Avtor/Urednik     Abletshauser, C; Rupprecht, H
Naslov     Self supporting polymer films crosslinked "in situ" by simultaneous spraying of component solutions. 1. Characterization and drug diffusion
Tip     članek
Vir     Farm Vestn
Vol. in št.     Letnik 45, št. 4
Leto izdaje     1994
Obseg     str. 297-309
Jezik     eng
Abstrakt     Self supporting insoluble polymer films were characterized. They are produced by "in situ" crosslinking during simultaneous spraying of aqueous polymer and crosslinking agent solution. Monofilms consist of calcium-alginate, chitosanalginate, methyl cellulose-tannin, and methylhydroxypropyl cellulose (MHTC)-tannin, respectively. Mixed films consist of calcium alginate and MHPC-tannin. The influence of nature and amount of crosslinking agents and the ratio of components in mixed films on swelling, disintegration and dissolution, as well as on drug (acetaminophen) diffusion through the polymer films was evaluated in water, artificial gastric, and artificial intestinal fluid. Most promising features for drug release control show mixed films composed of calcium-alginate and MHPC-tannin.
Deskriptorji     POLYMERS
DRUG DELIVERY SYSTEMS
ALGINATES
METHYLCELLULOSE
DIFFUSION
CALCIUM
TANNINS