News articles tagged with 'catalytic'
New finding in ribosome signalling may lead to improved antibiotics
— 23 Feb 2011 17:37 | HealthResearchers at the University of Illinois at Chicago have discovered a signalling mechanism in the bacterial ribosome that detects proteins that activate genes for antibiotic resistance…
Clay-armoured bubbles may have formed first protocells
— 7 Feb 2011 15:07 | ChemistryA team of applied physicists at Harvard's School of Engineering and Applied Sciences (SEAS), Princeton, and Brandeis have demonstrated the formation of semipermeable vesicles from inorganic…
A high-yield biomass alternative to petroleum for industrial chemicals
— 26 Nov 2010 19:49 | ChemistryA team of University of Massachusetts Amherst chemical engineers report in today's issue of Science that they have developed a way to produce high-volume chemical feedstocks including…
Molecular fossil
— 15 Nov 2010 17:39 | BiologyIn today's world of sophisticated organisms proteins are the stars. They are the indispensible catalytic workhorses, carrying out the processes essential to life. But long, long ago…
For platinum catalysts, smaller may be better
— 29 Jun 2010 10:02 | ChemistryWhen it comes to metal catalysts, the platinum standard is, well, platinum! However, at about $2,000 an ounce, platinum is more expensive than gold. The high cost of the raw material…
Messenger RNAs are regulated in far more ways than previously appreciated, CSHL team finds
— 26 Jun 2010 12:52 | BiologyOne way of regulating protein levels in cells is to shorten the lifespan of messenger RNAs (mRNAs). These are intermediary molecules that are first copied from DNA in the cell's nucleus…
CSHL scientists uncover alternative pathway of microRNA generation
— 29 Apr 2010 09:49 | HealthMicroRNAs are small bits of RNA within cells that wield enormous power. They influence virtually every biological process by controlling the 'expression' of genes. Helping them in exerting…
Scientists find donut-shaped structure of enzyme involved in energy metabolism
— 17 Feb 2010 11:32 | HealthIf subway terminals didn't exist and people had to exit subway stations to switch subway lines, transit time would increase. People also may encounter distractions, such as grabbing…
Similar molecular tweaks led both a shrew and a lizard to produce venom
— 30 Oct 2009 11:25 | BiologyBiologists have shown that independent but similar molecular changes turned a harmless digestive enzyme into a toxin in two unrelated species - a shrew and a lizard - giving each a…
New material could expand applications and lower costs for solid oxide fuel cells
— 2 Oct 2009 13:48 | TechnologyA new ceramic material described in this week's issue of the journal Science could help expand the applications for solid oxide fuel cells - devices that generate electricity directly…