عنوان مقاله [English]
Synthetic micro/nanomotors are functionalized micro/nanoparticles with the ability of self-propelling motion. Synthetic micro/nanomotors are the mimic of mobile organisms like bacteria in nature. Micro/nanomotors have different types such as fuel required micro/nanomotors and fuel-less ones and various applications too. Fuel-less micro/nanomotors move through environmental changes like increasing in temperature by heating, magnetic and ultrasonic fields, etc. Platinum-based micro/nanomotors are the most common types of micro/nanomotors. Hydrogen peroxide is the fuel utilized in platinum-based micro/nanomotors. The decomposition of hydrogen peroxide fuel on the platinum surface of synthetic micro/nanomotors, supplies the required energy for motion of motors. Platinum-based micro/nanomotors have different structures and geometrics include spherical, stomatocyte, rod, tubular and shell that that creates various motion mechanisms and speeds. The motion speed of micro/nanomotors has a wide range of amounts from one micrometer per second to hundreds micrometers per second. In this review, platinum-based micro/nanomotors and different types of them have introduced. In addition, different mechanisms of motion include self-electrophoresis, self- diffusiophoresis and bubble-propulsion mechanisms have discussed. Then, speed of motion in various motion mechanisms has reviewed. In addition, the applications of micro/nanomotors and the existing challenge in using of micro/nanomotors at in vivo conditions have mentioned.