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Biofunctional textiles are materials with new properties and added value. In this work, emphasis was placed on the release capacity of the active principle (caffeine) from the formulation or from the biofunctional textile. In addition, a new in vitro methodology of percutaneous absorption was designed to demonstrate the delivery of encapsulated caffeine from the biofunctional textile to the different skin layers. In the first step, permeation studies through a nylon membrane were performed and the release capacity of caffeine present in the samples was quantified. In the second step, it was possible to detect the presence of caffeine in the different layers of the skin, while maintaining a close contact between the biofunctional textile and the skin by using pressure during the percutaneous absorption test. The new system is satisfactory for measuring the pass of the active principle from the biofunctional textile to the different skin layers.
CitationRubio, L. [et al.]. Skin delivery of caffeine contained in biofunctional textiles. "Textile Research Journal", 28 Gener 2010, vol. 80 (12), p. 1214-1221.
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