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Nanostrukturierung - Nanoanalytik - Photonische Materialien
Prof. Dr. Jörg Lindner

Dr. Katharina Brassat

Contact
Profile
Biography
Publications
Dr. Katharina Brassat

Nanopatterning - Nanoanalysis - Photonic Materials

Postdoc

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

Further workspaces
Research

Effects at soft matter - solid interfaces: Nanoobjects and nanostructures

more information on my homepage and recent news on Twitter @KBrassat

Large-area surface nanopatterning by self-assembly techniques:

  • Block copolymer lithography fundamentals and applications
  • Nanosphere lithography
  • Self-assembled monolayers (SAMs) + soft lithography

Application of nanopatterned surfaces for functional (bio-) interfaces

  • DNA origami arrays
  • Nanostructured protein coatings
  • Ferritin nanoparticle arrays
  • Nanopatterning of Ti-6Al-4V alloy surfaces for improved implant-cell interactions
  • Nanostructured electrodes for electrooptics in liquid crystals

Nanoparticles

  • Perovskite nanocrystals
  • Nobel metal or bio- nanoparticle placement
Teaching

Upcoming teaching (winter term 2019/20)

  • Lecture 'Physics and Technology of Nanomaterials'
  • Current topics in material science seminar
  • Workshop: Giving scientific presentations within 'Current topics' seminar
  • Coordination Lecture series Characterization techniques of solids'

Current teaching (summer 2019)

  • Lab course Experimental Physics D: Free experimentation
  • Workshop: Giving scientific presentations

Bachelor and Master thesis advising (Physics)

Project studies (Chemical engineering studies, Material sciences)

Scholarship of teaching and learning (SOTL)

  • Konzeption und Evaluation eines Workshops 'Wissenschaftliche Vorträge halten' für Physikstudierende
  • Integration of audience response systems (ARS) in academic teaching of international students in materials science

Teilnahme am 'Zertifikatsprogramm Professionelle Lehrkompetenz für die Hochschule' der Stabsstelle Bildungsinnovationen und Hochschuldidaktik

Workshops:

  • Teaching and learning
  • Competence-oriented teaching in lab courses for natural sciences
  • Diversity – Teaching in heterogeneous groups
  • Thesis advising
  • Teaching in higher education as career path and leadership resource
  • Communication – Student advising apart from scheduled meetings
  • Communicating key competences
  • Design and evaluation of written exams
Others

 

  • Award for a best honoured Ph D Thesis of the 'Präsidium der Universität Paderborn' 2018
  • Coorganizer 'Young scientist forum - Frontiers in nanomaterials, nanosystems and interfaces' at the EMRS Fall Meeting 2018 in Warsaw, Poland
  • Panel-interview at 'Best MINT' conference 2019 on study-entry phase of women in STEM
  • Round table discussion Women in Science @ Frühlingsuni 2019
  • Portrait in 'Chancen ergreifen' - Zentrale Gleichstellungsmaßnahmen der Universität Paderborn
  • Academic administration: academic staff representative department executive board physics, central exam committee master program Materials Science, several commissions (evaluation and new professorships)
04/2018 - today

PostDoc, Dept. of Physics, Paderborn University

Materials surface design: Soft matter-surface interactions at the nanoscale

- Self-assembed nanopatterning: Block copolymer + nanosphere lithography

- Directed self-assembly: polymer - surface interactions

- Order and biointerfaces: DNA origamis, protein arrays, bionanoparticle arrays

- Perovskite nanocrystals

- Cell response on nanostructured surfaces

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. K. N. Lindner, Modification of block copolymer lithography masks by O2 plasma treatment: Insights from lift-off experiments, nanopore etching and free membranes, Nanotechnology 30, 225302 (2019), DOI: 10.1088/1361-6528/ab06dd

- 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 10, 10005 (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

- K. Brassat,​ DISSERTATION:Surface nanopatterning by self-assembly techniques: Nanosphere- and block copolymer lithography
Hochschulschriften Universität Paderborn, Dissertation (2018) DOI: 10.17619/UNIPB/1-295

- 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

- K. Brassat, D. Kool, J. K. N. Lindner, Hierarchical nanostructures by controlled block copolymer film thickness modulation on pre-patterned surfaces, DSA Symposium 2019, Milano, Italy, 16.-18.10.2019

- K. Brassat, D. Kool, J. K. N. Lindner, Correlation between morphology and coordination of nanopores created by block copolymer lithography, DSA Symposium 2019, Milano, Italy, 16.-18.10.2019

Invited: K. Brassat, Arrays of biomolecules and -nanoparticles on nanostructured surfaces for functional biointerfaces, ISSIB 2019, Quebec, Canada, 22.-25.07.2019

- M. J. Lüther, K. Brassat, J. K. N. Lindner, Self-assembled nanoparticle arrays on nanostructures surfaces for tailored large-area biointerfaces, EMRS Spring Meeting 2019, Strasbourg, France, 27.-31.05.2019

- A. Stratmann, D. Kool, J. Bürger, K. Brassat, J. K. N. Lindner, Pattern transfer of self-assembled block copolymer nanopores into silicon and silicon dioxide by reactive ion etching, Frühjahrstagung DPG 2019, Regensburg, Germany, 31.3.-05.04.2019

- D. Kool, K. Brassat, J. K. N. Lindner, The real 3D morphology of cylindrical block copolymer nanomasks, Frühjahrstagung DPG 2019, Regensburg, Germany, 31.3.-05.04.2019

- Plenary talk: K. Brassat, T. Riedl, J. K. N. Lindner, Self-assembled surface patterns for controlled nanoparticle placement and improved semiconductor heteroepitaxy, ICPAM 12, Heraklion, Greece, 22.-28.09.2018

- K. Brassat, G. Grundmeier, A. Keller, J. K. N. Lindner, With directed self-arrangement of DNA origami to large-area quantum dot arrays, EMRS Fall Meeting 2018, Warsaw, Poland, 17.-20.09.2018

- K. Brassat, D. Kool, J. K. N. Lindner, Hierarchical nanopore and nanoring arrays by self-assembly techniques, EMRS Fall Meeting 2018, Warsaw, Poland, 17.-20.09.2018

- 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

Head

Prof. Dr. Jörg Lindner

Nanopatterning - Nanoanalysis - Photonic Materials

Lehrstuhlinhaber

Jörg Lindner
Phone:
+49 5251 60-2748
Fax:
+49 5251 60-3247
Office:
A4.226
Web:

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