4.7 Article

Thermoresponsive mucoadhesive hybrid gels in advanced drug delivery systems

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DOI: 10.1016/j.ijpharm.2023.122799

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Thermoresponsive; Mucoadhesive; Hydrogel Hybrids; Drug delivery system

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Thermoresponsive polymers have been widely used for the development of stimuli-responsive drug formulations in various routes of administration. However, their use has been limited by obstacles such as high polymer concentration, wide gelation temperature, low gel strength, poor mucoadhesiveness, and short retention. In-situ thermoresponsive mucoadhesive hydrogel blends or hybrids have been suggested as a solution to improve drug bioavailability and efficacy. This article highlights the development and assessment of such hydrogels in different administration routes.
Thermoresponsive polymers have seen extensive use in the development of stimuli-responsive drug formulations for oral, buccal, nasal, ocular, topical, rectal, parenteral, and vaginal routes of administration. Despite their great potential, their use has been limited by various obstacles, such as undesirable high polymer concentration, wide gelation temperature, low gel strength, poor mucoadhesiveness, and short retention. Mucoadhesive polymers have been suggested to improve the mucoadhesive features of thermoresponsive gels, leading to increased drug bioavailability and efficacy. This article highlights the use of in-situ thermoresponsive mucoadhesive hydrogel blends or hybrids that have been developed and assessed in various routes of administration.

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