麻豆传媒

Chemistry

Old milk can be used to extract gold and other metals from e-waste

To extract valuable metals from discarded computer motherboards, researchers have developed a gold-absorbing material made from old milk

A smart hat and top made of conductive fibres

Technology

Smart hat senses when traffic lights change and tells you via an app

Environment

Toys produce far more electronic waste than vapes

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

Technology

Wood transistor could let us embed electronics in trees

The smart bandage

Technology

Electronic wound dressing releases drugs to help injuries heal

The fermented, probiotic tea kombucha

Technology

Kombucha cultures can be turned into flexible electric circuit boards

A smartphone on some wood

Technology

Wood coated in nanocrystals can block electromagnetic signals

LED panel

Chemistry

Soap molecule could help make alternative LED tech commercially viable

Artwork of nodes in a network

Technology

鈥楢rtificial synapse鈥� could make neural networks work more like brains

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.

Technology

Disposable paper battery is activated by a drop of tap water

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

Technology

Sweater includes a wireless charger to keep your gadgets topped up

Physics

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

Physics

First one-way superconductor could slash energy used by computers

Technology

Stretchy light-emitting plastic could be used in wearable screens