The old saying "the dose makes the poison" also holds true for ultraviolet (UV) light. While UV light is essential for vitamin D production, it is also important in phototherapy, several industrial processes, and plant growth. ...
Optics & Photonics
Jul 22, 2024
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2
Scientists from Trinity, in collaboration with the Royal College of Surgeons in Ireland (RCSI), have developed special fluorescent, color-changing dyes that, for the first time, can be used to simultaneously visualize multiple ...
Biochemistry
Feb 15, 2024
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40
Bacteria of the genus Shigella, closely related to the well-known Escherichia coli, are the second most common cause of fatal bacterial diarrheal diseases, with over 200,000 victims worldwide every year. There are repeated ...
Cell & Microbiology
Jan 19, 2024
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1
Researchers from the University of Tsukuba have developed an advanced refrigerated storage technology that prolongs the fertilization capacity of chicken sperm by arresting the energy metabolism dynamics, achieved through ...
Biotechnology
Dec 22, 2023
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1
A molecular switch, or molecule that changes in response to varying environmental stimuli, has successfully modified the acidity of a zeolite catalyst to improve the yield of paraxylene from methanol in heterogeneous catalysis, ...
Analytical Chemistry
Sep 25, 2023
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30
Our body's fat metabolism plays a vital role in energy production in our body. A research team at the University of Basel, Switzerland, has discovered a molecular switch that regulates lipid metabolism in our cells. This ...
Cell & Microbiology
Jul 3, 2023
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12
Researchers have demonstrated a new material for single-molecule electronic switches, which can effectively vary current at the nanoscale in response to external stimuli. The material for this molecular switch has a unique ...
Analytical Chemistry
Jun 30, 2023
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89
Autophagy, or "self-eating", is an essential cellular quality control mechanism that clears the cell of protein aggregates and damaged organelles. This mechanism is inactive under normal conditions and only triggered upon ...
Cell & Microbiology
Feb 10, 2023
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51
In the inner ear, there are two different types of sensory cells that are responsible for hearing. An MHH research team has now identified the molecular switch for the formation of these inner and outer hair cells and thus ...
Cell & Microbiology
Jan 30, 2023
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85
Researchers at Tufts University School of Engineering have developed a way to detect bacteria, toxins, and dangerous chemicals in our environment using a biopolymer sensor that can be printed like ink on a wide range of materials, ...
Polymers
Jan 18, 2023
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116
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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