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Zhang Z, Jiang S, Wang X, Dong T, Wang Y, Li D, Gao X, Qu Z, Li Y. A novel enhanced substrate for label-free detection of SARS-CoV-2 based on surface-enhanced Raman scattering. SENSORS AND ACTUATORS. B, CHEMICAL 2022; 359:131568. [PMID: 35185297 PMCID: PMC8839800 DOI: 10.1016/j.snb.2022.131568] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 01/20/2022] [Accepted: 02/10/2022] [Indexed: 05/08/2023]
Abstract
Accurate and sensitive detection of SARS-CoV-2 is an effective strategy for preventing the COVID-19 pandemic in the current absence of specific drug therapy. This study presents a novel enhanced substrate for label-free detection of respiratory viruses using surface-enhanced Raman Scattering. Sodium borohydride reduces silver ions to clustered silver nanoparticles to eliminate the disorganized peak signal of the traditional citrate reducing agent. Meanwhile, the study obtained the fingerprints and concentration-dependent curves of many respiratory viruses, including SARS-CoV-2, human adenovirus type 7, and H1N1 virus, with good linear relationships. The three viruses were also identified in serum and saliva within two minutes, combined with linear discriminant diagnostic analysis. Therefore, establishing this enhanced substrate is greatly valuable for the global response to the COVID-19 pandemic.
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Affiliation(s)
- Zhe Zhang
- College of Pharmacy, Harbin Medical University, Baojian Road No. 157, Harbin, Heilongjiang Province 150081, China
- College of Public Health, Harbin Medical University, Baojian Road No. 157, Harbin, Heilongjiang Province 150081, China
- Research Center for Innovative Technology of Pharmaceutical Analysis, Baojian Road No. 157, Harbin, Heilongjiang Province, 150081, China
| | - Shen Jiang
- College of Pharmacy, Harbin Medical University, Baojian Road No. 157, Harbin, Heilongjiang Province 150081, China
- Research Center for Innovative Technology of Pharmaceutical Analysis, Baojian Road No. 157, Harbin, Heilongjiang Province, 150081, China
| | - Xiaotong Wang
- College of Pharmacy, Harbin Medical University, Baojian Road No. 157, Harbin, Heilongjiang Province 150081, China
- Research Center for Innovative Technology of Pharmaceutical Analysis, Baojian Road No. 157, Harbin, Heilongjiang Province, 150081, China
| | - Tuo Dong
- College of Public Health, Harbin Medical University, Baojian Road No. 157, Harbin, Heilongjiang Province 150081, China
| | - Yunpeng Wang
- College of Pharmacy, Harbin Medical University, Baojian Road No. 157, Harbin, Heilongjiang Province 150081, China
- Research Center for Innovative Technology of Pharmaceutical Analysis, Baojian Road No. 157, Harbin, Heilongjiang Province, 150081, China
| | - Dan Li
- Institute of Physics, Guizhou University, South Section of Huaxi Avenue No. 2708, Guiyang, Guizhou Province, 550025, China
| | - Xin Gao
- Institute of Physics, Guizhou University, South Section of Huaxi Avenue No. 2708, Guiyang, Guizhou Province, 550025, China
| | - Zhangyi Qu
- College of Public Health, Harbin Medical University, Baojian Road No. 157, Harbin, Heilongjiang Province 150081, China
| | - Yang Li
- College of Pharmacy, Harbin Medical University, Baojian Road No. 157, Harbin, Heilongjiang Province 150081, China
- Research Center for Innovative Technology of Pharmaceutical Analysis, Baojian Road No. 157, Harbin, Heilongjiang Province, 150081, China
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