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Helical micro/nanomotors (MNMs) can be propelled by external fields to swim through high viscous fluids like complex biological environment, which promise miniaturized robotic tools to perform assigned tasks at small scales. However, catalytic propulsion method, most widely adopted to drive MNMs, is seldom studied to actuate helical MNMs. Herein we report catalytic helical carbon MNMs (CHCM) by sputtering Pt onto helical carbon nano-coils (HCNC) that is in bulk prepared by a thermal chemical vapor deposition method. The Pt-triggered H2O2 decomposition can drive the MNMs by electrokinetic mechanism. The MNMs demonstrate versatile motion behaviors including both directional propulsion and rotation subjecting to the turn number of the carbon helix. Besides, due to the ease of surface functionalization on carbon and other properties such as biocompatibility and photothermal effect, the helical carbon MNMs promise multifunctional applications for biomedical or environmental application.
This article was published in the following journal.
Name: Chemistry, an Asian journal
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A CALCIUM and CALMODULIN-dependent serine/threonine protein phosphatase that is composed of the calcineurin A catalytic subunit and the calcineurin B regulatory subunit. Calcineurin has been shown to dephosphorylate a number of phosphoproteins including HISTONES; MYOSIN LIGHT CHAIN; and the regulatory subunits of CAMP-DEPENDENT PROTEIN KINASES. It is involved in the regulation of signal transduction and is the target of an important class of immunophilin-immunosuppressive drug complexes.
A disease of the eye in which the eyelashes abnormally turn inwards toward the eyeball producing constant irritation caused by motion of the lids.
Stable carbon atoms that have the same atomic number as the element carbon, but differ in atomic weight. C-13 is a stable carbon isotope.
An isoform of DNA that occurs in an environment rich in SODIUM and POTASSIUM ions. It is a right-handed helix with 11 base pairs per turn, a pitch of 0.256 nm per base pair and a helical diameter of 2.3 nm.
The most common form of DNA found in nature. It is a right-handed helix with 10 base pairs per turn, a pitch of 0.338 nm per base pair and a helical diameter of 1.9 nm.
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