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- Title
Facile Fabrication of Composite Scaffolds for Long-Term Controlled Dual Drug Release.
- Authors
Li, Dawei; Li, Chao; Wang, Xing; Li, Chunlin; Sun, Tunan; Zhou, Jin; Li, Gang
- Abstract
Bone tuberculosis (TB) caused by mycobacterium tuberculosis continues to present a formidable challenge to humans. To effectively cure serious bone TB, a novel kind of composite scaffolds with long-term dual drug release behaviours were prepared to satisfy the needs of both bone regeneration and antituberculosis drug therapy. In virtue of an improved O/W emulsion technique, water-soluble isoniazid (INH)-loaded gelatin microparticles were obtained by tailoring the content of β-tricalcium phosphate (β-TCP), which played significant roles in INH entrapment efficiency and drug release behaviours. By mixing with the poly(ε-caprolactone)-block-poly (lactic-co-glycolic acid) (b-PLGC) solution containing oil-soluble rifampicin (RFP) via the particle leaching combined with phase separation technique, the dual drugs-loaded composite scaffolds were fabricated, which possessed interconnected porous structures and achieved the steady release of INH and RFP drugs for three months. Moreover, this dual drugs-loaded system could basically achieve their expectant roles of respective drugs without obvious influences with each other. This strategy on preparation of intelligent composite scaffolds with the multi-drugs loading capacity and controlled long-term release behaviour will be potential and promising substrates in clinical treatment of bone tuberculosis.
- Subjects
CONTROLLED release drugs; ISONIAZID; ANTITUBERCULAR agents; MYCOBACTERIUM tuberculosis; DRUG therapy
- Publication
Advances in Polymer Technology, 2020, p1
- ISSN
0730-6679
- Publication type
Academic Journal
- DOI
10.1155/2020/3927860