"Green" colorimetric assay for the selective detection of trivalent chromium based on Xanthoceras sorbifolia tannin attached to gold nanoparticles | |
Department | 中科院西北特色植物资源化学重点实验室/甘肃省天然药物重点实验室 |
Ha W(哈伟); Yu J(于京); Wang R(王瑞); Chen J(陈娟); Shi YP(师彦平); Shi YP(师彦平) | |
2014 | |
Source Publication | Analytical Methods |
ISSN | 1759-9660 |
Volume | 6Issue:15Pages:5720-5726 |
Abstract | The colorimetric detection of heavy metal ions based on gold nanoparticles (GNPs) with a functionalized surface layer has received much attention due to their unique size and the dependence of their optical and electronic properties on the degree of aggregation. We developed a simple, environmentally friendly detection technique which uses GNPs functionalized with Xanthoceras sorbifolia tannin (XT) as a colorimetric probe for the selective detection of Cr3+ based on the aggregation-induced color change in the GNPs. In the synthesis of the XT-functionalized GNPs, XT simultaneously acts as a reducing and a stabilizing agent without requiring additional reagents or treatment. The XT-stabilized GNPs obtained are almost spherical, stable and water-soluble. The XT-stabilized GNPs can be used as a high-selectivity template to chelate with Cr3+; this chelation induces the aggregation of the GNPs, resulting in a color change from red to gray/purple within a few seconds. The proposed colorimetric sensor has been successfully applied to the detection of Cr3+ in tap water and river water. Compared with the current materials and methods for Cr3+ detection based on GNPs, this approach opens up a novel and environmentally friendly technique for the efficient detection of Cr3+. |
Subject Area | 分析化学与药物化学 |
DOI | 10.1039/c4ay00976b |
Funding Organization | the National Nature Science Foundation of China (nos 21105106;21375136). |
Indexed By | SCI |
If | 1.821 |
Language | 英语 |
Funding Project | 药物化学成分研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/6937 |
Collection | 中科院西北特色植物资源化学重点实验室/甘肃省天然药物重点实验室 |
Corresponding Author | Shi YP(师彦平) |
Affiliation | Chinese Acad Sci, Lanzhou Inst Chem Phys, Key Lab Nat Med Gansu Prov, Key Lab Chem NW Plant Resources CAS, Lanzhou 730000, Peoples R China |
Recommended Citation GB/T 7714 | Ha W,Yu J,Wang R,et al. "Green" colorimetric assay for the selective detection of trivalent chromium based on Xanthoceras sorbifolia tannin attached to gold nanoparticles[J]. Analytical Methods,2014,6(15):5720-5726. |
APA | Ha W,Yu J,Wang R,Chen J,Shi YP,&师彦平.(2014)."Green" colorimetric assay for the selective detection of trivalent chromium based on Xanthoceras sorbifolia tannin attached to gold nanoparticles.Analytical Methods,6(15),5720-5726. |
MLA | Ha W,et al.""Green" colorimetric assay for the selective detection of trivalent chromium based on Xanthoceras sorbifolia tannin attached to gold nanoparticles".Analytical Methods 6.15(2014):5720-5726. |
Files in This Item: | ||||||
File Name/Size | DocType | Version | Access | License | ||
AnalMethods-2014(HaW(1581KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment