Influencing intramolecular motion with an alternating electric field

Article Abstract:

Research is presented concerning the attempted formation of mechanical device analogues which operate as brakes, shuttles, turnstiles, ratchets and spinning motors through the use of nanotechnology. Attempts to influence intramolecular motion with an electric field are discussed.

Letter to the Editor, Hydrogen bonding, Hydrogen bonds, Dioxane

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Unidirectional rotation in a mechanically interlocked molecular rotor

Article Abstract:

Research demonstrates induction of sequential and unidirectional rotation in mechanically interlocked assemblies consisting of small rings moving around one larger ring. The small rings move in discrete steps between binding sites on the larger ring. The movement is driven by light, heat or chemical stimuli.

United Kingdom, Italy, Analysis, Design and construction, Molecular rotation, Mechanical properties, Binding proteins, Rotors, Catenanes

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Lighting up nanomachines

Article Abstract:

Photochemical experiments on an artificial machine that uses light to displace a fragment of its unimolecular structure are described. Balzani and colleagues' latest photochemical experiments represent a fascinating advance in understanding of how a charge-separated state could be used to bring about a nuclear displacement in a unimolecular machine.

United States, Science & research, Photochemistry

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