Size-Dependent Spontaneous Separation of Colloidal Particles in Sub-Microliter Suspension by Cations.
Size-Dependent Spontaneous Separation of Colloidal Particles in Sub-Microliter Suspension by Cations.
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亚微升悬浮液中胶体颗粒的阳离子自发分离。
DOI:
10.3390/ijms23158055
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发表时间:
2022-07-22
影响因子:
5.6
通讯作者:
中科院分区:
文献类型:
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作者:
Great efforts have been made to separate micro/nanoparticles in small-volume specimens, but it is a challenge to achieve the simple, maneuverable and low-cost separation of sub-microliter suspension with large separation distances. By simply adding trace amounts of cations (Mg2+/Ca2+/Na+), we experimentally achieved the size-dependent spontaneous separation of colloidal particles in an evaporating droplet with a volume down to 0.2 μL. The separation distance was at a millimeter level, benefiting the subsequent processing of the specimen. Within only three separating cycles, the mass ratio between particles with diameters of 1.0 μm and 0.1 μm can be effectively increased to 13 times of its initial value. A theoretical analysis indicates that this spontaneous separation is attributed to the size-dependent adsorption between the colloidal particles and the aromatic substrate due to the strong hydrated cation-π interactions.
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影响因子:
5.6
作者:
通讯作者:
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影响因子:
6.1
作者:
Lin, Shiang-Chi;Lu, Jau-Ching;Tung, Yi-Chung
通讯作者:
Tung, Yi-Chung
影响因子:
3.5
作者:
Jiang, Jie;Mu, Liuhua;Fang, Haiping
通讯作者:
Fang, Haiping
影响因子:
3.9
作者:
Lotito, Valeria;Zambelli, Tomaso
通讯作者:
Zambelli, Tomaso
影响因子:
2.4
作者:
Deegan, RD;Bakajin, O;Witten, TA
通讯作者:
Witten, TA