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. 2016 Sep 12;17(9):1536. doi: 10.3390/ijms17091536

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© 2016 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).

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(a) Cross-sectional scanning electron microscope (SEM) image of a silicon-nanowire (SiNW) array on crystalline silicon (c-Si) substrate; (b) cross-sectional SEM image of SiNWs; (c) transmission electron microscopy (TEM) image of silicon nanoparticles (SiNPs) and inset with electron diffraction pattern of SiNPs; (d) Dynamic light scattering (DLS) size distribution function of SiNPs; (e) Fourier-transform infrared (FTIR) spectrum of SiNPs and inset with digital image of an aqueous suspension with SiNP concentration of 0.25 mg/mL; and (f) viability of MCF-7 breast cancer cells vs. SiNP concentration.

(a) Cross-sectional scanning electron microscope (SEM) image of a silicon-nanowire (SiNW) array on crystalline silicon (c-Si) substrate; (b) cross-sectional SEM image of SiNWs; (c) transmission electron microscopy (TEM) image of silicon nanoparticles (SiNPs) and inset with electron diffraction pattern of SiNPs; (d) Dynamic light scattering (DLS) size distribution function of SiNPs; (e) Fourier-transform infrared (FTIR) spectrum of SiNPs and inset with digital image of an aqueous suspension with SiNP concentration of 0.25 mg/mL; and (f) viability of MCF-7 breast cancer cells vs. SiNP concentration.