writer：2) Siyuan Xiang, Qingnan Meng, Kai Zhang, Yue Gu, Wendong Liu, and Bai Yang.
keywords：ZnO， Au nanoparticle， Petal-like nanocomposite， Electrochemistry， Biomolecule determination
source：期刊
specific source：Chem. Res. Chinese Universities
Issue time：2019年

Using dextran as both reductant and stabilizing agent, nanopetals(ZnO-Au NPs) were easily synthesized

and possessed a petal-like morphology. The feature structure and size of such ZnO-Au NPs were adjustable by regu-

lating the amount of chloroauric acid(HAuCl4). Moreover, the electrochemical property of the obtained NPs was

evaluated by being immobilized on the glassy carbon electrode(GCE), which performed both high sensitivity and

stability in dopamine(DA) determinations. Furthermore, the as-prepared ZnO-Au NPs could also detect DA and uric

acid(UA) simultaneously in the mixture without interference, indicating good selectivity and showing promising

potential in biosensing.