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|Title:||Smart polymeric nanofibers for topical delivery of levothyroxine|
|Source:||Azarbayjani, A.F.,Venugopal, J.R.,Ramakrishna, S.,Lim, P.F.C.,Chan, Y.W.,Chan, S.Y. (2010). Smart polymeric nanofibers for topical delivery of levothyroxine. Journal of Pharmacy and Pharmaceutical Sciences 13 (3) : 400-410. ScholarBank@NUS Repository.|
|Abstract:||Topical administration of levothyroxine (T4) helps to reduces deposits of adipose tissue on skin. The question is whether topical application of T4 could lead to systemic effects. In the present study a series of nanofibrous membranes were electrospun into blends of poly vinyl alcohol (PVA) and poly-Nisopropylacrylamide (PNIPAM) to develop a sustained topical delivery of T4. The polymeric nanofiber mats were characterized by field emission scanning electron microscopy (FESEM) and fourier transform infrared (FTIR) spectroscopy. In vitro permeation of the drug from the polymeric nanofibers was studied using excised human skin and the permeation mechanism investigated using confocal microscopy. It was observed that polymeric nanofibers were able to sustain the penetration of T4 to the skin and help maintain the effective drug concentration in the skin layers for prolonged period. These formulations may have potential uses in topical products and can help to increase the accumulation of the active compound on the skin surface thus minimize the adverse side effects which may be caused by systemic absorption. This may result in consumer compliance, avoid frequent dosing and enhance the therapeutic effectiveness.|
|Source Title:||Journal of Pharmacy and Pharmaceutical Sciences|
|Appears in Collections:||Staff Publications|
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