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Photo-responsive polymer micelles from o-nitrobenzyl ester-based amphiphilic block copolymers synthesized by mechanochemical solid-state copolymerization
https://gifu-pu.repo.nii.ac.jp/records/14093
https://gifu-pu.repo.nii.ac.jp/records/1409362ab3313-1221-413c-adec-7bfd7400ca9b
| Item type | 研究室原著論文(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-09-10 | |||||
| タイトル | ||||||
| タイトル | Photo-responsive polymer micelles from o-nitrobenzyl ester-based amphiphilic block copolymers synthesized by mechanochemical solid-state copolymerization | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 抄録 | ||||||
| 値 | Polymer micelles with a tunable drug release would be suitable for the concept of drug delivery system. We constructed photo-responsive polymer micelles from amphiphilic block copolymers. The polymer micelles were synthesized by mechanochemical solid-state copolymerization of poly[N-(2-hydroxypropyl)methacrylamide] (PHPMA) and 4,5-dimethoxy-2-nitrobenzyl methacrylate as a photosensitive moiety. The above mechanochemical solid-state copolymerization was performed by vibratory-ball milling at 30 Hz in a nitrogen atmosphere with the use of an agate vessel and an agate ball to yield amphiphilic block copolymers (PHPMA-b-PDNMA). Spherical polymer micelles were formed by the self-assembly of PHPMA-b-PDNMA. The diameter of the PHPMA-b-PDNMA micelles was in the range of 130-200 nm. The PHPMA-b-PDNMA micelles loaded with the antitumor drug 5-fluorouracil (5-FU) showed photo irradiation induced time-dependent release of 5-FU with an associated decrease of micellar size. The drug release profile of the PHPMA-b-PDNMA micelles followed a clear sigmoid curve. Our approach provides a controlled drug release system through the use of photo-responsive polymer micelles, accompanied by the gradual decrease of micellar size. | |||||
| 書誌情報 |
en : Polymer Journal 発行日 2020-07-31 |
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| DOI | ||||||
| 値 | 10.1038/s41428-020-0387-9 | |||||
