Optimization of the NDV-N-2-HACC/CMC microspheres preparation

Purpose:in this study, the conditions of the preparation of NDV-N-2-HACC/CMC microspheres are optimized. Methods:Using entrapment efficiency, particle size, Zeta potential as the evaluating indicators, 3 main factors to influence the preparation for microspheres were optimized by orthogonal factorization method. Result:The optimal conditions were 1.0 mg/ml HACC, 1.2 mg/ml CMC, 1:3 (v/v) NDV/HACC, and 1200 r/min and 30 min for stirring. The range of particle size was 192.1-595.2 nm, and average size was 304.3 nm. Zeta potential was +32.50 mV; encapsulation efficiency (EE) was (98.96±2.1) %.Conclusion:the conditions of the preparation of NDV-N-2-HACC/CMC microspheres are optimized. © (2013) Trans Tech Publications, Switzerland.