A visualized method for Cu2+ ion detection by self-assembling azide functionalized free graphene oxide using click chemistry. Issue 98 (6th October 2016)

• Record Type: Journal Article
• Authors: Tu, Qin; Zhao, Lei; Han, Xiang; Wang, Dong-En; Yuan, Mao-Sen; Tian, Chang; Wang, Jinyi
• Is Part Of: RSC advances. Volume 6:Issue 98(2016)
• Page Start: 95628
• Page End: 95632
• Publication Date: 2016-10-06
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6ra18488j
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : We report a visualized method for the detection of Cu 2+ ions by self-assembling azide functionalized graphene oxide using click chemistry. Abstract : We report a visualized method for the detection of Cu 2+ ions, which relies on the Cu(i )-catalyzed 1, 3-dipolar cycloaddition of alkynes on the surface of functionalized QDs and azides on the surface of functionalized graphene oxide (GO). This click chemistry process results in self-assembly of GO-N3 sheets into aggregates that can be observed by the naked eye. The catalyst, Cu(i ), was conveniently derived from the reduction of Cu(ii ) in the presence of sodium ascorbate, thereby allowing the reaction to serve as a naked eye method to assay for the presence of Cu 2+ ions.