tldrdailynews.com logo
Tag

Nanoparticles

All articles tagged with #nanoparticles

Nanoparticles Restore Brain Cleanup, Reversing Alzheimer’s Signs in Mice
science9 days ago

Nanoparticles Restore Brain Cleanup, Reversing Alzheimer’s Signs in Mice

Researchers used supramolecular nanoparticles that act as drugs to repair the brain's blood-brain barrier and restart its waste-clearance system. In mice with high amyloid-β, three injections reduced brain Aβ by 50–60% within an hour, with months-long vascular and cognitive improvements; the approach leverages the LRP1 transport system to reset clearance. While promising, the work is in animal studies and human trials remain years away.

via ScienceDaily|
#alzheimers-disease#amyloid-beta#blood-brain-barrier
Metal Nanoparticles Demonstrate Quantum Superposition at Near-Macroscopic Scale
science1 month ago

Metal Nanoparticles Demonstrate Quantum Superposition at Near-Macroscopic Scale

Vienna and Duisburg-Essen researchers show that sodium nanoparticle clusters (~8 nm, >170,000 amu) can exhibit quantum interference, existing in a superposition as they pass through three UV-laser diffraction gratings. Achieving a macroscopicity value of μ = 15.5, the experiment extends quantum behavior toward larger scales and opens the door to studying bigger particles and precision sensing.

via SciTechDaily|
#interferometry#macroscopicity#nanoparticles
Macroscopic quantum state realized with 7,000-atom sodium nanoparticles
physics-and-mathematics3 months ago

Macroscopic quantum state realized with 7,000-atom sodium nanoparticles

Physicists demonstrated a macroscopic quantum superposition by sending a beam of 7,000-atom sodium nanoparticles through a narrow slit, which produced an interference pattern and set a new record for the size of objects observed in quantum states; the result points toward future experiments with larger, even biological, molecules in quantum superpositions.

via Live Science|
#interference#macroscopic-quantum-state#nanoparticles
Quantum interference observed in sodium nanoclusters at 0.17 MDa
science4 months ago

Quantum interference observed in sodium nanoclusters at 0.17 MDa

Researchers demonstrate quantum interference of sodium clusters containing thousands of atoms (mass >170 kDa) in a near-field Talbot–Lau interferometer using three UV gratings, achieving fringe visibilities that align with quantum predictions and yielding a macroscopicity value of μ = 15.5—the highest reported to date. This shows the quantum superposition principle persists at this unprecedented mass/size and provides a platform to test macrorealist modifications of quantum mechanics, with future work aiming to reach even larger masses (MDa range) as experimental techniques improve.

via Nature|
#interferometry#macroscopicity#matter-wave
Physicists Achieve Controlled Quantum Wavepacket Expansion in Levitated Nanoparticle
science8 months ago

Physicists Achieve Controlled Quantum Wavepacket Expansion in Levitated Nanoparticle

Physicists at ETH Zurich and the Barcelona Institute of Photonic Sciences have developed a method to control and expand the quantum wavepacket of levitated nanoparticles, potentially paving the way for matter-wave interference experiments with larger objects by using a technique called quantum squeezing to increase coherence length.

via Phys.org|
#delocalization#nanoparticles#optomechanics
Scientists Develop Rechargeable, Multicolored Glowing Succulents
science8 months ago

Scientists Develop Rechargeable, Multicolored Glowing Succulents

Scientists in China have developed the first multicolored, glow-in-the-dark succulent plants by injecting them with nanoparticles, allowing them to emit light for up to two hours after sunlight exposure, with potential future applications in decorative lighting and public spaces, though practical use remains limited due to safety and brightness concerns.

via CNN|
#glow-in-the-dark-plants#luminescent-plants#multicolored-plants