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Highly sensitive AuNSs@AgNR SERS substrates for rapid determination of aromatic amines
Analyst ( IF 3.6 ) Pub Date : 2023-01-12 , DOI: 10.1039/d2an01817a
Qian Zhang 1 , Zhenglin Liu 1 , Hengchang Zhang 1 , Caiqin Han 1 , Ying Wu 1 , Changchun Yan 1 , Ying Liu 1 , Bin Wu 2 , Guohai Yang 3 , Peitong Duan 1, 4
Analyst ( IF 3.6 ) Pub Date : 2023-01-12 , DOI: 10.1039/d2an01817a
Qian Zhang 1 , Zhenglin Liu 1 , Hengchang Zhang 1 , Caiqin Han 1 , Ying Wu 1 , Changchun Yan 1 , Ying Liu 1 , Bin Wu 2 , Guohai Yang 3 , Peitong Duan 1, 4
Affiliation
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The leakage of aromatic amines will pose a great threat to human health and the ecological environment. Therefore, there is an urgent need to achieve rapid and high-sensitivity detection of such substances. In this study, a simple surface-enhanced Raman scattering (SERS) method based on gold nanostars-modified silver nanorods (AuNSs@AgNRs) was established for the detection of benzidine and 4-aminobiphenyl (4-ABP). The enhancement factors of the substrate towards rhodamine 6G (R6G) and crystal violet (CV) were 4.67 × 108 and 1.11 × 108, respectively. Combined with density functional theory (DFT), the AuNSs@AgNR substrate achieved the rapid detection of benzidine and 4-ABP and obtained low detection limits (LODbenzidine = 7.09 × 10−9 M; LOD4-ABP = 1.20 × 10−9 M). Furthermore, the AuNSs@AgNR substrate can realize the high-sensitivity detection of benzidine and 4-ABP in the spiked river water samples within 3 min, which means that the AuNSs@AgNR-based SERS method can be used as a portable platform to realize the on-site rapid detection of environmental pollutants.
中文翻译:
用于快速测定芳香胺的高灵敏度 AuNSs@AgNR SERS 底物
芳香胺的泄漏将对人类健康和生态环境造成极大威胁。因此,迫切需要实现对此类物质的快速、高灵敏度检测。在这项研究中,建立了一种基于金纳米星修饰的银纳米棒 (AuNSs@AgNRs) 的简单表面增强拉曼散射 (SERS) 方法,用于检测联苯胺和 4-氨基联苯 (4-ABP)。底物对罗丹明 6G (R6G) 和结晶紫 (CV) 的增强因子分别为 4.67 × 10 8和 1.11 × 10 8。结合密度泛函理论(DFT),AuNSs@AgNR底物实现了联苯胺和4-ABP的快速检测,并获得了低检测限(LOD联苯胺= 7.09×10 -9男;LOD 4-ABP = 1.20 × 10 -9 M)。此外,AuNSs@AgNR 基底可以在 3 分钟内实现对加标河水样品中联苯胺和 4-ABP 的高灵敏度检测,这意味着基于 AuNSs@AgNR 的 SERS 方法可以作为一个便携式平台来实现环境污染物的现场快速检测。
更新日期:2023-01-12
中文翻译:

用于快速测定芳香胺的高灵敏度 AuNSs@AgNR SERS 底物
芳香胺的泄漏将对人类健康和生态环境造成极大威胁。因此,迫切需要实现对此类物质的快速、高灵敏度检测。在这项研究中,建立了一种基于金纳米星修饰的银纳米棒 (AuNSs@AgNRs) 的简单表面增强拉曼散射 (SERS) 方法,用于检测联苯胺和 4-氨基联苯 (4-ABP)。底物对罗丹明 6G (R6G) 和结晶紫 (CV) 的增强因子分别为 4.67 × 10 8和 1.11 × 10 8。结合密度泛函理论(DFT),AuNSs@AgNR底物实现了联苯胺和4-ABP的快速检测,并获得了低检测限(LOD联苯胺= 7.09×10 -9男;LOD 4-ABP = 1.20 × 10 -9 M)。此外,AuNSs@AgNR 基底可以在 3 分钟内实现对加标河水样品中联苯胺和 4-ABP 的高灵敏度检测,这意味着基于 AuNSs@AgNR 的 SERS 方法可以作为一个便携式平台来实现环境污染物的现场快速检测。
