'nanotechnology' in healthcare technology

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Future washable smart clothes powered by Wi-Fi will monitor your health

From phys.org - June 16, 2021 7:07 AM

Purdue University engineers have developed a method to transform existing cloth items into battery-free wearables resistant to laundry. These smart clothes are powered wirelessly through a flexible, silk-based coil sewn on the textile.

In the near future, all your clothes will become smart. These smart clothes will outperform conventional passive garments, thanks to their miniaturized electronic circuits and sensors, which will allow you to seamlessly communicate with your phone, computer, car and other machines.

This smart clothing will not only make you more productive but also check on your health status and even call for help if you suffer an accident. The reason why this smart clothing is not all over your closet yet is that the fabrication of this smart clothing is quite challenging, as clothes need to be periodically washed and electronics despise water.

Purdue engineers have developed a new spray/sewing method to transform any conventional cloth items into battery-free wearables that can be cleaned in the washing machine.

"By spray-coating smart clothes with highly hydrophobic molecules, we are able to render them repellent to water, oil and mud," said Ramses Martinez, an assistant professor in Purdue's School of Industrial Engineering and in the Weldon School of Biomedical Engineering in Purdue's College of Engineering. "These smart clothes are almost impossible to stain and can be used underwater and washed in conventional washing machines without damaging the electronic components sewn on their surface."

read the study at http://dx.doi.org/10.1016/j.nanoen.2021.106155

read the original and unedited version of the article at https://phys.org/news/2021-06-wearables-future-washable-smart-powered.html

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Stephanie Chavarria's curator insight, November 12, 2021 2:40 PM

this is interesting to buy it is beneficial for other's and for people that really need it for example this website helps and gives goods reasons why we should be this type of product it says it's foe your health and good and not needs.

Avidity Medical Design Consultants, LLC's comment, January 28, 2022 12:03 AM

Smart clothing is an excellent concept, especially being able to check on a person's health and call for help in the event of an accident. Thanks for sharing.

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Better RNA interference, inspired by nature

From www.medicalnewstoday.com - February 13, 2014 6:27 AM

Inspired by tiny particles that carry cholesterol through the body, MIT chemical engineers have designed nanoparticles that can deliver snippets of genetic material that turn off disease-causing genes.

This approach, known as RNA interference (RNAi), holds great promise for treating cancer and other diseases. However, delivering enough RNA to treat the diseased tissue, while avoiding side effects in the rest of the body, has proven difficult.

The new MIT particles, which encase short strands of RNA within a sphere of fatty molecules and proteins, silence target genes in the liver more efficiently than any previous delivery system, the researchers found in a study of mice.

"What we're excited about is how it only takes a very small amount of RNA to cause gene knockdown in the whole liver. The effect is specific to the liver - we get no effect in other tissues where you don't want it," says Daniel Anderson, the Samuel A. Goldblith Associate Professor of Chemical Engineering and a member of MIT's Koch Institute for Integrative Cancer Research.

more at http://www.medicalnewstoday.com/releases/272481.php

image credit: http://en.wikipedia.org/wiki/RNA_interference

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Nanomaterial fights back against resistant bacteria

From mlz-garching.de - June 11, 2021 3:57 AM

Antibiotic resistance is one of the greatest global health challenges of our time. Wastewater treatment plants are a true breeding ground for antibiotic-resistant germs, as this is where pathogens and antibiotic residues come together. The resistant bacterial strains then re-enter the environment via the treated water and can spread further.

Scientists at the University of Naples Federico II have now developed a nanomaterial to combat this problem. Supported by instrument scientist Dr. Judith Houston from Forschungszentrum Jülich (and meanwhile at the European Spallation Neutron Source ESS in Sweden), they have analyzed it at the Heinz Maier-Leibnitz Zentrum. The material is a hybrid of humic acid and titanium dioxide (TiO2). Humic acids (HAs), which occur naturally in humus soils, have useful properties that can counteract water pollution: on the one hand, they have an antibacterial effect, and on the other hand, they can bind small molecules such as antibiotics.

Highlights

• In situ hydrothermal route is a versatile approach to realize multifunctional hybrid nanomaterials for biowaste valorization.
• The combination at molecular scale of HAs and TiO2 improves the.•OH generation even under visible light;
• Hybrid HA-NDL/TiO2 nanomaterials exert a ROS-mediated antibacterial activity.
• Surface and colloidal properties make the hybrid nanomaterials as valid sequestering agents against antibiotics.
• A high and selective activity is shown in sequestering amoxicillin and tetracycline contaminants.

read the study at https://www.sciencedirect.com/science/article/abs/pii/S0013935120314596

read the entire article/press release at the MLZ website at https://mlz-garching.de/englisch/news-und-press/news-articles/nanomaterial-sagt-resistenten-bakterien-den-kampf-an.html

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Nanoparticle Pills Usher Medicine Into the Future

From healthworkscollective.com - December 2, 2013 2:26 PM

Although nanomedicine is a promising area of research, scientists have been unable to figure out a way to deliver drugs using nanoparticles other than by injection, which is both distasteful and inconvenient for patients. Now, a team of researchers from MIT and Brigham and Women's Hospital (BWH) have developed a new nanoparticle that can be absorbed through the digestive tract, allowing patients to take a pill instead of receiving injections.

"If you were a patient and you had a choice, there's just no question," Professor Robert Langer, of MIT's Koch Institute for Integrative Cancer Research, stated in a press release. “Patients would always prefer drugs they can take orally.”

Ultrafine particles, or nanoparticles, are between one and 100 nanometers in size. What makes nanoparticles so interesting to scientists, particularly in the field of medicine, is the fact that the physics underlying nanoparticles means that their properties are different from the properties of the bulk material. Additionally, size and surface characteristics of nanoparticles can be manipulated. Yet, nanoparticles have not yet been available as a pill because, despite their tiny size, they are unable to penetrate the intestinal lining. This is no simple feat as the lining is made of a layer of epithelial cells that join together forming impenetrable barriers known as tight junctions.

more at : http://healthworkscollective.com/susan-scutti/140111/nanoparticle-pills-usher-medicine-future-no-more-needles

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