Passivation of black phosphorus as organic-phase enzyme platform for bisphenol A determination

被引：14

作者：

Wu, Lidong ^{[1
]}

Meng, Qingyi ^{[2
]}

Xu, Zhiyuan ^{[2
]}

Cao, Qiang ^{[1
,3
]}

Xiao, Yushi ^{[1
,3
]}

Liu, Huan ^{[1
]}

Han, Gang ^{[1
]}

Wei, Shuhua ^{[2
]}

机构：

[1] Chinese Acad Fishery Sci, Key Lab Control Qual & Safety Aquat Prod, Beijing 100141, Peoples R China

[2] North China Univ Technol, Coll Informat, Beijing 100043, Peoples R China

[3] Shanghai Ocean Univ, Coll Food Sci & Technol, Shanghai 201306, Peoples R China

来源：

ANALYTICA CHIMICA ACTA | 2020年 / 1095卷

基金：

中国国家自然科学基金;

关键词：

Black phosphorus; Passivation; Tyrosinase; Organic phase biosensor; Interdigital electrode; BIOSENSOR; SOLUBILITY; STABILITY; OXYGEN;

D O I：

10.1016/j.aca.2019.10.030

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Black phosphorus (BP) has a high charge-carrier mobility (similar to 1000 cm(2)V(-1)s(-1)), but the bare BP degrades rapidly in the presence of oxygen and water which limits the application of the BP. In this study, a simple, non-covalent passivation strategy is developed by modifying of the BP with hexamethylendiamine (HA). The functionalized BP exhibits good stability over 4 weeks. The organic phase interdigital electrode which is constructed by stable HA/BP and tyrosinase displays lowest noise signal (0.025 nA) and relatively low detection limit (10 nmol L-1) for bisphenol A. This work provides a new strategy for construction of novel biofuel cell, bioelectronics and biosensors. (C) 2019 Elsevier B.V. All rights reserved.

引用

页码：197 / 203

页数：7

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