Oncology & Cancer

Glowing dye may aid in eliminating cancer

"Clean margins" are a goal of cancer excision surgery. If even a small piece of cancerous tissue is left behind, it increases the likelihood of a local recurrence and spread of the disease, possibly reducing overall survival ...

Genetics

Restoring vision by gene therapy

Humans rely dominantly on their eyesight. Losing vision means inability to read, recognize faces or find objects. Macular degeneration is one of the major causes of visual impairment around the globe; close to 200 million ...

Oncology & Cancer

Microcapsules for targeted drug delivery to cancer cells

A team of scientists from Peter the Great St.Petersburg Polytechnic University (SPbPU) together with their colleagues developed a method of targeted drug delivery to cancer cells. The discovery is based on the use of mesenchymal ...

Radiology & Imaging

Low-cost, portable system takes OCT beyond ophthalmology

Researchers have developed a way to perform optical coherence tomography (OCT) in hard-to-reach areas of the body such as joints. The advance could help bring this high-resolution biomedical imaging technique to new surgical ...

Arthritis & Rheumatism

Light touch to improve rheumatoid arthritis diagnosis

A new way of detecting rheumatoid arthritis using infrared light could offer an objective way of diagnosing the disease and monitoring treatment effectiveness, a University of Birmingham study shows.

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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