LIN Han CHEN Jie QI Haoling SHEN Li FAN Jinchen CAO Fangqi. Radiation synthesis of temperature-sensitive β-cyclodextrin-Grafted PEG/poly(N-isopropylacrylamide) hydrogels for drug delivery[J]. Nuclear techniques, 2009, 32(5): 375-378.
LIN Han CHEN Jie QI Haoling SHEN Li FAN Jinchen CAO Fangqi. Radiation synthesis of temperature-sensitive β-cyclodextrin-Grafted PEG/poly(N-isopropylacrylamide) hydrogels for drug delivery[J]. Nuclear techniques, 2009, 32(5): 375-378.DOI:
β-cyclodextrin(β-CD)-based water-soluble macromonomer(PEG-β-CD) was synthesized by reaction of β-CD with poly(ethylene glycol) diglycidyl ether(PEGDE).A novel temperature-sensitive hydrogel composed of PEG-β-CD and poly(N-isopropylacrylamide)(PNIPAAm) was prepared by E-beam irradiation.Compared with the normal PNIPAAm hydrogel
the obtained hydrogel had a high swelling ratio at room temperature and exhibited faster shrinking kinetics at temperature close to the lower critical solution temperature(LCST).5-fluorouracil(5-FU) was chosen as a model drug loaded into the hydrogels
and the release results showed the β-cyclodextrin-containing hydrogels prolonged the release time.