Current Biosensor News and Events

Current Biosensor News and Events, Biosensor News Articles.
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Breakthrough in the fight against spruce bark beetles
For the first time, a research team led by Lund University in Sweden has mapped out exactly what happens when spruce bark beetles use their sense of smell to find trees and partners to reproduce with. The hope is that the results will lead to better pest control and protection of the forest in the future. (2021-02-16)

Integrating maths and plant science to explain how plant roots generate a hormone gradient
The research team that developed a biosensor that first recorded that a distinct gradient of the plant growth hormone gibberellin correlated with plant cell size has now revealed how this distribution pattern is created in roots. (2021-02-15)

Biosensors to detect P. jirovecii, responsible for Pneumocystis pneumonia
Currently, the detection of the fungus in patients, who may be asymptomatic carriers until they develop pneumonia, uses the PCR technique, which takes several hours and requires adequate facilities and qualified personnel. However, the application of nanotechnology now makes it possible to develop more sensitive and efficient biosensors to detect specific sequences corresponding to pathogens responsible for infectious diseases in a shorter time and without the need for major infrastructure. (2021-02-05)

Biosensors require robust antifouling protection
Some promising biosensors and medical devices work well within pristine laboratory environments but may stop working once exposed to real-world conditions. A thick layer of foulants will quickly cover biosensors, and there is no good way to revive them once they quit working. Essentially, a biosensor is only as good as its antifouling properties. In APL Materials, researchers review a variety of approaches developed to combat fouling. (2021-02-02)

Cancer can be precisely diagnosed using a urine test with artificial intelligence
The Korea Institute of Science and Technology(KIST) announced that the collaborative research team led by Dr. Kwan Hyi Lee from the Biomaterials Research Center and Professor In Gab Jeong from Asan Medical Center developed a technique for diagnosing prostate cancer from urine within only twenty minutes with almost 100% accuracy. The research team developed this technique by introducing a smart AI analysis method to an electrical-signal-based ultrasensitive biosensor. (2021-01-21)

A critical review of graphene quantum dots and their application in biosensors
In a paper published in NANO, researchers from Hubei, China discuss the top-down and bottom-up strategies for the synthesis of Graphene quantum dots (GQDs). The respective advantages and disadvantages of these methods are summarized. With regard to some important or novel ones, the mechanisms are proposed for reference. In addition, the application of GQDs in biosensors is highlighted in detail. (2021-01-20)

Pillar-like molecules as biosensors for metabolites
Researchers at Kanazawa University report in Communications Chemistry that a molecule known as pillar[6]arene can form a host-guest compound with a cancer-associated metabolite. The phenomenon can be used to efficiently detect the metabolite in crude biological samples, which is important for preventing and treating metabolic syndrome and associated pathologies. (2021-01-11)

New serological assay provides rapid, accurate testing for SARS-CoV-2 antibodies
Researchers at UC Santa Cruz have developed a novel serological assay for the detection of antibodies to SARS-CoV-2, the coronavirus that causes COVID-19. Researchers say the new method is as accurate as the most reliable antibody tests currently available, but is less complex and can be performed much faster. (2020-12-10)

Hydrogels with fine-toothed molecular combs may make enduring glucose-monitoring implants
In a new study, published online in the journal American Chemical Society (ACS) Applied Polymer Materials, scientists at Texas A&M University reported they have designed a hydrogel membrane that may be used to house optical glucose sensing materials, toward building a biosensor for monitoring sugar levels in diabetics. (2020-12-09)

Paper-based electrochemical sensor can detect COVID-19 in less than five minutes
A team from the University of Illinois at Urbana-Champaign's Grainger College of Engineering has developed a rapid, ultrasensitive test using a paper-based electrochemical sensor that can detect the presence of the virus in less than five minutes. It uses a graphene biosensor and is adaptable to other viruses. (2020-12-07)

A semiconductor chip detects antigen concentrations at 1 parts per quadrillion molar mass
A chip, which can sense antigens at one part per quadrillion molar mass, was created. Antigens derived from diseases and present in blood and saliva were adhered onto the surface of a flexibly deformable nanosheet. The amount of force generated during the interaction between adhered antigens was then converted into nanosheet deformation information in order to successfully detect specific antigens. This sensor chip allows antigen and antibody tests to be carried out from home. (2020-12-01)

Grabbing viruses out of thin air
Materials that convert mechanical into electrical or magnetic energy could open the door to a future of wearable and structure-integrated virus sensors. (2020-11-25)

New protein imaging method paves way for next generation biomaterials and tissue analysis
Scientists have established a new method to image proteins that could lead to new discoveries in disease through biological tissue and cell analysis and the development of new biomaterials that can be used for the next generation of drug delivery systems and medical devices. (2020-11-17)

This red light means 'go' for medical discoveries
With a little tweak of the color palette, University of Virginia researchers have made it easier for scientists to unravel the mysteries of disease and develop new treatments. (2020-10-20)

Cartilage-Inspired, Lipid-Based and Super Slippery Synthetic Hydrogels
Drawing inspiration from the mechanisms that lubricate the cartilage in our joints over a lifetime of wear, researchers designed extremely slippery hydrogels with self-renewing, lipid-based boundary layers, which result in a near 100-fold reduction in friction and wear over other hydrogels. (2020-10-15)

COVID-19 rapid test has successful lab results, research moves to next stages
Rapid detection of the SARS-CoV-2 virus, in about 30 seconds following the test, has had successful preliminary results in Mano Misra's lab at the University of Nevada, Reno. The test uses a nanotube-based electrochemical biosensor, a similar technology that Misra has used in the past for detecting tuberculosis and colorectal cancer as well as detection of biomarkers for food safety (2020-10-14)

Color-coded biosensor illuminates in real time how viruses attack hosts
All viruses can only do damage by replicating inside the cells of another organism, their host. For the first time, a Colorado State University team has shown an important mechanism in this host-attacking process, at the single-molecule level in living cells. (2020-09-24)

Potential target identified for migraine therapy
Researchers at Tokyo Medical and Dental University (TMDU) in Japan have identified the protein GLT-1 as the neurotransmitter glutamate transporter in the brain that is related to cortical spreading depression, a pathological condition that underlies migraines. The researchers found that mice lacking GLT-1, but not other glutamate receptors, were more susceptible to cortical spreading depression than were controls. GLT-1 might therefore be a potential target for migraine therapy. (2020-09-17)

New dopamine sensors could help unlock the mysteries of brain chemistry
In 2018, Tian Lab at UC Davis Health developed dLight1, a single fluorescent protein-based biosensor. This sensor allows high resolution, real-time imaging of the spatial and temporal release of dopamine in live animals. Now, the team expanded the color spectrum of dLight1 to YdLight1 and RdLight1. The increased light penetration and imaging depth of these variants provide enhanced dopamine signal quality allowing researchers to optically dissect dopamine's release and model its effects on neural circuits. (2020-09-15)

Pot of gold engineered to help with early disease detection
University of Queensland researchers have developed biosensors that use nanoengineered porous gold which more effectively detect early signs of disease, potentially improving patient outcomes. (2020-08-24)

Watching changes in plant metabolism -- live
Almost all life on Earth, e.g. our food and health, depend on metabolism in plants. To understand how these metabolic processes function, researchers at M√ľnster University with the participation of the University of Bonn are studying key mechanisms in the regulation of energy metabolism. A new method of in vivo biosensor technology has enabled them to monitor in real time what effects environmental changes have on the central metabolism of the model plant Arabidopsis thaliana. (2020-08-14)

Aerosol-printed graphene unveiled as low cost, faster food toxin sensor
Researchers in the USA have developed a graphene-based electrochemical sensor capable of detecting histamines (allergens) and toxins in food much faster than standard laboratory tests. The team used aerosol-jet printing to create the sensor. The ability to change the pattern geometry on demand through software control allowed rapid prototyping and efficient optimization of the sensor layout. (2020-06-10)

Wearable sensor may help to assess stress in healthcare workers
A wearable biosensor may help monitor stress experienced by healthcare professionals, according to a study published in Physiological Reports. (2020-06-03)

New biosensor visualizes stress in living plant cells in real time
Plant biologists have developed a new nanosensor that monitors foundational mechanisms related to stress and drought. The new biosensor allows researchers to analyze changes in real time as they happen involving kinases, enzymes that catalyze key biological activities in proteins. Certain kinases are essential since they are known to be activated in response to drought conditions, triggering the protective closure of small pores on leaf surfaces known as stoma. (2020-06-01)

New optical biosensor system may help round-the-clock management of gout
In a recent article published in the February issue of the journal sensors, researchers at Texas A&M University have reported a technology that might help people with gout disease monitor their symptoms better. They said their minimally invasive biosensor system may hold the key to future point-of-care therapies centered around personal management of gout, and possibly other conditions. (2020-05-11)

WashU engineer awarded federal funding for rapid COVID-19 test
Engineers at the McKelvey School of Engineering at Washington University in St. Louis have received federal funding for a rapid COVID-19 test using a newly developed technology called plasmonic-fluor. (2020-04-20)

Saliva test for cannabis could someday help identify impaired drivers (video)
Those who consume alcohol and drive are often subjected to roadside stops, breathalyzer tests and stiff penalties if their blood alcohol content exceeds certain limits. Currently, no such test exists for cannabis intoxication, although the substance can impair driving. Now, scientists report a convenient saliva test for cannabis levels that might someday be used at roadside stops. The researchers will present their results today at the American Chemical Society Spring 2020 National Meeting & Exposition. (2020-03-30)

World's first ultrasound biosensor created in Australia
Most implantable monitors for drug levels and biomarkers invented so far rely on high tech and expensive detectors such as CT scans or MRI. Now Melbourne, Australia researchers have developed the first biosensor that can be used in vivo, inside a body, able to emit signals that can be detected by common ultrasound scanners. (2020-03-23)

Thinking in acids and bases
Researchers from the National Institute for Physiological Sciences in Okazaki designed and tested a probe to track brain pH in mice during a visual task. The new proton image sensor has increased spatial and temporal accuracy compared with previous techniques, and revealed distinct patterns of pH changes in the primary visual cortex that were induced by different stimulus patterns, making it a valuable tool for examining the role of pH in neurotransmission. (2020-03-06)

Biometric devices help pinpoint factory workers' emotions and productivity
Happiness, as measured by a wearable biometric device, was closely related to productivity among a group of factory workers in Laos, reveals a recent study. (2020-03-02)

Blood and sweat: Wearable medical sensors will get major sensitivity boost
Scientists explain how to increase the sensitivity of biosensors to the point where they can be integrated into smartphones, smart watches, and other wearable devices. The proposed solution can be not only easily fabricated but also integrated with materials like graphene oxide for providing adsorption of the biomolecules on the sensitive part of the optical elements. (2020-02-13)

Blood-based multiplexed diagnostic sensor helps to accurately detect Alzheimer's disease
A research team at KAIST reported clinically accurate multiplexed electrical biosensor for detecting Alzheimer's disease by measuring its core biomarkers using densely aligned carbon nanotubes. (2020-02-11)

'Wristwatch' monitors body chemistry to boost athletic performance, prevent injury
Engineering researchers have developed a device the size of a wristwatch that can monitor an individual's body chemistry to help improve athletic performance and identify potential health problems. The device can be used for everything from detecting dehydration to tracking athletic recovery, with applications ranging from military training to competitive sports. (2020-02-03)

Portable device helps doctors diagnose sepsis faster
EPFL researchers have developed a highly sensitive and portable optical biosensor that stands to accelerate the diagnosis of fatal conditions like sepsis. It could be used by ambulances and hospitals to improve the triage process and save lives. (2020-01-23)

Illuminating the world of nanoparticles
Scientists at the Okinawa Institute of Science and Technology Graduate University (OIST) have developed a light-based device that can act as a biosensor, detecting biological substances in materials; for example, harmful pathogens in food samples. (2020-01-08)

Plastic biosensor finds sweet success
Medical diagnostic device extracts energy from sugars naturally present in the body to drive its glucose-sensing circuitry. (2019-12-16)

Chip-based optical sensor detects cancer biomarker in urine
For the first time, researchers have used a chip-based sensor with an integrated laser to detect very low levels of a cancer protein biomarker in a urine sample. The new technology is more sensitive than other designs and could lead to non-invasive and inexpensive ways to detect molecules that indicate the presence or progression of a disease. (2019-12-04)

Using gene scissors to detect diseases
Researchers present sensor prototype that can rapidly, precisely, and cost-effectively measure molecular signals for cancer. (2019-11-25)

Better biosensor technology created for stem cells
A Rutgers-led team has created better biosensor technology that may help lead to safe stem cell therapies for treating Alzheimer's and Parkinson's diseases and other neurological disorders. The technology, which features a unique graphene and gold-based platform and high-tech imaging, monitors the fate of stem cells by detecting genetic material (RNA) involved in turning such cells into brain cells (neurons), according to a study in the journal Nano Letters. (2019-11-11)

Study points to new weapon in fight against lethal fungi
Researchers at Australia's Monash University have gained insights into how nanoparticles could develop a biosensor to prevent deadly diseases contracted on medical equipment, such as catheters. (2019-11-09)

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