Issue 11, 2017, Issue in Progress

Tunable metal-enhanced fluorescence by pH-responsive polyacryloyl hydrazide capped Ag nanoparticles

Abstract

A new strategy for metal enhanced fluorescence (MEF) was firstly realized based on the surface plasmon resonance of polyacryloyl hydrazide capped Ag nanoparticles (PAH–Ag NPs). Owing to the pH-responsive swelling–shrinking behavior of the polyacryloyl hydrazide (PAH) polymer, the interaction distance between the Por4+ dye molecules and Ag NPs can be controlled under pH stimuli. By this method, we successfully achieved a tunable MEF in the pH range from 4 to 9 and 1.97-fold fluorescence enhancement can be obtained at pH = 4 as compared to the reference. The as-prepared PAH–Ag NPs successfully combined pH sensitivity and the controllable MEF effect into one entity by introducing the PAH polymer on the surface of Ag NPs, which is promising for use as materials for selective biological sensing and imaging.

Graphical abstract: Tunable metal-enhanced fluorescence by pH-responsive polyacryloyl hydrazide capped Ag nanoparticles

Supplementary files

Article information

Article type
Paper
Submitted
23 Nov 2016
Accepted
04 Jan 2017
First published
19 Jan 2017
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2017,7, 6358-6363

Tunable metal-enhanced fluorescence by pH-responsive polyacryloyl hydrazide capped Ag nanoparticles

S. Yuan, F. Ge, Y. Chen and Z. Cai, RSC Adv., 2017, 7, 6358 DOI: 10.1039/C6RA27193F

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party commercial publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements