Microfluidic circuit for pulsatile filtration of extracellular vesicles from whole blood samples
Extracellular vesicles (EVs) are cell-secreted lipid bilayer bioparticles with a diameter of 30 to 250 nm. They are a promising source of biomarkers for liquid biopsies for early cancer diagnosis and real-time monitoring of tumor development. However.....»»
Electrical impedance tomography plus extracellular voltage activation technique simplifies drug screening
When developing new drugs, understanding their effects on ion channels in the body, such as the human ether-a-go-go-related gene (hERG) ion channel found in neurons and heart muscle cells, is critical. Blocking hERG channels can disrupt a normal hear.....»»
SMS Stealer malware targeting Android users: Over 105,000 samples identified
Zimperium’s zLabs team has uncovered a new and widespread threat dubbed SMS Stealer. Detected during routine malware analysis, this malicious software has been found in over 105,000 samples, affecting more than 600 global brands. SMS Stealer.....»»
Engineered microbes found to repel mosquitoes
Genetically-engineered human skin bacteria can make mice less attractive to mosquitoes for 11 days. Mosquitoes transmit a host of deadly diseases, including malaria, West Nile, dengue, yellow fever, and Zika. Female mosquitoes on the hunt for a blood.....»»
Weight loss drugs like Ozempic can also help people stop smoking
Drugs containing semaglutide, like Ozempic and Wegovy, are intended to help people with diabetes lower their blood glucose levels while also reducing the risk of … The post Weight loss drugs like Ozempic can also help people stop smoking appear.....»»
ACE-ing protein detection in single cells
Since the 1950s, researchers have used a famous method invented by Wallace Coulter known as "flow cytometry" to characterize different types of immune cells in research studies and in blood samples from human individuals. This has enabled a much deep.....»»
Parasite engineered to deliver therapy proteins to nerve cells
An international team of neurobiologists has developed a way to use a parasite to deliver protein therapies through the blood–brain barrier to treat nerve cell disorders. In their study published in Nature Microbiology, the group engineered the par.....»»
Injury dressings in first-aid kits reveal shark species
Scientists have revealed that injury dressings found in first-aid kits can reliably be used to identify shark species involved in bite incidents by deploying medical gauze to gather DNA samples from aquatic equipment, such as surfboards......»»
Researchers trap atoms, force them to serve as photonic transistors
Researchers at Purdue University have trapped alkali atoms (cesium) on an integrated photonic circuit, which behaves like a transistor for photons (the smallest energy unit of light) similar to electronic transistors. These trapped atoms demonstrate.....»»
Invasive, blood-sucking fish "may hold the key to understanding where we came from," say biologists
One of just two vertebrates without a jaw, sea lampreys that are wreaking havoc in Midwestern fisheries are simultaneously helping scientists understand the origins of two important stem cells that drove the evolution of vertebrates......»»
5th Circuit court upends FCC Universal Service Fund, ruling it an illegal tax
Court says Universal Service fee is "misbegotten tax" that violates Constitution. Enlarge / FCC Chairwoman Jessica Rosenworcel testifies during a House hearing on March 31, 2022, in Washington, DC. (credit: Getty Images | Kevin.....»»
Dealers should adopt some practices now ahead of CARS Rule decision, experts say
The Federal Trade Commission's CARS Rule is on hold pending a legal challenge in the U.S. 5th Circuit Court of Appeals by the National Automobile Dealers Association and Texas Automobile Dealers Association, but dealerships might still wish to take s.....»»
New technique detects THC in saliva in minutes with minimal sample
With just a few drops of saliva and in a few minutes the presence of THC can be detected thanks to a technique developed by the universities of Cordoba and Valencia, making it possible to accelerate the analysis process and to use very small samples.....»»
Method can analyze individual, still-living cells that may contain biomarkers for cancer and other deadly diseases
The Ivanov Lab at Northeastern University is paving the way to a whole variety of diagnostic tests that are possible off of a single blood draw, including—someday—cancer......»»
Stress granules found to play an unsuspected role in blood vessel formation
The behavior of the cells that make up our blood vessels is crucial to our well-being. Conditions such as inflammation, oxygen deprivation and viral infection can stress these cells and disrupt the formation of new, often pathological, blood vessels......»»
Appeals Court denies stay to states trying to block EPA’s carbon limits
The EPA's plan to cut carbon emissions from power plants can go ahead. Enlarge (credit: Bernhardt Lang) On Friday, the US Court of Appeals for the DC Circuit denied a request to put a hold on recently formulated rules th.....»»
EPA’s new power plant emissions rules survive first attempt to kill them
The EPA's plan to cut carbon emissions from power plants can go ahead. Enlarge (credit: Bernhardt Lang) On Friday, the US Court of Appeals for the DC Circuit denied a request to put a hold on recently formulated rules th.....»»
Study links nanoparticles to oxidative stress and neuron death
Researchers at the University of Kentucky have a better understanding of the regulation of extracellular vesicles by oxidative stress and how these vesicles spread oxidative stress and may damage neurons. Extracellular vesicles are nanoparticles rele.....»»
New nanoparticle delivery method targets sickle cell mutations in bone marrow
Current gene therapies to treat sickle cell disease are complex, time-consuming, and are sometimes linked to serious side effects like infertility or blood cancer. To address these challenges, Johns Hopkins researchers have developed special nanopart.....»»
Microfluidic sensors enable real-time detection of multiple heavy metals in water
A group of researchers from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences has designed and developed advanced microfluidic sensor arrays that use fluorescent probes to simultaneously visualize and quantitatively detect m.....»»
Lice cause significant harm to cage-free poultry, study finds
Lice have been found feeding on the skin and blood of free-range chickens, which are infected at much higher rates than caged flocks. This finding could have implications for states like California, where all egg production is cage-free......»»