News tagged with chemical
Organic carbon from Mars, but not biological
(Phys.org) -- Molecules containing large chains of carbon and hydrogen--the building blocks of all life on Earth--have been the targets of missions to Mars from Viking to the present day. While these molecules ...
Space & Earth / Space Exploration
May 24, 2012 |
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New type of biosensor is fast, super-sensitive
(Phys.org) -- A whole new class of biosensor that can detect exceptionally small traces of contaminants in liquids in just 40 minutes has been developed by a UNSW-led team of researchers.
Chemistry / Analytical Chemistry
21 hours ago |
5 / 5 (1) |
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High-speed method to aid search for solar energy storage catalysts
Eons ago, nature solved the problem of converting solar energy to fuels by inventing the process of photosynthesis.
May 25, 2012 |
5 / 5 (4) |
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Building a better solar panel -- one molecule at a time
(Phys.org) -- One of the fundamental building blocks in modern chemistry, an organometallic chemical compound called ferrocene, has never been structurally defined - until now.
May 25, 2012 |
4.8 / 5 (4) |
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Nuisance seaweed found to produce compounds with biomedical potential
A seaweed considered a threat to the healthy growth of coral reefs in Hawaii may possess the ability to produce substances that could one day treat human diseases, a new study led by scientists at Scripps ...
May 24, 2012 |
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New CO2-removing catalyst can take the heat
(Phys.org) -- The current method of removing the greenhouse gas carbon dioxide (CO2) from the flues of coal-fired power plants uses so much energy that no one bothers to use it. So says Roger Aines, principal ...
May 24, 2012 |
5 / 5 (9) |
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Nanofluidics sorts DNA for cancer research
(Phys.org) -- Cornell nanotechnology researchers have devised a new tool to study epigenetic changes in DNA that can cause cancer and other diseases: a nanoscale fluidic device that sorts and collects DNA, ...
Nanotechnology / Bio & Medicine
May 24, 2012 |
5 / 5 (2) |
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The first chemical circuit developed
Klas Tybrandt, doctoral student in organic electronics at Linkoping University, Sweden, has developed an integrated chemical chip. The results have just been published in Nature Communications.
13 hours ago |
5 / 5 (8) |
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The need for speed
Coherent Raman scattering methods have one key advantage over spontaneous Raman microscopy: speed. The (sub-)microsecond pixel dwell times offered by narrowband CRS imaging methods have initiated a new era ...
16 hours ago |
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The secret to good tomato chemistry
There is nothing better than a ripe, red, homegrown tomato, and now researchers reporting online on May 24 in Current Biology have figured out just what it is that makes some of them so awfully good (and your average superm ...
May 24, 2012 |
4 / 5 (1) |
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Forensic sleuth probes fate of royal lovers and lion hearts
The French media like to call him the "Indiana Jones of the graveyards", but perhaps a better tag would be the Sherlock Holmes of forensic science.
Other Sciences / Archaeology & Fossils
May 24, 2012 |
5 / 5 (2) |
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Deterring signals: Tobacco plants advertise their defensive readiness to attacking leafhoppers
Following herbivory, plants produce jasmonic acid, a hormone which activates several plant defense reactions. Scientists found that leafhoppers can evaluate whether tobacco plants are ready for defense when attacked. If jasmonate-signaling ...
May 23, 2012 |
5 / 5 (1) |
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Calling familiar assumptions into question results in better materials design
(Phys.org) -- Carbon and fluorine are at the heart of a family of chemical compounds that can be used for nonstick coatings, blood substitutes, and seemingly everything in between.
May 23, 2012 |
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Nanotechnology for solar energy conversion systems
EU researchers extensively characterised the self-organisation of nanotubes and developed novel compositions particularly appropriate to solar energy conversion applications.
Nanotechnology / Nanomaterials
May 25, 2012 |
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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.
For more information about Chemical reaction, read the full article at
Wikipedia.
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