News tagged with chemical

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

The dopamine advantage

The junctions between nerve cells responsible for releasing and receiving dopamine in the brain are a surprising mismatch that gives this chemical a strong competitive advantage.

Jun 20, 2016
popularity13 comments 0

Using ultrasound to improve drug delivery

Using ultrasound waves, researchers from MIT and Massachusetts General Hospital (MGH) have found a way to enable ultra-rapid delivery of drugs to the gastrointestinal (GI) tract. This approach could make it easier to deliver ...

Oct 21, 2015
popularity76 comments 0

Neurons constantly rewrite their DNA

Johns Hopkins scientists have discovered that neurons are risk takers: They use minor "DNA surgeries" to toggle their activity levels all day, every day. Since these activity levels are important in learning, memory and brain ...

Apr 27, 2015
popularity2481 comments 67

Artifical neuron mimicks function of human cells

Scientists at Karolinska Institutet have managed to build a fully functional neuron by using organic bioelectronics. This artificial neuron contain no 'living' parts, but is capable of mimicking the function of a human nerve ...

Jun 24, 2015
popularity513 comments 0

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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