Figure 4
From: Coupling of Semiconductor Nanowires with Neurons and Their Interfacial Structure
a SEM image of coupled Si nanowire with neuronal process. b Cross-sectioned image of neuron–nanowire interface showing neuron (N), Si nanowires (Si), gold (Au) and platinum (Pt) films deposited for focused ion beam process. c–e Element mapping of cross-sectional interfaces obtained by jump-ratio method in TEM analysis (c: silicon, d: oxygen, e: carbon). Each mapping shows ~8, ~4, and ~8 nm of interfacial layers, respectively, f High-resolution TEM image of interface showing ~4 nm of SiO2(bright,below) and ~4 nm of PLL (dark,above) layers.Scale bar is 1 μm in a, 200 nm in b–e and 10 nm in f