Light-induced changes in photosensory proteins

Researchers from Charité - Universitätsmedizin Berlin have demonstrated on a molecular level how a specific protein allows light signals to be converted into cellular information. Their findings have broadened the understanding ...

Fast energy transport between unlike partners

Chemists from the University of Würzburg have combined different dye molecules in aggregates and thereby observed surprising properties. Their discovery may help to use sunlight more efficiently for the generation of energy.

The molecular breakdance of seeing

The detection of light by pigments in the retina, called rhodopsin or visual purple, leads to our sense of vision. New experiments by scientists from the Max Planck Institute for the Structure and Dynamics of Matter and the ...

Bringing fiber optics to electronic components

Fiber optics increased the speed and quantity of information that can be transmitted through the Internet by transforming electrical signals into pulsating light.

Organic chemistry: Leading light waves astray

The development of structured synthetic materials with unusual electromagnetic properties, so-called metamaterials, promises to provide access to special physical effects of great technological interest. Metamaterials have ...

Solar concentrator increases collection with less loss

(PhysOrg.com) -- Converting sunlight into electricity is not economically attractive because of the high cost of solar cells, but a recent, purely optical approach to improving luminescent solar concentrators (LSCs) may ease ...

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Chromophore

A chromophore is the part of a molecule responsible for its color. The color arises when a molecule absorbs certain wavelengths of visible light and transmits or reflects others. The chromophore is a region in the molecule where the energy difference between two different molecular orbitals falls within the range of the visible spectrum. Visible light that hits the chromophore can thus be absorbed by exciting an electron from its ground state into an excited state.

In biology, molecules that serve to capture or detect light energy, the chromophore is the moiety that causes a conformational change of the molecule when hit by light.

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