POLYIONIC COMPLEXES BASED ON ALGINATE AND CHITOSAN FOR THE CONTROLLED RELEASE OF CIPROFLOXACIN

被引：0

作者：

Novac, Ovidiu ^{[1
]}

Popa, Marcel Ionel ^{[1
]}

Aelenei, Nicolae ^{[1
]}

Melnig, Viorel ^{[2
]}

机构：

[1] Univ Tech Gh Asachi, Dept Chim Phys, Fac Ingn Chim & Protect Environm, Iasi 700050, Romania

[2] Alexandru Ioan Cuza Univ, Fac Phys, Dept Biophys, Iasi 700506, Romania

来源：

REVUE ROUMAINE DE CHIMIE | 2009年 / 54卷 / 07期

关键词：

GEL BEADS;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Two types of microparticles based on alginate and chitosan with encapsulated ciprofloxacine (CF) were prepared directly, by ionic exchange. The particles were characterized by FTIR spectroscopy and analyzed by termogravimetric techniques. The FTIR specters indicated the presence of the polymer-drug complex obtained via electrostatic interactions between polymer and ciprofloxacin ionized groups. Moreover, termogravimetric analysis showed a modified stability of the obtained complexes in comparison with the free drug and polymers. The release studies of ciprofloxacin from the two types of microparticles were carried out at different pH values between 2.13 and 10.80. The kinetic curves showed a complex behavior. The results of the release test for the two types of microparticles (chitosan/CF and alginate/CF) revealed that CF was totally released at pH=9.18 after 72 hours of elution.

引用

页码：539 / 544

页数：6

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