Artificial molecular-level machines

Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]
V Balzani, A Credi

Abstract

The concept of "machine" can be extended to the molecular level by designing supramolecular species capable of performing mechanical-like movements as a consequence of an appropriate energy supply. Molecular-level machines operate via electronic and nuclear rearrangements, for example, through some kind of chemical reaction. Like macroscopic machines, they are characterized by: (i) the kind of energy input supplied to make them work, (ii) the kind of movement performed by their components, (iii) the way in which their operation can be controlled and monitored, (iv) the possibility to repeat the operation at will and establish a cyclic process, (v) the time scale needed to complete a cycle of operation, and (vi) the function performed. A crucial issue is that concerning energy supply. Artificial machines powered by chemical energy ("fuels") produce waste products whose accumulation compromises the operation of the machine unless they are removed from the system. Photochemical and electrochemical energy inputs, however, can be used to make a machine work without formation of waste products. Examples of chemically, electrochemically, and photochemically powered machines investigated in our laboratory are reviewed, and future direc...Continue Reading

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Citations

Aug 13, 2008·Nanomedicine·Bi-Botti Celestin Youan
Feb 28, 2007·Physical Chemistry Chemical Physics : PCCP·Yanwei LiGeping Yin
Nov 30, 2006·Angewandte Chemie·Euan R KayFrancesco Zerbetto
Jul 5, 2012·Small·Barbara SaccàChristof M Niemeyer
Jun 24, 2010·Antioxidants & Redox Signaling·Alberto CrediMargherita Venturi
Mar 26, 2019·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·Shilin YuJean-Luc Pozzo

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