Functionalization of Silicon Nanowires with Actomyosin Motor Protein for Bioinspired Nanomechanical Applications

Authors


  • This project is supported by the MEST-AFOSR NBIT program and the KOSEF grant (No. 2009-0079103). S.H. acknowledges the support from the System 2010 grant and the WCO program. H.J.C. acknowledges financial support from the National Research Laboratory program and Pioneer research program for converging technology.

Abstract

original image

Silicon nanowires (Si-NWs) are functionalized with heavy meromyosin (HMM) and dispersed in aqueous solution. HMM-functionalized Si-NWs (see image) support the linear motion of actin filaments over 100-µm-long distances without any confining physical barrier. The ballistic nature of actomyosin motion on functionalized Si-NWs is qualitatively different from their diffusive motion on two-dimensional substrates.

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