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Journal of Nanomaterials
Volume 2015 (2015), Article ID 792095, 8 pages
http://dx.doi.org/10.1155/2015/792095
Research Article

Synthesis of Luminescent Ag Nanoclusters with Antibacterial Activity

1Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, No. 166, Science Avenue, Zhengzhou 450001, China
2Henan Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Zhengzhou University of Light Industry, No. 166, Science Avenue, Zhengzhou 450001, China
3College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266510, China

Received 5 August 2014; Accepted 14 October 2014

Academic Editor: Xiaoming Li

Copyright © 2015 Ying-Fan Liu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper focuses on the synthesis of novel Ag nanoclusters (NCs) using DHLA as capping reagents in aqueous solution by a photoreduction method. Luminescence studies indicated that the DHLA-Ag NCs exhibited strong blue emission with maximum peak at 480 nm. The maximum emission of the NCs can be greatly improved with irradiating time by around 15-fold from 3 h to 67 h. By means of mycelium growth rate, the results showed that the Ag NCs with smaller sizes had a good antimicrobial effect.