Next Article in Journal
Assessment of the Spatial and Temporal Variations of Water Quality for Agricultural Lands with Crop Rotation in China by Using a HYPE Model
Next Article in Special Issue
Antibacterial Applications of Nanodiamonds
Previous Article in Journal
Erratum: Li, M., et al. Middle East Respiratory Syndrome and Medical Students: Letter from China. Int. J. Environ. Res. Public Health 2015, 12, 13289–13294
Previous Article in Special Issue
Effects of Gold Nanorods on Imprinted Genes Expression in TM-4 Sertoli Cells
Article Menu

Export Article

Open AccessArticle
Int. J. Environ. Res. Public Health 2016, 13(3), 334; doi:10.3390/ijerph13030334

Polyethyleneimine Capped Silver Nanoclusters as Efficient Antibacterial Agents

1
National Engineering Laboratory for Rice and By-Products Further Processing, Central South University of Forestry & Technology, Changsha 410004, China
2
State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
3
Hunan Ehome Health Technology Inc., Buliding 6# 1715, LvDi Central Square, Yuelu District, Changsha 410023, China
These authors contributed equally to this work.
*
Authors to whom correspondence should be addressed.
Academic Editor: Huang-Tsung Chang
Received: 2 February 2016 / Revised: 13 March 2016 / Accepted: 14 March 2016 / Published: 18 March 2016
View Full-Text   |   Download PDF [2392 KB, uploaded 18 March 2016]   |  

Abstract

Development of efficient antibacterial agents is critical for human health. In the present study, we investigated the antibacterial activity of polyethyleneimine (PEI)-capped silver nanoclusters (PEI-AgNCs), based on the fact that nanoclusters normally have higher surface-to-volume ratios than traditional nanomaterials and PEI itself has a strong antimicrobial capacity. We synthesized stable silver nanoclusters by altering PEI molecular weight from 0.6 kDa to 25 kDa and characterized them by UV-Vis absorption and fluorescence spectroscopy and high resolution transmission electron microscopy. The sizes of AgNCs were around 2 nm in diameter and were little influenced by the molecular weight of PEIs. The antibacterial abilities of the four PEI-AgNCs were explored on agar plate and in liquid systems. Our results revealed that the antibacterial activity of PEI-AgNCs is excellent and the reduction of PEI molecular weight could result in the increased antibacterial capacity of PEI-AgNCs. Such proposed new materials might be useful as efficient antibacterial agents in practical clinical applications. View Full-Text
Keywords: silver nanoclusters; polyethyleneimine; antibacterial agent silver nanoclusters; polyethyleneimine; antibacterial agent
Figures

Figure 1

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. (CC BY 4.0).

Supplementary material

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Xu, D.; Wang, Q.; Yang, T.; Cao, J.; Lin, Q.; Yuan, Z.; Li, L. Polyethyleneimine Capped Silver Nanoclusters as Efficient Antibacterial Agents. Int. J. Environ. Res. Public Health 2016, 13, 334.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Int. J. Environ. Res. Public Health EISSN 1660-4601 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top