Affordable Access

Access to the full text

Mono-patchy zwitterionic microcolloids as building blocks for pH-controlled self-assembly

Authors
  • Mehr, Fatemeh Naderi1
  • Grigoriev, Dmitry
  • Puretskiy, Nikolay
  • Böker, Alexander1
  • 1 Chair of Polymer Materials and Polymer Technologies , University Potsdam , D-14476 Potsdam-Golm , Germany
Type
Published Article
Journal
Soft Matter
Publisher
The Royal Society of Chemistry
Publication Date
Feb 14, 2019
Volume
15
Issue
11
Pages
2430–2438
Identifiers
DOI: 10.1039/c8sm02151a
PMID: 30788469
PMCID: PMC6430096
Source
PubMed Central
License
Green

Abstract

A directional molecular interaction between microcolloids can be achieved through pre-defined sites on their surface, “patches”, which might make them follow each other in a controlled way and assemble into target structures of more complexity. In this article, we report the successful generation and characterization of mono-patchy melamine–formaldehyde microparticles with oppositely charged patches made of poly(methyl vinyl ether- alt -maleic acid) or polyethyleneimine via microcontact printing. The study of their self-aggregation behavior in solution shows that by change of pH, particle dimers are formed via attractive electrostatic force between the patchy and non-patchy surface of the particles, which reaches its optimum at a specific pH.

Report this publication

Statistics

Seen <100 times