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Fluorescent

Materials

New fluorescent lighting phosphors slash use of rare-earth elements

Phosphors are essential to fluorescent lighting, and thus office parks the world over, but their use of rare-earth elements makes them less than ideal. To address that issue, new types of phosphors have been developed that use substantially less rare-earth elements than current phosphors found in fluorescent bulbs. This could reduce the reliance on the limited supplies of rare-earth elements until fluorescent lighting can be completely replaced by LED lighting, which isn't expected to occur for over a decade.Read More

Inventors & Remarkable People

Super-resolved fluorescence microscopy pioneers awarded 2014 Nobel Prize in Chemistry

Ever since Antonie van Leeuwenhoek turned his simple microscope on a bit of pond water in the 17th century, optical microscopes have been a key tool for biologists. Unfortunately, they’re rather limited as to the smallness of what they can see – or at least, they were. This year's winners of the Nobel Laureates in Chemistry, Eric Betzig, Stefan W. Hell and William E. Moerner, changed all that. Their discovery of two methods to bypass the physical limits of optical microscopes led to the creation of the field of nanomicroscopy. Read More

Around The Home

Cree aims to make fluorescent tubes obsolete with LED T8 series

Fluorescent lights aren't on the top of many people’s favorites list. Ever since they were introduced at the New York World’s Fair in 1939, they've been notorious for their cold, bluish light that is the definition of “uncomplimentary” and accompanied by flickering and a telltale buzz. Cree, Inc. is aiming to relegate fluorescent tubes to the pages of history with its new T8 series of LED tubes that promise LED-level energy savings and greatly improved light quality.Read More

Health & Wellbeing

Fluorescent sensor indicates presence of date-rape drug within 30 seconds

Central to the dangers of so-called "date-rape" drugs is the fact that they are difficult to detect. Indeed, GHB, one of the most commonly-used of such drugs, is both colorless and odorless. A team of researchers from the National University of Singapore (NUS) has developed a fluorescent sensor which, when mixed with a drink containing GHB, changes color within 30 seconds, potentially alerting people soon after their drink has been tampered with. Read More

Science

DNA clamps could stop cancer in its tracks

Scientists have developed a special DNA clamp to act as a diagnostic nano machine. It's capable of detecting genetic mutations responsible for causing cancers, hemophilia, sickle cell anemia and other diseases, more efficiently than existing techniques. Not only can the clamp be used to develop more advanced screening tests, but it could also help create more efficient DNA-based nano machines for targeted drug delivery. Read More

Medical

New test could make ulcer-causing bacteria emit green light in the stomach

Research carried out by a team of scientists at the University of Southern Denmark literally sheds new light on how a non-invasive technique for the early diagnosis of stomach ulcers could be performed in the future. The findings of the researchers point to a fast, hassle-free method that does not require sample tissues, unlike current testing methods.Read More

Science

Scientists create green-glowing piglets

Scientists in Guangdong Province, Southern China, have created piglets that glow green under a black-light. The glow is caused by a fluorescent protein from jellyfish DNA that was transferred into the embryos within the sow, as a marker to show that the transfer of genetic material had been successful.Read More

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