Related topics: cells · protein · molecules

Manipulating electron spin using artificial molecular motors

Artificial molecular switches and machines have undergone rapid advances over the past several decades. Particularly, artificial molecular motors are highly attractive from the viewpoint of chirality switching during rotational ...

Environment turns molecule into a switch

It looks like a cross with four arms of equal length that have a central atom at their intersection. All atoms are arranged in one plane so that the molecule is absolutely planar – at least in the normal state.

How medicine literally gets under your skin

If drugs are to enter the body painlessly and efficiently, they can be administered via skin patches. Researchers at Empa and the University of Fribourg are currently developing nano-containers for therapeutic agents that ...

Chemists make bicycle-like molecular drive

Molecular cars have been known for some time, but scientists from the University of Amsterdam's Van 't Hoff Institute for Molecular Sciences (HIMS) and the University of Murcia have now synthesized molecules that operate ...

Reliable molecular toggle switch developed

Nanotechnology constantly allows for new records in miniaturization. Reduction of the dimension of electronic components, however, has physical limits that will be reached soon. Novel materials and components are required. ...

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Molecular switch

A molecular switch is a molecule that can be reversibly shifted between two or more stable states. The molecules may be shifted between the states in response to changes in e.g. pH, light, temperature, an electrical current, microenvironment, or the presence of a ligand. In some cases, a combination of stimuli are utilized. The oldest forms of synthetic molecular switches are pH indicators, which display distinct colors as a function of pH. Currently synthetic molecular switches are of interest in the field of nanotechnology for application in molecular computers. Molecular switches are also important to in biology because many biological functions are based on it, for instance allosteric regulation and vision. They are also one of the simplest examples of molecular machines.

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