tailieunhanh - 5-Fluororacil loading and releasing behavior from alkylated polyamidoamine G3.0 dendrimer-folate

In recent years, many researches have been developing towards biocompatible improvement and cellular penetrating ability of dendrimers in order to use in diagnosis and treatment therapy for several type of cancer. In this study, to enhance biocompatibility, drug loading efficiency and cellular uptake of the polyamidoamine dendrimer, the dendrimer generation (G ) was conjugated with hexanoyl chloride and targeted with acid folic (). | Journal of Thu Dau Mot University No 2 21 - 2015 5-FLUORORACIL LOADING AND RELEASING BEHAVIOR FROM ALKYLATED POLYAMIDOAMINE DENDRIMER-FOLATE Nguyen Thi Bich Tram 1 Nguyen Phuc Thinh 2 Nguyen Cuu Khoa 3 Tran Ngoc Quyen 3 1 Thu Dau Mot University 2 Can Tho University 3 Institute of Applied Materials Science VAST ABSTRACT In recent years many researches have been developing towards biocompatible improvement and cellular penetrating ability of dendrimers in order to use in diagnosis and treatment therapy for several type of cancer. In this study to enhance biocompatibility drug loading efficiency and cellular uptake of the polyamidoamine dendrimer the dendrimer generation G was conjugated with hexanoyl chloride and targeted with acid folic . The structure of the was determined by 1H-NMR. According to 1H-NMR spectra 9 hexanoyl groups and 2 folate groups were attached to the dendrimer. TEM image of dendrimer exhibited spherical shape and nano sizes ranging from 3 to 4 nm and TEM image of the indicated a size distribution ranging from 5 to 7 nm. In addition Fluorouracil 5-FU -loaded and 5-FU-loaded were also prepared to evaluate drug loading efficiency was using High-performance liquid chromatography HPLC . The obtained results indicated that drug loading efficiency of 13 8 of 5-FU is higher than 11 of 5-FU . 5- also showed a slow release profile of the drug. These positive results show a potential of the drug-nanocarrier system in practical application. Keywords Alkylated dendrimer 5-FU drug delivery. dendrimer which is one of the most studied dendritic nanopolymers with internal cavities that can be ultilized as a novel nanocarrier for dilivering anticancer drug because drugs can be encapsulated via non- covalent interactions resulting in decreasing its side effects 2-3 . Polyamidoamine PAMAM dendrimer is the most well known nanopolymer that can be synthesized with .

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