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Thermocapillary actuation of droplets on chemically patterned surfaces by programmable microheater arrays
Abstract
We have designed a microfluidic device for the actuation of liquid droplets or continuous streams on a solid surface by means of integrated microheater arrays. The microheaters provide control of the surface temperature distribution with high spatial resolution. These temperature gradients locally alter the surface tension along droplets and thin films thus propelling the liquid toward the colder regions. In combination with liquophilic and liquophobic chemical surface patterning, this device can be used as a logistic platform for the parallel and automated routing, mixing and reacting of a multitude of liquid samples, including alkanes, poly(ethylene glycol) and water.
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Citations
Cited by
Soft Actuators for Small-Scale Robotics
Hines, L., Petersen, K., Lum, G. Z., & Sitti, M. (2017) · Advanced Materials · doi:10.1002/adma.201603483 · Cited by 1,337
Choi, K., Ng, A. H. C., Fobel, R., & Wheeler, A. R. (2012) · Annual Review of Analytical Chemistry · doi:10.1146/annurev-anchem-062011-143028 · Cited by 817
PRINCIPLES OF MICROFLUIDIC ACTUATION BY MODULATION OF SURFACE STRESSES
Darhuber, A. A., & Troian, S. M. (2005) · Annual Review of Fluid Mechanics · doi:10.1146/annurev.fluid.36.050802.122052 · Cited by 484
Self-citationPDMS microfluidics: A mini review
Raj M, K., & Chakraborty, S. (2020) · Journal of Applied Polymer Science · doi:10.1002/app.48958 · Cited by 481
Ghosh, A., Ganguly, R., Schutzius, T. M., & Megaridis, C. M. (2014) · Lab Chip · doi:10.1039/c3lc51406d · Cited by 379
Metadata
- Authors
- Darhuber, A. A., Valentino, J. P., Troian, S. M., & Wagner, S.
- Venue
- Journal of Microelectromechanical Systems
- Published
- 2003-12
- Volume
- 12
- Issue
- 6
- Pages
- 873-879
- ISSN
- 1057-7157 (ISSN-L)
- OpenAlex
- W2100838978
- Cited by
- 240
- References
- 0
- FWCI
- 6.37
- Type
- journal article
- Language
- en
- Open access
- closed
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- Darhuber, A. A., Valentino, J. P., Troian, S. M., & Wagner, S. (2003). Thermocapillary actuation of droplets on chemically patterned surfaces by programmable microheater arrays. Journal of Microelectromechanical Systems. https://doi.org/10.1109/jmems.2003.820267
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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.
