Quantcast

Latest Biomolecules Stories

2009-05-19 11:40:00

Enzyme-equipped liposomes embedded in polymer capsules as a novel biomedical transport system When cells cannot carry out the tasks required of them by our bodies, the result is disease. Nanobiotechnology researchers are looking for ways to allow synthetic systems take over simple cellular activities when they are absent from the cell. This requires transport systems that can encapsulate medications and other substances and release them in a controlled fashion at the right moment. The...

2009-04-17 11:41:55

Combating several human pathogens, including some biological warfare agents, may one day become a bit easier thanks to research reported by a University of Iowa chemist and his colleagues in the April 16 issue of the journal Nature.Amnon Kohen, associate professor of chemistry in the UI College of Liberal Arts and Sciences, said that the study indicated a new mechanism by which certain organisms manufacture the DNA base thymidylate. This new mechanism is so very different from the way humans...

2009-03-13 14:34:15

Bacterial resistance to antibiotics is one of medicine's most vexing challenges. In a study described in Nature Chemical Biology, researchers from Albert Einstein College of Medicine of Yeshiva University are developing a new generation of antibiotic compounds that do not provoke bacterial resistance. The compounds work against two notorious microbes: Vibrio cholerae, which causes cholera; and E. coli 0157:H7, the food contaminant that each year in the U.S. causes approximately 110,000...

2009-02-26 08:00:00

VIENNA, Austria and CUXHAVEN, Germany, February 26 /PRNewswire/ -- EUCODIS Bioscience, a company developing proteins for the chemical industry, and Lohmann Animal Health (LAH), a company developing and marketing products for animal nutrition and animal health, today announced the achievement of a major development milestone in their collaboration agreement relating to the optimization of an undisclosed protein. EUCODIS Bioscience has completed the development of the prototype...

8ad9ec3ae38828a67c069bab5298133f1
2009-02-24 15:50:59

Researchers at the University of Warwick have found how a citric acid-based Achilles heel used by a pathogen that attacks the popular African Violet house plant could be exploited not just to save African Violets but also to provide a potentially effective treatment for Anthrax. The researchers examined how a chemical structure is assembled in a bacterial pathogen called Pectobacterium chrysanthemi (Dickya dadantii) that afflicts plants "“ particularly the African Violet which often...

2009-02-23 22:55:29

A team of European researchers says hair grays with age as follicles become bleached first gray, and then white, from within. The researchers closely examined cell cultures of human hair follicles and found in the absence of the enzyme catalase, the hydrogen peroxide naturally produced in hair cells stops being broken down into water and oxygen. Also, hair follicles could not repair the damage caused by the accumulating hydrogen peroxide because of low levels of enzymes MSR A and B. High...

2009-02-17 10:50:22

 A Duke University-led team has brought powerful software to the never-ending arms race between antibiotics and germs. Working together, computer scientists and biochemists have developed and laboratory-tested a computer program that can show experimentalists how to change the machinery that bacteria use to make natural antibiotics.The program -- a set of computer rules known as the algorithm "K*" (pronounced K Star)-- is able to sort through all the possible shapes and changes of a key...

2009-01-19 10:00:00

Bifera provides the energy and nutritional benefits from iron with virtually no gastrointestinal side effects and is now available without a prescription ATLANTA, Jan. 19 /PRNewswire/ -- Bifera (www.bifera.com), an over-the-counter iron supplement that offers both heme (protein-based iron) and non-heme iron (plant-based iron) is now available in stores in the United States. Unlike other iron supplements, Bifera provides two types of iron in one small pill for maximum absorption with...

2009-01-09 15:41:14

Now, a pair of Scripps Research Institute scientists has taken a significant step toward answering that question. The scientists have synthesized for the first time RNA enzymes that can replicate themselves without the help of any proteins or other cellular components, and the process proceeds indefinitely.The work was published on Thursday, January 8, 2008, in Science Express, the advanced, online edition of the journal Science.In the modern world, DNA carries the genetic sequence for...

178f13dbdba22bd2f8ef67178697ef081
2008-11-12 11:39:13

Enzyme, biological reaction essential to life takes 2.3 billion years All biological reactions within human cells depend on enzymes. Their power as catalysts enables biological reactions to occur usually in milliseconds. But how slowly would these reactions proceed spontaneously, in the absence of enzymes "“ minutes, hours, days? And why even pose the question? One scientist who studies these issues is Richard Wolfenden, Ph.D., Alumni Distinguished Professor Biochemistry and Biophysics...


Word of the Day
out-herod
  • In the phrase to out-herod Herod, to be more violent than Herod (as represented in the old mystery plays); hence, to exceed in any excess of evil.
Herod refers to 'Herod the Great,' a Roman client king and 'a madman who murdered his own family and a great many rabbis.' According to the OED, the term is 'chiefly with allusion to Shakespeare's use' in Hamlet.
Related