Mission control has instructed the crewmembers of the International Space Station (ISS) to open the hatches of the recently docked ATV-4 unmanned cargo spaceship and carry out disinfection procedures, over fears of mold and bacteria contamination.
See also: "ISS Supply Ship Opens Hatch After ‘Bacteria’ Delay"
Researchers aim to develop a concrete mix that contains bacteria within microcapsules, which will germinate when water enters a crack in the concrete to produce limestone (calcite), plugging the crack before water and oxygen has a chance to corrode the steel reinforcement.
Think you know about Pseudomonas aeruginosa? Think you know what makes it tick and be competitive in a range of different niches? Well now is your chance to prove it by participating in the inaugural Pseudomonas World Cup 2014.
Severe diarrhoea caused by rotavirus claims the lives of 453,000 under-five children worldwide each year. A vaccine developed in India promises cheap protection while adding to the global basket of rotavirus vaccines.
Syphilis and yaws are the result of infection by different subspecies of the bacterium Treponema pallidum. A diagnostic test targeting syphilis and an oral antibiotic could be used together to help eradicate yaws disease, a WHO meeting was told.
A 15-unit apartment building has been constructed in the German city of Hamburg that has 129 algae filled louvered tanks hanging over the exterior of the south-east and south-west sides of the building—making it the first in the world to be powered exclusively by algae.
The relatively scarce "sweet wormwood" plant has long been the only source of the antimalarial drug artemisinin. Now the drug can be commercially produced in large quantities using genetically-modified yeast.
High-level semi-synthetic production of the potent antimalarial artemisinin
Biologists have known for decades that there are up to seven sexes of the single-celled organism known as Tetrahymena thermophila — but they didn't know exactly how those different sexes "did it." Until now.
Selecting One of Several Mating Types through Gene Segment Joining and Deletion in Tetrahymena thermophila
There is an apparent shortage of doxycycline, an old and (usually) inexpensive drug that is used mostly for uncomplicated infections such as sexually transmitted diseases and acne. It is also used, though, as the first treatment for a new case of Lyme disease — and that more than anything has sparked alarm.
A weakened strain of bacteria can deliver radiation to mouse pancreatic tumors while leaving normal tissue unscathed. Treating mice with radioactively labeled, attenuated Listeria monocytogenes drastically reduced the number of metastases, suggesting that the strategy holds promise as a targeted anti-cancer therapy with limited side effects.
Via Núria ;)
Nontoxic radioactive Listeria(at) is a highly effective therapy against metastatic pancreatic cancer
The great biologist Francois Jacob has died. He won the Nobel Prize for his work in the 1950s that showed how cells switch genes off – the first crucial step to understanding how life can use the genome like a piano, to make a beautiful melody instead of a blaring cacophony...
Viruses have historically been classified into one of two types – those with an outer lipid-containing envelope and those without an envelope. It is now discovered that hepatitis A virus, a common cause of enterically-transmitted hepatitis, takes on characteristics of both virus types depending on whether it is in a host or in the environment.
Twenty years ago, tuberculosis (TB) was one of the least glamorous branches of medicine. The cause had long been known, as had the cure, so all that was left was the unromantic slog of reducing the poverty, hunger and overcrowding that fostered the disease, and working out better ways to get patients to comply with the lengthy course of treatment needed to cure it. But in 1993 the sudden upsurge in TB cases associated with HIV and AIDS, and the growth of multidrug-resistant (MDR) strains of the bacterium, led the World Health Organization (WHO) to declare the disease a global emergency, which unlocked research funding. Now we are beginning to see the results...
Special series of articles (freely available for registered users) published in The Lancet Infectious Diseases: