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    Development and Characterization of Inkjet Printed Edible Films for Buccal Delivery of B-Complex Vitamins

    Year: 2020

    Journal: Pharmaceuticals, Volume 13, SEP

    Authors: Eleftheriadis, Georgios; Monou, Paraskevi Kyriaki; Andriotis, Eleftherios; Mitsouli, Elisavet; Moutafidou, Nikoleta; Markopoulou, Catherine; Bouropoulos, Nikolaos; Fatouros, Dimitrios

    Keywords: buccal delivery; inkjet printing; B-complex vitamins; thiamine hydrochloride; nicotinic acid; release

    Buccal films containing two vitamins, i.e., thiamine hydrochloride (THCl) and nicotinic acid (NA), were fabricated via two-dimensional (2D) inkjet printing. For the preparation of buccal films, solubility studies and rheological evaluations were conducted in distilled water and propylene-glycol (PG) as main solvent and viscosity/surface tension modifier, respectively. The increased solubility in the solvents' mixture indicated that manufacturing of several doses of the THCl and NA is achievable. Various doses were deposited onto sugar-sheet substrates, by increasing the number of printing passes. The physiochemical characterization (SEM, DSC, FTIR) revealed that inkjet printing does not affect the solid state of the matrix. Water uptake studies were conducted, to compare the different vitamin-loaded formulations. The in vitro release studies indicated the burst release of both vitamins within 10 min, a preferable feature for buccal administration. The in vitro permeation studies indicated that higher concentrations of the vitamins onto the sugar sheet improved the in vitro permeation performance of printed formulations.
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