One-pot development of water soluble copper nanoclusters with red emission and aggregation induced fluorescence enhancement. Issue 41 (7th April 2016)

• Record Type: Journal Article
• Authors: Li, Dan; Chen, Zhenhua; Wan, Zhanghui; Yang, Tiezhu; Wang, Hao; Mei, Xifan
• Is Part Of: RSC advances. Volume 6:Issue 41(2016)
• Page Start: 34090
• Page End: 34095
• Publication Date: 2016-04-07
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6ra01499b
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : The binding of Zn 2+ and Al 3+ to OH on the copper core of Cu NCs promotes the formation of Cu NC–OH–Zn–OH–Cu NCs and Cu NC–OH–Al–OH–Cu NCs aggregates, which enables aggregation induced fluorescence enhancement. Abstract : One-pot synthesis of water-soluble Cu NCs using DHLA protection ligands by different reducing reagents including NaBH4, N2 H4 and THPC was developed. Furthermore, it was found that the as prepared Cu NCs using THPC as a reducing reagent describe fluorescence enhancement in the presence of Zn 2+ and Al 3+ . It is proposed that the binding of Zn 2+ and Al 3+ to OH on the copper core of Cu NCs promotes the formation of CuNC–OH–Zn–OH–Cu NCs and CuNC–OH–Al–OH–Cu NCs aggregates respectively, which enables aggregation induced fluorescence enhancement. Additionally, it was found that the fluorescence enhancement were partly reversible by the introduction of an alkaline buffer solution and Zn 2+ .