TY  - JOUR
A1  - Mehr, Fatemeh Naderi
A1  - Grigoriev, Dmitry
A1  - Puretskiy, Nikolay
A1  - Böker, Alexander
T1  - Mono-patchy zwitterionic microcolloids as building blocks for pH-controlled self-assembly
T2  - Soft matter
N2  - 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.
Y1  - 2019
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/49924
SN  - 1744-683X
SN  - 1744-6848
VL  - 15
IS  - 11
SP  - 2430
EP  - 2438
PB  - Royal Society of Chemistry
CY  - Cambridge
ER  -