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Tokyo Metropolitan University


Scientists fine-tune “tweezers of sound” for contactless manipulation of objects

Researchers have enhanced technology to lift small particles using sound waves, achieving stable lifting of particles from surfaces. By fine-tuning control using an adaptive algorithm, they have improved the stability of their 'acoustic tweezers' technology, which could be deployed in space and other environments with minimal contact.

SourceTokyo Metropolitan University·JournalJapanese Journal of Applied Physics·DateAug 20, 2022

What do jelly and sand have in common?

Researchers from Tokyo Metropolitan University found that falling beds of sand and melting gelatin exhibit similar destabilization behavior, characterized by fingering instabilities and fluidized interface regions. This study provides insights into the macroscopic physical behavior of granular materials and gels under gravity.

SourceTokyo Metropolitan University·JournalScientific Reports·DateApr 30, 2022

Breaking down how “single-atom” catalysts help remove organic pollutants

Researchers at Tokyo Metropolitan University developed a simple synthesis method for iron-based single-atom catalysts that activate peroxymonosulfate to break down difficult-to-degrade pollutants. The team discovered two distinct chemical pathways involving 'high-spin' state iron sites, which interact with peroxymonosulfate to create r...

SourceTokyo Metropolitan University·JournalEnvironmental Science & Technology·DateMar 5, 2022

How can a protein help us remember?

Researchers have discovered the Apterous protein's crucial role in retaining memories through its interaction with the Chi cofactor and regulation of neurotransmitters. In fruit flies, Ap plays a double role in long-term memory consolidation, highlighting potential new treatment approaches for memory-related disorders.

SourceTokyo Metropolitan University·JournalPLOS Biology·DateDec 11, 2021

Three-channel Kondo effect discovered in cubic holmium compound

Researchers have discovered a three-channel Kondo effect in a cubic holmium compound using numerical methods, predicting an exotic quantum ground state and potential applications. The study found a residual entropy value at ultra-low temperatures, matching the predicted value by the three-channel Kondo effect.

SourceTokyo Metropolitan University·JournalJournal of the Physical Society of Japan·TypeComputational simulation/modeling·DateOct 30, 2021

New long-term satellite analysis shows "plum" rainy season wetter now than ever before

Researchers from Tokyo Metropolitan University analyzed long-term satellite data to find a significant increase in rainfall over the past decade during the annual Meiyu-Baiu rainy season. The increased rainfall is driven by tropical moisture transport and upper tropospheric troughs, which are strongly correlated with enhanced rainfall.

SourceTokyo Metropolitan University·JournalScientific Reports·DateJul 17, 2021

Stress-free path to stress-free metallic films paves the way for next-gen circuitry

Researchers from Tokyo Metropolitan University have developed a method to create thin films of tungsten with minimal stresses using high power impulse magnetron scattering. This breakthrough technology enables efficient deposition of metallic films without heat treatment, opening up new possibilities for the electronics industry.

SourceTokyo Metropolitan University·JournalJournal of Applied Physics·DateJul 3, 2021

Toxicity of protein involved in Alzheimer's triggered by a chemical 'switch'

Researchers at Tokyo Metropolitan University have discovered that disulfide bonds on certain amino acids stabilize tau protein, leading to its accumulation and triggering neurodegenerative diseases like Alzheimer's. The study suggests that targeting these chemical groups may lead to novel treatments to reduce or prevent tau accumulation.

SourceTokyo Metropolitan University·JournalHuman Molecular Genetics·DateJun 26, 2021

Shuffling bubbles reveal how liquid foams evolve

A team at Tokyo Metropolitan University studied liquid foams and found that bubble movement was qualitatively different depending on the range of bubble sizes present. They discovered a 'relaxation' phenomenon where bubbles rearranged themselves to reach a new stable state, leading to unique correlated motion observed in hexagonal foams.

SourceTokyo Metropolitan University·JournalScientific Reports·DateFeb 6, 2021