Fabrication and Morphology Regulation of Nanowire Forests for Transparent Self-Driving Bio-Detection Devices

摘要

In this work, transparent nanowire forests(NWFs) with different morphologies and densities are fabricated using silane coupling agent(SCA) as a promotor and regulator in a plasma repolymerization technique. The NWFs prepared in two-dimensional surface microchannels are with a large surface area and show superhydrophilicity, leading to a strong ability of liquid self-driving and biomolecule capturing. As is demonstrated, when the NWFs are integrated on a transparent substrate for bio-detections, light can be incident from their back sides to stimulate and collect signals without requirement of complex optical path systems. Besides, the NWF-based bio-detection devices have much higher fluorescence intensity than conventional immunochromatographic test strips, implying applications of the transparent self-driving devices in fast and ultra-sensitive bio-detections.