Actively controlled self-assembly of colloidal crystals in microfluidic networks by electrocapillary forces.
We report a simple approach to actively control the formation of the self-assembled colloidal crystals in the microfluidic networks using a combination of electrocapillary forces and evaporation-induced self-assembly. Using this scheme, we can not only selectively fabricate the colloidal crystals in the desired channels, but we can also build colloidal crystals with different optical properties in different channels or in the same channel.
Shiu
Jau-Ye
JY
Research Center for Applied Sciences, Academia Sinica, Section 2, 128 Academia Road, Nankang, Taipei 115, Taiwan.
Kuo
Chun-Wen
CW
Chen
Peilin
P