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Dr. Katharina Brassat

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Biography
Publications
Dr. Katharina Brassat

DFG Graduiertenkolleg Micro- and Nanostructures in Optoelectronics and Photonics

Research Student - Kollegiatin im DFG Graduiertenkolleg "Micro- and Nanostructures in Optoelectronics and Photonics"

Institut für Leichtbau mit Hybridsystemen (ILH)

Member - Former

Nanopatterning - Nanoanalysis - Photonic Materials

PostDoc

Phone:
+49 5251 60-2734
Fax:
+49 5251 60-3247
Office:
A4.222 (Map)
Web:
Visitor:
Warburger Str. 100
33098 Paderborn
Postal Address:
Warburger Str. 100
33098 Paderborn

Research

Large-area surface nanopatterning by self-assembly techniques:

Block copolymer lithography

Nanosphere lithography

Self-assembled monolayers (SAMs) + soft lithography

 

Application of nanopatterned surfaces for functional (bio-) interfaces

DNA origami arrays

Nanostructured protein coatings

Nanostructured electrodes for electrooptics in liquid crystals

 

Nanoparticles

Perovskite nanocrystals

Nobel metal nanoparticle placement

Teaching

Current teaching

  • Master Materials Science: Lab course: Material analysis and characterization
  • Master Physics: Lab course

Bachelor and Master thesis advising (Physics)

Project studies (Chemical engineering studies)

04/2018 - today

PostDoc, Dept. of Physics, Paderborn University

Materials surface design

- Self-assembed nanopatterning: Block copolymer lithography, nanosphere lithography

- Order and biointerfaces: DNA origamis, protein arrays

- Perovskite nanocrystals

- Biological cells on patterned Ti-6Al-4V alloys

04/2012 - 03/2018

PhD, Department of Physics, University of Paderborn

Thesis: Surface nanopatterning by self-assembly techniques: Nanosphere- and block copolymer lithography

- Nanosphere lithography

- Blockcopolymer lithography

- Soft lithography with PDMS

- (Template-assisted) self-assembly of colloidal nanoparticles

- Nanogap electrodes for dielectrophoresis

10/2010 - 03/2012

Master of Science in Chemistry at University of Paderborn

Focus "Optoelectronics and Photonics"

M. Sc. Thesis: Selbstorganisierte Anordnung von Nanokugeln auf vorstrukturierten Siliziumoberflächen, Lehrstuhl für Experimentalphysik

10/2007 - 09/2010

Bachelor of Science in Chemistry at University of Paderborn

B. Sc. Thesis: Neuartige flüssigkristalline Blue-Phase-Systeme, Lehrstuhl Physikalische Chemie

Peer reviewed publications

- K. Brassat, D. Kool, J. Bürger, J. K. N. Lindner, Hierarchical nanopores by block copolymer lithography on surfaces of different materials pre-patterned by nanosphere lithography, Nanoscale (2018) DOI: 10.1039/C8NR01397G

- K. Brassat*, S. Ramakrishnan*, J. Bürger, M. Hanke, M. Doostdar, J. K. N. Lindner, G. Grundmeier, A. Keller, On the adsorption of DNA origami nanostructures in nanohole arrays, Langmuir (2018) DOI: 10.1021/acs.langmuir.8b00793

- A. A. Rüdiger, K. Brassat, J. K. N. Lindner, W. Bremser, O. I. Strube, Easily accessible protein nanostructures via enzyme mediated addressing, Langmuir 34, 4264 (2018), doi: 10.1021/acs.langmuir.7b04089

- A. Wolk, M. Rosenthal, S. Neuhaus, K. Huber, K. Brassat, J. K. N. Lindner, R. Grothe, G. Grundmeier, W. Bremser, R. Wilhelm, Functionalized graphene oxide quantum dots: synthesis, characterisation and application, Scientific reports 8, 5843, 2018, doi: 10.1038/s41598-018-24062-2

- M. Wahle, K. Brassat, J. Ebel, J. Bürger, J. K. N. Lindner, H.-S. Kitzerow, Two-dimensional switchable blue phase gratings manufactured by nanosphere lithography, Optics Express 25(19), 22608 (2017); doi: 10.1364/OE.25.022607

- T. Meyers, F. F. Vidor, K. Brassat, J. K. N. Lindner, U. Hilleringmann, Low-voltage DNTT-based thin-film transistors and inverters for flexible electronics, Microelectronic Engineering 174, 35 (2017); doi: 10.1016/j.mee.2016.12.018

- K. Brassat, F. Assion, U. Hilleringmann, J. K. N. Lindner, Self-organization of nanospheres in trenches on silicon surfaces, PSS a 210 (8), 1485-1489 (2013) (cover); doi: 10.1002/pssa.201200899

- K. Brassat, J. K. N. Lindner, A template-assisted self-organization process for the formation of a linear arrangement of pairs of metallic tips, MRS Online Proceedings Library 1663 (2014) mrsf13-1663-ww04-09

Conference contributions

- Invited talk: K. Brassat, Protein and DNA origami arrays on large areas by directed self-assembly, EMRS Fall Meeting 2018, Warsaw, Poland, 17.-20.09.2018

- K. Brassat, A. Taube, D. Kool, L. Tasche, K. P. Hoyer, M. Schaper, J. K. N. Lindner, Ti-6Al-4V alloy: 3D printing of lightweight implants and nanopatterning by self-assembly, EMRS Fall Meeting 2018, Warsaw, Poland,17.-20.09.2018

- K. Brassat, A. Brüngeler, W. Bremser, O. Strube, J. K. N. Lindner, Nanoscopic protein arrays on BCP prepatterned surfaces, EMRS Spring Meeting 2018, Straßbourg, France, 18.-22.06.2018

- K. Brassat, D. Kool, A. Taube, M. Schaper, J. K. N. Lindner, Morphology investigation of nanopores by block copolymer lithography on different material surfaces, EMRS Spring Meeting 2018, Straßbourg, France, 18.-22.06.2018

- K. Brassat, S. Ramakrishnan, A. Keller, J. K. N. Lindner, Hierarchical nanopatterns by site-selective DNA origami adsorption on pre-patterned surface, MRS Spring Meeting 2018, Phoenix, Arizona, 02.-06.04.2018

- D. Kool, K. Brassat, J. K. N. Lindner, Hierarchical nanostructures by combining block copolymer and nanosphere lithography, Frühjahrstagung DPG 2018, Berlin, Germany, 11.-16.03.2018

- J. Bürger, K. Brassat, T. Meyers, U. Hilleringmann, J. K. N. Lindner, Large-area nanopatterns in elastomers by nanosphere mask replication, Frühjahrstagung DPG 2018, Berlin, Germany, 11.-16.03.2018

- K. Brassat, J. Bürger, D. Kool, J. K. N. Lindner, Micro- and nanopatterned surfaces with tailored chemical and topographical contrast by self-assembly techniques, EMRS Fall Meeting 2017, Warsaw, Poland, 18.-21.09.2017  

- Invited talk: K. Brassat, A. Keller, G. Grundmeier, W. Bremser, O. Strube, J. K. N. Lindner, Bioinspired material design by hierarchical self-assembly on prepatterned surfaces, EMRS Spring Meeting 2017, Strasbourg, France, 22.-26.05.2017

- K. Brassat, A. Keller, G. Grundmeier, W. Bremser, O. Strube, J. K. N. Lindner, Tailored antidot patterns created by nanosphere lithography for bioapplications, EMRS Spring Meeting 2017, Strasbourg, France, 22.-26.05.2017

- Invited talk: K. Brassat, J. K. N. Lindner, Hierarchical self-assembly by colloidal and block copolymer lithography, EMN Supramolecular Materials Meeting 2016, Berlin, Germany, 16.-20.08.2016    

- K. Brassat, D. Kool, J. K. N. Lindner, Hierarchically ordered nanopore structures formed by combined nanosphere and block copolymer lithography, EMRS Fall Meeting 2016, Warsaw, Poland, 19.-22.09.2016  

- K. Brassat, A. Rüdiger, J. Bürger, W. Bremser, O. Strube, J. K. N. Lindner, Enzyme mediated autodeposition of protein particles on nanosphere lithographically nanostructured surfaces, EMRS Fall Meeting 2016, Warsaw, Poland, 19.-22.09.2016

- K. Brassat, J. Bürger, M. Reineke, D. Briese, K. Duschik, M. Schaper, J. K. N. Lindner, Arrangement of perovskitic semiconductor nanoparticles using soft lithography, EMRS Fall Meeting 2016, Warsaw, Poland, 19.-22.09.2016 

- K. Brassat, A. Rüdiger, J. Bürger, W. Bremser, O. Strube, J. K. N. Lindner, Site-selective protein immobilization on regular antidot patterns fabricated by nanosphere lithography, EMRS Fall Meeting 2016, Warsaw, Poland, 19.-22.09.2016 

- R. A. Puglisi, C. Bongiorno, K. Brassat, C. Garozzo, A. La Magna, J. K. N. Lindner,  High-resolution TEM and STEM-EELS studies of colloidal Au nanoparticles self-assembled in nanometric SiO2 nanopore arrays fabricated by block-copolymer lithography, EMRS Fall Meeting 2016, Warsaw, Poland, 19.-22.09.2016 

   - K. Brassat, J. K. N. Lindner,  Sub-20 nm surface patterning by block copolymer lithography, Europhotonics Spring School 2016, Porquerolles, France, 30.03.-01.04.2016

- K. Brassat, Ch. Brodehl, M. Wahle, J. K. N. Lindner, Self-assembled nanogap electrodes in microfluidic channels, GRK Convention 2015, Paderborn, Germany, 24.-25.11.2015

- K. Brassat, Ch. Brodehl, J. K. N. Lindner, Self-assembled nanogap electrodes for the directed assembly of nanoparticles, EMRS Fall Meeting 2015, Warsaw, Poland, 14.-19.09.2015    

- C. Garozzo, K. Brassat, A. LaMagna, R. Puglisi, J. K. N. Lindner, Self-arrangement of colloidal Au Nanoparticles in SiO2-Nanopores fabricated by Block-Copolymer Lithography, EMRS Fall Meeting 2015, Warsaw, Poland, 14.-19.09.2015

-  D. Drude, K. Brassat, Ch. Brodehl, J. K. N. Lindner, Correlation between defect densities in colloidal nanosphere masks and experimental parameters, EMRS Fall Meeting 2015, Warsaw, Poland, 14.-19.09.2015   

- K. Brassat, Ch. Brodehl, M. Wahle, J. K. N. Lindner, Variable-distance nanogap electrodes in a microfluidic channel, GRK Convention 2014, Paderborn, Germany, 8.-9.12.2014

- K. Brassat, J. K. N. Lindner, Self-assembly for the directed self-assembly of smaller objects in a microfluidic channel, MRS Fall Meeting 2014, Boston, Massachusetts,30.11.-05.12.2014

- D. Drude, K. Brassat, Ch. Brodehl, Th. Riedl, J. K. N. Lindner, Numerical analysis of defects in colloidal nanosphere masks, EMRS Fall Meeting 2014, Warsaw, Poland, 15.-19.09.2014

- K. Brassat, Ch. Brodehl, J. Pauly, D. Drude, J. Achtelik, T. Riedl, J. K. N. Lindner, Surface patterning by nanosphere lithography, Workshop Ionenstrahlen und Nanostrukturen 2014, Paderborn, Germany, 20.-22.07.2014

- K. Brassat, C. Brodehl, M. Wahle, J. K. N. Lindner, Tuning the distance between opposing metallic nanotips formed by a template-assisted self-assembly process, MRS Spring Meeting 2014, San Francisco, California, 21.-25.04.2014

- K. Brassat, M. Wahle, J. K. N. Lindner, Template-assisted self-assembly process for the formation of nanogap electrodes, Europhotonics Spring School 2014, Porquerolles, France, 31.03.-03.04.2014

- K. Brassat, J. K. N. Lindner, A template-assisted self-organization process for the formation of a linear arrangement of pairs of metallic tips, MRS Fall Meeting 2013, Boston, Massachusetts,01.-06.12.2013

- K. Brassat, J. Pauly, R. Kemper, M. Strake, C. Brodehl, W. Sievers, T. Riedl, J. K. N. Lindner, Colloidal nano-lithography: state-of-the-art, 46th Biennial Meeting of the Colloid Society, Paderborn, Germany, 23.-25.09.2013

- K. Brassat, J. K. N. Lindner, Selective deposition of nanospheres in trenches on silicon surfaces by self-organisation, Frühjahrstagung DPG 2013, Regensburg, Germany, 10.-15.03.2013

- K. Brassat, F. Assion, U. Hilleringmann, J. K. N. Lindner, Self-organization of nanospheres in trenches on silicon surfaces, EMRS Fall Meeting 2012, Warsaw, Poland, 17.-21.09.2012

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