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Highly sensitive SERS detection of As3+ ions in aqueous media using glutathione functionalized silver nanoparticles.
ACS Appl Mater Interfaces. 2011 Oct; 3(10):3936-41.AA

Abstract

A highly sensitive surface-enhanced Raman scattering (SERS) platform for the selective trace analysis of As(3+) ions was reported based on glutathione (GSH)/4-mercaptopyridine (4-MPY)-modified silver nanoparticles (AgNPs). Here, GSH conjugated on the surface of AgNPs for specifical binding with As(3+) ions in aqueous solution through As-O linkage and 4-MPY was used as a Raman reporter. When As(3+) ions were added to the system, the binding of As(3+) with GSH resulted in the aggregation of AgNPs, and excellent Raman signal of 4-MPY reporters was obtained which can reflect the concentration of As(3+) indirectly. Under optimal assay conditions, the limit of detection (LOD) was estimated to be as low as 0.76 ppb, which is lower than the WHO defined limit (10 ppb), and an excellent linear range of 4-300 ppb was obtained. The practical application had been carried out for determination of As(3+) in real water samples.

Authors+Show Affiliations

Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Evaluation Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

21916441

Citation

Li, Jinglian, et al. "Highly Sensitive SERS Detection of As3+ Ions in Aqueous Media Using Glutathione Functionalized Silver Nanoparticles." ACS Applied Materials & Interfaces, vol. 3, no. 10, 2011, pp. 3936-41.
Li J, Chen L, Lou T, et al. Highly sensitive SERS detection of As3+ ions in aqueous media using glutathione functionalized silver nanoparticles. ACS Appl Mater Interfaces. 2011;3(10):3936-41.
Li, J., Chen, L., Lou, T., & Wang, Y. (2011). Highly sensitive SERS detection of As3+ ions in aqueous media using glutathione functionalized silver nanoparticles. ACS Applied Materials & Interfaces, 3(10), 3936-41. https://doi.org/10.1021/am200810x
Li J, et al. Highly Sensitive SERS Detection of As3+ Ions in Aqueous Media Using Glutathione Functionalized Silver Nanoparticles. ACS Appl Mater Interfaces. 2011;3(10):3936-41. PubMed PMID: 21916441.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Highly sensitive SERS detection of As3+ ions in aqueous media using glutathione functionalized silver nanoparticles. AU - Li,Jinglian, AU - Chen,Lingxin, AU - Lou,Tingting, AU - Wang,Yunqing, Y1 - 2011/09/27/ PY - 2011/9/16/entrez PY - 2011/9/16/pubmed PY - 2012/3/6/medline SP - 3936 EP - 41 JF - ACS applied materials & interfaces JO - ACS Appl Mater Interfaces VL - 3 IS - 10 N2 - A highly sensitive surface-enhanced Raman scattering (SERS) platform for the selective trace analysis of As(3+) ions was reported based on glutathione (GSH)/4-mercaptopyridine (4-MPY)-modified silver nanoparticles (AgNPs). Here, GSH conjugated on the surface of AgNPs for specifical binding with As(3+) ions in aqueous solution through As-O linkage and 4-MPY was used as a Raman reporter. When As(3+) ions were added to the system, the binding of As(3+) with GSH resulted in the aggregation of AgNPs, and excellent Raman signal of 4-MPY reporters was obtained which can reflect the concentration of As(3+) indirectly. Under optimal assay conditions, the limit of detection (LOD) was estimated to be as low as 0.76 ppb, which is lower than the WHO defined limit (10 ppb), and an excellent linear range of 4-300 ppb was obtained. The practical application had been carried out for determination of As(3+) in real water samples. SN - 1944-8252 UR - https://www.unboundmedicine.com/medline/citation/21916441/Highly_sensitive_SERS_detection_of_As3+_ions_in_aqueous_media_using_glutathione_functionalized_silver_nanoparticles_ L2 - https://doi.org/10.1021/am200810x DB - PRIME DP - Unbound Medicine ER -