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Synthesis of a β-cyclodextrin-modified Ag film by the galvanic displacement on copper foil for SERS detection of PCBs.
J Colloid Interface Sci. 2012 Jan 01; 365(1):122-6.JC

Abstract

A mono-6-thio-β-cyclodextrin-modified silver film was synthesized via galvanic displacement on copper foil. The prepared silver films could enrich non-polar polychlorinated biphenyls (PCBs) molecules from hydrophilic phase using thiolate β-cyclodextrins (SH-β-CDs) as receptors. The components of as-prepared Ag-coated-Cu (Ag-Cu) film were confirmed by powder X-ray diffraction (XRD). Both surface-enhanced Raman spectroscopy (SERS) and energy dispersive X-ray spectroscopy (EDS) measurements gave strong evidences that the thiolated β-cyclodextrins (SH-β-CDs) had been immobilized on the surface of silver film. Compared to the substrates prepared in the absence of SH-β-CD, the surface morphology of the CD-modified Ag films was obviously changed. The interfacial enrichment and the capability of substrates to form inclusion complexes with PCBs molecules were tested by using PCB-15 (4,4'-dichlorobiphenyl) as the probe molecules via SERS technique. The measured SERS spectra could distinguish the PCB-15 molecules at micro-molar level according to the most intense CCC bending in-plane mode of PCBs. The enhancement factor (EF) of the SERS substrates for PCB-15 was 1.2×10(5), which was comparable with a number of previous reports.

Authors+Show Affiliations

Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Department of Chemistry, Shandong University, Jinan 250100, Shandong, PR China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

21968400

Citation

Yuan, Jingpeng, et al. "Synthesis of a Β-cyclodextrin-modified Ag Film By the Galvanic Displacement On Copper Foil for SERS Detection of PCBs." Journal of Colloid and Interface Science, vol. 365, no. 1, 2012, pp. 122-6.
Yuan J, Lai Y, Duan J, et al. Synthesis of a β-cyclodextrin-modified Ag film by the galvanic displacement on copper foil for SERS detection of PCBs. J Colloid Interface Sci. 2012;365(1):122-6.
Yuan, J., Lai, Y., Duan, J., Zhao, Q., & Zhan, J. (2012). Synthesis of a β-cyclodextrin-modified Ag film by the galvanic displacement on copper foil for SERS detection of PCBs. Journal of Colloid and Interface Science, 365(1), 122-6. https://doi.org/10.1016/j.jcis.2011.08.075
Yuan J, et al. Synthesis of a Β-cyclodextrin-modified Ag Film By the Galvanic Displacement On Copper Foil for SERS Detection of PCBs. J Colloid Interface Sci. 2012 Jan 1;365(1):122-6. PubMed PMID: 21968400.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Synthesis of a β-cyclodextrin-modified Ag film by the galvanic displacement on copper foil for SERS detection of PCBs. AU - Yuan,Jingpeng, AU - Lai,Yongchao, AU - Duan,Junling, AU - Zhao,Quanqin, AU - Zhan,Jinhua, Y1 - 2011/09/14/ PY - 2011/07/06/received PY - 2011/08/27/revised PY - 2011/08/28/accepted PY - 2011/10/5/entrez PY - 2011/10/5/pubmed PY - 2012/2/15/medline SP - 122 EP - 6 JF - Journal of colloid and interface science JO - J Colloid Interface Sci VL - 365 IS - 1 N2 - A mono-6-thio-β-cyclodextrin-modified silver film was synthesized via galvanic displacement on copper foil. The prepared silver films could enrich non-polar polychlorinated biphenyls (PCBs) molecules from hydrophilic phase using thiolate β-cyclodextrins (SH-β-CDs) as receptors. The components of as-prepared Ag-coated-Cu (Ag-Cu) film were confirmed by powder X-ray diffraction (XRD). Both surface-enhanced Raman spectroscopy (SERS) and energy dispersive X-ray spectroscopy (EDS) measurements gave strong evidences that the thiolated β-cyclodextrins (SH-β-CDs) had been immobilized on the surface of silver film. Compared to the substrates prepared in the absence of SH-β-CD, the surface morphology of the CD-modified Ag films was obviously changed. The interfacial enrichment and the capability of substrates to form inclusion complexes with PCBs molecules were tested by using PCB-15 (4,4'-dichlorobiphenyl) as the probe molecules via SERS technique. The measured SERS spectra could distinguish the PCB-15 molecules at micro-molar level according to the most intense CCC bending in-plane mode of PCBs. The enhancement factor (EF) of the SERS substrates for PCB-15 was 1.2×10(5), which was comparable with a number of previous reports. SN - 1095-7103 UR - https://www.unboundmedicine.com/medline/citation/21968400/Synthesis_of_a_β_cyclodextrin_modified_Ag_film_by_the_galvanic_displacement_on_copper_foil_for_SERS_detection_of_PCBs_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0021-9797(11)01105-2 DB - PRIME DP - Unbound Medicine ER -