Advanced colloid lithography for surface functionalization - Expanding the current state of the art

Elena Miliutina, Anastasia Olshtrem, Vasilii Burtsev, Olga Guselnikova, Vaclav Švorčík, Oleksiy Lyutakov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Creation of hydrophobic and hydrophilic surfaces with the spatially selective distribution of grafted organic moieties have great potential in the field of medicine and avionics. The one of more scalable approaches for spatially selective surface modification is based on colloid lithography, which allows large throughput for the subsequent surface grafting and realization of periodic chemical pattern. In this work, we demonstrated the spatially-selective surface grafting by ADT salt with hydrophobic -C8F17 or hydrophilic -COOH groups using following procedure: (i) deposition of PS colloid suspension on substrate; (ii) electrochemical modification of surface with diazonium salt; (iii) removing of PS mask; (iv) second electrochemical modification with diazonium salt. The surface modification through the mask was controlled by PS size, that allowed tuning the area, covered in the first stage of grafting. The modified surface morphology and chemistry was measured by IR spectroscopy and AFM microscopy. Proposed approach allows to effectively decorate surface with different chemical groups in an accurate and precise manner, with additional feature of their mutual “periodic” arrangement.

Original languageEnglish
Title of host publicationNANOCON 2019 - Conference Proceedings, 11th International Conference on Nanomaterials - Research and Application
PublisherTANGER Ltd.
Pages586-590
Number of pages5
ISBN (Electronic)9788087294956
DOIs
Publication statusPublished - 2020
Event11th International Conference on Nanomaterials - Research and Application, NANOCON 2019 - Brno, Czech Republic
Duration: 16 Oct 201918 Oct 2019

Publication series

NameNANOCON Conference Proceedings - International Conference on Nanomaterials
Volume2020-October
ISSN (Print)2694-930X

Conference

Conference11th International Conference on Nanomaterials - Research and Application, NANOCON 2019
CountryCzech Republic
CityBrno
Period16.10.1918.10.19

Keywords

  • 2D arrays of colloidal spheres formation
  • Colloid lithography
  • Double modification
  • Periodical structures
  • Polystyrene microspheres

ASJC Scopus subject areas

  • Biotechnology
  • Electrical and Electronic Engineering
  • Ceramics and Composites
  • Electronic, Optical and Magnetic Materials

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