Using a Molecular Stopwatch to Study Particle Uptake in Pickering Emulsions.
Using a Molecular Stopwatch to Study Particle Uptake in Pickering Emulsions.
复制标题
使用分子秒表研究皮克林乳液中的颗粒吸收。
DOI:
10.1021/acs.langmuir.6b01474
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
Forth J
中科院分区:
文献类型:
--
作者:
Forth J
Colloidal PMMA particles and an interfacially assembled, pH-switchable lipid film (tetradecylammonium hydrogen phosphate, TAHP) were combined to form emulsion droplets with composite interfaces. Two time scales govern the interfacial structure and droplet size of the system: the rate of particle adsorption and the rate of film assembly. We tune these two time scales by varying the particle size (in the case of the particles) and aqueous pH (in the case of the lipid film). Three rates of film assembly are studied: rapid (pH 5), slow (pH 7), and inactive (pH 9). At pH 5, small droplets coated with a mixed interfacial structure are formed, and increasing particle volume fraction does not change the droplet size. At pH 7, the slowed kinetics of TAHP film assembly results in the particle size having a systematic effect upon droplet size: the smaller the particles, the smaller the droplets. At pH 9, TAHP plays no role in the system, and more familiar Pickering emulsions are observed. Finally, we show that at pH 5 both the interfacial particle density and droplet size can be readily tuned in our system. This suggests potential applications in the rational design of capsules and emulsion droplets with tunable interfacial structure.
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影响因子:
15
作者:
Suzuki, Daisuke;Tsuji, Sakiko;Kawaguchi, Haruma
通讯作者:
Kawaguchi, Haruma
DOI:
--
发表时间:
2000
期刊:
影响因子:
--
作者:
J. Ramírez;Robert H. Davis;A. Z. Zinchenko
通讯作者:
A. Z. Zinchenko
DOI:
--
发表时间:
1999
期刊:
影响因子:
--
作者:
J. Ramírez;A. Z. Zinchenko;M. Loewenberg;Robert H. Davis
通讯作者:
Robert H. Davis
DOI:
10.1021/acs.langmuir.5b01981
发表时间:
2015-08
期刊:
Langmuir : the ACS journal of surfaces and colloids
影响因子:
--
作者:
J. Forth;David J. French;A. Gromov;S. King;S. Titmuss;K. M. Lord;M. Ridout;P. Wilde;P. Clegg
通讯作者:
J. Forth;David J. French;A. Gromov;S. King;S. Titmuss;K. M. Lord;M. Ridout;P. Wilde;P. Clegg