Researchers are rejoicing over their newly-developed contraption that can generate clean electricity “from thin air”.
Scientists at the University of Massachusetts Amherst have designed a device that uses a natural protein to create electricity from moisture in the air: a new technology they say could have significant implications for the future of renewable energy, climate change and in the future of medicine.
As reported this week in Nature, the laboratories of electrical engineer Jun Yao and microbiologist Derek Lovley at UMass Amherst have created a device they call an “Air-gen” or air-powered generator, with electrically conductive protein nanowires produced by the microbe Geobacter.
The Air-gen connects electrodes to the protein nanowires in such a way that electrical current is generated from the water vapor naturally present in the atmosphere.
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“We are literally making electricity out of thin air,” says Yao. “The Air-gen generates clean energy 24/7.”
Lovely, who has advanced sustainable biology-based electronic materials over three decades, adds, “It’s the most amazing and exciting application of protein nanowires yet.”
The new technology developed in Yao’s lab is non-polluting, renewable and low-cost. It can generate power even in areas with extremely low humidity such as the Sahara Desert. It has significant advantages over other forms of renewable energy including solar and wind, Lovley says, because unlike these other renewable energy sources, the Air-gen does not require sunlight or wind, and “it even works indoors.”
The Air-gen device requires only a thin film of protein nanowires less than 10 microns thick, the researchers explain. The bottom of the film rests on an electrode, while a smaller electrode that covers only part of the nanowire film sits on top. The film adsorbs water vapor from the atmosphere.
A combination of the electrical conductivity and surface chemistry of the protein nanowires, coupled with the fine pores between the nanowires within the film, then establishes the conditions that generate an electrical current between the two electrodes.
The researchers say that the current generation of Air-gen devices are able to power small electronics, and they expect to bring the invention to commercial scale soon.
Next, the scientists plan to continue their research by developing a small Air-gen “patch” that can power electronic wearables such as health and fitness monitors and smart watches, which would eliminate the requirement for traditional batteries.
They also hope to develop Air-gens to apply to cell phones to eliminate periodic charging.
Yao says: “The ultimate goal is to make large-scale systems. For example, the technology might be incorporated into wall paint that could help power your home. Or, we may develop stand-alone air-powered generators that supply electricity off the grid.
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“Once we get to an industrial scale for wire production, I fully expect that we can make large systems that will make a major contribution to sustainable energy production.”
In addition to the Air-gen, Yao’s laboratory has developed several other applications with the protein nanowires. “This is just the beginning of new era of protein-based electronic devices,” he said.
Reprinted from University of Massachusetts Amherst
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Leaving her elderly father on a basement floor for two days in a soiled adult diaper won’t mean jail for a Calgary woman.
Justice Indra Maharaj accepted a joint Crown and defence submission on Wednesday for a two-year-less-a-day conditional sentence order for Tara Picard to be followed by 12 months of probation.
Prosecutor Donna Spaner and defence counsel Shaun Leochko proposed a community-based term which will include eight months of 24-hour house arrest followed by a nightly curfew for the second eight months.
Maharaj also agreed with the lawyers to order Picard to commit 300 hours of community service over the length of the three-year sentence.
The Calgary Court of Justice noted that amount of community-service hours was “a lot” to commit to.
But Maharaj said it showed Picard, 52, was truly remorseful for her conduct towards her father, whom Postmedia is not identifying because of the embarrassing nature of the facts of the case.
“What that shows me is Ms. Picard does sincerely recognize what has happened here,” the judge said of her willingness to complete community service.
“What I interpret from that is Ms. Picard’s willingness to give back to the community.”
Picard pleaded guilty in January to charges of assault and failing to provide the necessaries of life to her 77-year-old father.
Court heard caregivers found the elderly Calgary man on the basement floor of his daughter’s southeast home wearing a soiled adult diaper.
At the time, Picard was responsible for her father’s day-to-day care after he was moved to her residence, Spaner, reading from a statement of agreed facts, told court at the time.
“He had a number of medical ailments, including non-insulin dependent diabetes, coronary artery disease, some early onset dementia-like symptoms and chronic alcoholism,” Spaner said.
“(He) had been living independently in a Calgary apartment building. Family members became concerned that he was not caring for himself safely.”
With the help of Alberta Health Services he was moved to a home where Picard resided.
A registered nurse assigned to his care attended the 38 Street S.E. home on Nov. 15, 2021, to drop off food bank supplies for him and was told he was sleeping downstairs.
When the nurse called about an hour and a half later and spoke to the man on the phone he said he was lying on the floor, had fallen and was unable to get up.
When she returned to the home with a co-worker she found the victim lying on his back on the floor.
“(He) said that he had been lying on the floor for two days,” Spaner said.
Leochko said Picard was overwhelmed by the situation she was thrust into.
“It really was more than she could handle,” he said.
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@juanhall: I gotta say, this was the most interesting bike in this post….love that Intense is experimenting with gearboxes…I can see it have a huge effect on DH bikes….thank god there’s still people pushing things. Now, they need to make an Enduro bike with the Pinion MGU!
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The City of Pointe-Claire would like to inform you that the Bob-Birnie arena will be closed for its annual maintenance as of Monday, April 29. The Annex rink will reopen to the public on Monday, May 13, and the arena’s Main rink will be accessible as of Monday, June 3.
Public skating will resume on May 13, and the summer public activities programming will begin on June 3 when both rinks have reopened to the public.
In addition to the annual maintenance of the facility, two renovation projects are also scheduled to start at the same time:
Installation of new sound systems
The City will be replacing its current sound systems in both the Main rink and Annex rink, to offer arena visitors a better overall experience, whether watching from the stands or participating in on-ice activities. This project is expected to be conducted throughout the month of May.
Renovation of locker rooms in the Main Rink
The City will also be renovating the five locker rooms located in the Main rink, to bring up to date the amenities currently available to participants. These renovations are expected to begin in early May and will be completed by mid-August.
For all information about the Bob-Birnie arena, visit the arena’s page on our website.
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