The Left Handed Mallet: A Tech Round-Up
Welcome to our regular technology round up, “The Left Handed Mallet.” Whilst the title is a tongue in cheek reference to a very old joke, the subjects of this tech round-up are all seriously innovative engineering solutions. In this instalment PIF take a look at wooden semiconductor chips, synthetic ingredients and energy-saving exoskeletons.
Researchers from the University of Wisconsin-Madison have teamed up with the US Department of Agriculture Forest Products Laboratory (FPL) to develop a semiconductor chip made almost exclusively of...wood. The new wood chip, outlined in Nature Communications, uses cellulose nanofibril (CNF) – an entirely biodegradable and flexible wooden material – to replace the supporting substrate layer of a computer chip. “The majority of material in a chip is support. We only use less than a couple of micrometers for everything else,” said project leader professor Zhenqiang “Jack” Ma.
Synthetic vanilla and rhino horn
Swiss company, Evolva, has developed a way to brew the vanilla extract, vanillin, synthetically from yeast. Their scientists employ synthetic biology (synbio) to edit yeast DNA and force it to synthesise vanillin through fermentation and therefore create a sustainable alternative to slow-growing natural vanilla. Elsewhere, tech start-up, Pembient, is also developing synthetic ingredients but in their case it's to ward off illegal wildlife trade. Their aim is to produce rhino horn so biologically similar to wild horn (at around one tenth of the black market costs) that buyers and traders might switch and illegal poaching can be curtailed.
Isabella Rudd, 8, from Dartford, was born with no fingers on her right arm but has been given a helping hand – quite literally – with the aid of a new prosthetic created by a 3D printer. Her new hand, which was built from biodegradable plastic, cost her family a mere £50 to buy but has already proven invaluable now that Isabella can pick up objects, ride a bike and generally do all the things a little girl her age likes to do.
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