Amphiphile-Induced Anisotropic Colloidal Self-Assembly.
Amphiphile-Induced Anisotropic Colloidal Self-Assembly.
复制标题
两亲物诱导的各向异性胶体自组装。
DOI:
10.1021/acs.langmuir.8b01382
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Rey M
中科院分区:
文献类型:
--
作者:
Rey M
Spherical colloidal particles typically self-assemble into hexagonal lattices when adsorbed at liquid interfaces. More complex assembly structures, including particle chains and phases with square symmetry, were theoretically predicted almost two decades ago for spherical particles interacting via a soft repulsive shoulder. Here, we demonstrate that such complex assembly phases can be experimentally realized with spherical colloidal particles assembled at the air/water interface in the presence of molecular amphiphiles. We investigate the interfacial behavior of colloidal particles in the presence of different amphiphiles on a Langmuir trough. We transfer the structures formed at the interface onto a solid substrate while continuously compressing, which enables us to correlate the prevailing assembly phase as a function of the available interfacial area. We observe that block copolymers with similarities to the chemical nature of the colloidal particles, as well as the surface-active protein bovine serum albumin, direct the colloidal particles into complex assembly phases, including chains and square arrangements. The observed structures are reproduced by minimum energy calculations of hard core–soft shoulder particles with experimentally realistic interaction parameters. From the agreement between experiments and theory, we hypothesize that the presence of the amphiphiles manipulates the interaction potential of the colloidal particles. The assembly of spherical colloidal particles into complex assembly phases on solid substrates opens new possibilities for surface patterning by enriching the library of possible structures available for colloidal lithography.
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DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
M. Shindel;Szu‐Wen Wang;A. Mohraz
通讯作者:
A. Mohraz
DOI:
10.1016/s0968-5677(97)00012-6
发表时间:
1997
期刊:
Supramolecular Science
影响因子:
--
作者:
K. Fulda;B. Tieke
通讯作者:
B. Tieke
DOI:
10.1073/pnas.0910931107
发表时间:
2010-03-02
影响因子:
11.1
作者:
Koenig, Gary M., Jr.;Lin, I-Hsin;Abbott, Nicholas L.
通讯作者:
Abbott, Nicholas L.
影响因子:
3.9
作者:
Gong, TY;Wu, DT;Marr, DWM
通讯作者:
Marr, DWM
影响因子:
38.3
作者:
Kolle, Mathias;Salgard-Cunha, Pedro M.;Steiner, Ullrich
通讯作者:
Steiner, Ullrich