Scientists are developing magnetised nanorobots that can be injected into the human body and perform complex tasks such as treating brain bleeds - Tech & Science Daily podcast hears about the pioneering study from Dr Qi Zhou, of the University of Edinburgh’s School of Engineering, who co-led the study. Lab-grown cocoa & future of chocolate. Doctor will scan you now...clinic’s high-tech check-ups.

Also in this episode:

• Earth’s yearly 220 million tons of dumped plastic
• Rare tree bugs that can ‘bite’ humans found in London
• Prison spends £22m to fight drone drug deliveries
• Digital fingerprints for France-bound Brits

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