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Innovations through hair-thin optical fibres

Study shows what miniaturised optical filters make possible

22-Jan-2021

Scientists at the University of Bonn have built hair-thin optical fibre filters in a very simple way. They are not only extremely compact and stable, but also colour-tunable. This means they can be used in quantum technology and as sensors for temperature or for detecting atmospheric gases. The ...

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How does your computer smell?

Researchers create a highly sensitive biohybrid olfactory sensor

15-Jan-2021

A keen sense of smell is a powerful ability shared by many organisms. However, it has proven difficult to replicate by artificial means. Researchers combined biological and engineered elements to create what is known as a biohybrid component. Their volatile organic compound sensor can effectively ...

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Researchers report quantum-limit-approaching chemical sensing chip

Study shows improvements to chemical sensing chip that aims to quickly and accurately identify drugs and other trace chemicals

13-Jan-2021

University at Buffalo researchers are reporting an advancement of a chemical sensing chip that could lead to handheld devices that detect trace chemicals -- everything from illicit drugs to pollution -- as quickly as a breathalyzer identifies alcohol. The chip, which also may have uses in food ...

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Hunting out hidden hydrogen: novel holey nanosheets for detecting hydrogen gas leaks

Scientists develop hydrogen sensors with holey zinc oxide "nanosheets" to prevent accidents from hydrogen gas leaks

15-Dec-2020

In recent years, hydrogen (H2) has emerged as the best option for clean energy in our pursuit of an alternative fuel for mitigating environmental problems such as global warming. Hailed as "batteries of the future," H2 fuel cells are touted as the fuel for the future generation. While this is all ...

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New butterfly-inspired hydrogen sensor is powered by light

Light-activated sensor delivers precision results at room temperature: For medical applications and hydrogen economy

07-Dec-2020

Inspired by the surface of butterfly wings, researchers have developed a light-activated hydrogen sensor that produces ultra-precise results at room temperature. The technology can detect hydrogen leaks well before they pose safety risks and can measure tiny amounts of the gas on people's breath, ...

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Controlling fully integrated nanodiamonds

Physicists integrate diamond-based quantum systems into nanophotonic circuits

25-Nov-2020

Using modern nanotechnology, it is possible nowadays to produce structures which have a feature sizes of just a few nanometres. This world of the most minute particles – also known as quantum systems – makes possible a wide range of technological applications, in fields which include magnetic ...

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Making gas leaks in the chemical industry visible from kilometres away

Grandperspective secures seed financing

23-Oct-2020

Over 30% of major leaks of toxic of flammable industrial gases remain undetected by gas sensors. Grandperspective develops with the scanfeldTM world’s first early warning solution monitoring entire chemical parks for gas leaks. The High-Tech Gründerfond (HTGF) finances this innovation in ...

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Single atom-thin platinum makes a great chemical sensor

Atomically thin platinum could be useful for ultra-sensitive and fast electrical detection of chemicals

16-Sep-2020

Researchers at Chalmers University of Technology, Sweden, together with colleagues from other universities, have discovered the possibility to prepare one-atom thin platinum for use as a chemical sensor. The results were recently published in the scientific journal Advanced Material ...

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Structural colors from cellulose-based polymers

Self-assembly of responsive photonic biobased materials in liquid marbles

01-Sep-2020

A surface displays structural colors when light is reflected by tiny, regular structural elements in a transparent material. Researchers have now developed a method to make structural colors from cellulose-based polymers by using coated droplets that exist in a surrounding fluid--so-called liquid ...

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An improved wearable, stretchable gas sensor using nanocomposites

Ultrasensitive nitrogen dioxide gas sensor may find applications in real-time environmental monitoring or the healthcare industry

01-Sep-2020

A stretchable, wearable gas sensor for environmental sensing has been developed and tested by researchers at Penn State, Northeastern University and five universities in China. The sensor combines a newly developed laser-induced graphene foam material with a unique form of molybdenum disulfide ...

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