Applying hydrostatic pressure as an external stimulus, Tokyo Tech and Keio University researchers demonstrate a new way to regulate singlet fission (SF), a process in which two electrons are generated from a single photon, ...
Analytical Chemistry
Mar 23, 2023
0
105
When scientists develop new optical techniques and instruments for medical diagnosis, surgery, or light-based therapy, those techniques and instruments must be validated and calibrated through extensive testing. The test ...
Optics & Photonics
Feb 21, 2023
0
52
The structure of the "antenna" that a blue-green alga uses to harvest light has been determined by RIKEN researchers and compared with those of four other species. In addition to providing clues about the evolution and diversity ...
Cell & Microbiology
Oct 28, 2022
0
141
New research introduces a simple way to determine the temperature of a stored biomolecule and assess how it changes overtime.
Biotechnology
Jun 28, 2022
0
35
Fluorescent proteins, especially green fluorescent protein (GFP), can act as the light-responsive element that transduces events through to electrically conductive transducers, such as single-walled carbon nanotubes (SWCNTs) ...
Nanomaterials
Mar 9, 2022
0
23
Light-driven molecular motors have been around for over 20 years. These motors typically take microseconds to nanoseconds for one revolution. Thomas Jansen, associate professor of physics at the University of Groningen, and ...
Materials Science
Jun 18, 2021
4
161
Scientists have for the first time "unmixed" the black pigment that colors our skin and gives bananas their spots.
Analytical Chemistry
Dec 19, 2019
1
6
The sequence of changes that light triggers in a bacterial photoreceptor starts with its protein scaffolding rather than the light-absorbing chromophore, an all-RIKEN team has shown. This finding goes against conventional ...
Biochemistry
Nov 29, 2019
0
5
Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have doubled the efficiency of a chemical combo that captures light and splits water molecules so the building blocks can be used to produce hydrogen ...
Materials Science
Nov 4, 2019
1
212
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 ...
Cell & Microbiology
Dec 4, 2018
0
62
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.
This text uses material from Wikipedia, licensed under CC BY-SA
