Search results for silicon dioxide

Bio & Medicine Feb 21, 2024

Spinning, magnetic micro-robots help researchers probe immune cell recognition

Researchers at the Pritzker School of Molecular Engineering and the Department of Chemistry at the University of Chicago have engineered tiny, spinning micro-robots that bind to immune cells to probe their function. The robot, ...

Condensed Matter Feb 8, 2024

New techniques for making qubits out of erbium

Qubits are the building block for quantum technology, and finding or building qubits that are stable and easily manipulated is one of the central goals of quantum technology research. Scientists have found that an atom of ...

Analytical Chemistry Jan 31, 2024

A new nose-like sensor sniffs out toxic ammonia gas

Engineers in Australia have developed a small ammonia gas sensor that could enable safer hydrogen storage and specialized medical diagnostic devices.

Astrobiology Jan 23, 2024

Life on Earth uses water as a solvent. What are some other options for life as we don't know it?

There is a vast menagerie of potentially habitable worlds in the cosmos, which means the universe could be home to a diversity of life beyond what we can imagine. Creatures built on silicon rather than carbon, or organisms ...

Nanomaterials Jan 22, 2024

Innovative membrane platform enables analysis 'down to a handful of gas atoms'

Northwestern University researchers have developed a novel method to host gas molecules as they are being analyzed in real time, using honeycomb structures found in nature as inspiration for an ultra-thin ceramic membrane ...

Plants & Animals Jan 8, 2024

'Green' energy, plant food from Florida's stinky seaweed? Ideas will be put to test

Seaweed poses all sorts of problems when it piles up on South Florida beaches. It stinks, spoils the view and makes swimming icky. It's also pricey to haul off to the landfill, which currently is the only viable disposal ...

Astronomy Jan 8, 2024

Astronomers observe three iron rings in a planet-forming disk

The origin of Earth and the solar system inspires scientists and the public alike. By studying the present state of our home planet and other objects in the solar system, researchers have developed a detailed picture of the ...

Polymers Dec 18, 2023

A novel sandwich-structured composite from biopolymers for building envelope applications

A new sandwich-structured composite has been developed from the surface layers of polyhydroxyalkanoate (PHA) and the interlayer of polylactic acid and cellulose microfibers. The biodegradable cellulose microfibers can be ...

Optics & Photonics Dec 13, 2023

Glassy shell of microscopic algae inspires tiny ultrasound detectors for medical imaging

A multidisciplinary team of researchers from Skoltech has discovered the resonance frequencies of diatom frustules. These intricately structured silicon dioxide shells of single-celled microalgae provide a promising model ...

Bio & Medicine Dec 12, 2023

Carbon nanotubes have progressed toward energy and health applications, but misconceptions remain

The increasing use of carbon nanotubes (CNTs)—and a proposal in the European Union to ban the entire class of materials—highlights the need for an updated and standardized approach to assess human and environmental impacts ...

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