Polymer release system

Wells MC, Wick LY, Harms H. (2005). A model polymer release system study of PAH bioaccessibUity The relationship between rapid release and bioaccessibility. Environmental Science Technology 39 1055—1063. 

M. Rosoff, ed.. Controlled Release of Drugs, Polymers andMggregate Systems, VCH Pubhshers, Inc., New York, 1989. 

CappeUo J., Crissman J.W., Crissman M., Ferrari F.A., Textor G., WaUis O., Whitledge J.R., Zhou X., Butman D., Auketman L., and Stedronsky E.R. In-situ self-assembling protein polymer gel systems for administration, deUvety, and release of drugs, J. Contr. Rel., 53, 105, 1998. 

FIGURE 4 Controlled release systems based on lactide/glycolide polymers with duration of action of a few days to 1 year. 

HB Rosen, J Kohn, K Leong, R Langer. Bioerodible polymers for controlled release systems. In DST Hsieh, ed. Controlled Release Systems Fabrication Technology, Vol n. Boca Raton, FL CRC Press, 1988, pp 83-110. 

Fig. 2. Schematic representation of the behavior of a one-dimensional swelling controlled release system. The water (W) penetrates the glassy polymer (P) to form a gel. The drug (D) is released through the swollen layer.

Controlled drug delivery, membrane technology in, 15 847-848 Controlled drug release formulations (CDRFs), 9 51, 55 polymers in, 9 71-73 Controlled drug release systems, 9 50-51 design, 9 51-52 development, 9 55-57 intelligent, 9 56-57 in market, 9 83—85... 

In pigment printing the dyestuff pigments are bound to the textile by means of a polymer binder system and no additional washing is performed however, wastewater is released from the cleaning of the equipment and machinery. 

A host of bioadhesive controlled release systems have been proposed in recent years. Among the most commonly studied applications of bioadhesive materials is the area of buccal controlled delivery [408], The buccal delivery of small peptides from bioadhesive polymers was studied by Bodde and coworkers [409], and a wide range of compositions based on poly(butyl acrylate) and/or poly(acrylic acid) gave satisfactory performance. Bioadhesive poly(acrylic add)-based formulations have also been used for oral applications [402,410] for the sustained delivery of chlorothiazide [410] and for a thin bioadhesive patch for treatment of gingivitis and periodontal disease [411]. Other bioadhesive applications of polyelectrolytes include materials for ophthalmic vehicles [412,413], and systems for oral [410,414,415-419], rectal [420,421] vaginal [422] and nasal [423] drug delivery. 

---