First new sound wave class in half a century to revolutionise stem cell therapy

A new class of sound wave has been developed for the first time in 50 years that looks set to revolutionise the use of stem cells in medical treatments.

Created by acoustics experts from RMIT University in Melbourne, Australia, the sound waves – known as “surface reflected bulk waves” – are gentle enough to manipulate stem cells without causing damage, something that has not previously been possible with sound waves.

The researchers have already used the technology to significantly improve the efficiency of an advanced nebuliser device developed at RMIT, which delivers medicine directly to the lungs.

“We have used the new sound waves to slash the time required for inhaling vaccines through the nebuliser device, from 30 minutes to as little as 30 seconds,” said study co-author Dr Amgad Rezk, from the Micro/Nano Research Laboratory at RMIT.

“But our work also opens up the possibility of using stem cells more efficiently for treating lung disease, enabling us to nebulise stem cells straight into a specific site within the lung to repair damaged tissue. This is a real game changer for stem cell treatment in the lungs.”

Amgad-Rezk

Dr Amgad Rezk, who co-authored the study with PhD researcher James Tan.

Surface reflected bulk waves are known as such due to their combination of bulk sound waves and surface sound waves.

Bulk sound waves cause an entire material to vibrate as one, an effect that the researchers liken to holding a carpet at one end and shaking it.

By contrast, surface sound waves only cause the surface of a material to vibrate, with the researchers comparing the effect to waves in an ocean.

By combining the two, the researchers have created a sound wave class that is far more powerful than its component wave types.

“The combination of surface and bulk wave means they work in harmony and produce a much more powerful wave,” said Rezk.

“As a result, instead of administering or nebulising medicine at around 0.2ml per minute, we did up to 5ml per minute. That’s a huge difference.”

Professor Leslie Yeo, also of RMIT, demonstrates the Respite nebuliser, which this research has improved. Images courtesy of RMIT.

Professor Leslie Yeo, also of RMIT, demonstrates the Respite nebuliser, which this research has improved. Inline images courtesy of RMIT.

The researchers have created a device to utilise surface reflected bulk waves in medical devices with the rather epic name HYDRA.

This passes electricity through a piezoelectric chip, converting it into mechanical vibration, or sound waves, that can break liquid into a spray so it can be inhaled.

“It’s basically ‘yelling’ at the liquid so it vibrates, breaking it down into vapour,” explained Rezk.

HYDRA has been used to improve RMIT’s advanced nebula, known as Respite, which can be used to deliver a wide range of drugs into the body without the need for pills or injections.

For sufferers of asthma and cystic fibrosis, the device can deliver highly precise drug doses, but it can also be used to provide diabetes patients with insulin, and give infants vaccines without an injection.

The details of the research have been published today in the journal Advanced Materials.

China planning to end sales of fossil-fuel-powered vehicles

Xin Guobin, China's vice minister of industry and information technology, has said the government is working with regulators to put in place a timetable to end the production and sale of cars powered by fossil fuels. It's hoped the move will accelerate the expansion of the electric car market.

Source: Bloomberg

Limited Tesla Autopilot was "partly to blame" for crash

The US National Transportation Safety Board (NTSB) has found that Tesla's Autopilot system was partly to blame for a fatal accident in which a Model S collided with a lorry. The safety board concluded that Tesla allowed the driver to use the system outside of the environment for which it was designed,

Source: BBC

Chelsea Manning warns about the risks of AI

During a conversation at Noisebridge hackerspace, Chelsea Manning commented on some of the inherent risks of AI. "We’re now using huge datasets with all kinds of personal data, that we don’t even know what information we’re putting out there and what it’s getting collected for," Manning said.

Source: Ars Technica

US government bans Kaspersky software from its agencies

The Department of Homeland security has ordered government agencies to stop using software products made by Kaspersky Lab because of possible ties between Kaspersky officials and Russian intelligence. The process of discontinuing Kaspersky products is expected to begin within 90 days.

Source: Ars Technica

Hyperloop One selects ten possible routes for the first hyperloop

Hyperloop One has announced that it has selected ten proposed routes for the first hyperloop. The company also announced that it would “commit meaningful business and engineering resources and work closely with each of the winning teams/routes to determine their commercial viability”.

Source: Inverse

Artificial 'skin' gives robotic hand a sense of touch

A team of researchers from the University of Houston has reported a breakthrough in stretchable electronics that can serve as an artificial skin, allowing a robotic hand to sense the difference between hot and cold, while also offering advantages for a wide range of biomedical devices.

Source: Science Daily

The plan to make every surface inside the car of the future smart

Yanfeng Automotive Interiors (YFAI) has revealed a vision for the future of cars where every surface inside the vehicle can become a smart surface.

Launched at the International Auto Show, YFAI’s activeSkin concept will turn the largely decorative surfaces inside cars, including the door trim, floor console and instrument panel, into smart interior surfaces, which YFAI says will be “fully interactive” and could be ready by 2022.

“The future generation of surfaces will be smarter than ever. Just by passing your hand over a upholstered surface of the car will appear an interactive surface or dynamic decorative ambient light. Surfaces interact with us, “says Han Hendriks , YFAI’s chief technology officer.

“This technology is impressive.”

Images courtesy of YFAI

YFAI says its customisable 3D glass surfaces could benefit drivers by replacing some of the current operating elements in traditional cars.

However, If no information is called up by the driver, integrated screens and operating surfaces would remain invisible as purely decorative glass surfaces, so drivers would not be distracted by unnecessary information popping up.

“We offer on-demand functionality, so it will only be visible when you need it. In this way we will be able to customise features on interior surfaces,” said Hendriks. “With activeSkin we can achieve a 3D effect that gives a feeling of amazing depth.”

This isn’t the first time YFAI has tried to predict what cars of the future will be like.

The company’s XiM17 concept car was designed with autonomous driving in mind and helped answer the question, “What will people do in their vehicle, if they no longer have to drive?”

YFAI’s XiM17 allows passengers to switch between a number of different modes to allow passengers a number of different ways of engaging.

For example, in family mode all four seats in the car are positioned facing each other, whereas in meeting mode the rear seats are folded away. so that the driver and passenger seats face each other. and a floor console rises to form a desk.