Next Article in Journal
A Walk in the Park: The Influence of Urban Parks and Community Violence on Physical Activity in Chelsea, MA
Next Article in Special Issue
Fabrication of Te and Te-Au Nanowires-Based Carbon Fiber Fabrics for Antibacterial Applications
Previous Article in Journal
Evaluation of the Survivability of Microorganisms Deposited on Filtering Respiratory Protective Devices under Varying Conditions of Humidity
Previous Article in Special Issue
Developing a Dissociative Nanocontainer for Peptide Drug Delivery
Article Menu

Export Article

Open AccessArticle
Int. J. Environ. Res. Public Health 2016, 13(1), 99; doi:10.3390/ijerph13010099

Synthesis of High Valence Silver-Loaded Mesoporous Silica with Strong Antibacterial Properties

1
Green Energy and Environment Research Laboratories, Industrial Technology Research Institute, 195 Chung Hsing Road, Chutung, Hsinchu County 31040, Taiwan
2
Department of Bioscience Technology, Chung Yuan Christian University, 200 Chung Pei Road, Chung Li District, Taoyuan City 32023, Taiwan
*
Author to whom correspondence should be addressed.
Academic Editor: Huang-Tsung Chang
Received: 12 November 2015 / Revised: 27 December 2015 / Accepted: 28 December 2015 / Published: 4 January 2016
View Full-Text   |   Download PDF [2918 KB, uploaded 4 January 2016]   |  

Abstract

A simple chemical method was developed for preparing high valence silver (Ag)-loaded mesoporous silica (Ag-ethylenediaminetetraacetic acid (EDTA)-SBA-15), which showed strong antibacterial activity. Ag-EDTA-SBA-15 exhibited stronger and more effective antibacterial activity than commercial Ag nanoparticles did, and it offered high stability of high valence silver in the porous matrix and long-lasting antibacterial activity. The synthesized materials were characterized using Fourier transform infrared spectroscopy, powder X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) analysis, and transmission electron microscopy (TEM). Ag existed in both surface complexation and Ag particles. EDTA anchored within a porous structure chelated Ag ions in higher oxidation states and prevented their agglomeration and oxidation reduction. The XRD results showed that most Ag in the Ag-EDTA-SBA-15 existed in higher oxidation states such as Ag(II) and Ag(III). However, the XPS and TEM results showed that Ag easily reduced in lower oxidation states and agglomerated as Ag particles on the exterior layer of the SBA-15. View Full-Text
Keywords: high valence; silver; SBA-15; antibacterial activity high valence; silver; SBA-15; antibacterial activity
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).

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

Chen, C.-C.; Wu, H.-H.; Huang, H.-Y.; Liu, C.-W.; Chen, Y.-N. Synthesis of High Valence Silver-Loaded Mesoporous Silica with Strong Antibacterial Properties. Int. J. Environ. Res. Public Health 2016, 13, 99.

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