Congratulations to Kawal & Winny and all coauthors. Their paper in Biosensors was recognized as EDITOR'S CHOICE ARTICLE.
Quantitative E. coli Enzyme Detection in Reporter Hydrogel-Coated Paper Using a Smartphone Camera Kawaljit Kaur; Winny Chelangat; Sergey I. Druzhinin; Nancy Wangechi Karuri; Mareike Müller; Holger Schönherr Biosensors 2021, Volume 11, Issue 1, 25
Welcome Ayane. First visiting student from Kobe University in our joint DAAD – JSPS project started her work
Master student Ayane Sugimachi and Prof. Dr. Kenichi Morigaki from Kobe University visit us for the local kick off meeting of our joint DAAD – JSPS project “Development and investigation of biomimetic lipid-polymer hybrid membranes for realizing a smart-cell-junction”. The stay of Ayane complements the current month long research stay of our master students Daniela Nordhoff and Andreas Jagic in Kobe. In 2022 and 2023 at least 4 more sets of reciprocal visits are planned to advance the research in this area.
Congratulations to our 2 new doctors: Dennis and Anna defended successfully on June 9th and June 10th 2022, respectively.
Dennis Gitau Njuguna defended his thesis entitled "Modified Polysaccharides for Cationic Dye Adsorption Applications". This thesis was made possible through a DAAD Ph.D. stipend. Anna Schulte worked on "Nanometer-Scale Functionalization and Structuring of Hydrogel and Polymer Brush Surfaces for Cell-Surface Studies". We wish both of you all the best in your new jobs!
2 Awards at POLY-CHAR [Halle | Siegen] 2022
Max and Pan received awards at the International Conference POLY-CHAR [Halle | Siegen] 2022. Congratulations, very well done! HYT stipend holder Max Müller was awarded a POLY-CHAR prize for the Best Oral Presentation for his work on "Chitosan-based nanogels for improved selective detection of pathogenic bacteria". A POLY-CHAR Prize for the Best Student Poster was awarded to our CSC stipend holder Pan Xu for her work on "Strong emission of excimers realized by dense packing of pyrenes in tailored Bola-amphiphile nanoassemblies".
POLY-CHAR [Halle | Siegen] 2022 - more than 100 participants and great Science.
The International Conference POLY-CHAR [Halle | Siegen] 2022, which took place online from May 22nd, 2022 to May 25th, 2022, was a great success.
Congratulation on best poster prize, Jiwar!
Jiwar Al-Zawity, who is Hans-Böckler PhD fellow, won the 1st prize for the best poster presentation at the 24th German Mucoviscidosis Conference (DTM 2021 online) for her poster on „Impact of Estradiol on the biofilm formation of Pseudomonas aeruginosa CF Isolates“. Congratulations to Jiwar and the whole team of the Junior research group from Mareike Müller including our collaboration Partners from Brest (France) who contributed to this achievement in the field of mucoviscidosis research!
Professor Holger Schönherr honored as Erudite Professor 2021
Erudite Professor is the highest recognition offered by the state of Kerala (India) for outstanding researchers. Between October 19th and 23rd 2021 a well attended and highly intensive 5 day online lecture series on "Microscopy for analyzing soft matter" was organized by nominator Prof. Sabu THOMAS, D.Sc., Ph.D., FRSC, FEurASc, Vice-Chancellor, Mahatma Gandhi University, Kottayam, Kerala, India.
Congratulations Dr. Choi!
Hongsuh, who defended his thesis entitled “Thermo-Responsive Polymer Brush Coatings on Titanium Substrates to Control Bacterial Colonization and Biofilm Growth” successfully on October 8th 2021, is our next young Ph.D.! From the entire PC-1 group: Congratulations, well done, Hongsuh, and all the best for your future! A big thank you goes to Michael Hess, who played an important part in this!
Nowsheen Goonoo recognized by the Royal Society for her her fantastic achievements
Our former Alexander von Humboldt fellow Dr. Nowsheen Goonoo is the Royal Society Rising Star Africa Prize winner 2021. Congratulations, Nowsheen! This is well deserved! We are looking forward to continued cooperation and joint research. Currently we collaborate with her and her institute, the Center for Biomedical and Biomaterials Research in Mauritius, in a project funded by the Tertiary Education Commission (Mauritius), Interdisciplinary/Inter-Institutional Team-based Research (Development of 2.5 D and 3 D nano hybrid scaffolds for regenerative medicine (tissue engineering) targeting: (i) bone regeneration in ageing adults (ii) skin regeneration in diabetic wound treatment) and in the joint BMBF project LEISHMACURE (led by Dr. Mareike Müller)
Congratulations! Editor’s Featured article in The Journal of Supercritical Fluids
The article “Enhanced microbial inactivation by carbon dioxide through mechanical effects” has been chosen as the September 2021 Editor’s Featured article in The Journal of Supercritical Fluids. The published work is part of the PhD thesis of Ratka Hoferick, that is supported by the Messer Group GmbH, Messer Industriegase GmbH, TH Köln and the STEPs Institute.
Detailed information on the article:
Journal of Supercritical Fluids 2021, 175, 105273.
Congratulations to Prof. Dr. Sagar Pal
Prof. Pal, who visited us in 2012 as as DAAD-funded visiting research fellow and assistant professor was appointed full professor at Indian Institute of Technology (ISM) Dhanbad, Jharkhand, India
Best lecture award for Dr. Dipankar Das at POLY-CHAR 2021
Our Alexander von Humboldt fellow Dr. Dipankar Das won the Award for the best oral presentation at the International Polymer Characterization Forum POLY-CHAR 2021 (Venice) for his talk on “Design of Crosslinked Pullulan derivative Nanogel Fibers through Anodic Aluminium Oxide Membranes”. Congratulations!
NAPARBA project started – Rapid screening for antibiotic resistant bacteria
Weltweit gelten antibiotikaresistente Bakterien als eines der größten Gesundheitsprobleme. Forschende der Universität Siegen entwickeln mit NAPARBA einen nanotechnologiebasierten Ansatz, der den schnellen Nachweis krank machender Bakterien ermöglichen soll.
Interdisziplinäre Ausbildung im medizinnahen Bereich
Mit ITN STIMULUS ist ein europäisches Ausbildungsnetzwerk im Bereich Biomaterialien an den Start gegangen, unter anderem mit Beteiligung der Universität Siegen und der ursprünglich aus der Universität ausgründeten Firma ATTO-TEC. Ziel ist die Weiterentwicklung intelligenter Wundauflagen, die bakterielle Infektionen erkennen und zudem gezielt behandeln können.
Aller guten Dinge sind drei... – congratulations to our third young doctor in 2020, Dr. Zhiyuan Jia!
All good things come in threes! Just before the second lockdown Zhiyuan Jia successfully defended her thesis entitled "Multiplexed Bacteria Detection and Discrimination by Enzyme Responsive Hydrogels" on December 16th 2020. Now we may call you Dr. Jia, and it is nice to see the successful completion of a fully coupled masters as well as PhD. degree of you and your husband Qimeng Song in Chemistry in Siegen. Well done & congratulations from the entire PC-I family!
Im Kleinsten gegen große Krankheiten
Mit der Weiterentwicklung des Center for Micro- and Nanochemistry and Engineering (Cµ) stärkt die Universität Siegen die medizinnahe Forschung mit (bio)chemischen Sensorik-Aspekten an der Naturwissenschaftlich-Technischen Fakultät.
Dr. Haider Bayat – endlich am Ziel! Congratulations!
Congratulations to our next Ph.D.! Haider, who defended successfully on September 25th 2020, successfully finished his long journey with PC-1 and completed his Ph.D. - herzlichen Glückwunsch!
Award Winning Lecture
Watch the award winning lecture from Nanoscientific Forum Europe on the social media: Again congratulations to Daniel, who is now online with his talk
The group’s first PhD. of 2020 - Dr. Benedikt Steinhoff!
Congratulations to our next young Ph.D.! Benne, who defended successfully on August 28th 2020, is the first to complete his thesis after the Corona outbreak – with many more to come. His Ph.D. Thesis “Comprehensive Approach for the Microscopic and Spectroscopic Characterization of Silver and Titanium Dioxide Nanomaterials in Aquatic Environments” completes the success of the ERA-Net SIINN project FENOMENO. Best wishes for the future and congratulations, Dr. Benne!
Mareike receives prestigeous prize of the Christiane Herzog Stiftung.
Der Preis der Christiane Herzog Stiftung zur wissenschaftlichen Nachwuchsförderung auf dem Gebiet der Mukoviszidose wird jährlich verliehen. Durch diesen Preis wird die Habilitandin Dr. Mareike Müller ihre Forschung in dem aktuellen Forschungsgebiet ausweiten können.
Dr. Nowsheen Goonoo receives distinction - Congratulations!
Our former Alexander von Humboldt fellow Nowsheen was honored in Dakar as one of the 15 International Rising Talents by the Loreal UNESCO Foundation.
Laborpraxis berichtet über ein Forschungsgebiet der PC 1
LP: Herr Prof. Schönherr,
Oberflächennanoblasen - was ist das?
Prof. Dr. Holger Schönherr: Oberflächennanoblasen sind sehr kleine deformierbare Gasbläschen, die an der Grenzfläche zwischen Feststoffen und einem meist wässrigen Medium anhaften können. Sie besitzen die Form einer flachen kugelförmigen Kappe und sind trotz des Laplacedrucks überraschenderweise sehr stabil.
Ganzes Interview lesen unter Kleine Bläschen - großes Potenzial
Siyu defended her Ph.D. thesis successfully. Congratulations!
Dr. Siyu Jiang successfully defended her excellent Ph.D. thesis entitled "Temperature-Triggered Attachment and Detachment of Eukaryotic Cells and Selective Cell Separation with Stimulus-Responsive Polymer Brushes" on October 15th, 2019. Her work took the initial cell release observed by Yvonne and Ekram to a completely new level and opens the door to possible applications in selective cell sorting and purification of induced pluripotent stem cells. Congratulations and all the best for your future!
Auftakt zur Herbststaffel 2019 an der Kinderuni Siegen - PC-1 mit begeistert aufgenommenen Auftritt
Zum Auftakt der Kinderuni ließen es Alessa Schneider und Lars Birlenbach im Audimax ordentlich knallen und begeisterten die 300 Kinder mit zahlreichen bunten und effektvollen Experimenten. Herzlichen Dank an die Firma Atto-Tec für die Unterstützung und die vielen helfenden Hände vor, während und nach der Veranstaltung, vor allem Alessa, Lars, Brigitte, Daniel, Max, Dennis & Alex.
Appointment as Assistant Professor in Shanghai Jiaotong University - Congratulations to Xiaoqiu!
Our Humboldt fellow Xiaoqiu Dou has been appointed in September 2019 as Assistant Professor in the State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering in the world famous Shanghai Jiaotong University. We congratulate Xiaoqiu with her appointment and wish her all the best and good luck for her research endeavors.
Congratulations Dr. Song... with assemblies of tiny cubes to his Ph.D. degree...
Qimeng successfully defended his Ph.D. thesis “Capillary Force-Driven Self-Organization of Microcubes for Multifunctional 3D Cell Microenvironments“ on July 5th 2019. In his thesis the central idea of the ERC project ASMIDIAS was finally realized in a massively parallel manner, exploiting self-assembly concepts at the water/air interface and applying this novel combinatorial approach for cell-surface interaction studies. Congratulations and all the best for your future!
Nanoscience and Nanotechnology in Siegen in the focus.
Our research in PC-1 and that of our colleagues in the School of Science and Technology is highlighted in a recent video.
Great success for Nicole, Daniel, Stephan and Sergey. Our cover image was chosen for J. Colloid Interf. Sci. & finally the identification of surface nanobubble and differentiation from silicone oil nanodroplets is accomplished!
The conclusive answer as to whether the tiny spherical cap-shaped features on surfaces at the solid-water interfaces, which are easily imaged by AFM, are indeed surface nanobubbles or silicone oil nanodroplets has been finally resolved by our new combined AFM-FLIM (fluorescence lifetime imaging microscopy) approach. As reported in J. Coll. Interf. Sci. 2019, 547, 162–170. (Nicole Hain, Stephan Handschuh-Wang, Daniel Wesner, Sergey I. Druzhinin, and Holger Schönherr, “Multimodal Microscopy-Based Identification of Surface Nanobubbles”) the determination of fluorescence lifetime of a suitable tracer dye renders this possible for the first time with (a) high spatial resolution and (b) probing the gas-liquid interface. The cover page in J. Colloid Interf. Sci. (many thanks to Xiaoqiu Dou for instantaneous help with the graphics!) underlines the importance of the report and the great work of Nicole, Daniel, Stephan and Sergey. Congratulations!
Erfolgreiche Promotionsprüfung - Dr. Dominik Ehm erster Absolvent 2019!
Dr. Dominik Ehm fertigte seine Dissertation zum Thema Untersuchungen zur potentiellen Nutzung des bakteriellen Quorum Sensing-Mechanismus für die Entwicklung von Schnelltests zur Salmonellendetektion auf Basis von anwendungsorientierten Arbeiten mit der Siegener Firma Quh-Lab an und schloss mit der Verteidigung am 18.01.2019 seine erfolgreiche Promotion ab (Erstgutachterin: Prof. Dr. Klaudia Witte; Zweitgutachter Prof. Dr. Holger Schönherr). Dominik wurde während der Arbeit von unserer Nachwuchsgruppenleiterin Dr. Mareike Müller fachlich angeleitet. Beiden herzliche Glückwünsche & auch weiterhin alles Gute!
Daniel Wesner für besten Vortrag beim Nanoscientific Forum Europe ausgezeichnet!
Beim ersten Nanoscientific Forum Europe (NSFE), das mit Unterstützung der Firma Park Systems vom 10. bis 12.10.2018 in Freiberg stattfand, wurde Dr. Daniel Wesner für den besten Vortrag der Konferenz ausgezeichnet: Probing Surface Nanobubbles with Combined Fluorescence Lifetime Imaging and Atomic Force Microscopy (weitere Koautoren: Sergey I. Druzhinin, Nicole Hain, and Holger Schönherr). Herzliche Glückwünsche!
FENOMENO on TV
Visitors from Krakow
In September we welcome two researchers from our collaborators's lab at the Jagiellonian University Krakow. Andrzej Balis and Dr. Karol Wolski, who work with Prof. Dr. Szczepan Zapotoczny, will work during their stay among others with our fluoresence lifetime imaging set up and AFM nanoindentation with our experts Sergey Druzhinin and Daniel Wesner. During a minisymposium on September 14th 2018 current research results were exchanged. Dr. Karol Wolski: Surface-initiated polymerizations as versatile methods for designing functional polymer brushes and Andrzej Balis: Mesoporous silica nanoparticles with solid cores as an efficient nanocontainers and nanoreactors
Diagnostic and therapeutic materials for combating bacterial infections - Very successful Bio-Nano-Summerschool completed. August 12-19, 2018.
Herzlich Willkommen zurück in Deutschland! We welcome Prof. Dr. Ngo Trinh Tung from Vietnam!
We welcome Prof. Dr. Ngo Trinh Tung from Vietnam, who joins our laboratory from August 1st - September 28th. He is funded by the DAAD Re-invitation Program for Former Scholarship Holders, 2018. In his lecture on September 14th 2018 he focused on the "Preparation and Properties Characterization of Natural Rubber Nanocomposites Reinforced with Graphene Oxide and Boehmite".
Chinese visitors at PC-1
Prof. Dr. He Zhao (Institute of Process Engineering, Chinese Academy of Sciences, Beijing) visited the group on August 6th 2018 and lectured on the current activities at the institute.
Visit of collaborator Prof. Dr. Chuanliang Feng (Shanghai Jiaotong University)
Prof. Dr. Chuanliang Feng (Shanghai Jiaotong University) stayed for 4 days in our group. He lectured on July 13th 2018 on Bioinspired chiral hydrogels. In the near future both groups will attempt to establish closer formal links and a lasting exchange.
Physical Chemistry I in the media: Risk asessment of nanoparticles in ERA NET project FEMOMENO
The project results of FENOMENO (www.fenomeno-nano.de) indicate that silver nanoparticles pose no risk after going through the wastewater treatment.
Physical Chemistry at the Open Day of the University 2018 - "chemical traffic light" and new approaches to detect bacteria
Benne, Willis and colleagues showed the so-called "chemical traffic light" to the public and highlighted our new approaches to detect bacteria and bacterial infections. In particular the kids were fascinated by the spontaneous color changes of the indigo dye solution.
Nobel laureate Prof. Dr. Joachim Frank honored with the honorary doctor degree
Nobel laureate Prof. Dr. Joachim Frank received the honorary doctor degree of the School of Science and Technology of the University of Siegen. During his visit he also participated in the joint colloquium of the School and the GDCh. We felt truly honored to have Prof. Dr. Joachim Frank as our guest and we are grateful for the inspiring lecture and for sharing not only his views on science, but also his advice how to succeed.
Highlight of collaborative work of Siyu Jiang with Dr. Nianjun Yang and Prof. Xin Jiang et al. (LOT, University of Siegen): The work was published recently in the top ranked journal Advanced Energy Materials (also highlighted in the inside back cover of the journal)
The collaborative work of Siyu Jiang with Dr. Nianjun Yang and Prof. Xin Jiang et al. (Lehrstuhl für Oberflächen- und Werkstofftechnologie, LOT, am Institut für Werkstofftechnik Universität Siegen) on Battery-like Supercapacitors from Vertically Aligned Carbon Nanofibers Coated Diamond was published recently in the top ranked journal Advanced Energy Materials (also highlighted in the inside back cover of the journal).
Dr. Imad Zamrik - Wholehearted congratulations!
Imad defended his Ph.D. Thesis entitled "Unraveling processes at curved AAO nanopores interfaces in situ by Reflectometric Interference Spectroscopy" on February 15th 2018. The disputation was followed by a party with unbelievably nice cakes (especially the Ph.D. cake is hard to beat) and delicious homemade food. On behalf of the entire group: all the best wishes for you and your lovely family!
Dr. Stephanie Müller - our first new Ph.D. in 2018!
Steffi successfully defended her Ph.D. thesis entitled "Responsive Nanoporous Anodic Aluminum Oxide/Silicon - Polymer Hybrid Systems for Biological Applications" on January 19th 2018. Her thesis, which featured important work on nanoporous alumina and nanoporous silicon, was carried out jointly at the University of Siegen and the University of South Australia in Adelaide. Congratulations, Steffi!
New methods how to find and detect pathogenic bacteria: Mareike and her team in the spotlight
Congratulations to Ping for another highlight!
Her highly successful work on reporter bacteria encapsulated in novel pyramidal hydrogel microarrays is highlighted on the inside cover of Issue 11 of Macromolecular Biosciences 2017!
Highlight October (3) - Junior Research group leader Dr. Mareike Müller and her team honored with the FoKoS Zukunftspreis 2017
Junior Research group leader Dr. Mareike Müller was honored on October 24th 2017 with the FoKoS Zukunftspreis 2017 for the interdisciplinary and innovative research of her team (incl. Dr. Ping Li, M.Sc. Faria Afzal, und Dr. Xiaoqiu Dou) in the area of applied microbiology. \"On the basis of fundamental and systematic microbiological research she contributed to a better understanding of the complex communities of microorganisms in relation to bacterial biofilms and infection. Thereby she addressed a topic of absolute novelty at the University of Siegen, which goes far beyond the borders of chemistry and biology." Congratulations to Mareike and her team!
Highlight October (2): Xiaoqiu Dou honored with the Jürgen Springer Prize for Young Scientists 2017 at Polychar-25 World Forum on Advanced Materials 2017 in Kuala Lumpur, Malaysia. Congratulations!
Dr. Xiaoqiu Dou excelled with her talk on "Novel 3D Micropatterned Poly(vinyl alcohol) Hydrogel Platform for the Controlled Multicellular Spheroids Formation" at Polychar-25, World Forum on Advanced Materials 2017 in Kuala Lumpur, Malaysia. In a competitive field of many promising young researchers she managed to convince the jury with her breakthrough discovery that has important implications for cancer drug testing. In the closing ceremony Xiaoqiu was awarded by Dr. Sven Henning, head of the Polychar Prize Committee, with the Jürgen Springer Prize for Young Scientists 2017. Xiaoqiu: wholehearted congratulations and all the best wishes for the future!
Highlight October (1): Springer Poster Award 2017 for Qimeng at the Kolloid-Tagung in Munich. Congratulations!
Qimeng Song was awarded for his poster entitled "Ordered structures by capillary force self-assembly of microscale cubes at the air-water interface: Design principles and possible applications" the Springer Poster Award at the Kolloid-Tagung 2017 "Multiresponsive systems" in München. This poster coauthored by Dr. Marc Steuber and Dr. Sergey I. Druzhinin marks a breakthrough in microparticle assembly and paves the way to new 3D cell microenvironments, among others. Qimeng: Congratulations for this well-deserved award and the hard & persistent work!
Congratulations Dr. Ping Li!
Ping successfully defended her Thesis on September 8th 2017! Her thesis entitled "Autoinducer Sensing by Reporter Bacteria Encapsulated in Microscale Hydrogel Matrices" included novel approaches to rapidly and selectively detect bacteria and work related to an AiF ZIM project that was initiated and carried out together with junior research group leader Dr. Mareike Müller and the local SME Quh-Lab Lebensmittelsicherheit in Siegen as well as collaboration partners in Singapore (Prof. Dr. Matthew Wook Chang, National University of Singapore) and China (Prof. Chuanliang Feng, Shanghai Jiaotong University). Congratulations, Ping. Well done!!!
Physical Chemistry Alumni Day on Saturday, September 9th 2017 with Career forum and networking
We invite students, researchers, colleagues and stipend
holders to join the “Career forum and networking“ event that
will take place as part of our Physical Chemistry Alumni Day on
Saturday, September 9th 2017. Many current and
former members of the Physical Chemistry I group will attend
and share old memories as well as new insight “obtained on the
job“. This event is aiming at providing an informal setting for
networking and to learn from the experience of the more
experienced colleagues, e.g. how to plan a career, how to apply
for jobs etc. Try to find out first-hand, how this may work for
Guests are explicitly welcome!
Congratulations to Ping for an absolute highlight!
Her work on reporter bacteria encapsulated in novel hydrogel microarrays is highlighted on the cover of Issue 31 of Langmuir 2017!
Alexander von Humboldt Foundation Return fellowship awarded to Dr. Nowsheen Goonoo! Congratulations!
Wholehearted congratulations Dr. Nowsheen Goonoo, who was awarded a Return fellowship of the Alexander von Humboldt Foundation to be able to continue her research at the Centre for Biomedical and Biomaterials Research (CBBR) at the University of Mauritius for 12 months. We wish Nowsheen all the best of luck with the new challenging project(s) ahead and hope to meet her soon again.
"Long night of science Siegen 2017" - again with a talk from PC-1.
Junior Group Leader Dr. Mareike Müller addressed in her talk "Eavesdropping on bacterial biofilms" ("Lauschangriff auf bakterielle Biofilme").
Pleased to meet you. Hope you guess my name ... since May 19th: Dr. Marc Steuber!
Congratulations! Marc successfully defended his Ph.D. thesis entitled “Fabrication and micromanipulation of microscale building blocks for artificial 3D cell microenvironments with defined topography and biochemical properties“ on May 19th!
Dr. Katrin Tücking with successful Ph.D. defense!
Katrin received her degree on March 31st! Her thesis entitled “Bioresponsive Polymer Systems for the Signaling of Bacterial Enzymes with Vesicles and Nanoporous Silicon Films“ featured work from the EU project BacterioSafe and also experiments carried out in Nico Voelcker’s lab in Adelaide. Congratulations, Katrin. Well done!!!
Macromolecular Engineering of Surface-Grafted Polymer Brushes
We are cooperation partners of Prof. Szczepan Zapotoczny (Faculty of Chemistry of the Jagiellonian University, Kraków, Poland) in his TEAM grant project that was funded by the Foundation for Polish Science. The project entitled: ”Macromolecular Engineering of Surface-Grafted Polymer Brushes” will be realized in cooperation with Prof. Szczepan Zapotoczny as well as Prof. Ivan Scheblykin (University of Lund, Sweden). For more information, see
Prämierte Forschungsarbeit bei Jugend forscht!
Die Forschungsarbeit der Abiturientin Jessica Patzelt vom
Gymnasium am Markt in Bünde, die bei uns von Dr. Yvonne Voss
und Dr. Inga Lilge tatkräftig unterstützt und bei ihren
Experimenten in Siegen angeleitet wurde, belegte beim
Regionalentscheid den 1. Platz in der Kategorie Jugend forscht
Biologie. Wir freuen uns mit Jessica, herzlichen Glückwunsch!
Jugend forscht! wird seit 1966 unterstützt vom Bayer-Konzern.
Do you come from a land down under?!
Dimitri Jung is our next exchange master student, who works
on his thesis with Dr. Thomas Michl and Prof. Hans Griesser at
the University of South Australia. All the best of luck,
Dimitri, and no worries!
Kann Aloe Vera bei der Züchtung von Knochenzellen helfen, Frau Goonoo?
In Siegen holt sich Nowsheen Goonoo jeden Tag ein Stück Heimat ins Labor. Die aus Mauritius stammende Wissenschaftlerin experimentiert mit Inhaltsstoffen aus Pflanzen, die dort heimisch sind.
"Schon mein Großvater kannte die Wirkung der Aloe vera und hat damit meine kleinen Wunden geheilt“, erinnert sie sich. Was die Chemikerin aus der Pflanze nutzen möchte, sieht aus wie ein aufgequollenes Gummibärchen: das Gel aus dem Wasserspeichergewebe der Blätter. In Kosmetika ist es schon lange ein wichtiger Inhaltsstoff. Goonoo will aus Bestandteilen des Gels und weiteren synthetischen Polymeren Fasern für ein Trägermaterial herstellen, das Zellwachstum unterstützen kann.
Congratulations to Dr. Inga Lilge!
Inga successfully finished her outstanding Ph.D. thesis with
a successful defense on November 18th! Her thesis is
entitled: “Decoupled Biochemical and Mechanical Cues Relevant
for Cell-Surface Interactions by Poly(acrylamide) Block
Copolymer Brushes in Two and Three Dimensions“
Special issue of Macromolecular Chemistry and Physics showcases European Australian polymer science.
The highlights of the special European-Australian session of the 2015 EPF Meeting in Dresden are compiled in a special issue of Macromolecular Chemistry and Physics, which showcases European Australian polymer science. Read contributions to the special issue
PC-1 Down Under again!
Anna Schulte is currently working at the University of South Australia on her Master Thesis. Good luck and congratulation for the DAAD travel stipend!
Successful defense of excellent Ph.D. thesis - Congratulations to Dr. Sven-Christian Sidenstein!
Wholehearted congratulations to Sven, who successfully
finished his outstanding Ph.D. thesis with a successful defense
on August 11th! The title of his dissertation, which
was completed at the MPI for Biophysical Chemistry in Göttingen
under supervision of Prof. Dr. Stefan Hell, is "Protected STED
and Multicolour Multilevel STED Nanoscopy".
Siegener Nacht der Wissenschaft - Samstag, 09. Juli 2016 (http://www.ndws.de/)
Die angewandte Forschung der AG "Physikalische Chemie I" und des Cµ (Zentrum für Mikro-/Nanochemie und -Technologie an der Universität Siegen) im Kontext: Chemische Signale und biochemische "Kriegsführung" – Neue Ansätze um Bakterien mit ihren eigenen Waffen zu schlagen
We wholeheartedly welcome Patricia Enrique (CSIC, Madrid, Spain) as a visiting research Ph.D. student in the group!
Fantastic success of Katrin
Katrin's news article on “Season the soup: the important role of salt additives” was selected as one of the top entries in the Macromolecular Journals Writing Competition. Congratulations!
Doctor number #3 in 2016 in PC 1
Congratulations to Morteza, who successfully finished his Ph.D. thesis with a successful defense on February 5th! The title of his dissertation is "Chitosan Hydrogels Modified with Fluorogenic and Chromogenic Substrates for the Autonomous Sensing of Bacterial Enzymes".
Doctor number #2 in 2016 in PC 1
Congratulations to Stephan, who successfully finished his Ph.D. thesis! The title of his dissertation is "Analysis of Soft Matter Interfaces by Fluorescence Lifetime Imaging Microscopy"
The first of the many “2016 doctors“ in PC 1: Congratulations to Nicole, who successfully finished her Ph.D. thesis!
Nicole Hain successfully defended her Ph.D. thesis entitled “Investigation of Surface Nanobubbles with Combined AFM and Fluorescence Lifetime Imaging Microscopy (FLIM)” (14.01.2016). Well done and wholehearted congratulation to the young doctor!
Welcome Chia-Hua and Morteza!
We welcome Chia-Hua Lin (National Chiao Tung University, Taiwan) and Morteza Hasanzadeh Kafshgari (Mawson Institute, University of South Australia, Adelaide, Australia), who visit the group and work on research projects in the area of nanoporous alumina and drug delivery using hybrid inorganic-polymeric particles, respectively.
Congratulations to Ping for "best student contribution" at international conference in Delft (NL)
For her talk on the "Fabrication of methacrylate alginate beads for bioencapsulation of cells“ Ping Li was awarded the prize for the “best student contribution" at the 23. International Conference on Bioencapsulation in Delft (The Netherlands), 2.-4. September 2015.
Congratulations to Dr. Ekram Wassel, who defended successfully their Ph.D. thesis!
Ekram Wassel ("Thermoresponsive properties of poly(di(ethylene glycol) methylether methacrylate) brushes on gold: Protein adsorption, cell desorption and adhesive properties") successfully defended her Ph.D. thesis on September 2nd 2015. Well done and wholehearted congratulation to the young doctor!
Biofilm Project in the media
The recently started biofilm project ("Regional Research Partnerships" - "Ausspionieren Biofilm-bildender Bakterien in Rohren"), which we jointly carry out with the Analytical Chemistry Department (Prof. Carsten Engelhard) and the local company Quh-Lab - Food Safety (CEO Dr. med. vet. Martin Frettlöh) was covered in a regional TV program. Click here to watch.
Congratulations to Katrin for prize-winning best oral presentation at the 5th International Symposium of Surface and Interface of Biomaterials in Sydney
Katrin-Stephanie Tücking was awarded with a certificate of excellence for the best oral presentation in the section Biointerfaces at the 5th International Symposium of Surface and Interface of Biomaterials held in conjunction with the 24th Annual Conference of the Australasian Society for Biomaterials and Tissue Engineering (ASBTE), 7 - 10 April 2015, Sydney, Australia.
ERA NET SIINN project FENOMENO coordinated by Holger Schönherr approved
The trans-EU project FENOMENO, which was approved in the 2nd round of the FP7 ERA-NET call on Nanosafety - Safe Implementation of Innovative Nanoscience and Nanotechnology (SIINN), will start on April 1st 2015. Together with the research groups of Prof. Witte, Prof. Engelhard, Prof. Kuhnert, and Prof. Gethmann (all Faculty IV, University of Siegen), and partners from Austria (University of Innsbruck, Mondsee) and Portugal (University of Aveiro), the group of project coordinator Holger Schönherr will address the fate and effect of wastewater-borne manufactured nanomaterials in aquatic ecosystems.
Successful proposal in the cross-faculty call "Regional Research Partnerships"
A joint project with Analytical Chemistry (Prof. Carsten Engelhard) and the local company Quh-Lab - Food Safety (CEO Dr. med. vet. Martin Frettlöh) was recently approved. The project ("Ausspionieren Biofilm-bildender Bakterien in Rohren") aims at the development of methods to detect harmful bacteria that may hide in water pipes.
Katrin again down under: DAAD stipend for 6 month stay in Australia!
Congratulations to Katrin, who managed to secure a DAAD stipend for a 6 month stay in the labs of our collaborator Nico Voelcker at the Mawson Institute, University of South Australia, Adelaide.
Studienpreis for Anna Schulte - Congratulations!
On December 16th 2014 Anna Schulte (center) received the "Studienpreis der Alumni Chemie Siegen (ACS) 2014" for her excellent performance and marks in her studies for her B.Sc. degree, which she completed with her outstanding bachelor thesis on the "Charakterisierung von Poly(styrol)-block-poly(acrylsäure) Vesikeln durch Rasterkraft- und Fluoreszenzlebensdauer-Mikroskopie". Congratulations and all the best wishes, Anna!
AiF-ZIM project started
Together with the local company Quh-Lab - Food Safety we have recently secured an AiF-ZIM project to develop innovative solutions for food safety monitoring. In the coming 2.5 years Dr. Mareike Müller, Ping Li (@ Physical Chemistry I with Prof. Dr. Holger Schönherr) and Dominik Ehm (@ Quh-Lab - Food Safety with CEO Dr. med. vet. Martin Frettlöh) will work on the development of point of care applications in the area of food monitoring and consumer safety. The project is funded in the funding program of the Federal Ministry of Economics and Technology in Germany: Central Innovation Program SME (ZIM: Zentrales Innovationsprogramm Mittelstand).
Two new Doctors in PC 1: Congratulations to Wiktoria and Simon, who defended sucessfully their Ph.D. theses!
Wiktoria Walczyk (On the shape and dimensions of "surface nanobubbles" in Atomic Force Microscopy, 25.09.2014) and Simon Haas (Enzyme-degradable block copolymer vesicles for infection signaling applications, 09.10.2014) successfully defended their Ph.D. theses. Well done & wholehearted congratulation to the young doctors!
TUBITAK grant for organization of workshop in Istanbul, October 15 - 17, 2014
Together with Prof. Bahar Basim (Ozyegin University, Turkey) we secured a grant from TUBITAK (http://www.tubitak.gov.tr/en) to carry out a workshop on "Nanotechnology in Manufacturing" NIM2014 in Istanbul October 15 - 17, 2014. More information is found here.
Successful International Conference SPM on SPM 2014 in Toronto co-organized by PC 1
The International Conference on Scanning Probe Microscopy on Soft and Polymeric Materials, SPM on SPM 2014, was held between September 02 - 06, 2014 in Toronto, Canada. Keynote lecturers were AFM and single molecule pioneers Prof. Paul Hansma (UC Santa Barbara) and Prof. Hermann Gaub (LMU München). For more information see: http://spm-p.org/
We welcome Josh Cottom, who started his Ph.D. at the University of Leeds with Kevin Critchley, and will get insight into the fabrication of precision nanoporous alumina membranes.
Katrin successful at the Leibniz Young Polymer Scientist Forum 2014 in Aachen
Congratulations to Katrin! She won with her group the "Award for the best presentation of how to approach future challenges in polymer sciences". The prize over 1000 Euros was given to a team of five junior researchers, including Katrin, in the award ceremony on August 28th 2014. The Leibniz Young Polymer Scientist Forum, organized by DWI and Evonik Industries in Aachen, is the place for young polymer scientists to meet and discuss important challenges in this fundamental field of research. The two-day event provided a forum both to sharpen current polymer scientific questions and to identify new challenges. Successful candidates for participation at the forum were selected from a larger group of applicants. At the Leibniz Young Polymer Scientist Forum, the young scientists attended focused workshops, shared their expertise and learned to be part of an interdisciplinary team.
Press release, RWTH Aachen
Jess Bean from Toby Jenkin's group at the University of Bath visit us for 6 months, in parts funded by a DAAD stipend. Jess will combine her responsive hydrogels with micro- and nanostructuring approaches of our group to improve the sensing of pathogenic bacteria. Again welcome, and all the best of luck with your project!
Bio-Nano Summer School 2014 in Hirschegg
The postdocs and Ph.D. students of the PC 1 attended the 4th Bionanosummerschool in Hirschegg, Kleinwalsertal, Austria, organized jointly by the Universities of Bath, Leeds and our group in Siegen. The summerschool brought together aspiring young researchers from the UK (Leeds, Bath, Oxford), Poland (Krakow), and Germany (Darmstadt, Siegen: Macromolecular Chemistry, the Nöll Group and of course PC 1). Owing to the great success and positive feedback the 5th edition has been scheduled for 16th - 23rd August 2015.
Sommerfest / PC-1 group reunion
On July 19th the big PC-1 group reunion / Sommerfest 2014 took place. Former postdocs, Ph.D. and master students shared their experience regarding the transition from University to industry and provided interesting insight into life beyond the labs in the University. After an inspiring mini-symposium the discussions continued after a lab tour at the actual Sommerfest in Freudenberg until late.
More pictures from the sommerfest (Password protected)
Congratulations Steffi for the Best Poster Award in Micro/Nanoengineering!
Steffi Müller's poster "Antifouling polymer brush coating of nanoporous alumina: Synthesis, characterization and cell-surface interaction tests" convinced the jury at the 2014 Annual Conference of the Australasian Society for Biomaterials and Tissue Engineering (ASBTE) in Lorne, Australia. The prize in Micro/Nanoengineering was one of two poster awards at the meeting and comes with a reward of 1000 $, which Steffi can spend at the Australian National Fabrication Facility at the Ian Wark Research Institute (University of South Australia) during her research visit later this year to the Mawson Institute in Adelaide in the framework of our DAAD-ATN project "Optical Biosensors for Wound-Colonising Bacteria". Press release (german)
Welcome to Fransisca!
We wholeheartedly welcome Fransiska Sri Herwahyu Krismastuti, who comes from the Mawson Research Institute / University of Southern Australia in Adelaide (Australia) and will spend a 3 month research stay in our laboratories funded by the joint DAAD-ATN project "Optical Biosensors for Wound-Colonising Bacteria" of Prof. Nico Voelcker (Mawson Research Institute) and Prof. Holger Schönherr (University of Siegen). Press release (german)
Fascination Nanoscience and Everyday Applications
Professor Schönherr was invited to lecture at the official opening of the MINToringSI 2014.
"Down under is calling" - Exchange program with the University of South Australia
Katrin Tücking and Steffi Müller will work in the labs of our collaborator Nico Voelcker at the Mawson Institute (University of South Australia, Adelaide) in a joint research project & exchange program funded by the EU (FP7, KOALA - Novel strategies for wound management). Good luck & good results and see you back in May!
Congratulations Stephan & Daniel!
Their collaborative efforts with the Jiang group (LOT) (Controlled Surface Chemistry of Diamond/β-SiC Composite Films for Preferential Protein Adsorption, Tao Wang, Stephan Handschuh-Wang, Yang Yang, Hao Zhuang, Christoph Schlemper, Daniel Wesner, Holger Schönherr, Wenjun Zhang and Xin Jiang) were published recently in Langmuir.
Mohammad's key paper (Fabrication of Complex Free-Standing Nanostructures with Concave and Convex Curvature via the Layer-by-Layer Approach, Mohammad Raoufi and Holger Schönherr) was accepted in Langmuir.
Congratulation Katrin and Stephan!
Their paper (Bacterial enzyme responsive polymersomes: A closer look at the degradation mechanism of PEG-block-PLA vesicles, Katrin-Stephanie Tücking, Stephan Handschuh-Wang, Holger Schönherr) was accepted for publication in Australian Journal of Chemistry.
Studienpreis for Sven Sidenstein
On December 17th 2013 Sven Sidenstein received the "Studienpreis der Alumni Chemie Siegen (ACS) 2013" for his excellent performance and marks in his studies for his M.Sc. degree. Congratulations and all the best wishes, Sven!
PC1 participates in "Science Schau Fenster"
From October 5th to 19th the Physical Chemistry I has a poster, various objects and a demonstrator on display as part of the "Science Schau Fenster" at Glasbau Gittig (Löhrstraße 14, Siegen-Oberstadt) to explain and highlight the indicator wound dressings for the in situ detection of bacterial infection in wounds developed in BacterioSafe.
PC1 participated in the international "Soft Control" workshop at the TU Darmstadt together with groups from AIT (Austria), Twente (The Netherlands), Bath (UK) and the TU Darmstadt.
Physical Chemistry I participates in public science rally
The Physical Chemistry I participates in the public science rally ("Uni kommt in die Stadt") on September 8th 2013 with hands-on experiments revolving around indicator wound dressings for the in situ detection of bacterial infection in wounds.
During the ceremony at the "Jahresfeier" of the Faculty of Science and Technology on April 12th in the Apollo theater in Siegen, our successful recent alumni were handed their diplomas. We congratulate our Bachelor students Benedikt Steinhoff and Manuel Roesener! All our Master students, i.e. Inga Lilge, Stephanie Müller, Sven-Christian Sidenstein and Christian Schragen, received in addition to their Master diplomas also a special gift from the hands of the Dean Prof. Pietsch for their excellent performance. Marc Steuber, who could not attend, and Katrin-Stephanie Tücking, who is currently staying at the Mawson Institute of the University of South Australia in Adelaide as part of her Ph.D. program, also finished their degrees with excellent performance. Congratulations to you all and we are looking forward for continued success in your Ph.D. projects in PC1 and Christian all the best in his job in industry!
From the left: M.Sc. Inga Lilge, M.Sc. Stephanie Müller, Prof. Dr. Holger Schönherr, M.Sc. Sven-Christian Sidenstein, M.Sc. Christian Schragen
POLYCHAR 21: Materials Science Preis für Prof. Schönherr
Während der internationalen Tagung POLYCHAR 21 (POLYCHAR World Forum on Advanced Materials) in Gwangju (Südkorea) erhielt Prof. Dr. Holger Schönherr den Internationalen POLYCHAR Materials Science Preis in Anerkennung seiner hervorragenden Arbeiten auf den Gebieten der "Chemie und Physik von organischen und polymeren Oberflächen und Biogrenzflächen" sowie "seiner erfolgreichen internationalen Kooperation". Die Chemie und Physik von organischen und polymeren Oberflächen und Biogrenzflächen stehen zentral im Fokus der Forschung von Prof. Schönherrs internationalen Arbeitsgruppe, in der ein gut 25 köpfiges Team an selbst-organisierten Polymersystemen (vor allem Polymerkapseln und Hydrogelen zur Erkennung von Wundinfektionen und der Abgabe von Therapeutika), nanostrukturierten Polymeren, responsiven und schaltbaren Oberflächen, Oberflächenanalyse mittels Rasterkraftmikroskopie und der Selbstorganisation kleiner Mikrobausteine zur Herstellung asymmetrischer Mikroumgebungen für Untersuchungen von Zell-Oberflächenwechselwirkungen arbeiten.
Gregor down under
In January and February 2013 Dipl.-Ing. Gregor Schulte spent two months in Adelaide at the University of South Australia. He stayed with the group of Nico Voelcker to carry out research within the "KOALA - Novel strategies for wound management" project. The visit was funded by "Marie Curie Actions - International Research Staff Exchange Scheme (IRSES)". Welcome back, Gregor!
Inga's paper (covalently Cross-Linked Poly(acrylamide) Brushes on Gold with Tunable Mechanical Properties via Surface-Initiated Atom Transfer Radical Polymerization, Inga Lilge, Holger Schönherr) was accepted in European Polymer Journal.
Wiktoria's paper (The effect of Peak Force Tapping Mode AFM imaging on the apparent shape of surface nanobubbles, Wiktoria Walczyk, Peter Schön, Holger Schönherr ) was accepted in J. Phys.: Condens. Matter
Bio-Nano Summerschool in Hirschegg 2012
Die Physikalische Chemie 1 nimmt vom 28.7 bis 4.8 2012 an der Bio-Nano Summerschool in Hirschegg (Kleinwalsertal, Österreich) teil.
Dr. Sagar Pal, Indian School of Mines, Jharkhand, India, received a DAAD - Fellowship and is visiting our group in June and July 2012. Welcome, Dr. Pal!
POLYCHAR 20: IUPAC-Posterpreis für Sven Sidenstein
Bei der internationalen Fachtagung POLYCHAR 20 - 20th World Forum on Advanced Materials -, die vom 26. bis 30. März 2012 in Dubrovnik (Kroatien) stattfand wurde Sven-Christian Sidenstein, der zurzeit in der Physikalischen Chemie I seine Masterarbeit anfertigt, der IUPAC (International Union of Pure and Applied Chemistry) Posterpreis verliehen. In seinem Posterbeitrag "Internal organization does matter: Tracer-diffusion in poly(methyl acrylate) brushes and spin-coated films" (Mitautoren: Dr. Herbert Kneppe & Prof. Dr. Holger Schönherr) präsentierte Sven-Christian Sidenstein die Ergebnisse seiner Bachelorarbeit und erste Messergebnisse eines im Rahmen seiner Masterarbeit zusammen mit Dr. Kneppe konzipierten und realisierten Fluoreszenzmikroskopie-Experiments. Mit dem neuen Versuchsaufbau können die Rotation, Orientierung und Translation einzelner Farbstoffmoleküle in dünnsten Polymerschichten aufgezeichnet werden. Dabei standen neben der Synthese und Charakterisierung von sog. Polymerbürsten vor allem die Untersuchung des Diffusionsverhaltens von Farbstoffmolekülen in Schichten verschiedener Architektur im Fokus, sowie der Nachweis, dass tatsächlich die Rotation einzelner Farbstoffmoleküle als "Nanosonden" in seinem Versuchsaufbau mit hoher Zeitauflösung gemessen werden kann.
DAAD-Preis für Faria Afzal
Faria Afzal was awarded the "Preis des Deutschen Akademischen Austausch Dienstes 2011" for her Master thesis titled "A Novel Method for Petroleumbased Accelerant Detection in Arson with Gas Chromatography-Mass Spectrocopy in Combination with Multivariate Data Analysis" (Betreuer: Dr. Henning Beer, Naturwiss.-Techn. Fakultät, Dept. Chemie). She received the price on November 17th, 2011, from Prof. Haring-Bolivar. Congratulations, Faria!
Bio-Nano Summerschool in Hirschegg 2011
Die gesamte Physikalische Chemie 1 nimmt vom 18. bis 24. September 2011 an der Bio-Nano Summerschool in Hirschegg (Kleinwalsertal, Österreich) teil.
Raphael-Eduard-Liesegang-Preis an Prof. Schönherr verliehen
Professor Dr. Holger Schönherr wurde am 6. September in Berlin anlässlich der 45. Hauptversammlung der deutschen Kolloidgesellschaft der reputable Raphael-Eduard-Liesegang-Preis verliehen. Die Verleihung des Preises erfolgte insbesondere "in Würdigung für seine Beiträge zur Herstellung organischer und polymerer Oberflächen und deren Analyse mittels Rastersondenmikroskopie". Urkunde und Gedenkmünze wurden Professor Schönherr vom Vorsitzenden der Kolloidgesellschaft Dr. Joachim Venzmer (Evonik Goldschmidt GmbH, Essen) überreicht.
Prof. Schönherr erhält EU-Mittel in Höhe von 1,5 Million Euro
In der prestigeträchtigen Exzellenzförderung für Nachwuchswissenschaftler "ERC Starting Grant" konnte Prof. Dr. Holger Schönherr punkten. Er war mit seinem Antrag "ASMIDIAS" ("Asymmetric Microenvironments by Directed Assembly") erfolgreich. Mit knapp 1,5 Millionen Euro können er und sein internationales Team in den kommenden 5 Jahren die Selbstorganisation kleiner Mikrobausteine zur Herstellung asymmetrischer Mikroumgebungen erforschen.
Die Physikalische Chemie I nimmt am 15. NRW-Tag in Siegen mit einem Experimentalbeitrag an der Unimeile im Herrengarten teil. Dabei wird Schülerinnen und Schülern mit Experimenten die Oberflächenspannung näher gebracht.
Posterbeitrag zum NRW-Tag
A delegation from the Materials Science and Technology group (University of Twente, MESA+ Institute for Nanotechnology) visits our group. For the afternoon we organize a "minisymposium".
Regina Fuchs received a stipend of the Studienförderfonds Siegen for a "studentische Hilfskraft-Stelle" for 1 year to develop and refine a new microscopy setup in our group. Congratulations Regina! Sven Sidenstein also was awarded with a stipend of the Studienförderfonds Siegen. Wholehearted congratulations also to Sven!
M.Sc. Wiktoria Walczyk (previously University of Twente) obtained a stipend for "Stipendium für weibliche Studenten und Graduierte an der Universität Siegen" and will start in November as Ph.D. student in the group. Congratulations and welcome Wiktoria!
Dr. Bo Song (Tsinghua University, Beijing, PRC) received a postdoc grant of the Alexander-von-Humboldt foundation and will join the group for 2 years starting October 1st 2009. Congratulations and welcome Bo!
Dr. Jordi Díaz, University of Barcelona, visits our lab between 31. August & 4. September for joint AFM - EFM experiments. His stay is supported by a "Programma de Treball" grant of the University of Barcelona, for which he applied successfully.
We welcome our first international guest researcher: B.Sc. Sina Ghassemi (Nanotechnology program, MESA+ Institute for Nanotechnology, University of Twente) will carry out research in the framework of his internship in the period of 15.05. - 15.08.2009.
Dr. Davide Tranchida secured a 1 year extension of his postdoc grant of the Alexander-von-Humboldt foundation. Congratulations, Davide!
G. Julius Vancso and Holger Schönherr (University of Twente, Netherlands) win an instrument grant in the Veeco Labs Research Grant Program, "HarmoniX Innovation" for "Chemically Sensitive Probing with HarmoniX".
Our first postdoc started his work. Dr. Davide Tranchida joined the group financed by a postdoc grant of the Alexander-von-Humboldt foundation. A very warm welcome, Davide!