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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.6b01289
|2 doi
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|a eng
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|a Uz, Metin
|e verfasserin
|4 aut
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|a Effect of PEG Grafting Density and Hydrodynamic Volume on Gold Nanoparticle-Cell Interactions
|b An Investigation on Cell Cycle, Apoptosis, and DNA Damage
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|c 2016
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 05.06.2018
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|a Date Revised 02.12.2018
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a In this study, interactions of polyethylene glycol (PEG)-coated gold nanoparticles (AuNPs) with cells were investigated with particular focus on the relationship between the PEG layer properties (conformation, grafting density, and hydrodynamic volume) and cell cycle arrest, apoptosis, and DNA damage. Steric hindrance and PEG hydrodynamic volume controlled the protein adsorption, whereas the AuNP core size and PEG hydrodynamic volume were primary factors for cell uptake and viability. At all PEG grafting densities, the particles caused significant cell cycle arrest and DNA damage against CaCo2 and PC3 cells without apoptosis. However, at a particular PEG grafting density (∼0.65 chains/nm(2)), none of these severe damages were observed on 3T3 cells indicating discriminating behavior of the healthy (3T3) and cancer (PC3 and CaCo2) cells. It was concluded that the PEG grafting density and hydrodynamic volume, tuned with the PEG concentration and AuNP size, played an important role in particle-cell interactions
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Polyethylene Glycols
|2 NLM
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|a 3WJQ0SDW1A
|2 NLM
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|a Gold
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|a Bulmus, Volga
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|a Alsoy Altinkaya, Sacide
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 32(2016), 23 vom: 14. Juni, Seite 5997-6009
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|x 1520-5827
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|g volume:32
|g year:2016
|g number:23
|g day:14
|g month:06
|g pages:5997-6009
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|u http://dx.doi.org/10.1021/acs.langmuir.6b01289
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