Related topics: catalyst · molecules · enzyme · atoms · fuel cell

New technology enables fast protein synthesis

Many proteins are useful as drugs for disorders such as diabetes, cancer, and arthritis. Synthesizing artificial versions of these proteins is a time-consuming process that requires genetically engineering microbes or other ...

Simulations explain detonation properties in TATB

Two Lawrence Livermore National Laboratory (LLNL) scientists have discovered a new mechanism for ignition of high explosives that explains the unusual detonation properties of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB).

Cold-adapted enzymes can transform at room temperature

Enzymes from cold-loving organisms that live at low temperatures, close to the freezing point of water, display highly distinctive properties. In a new study published in Nature Communications, scientists at Uppsala University ...

Why toothpaste and cement harden over time

Take a look inside the cap of your favorite toothpaste, and you might see hard, white residue, a firm version of the smooth paste you squeeze onto your brush.

Study unveils details of how a widely used catalyst splits water

A crystalline compound called ruthenium dioxide is widely used in industrial processes, where it's particularly important for catalyzing a chemical reaction that splits molecules of water and releases oxygen. But the exact ...

Imaging structural changes in catalysts during reaction conditions

Scientists from National University of Singapore (NUS) imaged the structural changes in noble metal catalysts during carbon monoxide (CO) oxidation, showing that the catalysts switch between inactive and active states depending ...

Quantum brakes in molecules

Physicists have measured the flight times of electrons emitted from a specific atom in a molecule upon excitation with laser light. This has enabled them to measure the influence of the molecule itself on the kinetics of ...

Researchers develop an artificial chloroplast

Over billions of years, microorganisms and plants evolved the remarkable process we know as photosynthesis. Photosynthesis converts sun energy into chemical energy, thus providing all life on Earth with food and oxygen. The ...

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Chemical reaction

A chemical reaction is a process that always results in the interconversion of chemical substances. The substance or substances initially involved in a chemical reaction are called reactants. Chemical reactions are usually characterized by a chemical change, and they yield one or more products, which usually have properties different from the reactants. Classically, chemical reactions encompass changes that strictly involve the motion of electrons in the forming and breaking of chemical bonds, although the general concept of a chemical reaction, in particular the notion of a chemical equation, is applicable to transformations of elementary particles, as well as nuclear reactions. Different chemical reactions are used in combination in chemical synthesis in order to get a desired product. In biochemistry, series of chemical reactions catalyzed by enzymes form metabolic pathways, by which syntheses and decompositions ordinarily impossible in conditions within a cell are performed.

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