News tagged with chemical

Related topics: environmental protection agency · environmental health perspectives · breast cancer · bpa · molecules

Fracking chemicals tied to reduced sperm count in mice

Prenatal exposure to a mixture of chemicals used in the oil and natural gas drilling technique known as hydraulic fracturing, or fracking, at levels found in the environment lowered sperm counts in male mice when they reached ...

Oct 14, 2015
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Tissue chips predict neurotoxicity

A lot of time, money, and effort are devoted to developing new drugs. Yet only one of every 10 drug candidates entering human clinical trials successfully goes on to receive approval from the Food and Drug Administration ...

Oct 01, 2015
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Breastfeeding may expose infants to toxic chemicals

A widely used class of industrial chemicals linked with cancer and interference with immune function—perfluorinated alkylate substances, or PFASs—appears to build up in infants by 20%-30% for each month they're breastfed, ...

Aug 20, 2015
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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.

This text uses material from Wikipedia, licensed under CC BY-SA

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