摘要
Based on the unique advantages of fluorescent silicon nanoparticles （SiNPs）, long circulation red blood cells （RBCs）, and anti-cancer drug molecules （i.e., doxorubicin （DOX））, we developed multifunctional DOX-loaded SiNPs impregnated into RBCs. Importantly, the resulting drug delivery systems （DDSs） simultaneously exhibited bright fluorescence coupled with robust photostability （i.e., - 24% loss of fluorescent intensity after 25 min continuous laser irradiation） and significantly lengthened blood residency （i.e., t1/2 = 7.31 ± 0.96 h, 3.9-fold longer than pure DOX-loaded SiNPs）. Therefore, this novel DDS featuring multi-functionalities shows high potential for cancer diagnosis and therapy, particularly for tumor imaging and chemotherapy in a synchronous manner.
Based on the unique advantages of fluorescent silicon nanoparticles （SiNPs）, long circulation red blood cells （RBCs）, and anti-cancer drug molecules （i.e., doxorubicin （DOX））, we developed multifunctional DOX-loaded SiNPs impregnated into RBCs. Importantly, the resulting drug delivery systems （DDSs） simultaneously exhibited bright fluorescence coupled with robust photostability （i.e., - 24% loss of fluorescent intensity after 25 min continuous laser irradiation） and significantly lengthened blood residency （i.e., t1/2 = 7.31 ± 0.96 h, 3.9-fold longer than pure DOX-loaded SiNPs）. Therefore, this novel DDS featuring multi-functionalities shows high potential for cancer diagnosis and therapy, particularly for tumor imaging and chemotherapy in a synchronous manner.
基金
We express our grateful thanks to Prof. Shuit-Tong Lee for general help and valuable suggestion. We appreciate financial support from the National Basic Research Program of China （No. 2013CB934400）, the National Natural Science Foundation of China （Nos. 61361160412 and 31400860）, and a project funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions （PAPD）, 111 Project as well as Collaborative Innovation Center of Suzhou Nano Science and Technology （NANO-CIC）.
