Lab-grown tissues could one day provide new treatments for injuries and damage to the joints, including articular cartilage, tendons and ligaments. Cartilage, for example, is a hard material that caps the ends of bones and allows joints to work smoothly. Univ. of California, Davis biomedical engineers, exploring ways to toughen up engineered cartilage and keep natural tissues strong outside the body, report new developments.
A significant breakthrough in laser technology has been reported by Lawrence Berkeley National Laboratory and the Univ. of California, Berkeley. The team of scientists have developed a unique microring laser cavity that can produce single-mode lasing even from a conventional multi-mode laser cavity.
Despite safety concerns about equipment failure, a majority of drivers on three continents have high expectations for autonomous vehicles. Building on an earlier study on public opinion regarding self-driving vehicles in the U.S., Great Britain and Australia, a team from the Univ. of Michigan Transportation Research Institute expanded their survey to include more than 1,700 respondents in India, China and Japan.
Most modern cryptographic schemes rely on computational complexity for their security. In principle, they can be cracked, but that would take a prohibitively long time, even with enormous computational resources. There is, however, another notion of security—information-theoretic security—which means that even an adversary with unbounded computational power could extract no useful information from an encrypted message.
Nikon Instruments, Inc. has revealed the winners of the 40th annual Nikon Small World Photomicrography Competition, awarding first prize to veteran competitor Rogelio Moreno of Panama for capturing a rarely seen image of a rotifer’s open mouth interior and heart-shaped corona.
With fears growing over chemical and biological weapons falling into the wrong hands, scientists are developing microrockets to fight back against these dangerous agents, should the need arise. In ACS Nano, they describe new spherical micromotors that rapidly neutralize chemical and biological agents and use water as fuel.
By remotely "combing" the atmosphere with a custom laser-based instrument, researchers from NIST, in collaboration with researchers from the National Oceanic and Atmospheric Administration (NOAA), have developed a new technique that can accurately measure—over a sizeable distance—amounts of several of the major "greenhouse" gases implicated in climate change.
People with muscular dystrophy could one day assess the effectiveness of their medication with the help of a smartphone-linked device, a new study in mice suggests. The study used a new method to process ultrasound imaging information that could lead to hand-held instruments that provide fast, convenient medical information.
Imagine being able to precisely control specific tissues of a plant to enhance desired traits without affecting the plant’s overall function. Thus a rubber tree could be manipulated to produce more natural latex. Trees grown for wood could be made with higher lignin content, making for stronger yet lighter-weight lumber.
A team led by the Lawrence Livermore National Laboratory scientists has created a new kind of ion channel consisting of short carbon nanotubes, which can be inserted into synthetic bilayers and live cell membranes to form tiny pores that transport water, protons, small ions and DNA. These carbon nanotube “porins” have significant implications for future health care and bioengineering applications.
Astronomers have caught their first glimpse of the invisible magnetic fields that sculpt solar systems. Looking at a bright, nearby baby star and the dust swirling in its cradle, astronomers from the Univ. of Illinois and six collaborating institutions were able to make out the shape of the magnetic field surrounding the star.
As transistors get smaller, they also grow less reliable. Increasing their operating voltage can help, but that means a corresponding increase in power consumption. With information technology consuming a steadily growing fraction of the world’s energy supplies, some researchers and hardware manufacturers are exploring the possibility of simply letting chips botch the occasional computation.
Given today’s widespread use of Raman spectroscopy, it can be hard to believe Raman was a highly specialized analytical technique for most of its history. The technique’s potential was recognized from the beginning: When Raman scattering was first observed in 1928, it was widely believed to be one of the most important scientific discoveries of the 20th century to date.
An unmanned commercial supply rocket bound for the International Space Station exploded moments after liftoff Tuesday evening, with debris falling in flames over the launch site in Virginia. No injuries were reported following the first catastrophic launch in NASA's commercial spaceflight effort.
In the on-going effort to develop advanced biofuels as a clean, green and sustainable source of liquid transportation fuels, researchers at the U.S. Dept. of Energy’s Joint BioEnergy Institute have identified microbial genes that can improve both the tolerance and the production of biogasoline in engineered strains of Escherichia coli.
Rice Univ. researchers have delivered a scientific one-two punch with a pair of papers that detail how synthetic collagen fibers self-assemble via their sticky ends. Collagen is the most common protein in mammals, a major component of bone and the fibrous tissues that support cells and hold organs together. Discovering its secrets may lead to better synthetic collagen for tissue engineering and cosmetic and reconstructive medicine.
If the majority of light-duty vehicles in the U.S. ran on higher-octane gasoline, the automotive industry as a whole would reduce its carbon dioxide emissions by 35 million tons per year, saving up to $6 billion in fuel costs, according to a new analysis by Massachusetts Institute of Technology researchers.
U.S. health officials are recommending that people who are at highest risk for coming down with Ebola avoid commercial travel or attending large public gatherings, even if they have no symptoms. The Centers for Disease Control and Prevention issued the updated advice to state and local officials on Monday.
As a laboratory technician or director, knowing the current status of your instrument or sample runs is critical for your laboratory’s operations and productivity. Through the rapid increase in machine-to-machine connectivity, real-time instrument monitoring services designed to offer visibility and remote control of these instruments has become an enabler in cost savings, efficiency gains, revenue opportunities and competitive advantage.
Like a slumbering dragon, HIV can lay dormant in a person’s cells for years, evading medical treatments only to wake up and strike at a later time, quickly replicating itself and destroying the immune system. Scientists at the Salk Institute have uncovered a new protein that participates in active HIV replication. The new protein, called Ssu72, is part of a switch used to awaken HIV-1 from its slumber.
In early drug discovery, you need a starting point. In a new research paper published in PLOS-Neglected Tropical Diseases, a team of researchers present hundreds of such starting points for potentially treating Human African trypanosomiasis, or sleeping sickness, a deadly disease that affects thousands of people annually.
Lasers are so deeply integrated into modern technology that their basic operations would seem well understood. CD players, medical diagnostics and military surveillance all depend on lasers. Re-examining longstanding beliefs about the physics of these devices, Princeton Univ. engineers have now shown that carefully restricting the delivery of power to certain areas within a laser could boost its output by many orders of magnitude.
The governors of New York and New Jersey are at odds with scientists over Ebola as they back 21-day quarantines for medical workers returning from West Africa, while the nation's top infectious-disease expert warns that such restrictions are unnecessary and could discourage volunteers from aiding disease-ravaged countries.
Traditional forms of temperature measurement, such as thermocouples and spot pyrometers, often don’t offer the resolution or speed required to fully characterize high-speed thermal applications. This article explores the advantages of high-speed thermal measurement with infrared cameras.
In many areas of the developing world, there’s limited access to electricity, and many places have never had any type of power infrastructure. This presents a challenge for aid workers and doctors. In the recent past, vaccines that needed to be stored at cold, relatively constant temperatures couldn’t be taken into the remote areas where they were needed most.