One-step exfoliation and functionalization of graphene by hydrophobin for high performance water molecular sensing

被引：16

作者：

Tao, Jin ^{[1
,7
]}

Wang, Yanyan ^{[1
]}

Xiao, Yunjie ^{[3
,4
]}

Yao, Pei ^{[5
]}

Chen, Cheng ^{[2
]}

Zhang, Daihua ^{[1
]}

Pang, Wei ^{[1
]}

Yang, Haitao ^{[2
]}

Sun, Dong ^{[6
]}

Wang, Zefang ^{[2
,3
,4
]}

Liu, Jing ^{[1
]}

机构：

[1] Tianjin Univ, Sch Precis Instruments & Opto Elect Engn, State Key Lab Precis Measurement Technol & Instru, 92 Weijin Rd, Tianjin 300072, Peoples R China

[2] Tianjin Univ, Sch Life Sci, 92 Weijin Rd, Tianjin 300072, Peoples R China

[3] Nankai Univ, Coll Pharm, State Key Lab Med Chem Biol, 94 Weijin Rd, Tianjin 300071, Peoples R China

[4] Tianjin Int joint Acad Biotechnol & Med, 220 Dongting Rd, Tianjin 300457, Peoples R China

[5] Tianjin Univ, Sch Mat Sci & Engn, 92 Weijin Rd, Tianjin 300072, Peoples R China

[6] Peking Univ, Int Ctr Quantum Mat, Sch Phys, 5 Yiheyuan Rd, Beijing 100871, Peoples R China

[7] Chinese Acad Sci, Changchun Inst Optic & Fine Mech & Phys, 3888 Nanhu Rd, Changchun 130033, Peoples R China

来源：

CARBON | 2017年 / 116卷

基金：

美国国家科学基金会;

关键词：

LAYER-BY-LAYER; GRAPHITE OXIDE; SCALABLE PRODUCTION; HUMIDITY SENSORS; SHEETS; NANOSHEETS; NANOCOMPOSITES; NANOPARTICLES; AMPHIPHILE; COMPOSITE;

D O I：

10.1016/j.carbon.2017.02.052

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A novel one-step strategy to exfoliate and functionalize two dimensional layered materials (2DLM) is described to promote the production and performance of the 2DLM for bio-related and molecule adsorption based practical applications. This method applies sonication to the 2DLM dissolved in the aqueous solution of hydrophobin protein, during which process the hydrophobins penetrate into the interlayer and automatically bind onto the surface of 2DLM to peel off the mono-/few-layer from the bulk material. The exfoliated 2DLM is spontaneously wrapped with a dense and ordered hydrophobin monolayer, forming unique bio-nanocomposites with greatly enhanced biocompatibility and molecule adsorption capability. The product exfoliated and functionalized by this method from reduced graphite oxide is successfully applied for an exemplary application of water molecular sensing, which, to the best of our knowledge, is the first time that a protein layer is used as an active sensing layer for water molecules. The device shows exceptional improved performance in harsh environments with complicated background interferents as compared to a bare reduced graphene oxide sensor and a commercial sensor.(C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：695 / 702

页数：8

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