[Development of Silymarin nanocrystals lyophilized power applying nanosuspension technology].
OBJECTIVE
To prepare silymarin nanosuspension and lyophilized power for enhancing the dissilution of poorly soluble drugs.


METHODS
The precipitation technique was adapted to produce the silymarin nanosuspensions respectivly applying Tween 80, SDS and Poloxamer188 as stabilizers. The lyophilized formula contained 5% mannitol as cryoprotectant. Particle size, Polydispersity index and Zeta potential were detected by Mastersizer nano ZS (Malvern England). Morphological character was observed with Transmission Electron Microscopy. The product's structure was performed with X-ray diffractometer.


RESULTS
The silymarin nanosuspension was successfully prepared, in which the drug particle size was about 100-300 nm,and the particles had ball-like shape and good dispersive properties.


CONCLUSIONS
This study provided potential for the neotype dosage form development of the Chinese Traditional Medicine.
Institute of Chinese Materia Medica, Chinese Academy of Chinese Medical Science, Beijing 100700, China. zxy204@126.com
Xiaoyu
X
Zhao
Guohua
G
Wang
Baoxian
B
Zhang
Hui
H
Li
Qixia
Q
Nie
Chen
C
Zang
Xiaomei
X
Zhao
D002626:Chemistry, Pharmaceutical / Q000379:methods*; D005612:Freeze Drying; D053758:Nanoparticles / Q000737:chemistry*; D010316:Particle Size; D012838:Silymarin / Q000737:chemistry*; D012995:Solubility; D013535:Suspensions / Q000737:chemistry*
D012838:Silymarin; D013535:Suspensions