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bacteria News
Intelligent Microscope Framework Captures Biological Events
LAUSANNE, Switzerland, Sept. 13, 2022 — Biophysicists at École Polytechnique Fédérale de Lausanne (EPFL) introduced a method to automate microscope control for imaging biological events in detail with the help of artificial neural networks, while limiting stress on the sample. The team applied its development to the technique of fluorescence microscopy. Fluorescence microscopy can be used to collect data on specific biological events, though the event-specific content that can be collected from a sample is
Optogenetics Approach Delivers Precision Necessary to Study Bacteria in the Gut
HOUSTON, Jan. 8, 2021, — Researchers in Texas have succeeded in effectively turning gut bacteria inside the intestines of worms “on” and “off” by applying different colors of light, via an optogenetic control mechanism. The work helped the research...
TB Bacteria Measured with Light and Sound
ST. ANDREWS, Scotland, May 15, 2020 — A U.K.-wide research team, led by the School of Physics and Astronomy and the School of Medicine at the University of St Andrews, has developed an innovative way to monitor the reaction of living bacteria to antibiotics by using lasers and sound....
Communities of Microbes Found to Have Working Memory
SAN DIEGO, April 29, 2020 — Biologists at the University of California, San Diego, studying collectives of bacteria, or “biofilms,” have discovered that these so-called simple organisms feature a robust capacity for memory. The findings were reported in the journal...
Light, Nanotechnology Could Prevent Bacterial Infections in Implants
BARCELONA, Spain, May 24, 2019 — Researchers have devised a novel technique that uses nanotechnology and photonics to dramatically improve the performance of medical meshes for surgical implants and help prevent antibiotic-resistant bacteria.
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...
NIR Light, Gold Nanoparticles Combine to Inactivate Bacteria
HOUSTON, April 4, 2016 — A rapid photothermal technique has near-infrared (NIR) light to inactivate bacterial cells such as E. coli deposted on surfaces coated with gold nanoparticles. The method could one day help hospitals treat some common infections without using...
Blue LEDs Could Help Preserve Certain Refrigerated Foods
SINGAPORE, July 15, 2015 — Blue light may be the key to keeping chemical preservatives out of certain food products. A team of scientists from the National University of Singapore has found that blue LEDs have strong antibacterial effect on major foodborne pathogens, and are...
A Sticky Approach to Fighting Infection
BERKELEY, Calif., March 6, 2014 — A new nanoscale approach to studying a common source of infection could ultimately lead to the creation of bacteria-resistant materials as a line of defense.
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.
Water stream makes better pollution detector
Dec 1, 2013 — A new microfluidic sensor uses unconfined streams of water to test for dangerous chemicals and bacteria in liquid simply and cheaply. The pollutant detector was developed in Italy within the framework of the research project ACQUASENSE, and it...
207-nm UV Light May Reduce Surgical Infections
NEW YORK, Oct. 17, 2013 — A narrow spectrum of ultraviolet light can destroy drug-resistant bacteria but is safe for human exposure, a new study says, and may be a way to reduce the serious and stubborn problem of surgical wound infections. It’s been known for years...
Water Stream Detects Pollution Better
NAPLES, Italy, Oct. 15, 2013 — A microfluidic sensor with a novel design uses unconfined streams of water as a simple, cheap way to test for dangerous chemicals and bacteria in liquid. The pollutant detector, developed in Italy within the framework of the research project...
Spinning-disk Microscope Peers into the Heart of a Cell
LONDON, Oct. 10, 2013 — A new microscopy technique with unprecedented focusing ability will allow structures deep within cells, including viruses and bacteria, to be investigated for the first time.
Frequency Combs Advance Biomedicine
DENVER, June 15, 2012 — Laser frequency combs, first a curiosity but now a practical research tool, are moving beyond physics and optics to advance biomedicine by helping evalulate a novel instrument that kills harmful bacteria without liquid chemicals or high...
Germ-Killing UV LEDs
RALEIGH, N.C., May 23, 2012 — A relatively simple and inexpensive solution to the problem of ultraviolet light-absorption in LED substrates will enable the development of LED devices that use UV light to kill pathogens such as bacteria and viruses. Researchers at North Carolina...
Bringing a Laser to Life
Sep 22, 2011 — Earlier this summer, Harvard University researchers reported the first successful biological laser based on a single living cell. Malte C. Gather and Seok Hyun Yun, whose backgrounds are in physics, not biology, said they understood that lasers play...
Fluorescent Probe Finds S. Aureus Inside Infected Hearts
BOSTON, Aug. 23, 2011 — A novel imaging probe may make it possible to diagnose accurately a dangerous infection of the heart valves. Investigators at Massachusetts General Hospital (MGH) found that the presence of Staphylococcus aureus-associated endocarditis in a mouse...
Laser, Electric Fields Combined for Novel Lab-on-a-Chip Technology
WEST LAFAYETTE, Ind., July 7, 2011 — New technologies that combine a laser with electric fields promise new lab-on-a-chip designs for manipulating bacteria, viruses and DNA in a range of potential applications. A new method, dubbed “hybrid optoelectric manipulation in...
Cell Imaging Improves Under Graphene
MANHATTAN, Kan., March 28, 2011 — A microscopic cloak made of graphene could change the way bacteria and other cells are imaged. Vikas Berry of Kansas State University and his research team are wrapping bacteria with graphene to address challenges with imaging bacteria under...
Selecting CCDs for Raman Spectroscopy
Feb 1, 2011 — Raman spectroscopy is a well-known technique used to identify materials and chemicals. Until the 1980s, most Raman instruments used dedicated monochromators with photomultiplier tube (PMT) detectors.1 These early systems enjoyed the high sensitivity...
Sterilizing with Fluorescent Light
WASHINGTON, Oct. 28, 2010 — The prevalence of methicillin-resistant Staphylococcus aureus (MRSA) infections is well-known, causing an estimated 19,000 deaths yearly in the US and $3 billion to $4 billion in health care costs. What is less well-known is that this increased...
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...
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May 2024
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