When you're skiing down a mountain or driving a car, it helps to be able to see where you're going – but your goggles, glasses and windshield can fog up if there's a difference in temperature or humidity. Though there are wa...
Mar 6, 2019
Scientists have experimentally realized a plasmonic aerosol by efficiently transitioning liquid suspensions of gold nanorods into the gas phase and simultaneously measuring their optical spectra. They demonstrated that these aerosols are optically...
Mar 6, 2019
Scientists from the Higher School of Economics, Manchester University, the Ulsan National Institute of Science & Technology and the Korea Institute of Science and Technology have developed a novel technology, which combines the fabrication...
Mar 6, 2019
Physicists from the University of Sheffield have discovered that when two atomically thin graphene-like materials are placed on top of each other their properties change, and a material with novel hybrid properties emerges, paving the way for desi...
Mar 6, 2019
Researchers at the Joint Quantum Institute have implemented an experimental test for quantum scrambling, a chaotic shuffling of the information stored among a collection of quantum particles.Their experiments on a group of seven atomic ions demons...
Mar 6, 2019
Nanoparticles can be as small as ten atoms in diameter, and their small size makes them especially susceptible to coarsening with continued use, which reduces functionality and degrades performance. A new NSF Grant will advance the understanding o...
Mar 5, 2019
Although it's important to get vaccines to people in developing nations and elsewhere, it's also crucial that those medications subsequently be administered in a safe and sterile manner. A new microneedle patch could help, as it incorporates bacteria-killing silver.
Microneedle patches, which we've seen before in recent years, have some key advantages over hypodermic injections – among these are the facts that they're painless, they don't need to be refrigerated, and they don't result in hazardous "sharps" waste.
Each patch consists of a small square of material that has an array of tiny medication-containing needles on its underside. When the patch is applied to the patient like a band-aid, those microneedles pierce only the top layer of skin, not reaching any of the underlying nerves. The needles then harmlessly dissolve, releasing the medication into the bloodstream.
Developed by scientists at the University of South Australia, the new patch features a 15 x 15 array of microneedles, each one just 700 microns in length. Loaded with both a vaccine and silver nanoparticles, those needles are made of a biocompatible water-soluble polymer (carboxymethylcellulose), which completely dissolves within one minute of application. As a result, the medication is delivered, and bacteria in that area of the skin are eradicated.
In lab tests, the patch was found to kill off skin-infection-causing bacteria such as staphylococcus epidermis, escherichia coli and pseudomonas aeruginosa. The area of application subsequently remained bacteria-free for 24 hours.
"Infection from unsafe injection practices occurs all over the world, so technologies that protect people from unnecessary infection are critical," says lead scientist Prof. Krasimir Vasilev. "The dissolvable feature of our silver-loaded microneedles ensures absolutely no risk of reuse, removing one of the greatest causes of infection. And by incorporating the antibacterial silver nanoparticles into the dissolvable microneedles, we've created a very promising vehicle for safe vaccine and drug delivery around the world."
A paper on the research was recently published in the journal Chemical Communications.
Source: University of South Australia
Although it's important to get vaccines to people in developing nations and elsewhere, it's also crucial that those medications subsequently be administered in a safe and sterile manner. A new microneedle patch could help, as it incorporates bacteria-killing silver.
Microneedle patches, which we've seen before in recent years, have some key advantages over hypodermic injections – among these are the facts that they're painless, they don't need to be refrigerated, and they don't result in hazardous "sharps" waste.
Each patch consists of a small square of material that has an array of tiny medication-containing needles on its underside. When the patch is applied to the patient like a band-aid, those microneedles pierce only the top layer of skin, not reaching any of the underlying nerves. The needles then harmlessly dissolve, releasing the medication into the bloodstream.
Developed by scientists at the University of South Australia, the new patch features a 15 x 15 array of microneedles, each one just 700 microns in length. Loaded with both a vaccine and silver nanoparticles, those needles are made of a biocompatible water-soluble polymer (carboxymethylcellulose), which completely dissolves within one minute of application. As a result, the medication is delivered, and bacteria in that area of the skin are eradicated.
In lab tests, the patch was found to kill off skin-infection-causing bacteria such as staphylococcus epidermis, escherichia coli and pseudomonas aeruginosa. The area of application subsequently remained bacteria-free for 24 hours.
"Infection from unsafe injection practices occurs all over the world, so technologies that protect people from unnecessary infection are critical," says lead scientist Prof. Krasimir Vasilev. "The dissolvable feature of our silver-loaded microneedles ensures absolutely no risk of reuse, removing one of the greatest causes of infection. And by incorporating the antibacterial silver nanoparticles into the dissolvable microneedles, we've created a very promising vehicle for safe vaccine and drug delivery around the world."
A paper on the research was recently published in the journal Chemical Communications.
Source: University of South Australia
Although it's important to get vaccines to people in developing nations and elsewhere, it's also crucial that those medications subsequently be administered in a safe and sterile manner. A new microneedle patch could help, as it incorporates bacteria-killing silver.
Microneedle patches, which we've seen before in recent years, have some key advantages over hypodermic injections – among these are the facts that they're painless, they don't need to be refrigerated, and they don't result in hazardous "sharps" waste.
Each patch consists of a small square of material that has an array of tiny medication-containing needles on its underside. When the patch is applied to the patient like a band-aid, those microneedles pierce only the top layer of skin, not reaching any of the underlying nerves. The needles then harmlessly dissolve, releasing the medication into the bloodstream.
Developed by scientists at the University of South Australia, the new patch features a 15 x 15 array of microneedles, each one just 700 microns in length. Loaded with both a vaccine and silver nanoparticles, those needles are made of a biocompatible water-soluble polymer (carboxymethylcellulose), which completely dissolves within one minute of application. As a result, the medication is delivered, and bacteria in that area of the skin are eradicated.
In lab tests, the patch was found to kill off skin-infection-causing bacteria such as staphylococcus epidermis, escherichia coli and pseudomonas aeruginosa. The area of application subsequently remained bacteria-free for 24 hours.
"Infection from unsafe injection practices occurs all over the world, so technologies that protect people from unnecessary infection are critical," says lead scientist Prof. Krasimir Vasilev. "The dissolvable feature of our silver-loaded microneedles ensures absolutely no risk of reuse, removing one of the greatest causes of infection. And by incorporating the antibacterial silver nanoparticles into the dissolvable microneedles, we've created a very promising vehicle for safe vaccine and drug delivery around the world."
A paper on the research was recently published in the journal Chemical Communications.
Source: University of South Australia
Although it's important to get vaccines to people in developing nations and elsewhere, it's also crucial that those medications subsequently be administered in a safe and sterile manner. A new microneedle patch could help, as it incorporates bacteria-killing silver.
Microneedle patches, which we've seen before in recent years, have some key advantages over hypodermic injections – among these are the facts that they're painless, they don't need to be refrigerated, and they don't result in hazardous "sharps" waste.
Each patch consists of a small square of material that has an array of tiny medication-containing needles on its underside. When the patch is applied to the patient like a band-aid, those microneedles pierce only the top layer of skin, not reaching any of the underlying nerves. The needles then harmlessly dissolve, releasing the medication into the bloodstream.
Developed by scientists at the University of South Australia, the new patch features a 15 x 15 array of microneedles, each one just 700 microns in length. Loaded with both a vaccine and silver nanoparticles, those needles are made of a biocompatible water-soluble polymer (carboxymethylcellulose), which completely dissolves within one minute of application. As a result, the medication is delivered, and bacteria in that area of the skin are eradicated.
In lab tests, the patch was found to kill off skin-infection-causing bacteria such as staphylococcus epidermis, escherichia coli and pseudomonas aeruginosa. The area of application subsequently remained bacteria-free for 24 hours.
"Infection from unsafe injection practices occurs all over the world, so technologies that protect people from unnecessary infection are critical," says lead scientist Prof. Krasimir Vasilev. "The dissolvable feature of our silver-loaded microneedles ensures absolutely no risk of reuse, removing one of the greatest causes of infection. And by incorporating the antibacterial silver nanoparticles into the dissolvable microneedles, we've created a very promising vehicle for safe vaccine and drug delivery around the world."
A paper on the research was recently published in the journal Chemical Communications.
Source: University of South Australia
Although it's important to get vaccines to people in developing nations and elsewhere, it's also crucial that those medications subsequently be administered in a safe and sterile manner. A new microneedle patch could help, as it ...
Mar 5, 2019
IBM has published a roadmap for improving quantum computers based upon a “quantum volume” metric. IBM defined quantum volume in 2017. A quantum computer’s performance depends on many factors that can make assessing its power challenging. These fac...
Mar 5, 2019
A new coating prevents fogging on transparent surfaces. Rather than using electricity, the coating relies on sunlight to heat the surface.
Mar 5, 2019
Researchers at the University of Waterloo’s Institute for Quantum Computing (IQC) have developed a new quantum sensor that could mean a significant advancement in 3D imaging and monitoring for cancer patients.
Mar 5, 2019
