| Enhanced inactivation of bacteria by metal-oxide nanoparticles combined with visible light irradiation. | |
| | |
MedLine Citation:
|
PMID: 21412807 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
|
BACKGROUND: In recent years nano-metaloxides which easily penetrate into the cells with special interest due to their higher chemical reactivity as compared to that of similar materials in the bulk form. Of particular interest are nano-TiO(2) and ZnO, which have been widely used for their bactericidal and anticancerous properties. PURPOSE: The aim of the present study was to examine the bactericidal properties of nano-TiO(2) and ZnO combined with visible light on S. aureus and S. epidermitis, known for their high prevalence in infected wounds. STUDY: Using the technique of electron-spin resonance (ESR) coupled with spin trapping, we examined the ability of TiO(2) and ZnO nanoparticle suspensions in water to produce reactive oxygen species (ROS) with and without visible light irradiation. The possibility of exciting these nanoparticles with visible light in order to enhance their antimicrobial activity was also tested. RESULTS: Electron-spin resonance measurements revealed that ZnO and TiO(2) nanoparticles are able to produce ROS in water suspension. A remarkable enhancement of ROS production was found following illumination with blue light. In addition, illumination significantly enhanced the antibacterial activity of the nanoparticles. CONCLUSION: The results suggest that nanoparticles combined with visible light can be used for sterilization purposes and may be effective for treating infected wounds. Lasers Surg. Med. 43:236-240, 2011. © 2011 Wiley-Liss, Inc. |
| | |
Authors:
|
Anat Lipovsky; Aharon Gedanken; Yeshayahu Nitzan; Rachel Lubart |
Related Documents
:
|
15535167 - Amygdala and hippocampal activity during acquisition and extinction of human fear condi... 16811627 - Effects of alternative reinforcement: does the source matter? 16812277 - Incentive processes and the peak shift. 7175427 - The acquisition of observing. 21287117 - Can computer mice be used as low-cost devices for the acquisition of planar human movem... 12745687 - Effect of a redesigned two-wheeled container for refuse collecting on mechanical loadin... |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Lasers in surgery and medicine Volume: 43 ISSN: 1096-9101 ISO Abbreviation: Lasers Surg Med Publication Date: 2011 Mar |
Date Detail:
|
Created Date: 2011-03-17 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 8007168 Medline TA: Lasers Surg Med Country: United States |
Other Details:
|
Languages: eng Pagination: 236-40 Citation Subset: IM |
Copyright Information:
|
Copyright © 2011 Wiley-Liss, Inc. |
Affiliation:
|
Departments of Chemistry and Physics, Bar-Ilan University, Ramat-Gan 52900, Israel; Department of Chemistry, Kanbar Laboratory for Nanomaterials, Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 52900, Israel. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Photodynamic therapy using intra-articular Photofrin for murine MRSA arthritis: biphasic light dose ...
Next Document: Photodynamic suppression of Enterococcus faecalis using the photosensitizer mTHPC.