Facile Synthesis of β-Lactoglobulin-Functionalized Reduced Graphene Oxide and Trimetallic PtAuPd Nanocomposite for Electrochemical Sensing

被引：12

作者：

Han, Bingkai ^{[1
]}

Pan, Meixin ^{[1
]}

Zhou, Jiexin ^{[1
]}

Wang, Yingying ^{[1
]}

Wang, Zihua ^{[1
]}

Jiao, Jun ^{[1
]}

Zhang, Cong ^{[2
]}

Chen, Qiang ^{[1
]}

机构：

[1] Nankai Univ, Coll Life Sci, Key Lab Bioact Mat, Minist Educ, Weijin Rd 94, Tianjin 300071, Peoples R China

[2] Hebei Univ Sci & Technol, Sch Sci, Dept Chem, Shijiazhuang 050018, Hebei, Peoples R China

来源：

NANOMATERIALS | 2018年 / 8卷 / 09期

关键词：

graphene; beta-lactoglobulin; PtAuPd alloy; electrochemical sensing; glucose sensor; MOLECULAR-DYNAMICS SIMULATION; GLUCOSE BIOSENSOR; GOLD NANOPARTICLES; URIC-ACID; CARBON NANOTUBES; ALLOY CATALYSTS; PERFORMANCE; CHEMILUMINESCENCE; ADSORPTION; DEPOSITION;

D O I：

10.3390/nano8090724

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The use of graphene has leapt forward the materials field and the functional modification of graphene has not stopped. In this work, beta-lactoglobulin (BLG) was used to functionalize reduced graphene oxide (RGO) based on its amphiphilic properties. Also, trimetallic PtAuPd nanoparticles were reduced to the surface of BLG-functionalized RGO and formed BLG-PtAuPd-RGO nanocomposite using facile synthesis. Transmission electron microscopy, energy-dispersive X-ray spectroscopy and Fourier transform infrared spectra were used to characterize the nanocomposite. Electrocatalytic analysis was evaluated through cyclic voltammetry and chronoamperometry methods. We developed a glucose sensor by fabricating GOD-BLG-PtAuPd-RGO/glassy carbon (GC) electrode. It presented a remarkable sensitivity of 63.29 mu A mM(-1) cm(-2) (4.43 mu A mM(-1)), a wider linear range from 0.005 to 9 mM and a lower detection limit of 0.13 mu M (S/N = 3). Additionally, the glucose sensor exhibited excellent testing capability in human serum samples.

引用

页数：12

共 45 条

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