Zhao Xianying,Liu Yimin,Xiao Xiang,Li Haihong,Su Yongping,Li Mingchun.Applications of uniform design method in preparation of LIDA-PLGA sustained release nanospheres[J].J Amry Med Univ (J Third Mil Med Univ),2010,32(21):2300-2302.
Zhao Xianying,Liu Yimin,Xiao Xiang,Li Haihong,Su Yongping,Li Mingchun.Applications of uniform design method in preparation of LIDA-PLGA sustained release nanospheres[J].J Amry Med Univ (J Third Mil Med Univ),2010,32(21):2300-2302.DOI:
Objective To prepare the lidocaine-loaded nanospheres and study the effect of their pre-paration techniques on their drug encapsulation efficiency (DEE) and mean diameter (MD). Methods U
8
(8
5
)experiments were performed using the uniform design method for basic materials and their volume with the DEE and MD of nanospheres as evaluation indexes and lidocaine as a drug model. Then
optimal preparation technique parameters of nanospheres were detected. Results The optimal conditions for preparation of LID-PLGA nanospheres were as follows. The mass ratio of the main drug and its encapsulation substrate was 1∶6
the volume ratio of inner water phase was 8∶2
the concentration of PVA was 3.0%
the phacoemulsification time
was 6 min
and the stirring rate was 2 200 r/min. Conclusion Multiple secondary model established with uniform design method can rather accurately predict the basic characteristics of drug nanospheres.