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Molecular motors are natural (biological) or artificial molecular machines that are the essential agents of movement in living organisms. In general terms, a motor is a device that consumes energy in one form and converts it into motion or mechanical work ; for example, many protein -based molecular motors harness the chemical free energy ...
The prototype of a chemically driven rotary molecular motor by Kelly and co-workers. The motor by Kelly and co-workers is an elegant example of how chemical energy can be used to induce controlled, unidirectional rotational motion, a process which resembles the consumption of ATP in organisms in order to fuel numerous processes. However, it ...
The first example of an artificial molecular machine (a switchable molecular shuttle). The positively charged ring (blue) is initially positioned over the benzidine unit (green), but shifts to the biphenol unit (red) when the benzidine gets protonated (purple) as a result of electrochemical oxidation or lowering of the pH .
Many of these molecular motors are ubiquitous in both prokaryotic and eukaryotic cells, although some, such as those involved with cytoskeletal elements or chromatin, are unique to eukaryotes. The motor protein prestin, [14] expressed in mammalian cochlear outer hair cells, produces mechanical amplification in the cochlea. It is a direct ...
Synthetic molecular motor; T. Technomimetics This page was last edited on 21 March 2013, at 07:01 (UTC). Text is available under the Creative Commons ...
President-elect Donald Trump could be in a position to select the government’s top ethics czar when he assumes office in January – after a key ally in the Senate blocked President Joe Biden ...
Kate Middleton rounded out the list at number 10, managing 11 engagements this year. Despite an 88% decrease, her commitment remains evident as she balanced royal duties with health-focused downtime.
Easily the most important examples are biological motors such as bacteria and any other self-propelled cells. Synthetically, researchers have exploited oxidation-reduction reactions to produce chemical gradients, local fluid flows, or streams of bubbles that then propel these micromotors through chemical media. [2]