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Microfluidic Assembly of Homogeneous and Janus Colloid-Filled Hydrogel Granules
Abstract
The microfluidic assembly of colloid-filled hydrogel granules of varying shape and composition is described. First, drops are formed by shearing a concentrated colloidal microsphere-acrylamide suspension in a continuous oil phase using a sheath-flow device. Both homogeneous and Janus (hemispherically distinct) spheres and disks are produced by confining the assembled drops in microchannels of varying geometry. Next, photopolymerization is carried out shortly after drop breakup to preserve their morphology. Representative wet and dried granules are characterized using fluorescence and scanning electron microscopy, respectively. Our approach offers a facile route for assembling colloid-filled hydrogel granules with controlled shape and composition.
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Citations
Cited by
Janus Particles: Synthesis, Self-Assembly, Physical Properties, and Applications
Walther, A., & Müller, A. H. E. (2013) · Chemical Reviews · doi:10.1021/cr300089t · Cited by 1,769
25th Anniversary Article: Rational Design and Applications of Hydrogels in Regenerative Medicine
Annabi, N., Tamayol, A., Uquillas, J. A., Akbari, M., Bertassoni, L. E., Cha, C., Camci‐Unal, G., Dokmeci, M. R., Peppas, N. A., & Khademhosseini, A. (2014) · Advanced Materials · doi:10.1002/adma.201303233 · Cited by 1,409
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
Dripping and jetting in microfluidic multiphase flows applied to particle and fibre synthesis
Nunes, J. K., Tsai, S. S. H., Wan, J., & Stone, H. A. (2013) · Journal of Physics D: Applied Physics · doi:10.1088/0022-3727/46/11/114002 · Cited by 406
Droplet microfluidics: recent developments and future applications
Casadevall i Solvas, X., & deMello, A. (2011) · Chem. Commun. · doi:10.1039/c0cc02474k · Cited by 353
Metadata
- Authors
- Shepherd, R. F., Conrad, J. C., Rhodes, S. K., Link, D. R., Marquez, M., Weitz, D. A., & Lewis, J. A.
- Venue
- Langmuir
- Publisher
- American Chemical Society (ACS)
- Published
- 2006-09-15
- Volume
- 22
- Issue
- 21
- Pages
- 8618-8622
- ISSN
- 0743-7463 (ISSN-L)
- 1520-5827
- OpenAlex
- W2045055845
- Cited by
- 273
- References
- 0
- FWCI
- 15.60
- Type
- journal article
- Language
- en
- Open access
- closed
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- Shepherd, R. F., Conrad, J. C., Rhodes, S. K., Link, D. R., Marquez, M., Weitz, D. A., & Lewis, J. A. (2006). Microfluidic Assembly of Homogeneous and Janus Colloid-Filled Hydrogel Granules. Langmuir. https://doi.org/10.1021/la060759%2B
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