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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| Main Authors: | , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
25 April 2012
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| In: |
Journal of the American Chemical Society
Year: 2012, Volume: 134, Issue: 16, Pages: 6920-6923 |
| ISSN: | 1520-5126 |
| DOI: | 10.1021/ja301167y |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1021/ja301167y Verlag, Volltext: http://pubs.acs.org/doi/10.1021/ja301167y 
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| Author Notes: | Steven C. Hayden, Gengxiang Zhao, Krishnendu Saha, Ronnie L. Phillips, Xiaoning Li, Oscar R. Miranda, Vincent M. Rotello, Mostafa A. El-Sayed, Ingeborg Schmidt-Krey, and Uwe H.F. Bunz |
| Summary: | 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. |
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| Item Description: | Published online17 April 2012 Gesehen am 18.10.2018 |
| Physical Description: | Online Resource |
| ISSN: | 1520-5126 |
| DOI: | 10.1021/ja301167y |