Interaction and diffusion of gold nanoparticles in bovine serum albumin solutions

被引：27

作者：

Kohli, Indermeet ^{[1
]}

Alam, Sharmine ^{[1
]}

Patel, Bhavdeep ^{[1
]}

Mukhopadhyay, Ashis ^{[1
]}

机构：

[1] Wayne State Univ, Dept Phys & Astron, Detroit, MI 48201 USA

来源：

APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 20期

关键词：

POLYMER-SOLUTIONS; PROTEIN; FLUORESCENCE; LUMINESCENCE; NANORODS; BEHAVIOR; BINDING; CANCER; CORONA; SIZE;

D O I：

10.1063/1.4807672

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We studied the interactions of small sized, radius of 2.5-10 nm, gold nanoparticles (AuNPs) with bovine serum albumin (BSA). Fluctuation correlation spectroscopy (FCS) was used to monitor the changes in the Brownian diffusion of these NPs. Our results indicate a BSA monolayer formation at the NP surface with a thickness of 3.8 nm. The thickness of the adsorbed layer was independent of NP size. Best fit was obtained by the anticooperative binding model with the Hill coefficient of n = 0.63. Dissociation constant (K-D) increases with particle size indicating stronger interaction of BSA with smaller sized NPs. (C) 2013 AIP Publishing LLC.

引用

页数：4

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