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General Science / Chemistry news 1234

MIT laser method unveils ultrafast photochemical reactions

September 29, 2006 | User rating: 4.3 / 5 after 10 vote(s) | No comments yet

MIT researchers have made a fundamental advance in understanding how different environments affect chemical reactions by devising a novel way to observe ultrafast photochemical reactions--reactions induced ...


Tiny fuel cell might replace batteries in laptop computers, portable electronics

September 12, 2006 | User rating: 3.7 / 5 after 55 vote(s) | No comments yet

If you're frustrated by frequently losing battery power in your laptop computer, digital camera or portable music player, then take heart: A better source of "juice" is in the works. Chemists at Arizona State University in ...


Polymers show promise for lab-on-a-chip technology

August 30, 2006 | User rating: 3.9 / 5 after 11 vote(s) | No comments yet

Researchers are touting the use of liquid crystalline polymers (LCP) as a viable tool for use in devices such as the sought-after lab-on-a-chip technology.


Slow-frozen people? Latest research supports possibility of cryopreservation

June 20, 2006 | User rating: 4.6 / 5 after 59 vote(s) | No comments yet

The latest research on water - still one of the least understood of all liquids despite a century of intensive study – seems to support the possibility that cells, tissues and even the entire human body could be cryopreserved ...


Chemists forge a new form of iron

June 01, 2006 | User rating: 4.8 / 5 after 54 vote(s) | No comments yet

An international team of chemists has discovered a new and unexpected form of iron, a finding that adds to the fundamental understanding of an element that is among the most abundant on Earth and that, in nature, ...


Duke chemists synthesize promising anti-cancer product

August 20, 2008 | User rating: not shown ( 1 vote(s) ) | No comments yet

Duke University chemists have patented an efficient technique for synthesizing a marine algae extract in sufficient quantities to now test its ability to inhibit the growth of cancerous cells while leaving normal cells unaffected.


Biodegradable polymers show promise for improving treatment of acute inflammatory diseases

August 20, 2008 | User rating: not rated yet | No comments yet

A family of biodegradable polymers called polyketals and their derivatives may improve treatment for such inflammatory illnesses as acute lung injury, acute liver failure and inflammatory bowel disease by ...


That tastes -- sweet? Sour? No, it's definitely calcium!

August 20, 2008 | User rating: 3.8 / 5 after 9 vote(s) | User comments: 1

Chemists in Philadelphia are reporting a discovery that could expand the palate of human tastes — sweet, sour, salty, bitter, and savory — to include a new taste sensation that they term "calcium."


A better way to make hydrogen from biofuels

August 20, 2008 | User rating: 4.5 / 5 after 32 vote(s) | User comments: 2

Researchers here have found a way to convert ethanol and other biofuels into hydrogen very efficiently. A new catalyst makes hydrogen from ethanol with 90 percent yield, at a workable temperature, and using inexpensive ingredients.


'Cutting by color': New imaging technique for more precise cancer surgery

August 19, 2008 | User rating: 4.7 / 5 after 25 vote(s) | No comments yet

Instead of "paint by number," you might call it "cutting by color": Researchers in Massachusetts now report development and early clinical trials of a new imaging system that highlights cancerous tissue in ...


Catalyst mystery unlocked

August 18, 2008 | User rating: 4.7 / 5 after 12 vote(s) | User comments: 3

Different keys are not supposed to fit the same lock, but in biological systems multiple versions of a catalyst all make a reaction go, according to a new study that explains the phenomenon. Scheduled for online publication ...


Pesticide build-up could lead to poor honey bee health

August 18, 2008 | User rating: not shown ( 4 vote(s) ) | No comments yet

Honey bees industriously bring pollen and nectar to the hive, but along with the bounty comes a wide variety of pesticides, according to Penn State researchers. Add the outside assault to the pesticides already ...


Gel undergoes Peristalsis

August 18, 2008 | User rating: 4.5 / 5 after 15 vote(s) | User comments: 4

(PhysOrg.com) -- Large or small, machine parts only move when controlled by an external impulse. Biological systems, on the other hand, are capable of autonomous movements that continuously follow their own rhythms and spatial ...


Chemists make beds with soft landings

August 18, 2008 | User rating: not rated yet | No comments yet

Bedsprings aren't often found in biology. Now, chemists have succeeded in making a layer of tiny protein coils attached to a surface, much like miniature bedsprings in a frame. This thin film made of stable ...


Newly detected air pollutant mimics damaging effects of cigarette smoke

August 17, 2008 | User rating: 4.4 / 5 after 26 vote(s) | User comments: 3

A previously unrecognized group of air pollutants could have effects remarkably similar to harmful substances found in tobacco smoke, Louisiana scientists are reporting in a study scheduled for presentation ...


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