M Shahnawaz Khan
National Sun Yat-Sen University, Taiwan
Title: Graphene oxide and gold nanorods conjugate for controlled release of doxorubicin by using 808 nm laser
Biography
Biography: M Shahnawaz Khan
Abstract
Graphene oxide (GO), a close derivative of graphene has unlocked many pivotal steps in drug delivery due to their inherent biocompatibility, heavy drug loading capacity and high aqueous solubility. We used a novel plant material called Gum arabic (GA) to increase the solubility of GO as well as to chemically reduce it in the solution. GA functionalized GO (fGO) exhibited increased absorption in near infra-red region (NIR) which was exploited in photothermal therapy for cancer. To augment the shape and size related problems of GO (which in turn affect their rheological properties), we have conjugated them with gold nanorods (GNRs) using in situ synthesis of GO@GNRs via seed mediated method. To the above conjugate, Doxorubicin (DOX) was attached at ambient temperature (28±2°C). Release kinetics of DOX with and without NIR exposure was also studied followed by in vitro photothermal killing of A549 cell lines. Enhanced NIR induced drug release as well photothermal property was observed which makes fGO@GNRs-DOX ideal for chemotherapy as well as photothermal therapy.