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Tag: "sensors" at biology news

3-D ultrasound scanner could guide robotic surgeries

...-D ultrasound device including 500 tiny cables and sensors packed into a tube 12 millimeters in diameter -- small enough to be inserted through the incisions required for laparoscopic surgeries http://www.pratt.duke.edu/news/?id=417 . The researchers then showed that the device can produce actual 3-D images...

Researchers to develop ultra-miniature implantable sensors to measure blood flow

...th present tools." Kan noted that these miniature sensors can be as small as 100 microns in length by 100 mi...in diameter. The advantage of such tiny, implanted sensors is that they can provide separate readings for particular organs in a patient. They also can be unob...

The brain, traffic and nano-circuits -- e-Science takes on major challenges

...chnologies to enable data from a network of mobile sensors to be gathered and interpreted. The e-Science technologies developed will be generic enough for use in other applications of mobile sensor networks, for example, climate or weather mapping. Designing nano-circuits The £5.2m NanoCMOS project, led ...

Harmful Algal Blooms monitored from space in Chile

...organisms from space with dedicated 'ocean colour' sensors onboard satellites. The CAP project utilises a combination of near real-time EO data, such as chlorophyll-a pigment concentration, secchi transparency, suspended matter and sea surface temperature, derived from the MERIS instrument onboard ESA's En...

Smell of success for nanobiosensors

...or drugs and bombs at airports, replacing chemical sensors that are only able to detect a single substance. ...

Study shows pine bark naturally decreases severe chronic venous insufficiency

...tration in the lower legs was estimated with small sensors attached to the skin. Pycnogenol® treatment was found to significantly increase tissue oxygen and lower CO2, suggesting a considerable improvement in blood circulation to the legs. Daflon®, in contrast, did not yield any significant effect on the tis...

Sticky surfaces turn slippery with the flip of a molecular light switch

...uid flow in a chip's ultra-tiny channels. And in sensors designed to detect biological agents, the ability to control the polarity of the membrane could help reduce the attachment of unwanted proteins, providing more accurate readings, according to Belfort. ...

Tiny airborne particles are a major cause of climate change

...ogether with Kauffman, he used a network of ground sensors (AERONET) to measure the effect of aerosol concentration on cloud cover. Radiation absorption is less affected by meteorology, so if the skeptics are right and meteorology is the main influence, then the correlation between aerosol absorption and clo...

Sandia work launched on space shuttle shows live cells influence growth of nanostructures

...n laboratory. "Cheap, tiny, and very lightweight sensors of chemical or biological agents could be made fro...ed in a vacuum. To study their use as cell-based sensors for extreme environments, samples of the yeast- and bacteria-containing nanostructures were launched...

First 'encyclopedia' of nuclear receptors reveals organisms' focus on sex, food

...d many other tissue systems. Such receptors act as sensors for hormones and dietary molecules, binding to them to trigger gene expression. Individual nuclear receptors are among the most successful targets for drugs currently available or being developed to treat a number of conditions, including reproduct...

Marine 'dead zone' off Oregon is spreading

...ear by OSU scientists is helping. Dissolved oxygen sensors have been deployed on the sea floor both close to ...n, a new underwater unmanned vehicle equipped with sensors to measure temperature, salinity, chlorophyll and dissolved oxygen is routinely sampling across cent...

Purdue creates new low-cost system to detect bacteria

...as specialized in research to develop new types of sensors that work by analyzing light scattering off objects for applications such as detecting impurities on silicon wafers in computer chip manufacturing and measuring the size and speed of fuel droplets in jet engines. "We adapted some ideas from that re...

In-home sensors spot dementia signs in elderly

...mp; Science University study shows motion and door sensors placed in elders' homes can help track activity pa...y data. Each system included wall-mounted motion sensors placed in every room, door-mounted magnetic contact sensors, and wireless transceivers that sent the...

New crop of technology reveals plant health

...itself a reflection of the plant's health. These sensors communicate their data through specially developed...ns where our system could prove very useful." The sensors and transmitters are two key elements of the system, but its heart is the management software, desig...

Salmonella bacteria use RNA to assess and adjust magnesium levels

...arkable--scientists have been aware for decades of sensors in the cell that can cause molecules to bind to DNA to turn protein production on and off. A riboswitch, however, doesn't rely on anything binding to DNA; instead, the switch is incorporated into messages for construction of proteins. These message...

Oops! Researchers publish new findings on the brain's response to costly mistakes

..., assessing changes in electrical activity through sensors arranged on a mesh cap that is placed on the head. The method is similar to techniques used to study the brains of people with epilepsy or sleep problems, but the electrical signal from the brain is processed in a different way. In prior studies, Geh...

'Genetic network' guards against lethal DNA damage

... then read the microarray to identify which of the sensors found matching barcodes that identified specific yeast cells with specific mutations. If two genes that compensated for each other are knocked out, the yeast cell dies and the microarray doesn't record that cell, Boeke noted. That means the two genes...

Two NIH initiatives launch intensive efforts to find roots of common diseases

... in emerging technologies, such as small, wearable sensors that can measure environmental agents that have contact with the body and individual measures of activity. Devices also will be developed that measure changes in human biology, which can be observed in samples of blood or urine. In aggregate, these n...

U of MN researchers develop way to visualize synchronized interactions of nerve cells in the brain

...ot of light. Georgopoulos used MEG data from 248 sensors to detect the changing interactions over time. The measurements they recorded represent the workings of tens of thousands of brain cells. The large amount of data recorded from each sensor was analyzed over time to view how large groups of active b...

Wound monitor 'sniffs out' infections

...the air emitted from the wound. Using state of the sensors we will be able to detect and diagnose the presence of an infection almost instantaneously." The device will use new hybrid sensor technology with a mobile laboratory-based multi-technology gas sensor array and pattern recognition system, enabling t...

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