Au/Ag composite-based SERS nanoprobe of Cr3+

被引：10

作者：

Cheng, Wendai ^{[1
]}

Tang, Ping ^{[1
,2
]}

He, Xuanmeng ^{[1
]}

Xing, Xinyue ^{[1
]}

Liu, Shengde ^{[1
]}

Zhang, Feng ^{[1
]}

Lu, Xiaoxu ^{[1
]}

Zhong, Liyun ^{[2
]}

机构：

[1] South China Normal Univ, Guangdong Prov Key Lab Nanophoton Funct Mat & Dev, Guangzhou 510006, Peoples R China

[2] Guangdong Univ Technol, Guangdong Prov Key Lab Photon Informat Technol, Guangzhou 510006, Peoples R China

来源：

ANALYTICAL AND BIOANALYTICAL CHEMISTRY | 2021年 / 413卷 / 11期

基金：

中国国家自然科学基金;

关键词：

Surface-enhanced Raman scattering (SERS); Au/Ag composite nanoprobes; nanoprobe; Cr3+ content; COLORIMETRIC DETECTION; GOLD NANOPARTICLES; CHROMIUM(III); TRANSFERRIN; TRANSPORT; BINDING; SENSOR; ION;

D O I：

10.1007/s00216-021-03228-4

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Quantitative characterization of Cr3+, an important element revealing human metabolism and biological environmental variation, is still difficult to achieve by conventional biochemical methods due to the lack of high-sensitivity, real-time techniques with rapid response detection. Using surface-enhanced Raman scattering (SERS), we construct an Au/Ag composite-based SERS nanoprobe for the quantitative characterization of Cr3+ content in solution, in which DL-mercaptosuccinic acid (DL-MSA) is employed for Raman signal enhancement, and 4-mercaptobenzoic acid (4-MBA) is chosen as the Raman reporter. The achieved result demonstrates obvious advantages of the synthesized Au/Ag composite-based SERS nanoprobe in sensitivity and response speed. Importantly, this Au/Ag composite-based SERS nanoprobe might provide a new strategy for dynamic monitoring of Cr3+ content in human metabolism.

引用

页码：2951 / 2960

页数：10

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