Corrosion of light powered Pt/TiO2 microrobots

Self-Propelled Activated Carbon Micromotors for “On-the-Fly” Capture of Nitroaromatic Explosives

“…The results show that it is possible to obtain an adsorption efficiency higher than 50% up to three subsequent cycles (Figure B). The decrease in adsorption for the last cycle can be related to the corrosion of Pt, leading to diminished decomposition reaction for H 2 O 2 and difficulties in regenerating a highly interconnected porous adsorbent. , To investigate the usability of Pt/AC micromotors safely in water-treatment applications, we measure H 2 O 2 concentration in solutions (Figure S5) because of its harmful effects at high concentrations. Before the treatment with Pt/AC micromotors, the solution exhibits a H 2 O 2 concentration of approximately 10.000 ppm.…”

Microscopic Cascading Devices for Boosting Mucus Penetration in Oral Drug Delivery—Micromotors Nesting Inside Microcontainers

“…MM motion can be caused by external stimuli or chemical reactions. [34][35][36][37][38] External stimulidependent MMs, use the energy provided via infrared light, [39] ultraviolet light, [40] magnetic force, [41] or ultrasound [42] to enable their motion. Self-propelled MMs, have been studied the most as these MMs are not dependent on external energy, instead taking advantage of bubble propulsion, self-electrophoresis, self-diffusiophoresis, or the Marangoni effect.…”

Bubble-propelled plasmon-reinforced Pt-ZnIn2S4 micromotors for stirring-free photocatalytic water purification

“…Besides, the light corrosion phenomenon is prone to occur, resulting in a limited life span, i.e., loss of motion ability and death. 15,16 Hence, it is not practical to employ light-driven micromotors for real water purification with complex components.…”

“…, loss of motion ability and death. 15,16 Hence, it is not practical to employ light-driven micromotors for real water purification with complex components.…”