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Caprolactonic Poloxamer Analog: PEG-PCL-PEG
Abstract
The aqueous solution of poly(ethylene glycol)-poly(caprolactone)-poly(ethylene glycol) (PEG-PCL-PEG) triblock copolymers (> 15. wt. %) undergoing "clear sol-gel-turbid sol" transition as the temperature increases from 20 to 60 degrees C has been developed. Light scattering and 13C NMR study suggested that the transition mechanisms are the micellar aggregation for the clear sol to gel transition (lower transition), whereas the increase in PCL molecular motion for gel to turbid sol transition (upper transition). In contrast to the previous thermogelling biodegradable polymers with a sticky paste morphology, the powder form of the PEG-PCL-PEG triblock copolymers makes it easy to handle and allows fast dissolution in water. Therefore, the lyophilization into a powder form followed by facile reconstitution was possible. This system is believed to be promising for drug delivery, cell therapy, and tissue engineering.
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Cited by
Block copolymer micelles: preparation, characterization and application in drug delivery
Gaucher, G., Dufresne, M.-H., Sant, V. P., Kang, N., Maysinger, D., & Leroux, J.-C. (2005) · Journal of Controlled Release · doi:10.1016/j.jconrel.2005.09.034 · Cited by 1,498
Hydrogels in a historical perspective: From simple networks to smart materials
Buwalda, S. J., Boere, K. W. M., Dijkstra, P. J., Feijen, J., Vermonden, T., & Hennink, W. E. (2014) · Journal of Controlled Release · doi:10.1016/j.jconrel.2014.03.052 · Cited by 994
Injectable Biodegradable Hydrogels
Nguyen, M. K., & Lee, D. S. (2010) · Macromolecular Bioscience · doi:10.1002/mabi.200900402 · Cited by 481
PEG-based thermosensitive and biodegradable hydrogels
Shi, J., Yu, L., & Ding, J. (2021) · Acta Biomaterialia · doi:10.1016/j.actbio.2021.04.009 · Cited by 341
New Biodegradable Thermogelling Copolymers Having Very Low Gelation Concentrations
Loh, X. J., Goh, S. H., & Li, J. (2007) · Biomacromolecules · doi:10.1021/bm0607933 · Cited by 262
Metadata
- Authors
- Hwang, M. J., Suh, J. M., Bae, Y. H., Kim, S. W., & Jeong, B.
- Venue
- Biomacromolecules
- Publisher
- American Chemical Society (ACS)
- Published
- 2005-01-13
- Volume
- 6
- Issue
- 2
- Pages
- 885-890
- ISSN
- 1525-7797 (ISSN-L)
- 1526-4602
- OpenAlex
- W2089530114
- Cited by
- 262
- References
- 0
- FWCI
- 6.26
- Type
- journal article
- Language
- en
- Open access
- closed
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- Hwang, M. J., Suh, J. M., Bae, Y. H., Kim, S. W., & Jeong, B. (2005). Caprolactonic Poloxamer Analog: PEG-PCL-PEG. Biomacromolecules. https://doi.org/10.1021/bm049347a
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