Abstract
In the past few years, an increasing number of in situ gel forming systems have been reported in the literature for various biomedical applications, including drug delivery, cell encapsulation, and tissue repair. The possible mechanisms that lead to in situ gel formation are solvent removal, ionic cross-linkage, light-sensitive, pH change and temperature modulation. The ability to inject a drug incorporated into a polymer to a localized site and have the drug from a semi-solid depot has a number of advantages. The advantages include ease of application, localized and prolonged drug delivery. For these reasons a large number of in situ setting polymeric delivery systems have been developed and investigated. This article reviews the stimuli-sensitive polymers and the use of these polymers in parenterals, ocular, peroral, rectal, vagina, nasal, dermal and transdermal drug delivery.
Keywords: In situ, gels, mucosa, drug delivery system, cell encapsulation, tissue repair, ionic cross-linkage, light-sensitive, semi-solid depot, stimuli-sensitive polymers
Current Drug Therapy
Title: In Situ Gels Based Drug Delivery Systems
Volume: 6 Issue: 3
Author(s): Madhugiri P. Venkatesh, Purohit K. Liladhar, Teggin M.P. Kumar and Hosakote G. Shivakumar
Affiliation:
Keywords: In situ, gels, mucosa, drug delivery system, cell encapsulation, tissue repair, ionic cross-linkage, light-sensitive, semi-solid depot, stimuli-sensitive polymers
Abstract: In the past few years, an increasing number of in situ gel forming systems have been reported in the literature for various biomedical applications, including drug delivery, cell encapsulation, and tissue repair. The possible mechanisms that lead to in situ gel formation are solvent removal, ionic cross-linkage, light-sensitive, pH change and temperature modulation. The ability to inject a drug incorporated into a polymer to a localized site and have the drug from a semi-solid depot has a number of advantages. The advantages include ease of application, localized and prolonged drug delivery. For these reasons a large number of in situ setting polymeric delivery systems have been developed and investigated. This article reviews the stimuli-sensitive polymers and the use of these polymers in parenterals, ocular, peroral, rectal, vagina, nasal, dermal and transdermal drug delivery.
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P. Venkatesh Madhugiri, K. Liladhar Purohit, M.P. Kumar Teggin and G. Shivakumar Hosakote, In Situ Gels Based Drug Delivery Systems, Current Drug Therapy 2011; 6 (3) . https://dx.doi.org/10.2174/157488511796392004
DOI https://dx.doi.org/10.2174/157488511796392004 |
Print ISSN 1574-8855 |
Publisher Name Bentham Science Publisher |
Online ISSN 2212-3903 |
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