Researchers design an improved pathway to carbon-neutral plastics

Researchers from U of T Engineering and Caltech have designed a new and improved system for efficiently converting CO2, water, and renewable energy into ethylene—the precursor to a wide range of plastic products, from medical ...

Yeasts in nectar can stimulate the growth of bee colonies

Researchers from KU Leuven have found that the presence of yeasts can alter the chemical composition and thus the nutritional value of nectar for pollinators such as bees. Moreover, the study found that yeasts can even boost ...

New 3-D printing technique produces 'living' 4-D materials

Repairing and reusing plastics and delivering cancer drugs more effectively are only two of many of the potential applications a new 3-D/4-D printing technology might have, thanks to the pioneering work of a research collaboration ...

Protein imaging at the speed of life

To study the swiftness of biology—the protein chemistry behind every life function—scientists need to see molecules changing and interacting in unimaginably rapid time increments—trillionths of a second or shorter.

Directional control of self-propelled protocells

Synthetic protocells can be made to move toward and away from chemical signals, an important step for the development of new drug-delivery systems that could target specific locations in the body. By coating the surface of ...

Bacterial protein impairs important cellular processes

Areas of skin that have been damaged by an injury are ideal niches for the concentration of Pseudomonas aeruginosa, a bacterium which impairs the healing process in tissue and creates favorable conditions for infections. ...

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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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