Round-up of top and latest news from the world of technology: - Portable ultrasound devices bring life-saving care to Kenya's remote villages - India second largest supplier of restricted technology to Russia - India to train 12,000 girls in space technology

Portable Ultrasound Devices Bring Life-Saving Care To Kenya's Remote Villages

The MIT's Ultrasound sticker can check internal organs for disease. The wearable ultrasound sticker monitors organ stiffness. The stamp sized stickers produce high resolution images of organs. Watch to know more!

MIT engineers develop sticker for health monitoring

In the near future, it might become possible to carry out medical surgeries without having to cut the skin open; all thanks to researchers at Duke University and Harvard Medical School.

In a new proof of concept published Thursday (Dec 7) in Science, they demonstrated a 3D printer that uses ultrasound to print biomaterials inside an organ.

The researchers behind the path-breaking technology are Junjie Yao, a bioengineer at Duke University; and his co-primary investigator Yu Shrike Zhang.

<h2>Biggest problem that the researchers faced</h2>

Many 3D printing technologies utilise light to solidify ink into structures, often requiring printing on surfaces.&nbsp;

This poses challenges for creating minimally invasive structures, as surgery is typically necessary for implantation.&nbsp;

“That’s really the limit of current bioprinting technology,” said Yao. So, the researchers came up with the idea to make a printer that uses ultrasound waves which travel deeper through opaque materials.

Watch:&nbsp;New evidence suggests size of the Sun could be smaller

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“So we are developing this ultrasound printer, which uses ultrasound waves to convert the sono-ink developed by Shirke’s lab into three-dimensional structures actually inside the tissue without the need to print it out, then implant it into the tissue,” Yao was quoted as saying by STAT News.

<h2>Finding solution</h2>

The printer, designed by Yao and his team, employs a focused ultrasound transducer to convert electrical energy into sound waves, enabling the creation of intricate structures layer by layer within tissues.&nbsp;

The researchers successfully printed a bone-shaped structure through pig skin and muscle, simulated bone reconstruction, treated atrial fibrillation by printing a patch on an ex vivo heart, and delivered chemotherapy through a 14-millimetre-thick pig liver.

<a href="https://www.wionews.com/science/worlds-oldest-disease-causing-species-found-its-407mn-year-old-fungus-667950">Also read:&nbsp;World’s oldest disease-causing species found: It’s 407mn-year-old fungus</a>

“I think what was pretty innovative was the use of ultrasound to do this kind of gelling of materials so deep into the [organ] with a non-invasive technology like ultrasound, which really has minimal side effects,” Adam Feinberg, a professor at Carnegie Mellon University with expertise in biomedical engineering and material science, was quoted as saying by STAT.&nbsp;

Feinberg, who did not participate in the study, described the research as a “unique” application of technology.

(With inputs from agencies)

In the near future, it might become possible to carry out medical surgeries without having to cut the skin open; all thanks to researchers at Duke University and Harvard Medical School.

In the near future, it might become possible to carry out medical surgeries without having to cut the skin open; all thanks to researchers at Duke University and Harvard Medical School. In a new proof of concept published Thursday (Dec 7) in Science, they demonstrated a 3D printer that uses ultrasound to print biomaterials inside an organ. The researchers behind the path-breaking technology are Junjie Yao, a bioengineer at Duke University; and his co-primary investigator Yu Shrike Zhang. Biggest problem that the researchers faced Many 3D printing technologies utilise light to solidify ink into structures, often requiring printing on surfaces. This poses challenges for creating minimally invasive structures, as surgery is typically necessary for implantation. “That’s really the limit of current bioprinting technology,” said Yao. So, the researchers came up with the idea to make a printer that uses ultrasound waves which travel deeper through opaque materials. Watch: New evidence suggests size of the Sun could be smaller × “So we are developing this ultrasound printer, which uses ultrasound waves to convert the sono-ink developed by Shirke’s lab into three-dimensional structures actually inside the tissue without the need to print it out, then implant it into the tissue,” Yao was quoted as saying by STAT News. Finding solution The printer, designed by Yao and his team, employs a focused ultrasound transducer to convert electrical energy into sound waves, enabling the creation of intricate structures layer by layer within tissues. The researchers successfully printed a bone-shaped structure through pig skin and muscle, simulated bone reconstruction, treated atrial fibrillation by printing a patch on an ex vivo heart, and delivered chemotherapy through a 14-millimetre-thick pig liver. Also read: World’s oldest disease-causing species found: It’s 407mn-year-old fungus “I think what was pretty innovative was the use of ultrasound to do this kind of gelling of materials so deep into the [organ] with a non-invasive technology like ultrasound, which really has minimal side effects,” Adam Feinberg, a professor at Carnegie Mellon University with expertise in biomedical engineering and material science, was quoted as saying by STAT. Feinberg, who did not participate in the study, described the research as a “unique” application of technology. (With inputs from agencies)

Surgery without being cut open? Researchers develop 3D printer that uses ultrasound

Hailed as a revolution in medical imaging, researchers have created a wearable ultrasound patch that provides a flexible way to see deep inside the body.

Ultrasound is an important medical tool that helps doctors examine organs for damage, diagnose cancer or even&nbsp;track bacteria. It works by mapping tissues and fluids by recording how sound waves bounce off them.

However, many ultrasound machines aren’t portable, and the wearable ones either struggle to spot details or can be used for only short periods.

The new patch, which is the size of a postage stamp, can work for up to 48 hours on the trot even while the user is doing something active, like exercise, researchers’ report in the July 29 edition of the journal Science.

“This is just the beginning,” Xuanhe Zhao, a mechanical engineer at MIT who led the research team, was quoted as saying.

He said that his team plans to make the patch wireless and able to interface with a user’s phone, which could then show the ultrasound signals as 3-D images.

“We are working hard on the wireless version because there are already wireless point-of-care handheld ultrasounds. We are confident that we will be able to achieve the wireless version in a few years,” he told The Guardian.

They are also confident of their device's efficacy over the prevailing portable ones. In laboratory tests, they used the patches to see people’s hearts change shape during exercise, their stomachs expand and shrink as they drank and passed drinks, and their muscles pick up microdamage when weightlifting.

The researchers say that even without a wireless version, these miniature patches could make an immediate difference in hospitals by monitoring patients’ organs while they lie in bed.

(With inputs from agencies)

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Hailed as a revolution in medical imaging, researchers have created a wearable ultrasound patch that provides a flexible way to see deep inside the body. Ultrasound is an important medical tool that helps doctors examine organs for damage, diagnose cancer or even track bacteria.

Hailed as a revolution in medical imaging, researchers have created a wearable ultrasound patch that provides a flexible way to see deep inside the body. Ultrasound is an important medical tool that helps doctors examine organs for damage, diagnose cancer or even track bacteria. It works by mapping tissues and fluids by recording how sound waves bounce off them. However, many ultrasound machines aren’t portable, and the wearable ones either struggle to spot details or can be used for only short periods. The new patch, which is the size of a postage stamp, can work for up to 48 hours on the trot even while the user is doing something active, like exercise, researchers’ report in the July 29 edition of the journal Science. “This is just the beginning,” Xuanhe Zhao, a mechanical engineer at MIT who led the research team, was quoted as saying. He said that his team plans to make the patch wireless and able to interface with a user’s phone, which could then show the ultrasound signals as 3-D images. “We are working hard on the wireless version because there are already wireless point-of-care handheld ultrasounds. We are confident that we will be able to achieve the wireless version in a few years,” he told The Guardian. They are also confident of their device's efficacy over the prevailing portable ones. In laboratory tests, they used the patches to see people’s hearts change shape during exercise, their stomachs expand and shrink as they drank and passed drinks, and their muscles pick up microdamage when weightlifting. The researchers say that even without a wireless version, these miniature patches could make an immediate difference in hospitals by monitoring patients’ organs while they lie in bed. (With inputs from agencies) WATCH WION LIVE HERE

This miniature-sized ultrasound patch can image internal organs

Kristin Aquilino, a scientist at the University of California, Davis, knows that expectations are just disappointments in disguise. Over the past decade, she has led the school’s white abalone captive-breeding program, which aims to bring the marine mollusk back from the brink of extinction.

In June, she and her colleagues drove snails kept in captivity at Davis down the California coast to Cabrillo Marine Aquarium in Los Angeles. Others were dropped off at labs and aquariums around Southern California; all told, this was the largest spawning attempt of white abalone to date. But when she tried to get them in the mood with what she calls a love potion — a mix of seawater with hydrogen peroxide — the snails languished in their tanks occasionally emitting bubbles, but no eggs or sperm. After four hours, Aquilino called it off. (Simultaneous attempts at the other sites also failed.)

“It sucks,” she said. “There’s a lot of human effort involved, but there’s no way they’ll spawn today.”

After fishermen depleted 99% of white abalone from the wild in the 1970s, the sea snails are hanging on by a slimy thread. Despite the urgency of breeding these and other endangered aquatic snails to reintroduce to the wild, propagating more of them in a lab is still a guessing game, Aquilino says.

Now, a study published Thursday in the journal Frontiers in Marine Science offers an improved tool for determining which abalone will be reproductive. The technique — using noninvasive ultrasound, a decades-old medical technology — could raise the prospects of successful captive-breeding efforts and ultimately help restore endangered abalone in the wild.

“If we can use this method, it could make a really big difference and we might be able to strategically target animals to induce to spawn,” said David Witting, a fisheries biologist at the National Oceanic Atmospheric Administration who specializes in abalone recovery and was not involved in the study. “We’ll take any more edge we can get. Getting animals to spawn is really the pinch point for the whole process of recovering them.”

For Aquilino, the method offers a glimmer of hope.

“When I first saw the ultrasound images of my kids, I saw the future of my family,” she said. “When I see the ultrasound images of these abalone, I see the future of an entire species.”

Seven species of abalone — sea snails with colorful, domed shells — have historically called the west coast of North America home. The animals help the ecosystems they live in by maintaining kelp forests, feeding marine mammals and improving the health of reefs.

But over much of the 20th century, divers and fishermen depleted several species of abalone. Aside from the white abalone, black abalone succumbed to a disease called withering syndrome, and pinto abalone in the northern Pacific suffered from overharvesting and habitat degradation. In the wild, abalone are terrible at long-distance relationships: In order to reproduce, they must be within proximity of each other because the snails send their gametes into the water column to get fertilized. By the 1990s, there were so few of the endangered species that scientists realized they needed to intervene.

Reproducing them in captivity, however, is a big challenge. There are no clear cues for when they’re ready to reproduce. Researchers have traditionally inspected the snails visually by prying them off whatever surface they’re suctioned to, then looking for the crevice between their sticky feet and shell to find a bulge, where the animal’s gonad is below the milky skin. Depending on how large the gonad is, the scientists give the animal a score: plump protrusions outrank smaller ones.

“That&nbsp;kind of&nbsp;gives you an idea of whether or not the animal may spawn,” said Josh Bouma, abalone program director of the Restoration Fund in Washington state, who heads the captive-breeding program for the endangered pinto abalone.

But visual exams can be vastly inaccurate. The gonad surrounds their stomachs, so if the snail just had a huge meal, the score can be misleading. Researchers could also take a more accurate tissue sample, but it would kill the snail. And handling abalone in any way — including popping them from their aquarium tanks — is enough to stress them out and may kill their mood.

Ultrasound, on the other hand, is noninvasive.

The idea of using ultrasound on these snails first came about in 2019. Jackson Gross, an aquaculture specialist at the University of California, Davis, had used ultrasound on fin fish, such as sturgeon, to study their reproductive habits. He stumbled across a YouTube video of a veterinarian sliding an ultrasound probe along the bottom of a land snail. If it worked for land snails, wouldn’t it work for sea snails such as abalone, too?

Sara Boles, a postdoctoral researcher working with Gross, discovered a way to perform ultrasounds on the abalone without taking them out of their tanks by holding the device up to their sticky feet. This quickly produced clear images of their swollen or flaccid gonads on a laptop appended to the ultrasound probe.

In the new study, Boles and her colleagues examined more than 200 abalone and scored the thickness of their gonads on a scale of 1 to 5 to determine which are likely to spawn. With the ultrasound images, the gonad comes into focus: The stomach appears as a dark, cone-shaped item, and the slightly lighter gonad surrounds it.

For now, these images can provide an easy way to score animals, but Gross and his colleagues want to verify if gonad thickness also correlates with reproductive success.

Already, Boles has used the ultrasound to help Aquilino in her white abalone breeding efforts. Last spring, after Aquilino had already visually scored the animals, Boles brought the ultrasound to her lab.

Of the eight white abalone that Boles rated highest after the ultrasound exam, five spawned; some snails with slightly lower ratings did, too. The method is already helping researchers revise their methods of assessing which abalone are most ready to reproduce.

“It’s another way to help ensure that we have the best of the best,” Boles said.

Kristin Aquilino, a scientist at the University of California, Davis, knows that expectations are just disappointments in disguise. Over the past decade, she has led the school’s white abalone captive-breeding program, which aims to bring the marine mollusk back from the brink of extinction.

Kristin Aquilino, a scientist at the University of California, Davis, knows that expectations are just disappointments in disguise. Over the past decade, she has led the school’s white abalone captive-breeding program, which aims to bring the marine mollusk back from the brink of extinction. In June, she and her colleagues drove snails kept in captivity at Davis down the California coast to Cabrillo Marine Aquarium in Los Angeles. Others were dropped off at labs and aquariums around Southern California; all told, this was the largest spawning attempt of white abalone to date. But when she tried to get them in the mood with what she calls a love potion — a mix of seawater with hydrogen peroxide — the snails languished in their tanks occasionally emitting bubbles, but no eggs or sperm. After four hours, Aquilino called it off. (Simultaneous attempts at the other sites also failed.) “It sucks,” she said. “There’s a lot of human effort involved, but there’s no way they’ll spawn today.” After fishermen depleted 99% of white abalone from the wild in the 1970s, the sea snails are hanging on by a slimy thread. Despite the urgency of breeding these and other endangered aquatic snails to reintroduce to the wild, propagating more of them in a lab is still a guessing game, Aquilino says. Now, a study published Thursday in the journal Frontiers in Marine Science offers an improved tool for determining which abalone will be reproductive. The technique — using noninvasive ultrasound, a decades-old medical technology — could raise the prospects of successful captive-breeding efforts and ultimately help restore endangered abalone in the wild. “If we can use this method, it could make a really big difference and we might be able to strategically target animals to induce to spawn,” said David Witting, a fisheries biologist at the National Oceanic Atmospheric Administration who specializes in abalone recovery and was not involved in the study. “We’ll take any more edge we can get. Getting animals to spawn is really the pinch point for the whole process of recovering them.” For Aquilino, the method offers a glimmer of hope. “When I first saw the ultrasound images of my kids, I saw the future of my family,” she said. “When I see the ultrasound images of these abalone, I see the future of an entire species.” Seven species of abalone — sea snails with colorful, domed shells — have historically called the west coast of North America home. The animals help the ecosystems they live in by maintaining kelp forests, feeding marine mammals and improving the health of reefs. But over much of the 20th century, divers and fishermen depleted several species of abalone. Aside from the white abalone, black abalone succumbed to a disease called withering syndrome, and pinto abalone in the northern Pacific suffered from overharvesting and habitat degradation. In the wild, abalone are terrible at long-distance relationships: In order to reproduce, they must be within proximity of each other because the snails send their gametes into the water column to get fertilized. By the 1990s, there were so few of the endangered species that scientists realized they needed to intervene. Reproducing them in captivity, however, is a big challenge. There are no clear cues for when they’re ready to reproduce. Researchers have traditionally inspected the snails visually by prying them off whatever surface they’re suctioned to, then looking for the crevice between their sticky feet and shell to find a bulge, where the animal’s gonad is below the milky skin. Depending on how large the gonad is, the scientists give the animal a score: plump protrusions outrank smaller ones. “That kind of gives you an idea of whether or not the animal may spawn,” said Josh Bouma, abalone program director of the Restoration Fund in Washington state, who heads the captive-breeding program for the endangered pinto abalone. But visual exams can be vastly inaccurate. The gonad surrounds their stomachs, so if the snail just had a huge meal, the score can be misleading. Researchers could also take a more accurate tissue sample, but it would kill the snail. And handling abalone in any way — including popping them from their aquarium tanks — is enough to stress them out and may kill their mood. Ultrasound, on the other hand, is noninvasive. The idea of using ultrasound on these snails first came about in 2019. Jackson Gross, an aquaculture specialist at the University of California, Davis, had used ultrasound on fin fish, such as sturgeon, to study their reproductive habits. He stumbled across a YouTube video of a veterinarian sliding an ultrasound probe along the bottom of a land snail. If it worked for land snails, wouldn’t it work for sea snails such as abalone, too? Sara Boles, a postdoctoral researcher working with Gross, discovered a way to perform ultrasounds on the abalone without taking them out of their tanks by holding the device up to their sticky feet. This quickly produced clear images of their swollen or flaccid gonads on a laptop appended to the ultrasound probe. In the new study, Boles and her colleagues examined more than 200 abalone and scored the thickness of their gonads on a scale of 1 to 5 to determine which are likely to spawn. With the ultrasound images, the gonad comes into focus: The stomach appears as a dark, cone-shaped item, and the slightly lighter gonad surrounds it. For now, these images can provide an easy way to score animals, but Gross and his colleagues want to verify if gonad thickness also correlates with reproductive success. Already, Boles has used the ultrasound to help Aquilino in her white abalone breeding efforts. Last spring, after Aquilino had already visually scored the animals, Boles brought the ultrasound to her lab. Of the eight white abalone that Boles rated highest after the ultrasound exam, five spawned; some snails with slightly lower ratings did, too. The method is already helping researchers revise their methods of assessing which abalone are most ready to reproduce. “It’s another way to help ensure that we have the best of the best,” Boles said.

Researchers see 'future of an entire species' in ultrasound technique

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