Nonenzymatic glucose sensor based on CuO microfibers composed of CuO nanoparticles.
作者： Fei Cao , Jian Gong
DOI: 10.1016/J.ACA.2012.02.036
关键词:
摘要: Abstract Fluorine tin oxide (FTO) electrode modified by copper microfibers (CuO-MFs) composed of numerous interconnected CuO nanoparticles (CuO-NPs) for nonenzymatic glucose sensor was prepared electrospinning precursor containing high percentage content nitrate with subsequent calcination. The results scanning electron microscope (SEM) showed the size particles composing CuO-MFs depended on in solution. With increasing nitrate, CuO-NPs would gradually replace large-size to accumulate CuO-MFs, which have potential provide larger surface area and more reaction sites electrocatalytic activity toward glucose. As a sensor, FTO 40 wt.% exhibited sensitivity 2321 μA mM −1 cm −2 low detection limit 2.2 nM (signal/noise ratio (S/N) = 3). Additionally, application as biological samples demonstrated satisfactory results.
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