Matter and Energy Archives – Page 3 of 7

A device described as the world’s smallest ultrasound detector has been created by Vasilis Ntziachristos and colleagues at the Technical University of Munich and Helmholtz Zentrum München. The extremely sensitive device can image structures smaller than individual living cells and is made using inexpensive and readily available silicon-on-insulator technology. With further optimization, the team says their detector could be mass-produced for use in a broad range of imaging applications.

Matter and Energy News Physical sciences

Quantum treatment sheds fresh light on triboelectricity

7th October 2020 Ominy science editory team 0 Comments

Alicki and Jenkins formulated their alternative description by incorporating the concept of pumping into a new, quantum model of a system undergoing triboelectric processes.

Environmental sciences Matter and Energy News Physical sciences

Electrocaloric devices show potential for greener air conditioning

3rd October 2020 Ominy science editory team 0 Comments

Ever-growing in their use, air conditioning systems use refrigerants that are powerful greenhouse gases. But independent teams in Europe and the US reckon they may have found a more environmentally friendly way to keep cool by using electricity to soak up heat by controlling the entropy of ceramic “electrocaloric” materials.

Diseases Matter and Energy

Everyday dyes paint cells for early cancer detection

30th September 2020 Ominy science editory team 0 Comments

Sometimes, the answers to difficult questions are within plain sight. That is what researchers at the University of Southern California realised as they looked for new ways to find and see cancer cells inside the human body and discovered that the dyes they could use are all around us every day.

Matter and Energy

Ascorbic acid-mediated reactions in organic synthesis

27th September 2020 Ominy science editory team 0 Comments

One of the important objectives of green chemistry is the use of eco-friendly solvents and catalysts to perform chemical reactions. Catalysts such as organocatalysts, enzymes, and ionic liquids have shown very assuring results in synthesis by reducing the number of hazardous effects of chemical reactions.

Matter and Energy Technology

Ultrasound signals are converted directly to visible images by new device

26th September 2020 Ominy science editory team 0 Comments

The first ultrasound imaging device that converts acoustic signals directly into light has been created by Hyeonggeun Yu and colleagues at North Carolina State University in the US. The device was fabricated by depositing an organic LED onto a piezoelectric crystal and it can produce real-time images without the need for signal processing.

Matter and Energy Physical sciences

Attosecond pulses track electron motion in liquid water

26th September 2020 Ominy science editory team 0 Comments

Researchers at ETH Zurich in Switzerland have tracked the ultrafast movements of electrons in liquid water for the first time – an important step towards understanding the fine details of how chemical and biochemical reactions begin in liquid environments.

Matter and Energy Physical sciences Space and time

Machine-learning study of metallic hydrogen provides clues about Jupiter’s interior

23rd September 2020 Ominy science editory team 0 Comments

Deep within the interiors of gas-giant planets like Jupiter, materials can be subjected to millions of atmospheres of pressure.

Matter and Energy News Physical sciences Technology

NPL showcases developments in cancer imaging technologies

23rd September 2020 Ominy science editory team 0 Comments

At a recent innovation webinar hosted by the UK’s National Physical Laboratory (NPL), speakers shared details of some of the breakthrough technologies being developed and commercialized by UK companies and laboratories.

Matter and Energy Physical sciences

Floating oil droplet contains hundreds of degenerate optical modes

20th September 202020th September 2020 Ominy science editory team 0 Comments

Microscopic oil droplets held aloft with optical tweezers can contain more than 200 resonant optical modes of similar energies, creating “hyperdegeneracy” for the first time.