Regensburg 2013 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 16: Interfaces and Thin Films II (joint session with DECHEMA and VDI)

CPP 16.1: Hauptvortrag

Dienstag, 12. März 2013, 09:30–10:00, H40

Functional nanolayers made from colloidal building blocks — •Andreas Fery — University Bayreuth, Physical Chemistry II and Bayreuth Center for Colloids and Interfaces, Universitaetsstr. 30, 95444 Bayreuth, Germany

Colloidal particles are attractive building blocks for forming functional nanolayers. Already at the single particle level, even multiple functionalities like optical functionality or stimulus sensitivity can be established. These functionalities can be easily integrated into nanolayers, as particle immobilization typically does not require sophisticated specific coupling chemistry, but in many cases, physisorption relying on unspecific interactions is sufficient. Finally, multi-layer formation and/or lateral patterning can unlock novel properties, which arise from synergistic functional, as well as local or long range coupling effects.

We illustrate this concept with examples from the area of stimulus responsive layers using microgel- or block-copolymer building blocks. The stimulus sensitivity of those can be used for controlling the interaction of cells with surfaces, allowing for novel concepts in switchable cell culture surfaces or anti-fouling. As well, we discuss how non lithographic patterning of metallic colloidal particles can be used for controlling plasmonic coupling effects, leading to applications in sensorics and plasmonics.