A new method for preliminary screening of anticancer drugs by Hadamard transform microscopic fluorescence image analysis was proposed. Rat liver 2c hepatocyte was usedas the standard cell and acridine orange (AO) was ...A new method for preliminary screening of anticancer drugs by Hadamard transform microscopic fluorescence image analysis was proposed. Rat liver 2c hepatocyte was usedas the standard cell and acridine orange (AO) was employed to trace the interaction of drugand cellular DNA. The results for five anticancer drugs, vincristine, cyclophosphamide,mustine, cis-platin and mitomycin-C are in accordance with the mechanism of the drugs binding to cellular DNA and this indicates that this method is suitable for screening cell cyclenonspecific anticancer drugs.展开更多
Zeta potential of PC and PC-Cholesterol liposome was measured by microelectrophoretic mobility in the presence of different types of electrolyte. A combination of GouyChapman-Stern theory and Poisson-Boltzmann equatio...Zeta potential of PC and PC-Cholesterol liposome was measured by microelectrophoretic mobility in the presence of different types of electrolyte. A combination of GouyChapman-Stern theory and Poisson-Boltzmann equation was used to describe the regularity of the dependence of Zeta potential on several cations and anions with different valencies. Interaction mechanism of cation, anion and cholesterol with PC polar head group was discussed. The electrostatic force is dominated in influencing the surface potential of liposome.展开更多
文摘A new method for preliminary screening of anticancer drugs by Hadamard transform microscopic fluorescence image analysis was proposed. Rat liver 2c hepatocyte was usedas the standard cell and acridine orange (AO) was employed to trace the interaction of drugand cellular DNA. The results for five anticancer drugs, vincristine, cyclophosphamide,mustine, cis-platin and mitomycin-C are in accordance with the mechanism of the drugs binding to cellular DNA and this indicates that this method is suitable for screening cell cyclenonspecific anticancer drugs.
文摘Zeta potential of PC and PC-Cholesterol liposome was measured by microelectrophoretic mobility in the presence of different types of electrolyte. A combination of GouyChapman-Stern theory and Poisson-Boltzmann equation was used to describe the regularity of the dependence of Zeta potential on several cations and anions with different valencies. Interaction mechanism of cation, anion and cholesterol with PC polar head group was discussed. The electrostatic force is dominated in influencing the surface potential of liposome.
