Double-layer mediated electromechanical response of amyloid fibrils in liquid environment.
Double-layer mediated electromechanical response of amyloid fibrils in liquid environment.
复制标题
DOI:
10.1021/nn901127k
复制
发表时间:
2010-02-23
期刊:
影响因子:
17.1
通讯作者:
Kalinin SV
中科院分区:
文献类型:
--
作者:
Nikiforov MP;Thompson GL;Reukov VV;Jesse S;Guo S;Rodriguez BJ;Seal K;Vertegel AA;Kalinin SV
Harnessing electrical bias-induced mechanical motion on the nanometer and molecular scale is a critical step towards understanding the fundamental mechanisms of redox processes and implementation of molecular electromechanical machines. Probing these phenomena in biomolecular systems requires electromechanical measurements be performed in liquid environments. Here we demonstrate the use of band excitation piezoresponse force microscopy for probing electromechanical coupling in amyloid fibrils. The approaches for separating the elastic and electromechanical contributions based on functional fits and multivariate statistical analysis are presented. We demonstrate that in the bulk of the fibril the electromechanical response is dominated by double-layer effects (consistent with shear piezoelectricity of biomolecules), while a number of electromechanically active hot spots possibly related to structural defects are observed.
登录
查看更多内容
影响因子:
4
作者:
Jesse, S.;Nikiforov, M. P.;Kalinin, S. V.
通讯作者:
Kalinin, S. V.
影响因子:
2.2
作者:
Bosman, M.;Watanabe, M.;Keast, V. J.
通讯作者:
Keast, V. J.
影响因子:
3.5
作者:
Jesse, Stephen;Kalinin, Sergei V.
通讯作者:
Kalinin, Sergei V.
影响因子:
5.6
作者:
GEDDES, AJ;PARKER, KD;BEIGHTON, E
通讯作者:
BEIGHTON, E
影响因子:
3.9
作者:
Guo, Senli;Akhremitchev, Boris B.
通讯作者:
Akhremitchev, Boris B.