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Updated: Jul 17, 2026

Silicon Nanowires and Optical Stimulation for Investigations of Intra- and Intercellular Electrical Coupling
Published on: January 28, 2021
Nanoscale engineering of a cellular interface with semiconductor nanoparticle films for photoelectric stimulation of
Todd C Pappas1, W M Shan Wickramanyake, Edward Jan
1Center for Biomedical Engineering, University of Texas Medical Branch, Galveston, Texas 77555-0456, USA.
Abstract:
The remarkable optical and electrical properties of nanostructured materials are considered now as a source for a variety of biomaterials, biosensing, and cell interface applications. In this study, we report the first example of hybrid bionanodevice where absorption of light by thin films of quantum confined semiconductor nanoparticles of HgTe produced by the layer-by-layer assembly stimulate adherent neural cells via a sequence of photochemical and charge-transfer reactions. We also demonstrate an example of nanoscale engineering of the material driven by biological functionalities.

