Effect of polymer crystallinity on papaverine release from poly (L- lactic acid) matrix

Journal of Controlled Release

Volumn 49, Issue 2-3, 1997, Pages 207-215

  Miyajima, Makoto ^a   Koshika, Akiko ^a   Okada, Jun'Ichi ^a   Ikeda, Masaru ^a   Nishimura, Kenji ^a  

^a DAIICHI SANKYO CO   (Japan)

Author keywords

Biodegradable polymer; Crystallinity; Diffusion controlled release; Papaverine; Poly (L lactic acid)

Indexed keywords

PAPAVERINE; POLYMER;

ARTICLE; BIODEGRADATION; DRUG DIFFUSION; GEL PERMEATION CHROMATOGRAPHY; PHYSICAL PHENOMENA; PRIORITY JOURNAL; PROTEIN STRUCTURE; SCANNING ELECTRON MICROSCOPY; X RAY DIFFRACTION;

EID: 0031447113     PISSN: 01683659     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0168-3659(97)00081-3     Document Type: Article

References (23)

1. Kulkarni R.K., Pani K.C., Neuman C., Leonard F. Polylactic acid for surgical implants. Arch. Surg. 93:1966;839-843.
2. Jalil R., Nixon J.R. Biodegradable poly(lactic acid) and Poly(lactide-co-glycolide) microcapsules: problems associated with preparative techniques and release properties. J. Microencapsulation. 7:1990;297-325.
3. Ogawa Y., Yamamoto M., Takada S., Okada H., Shimamoto T. Controlled-release of leuprolide acetate from polylactic acid or copoly(lactic/glycolic) acid microcapsules: influencing of molecular weight and copolymer ratio of polymer. Chem. Pharm. Bull. 36:1988;1502-1507.
4. Shah S.S., Cha Y., Pitt C.G. Poly(glycolic acid-co-DL-lactic acid): diffusion or degradation controlled drug delivery? J. Control. Release. 18:1992;261-270.
5. Hsu Y.Y., Gresser J.D., Trantolo D.J., Lyons C.M., Gangadharam P.R.J., Wise D.L. In vitro controlled release of isoniazid from poly(lactide-co-glycolide) matrices. J. Control. Release. 31:1994;223-228.
6. Wada R., Hyon S.-H., Ikada Y. Kinetics of diffusion-controlled drug release enhanced by matrix degradation. J. Control. Release. 37:1995;151-160.
7. Omelczuk M.O., McGinity J.W. The influence of polymer glass transition temperature and molecular weight on drug release from tablets containing poly(DL-lactic acid). Pharmacol. Res. 9:1992;26-32.
8. Heya T., Okada H., Ogawa Y., Toguchi H. Factors influencing the profiles of TRH release from copoly(DL-lactic/glycolic acid) microspheres. Int. J. Pharm. 72:1991;199-205.
9. Bodmer D., Kissel T., Traechslin E. Factors influencing the release of peptides and proteins from biodegradable parenteral depot systems. J. Control. Release. 21:1992;129-138.
10. Cha Y., Pitt C.G. The acceleration of degradation-controlled drug delivery from polyester microspheres. J. Control. Release. 8:1989;259-265.
11. Izumikawa S., Yoshioka S., Aso Y., Takeda Y. Preparation of poly(L-lactide) microspheres of different crystalline morphology and effect of crystalline morphology on drug release rate. J. Control. Release. 15:1991;133-140.
12. Weidinger A., Hermans P.H. On the determination of the crystalline fraction of isotactic polypropylene from X-ray diffraction. Makromol. Chem. 50:1961;98-115.
13. Okada H., Doken Y., Ogawa Y., Toguchi H. Preparation of three-month depot injectable microspheres of leuprorelin acetate using biodegradable polymers. Pharmacol. Res. 11:1994;1143-1147.
14. Asano M., Fukuzaki H., Yoshida M., Kumakura M., Mashimo T., Yuasa H., Imai K., Yamanaka H., Kawaharada U., Suzuki K. In vivo controlled release of a luteinizing hormone-releasing hormone agonist from poly(DL-lactic acid) formulations of varying degradation pattern. Int. J. Pharm. 67:1991;67-77.
15. Park T.G. Degradation of poly(DL-lactic acid) microspheres: effect of molecular weight. J. Control. Release. 30:1994;161-173.
16. R.W. Baker, Diffusion controlled systems, in Controlled Release of Biologically Active Agents, Wiley-Interscience, New York, 1987, pp. 39-83.
17. Ritger P.L., Peppas N.A. A simple equation for description of solute-release. I. Fickian and non-Fickian release from non-swellable devices in the form of slabs, spheres, cylinders or discs. J. Control. Release. 5:1987;23-36.
18. Pistner H., Bendix D.R., Mühling J., Reuther J.F. Poly(L-lactide): a long-term degradation study in vivo. Part III. Analytical characterization. Biomaterials. 14:1993;291-298.
19. Li S.M., Garreau H., Vert M. Structure-property relationships in the case of the degradation of massive poly(α-hydoxy acids) in aqueous media. Part 3. Influence of the morphology of poly(L-lactic acid). J. Mater. Sci. Mater. Med. 1:1990;198-206.
20. Mauduit J., Bukh N., Vert M. Gentamycin/poly(lactic acid) blends aimed at sustained release antibiotic therapy administered per-operatively. II. The case of gentamycin sulfate in high molecular weight poly(DL-lactic acid) and poly(L-lactic acid). J. Control. Release. 23:1993;221-230.
21. C.E. Rogers, Permeation of gases and vapours in polymers, in: J. Comyn, (Ed.), Polymer Permeability, Elsevier Applied Science, London, 1985, pp. 11-74.
22. Takeshima K., Sunagawa N., Nagata S., Hirano K., Takagishi Y. Effect of morphological properties on drug release from biodegradable microspheres. Yakugaku Zasshi. 112:1992;203-210.
23. Leenslag J.W., Pennings A.J., Bos R.R.M., Rozema F.R., Boering G. Resorbable materials of poly(L-lactide). VI. Plates and screws for internal fracture fixation. Biomaterials. 8:1987;70-73.