Heterogeneous Silicone Nanorods with Region-Specific Functionality.

ACS Appl Mater Interfaces

Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland.

Published: December 2024

AI Article Synopsis

  • Researchers are exploring ways to create specialized surfaces by modifying tiny structures, which is challenging due to their small size and uniform chemical properties.
  • This study introduces a method for developing hybrid silicone nanorods (MCH-SNRs) that have areas designed for targeted chemical reactions, allowing for selective modifications.
  • The process involves controlling the growth of different sections of the nanorods using various materials, and the effectiveness of this targeted modification is demonstrated using confocal microscopy to observe changes in wettability.

Article Abstract

Region-selective chemical modification of nano- and microstructures can unlock a world of novel functional surfaces. However, this small scale makes region selectivity challenging, especially on homogeneous and chemically inert synthetic structures. Here, we report the one-step dynamic synthesis of heterogeneous multicomponent hybrid silicone nanorods (MCH-SNRs). These nanorods bear specific modifiable regions that can be assigned to different positions on-demand and selectively functionalized via a photoinitiated, radical-based thiol-ene click reaction. The distribution of different constituent components with desired properties hinges on the independent growth of the individual segment of the bamboo-shaped structure, which can be tailored by using different precursors under specific reaction conditions. Region selectivity of the functionalization is validated by exploiting wetting transitions along bamboo segments, visualized by confocal microscopy.

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Source
http://dx.doi.org/10.1021/acsami.4c15434DOI Listing

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