Document Detail

Antimicrobial activity of single-walled carbon nanotubes: length effect.
MedLine Citation:
PMID:  20849142     Owner:  NLM     Status:  MEDLINE    
This study investigated the effect of SWCNTs' length on their antimicrobial activity to bacterial cells in suspensions. Three different lengths of SWCNTs (<1 μm, 1-5 μm, and ∼5 μm) were tested. At same weight concentration, longer SWCNTs exhibited stronger antimicrobial activity. The fluorescence and SEM images revealed that the longer SWCNTs aggregated with bacterial cells more effectively, whereas short length SWCNTs tended to aggregate themselves without involving many bacterial cells. Moreover, longer SWCNTs exhibited more pronounced concentration-dependence and treatment time-dependence on their antimicrobial activity.
Cheenou Yang; Jaouad Mamouni; Yongan Tang; Liju Yang
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Langmuir : the ACS journal of surfaces and colloids     Volume:  26     ISSN:  1520-5827     ISO Abbreviation:  Langmuir     Publication Date:  2010 Oct 
Date Detail:
Created Date:  2010-10-12     Completed Date:  2011-01-21     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9882736     Medline TA:  Langmuir     Country:  United States    
Other Details:
Languages:  eng     Pagination:  16013-9     Citation Subset:  IM    
Biomanufacturing Research Institute and Technology Enterprises (BRITE) and Department of Pharmaceutical Sciences, North Carolina Central University, Durham, North Carolina 27707, USA.
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MeSH Terms
Anti-Infective Agents / chemistry*,  metabolism,  pharmacology*
Dose-Response Relationship, Drug
Microscopy, Electron, Scanning
Microscopy, Fluorescence
Nanotubes, Carbon / chemistry*
Salmonella / cytology,  drug effects,  metabolism
Time Factors
Reg. No./Substance:
0/Anti-Infective Agents; 0/Nanotubes, Carbon

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