Specialties 2009 P
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03/17/2009 -- AFM, optical microscopy show bacteria 'breathing' toxic metals
COLUMBUS, OH, USA--Using a combination of microscopy methods, an Ohio State-led research team have been able to witness how common bacteria "inhales" toxic metals and "exhales" them in a non-toxic form. It is hoped the bacteria might one day clean up nuclear weapons production sites. The researchers used an AFM to test how the bacterium responded to hematite--and then combined the AFM with an optical microscope to visualize the bacteria's location on the hematite. -
03/17/2009 -- Study shows UV light can cut spread of TB by 70% in hospitals
MARCH 17, 2009--A study published today in PLoS Medicine reports that ultraviolet (UV) lights could reduce the spread of tuberculosis in hospital wards and waiting rooms by 70%. The study suggests that installing simple ultraviolet C (UVC) lights in hospitals could help reduce transmission of even drug-resistant strains of TB. The light kills TB bacteria by damaging their DNA so they cannot grow, divide, or infect people. -
03/18/2009 -- Low-cost camera made to prevent diabetic vision loss claims implications for microscopy, OCT
MARCH 18, 2009--Researchers at Indiana University (Bloomington, IN) are developing a laser scanning digital camera that runs about one-fourth the cost of its counterparts and is designed for ease of use by both clinicians and patients. They say it will broaden access to early screening for diabetic retinopathy and has implications for all biomedical imaging devices, including confocal and two-photon microscopes, and optical coherence tomography (OCT) systems. -
03/20/2009 -- Researchers publish super-resolution OCT retina scans to encourage development of AMD-diagnosis software
MARCH 20, 2009--An optical coherence tomography (OCT) system with twice the resolution of commercial instruments is the cornerstone of a project designed to shed light on age-related macular degeneration (AMD)--a leading cause of vision loss. The project produced detailed 3D images of the eyes of more than 2000 people. It leverages an OSA-led initiative to facilitate data sharing, and hopes to pave the way for new diagnostic software that might enable treatments to halt vision loss. -
03/23/2009 -- Quick, simple tuberculosis detector part of new TB and HIV research initiative
MARCH 23, 2009--Researchers from the University of Pittsburgh (Pittsburgh, PA) and the Albert Einstein College of Medicine (Bronx, NY) have developed a quick method for on-site diagnosis of tuberculosis (TB) using green fluorescence protein (GFP) implanted in bacteriophages specific to TB. Besides quick diagnosis, the test also could be used to distinguish treatable TB strains from those that are drug resistant, a chore that normally takes months.
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