Jump to main content
Jump to site search


Investigation of the surface confinement effect of copper nanoclusters: construction of an ultrasensitive fluorescence turn-on bio-enzyme sensing platform

Author affiliations

Abstract

Copper nanoclusters (CuNCs) have attracted considerable research interest due to their good physicochemical properties, ease of preparation, and low price. However, the low quantum yield and poor stability in aqueous solutions have greatly limited their applications. In order to improve the fluorescence properties and stability of CuNCs, in this paper, the surface confinement effect of CuNCs based on 2D layered double hydroxide (LDH) was proposed to prepare the fluorescent composites of glutathione protected CuNCs and LDH (GS-CuNCs/LDH) with excellent quantum yield and long fluorescence lifetime. Moreover, a novel, simple, and ultrasensitive fluorescence assay for the detection of hyaluronidase was proposed based on the surface confinement effect. The limit of detection for hyaluronidase was as low as 0.014 U mL−1. For the first time, this work developed a bio-enzyme sensing platform based on the surface confinement effect, which can serve as a promising candidate in biosensing.

Graphical abstract: Investigation of the surface confinement effect of copper nanoclusters: construction of an ultrasensitive fluorescence turn-on bio-enzyme sensing platform

Back to tab navigation

Supplementary files

Publication details

The article was received on 16 Jul 2019, accepted on 17 Oct 2019 and first published on 18 Oct 2019


Article type: Paper
DOI: 10.1039/C9NR06036G
Nanoscale, 2019, Advance Article

  •   Request permissions

    Investigation of the surface confinement effect of copper nanoclusters: construction of an ultrasensitive fluorescence turn-on bio-enzyme sensing platform

    J. Yang, N. Song and Q. Jia, Nanoscale, 2019, Advance Article , DOI: 10.1039/C9NR06036G

Search articles by author

Spotlight

Advertisements