Jump to main content
Jump to site search

Issue 46, 2019
Previous Article Next Article

Metal ion-induced chemiluminescence recovery for highly intensive chemiluminescence bifunctionalized polydopamine nanospheres

Author affiliations

Abstract

It is very important to find good nanomaterials as substrates for the immobilization of chemiluminescence (CL) reagents and catalysts in order to achieve high efficiency in CL functionalized nanomaterials. In this work, N-(4-aminobutyl)-N-ethylisoluminol (ABEI) and Co2+ bifunctionalized polydopamine (Co2+–ABEI–PDA) nanospheres were prepared via a facile strategy by using functional group-rich PDA as a platform for the effective immobilization of ABEI and Co2+ in a robust way for the first time. The Co2+–ABEI–PDA nanospheres were uniform spherical particles with an average diameter of 248 ± 48 nm. The as-prepared Co2+–ABEI–PDA nanospheres exhibited excellent CL efficiency. The CL intensity of Co2+–ABEI–PDA was nearly 4000 times higher than that of ABEI functionalized polydopamine (ABEI–PDA) nanospheres without catalyst in the system. Besides, the CL intensity of Co2+–ABEI–PDA was 320 times higher than that of the Co2+ and ABEI bifunctionalized CaCO3 microspheres. The highly intensive CL mechanism was studied in detail. The inhibition effect towards the free radical scavenging ability of PDA derived from Co2+ coordinated to catechol groups on PDA was observed, resulting in CL recovery. In addition, an optimized ratio of ABEI and Co2+ and a decreased spatial distance between them were achieved in Co2+–ABEI–PDA, which produced a superior catalytic effect to the ABEI–H2O2 system, leading to the outstanding performance of Co2+–ABEI–PDA. The Co2+–ABEI–PDA nanospheres show great application prospects in cold light sources, biosensing and bioimaging etc.

Graphical abstract: Metal ion-induced chemiluminescence recovery for highly intensive chemiluminescence bifunctionalized polydopamine nanospheres

Back to tab navigation

Supplementary files

Article information


Submitted
23 Sep 2019
Accepted
24 Oct 2019
First published
25 Oct 2019

J. Mater. Chem. C, 2019,7, 14588-14593
Article type
Paper

Metal ion-induced chemiluminescence recovery for highly intensive chemiluminescence bifunctionalized polydopamine nanospheres

Y. Liu, W. Shen and H. Cui, J. Mater. Chem. C, 2019, 7, 14588
DOI: 10.1039/C9TC05223B

Social activity

Search articles by author

Spotlight

Advertisements