journal article·2024-10-07

Low-Temperature Substrate: Detection of Viruses on Cold Chain Food Packaging Based on Surface-Enhanced Raman Spectroscopy

Yanli Wu, Xinyu Chen, Ling Liu, Suang Jiang, Ling Xia, Dan Li, Guangrun Wu, Zhongqi Sun, Zhe Zhang, Yang Li

ACS Materials Letters· Volume 6· Issue 10
Publisher page

Abstract

Viruses are mostly resistant to low temperatures and can survive for a long time and maintain their infectivity at temperatures below 0 °C. Therefore, realizing virus detection at low temperatures is a great challenge. Subzero temperatures change the state of the water-soluble substrate, increasing the difficulty of detection. In this work, we designed a novel enhancement substrate to obtain SERS signals of biomolecules stably at low temperatures. For the first time, methanol solvent was introduced into the aqueous system of silver nanoparticles modified with iodide ions. The introduction of methanol solvent not only serves as an anticoagulant to keep the system stable at low temperatures, but it can also improve nanoparticles and form a “hot spot”, which is more suitable for virus detection. This low-toxicity, rapid, and highly sensitive in situ detection technique lays the foundation for the development of SERS technology in the field of food and life sciences.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Poxvirus research and outbreaks · Bacillus and Francisella bacterial research · Identification and Quantification in Food

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Research Center for Innovative Technology of Pharmaceutical Analysis, College of Pharmacy, Harbin Medical University, Heilongjiang 150081, PR China

Department of Organic Chemistry, College of Pharmacy, Harbin Medical University, Harbin 150081, Heilongjiang, China

State Key Laboratory of High-Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, People’s Republic of China

Research Unit of Health Sciences and Technology (HST), Faculty of Medicine University of Oulu, 2125B, Aapistie 5A, 90220 Oulu, Finland

National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), College of Pharmacy, Harbin Medical University, Heilongjiang 150081, PR China

Funding

China Postdoctoral Science Foundation · Natural Science Foundation of Heilongjiang Province · National Natural Science Foundation of China · Introduce high-level talent incentive project · Heilongjiang Province

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