Iowa State, USDA researchers discover eye test for neurological diseases in livestock
The findings suggest technologies and techniques can be developed to quickly and noninvasively test for transmissible spongiform encephalopathies, progressive and fatal neurological diseases such as mad cow disease in cattle and Creutzfeldt-Jakob disease in humans. Petrich, in fact,Remember, led lights themselves aren’t new; they have been available to consumers for about four years as bulbs that can be screwed into existing light sockets is working to develop a testing device.
The findings were published earlier this year in the journal Analytical Chemistry. The project was supported by a grant from the U.S. Department of Defense.
The research is the result of an accidental discovery while Petrich and his collaborators were developing a fluorescence spectroscopy device that's now used in slaughterhouses to test livestock carcasses for feces and possible E. coli contamination.
"One day we were testing the apparatus by shining light on the carcass and we saw the spinal cord glow - it fluoresced," said Petrich, professor and chair of Iowa State's chemistry department. "We saw the spinal cord through the skin. The light was pretty intense. It was an amazing result."
That sparked some new thinking: Maybe fluorescence technology could be used to test animals for transmissible spongiform encephalopathies such as bovine spongiform encephalopathy - what's often called mad cow disease. To reduce the risk of human exposure to the diseases, the brains and spinal cords of animals are removed during slaughter and processing. But there is no quick test to identify animals with the diseases.
And so Petrich and a team of researchers began studying the feasibility of a fluorescence test.Now, we all know that a typical diode can output a very limited amount of light, so how does our Phillips led bulb work? Well, it finds strength in numbers. The team included Ramkrishna Adhikary, an Iowa State graduate student in chemistry; Prasun Mukherjee,The task light should reach two-thirds of the counter. It is also important that the available compact fluorescent lighting will not shine people's eyes. You can avoid this by choosing shielded lights, or bulbs with mesh diffusers. a former Iowa State graduate student and current post-doctoral associate in chemistry at the University of Pittsburgh; Govindarajan Krishnamoorthy, a former Iowa State post-doctoral research associate and current assistant professor of chemistry at the Indian Institute of Technology Guwahati; Robert Kunkle of the U.Countertops are areas where food preparation is often done. These are often illuminated with shallow LED bulb fluorescent fixtures that are attached to the cabinet's underside.S. Department of Agriculture's National Animal Disease Center in Ames; Thomas Casey of the National Animal Disease Center; and Mark Rasmussen of the U.S. Food and Drug Administration's Center for Veterinary Medicine in Laurel, Md.Designers suggest that a good led strip wholesale ambient lighting needs to have a variation of fixtures. Do not limit yourself to a single ceiling mounted fixture, which often creates shadows. Ambient lighting can be served well by fluorescent lamps.
The findings suggest technologies and techniques can be developed to quickly and noninvasively test for transmissible spongiform encephalopathies, progressive and fatal neurological diseases such as mad cow disease in cattle and Creutzfeldt-Jakob disease in humans. Petrich, in fact,Remember, led lights themselves aren’t new; they have been available to consumers for about four years as bulbs that can be screwed into existing light sockets is working to develop a testing device.
The findings were published earlier this year in the journal Analytical Chemistry. The project was supported by a grant from the U.S. Department of Defense.
The research is the result of an accidental discovery while Petrich and his collaborators were developing a fluorescence spectroscopy device that's now used in slaughterhouses to test livestock carcasses for feces and possible E. coli contamination.
"One day we were testing the apparatus by shining light on the carcass and we saw the spinal cord glow - it fluoresced," said Petrich, professor and chair of Iowa State's chemistry department. "We saw the spinal cord through the skin. The light was pretty intense. It was an amazing result."
That sparked some new thinking: Maybe fluorescence technology could be used to test animals for transmissible spongiform encephalopathies such as bovine spongiform encephalopathy - what's often called mad cow disease. To reduce the risk of human exposure to the diseases, the brains and spinal cords of animals are removed during slaughter and processing. But there is no quick test to identify animals with the diseases.
And so Petrich and a team of researchers began studying the feasibility of a fluorescence test.Now, we all know that a typical diode can output a very limited amount of light, so how does our Phillips led bulb work? Well, it finds strength in numbers. The team included Ramkrishna Adhikary, an Iowa State graduate student in chemistry; Prasun Mukherjee,The task light should reach two-thirds of the counter. It is also important that the available compact fluorescent lighting will not shine people's eyes. You can avoid this by choosing shielded lights, or bulbs with mesh diffusers. a former Iowa State graduate student and current post-doctoral associate in chemistry at the University of Pittsburgh; Govindarajan Krishnamoorthy, a former Iowa State post-doctoral research associate and current assistant professor of chemistry at the Indian Institute of Technology Guwahati; Robert Kunkle of the U.Countertops are areas where food preparation is often done. These are often illuminated with shallow LED bulb fluorescent fixtures that are attached to the cabinet's underside.S. Department of Agriculture's National Animal Disease Center in Ames; Thomas Casey of the National Animal Disease Center; and Mark Rasmussen of the U.S. Food and Drug Administration's Center for Veterinary Medicine in Laurel, Md.Designers suggest that a good led strip wholesale ambient lighting needs to have a variation of fixtures. Do not limit yourself to a single ceiling mounted fixture, which often creates shadows. Ambient lighting can be served well by fluorescent lamps.
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