Credit: @Science China Press
Metallacages prepared via coordination-driven self-assembly have received extensive attention because of their three-dimensional layout and cavity-cored nature. The construction of light-emitting materials employing metallacages as a platform has also gained significant interest due to their good modularity in photophysical properties, which bring emerging applications in fields as diverse as sensing, biomedicine, and catalysis.
However, the luminescence efficiency of conventional luminophores significantly decreases in the aggregate state because they encounter unfavorable aggregation-caused quenching (ACQ). Therefore, it was quite a challenge to fabricate light-emitting metallacages with high luminescence efficiency in various physical states.
In 2001, Tang s group discovered aggregation-induced emission (AIE) phenomenon that some nonluminous or weakly emissive materials in molecular state are highly emissive in aggregate state. The underlying mecha
Northwestern researchers developed a computing device to associate light with pressure, according to a University release. The device operates like a human brain.
The study was published on April 30 in scientific journal Nature Communication and was conducted in collaboration with the University of Hong Kong. The National Science Foundation, the Hong Kong General Research Fund and the National Natural Science Foundation of China funded the project.
The modern computer, while very capable, cannot measure up to the human brain’s ability to execute complex tasks like pattern recognition and motor control, co-author and McCormick Prof. Jonathan Rivnay said in the release. The plasticity of the brain’s synapses are key to these abilities, he added.
Researchers have developed a brain-like computing device that is capable of learning by association.
Similar to how famed physiologist Ivan Pavlov conditioned dogs to associate a bell with food, researchers at Northwestern University and the University of Hong Kong successfully conditioned their circuit to associate light with pressure.
The device’s secret lies within its novel organic, electrochemical “synaptic transistors,” which simultaneously process and store information just like the human brain. The researchers demonstrated that the transistor can mimic the short-term and long-term plasticity of synapses in the human brain, building on memories to learn over time.
With its brain-like ability, the novel transistor and circuit could potentially overcome the limitations of traditional computing, including their energy-sapping hardware and limited ability to perform multiple tasks at the same time. The brain-like device also has higher fault tolerance, continuing to opera
Communist China Builds Hundreds of Virology Labs as Documents Reveal Wuhan Lab Researched 143 New Pathogens Starting in 2012 visiontimes.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from visiontimes.com Daily Mail and Mail on Sunday newspapers.
Evidence Reveals That Military Team Collaborated With Lab Where COVID-19 Pandemic Originated
The Chinese regime has said its controversial virology institute had no relationship with the military, but the institute worked with military leaders on a government-sponsored project for almost a decade.
The Wuhan Institute of Virology (WIV) participated in a project, sponsored by the National Natural Science Foundation of China (NSFC) a regime-funded scientific research institution from 2012 to 2018. The project was comprised of a team of five military and civil experts, who conducted research at WIV labs, military labs, and other civil labs leading to “the discovery of animal pathogens [biological agents that causes disease] in wild animals.”