Surface Preparation for Single-Molecule Chemistry.
Surface Preparation for Single-Molecule Chemistry.
复制标题
单分子化学的表面制备
DOI:
10.1021/acs.langmuir.8b03603
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
G. Jung
中科院分区:
文献类型:
--
作者:
J. Menges;A. Clasen;M. Jourdain;J. Beckmann;C. Hoffmann;J. König;G. Jung
Immobilization procedures, intended to enable prolonged observation of single molecules by fluorescence microscopy, may generate heterogeneous microenvironments, thus inducing heterogeneity in the molecular behavior. On that account, we propose a straightforward surface preparation procedure for studying chemical reactions on the single-molecule level. Sensor fluorophores were developed, which exhibit dual-emissive characteristics in a homogeneously catalyzed showcase reaction. These molecules undergo a shift of fluorescence wavelength of about 100 nm upon Pd(0)-induced deallylation in the Tsuji–Trost reaction, allowing for separate visualization of the starting material and product. Whereas a simultaneous immobilization of dye and inert silane leads to strongly polydisperse reaction kinetics, a consecutive immobilization routine with deposition of dye molecules as the last step provides substrates underlying the kinetics of ensemble experiments. Also, the found kinetics are unaffected by the chemical variation of inert silanes, nearly uniform, and therefore well reproducible. Additional parameters like photostability, signal-to-noise ratio, dye-molecule density, and spatial distribution of dye molecules are, as well, hardly affected by surface modification in the successive immobilization scheme.
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影响因子:
3.1
作者:
Baumgärtel T;von Borczyskowski C;Graaf H
通讯作者:
Graaf H
DOI:
10.1021/la501231v
发表时间:
2014
期刊:
Langmuir : the ACS journal of surfaces and colloids
影响因子:
--
作者:
Alex Dagg;Zhiyuan Huang;Monica A Marks;Dapeng Zhou;M. Chawla;M. Tang
通讯作者:
M. Tang
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
Daniel A. Ruddy;R. Brutchey;T. Tilley
通讯作者:
T. Tilley
DOI:
10.1039/c3cp53082e
发表时间:
2013-10
期刊:
Physical chemistry chemical physics : PCCP
影响因子:
--
作者:
Christian Spies;Björn Finkler;Nursel Acar;Gregor Jung
通讯作者:
Christian Spies;Björn Finkler;Nursel Acar;Gregor Jung
影响因子:
3.5
作者:
Petri Turunen;A. E. Rowan;Kerstin G. Blank
通讯作者:
Kerstin G. Blank