Diamond nanoparticles get a quantum upgrade with shell inspired by TV technology

New biosensor solves old quantum riddle
By encasing a diamond nanoparticle with a specially engineered shell—a technique inspired by QLED televisions—the team created a quantum biosensor ideal for a living cell. Credit: Jason Smith

Putting hypersensitive quantum sensors in a living cell is a promising path for tracking cell growth and diagnosing diseases—even cancers—in their early stages.

Many of the best, most powerful quantum sensors can be created in small bits of diamond, but that leads to a separate issue: It’s hard to stick a diamond in a cell and get it to work.

“All kinds of those processes that you really need to probe on a molecular level, you cannot use something very big. You have to go inside the cell...

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Detecting the primordial black holes that could be today’s dark matter

Detecting the primordial black holes that could be today's dark matter

Besides particles like sterile neutrinos, axions and weakly interacting massive particles (WIMPs), a leading candidate for the cold dark matter of the universe are primordial black holes—black holes created from extremely dense conglomerations of subatomic particles in the first seconds after the Big Bang.

Primordial black holes (PBHs) are classically stable, but as shown by Stephen Hawking in 1975, they can evaporate via quantum effects, radiating nearly like a blackbody. Thus, they have a lifetime; it’s proportional to the cube of their initial mass. As it’s been 13.8 billion years since the Big Bang, only PBHs with an initial mass of a trillion kilograms or more should have survived to today.

However, it has been suggested that the lifetime of a black hole might be consider...

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Clinical trial shows improvements for spinal cord injuries

The leadership group for the Texas Biomedical Device Center includes, from left, Dr. Michael Kilgard, Dr. Jane Wigginton, Dr. Seth Hays and Dr. Robert Rennaker.

Researchers demonstrated unprecedented rates of recovery for spinal cord injuries. Individuals with incomplete spinal cord injury safely received a combination of stimulation of a nerve in the neck with progressive, individualized rehabilitation. This approach, called closed-loop vagus nerve stimulation (CLV), produced meaningful improvements in arm and hand function in these individuals.

In a new clinical study, researchers from the Texas Biomedical Device Center (TxBDC) at The University of Texas at Dallas demonstrated unprecedented rates of recovery for spinal cord injuries.

In this study, published in the journal Natu...

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Robots learning without us? New study cuts humans from early testing

Humans no longer have exclusive control over training social robots to interact effectively, thanks to a new study from the University of Surrey and the University of Hamburg.

The study, which will be presented at this year’s IEEE International Conference on Robotics and Automation (ICRA), introduces a new simulation method that lets researchers test their social robots without needing human participants, making research faster and scalable.

Using a humanoid robot, the research team developed a dynamic scanpath prediction model to help the robot predict where a person would look in a social setting.

The model was tested using two publicly available datasets, and the researchers demonstrated that humanoid robots were capable of mimicking human-like eye movements.

Dr Di Fu, ...

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