Faculty of Pharmaceutical Sciences(Sawahara, Goto) School of Health Sciences, Kyushu University(Kinoshita) AN00054674 By using the double fluorescent labeling method of the previous report, the size of liposome entrapping carboxyfluorescein(CF), which was prepared by the sonification method, was compared with that of calcein(CAL). As a result, it was revealed that the size of CF-liposomes was
... [Show full abstract] always smaller than the size of CAL-liposomes in every preparations and the entrapment efficiencies of CF-liposomes were always lower than those of CAL-liposomes. The results obtained in this study suggest that the diameter and the entrapment effciency of lipospmes would be influenced by the molecular size and structure of drugs entrapped in liposomes. Therefore, it will be necessary to consider the above-mentioned evidence when liposomes are prepared and used for a drug delivery system(DDS).