Au-Ag Bimetallic Nanoparticles for Surface-Enhanced Raman Scattering (SERS) Detection of Food Contaminants: A Review
Food contaminants, including harmful microbes, pesticide residues, heavy metals and illegal additives, pose significant public health risks. While traditional detection methods are effective, they are often slow and require complex equipment, which limits their application in real-time monitoring an...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-06-01
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| Series: | Foods |
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| Online Access: | https://www.mdpi.com/2304-8158/14/12/2109 |
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| author | Pengpeng Yu Chaoping Shen Xifeng Yin Junhui Cheng Chao Liu Ziting Yu |
| author_facet | Pengpeng Yu Chaoping Shen Xifeng Yin Junhui Cheng Chao Liu Ziting Yu |
| author_sort | Pengpeng Yu |
| collection | DOAJ |
| description | Food contaminants, including harmful microbes, pesticide residues, heavy metals and illegal additives, pose significant public health risks. While traditional detection methods are effective, they are often slow and require complex equipment, which limits their application in real-time monitoring and rapid response. Surface-enhanced Raman scattering (SERS) technology has gained widespread use in related research due to its hypersensitivity, non-destructibility and molecular fingerprinting capabilities. In recent years, Au-Ag bimetallic nanoparticles (Au-Ag BNPs) have emerged as novel SERS substrates, accelerating advancements in SERS detection technology. Au-Ag BNPs can be classified into Au-Ag alloys, Au-Ag core–shells and Au-Ag aggregates, among which the Au-Ag core–shell structure is more widely applied. This review discusses the types, synthesis methods and practical applications of Au-Ag BNPs in food contaminants. The study aims to provide valuable insights into the development of new Au-Ag BNPs and their effective use in detecting common food contaminants. Additionally, this paper explores the challenges and future prospects of SERS technology based on Au-Ag BNPs for pollutant detection, including the development of functional integrated substrates, advancements in intelligent algorithms and the creation of portable on-site detection platforms. These innovations are designed to streamline the detection process and offer guidance in selecting optimal sensing methods for the on-site detection of specific pollutants. |
| format | Article |
| id | doaj-art-21905d0d412d46a4951a2d8fa6abd447 |
| institution | Kabale University |
| issn | 2304-8158 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Foods |
| spelling | doaj-art-21905d0d412d46a4951a2d8fa6abd4472025-08-20T03:27:14ZengMDPI AGFoods2304-81582025-06-011412210910.3390/foods14122109Au-Ag Bimetallic Nanoparticles for Surface-Enhanced Raman Scattering (SERS) Detection of Food Contaminants: A ReviewPengpeng Yu0Chaoping Shen1Xifeng Yin2Junhui Cheng3Chao Liu4Ziting Yu5School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, ChinaZhenjiang Agricultural Products Quality Inspection and Testing Center, Zhenjiang 212009, ChinaSchool of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, ChinaJurong Agricultural Product Quality and Safety Monitoring Center, Zhenjiang 212400, ChinaJurong Agricultural Product Quality and Safety Monitoring Center, Zhenjiang 212400, ChinaFood contaminants, including harmful microbes, pesticide residues, heavy metals and illegal additives, pose significant public health risks. While traditional detection methods are effective, they are often slow and require complex equipment, which limits their application in real-time monitoring and rapid response. Surface-enhanced Raman scattering (SERS) technology has gained widespread use in related research due to its hypersensitivity, non-destructibility and molecular fingerprinting capabilities. In recent years, Au-Ag bimetallic nanoparticles (Au-Ag BNPs) have emerged as novel SERS substrates, accelerating advancements in SERS detection technology. Au-Ag BNPs can be classified into Au-Ag alloys, Au-Ag core–shells and Au-Ag aggregates, among which the Au-Ag core–shell structure is more widely applied. This review discusses the types, synthesis methods and practical applications of Au-Ag BNPs in food contaminants. The study aims to provide valuable insights into the development of new Au-Ag BNPs and their effective use in detecting common food contaminants. Additionally, this paper explores the challenges and future prospects of SERS technology based on Au-Ag BNPs for pollutant detection, including the development of functional integrated substrates, advancements in intelligent algorithms and the creation of portable on-site detection platforms. These innovations are designed to streamline the detection process and offer guidance in selecting optimal sensing methods for the on-site detection of specific pollutants.https://www.mdpi.com/2304-8158/14/12/2109Surface-enhanced Raman scatteringfood contaminantsAu-Ag bimetallic nanoparticlessensor |
| spellingShingle | Pengpeng Yu Chaoping Shen Xifeng Yin Junhui Cheng Chao Liu Ziting Yu Au-Ag Bimetallic Nanoparticles for Surface-Enhanced Raman Scattering (SERS) Detection of Food Contaminants: A Review Foods Surface-enhanced Raman scattering food contaminants Au-Ag bimetallic nanoparticles sensor |
| title | Au-Ag Bimetallic Nanoparticles for Surface-Enhanced Raman Scattering (SERS) Detection of Food Contaminants: A Review |
| title_full | Au-Ag Bimetallic Nanoparticles for Surface-Enhanced Raman Scattering (SERS) Detection of Food Contaminants: A Review |
| title_fullStr | Au-Ag Bimetallic Nanoparticles for Surface-Enhanced Raman Scattering (SERS) Detection of Food Contaminants: A Review |
| title_full_unstemmed | Au-Ag Bimetallic Nanoparticles for Surface-Enhanced Raman Scattering (SERS) Detection of Food Contaminants: A Review |
| title_short | Au-Ag Bimetallic Nanoparticles for Surface-Enhanced Raman Scattering (SERS) Detection of Food Contaminants: A Review |
| title_sort | au ag bimetallic nanoparticles for surface enhanced raman scattering sers detection of food contaminants a review |
| topic | Surface-enhanced Raman scattering food contaminants Au-Ag bimetallic nanoparticles sensor |
| url | https://www.mdpi.com/2304-8158/14/12/2109 |
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