Apropos K

Overview: Apropos K

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Soil bugs munch on plastics

26/07/2018

Thin mulch films made of polyethylene are used in agriculture in numerous countries, where they cause extensive soil contamination. Researchers at ETH Zurich and Eawag have now identified an alternative: films made of the polymer PBAT biodegrade in soils.
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Swim­ming with­out an en­gine and with muscels made of plastics

20/06/2018

Us­ing noth­ing but 3D print­ing, sci­en­tists have de­vel­oped a pad­dling sub­ma­rine that re­quires no en­gine, pro­pel­lant or power sup­ply.
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Producing sensors with an inkjet printer

26/06/2018

Microelectrodes can be used for direct measurement of electrical signals in the brain or heart. These applications require soft materials, however. With existing methods, attaching electrodes to such materials poses significant challenges. A team at the Technical University of Munich (TUM) has now succeeded in printing electrodes directly onto several soft substrates.
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So that Ronaldo & Co. can do their magic

28/05/2018

The official ball for the 2018 FIFA World Cup in Russia has received Empa's "stamp of approval" after numerous rigorous tests. Some goalkeepers had been critical of its flight characteristics, but the reason for this may lie somewhere else – the rather unconventional appearance of the new ball.
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Soils in Swiss nature reserves contain significant quantities of microplastics

27/04/2018

It is one of the first research projects into the existence of microplastics in the soil: Scientists at the University of Bern investigated floodplain soils in Swiss nature reserves for microplastics – and made a find. They estimate, that there are around 53 tonnes of microplastics lying in the top five centimetres of the floodplain. Even many of the soils in remote, protected mountainous ...
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Improved stability of plastic light-emitting diodes

18/04/2018

Polymer light-emitting diodes (PLEDs) are attractive for use in large–area displays and lighting panels, but their limited stability impedes commercialization. Scientists of the Max Planck Institut for Polymer Research (MPIP) in Mainz have discovered the reasons for instability.
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Polymers that mimic chameleon skin

10/04/2018

Biological tissues have complex mechanical properties – soft-yet-strong, tough-yet-flexible – that are difficult to reproduce using synthetic materials. An international team has managed to produce a biocompatible synthetic material that replicates tissue mechanics and alters color when it changes shape, like chameleon skin. They promise new materials for biomedical devices.
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Plastic in organic waste: a challenge for the ecological recycling economy

09/04/2018

Private households that put plastic materials in their organic waste bins are contributing to environmental pollution. The reason is that communal facilities often use these wastes to produce biogas and process the final residue into organic fertilizer. Tiny plastic particles frequently remain in these fertilizers, thus making their way into soil and water. This was suggested by a study at ...
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110 years ago: windscreen wiper patent for Prince Henry of Prussia

23/03/2018

If it did not exist already, it would need to be invented – the windscreen wiper. When cars still had to manage without windscreen wipers, frustrated drivers all over the world racked their brains trying to come up with a way to make it easier to see the road ahead in rainy weather and when the windscreen was dirty. So plenty of different people can claim to have invented the windscreen wiper. ...
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“Holding your world together”: a brief history of the rubber band

17/03/2018

173 years ago, on 17. March 1845, the London industrialist Stephen Perry was granted the patent for the production of elastic bands from vulcanised natural rubber. Since then, he has been considered the inventor of the rubber band, although he benefitted from the work done previously by one of his compatriots. The English-speaking world still continues to dominate the headlines where rubber ...
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