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Self-Partitioned Droplet Array on Laser-Patterned Superhydrophilic Glass Surface for Wall-less Cell Arrays
- Xu, Kerui, Wang, Xiaopu, Ford, Roseanne M., Landers, James P.
- Analytical chemistry 2016 v.88 no.5 pp. 2652-2658
- carbon dioxide, cleaning, glass, methodology
- In this work, we report a novel method for the creation of superhydrophilic patterns on the surface of hydrophobically coated glass through CO₂ laser cleaning. This mask-free approach requires no photolithography for the print of the features, and only a single-step surface pretreatment is needed. The laser-cleaned glass surface enables self-partitioning of liquid into droplet arrays with controllable, quantitative volumes. We further designed wall-less cell arrays for the mapping of culturing conditions and demonstrated the potential of this droplet-arraying method.