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Surface-Directed Liquid Flow Inside Microchannels
Abstract
Self-assembled monolayer chemistry was used in combination with either multistream laminar flow or photolithography to pattern surface free energies inside microchannel networks. Aqueous liquids introduced into these patterned channels are confined to the hydrophilic pathways, provided the pressure is maintained below a critical value. The maximum pressure is determined by the surface free energy of the liquid, the advancing contact angle of the liquid on the hydrophobic regions, and the channel depth. Surface-directed liquid flow was used to create pressure-sensitive switches inside channel networks. The ability to confine liquid flow inside microchannels with only two physical walls is expected to be useful in applications where a large gas-liquid interface is critical, as demonstrated here by a gas-liquid reaction.
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Citations
Cited by
Liu, Y., Ai, K., & Lu, L. (2014) · Chemical Reviews · doi:10.1021/cr400407a · Cited by 4,794
Seemann, R., Brinkmann, M., Pfohl, T., & Herminghaus, S. (2012) · Reports on Progress in Physics · doi:10.1088/0034-4885/75/1/016601 · Cited by 1,049
Kim, J., Chen, B., Reineke, T. M., Li, H., Eddaoudi, M., Moler, D. B., O'Keeffe, M., & Yaghi, O. M. (2001) · Journal of the American Chemical Society · doi:10.1021/ja010825o · Cited by 832
Engineering Silicon Oxide Surfaces Using Self‐Assembled Monolayers
Onclin, S., Ravoo, B. J., & Reinhoudt, D. N. (2005) · Angewandte Chemie International Edition · doi:10.1002/anie.200500633 · Cited by 721
Capillary microfluidics in microchannels: from microfluidic networks to capillaric circuits
Olanrewaju, A., Beaugrand, M., Yafia, M., & Juncker, D. (2018) · Lab on a Chip · doi:10.1039/c8lc00458g · Cited by 451
Metadata
- Authors
- Zhao, B., Moore, J. S., & Beebe, D. J.
- Venue
- Science
- Published
- 2001-02-09
- Volume
- 291
- Issue
- 5506
- Pages
- 1023-1026
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2048443746
- Cited by
- 765
- References
- 0
- FWCI
- 22.71
- Type
- journal article
- Language
- en
- Open access
- closed
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
