Confinement of water droplets on rectangular micro/nano-arrayed surfaces.
Micro-patterned surfaces with alternate hydrophilic and hydrophobic rectangular areas effectively confine water droplets down to attolitre volumes. The contact angle, volume, and geometry of the confined droplets as a function of the geometry and physico-chemical properties of the confining surfaces have been determined by phenomenological simulations, validated by atomic force microscopy measurements. The combination between experiments and simulations can be used for the purposeful design of arrays with surface-addressable hydrophobicity employed in digital microfluidics and high-throughput screening nanoarrays.
Department of Bioengineering, Faculty of Engineering, McGill University, Montreal, Quebec H3A 0C3, Canada. dan.nicolau@mcgill.ca.
Ondřej
O
Kašpar
Hailong
H
Zhang
Viola
V
Tokárová
Reinhard I
RI
Boysen
Gemma Rius
GR
Suñé
Xavier
X
Borrise
Francesco
F
Perez-Murano
Milton T W
MT
Hearn
Dan V
DV
Nicolau