Molecular Machines Supermolecules that can Catch Objects, Move and Rotate

Molecular Machines - Supermolecules that can Catch Objects, 

Tweezers, scissors and screwdrivers are primitive tools compared to computers, but their importance and wide applicability to daily life cannot be ignored. Similarly, molecular scale mechanical devices would be very useful in nanotechnology. For example, a molecular robot that fabricates molecular wires and molecular machines that could penetrate deep inside the body would provide huge contribution in the fields of molecular electronics and medicine, respectively. 

A molecule that can be rotated to a particular direction by external stimuH is shown in Fig. 5.19. In this molecule, two of the same structures are connected through a double bond and the molecule has a twisted structure due to steric hindrance. Four steps involving light irradiation and thermal treatment 

Rotaxanes are unique supermolecules where cyclic molecules are threaded by linear molecules. They are powerful candidates for molecular machines. 

IwlTs r r rnanotechnology. Direct contact with the taxane molnr useful task. Mechanical control of a single ro- 

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Molecular Machines - Supermolecules that can Catch Objects, Move and Rotate 155... 

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