Nano-sensor detects pesticides on fruit in minutes

The new nano-sensors employ a 1970s discovery

08-Jun-2022 - Researchers at Karolinska Institutet in Sweden have developed a tiny sensor for detecting pesticides on fruit in just a few minutes. The technique, described as a proof-of-concept in a paper in the journal Advanced Science, uses flame-sprayed nanoparticles made from silver to increase the signal ...

Sensing with a twist: A new kind of optical nanosensor uses torque for signal processing

18-Sep-2017 - The world of nanosensors may be physically small, but the demand is large and growing, with little sign of slowing. As electronic devices get smaller, their ability to provide precise, chip-based sensing of dynamic physical properties such as motion become challenging to develop. An international ...

Highly sensitive nanosensors to prevent catastrophes

02-Jun-2017 - With safety in the resource sector a globally critical issue, the researchers said an affordable, robust, and real-time monitoring system was imperative - and they have already made recent important discoveries furthering this work within the centre. Dr Dzung Dao, Professor Nam-Trung Nguyen, ...

Tiny graphene radios may lead to Internet of Nano-Things

03-Nov-2016 - For wireless communication, we're all stuck on the same traffic-clogged highway - it's a section of the electromagnetic spectrum known as radio waves. Advancements have made the highway more efficient, but bandwidth issues persist as wireless devices proliferate and the demand for data grows. The ...

New capabilities in single-molecule sensing

DNA origami puts a smart lid on solid-state nanopore sensors

24-Apr-2012 - The latest advance in solid-state nanopore sensors – devices that are made with standard tools of the semiconductor industry yet can offer single-molecule sensitivity for label-free protein screening – expands their bag of tricks through bionanotechnology. Researchers at the Technische ...