Archive for the ‘nanotechnology’ category: Page 10

Nov 1, 2023

Nanowire ‘brain’ network learns and remembers ‘on the fly’

Posted by in categories: nanotechnology, robotics/AI

For the first time, a physical neural network has successfully been shown to learn and remember “on the fly,” in a way inspired by and similar to how the brain’s neurons work.

The result opens a pathway for developing efficient and low-energy machine intelligence for more complex, real-world learning and .

Published today in Nature Communications, the research is a collaboration between scientists at the University of Sydney and University of California at Los Angeles.

Oct 31, 2023

How nanobots and nanomedicine will improve our health

Posted by in categories: biotech/medical, chemistry, computing, health, nanotechnology, quantum physics

Nanotechnology sounds like a futuristic development, but we already have it in the form of CPU manufacturing. More advanced nanotech could be used to create independent mobile entities like nanobots. One of the main challenges is selecting the right chemicals, elements, and structures that actually perform a desired task. Currently, we create more chemically oriented than computationally oriented nanobots, but we still have to deal with the quantum effects at tiny scale.

One of the most important applications of nanotechnology is to create nanomedicine, where the technology interacts with biology to help resolve problems. Of course, the nanobots have to be compatible with the body (e.g. no poisonous elements if they were broken down, etc).

Continue reading “How nanobots and nanomedicine will improve our health” »

Oct 31, 2023

FSS #11 Biotech, Neurotech and AI: Opportunities and Risks

Posted by in categories: biotech/medical, life extension, nanotechnology, neuroscience, policy, robotics/AI

The convergence of Biotechnology, Neurotechnology, and Artificial Intelligence has major implications for the future of humanity. This talk explores the long-term opportunities inherent to these fields by surveying emerging breakthroughs and their potential applications. Whether we can enjoy the benefits of these technologies depends on us: Can we overcome the institutional challenges that are slowing down progress without exacerbating civilizational risks that come along with powerful technological progress?

About the speaker: Allison Duettmann is the president and CEO of Foresight Institute. She directs the Intelligent Cooperation, Molecular Machines, Biotech & Health Extension, Neurotech, and Space Programs, Fellowships, Prizes, and Tech Trees, and shares this work with the public. She founded Existentialhope.com, co-edited Superintelligence: Coordination & Strategy, co-authored Gaming the Future, and co-initiated The Longevity Prize. She advises companies and projects, such as Cosmica, and The Roots of Progress Fellowship, and is on the Executive Committee of the Biomarker Consortium. She holds an MS in Philosophy & Public Policy from the London School of Economics, focusing on AI Safety.

Oct 30, 2023

A physics milestone: Miniature particle accelerator works

Posted by in categories: biotech/medical, nanotechnology

Particle accelerators are crucial tools in a wide variety of areas in industry, research and the medical sector. The space these machines require ranges from a few square meters to large research centers. Using lasers to accelerate electrons within a photonic nanostructure constitutes a microscopic alternative with the potential of generating significantly lower costs and making devices considerably less bulky.

Until now, no substantial energy gains were demonstrated. In other words, it has not been shown that really have increased in speed significantly. A team of laser physicists at Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) has now succeeded in demonstrating the first nanophotonic electron —at the same time as colleagues from Stanford University. The researchers from FAU have now published their findings in the journal Nature.

When people hear “particle accelerator,” most will probably think of the Large Hadron Collider in Geneva, the approximately 27 kilometer long ring-shaped tunnel which researchers from around the globe used to conduct research into unknown elementary particles. Such huge are the exception, however. We are more likely to encounter them in other places in our day to day lives, for example in medical imaging procedures or during radiation to treat tumors.

Oct 28, 2023

Wearable device makes memories and powers up with the flex of a finger

Posted by in categories: energy, health, nanotechnology, wearables

Link :- https://eng.unimelb.edu.au/ingenium/wearable-device-makes-me…f-a-finger

Researchers from the University of Melbourne and RMIT University have invented an experimental wearable device that generates power from a user’s bending finger and can create and store memories, in a promising step towards health monitoring and other technologies.

Multifunctional devices normally require several materials in layers, which involves the time-consuming challenge of stacking nanomaterials with high precision. This innovation features a single nanomaterial incorporated into a stretchable casing fitted to a person’s finger. The nanomaterial enables the device to produce power simply through the user bending their finger. The super-thin material also allows the device to perform memory tasks.

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Oct 28, 2023

Nanotechnology breakthrough: DNA turbine changes direction with salt

Posted by in categories: biotech/medical, nanotechnology

A team of researchers from TU Delft, University of Illinois, and MPI Göttingen has developed a nanoscale turbine made of DNA that can rotate in both directions depending on the salt concentration in the solution. This remarkable feat of nanotechnology could pave the way for new applications in drug delivery, biomimetics, and energy harvesting.

Natural turbines using DNA origami

A turbine is a device that converts the kinetic energy of a fluid into mechanical work. These are ubiquitous in our modern world, from wind farms to jet engines. They are also essential for life, as some biological molecules act as turbines to power cellular functions, such as the ATP synthase that produces energy for cells and the bacterial flagella that propel bacteria.

Continue reading “Nanotechnology breakthrough: DNA turbine changes direction with salt” »

Oct 27, 2023

Strong Light–Matter Coupling in the Simplest Geometry

Posted by in category: nanotechnology

A single-layer transition-metal dichalcogenide on top of a silver film displays strong light–matter coupling without the need for nanostructures or microcavities.

Oct 27, 2023

Scientists demonstrate electric control of atomic spin transitions

Posted by in categories: computing, nanotechnology, particle physics, quantum physics

A new study published in Nature Communications delves into the manipulation of atomic-scale spin transitions using an external voltage, shedding light on the practical implementation of spin control at the nanoscale for quantum computing applications.

Spin transitions at the atomic scale involve changes in the orientation of an atom’s intrinsic angular momentum or spin. In the atomic context, spin transitions are typically associated with electron behavior.

In this study, the researchers focused on using electric fields to control the spin transitions. The foundation of their research was serendipitous and driven by curiosity.

Oct 27, 2023

DNA Origami nanoturbine sets new horizon for nanomotors

Posted by in categories: biotech/medical, nanotechnology

A collaborative team of researchers led by prof. Cees Dekker at TU Delft, in partnership with international colleagues, introduces a pioneering breakthrough in the world of nanomotors – the DNA origami nanoturbine. This nanoscale device could represent a paradigm shift, harnessing power from ion gradients or electrical potential across a solid-state nanopore to drive the turbine into mechanical rotations.

  • A 25-nanometer DNA nanoturbine, driven by water flow, spins up to 20 revolutions per second.
  • Ion-sensitive rotation offers unique applications like targeted drug delivery.
  • Oct 24, 2023

    Nature’s Nanotechnology: The Wonders of Ancient Roman Glass

    Posted by in category: nanotechnology

    Approximately 2,000 years ago in ancient Rome, glass containers filled with wine, water, or possibly exotic perfumes, fell off a marketplace table, breaking into countless pieces on the ground. Over the ensuing centuries, these shards became buried under layers of dirt and debris and exposed to a continuous cycle of changes in temperature, moisture, and surrounding minerals.

    Now these tiny pieces of glass are being uncovered from construction sites and archaeological digs and reveal themselves to be something extraordinary. On their surface is a mosaic of iridescent colors of blue, green, and orange, with some displaying shimmering gold-colored mirrors.

    These beautiful glass artifacts are often set in jewelry as pendants or earrings, while larger, more complete objects are displayed in museums.

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