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http://dx.doi.org/10.5012/jkcs.2013.57.5.634

Preparation of Gold Coated Liposomes for CT Contrast Medium  

Wee, Tae In (Research Center for Medicinal Chemistry, Division of Drug Discovery Research, Korea Research Institute of Chemical Technology)
Jeon, Ye Won (Research Center for Medicinal Chemistry, Division of Drug Discovery Research, Korea Research Institute of Chemical Technology)
Cho, Young Jae (Department of Obsterics & Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Cho, Sung Keun (Research Center for Medicinal Chemistry, Division of Drug Discovery Research, Korea Research Institute of Chemical Technology)
Ha, Jeung (Research Center for Medicinal Chemistry, Division of Drug Discovery Research, Korea Research Institute of Chemical Technology)
Lee, Jeong Won (Department of Obsterics & Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Cho, Sun Hang (Research Center for Medicinal Chemistry, Division of Drug Discovery Research, Korea Research Institute of Chemical Technology)
Han, Hee Dong (Department of Immunology, School of Medicine, Konkuk University)
Shin, Byung Cheol (Research Center for Medicinal Chemistry, Division of Drug Discovery Research, Korea Research Institute of Chemical Technology)
Publication Information
Abstract
The use of medical imaging has been increased for diagnosis of cancer or vessel disease. Among the medical imaging, computed tomography (CT) is one of the popular methods, however, which should need administration of contrast medium. Therefore, we developed gold coated liposomes (GCL) as a contrast medium. To coat gold on the liposomal surface, positive charged liposomes was prepared and then negative $Au^-$ can coat on the liposomal surface by electronic interaction. The size of GCL was $154.8{\pm}9.2$ nm and surface charge was $27{\pm}3.2$ mV, respectively. The morphology of GCL was confirmed by electron microscopy (SEM) and transmission electron microscopy (TEM). The coating efficiency of gold was 18%. Chemical procedure for gold coating on liposomal surface was not toxic for cell cytotoxicity by MTT assay. Finally, we demonstrated attractive CT image for GCL. Taken together, the GCL would be useful for various vessel related disease as a contrast medium.
Keywords
Gold; Liposomes; Contrast medium; CT;
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