Low-temperature chemical synthesis of three-dimensional hierarchical Ni(OH)2-coated ni microflowers for high-performance enzyme-free glucose sensor

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Title:	Low-temperature chemical synthesis of three-dimensional hierarchical Ni(OH)2-coated ni microflowers for high-performance enzyme-free glucose sensor
Authors:	洪緯璿;Manikandan, Arumugam;Veeramani, Vediyappan;Chen, Shen-Ming;Madhu, Rajesh;Lee, Ling;Medina, Henry;Chen, Chia-Wei;Hung, Wei Hsuan;Wang, Zhiming M;Shen, Guozhen;Chueh, Yu-Lun
Contributors:	工學院材料科學與工程研究所
Keywords:	chemical reactions;coatings;copper;detection limit;electrodes;glucose;nickel;oxides;physical chemistry;Raman spectroscopy;sensors (equipment);surface area;temperature;transmission electron microscopy;X-ray photoelectron spectroscopy
Date:	2016-11-17
Issue Date:	2026-04-23 11:38:28 (UTC+8)
Publisher:	American Chemical Society
Abstract:	摘要： Since prevention methods of type-II diabetes and knowledge of prediabetes are lacking, the development of sensitive and accurate glucose sensors with an ultralow detection limit is imperative. In this work, the enzyme-free glucose sensor based on three-dimensional (3D) hierarchical Ni microflowers with a Ni(OH)2 coating layer has been demonstrated in a simple one-step chemical reaction at a low temperature of 80 °C. The as-synthesized materials were characterized by several analytical and spectroscopic techniques. In addition, the thin Ni(OH)2 layer formed at the surface of the Ni microflower was evidenced by Raman, HRTEM, and XPS, which is the key factor to achieve highly sensitive enzyme-free glucose sensors based on low-cost materials such as copper, nickel, and their oxide and hydroxide. Moreover, our modified electrode exhibits an outstanding detection limit as low as 2.4 nM with an ultrahigh sensitivity of 2392 μA mM–1 cm–2, which is attributed to not only the increased surface area due to the controlled formation of spikes but also the contribution of the Ni(OH)2 coating layer. 其他題名： J. Phys. Chem. C 出版者： American Chemical Society 出版日期： 2016-11-17 出處： Journal of physical chemistry. C, 2016-11, Vol.120 (45), p.25752-25759 資源來源： American Chemical Society Journals 版權： Copyright © 2016 American Chemical Society 識別號： ISSN: 1932-7447 識別號： ISSN: 1932-7455 識別號： EISSN: 1932-7455 識別號： DOI: 10.1021/acs.jpcc.6b07113
Appears in Collections:	[Institute of Materials Science and Engineering] journal & Dissertation

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