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Researchers have developed 2D perovskite memristors that strengthen electrical resistance in response to light, mimicking learning in biological synapses. This could enable neuromorphic AI that learns autonomously through experience.
Researchers have created an artificial synapse device that displays plasticity and learning ability by merging a photoelectric perovskite material with an organic ferroelectric polymer. The advance offers a pathway to intelligent electronics and insights into the brain.
Researchers develop 3D-printed microbots that harness living bacteria as onboard engines to enable wireless control using only structured light patterns.
Phase change memory is an emerging technology with great potential for advancing analog in-memory computing, particularly in deep neural networks and neuromorphic computing.
Researchers introduce spin orbit torque (SOT) devices to experimentally realize in-memory analogue mathematical operations such as summation, subtraction and four-quadrant multiplication, to implement general-purpose applications such as image or signal processing for edge computing. In addition to nonvolatility and scalability, the CMOS-compatible SOT technique further possesses low energy consumption, high speed and endurance. Therefore, SOT devices offer an avenue for dense in-memory analogue computing paradigms.
One convenient way to manipulate nanoscale objects with remote controllability is actuation and propulsion by light, which is largely based on optical and photothermal-induced forces. Unfortunately, the output of optical and photothermal-induced forces is small and speed is slow. This changes with a novel and intriguing nanoactuation system: plasmonic nanodynamite. This system can be optically triggered to eject gold nanobullets with an initial speed of up to 300 m/s.
The controlled rotation of micro- and nanoscale objects plays a crucial role in sensing, imaging, biomedicine, and manufacturing. What makes light-driven micro- and nanorotors so promising for many applications is their non-contact, fuel-free operation. It has remained challenging for simple and low-power optics to achieve light-driven rotation of a wide range of objects, including optically symmetric synthetic particles and biological cells. A novel platform elegantly addresses this issue by achieving the rotation of various particles and live cells using an arbitrary low-power laser beam.
Magnetic manipulation of nano- and microscale objects is a remote and non-invasive technology with potentially numerous applications in material sciences and life sciences, such as for instance drug delivery. However, a limitation of this technology is that it can only be applied to certain materials with magnetic response, i.e., ferromagnetic or superparamagnetic materials. A new technique allows to incorporate magnetic nanoparticles onto the nonmagnetic skeleton.