pH-sensitive swelling and release behaviors of anionic hydrogels for intelligent drug delivery system
DC Field | Value | Language |
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dc.contributor.author | Kim, Bumsang | - |
dc.contributor.author | Shin, Youngchan | - |
dc.date.accessioned | 2022-01-14T07:41:48Z | - |
dc.date.available | 2022-01-14T07:41:48Z | - |
dc.date.created | 2022-01-14 | - |
dc.date.issued | 2007-09-15 | - |
dc.identifier.issn | 0021-8995 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/23539 | - |
dc.description.abstract | The pH-sensitive swelling and release behaviors of the anionic P(MAA-co-EGMA) hydrogels were investigated as a biological on-off switch for the design of an intelligent drug delivery system triggered by external pH changes. There was a drastic change of the equilibrium weight swelling ratio of P(MAA-co-EGMA) hydrogels at a pH of around 5, which is the pK(a), of poly (methacrylic acid) (PMAA). At a pH below 5, the hydrogels were in a relatively collapsed state but at a pH higher than 5, the hydrogels swelled to a high degree. When the molecular weight of the pendent poly(ethylene glycol) (PEG) of the P(MAA-co-EGMA) increased, the swelling ratio decreased at a pH higher than 5. The pK(a), values of the P(MAA-co-EGMA) hydrogels moved to a higher pH range as the pendent PEG molecular weight increased. When the feed concentration of the crosslinker of the hydrogel increased the swelling ratio of the P(MAA-co-EGMA) hydrogels decreased at a pH higher than 5. In release experiments using Rhodamine B (Rh-B) as a model solute, the P(MAA-co-EGMA) hydrogels showed a pH-sensitive release behavior. At low pH (pH 4.0) a small amount of Rh-B was released while at high pH (PH 6.0) a relatively large amount of Rh-B was released from the hydrogels. (c) 2007 Wiley Periodicals, Inc. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | JOHN WILEY & SONS INC | - |
dc.subject | POLY(ETHYLENE GLYCOL)-CONTAINING HYDROGELS | - |
dc.subject | ORAL PROTEIN DELIVERY | - |
dc.subject | PHARMACEUTICAL APPLICATIONS | - |
dc.subject | INSULIN DELIVERY | - |
dc.subject | IN-VITRO | - |
dc.subject | ACID | - |
dc.subject | NANOSPHERES | - |
dc.subject | CALCITONIN | - |
dc.subject | POLYMERS | - |
dc.title | pH-sensitive swelling and release behaviors of anionic hydrogels for intelligent drug delivery system | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Bumsang | - |
dc.identifier.doi | 10.1002/app.26450 | - |
dc.identifier.scopusid | 2-s2.0-34547793093 | - |
dc.identifier.wosid | 000248320000064 | - |
dc.identifier.bibliographicCitation | JOURNAL OF APPLIED POLYMER SCIENCE, v.105, no.6, pp.3656 - 3661 | - |
dc.relation.isPartOf | JOURNAL OF APPLIED POLYMER SCIENCE | - |
dc.citation.title | JOURNAL OF APPLIED POLYMER SCIENCE | - |
dc.citation.volume | 105 | - |
dc.citation.number | 6 | - |
dc.citation.startPage | 3656 | - |
dc.citation.endPage | 3661 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Polymer Science | - |
dc.relation.journalWebOfScienceCategory | Polymer Science | - |
dc.subject.keywordPlus | POLY(ETHYLENE GLYCOL)-CONTAINING HYDROGELS | - |
dc.subject.keywordPlus | ORAL PROTEIN DELIVERY | - |
dc.subject.keywordPlus | PHARMACEUTICAL APPLICATIONS | - |
dc.subject.keywordPlus | INSULIN DELIVERY | - |
dc.subject.keywordPlus | IN-VITRO | - |
dc.subject.keywordPlus | ACID | - |
dc.subject.keywordPlus | NANOSPHERES | - |
dc.subject.keywordPlus | CALCITONIN | - |
dc.subject.keywordPlus | POLYMERS | - |
dc.subject.keywordAuthor | pH-sensitive | - |
dc.subject.keywordAuthor | anionic hydrogel | - |
dc.subject.keywordAuthor | pK(a) of hydrogel | - |
dc.subject.keywordAuthor | biological on-off switch | - |
dc.subject.keywordAuthor | intelligent drug delivery system | - |
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