Preparation and characterization of three types of cefquinome-loaded microspheres. Issue 3 (3rd April 2017)

• Record Type: Journal Article
• Authors: Qu, Shaoqi; Dai, Cunchun; Qiu, Mei; Zhang, Ruili; Wang, Chunyuan; Cui, Liangliang; Hao, Zhihui
• Is Part Of: International journal of polymer analysis and characterization. Volume 22:Issue 3(2017)
• Page Start: 256
• Page End: 265
• Publication Date: 2017-04-03
• Subjects: Biopolymers and biodegradable polymers -- controlled release -- spray drying method; Polymers -- Analysis -- Periodicals; 547.705
• DOI: 10.1080/1023666X.2017.1283169
• Languages: English
• ISSNs: 1023-666X

Abstract

ABSTRACT: The polymers of poly (lactic- co -glycolic acid), gelatin, and ethyl cellulose were used to control the microscopic structure of microspheres prepared by spray drying. We investigated controlled release by varying material concentrations, sprayer inlet temperatures and air velocities, and optimized process parameters of yield, particle size, and distribution. Three types of polymeric microspheres with a mean particle size range of 13–25 µm were loaded with cefquinome and characterized. In vitro drug release studies determined that microspheres were the most suitable structures for controlling release due to their high entrapment capacities and release times greater than 24 h.