Nano-graphene oxide-UCNP-Ce6 covalently constructed nanocomposites for NIR-mediated bioimaging and PTT/PDT combinatorial therapy

作者：Gulzar, Arif^*; Xu, Jiating; Yang, Dan; Xu, Liangge; He, Fei; Gai, Shili; Yang, Piaoping

来源：Dalton Transactions, 2018, 47(11): 3931-3939.

DOI：10.1039/c7dt04141a

• UP-CONVERSION NANOPARTICLES
• NEAR-INFRARED LIGHT
• LANTHANIDE-DOPED NANOCRYSTALS
• TARGETED PHOTOTHERMAL THERAPY
• PHOTODYNAMIC THERAPY
• IN-VIVO
• CANCER-THERAPY
• UPCONVERTING NANOPARTICLES
• DRUG-DELIVERY
• OXIDE

NIR light-induced imaging-guided cancer therapy is an encouraging route in the cancer theranostic field. Herein, we describe a novel nanoscale proposal, which is established by covalently implanting core-shell structured upconversion nanoparticles (UCNPs) with nanographene oxide (NGO) by a process utilizing polyethylene glycol (PEG), and consequently loading Chlorin e6 (Ce6) onto the surface of NGO. The acquired NGO-UCNP-Ce6 (NUC) nanocomposites can not only be employed as upconversion luminescence (UCL) imaging probes of cells and whole-body animals with high contrast for diagnosis, but also can generate reactive oxygen species (ROS) under 808 nm light excitation for photodynamic therapy (PDT); over and above, they can swiftly and proficiently translate the 808 nm photon into thermal energy for photothermal therapy (PTT). An extraordinarily enhanced and synchronized therapeutic effect paralleled to the individual PTT or PDT is achieved, rendering extraordinary therapeutic effectiveness for cancer treatment. Consequently, profiting from this inimitable multifunctional nanohybrid, the NUCs synthesized here are encouraging as a cohesive theranostic probe for impending UCL imaging-guided combinatorial PDT/PTT.

• 出版日期2018-3-21
• 单位哈尔滨工程大学