World first experiments on sensor that may revolutionise everything from medical devices to unmanned vehicles
The new sensor - capable of detecting vibrations of living cells - may revolutionise everything from medical devices to unmanned vehicles.
World first experiments at the University of Queensland have combined modern nanofabrication and nanophotonics techniques to build the first ultraprecise ultrasound sensors on a silicon chip.
According to lead author Dr Sahar Basiri-Esfahani, a Sêr Cymru II Fellow at Swansea University, the impressive accuracy of the technology may change how we understand biology.
"We'll soon have the ability to listen to the sound emitted by living bacteria and cells," she said.
"This is a particularly attractive application, as it could fundamentally improve our understanding of how these small biological systems function," "And a deeper understanding of these biological systems may lead to new treatments, so we're looking forward to seeing what future applications emerge." Dr Basiri-Esfahani said.
Professor Warwick Bowen, from UQ's Precision Sensing Initiative and the Australian Centre for Engineered Quantum Systems said that the leap forward may usher in a host of exciting new technologies. "This is a major step forward, since accurate ultrasound measurement is critical for a range of applications," he said.
"Ultrasound is currently used for medical ultrasound, commonly to examine pregnant women, as well as for high resolution biomedical imaging to detect tumours and other anomalies.
"It's also commonly used for spatial applications, like in the sonar imaging of underwater objects or in the navigation of unmanned aerial vehicles. "Improving these applications requires smaller higher precision sensors, and with this new technique, that's exactly what we've been able to develop."
The new ultrasound-sensing technology, for the first time, reaches the regime where its noise is dominated by the random miniscule forces from surrounding air molecules.
"We've developed a near perfect ultrasound detector, hitting the limits of what the technology is actually capable of achieving," Professor Bowen said.
"We're now able to measure ultrasound waves that apply tiny forces - comparable to the gravitational force on a virus - and we can do this with sensors smaller than a millimetre across."
The research was supported by the Australian Research Council, the European Union's Horizon 2020 research and innovation programme (Marie Skłodowska-Curie Actions COFUND), the Welsh Government through the European Regional Development Fund (Sêr Cymru Programme), and the United States Air Force Office of Scientific Research.
Delyth Purchase | EurekAlert!
On Mars, sands shift to a different drum
24.05.2019 | University of Arizona
New Boost for ToCoTronics
23.05.2019 | Julius-Maximilians-Universität Würzburg
A new assessment of NASA's record of global temperatures revealed that the agency's estimate of Earth's long-term temperature rise in recent decades is accurate to within less than a tenth of a degree Fahrenheit, providing confidence that past and future research is correctly capturing rising surface temperatures.
The most complete assessment ever of statistical uncertainty within the GISS Surface Temperature Analysis (GISTEMP) data product shows that the annual values...
Physicists at the University of Basel are able to show for the first time how a single electron looks in an artificial atom. A newly developed method enables them to show the probability of an electron being present in a space. This allows improved control of electron spins, which could serve as the smallest information unit in a future quantum computer. The experiments were published in Physical Review Letters and the related theory in Physical Review B.
The spin of an electron is a promising candidate for use as the smallest information unit (qubit) of a quantum computer. Controlling and switching this spin or...
Engineers at the University of Tokyo continually pioneer new ways to improve battery technology. Professor Atsuo Yamada and his team recently developed a...
With a quantum coprocessor in the cloud, physicists from Innsbruck, Austria, open the door to the simulation of previously unsolvable problems in chemistry, materials research or high-energy physics. The research groups led by Rainer Blatt and Peter Zoller report in the journal Nature how they simulated particle physics phenomena on 20 quantum bits and how the quantum simulator self-verified the result for the first time.
Many scientists are currently working on investigating how quantum advantage can be exploited on hardware already available today. Three years ago, physicists...
'Quantum technologies' utilise the unique phenomena of quantum superposition and entanglement to encode and process information, with potentially profound benefits to a wide range of information technologies from communications to sensing and computing.
However a major challenge in developing these technologies is that the quantum phenomena are very fragile, and only a handful of physical systems have been...
29.04.2019 | Event News
17.04.2019 | Event News
15.04.2019 | Event News
24.05.2019 | Physics and Astronomy
24.05.2019 | Medical Engineering
24.05.2019 | Life Sciences