Covalent organic framework-hybridized Ag nanoparticles as SERS substrate for highly sensitive detection of DNA bases

被引：3

作者：

Fu, Cuicui ^{[1
]}

Jiang, Sihan ^{[1
]}

Zhuo, Siyu ^{[1
]}

Qiu, Jiaxin ^{[1
]}

Luo, Hualu ^{[1
]}

Wu, Yan ^{[1
]}

Li, Yangyang ^{[1
]}

Jung, Young Mee ^{[2
]}

机构：

[1] Yangtze Normal Univ, Coll Chem & Chem Engn, Chongqing Key Lab New Chem Mat Shale Gas, Fuling, Chongqing 408100, Peoples R China

[2] Kangwon Natl Univ, Inst Mol Sci & Fus Technol, Dept Chem, Chunchon 24341, South Korea

来源：

ANALYTICAL AND BIOANALYTICAL CHEMISTRY | 2024年 / 416卷 / 24期

基金：

新加坡国家研究基金会;

关键词：

SERS; Covalent organic framework; Silver nanoparticles; Nanocomposite; Adenine; SURFACE-ENHANCED RAMAN; SILVER; ADSORPTION; STORAGE;

D O I：

10.1007/s00216-024-05460-0

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Currently, research in the development of high-performance sensing platforms has increased to fulfill the needs of analysis and detection. In this study, we developed a novel type of surface-enhanced Raman scattering (SERS) chip composed of a covalent organic framework (COF)-silver nanoparticles (AgNPs) nanocomposite, and this nanocomposite was fabricated by a one-step method of ultrasonically mixing the obtained COF and AgNPs. The fabricated chip exhibited high sensitivity and repeatable SERS effects. Practical application results showed that the chip was highly sensitive and reliable and capable of detecting DNA bases (adenine) to fit an equation in the range from 0.01 pM to 1 nM, with an R-square of 0.97253 and a detection limit of similar to 0.026 pM (signal-to-noise ratio (S/N) = 3). Therefore, the proposed SERS system has potential applications in biological assays.

引用

收藏

页码：5295 / 5302

页数：8

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