Yang Wang

TL;DR: It is found that segmented nanorods with one Au end and one poly(pyrrole) end containing catalase, an enzyme that decomposes hydrogen peroxide nonelectrochemically, perform the overall catalytic reaction at a rate similar to that of nanorod containing Au and Pt segments, supporting the bipolar electrochemical propulsion mechanism for bimetallic nanorODs.

TL;DR: The findings indicate that the motion of PtAu nanorods in H2O2 is primarily due to a catalytically induced electrokinetic phenomenon and that other mechanisms, such as those related to interfacial tension gradients, play at best a minor role.

TL;DR: An ambient temperature stationary "pump" is reported that generates a proton concentration gradient through the bipolar electrochemical decomposition of hydrogen peroxide on patterned silver-gold surfaces that drives convective fluid flow and pattern formation of colloidal tracer particles at the microscopic level.

TL;DR: Trimetallic catalytic microrotors were fabricated by electrodeposition of cylindrical Au-Ru rods in the pores of anodic alumina membranes, dissolution of the template membrane, and then sequential vapor deposition of Cr, SiO(2), Cr, Au, and Pt on one side of each rod.

TL;DR: A novel microfluidic pumping system is presented which consists of spatially defined palladium features on a gold surface and which incorporates either hydrazine or N,N-dimethylhydrazine as fuel and by choosing the appropriate fuel it is possible to control the direction of pumping.