Aggregation and Interaction of Cationic Nanoparticles on Bacterial Surfaces
Cationic monolayer-protected gold nanoparticles (AuNPs) with sizes of 6 or 2 nm interact with the cell membranes of Escherichia coli (Gram−) and Bacillus subtilis (Gram+), resulting in the formation of strikingly distinct AuNP surface aggregation patterns or lysis depending upon the size of the AuNP...
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| Veröffentlicht in: | Journal of the American Chemical Society 2012-04, Vol.134 (16), p.6920-6923 |
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| container_issue | 16 |
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| container_title | Journal of the American Chemical Society |
| container_volume | 134 |
| creator | Hayden, Steven C Zhao, Gengxiang Saha, Krishnendu Phillips, Ronnie L Li, Xiaoning Miranda, Oscar R Rotello, Vincent M El-Sayed, Mostafa A Schmidt-Krey, Ingeborg Bunz, Uwe H. F |
| description | Cationic monolayer-protected gold nanoparticles (AuNPs) with sizes of 6 or 2 nm interact with the cell membranes of Escherichia coli (Gram−) and Bacillus subtilis (Gram+), resulting in the formation of strikingly distinct AuNP surface aggregation patterns or lysis depending upon the size of the AuNPs. The aggregation phenomena were investigated by transmission electron microscopy and UV–vis spectroscopy. Upon proteolytic treatment of the bacteria, the distinct aggregation patterns disappeared. |
| doi_str_mv | 10.1021/ja301167y |
| format | Article |
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Upon proteolytic treatment of the bacteria, the distinct aggregation patterns disappeared.</description><subject>Bacillus subtilis - chemistry</subject><subject>Bacillus subtilis - cytology</subject><subject>Cations - chemistry</subject><subject>Escherichia coli - chemistry</subject><subject>Escherichia coli - cytology</subject><subject>Gold - chemistry</subject><subject>Metal Nanoparticles - chemistry</subject><subject>Microscopy, Electron, Transmission</subject><subject>Spectrophotometry, Ultraviolet</subject><subject>Surface Properties</subject><issn>0002-7863</issn><issn>1520-5126</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpt0D1PwzAQBmALgWgpDPwBlAUJhoDPdmNnLBUfFRUMwBydHbtKlSbFTob-e0xbOrH4dLpHr-SXkEugd0AZ3C-RU4BMbo7IEMaMpmNg2TEZUkpZKlXGB-QshGVcBVNwSgaMCZWPJR2S18li4e0Cu6ptEmzKZNZ01qPZ7q1LpttLZZI3bNo1-q4ytQ1JPD5EZH2FdfLRe4fGhnNy4rAO9mI_R-Tr6fFz-pLO359n08k8Ra6gS5k0DEQm4yPLLNc200bnygmQqDUVSgjIwKFmpcs5cGpzBeAcZ5obVJKPyM0ud-3b796GrlhVwdi6xsa2fShiJ1RxPlYi0tsdNb4NwVtXrH21Qr-J6NdBcegu2qt9bK9XtjzIv7IiuN4BNKFYtr1v4i__CfoBflN0iw</recordid><startdate>20120425</startdate><enddate>20120425</enddate><creator>Hayden, Steven C</creator><creator>Zhao, Gengxiang</creator><creator>Saha, Krishnendu</creator><creator>Phillips, Ronnie L</creator><creator>Li, Xiaoning</creator><creator>Miranda, Oscar R</creator><creator>Rotello, Vincent M</creator><creator>El-Sayed, Mostafa A</creator><creator>Schmidt-Krey, Ingeborg</creator><creator>Bunz, Uwe H. 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| identifier | ISSN: 0002-7863 |
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| language | eng |
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| source | ACS Publications; MEDLINE |
| subjects | Bacillus subtilis - chemistry Bacillus subtilis - cytology Cations - chemistry Escherichia coli - chemistry Escherichia coli - cytology Gold - chemistry Metal Nanoparticles - chemistry Microscopy, Electron, Transmission Spectrophotometry, Ultraviolet Surface Properties |
| title | Aggregation and Interaction of Cationic Nanoparticles on Bacterial Surfaces |
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