Oncology & Cancer

Scientists create 'virtual biopsy' device to detect skin tumors

Using sound vibrations and pulses of near-infrared light, a Rutgers University scientist has developed a new "virtual biopsy" device that can quickly determine a skin lesion's depth and potential malignancy without using ...

Medical research

Opioid alternative? Taming tetrodotoxin for precise painkilling

Opioids remain a mainstay of treatment for chronic and surgical pain, despite their side effects and risk for addiction and overdose. While conventional local anesthetics block pain very effectively, they wear off quickly ...

Medical research

Photoacoustic endoscopy could improve Crohn's disease treatment

A newly developed endoscope could give doctors a better view of intestinal changes caused by Crohn's disease. This additional information would help improve treatment of the painful and debilitating form of inflammatory bowel ...

Oncology & Cancer

Novel imaging technology may reduce biopsies for breast tumors

In American women, breast cancer is the most common cancer and the second-leading cause of cancer death. While routine screening helps to detect breast cancer, existing technology frequently identifies suspicious lesions ...

Oncology & Cancer

Pill for breast cancer diagnosis may outperform mammograms

As many as one in three women treated for breast cancer undergo unnecessary procedures, but a new method for diagnosing it could do a better job distinguishing between benign and aggressive tumors.

Neuroscience

Shining a light on the nervous system to thwart disease

Researchers from Case Western Reserve University School of Medicine, Vanderbilt University, and University of Pittsburgh have received a four-year, $9 million grant from the National Institutes of Health to develop enhanced ...

Oncology & Cancer

Detecting, diagnosing women's cancers in new ways

The National Institutes of Health has awarded a Washington University in St. Louis faculty member in the School of Engineering & Applied Science a total of $1.3 million to study new imaging techniques designed to better fight ...

Ophthalmology

A pocket-sized retina camera, no dilating required

It's the part of the eye exam everyone hates: the pupil-dilating eye drops. The drops work by opening the pupil and preventing the iris from constricting in response to light and are often used for routine examination and ...

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Infrared

Infrared (IR) radiation is electromagnetic radiation whose wavelength is longer than that of visible light (400-700 nm), but shorter than that of terahertz radiation (100 µm - 1 mm) and microwaves (~30,000 µm). Infrared radiation spans roughly three orders of magnitude (750 nm and 100 µm).

Direct sunlight has a luminous efficacy of about 93 lumens per watt of radiant flux, which includes infrared (47% share of the spectrum), visible (46%), and ultra-violet (only 6%) light. Bright sunlight provides luminance of approximately 100,000 candela per square meter at the Earth's surface.

This text uses material from Wikipedia, licensed under CC BY-SA