{"id":7723,"date":"2019-02-27T07:42:54","date_gmt":"2019-02-27T15:42:54","guid":{"rendered":"https:\/\/phoseon.com\/?post_type=in_the_news&p=7723"},"modified":"2021-12-22T14:06:15","modified_gmt":"2021-12-22T22:06:15","slug":"phoseon-technologys-uv-leds-detect-and-disinfect","status":"publish","type":"in_the_news","link":"https:\/\/phoseon.com\/pt\/in-the-news\/phoseon-technologys-uv-leds-detect-and-disinfect\/","title":{"rendered":"UV LEDs Detect and Disinfect"},"content":{"rendered":"\n

Intense, Cool, and Long-Lived, UV LEDs Outshine UV Lamps, May Brighten Imaging Applications <\/h2>\n\n\n\n

By GEN News<\/p>\n\n\n\n

Biomolecular contaminants dislike the spotlight, especially if it\u2019s an ultraviolet (UV) spotlight. So, biomolecular contaminants must really hate the intense glare from decontamination systems that use UV light-emitting diodes (LEDs). One of these systems recently demonstrated that it can irreversibly inactivate RNase A\u2014a pervasive contaminant in RNA sequencing and analysis labs.<\/p>\n\n\n\n

Decontamination systems are hardly the only systems taking advantage of UV LED technology. By incorporating UV LED technology, chromatography\/spectroscopy instruments are sharpening their detection capabilities, and sterilization systems are boosting their germicidal powers.<\/p>\n\n\n\n

All these UV LED systems are available from Phoseon Technology, a company that has a strong background in solid-state semiconductor devices. Not long ago, Phoseon\u2019s UV LEDs were confined to industrial curing operations. Now these UV LEDs are penetrating the life sciences, replacing relatively inefficient UV lamps and eliminating the need for harsh chemicals and long-term heat treatments. The company\u2019s UV LEDs are even encouraging UV visionaries to anticipate more ambitious applications.<\/p>\n\n\n\n

UV light in the UV-C frequency band, or \u201cdeep UV,\u201d has always had the ability to induce fluorescence in biological material. But now that UV-C light can be wielded so much more effectively thanks to UV LED technology, once impractical applications are looking more realistic. For example, label-free fluorescence imaging, which would involve the excitation, detection, and possibly modification of molecules in tissues, is a near-term possibility in life sciences research. Diagnostic applications, too, are attractive possibilities, although they will take a little longer to realize.<\/p>\n\n\n\n

\"UV<\/figure>\n\n\n\n


Using the Phoseon UV LED technology, researchers inactivitated the pervasive contaminant RNase A, thus providing an alternative to chemical or thermal decontamination.<\/em><\/p>\n\n\n\n

A Bright Idea<\/strong><\/p>\n\n\n\n

Back in 2002, Phoseon started supplying UV LEDs that were optimized for industrial curing the cross-linking of polymer chains in adhesives and coatings. Then Phoseon decided to use its core technology to bring the power, stability, and control that set it apart in the industrial application to life sciences. The apparent foray into the life sciences, which officially began in 2017, was actually the culmination of preparatory and analytical work that stretched back to 2011.<\/p>\n\n\n\n

Although industrial curing and the life sciences are very different, they both stand to benefit from progress in UV technology. Traditional UV technologies rely on xenon, halogen, mercury, or deuterium light sources. Those sources are relatively slow for decontamination and generate excessive heat.<\/p>\n\n\n\n

\u201cThe UV lamps spark, and their output degrades over time,\u201d says Chad Taggard, vice president and general manager of Phoseon\u2019s life sciences division. \u201cThey also require high voltage.\u201d<\/p><\/blockquote>\n\n\n\n

Many of the limitations of UV lamps can be overcome by UV LEDs, which are built on solid-state electronics and provide long-term consistency. \u201cIntensity is the same from minute to minute, and from year to year,\u201d notes Jay Pasquantonio, Phoseon\u2019s strategy director. \u201cIt\u2019s the same years later as it was on the first day. That\u2019s important when you think about repeatability of process. We can provide more power in terms of UV intensity than anyone else, along with control and stability.\u201d<\/p><\/blockquote>\n\n\n\n

Specifically, he says, Phoseon\u2019s solid-state Semiconductor Light Matrix (SLM\u2122) technology offers:<\/p>\n\n\n\n