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E. coli News
Portable Device Uses Photomultiplier to Detect Foodborne Illness
WEST LAFAYETTE, Ind., Feb. 14, 2020 — Researchers at Purdue University have developed a bioluminescence-sensing assay coupled with a portable light detection device that works with smartphones and laptops to do on-site testing for E. coli in food samples. To facilitate the use of a silicon photomultiplier (SiPM) in a portable, field-deployable device, the researchers designed an electrical circuit consisting of an amplifier, comparator, and microcontroller to send the data from the SiPM to laptops and smartphones via
Sensor Can Find E. coli Quickly Over Wide Temperature Range
OUTAOUAIS, Quebec, Sept. 28, 2016 — A fiber-optic biosensor has been developed that can detect E.coli bacteria in 15-20 minutes. The sensor is temperature-insensitive over a wide range, making it well-suited for the accurate detection of E. coli bacteria in outdoor environments.
Laser Scatterometer Distinguishes Wild Type, Mutant Bacteria
WEST LAFAYETTE, Ind., June 6, 2016 — A laser scatterometer tool has been demonstrated to quickly and noninvasively detect harmful bacteria, including mutant listeria varieties, within 24 hours. It holds promise for the identification of mutant bacteria, and could be used to identify...
Creation of Living Materials Shows Potential
CAMBRIDGE, Mass., March 25, 2014 — A new approach to materials synthesis has shown promise in the creation of living elements.
Laser Sensor Speeds Up Salmonella Detection
WEST LAFAYETTE, Ind., Feb. 13, 2014 — A new laser sensor can identify salmonella bacteria in food samples as much as three times faster than conventional detection methods.
Optical Sensors Watch What We Eat
Jun 1, 2013 — Optics technologies are advancing food safety applications. Natural pathogens. Food fraud and adulteration. Bioterrorism. Food safety is more of a concern today than it’s ever been before. Because the path from producer to consumer is...
New Superresolution Technique Reveals Cell Secrets
ALBUQUERQUE, N.M., May 18, 2011 — A new superresolution microscopy technique is answering longheld questions about how and why a cell’s defenses fail against some invaders, such as plague, while successfully fending off others, such as E. coli. The approach is revealing...
Finding E. Coli in Beef Faster
WEST LAFAYETTE, Ind., Sept. 16, 2010 — Infrared spectroscopy can detect Escherichia coli faster than current testing methods and can cut days off investigations of outbreaks, according to a study performed at Purdue University. Lisa Mauer, an associate professor of food science,...
New Method Manipulates Particles
WEST LAFAYETTE, Ind., June 22, 2010 — Researchers at Purdue University have developed a potential new tool for medical diagnostics, for testing food and water for contamination and for crime scene forensics. The novel technique uses a combination of light and electric fields to position...
Water purification – ultraviolet style
May 10, 2010 — Created by industrial designer Olivia Blechschmidt, the STER UV portable water sterilization device is tailored to the home kitchen environment. The tool aims to provide an effective alternative to boiling water in the home for those affected by...
NEMS Oscillators May Detect Toxins
ITHACA, N.Y., March 18, 2010 - By watching how energy moves across a tiny device Cornell researchers are a step closer to creating extraordinarily tiny sensors that can instantly recognize harmful substances in ...
A step closer to stopping E.coli
WEST LAFAYETTE, Ind. – To prevent Escherichia coli from reaching consumers, scientists have developed a method of detecting and detaining one of its more common virulent strains, serotype O157:H7. This bacterium is found in contaminated foods such as beef, vegetables and...
Proteins Controlled by Light
UNIVERSITY PARK, Pa., & DALLAS, Oct. 16, 2008 -- Scientists have discovered a way to use light to control the activity of certain proteins, which they said could one day let them turn off disease-causing aspects of proteins in cells. "This is one of the first examples of someone successfully...
Beam of Light Picks Up Cells
CAMBRIDGE, Mass., Oct. 31, 2007 -- A beam of light has been used for the first time to pick up, hold, and move around individual cells and other objects on the surface of a silicon microchip. The new technology could become an important tool for both biological and materials...
Catalysts Stamp Nanopatterns
DURHAM, N.C., Oct. 1, 2007 -- A hundred-fold improvement in the precision of features imprinted to create microdevices such as labs-on-a-chip has been introduced using enzymes from E. coli bacteria. The inkless microcontact printing technique can imprint details measuring...
Sugar-Coated Carbon Nanotubes Stop Anthrax
CLEMSON, S.C., Oct. 5, 2006 -- Just as a "spoonful of sugar helps the medicine go down," researchers have found that coating carbon nanotubes with sugar attracts deadly anthrax spores, rendering them harmless. Clemson University chemist Ya-Ping Sun and his research team...
Rochester Scientists Develop Fast Biosensor
Mar 9, 2006 — ROCHESTER, N.Y., March 9, 2006 -- By creating a sensing system that includes a protein sample from a bacteria, a silicon chip and a digital camera, University of Rochester Medical Center scientists have demonstrated a new technology that accurately...
(17 results found)
May 2024
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