In-situ characterization of non-aqueous nano-dispersion systems（NANDS） by freeze-etching transmission electron microscope（FETEM） was reported.To improve just-for-once successive rate of specimen preparation and ge...In-situ characterization of non-aqueous nano-dispersion systems（NANDS） by freeze-etching transmission electron microscope（FETEM） was reported.To improve just-for-once successive rate of specimen preparation and get good characterization results,an improving specimen preparation method of freezing etching was developed.Size,distribution and morphology of NANDS were directly visualized.Some information of particle dispersion feature and particle density can also be obtained.Reproductivity of the FETEM characterization is excellent.Comparing with laser scattering method,which is liable to give positive error especially for small size particle anchoring disperser,FETEM characterization can give more accurate measurement of particle size.Moreover,FETEM can give dispersion feature of nanoparticle in non-aqueous medium.展开更多
The morphological changes of the tight junction of the alveolar epithelium andthe capillary endothelium of the lungs after blast injury in rats were studied with freeze-etching elec-tron microscopic technique.The resu...The morphological changes of the tight junction of the alveolar epithelium andthe capillary endothelium of the lungs after blast injury in rats were studied with freeze-etching elec-tron microscopic technique.The results were as follows:1.The number of the discontiuities,discontinuities per μm,irregularity,and展开更多
基金Funded by National Natural Science Foundation of China(No.50572121) Key Pre-research Foundation of Weapon and Equipment(No. 9140A27010206JB35)
文摘In-situ characterization of non-aqueous nano-dispersion systems（NANDS） by freeze-etching transmission electron microscope（FETEM） was reported.To improve just-for-once successive rate of specimen preparation and get good characterization results,an improving specimen preparation method of freezing etching was developed.Size,distribution and morphology of NANDS were directly visualized.Some information of particle dispersion feature and particle density can also be obtained.Reproductivity of the FETEM characterization is excellent.Comparing with laser scattering method,which is liable to give positive error especially for small size particle anchoring disperser,FETEM characterization can give more accurate measurement of particle size.Moreover,FETEM can give dispersion feature of nanoparticle in non-aqueous medium.
文摘The morphological changes of the tight junction of the alveolar epithelium andthe capillary endothelium of the lungs after blast injury in rats were studied with freeze-etching elec-tron microscopic technique.The results were as follows:1.The number of the discontiuities,discontinuities per μm,irregularity,and
