Nanoparticle chain formation on functional surfaces using insulin fibrils as a structure directing agent

作者：Hsieh, Chiung Wen; Hsieh, Shuchen^*

来源：Journal of Materials Chemistry, 2011, 21(42): 16900-16904.

DOI：10.1039/c1jm10136f

Nanoparticles exhibit unique size-dependent physical and chemical properties which may be further modified by controlling their spatial arrangement. For example, when metallic nanoparticles are placed sufficiently close together, near-field coupling between surface plasmons occurs which can lead to enhancement. In this report, insulin fibrils were used as a structure directing agent to attach Au nanoparticles to wafer-grade polished glass and ITO substrates, and to attach Au and CdSe nanoparticles to PDMS substrates. The nanoparticles adhered preferentially to the insulin fibrils via electrostatic interactions. This method provides a general approach for aligning nanoparticles into chains on functional surfaces for applications such as optical waveguides.

• 出版日期2011
• 单位中山大学