Samples are precious resources and integral to the research process. The information derived from them is dependent on their quality, integrity and consistency. And, many samples represent a scientist’s investment in and trust of the biomedical research process. Yet, it is not unusual for samples to go missing, to find that their labels have fallen off or that they have become unusable.
Researchers from North Carolina State Univ. have developed a computational tool designed to...
Scientists who study past pandemics, such as the 14th-century Black Death that devastated much...
Artificial photosynthesis, in which we emulate the process used by nature to capture energy from...
A bit of pressure from a new shrinking, sponge-like gel is all it takes to turn transplanted unspecialized cells into cells that lay down minerals and begin to form teeth. The bioinspired gel material could one day help repair or replace damaged organs, such as teeth and bone, and possibly other organs as well.
Protein from a small, tasty mollusk inspired Michigan Technological Univ.’s Bruce P. Lee to invent a new type of hydrogel actuator. Hydrogels are soft networks of polymers with high water content, like jello. Because of their soft, gentle texture, they have the potential to interact safely with living tissues and have applications in a number of medical areas, including tissue engineering.
Imagine driving on a dark road. In the distance you see a single light. As the light approaches it splits into two headlights. That’s a car, not a motorcycle, your brain tells you. A new study found that neural circuits in the brain rapidly multitask between detecting and discriminating sensory input, such as headlights in the distance.
Rice Univ. researchers have developed a theoretical approach to analyze the process by which protein building blocks form the biopolymer skeletons of living cells. The cytoskeleton, made of fibers and microtubules, gives a cell its shape and provides the “roads” along which proteins and other cargoes travel.
Scientists have modified genes in the blood cells of HIV patients to help them resist the AIDS virus, and say the treatment seems safe and promising. The results give hope that this approach might one day free at least some people from needing medicines to keep HIV under control, a form of cure.
To fool predators, some butterflies create wing color patterns that make them resemble their unpalatable cousins. Only recently have scientists been unraveling how they do that, and now researchers have identified the gene that does the trick for an Asian swallowtail.
One of the concerns for astronauts during future extended spaceflights will be the onslaught of eye-damaging radiation, and plants that contain carotenoids would help mitigate that harm. According to a new study by researchers at the Univ. of Colorado Boulder, exposing leafy vegetables grown during spaceflight to a few bright pulses of light daily could increase the amount of eye-protecting nutrients produced by the plants.
According to a collaborative study by scientists in five countries, rate of change in the thickness of the brain’s cortex is an important factor associated with a person’s change in IQ. The study has potentially wide-ranging implications for the pedagogical world and for judicial cases in which the defendant’s IQ score could play a role in determining the severity of the sentence.
Researchers have revived a giant virus more than 30,000 years old, recovered from the permafrost of northeast Siberia. It is a new kind of giant virus, joining a group that was first discovered 10 years ago. But the virus poses no threat to people, only amoebas.
For people whose hands shake uncontrollably due to a medical condition, just eating can be a frustrating and embarrassing ordeal, enough to keep them from sharing a meal with others. But a small new study conducted at the Univ. of Michigan Health System suggests that a new handheld electronic device can help such patients overcome the hand shakes caused by essential tremor, the most common movement disorder.
Researchers from ETH Zurich and the Univ. of Tubingen in Europehave recently described a process that suppresses the formation of methane in soils that are rich in humic substances. The soils act as a battery, releasing to and accepting electrons from soil bacteria depending on the presence of oxygen. The study shows that electron transfer to and from humic substances is an important process with global implications for methane release.
Finding treatments for advanced stage cancer isn’t easy. Therefore, early detection methods are paramount in the fight against the disease. Motivated by the opportunity to intervene as early as possible in the course of cancer, Dr. Muneesh Tewari, a Univ. of Michigan researcher, has been studying the diagnostic potential of blood-based biomarkers.
Before doctors like Matthias Kretzler can begin using the results of molecular research to treat patients, they need science to find an effective way to match genes with the specific cells involved in disease. As Kretzler explains, finding that link would eventually let physicians create far more effective diagnostic tools and treatments.
The viability of the bioenergy crops industry could be strengthened by regulatory efforts to address nonpoint source pollution from agricultural sources. That, in turn, means that the industry should be strategic in developing metrics that measure the ability to enact positive changes in agricultural landscapes, particularly through second-generation perennial crops, according to a paper by a Univ. of Illinois expert in bioenergy law.
Shortly following the 9/11 terror attack in 2001, letters containing anthrax spores were mailed to news outlets and government buildings killing five people and infecting 17 others. According to a 2012 report, the bioterrorism event cost $3.2 million in cleanup and decontamination. At the time, no testing system was in place that officials could use to screen the letters.
If you’ve run out of drinking water during a lakeside camping trip, there’s a simple solution: Break off a branch from the nearest pine tree, peel away the bark and slowly pour lake water through the stick. The improvised filter should trap any bacteria, producing fresh, uncontaminated water. In fact, a team has discovered that this low-tech filtration system can produce up to 4 L of drinking water a day.
Visual acuity is sharpest for rats and mice when the animals are looking down. Researchers have found that rodents can learn tasks in a fourth to a sixth of the usual number of repetitions when visual stimuli are projected onto the floor of the maze rather than onto the walls.
The annual ritual of visiting a doctor’s office or health clinic to receive a flu shot may soon be outdated, thanks to the findings of a new study. The research, which involved nearly 100 people recruited in the metropolitan Atlanta area, found that test subjects could successfully apply a prototype vaccine patch to themselves.
At a recent two-day meeting, the Food and Drug Administration heard from supporters and opponents of a provocative new technique meant to prevent children from inheriting debilitating diseases. The method creates babies from the DNA of three people, and the agency is considering whether to greenlight testing in women who have defective genes.
Laboratory success doesn’t always translate to real-world success. A team of Michigan State Univ. scientists, however, has invented a new technology that increases the odds of helping algae-based biofuels cross that gap and come closer to reality. The environmental photobioreactor (ePBR) system is the world’s first standard algae growing platform, one that simulates dynamic natural environments.
Using an inexpensive 3-D printer, biomedical engineers have developed a custom-fitted, implantable device with embedded sensors that could transform treatment and prediction of cardiac disorders. An international team has created a 3-D elastic membrane made of a soft, flexible, silicon material that is precisely shaped to match the heart’s epicardium, or the outer layer of the wall of the heart.
It has long been known that free, ionic silver particles can be highly toxic to aquatic organisms. Yet we a lack of detailed knowledge about the doses required to trigger a response and how the organisms deal with the stress. To learn more about the cellular processes, scientists in Switzerland subjected algae to a range of silver concentrations. The results are reassuring, but the presence of other stressors could compound the problem.
Women with estrogen-responsive breast cancer who consume soy protein supplements containing isoflavones to alleviate the side effects of menopause may be accelerating progression of their cancer, changing it from a treatable subtype to a more aggressive, less treatable form of the disease, new research suggests.
Cells in our body are constantly dividing to maintain our body functions. At each division, our DNA code and a whole machinery of supporting components has to be faithfully duplicated to maintain the cell’s memory of its own identity. Researchers in Denmark have developed a new technology that reveal the dynamic events of this duplication process and the secrets of cellular memory.
Defective blood coagulation is one of the leading causes of preventable death in patients who have suffered trauma or undergone surgery. To provide caregivers with timely information about the clotting properties of a patient’s blood, researchers have developed an optical device that requires only a few drops of blood and a few minutes to measure the key coagulation parameters that can guide medical decisions.
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