Bubble-propelled micro-/nanomotors of variable sizes by regulating the surface microstructure of partially coated Pt shells

Abstract

Bubble-propelled micro-/nanomotors (MNMs) have a strong propulsive force that allows them to operate in harsh environments. However, the current MNMs with size less than 1 μm are difficult to exhibit...

New synthetic strategy toward a natural enzyme–nanozyme hybrid dual-function nanomotor and its application in environmental remediation

“…Li et al developed a nanoparticle partially covered with Pt-shells, which exhibited a self-diffusiophoresis phenomenon at low concentrations of H 2 O 2 and was dominated by bubble propulsion at high concentrations of H 2 O 2 . 14 In addition, the main preparation methods of nanomotors include physical vapor deposition, 15 convoluted methods 16 and template-assisted methods. 17 A variety of nanomotors have been reported, including tubular, spherical and other irregular structures.…”

Bioinspired Self‐Propelled Micromotors with Improved Transport Efficiency in the Subsurface Environment for Soil Decontamination

“…[ 14 ] The bubble propulsion of most reported micro/nanomotors either relies on catalytic reactions by noble metals (Pt, Ag, Pd) and biological enzymes, or non‐catalytic reactions consuming zinc and magnesium, [ 15 ] which is not suitable for scalable batch production and large‐scale environmental applications. [ 16 ] Therefore, the use of readily available cost‐effective materials, as well as simple preparation methods is necessary to achieve the real application of micro/nanomotors in soil remediation. Previous studies have proven the self‐driven motion and abundant bubble formation of micro/nanomotors can strengthen fluid mixing and intensify the mass transfer in the aqueous environment, which would greatly enhance the degradation efficiency of pollutants in water treatment.…”