Does the Antibacterial Activity of Silver Nanoparticles Depend on the Shape of the Nanoparticle? A Study of the Gram-Negative Bacterium Escherichia coli
In this work we investigated the antibacterial properties of differently shaped silver nanoparticles against the gram-negative bacterium Escherichia coli, both in liquid systems and on agar plates. Energy-filtering transmission electron microscopy images revealed considerable changes in the cell mem...
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| Veröffentlicht in: | Applied and Environmental Microbiology 2007-03, Vol.73 (6), p.1712-1720 |
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| container_title | Applied and Environmental Microbiology |
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| creator | Pal, Sukdeb Tak, Yu Kyung Song, Joon Myong |
| description | In this work we investigated the antibacterial properties of differently shaped silver nanoparticles against the gram-negative bacterium Escherichia coli, both in liquid systems and on agar plates. Energy-filtering transmission electron microscopy images revealed considerable changes in the cell membranes upon treatment, resulting in cell death. Truncated triangular silver nanoplates with a {111} lattice plane as the basal plane displayed the strongest biocidal action, compared with spherical and rod-shaped nanoparticles and with Ag⁺ (in the form of AgNO₃). It is proposed that nanoscale size and the presence of a {111} plane combine to promote this biocidal property. To our knowledge, this is the first comparative study on the bactericidal properties of silver nanoparticles of different shapes, and our results demonstrate that silver nanoparticles undergo a shape-dependent interaction with the gram-negative organism E. coli. |
| doi_str_mv | 10.1128/AEM.02218-06 |
| format | Article |
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A Study of the Gram-Negative Bacterium Escherichia coli</title><source>American Society for Microbiology</source><source>MEDLINE</source><source>PubMed Central</source><source>Alma/SFX Local Collection</source><creator>Pal, Sukdeb ; Tak, Yu Kyung ; Song, Joon Myong</creator><creatorcontrib>Pal, Sukdeb ; Tak, Yu Kyung ; Song, Joon Myong</creatorcontrib><description>In this work we investigated the antibacterial properties of differently shaped silver nanoparticles against the gram-negative bacterium Escherichia coli, both in liquid systems and on agar plates. Energy-filtering transmission electron microscopy images revealed considerable changes in the cell membranes upon treatment, resulting in cell death. Truncated triangular silver nanoplates with a {111} lattice plane as the basal plane displayed the strongest biocidal action, compared with spherical and rod-shaped nanoparticles and with Ag⁺ (in the form of AgNO₃). It is proposed that nanoscale size and the presence of a {111} plane combine to promote this biocidal property. To our knowledge, this is the first comparative study on the bactericidal properties of silver nanoparticles of different shapes, and our results demonstrate that silver nanoparticles undergo a shape-dependent interaction with the gram-negative organism E. coli.</description><identifier>ISSN: 0099-2240</identifier><identifier>EISSN: 1098-5336</identifier><identifier>DOI: 10.1128/AEM.02218-06</identifier><identifier>PMID: 17261510</identifier><identifier>CODEN: AEMIDF</identifier><language>eng</language><publisher>Washington, DC: American Society for Microbiology</publisher><subject>Anti-Bacterial Agents - pharmacology ; Apoptosis ; Bacteriology ; Biological and medical sciences ; Cell Membrane - ultrastructure ; Colony Count, Microbial ; E coli ; Escherichia coli ; Escherichia coli - drug effects ; Escherichia coli - growth & development ; Escherichia coli - ultrastructure ; Fundamental and applied biological sciences. Psychology ; Gram-negative bacteria ; Microbial Viability ; Microbiology ; Microscopy ; Microscopy, Electron, Transmission ; Nanoparticles ; Public Health Microbiology ; Silver ; Silver - pharmacology</subject><ispartof>Applied and Environmental Microbiology, 2007-03, Vol.73 (6), p.1712-1720</ispartof><rights>2007 INIST-CNRS</rights><rights>Copyright American Society for Microbiology Mar 2007</rights><rights>Copyright © 2007, American Society for Microbiology 2007</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c676t-44eb808b2f37aafa763197bb9ef011f3ef30d075edc65f53346a6175b88d45403</citedby><cites>FETCH-LOGICAL-c676t-44eb808b2f37aafa763197bb9ef011f3ef30d075edc65f53346a6175b88d45403</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC1828795/pdf/$$EPDF$$P50$$Gpubmedcentral$$H</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC1828795/$$EHTML$$P50$$Gpubmedcentral$$H</linktohtml><link.rule.ids>230,314,727,780,784,885,3188,3189,27924,27925,53791,53793</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=18610263$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17261510$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Pal, Sukdeb</creatorcontrib><creatorcontrib>Tak, Yu Kyung</creatorcontrib><creatorcontrib>Song, Joon Myong</creatorcontrib><title>Does the Antibacterial Activity of Silver Nanoparticles Depend on the Shape of the Nanoparticle? A Study of the Gram-Negative Bacterium Escherichia coli</title><title>Applied and Environmental Microbiology</title><addtitle>Appl Environ Microbiol</addtitle><description>In this work we investigated the antibacterial properties of differently shaped silver nanoparticles against the gram-negative bacterium Escherichia coli, both in liquid systems and on agar plates. Energy-filtering transmission electron microscopy images revealed considerable changes in the cell membranes upon treatment, resulting in cell death. Truncated triangular silver nanoplates with a {111} lattice plane as the basal plane displayed the strongest biocidal action, compared with spherical and rod-shaped nanoparticles and with Ag⁺ (in the form of AgNO₃). It is proposed that nanoscale size and the presence of a {111} plane combine to promote this biocidal property. To our knowledge, this is the first comparative study on the bactericidal properties of silver nanoparticles of different shapes, and our results demonstrate that silver nanoparticles undergo a shape-dependent interaction with the gram-negative organism E. coli.</description><subject>Anti-Bacterial Agents - pharmacology</subject><subject>Apoptosis</subject><subject>Bacteriology</subject><subject>Biological and medical sciences</subject><subject>Cell Membrane - ultrastructure</subject><subject>Colony Count, Microbial</subject><subject>E coli</subject><subject>Escherichia coli</subject><subject>Escherichia coli - drug effects</subject><subject>Escherichia coli - growth & development</subject><subject>Escherichia coli - ultrastructure</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Gram-negative bacteria</subject><subject>Microbial Viability</subject><subject>Microbiology</subject><subject>Microscopy</subject><subject>Microscopy, Electron, Transmission</subject><subject>Nanoparticles</subject><subject>Public Health Microbiology</subject><subject>Silver</subject><subject>Silver - pharmacology</subject><issn>0099-2240</issn><issn>1098-5336</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFks9v0zAUxyMEYqNw4wwGCU5kPNuJ7VxAZSsDaYxD2dl6cZ3GUxIXOy3qf8Kfi7sWNrhwsq33ed_3w98se0rhhFKm3k5nX06AMapyEPeyYwqVykvOxf3sGKCqcsYKOMoexXgNAAUI9TA7opIJWlI4zn6eeRvJ2FoyHUZXoxltcNiRqRndxo1b4hsyd93GBnKJg19hGJ3pUsqZXdlhQfxwkzxvcWV37O5xF3xPpmQ-rhfb38HzgH1-aZeY9C35sC-47sksmjbdTOuQGN-5x9mDBrtonxzOSXb1cfbt9FN-8fX88-n0IjdCijEvClsrUDVruERsUApOK1nXlW2A0obbhsMCZGkXRpRN2kshUFBZ1kotirIAPsne7XVX67pPlB3GgJ1eBddj2GqPTv8dGVyrl36jqWJKVmUSeH0QCP772sZR9y4a23U4WL-OWgIrU0X2XzD1LSvOd4ov_wGv_ToMaQuaQVkpoImbZG_2kAk-xmCbPy1T0Dtj6GQMfWMMDSLhz-6OeQsfnJCAVwcAo8GuCTgYF285JSgwwRP3Ys-1btn-cMFqjL1G22vJtUh6dDfp8z3ToNe4DEnnas6Ackg_IWXa-i-2ANWY</recordid><startdate>20070301</startdate><enddate>20070301</enddate><creator>Pal, Sukdeb</creator><creator>Tak, Yu Kyung</creator><creator>Song, Joon Myong</creator><general>American Society for Microbiology</general><scope>FBQ</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QL</scope><scope>7QO</scope><scope>7SN</scope><scope>7SS</scope><scope>7ST</scope><scope>7T7</scope><scope>7TM</scope><scope>7U9</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>H94</scope><scope>M7N</scope><scope>P64</scope><scope>RC3</scope><scope>SOI</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20070301</creationdate><title>Does the Antibacterial Activity of Silver Nanoparticles Depend on the Shape of the Nanoparticle? A Study of the Gram-Negative Bacterium Escherichia coli</title><author>Pal, Sukdeb ; Tak, Yu Kyung ; Song, Joon Myong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c676t-44eb808b2f37aafa763197bb9ef011f3ef30d075edc65f53346a6175b88d45403</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Anti-Bacterial Agents - pharmacology</topic><topic>Apoptosis</topic><topic>Bacteriology</topic><topic>Biological and medical sciences</topic><topic>Cell Membrane - ultrastructure</topic><topic>Colony Count, Microbial</topic><topic>E coli</topic><topic>Escherichia coli</topic><topic>Escherichia coli - drug effects</topic><topic>Escherichia coli - growth & development</topic><topic>Escherichia coli - ultrastructure</topic><topic>Fundamental and applied biological sciences. 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A Study of the Gram-Negative Bacterium Escherichia coli</atitle><jtitle>Applied and Environmental Microbiology</jtitle><addtitle>Appl Environ Microbiol</addtitle><date>2007-03-01</date><risdate>2007</risdate><volume>73</volume><issue>6</issue><spage>1712</spage><epage>1720</epage><pages>1712-1720</pages><issn>0099-2240</issn><eissn>1098-5336</eissn><coden>AEMIDF</coden><abstract>In this work we investigated the antibacterial properties of differently shaped silver nanoparticles against the gram-negative bacterium Escherichia coli, both in liquid systems and on agar plates. Energy-filtering transmission electron microscopy images revealed considerable changes in the cell membranes upon treatment, resulting in cell death. Truncated triangular silver nanoplates with a {111} lattice plane as the basal plane displayed the strongest biocidal action, compared with spherical and rod-shaped nanoparticles and with Ag⁺ (in the form of AgNO₃). 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| subjects | Anti-Bacterial Agents - pharmacology Apoptosis Bacteriology Biological and medical sciences Cell Membrane - ultrastructure Colony Count, Microbial E coli Escherichia coli Escherichia coli - drug effects Escherichia coli - growth & development Escherichia coli - ultrastructure Fundamental and applied biological sciences. Psychology Gram-negative bacteria Microbial Viability Microbiology Microscopy Microscopy, Electron, Transmission Nanoparticles Public Health Microbiology Silver Silver - pharmacology |
| title | Does the Antibacterial Activity of Silver Nanoparticles Depend on the Shape of the Nanoparticle? A Study of the Gram-Negative Bacterium Escherichia coli |
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