Using clusters of gold atoms and a microscopic lever, University of Toronto chemists have created a tiny circuit critical to the future of electronic engineering.
"When things are this small, they are fantastically sensitive," says Professor Al-Amin Dhirani. "Such a circuit could make possible a bio-sensor that is activated by the reaction of just one molecule." This has the potential for detecting important biological molecules including DNA, he notes.
Dhirani found that when the metal tip of an electrical source is placed near a lever coated in gold nanoparticles, electrons jump from the tip to the nanoparticles. This pulls the lever toward the tip. His finding allows researchers to detect the presence of a single electron in a circuit. Up until now, researchers could show only the overall electron flow in nanoparticles.
Nicolle Wahl | EurekAlert!
Insect Antibiotic Provides New Way to Eliminate Bacteria
15.11.2018 | Universität Zürich
New findings help to better calculate the oceans’ contribution to climate regulation
15.11.2018 | Jacobs University Bremen gGmbH
Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.
Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...
Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.
In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...
On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.
When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure
Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...
Physicists at ETH Zurich demonstrate how errors that occur during the manipulation of quantum system can be monitored and corrected on the fly
The field of quantum computation has seen tremendous progress in recent years. Bit by bit, quantum devices start to challenge conventional computers, at least...
09.11.2018 | Event News
06.11.2018 | Event News
23.10.2018 | Event News
15.11.2018 | Information Technology
15.11.2018 | Life Sciences
15.11.2018 | Life Sciences