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A wood transistor made from balsa wood soaked in a conductive polymer, along with carbon fibres, paraffin wax, silver paste and carbon paste.

Wood transistor could let us embed electronics in trees

24 April 2023

An electrochemical transistor made from balsa wood opens up the possibility of embedding sensors and other electronic devices in plants, which could help in agriculture and forest management


The smart bandage

Electronic wound dressing releases drugs to help injuries heal

24 March 2023

A stretchable sticking plaster detects whether an injury is healing well and uses stimulating electrodes and microinjections of drugs to speed up the process


The fermented, probiotic tea kombucha

Kombucha cultures can be turned into flexible electric circuit boards

22 February 2023

The congealed mat of yeast and bacteria cells that forms on top of the brewed drink kombucha could be used to make light, cheap and flexible circuit boards for wearable electronics or even partially living rudimentary computers


A smartphone on some wood

Wood coated in nanocrystals can block electromagnetic signals

14 February 2023

A thin film made from wood and coated in nanocrystals can act as a shield against electromagnetic signals that disrupt electrical devices


LED panel

Soap molecule could help make alternative LED tech commercially viable

8 August 2022

LEDs made from perovskite, a titanium and calcium crystal, are a potential alternative to silicon-based ones, but until now haven't been able to match them for stability and efficiency


Artwork of nodes in a network

‘Artificial synapse’ could make neural networks work more like brains

28 July 2022

Networks of nanoscale resistors that work in a similar way to nerve cells in the body could offer advantages over digital machine learning


Photograph of a stencil-printed two-cell paper battery with a design that spells the name of the authors' research institution (Empa). The battery is running a liquid crystal display alarm clock. Credit: Alexandre Poulin.

Disposable paper battery is activated by a drop of tap water

28 July 2022

Small and cheap batteries could enable a host of electronic devices such as parcel trackers, environmental monitors and sensors used in healthcare


shirt

Sweater includes a wireless charger to keep your gadgets topped up

13 May 2022

A sweater containing tubes filled with a liquid metal alloy can charge up wearable electronic devices


Illustration of a computer motherboard with microchips, transistors and semiconductors.

Maxwell's demon experiment could be made real without breaking physics

10 May 2022

A thought experiment called Maxwell’s demon, long hypothesised to break the laws of physics, could be made using simple electronic devices at macroscopic scales – without upsetting the laws of thermodynamics


Artist Impression of a superconducting chip

First one-way superconductor could slash energy used by computers

27 April 2022

A serendipitous experiment has demonstrated a superconductor that lets electricity preferentially travel in one direction for the first time


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