Effects of Non‐specific and Specific Solvation on Adsorption of BPTI on Au Surface: Insight from Molecular Dynamics Simulation
Effects of Non‐specific and Specific Solvation on Adsorption of BPTI on Au Surface: Insight from Molecular Dynamics Simulation
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非特异性和特异性溶剂化对 BPTI 在 Au 表面吸附的影响:来自分子动力学模拟的见解
DOI:
10.1063/1674-0068/26/05/558-568
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发表时间:
2013
影响因子:
1
通讯作者:
N. Zhao
中科院分区:
文献类型:
--
作者:
Wei Yang;Liyun Zhang;Meng;X. Pu;N. Zhao
Proteins adsorption at solid surfaces are of paramount important for many natural processes. However, the role of specific water in influencing the adsorption process has not been well understood. We used molecular dynamics simulation to study the adsorption of BPTI on Au surface in three water environments (dielectric constant model, partial and full solvation models). The result shows that a fast and strong adsorption can occur in the dielectric environment, which leads to significant structure changes, as confirmed by great deviation from the crystal structure, largely spreading along the Au surface, rapid lose in all secondary structures and the great number of atoms in contact with the surface. Compared to the dielectric model, slower adsorption and fewer changes in the calculated properties above are observed in the partial solvation system since the specific water layer weakens the adsorption effects. However, in the partial solvation system, the adsorption of polar Au surface causes a significant ...
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