COVID -19: Truth will set you Free!!

* A virus is not a living organism, but a protein molecule (DNA) covered by a protective layer of lipid (fat), which, when absorbed by the cells of the ocular, nasal or buccal mucosa, changes their genetic code. (mutation) and convert them into aggressor and multiplier cells.

* Since the virus is not a living organism but a protein molecule, it is not killed, but decays on its own. The disintegration time depends on the temperature, humidity and type of material where it lies.

* The virus is very fragile; the only thing that protects it is a thin outer layer of fat. That is why any soap or detergent is the best remedy, because the foam CUTS the FAT (that is why you have to rub so much: for 20 seconds or more, to make a lot of foam). By dissolving the fat layer, the protein molecule disperses and breaks down on its own.

* HEAT melts fat; this is why it is so good to use water above 25 degrees Celsius for washing hands, clothes and everything. In addition, hot water makes more foam and that makes it even more useful.

* Alcohol or any mixture with alcohol over 65% DISSOLVES ANY FAT, especially the external lipid layer of the virus.

* Any mix with 1 part bleach and 5 parts water directly dissolves the protein, breaks it down from the inside.

* Oxygenated water helps long after soap, alcohol and chlorine, because peroxide dissolves the virus protein, but you have to use it pure and it hurts your skin.

* NO BACTERICIDE SERVES. The virus is not a living organism like bacteria; they cannot kill what is not alive with anthobiotics, but quickly disintegrate its structure with everything said.

* NEVER shake used or unused clothing, sheets or cloth. While it is glued to a porous surface, it is very inert and disintegrates only between 3 hours (fabric and porous), 4 hours (copper, because it is naturally antiseptic; and wood, because it removes all the moisture and does not let it peel off and disintegrates). ), 24 hours (cardboard), 42 hours (metal) and 72 hours (plastic). But if you shake it or use a feather duster, the virus molecules float in the air for up to 3 hours, and can lodge in your nose.

* The virus molecules remain very stable in external cold, or artificial as air conditioners in houses and cars. They also need moisture to stay stable, and especially darkness. Therefore, dehumidified, dry, warm and bright environments will degrade it faster.

* UV LIGHT on any object that may contain it breaks down the virus protein. For example, to disinfect and reuse a mask is perfect. Be careful, it also breaks down collagen (which is protein) in the skin, eventually causing wrinkles and skin cancer.

* The virus CANNOT go through healthy skin.

* Vinegar is NOT useful because it does not break down the protective layer of fat.

* NO SPIRITS, NOR VODKA, serve. The strongest vodka is 40% alcohol, and you need 65%.

* LISTERINE IF IT SERVES! It is 65% alcohol.

* The more confined the space, the more concentration of the virus there can be. The more open or naturally ventilated, the less.

* This is super said, but you have to wash your hands before and after touching mucosa, food, locks, knobs, switches, remote control, cell phone, watches, computers, desks, TV, etc. And when using the bathroom.

* You have to HUMIDIFY HANDS DRY from so much washing them, because the molecules can hide in the micro cracks. The thicker the moisturizer, the better. * Also keep your NAILS SHORT so that the virus does not hide there.

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New Sulfur-CNF-composites to Boost Performance of Lithium Sulfur Batteries

The researchers from Toyohashi University of Technology have found that cathode composites made by combining a sulfur active material and carbon nanofiber (CNF) developed using an electrostatic assembly method shows high discharge capacity equivalent to the theoretical capacity of sulfur and maintained high capacity after repeated charge-discharge cycles.

All-solid-state lithium sulfur batteries using sulfur-CNF composites and electrochemically stable Li2S-P2S5-LiI solid electrolytes synthesized by liquid phase process showed better results.

Low-cost Sulfur-carbon Composite

It is required that a sulfur active material and a carbon material are appropriately combined for making high-performance all-solid-state lithium sulfur batteries.

Conventionally, sulfur-carbon composites were synthesized by mechanical mixing, liquid mixing using a special organic solvent and complicated methods, in which sulfur is combined with a porous carbon material with a high specific surface area.

However, there were few reports that all-solid-state lithium sulfur batteries showed high capacity almost equivalent to the theoretical capacity of sulfur and high cycle stability.

Therefore, researchers focused on making a sulfur-carbon composite using a low-cost and simple electrostatic adsorption method which can uniformly combine nanomaterials. It was confirmed that sulfur at the sulfur-carbon composite synthesized by electrostatic adsorption method was accumulated on carbon nanofiber in the form of sheets.

Besides, researchers constructed all-solid-state lithium sulfur batteries and found that sulfur was fully utilized as an active material. The other merit is that this sulfur-carbon composite can be produced by lower cost than conventional processes.

Electrostatic Adsorption Method

In the electrostatic adsorption method, larger mother particles and smaller particles are electrostatically adsorbed by adjusting surface charges of the particles using polyelectrolytes in order to induce an electrostatic interaction. Although design of a variety of ceramic composites by the electrostatic adsorption were already reported, the adjustment of the surface charges of sulfur is difficult. However, our research group succeeded in the charge adjustment by using chemical reactions, in which Na2S and S reacted in ion-exchanged water to form aqueous soluble Na2S3. Therefore, this study achieved a new chemical process by applying the basic principle of electrostatic adsorption.

This method is a low-cost and relatively simple method for preparing sulfur-carbon composites, so it is suitable for mass production. All-solid-state lithium-sulfur batteries using a sulfur active material will be put to practical use by this method. Besides, it is expected the exponential improvement in the energy density of electric vehicles, large-sized power source batteries for household and business use.

Source: Toyohashi University of Technology

Lubrizol’s Powder TPU for 3DP Passes Skin Sensitization and Cytotoxicity Tests

Lubrizol Engineered Polymers has announced that their ESTANE® 3D TPU M95A powder TPU has passed skin sensitization and cytotoxicity tests in accordance with ISO 10993-5 and 10993-10. This enables ESTANE® 3D TPU M95A to be a valuable material solution for product designers exploring 3DP for end-use applications that require skin contact. This achievement builds on Lubrizol’s long legacy of developing innovative materials safe for use in skin contact applications – from consumer products to medical devices – and reflects Lubrizol’s ongoing mission to improve lives.

Broad List of Benefits

Skin contact suitability is the latest attribute to round out a broader list of benefits that ESTANE® 3D TPU M95A brings to applications, including high levels of flexibility, durability, impact and chemical resistance, and energy rebound. Commercially available, ESTANE® 3D TPU M95A is certified for use on the HP Jet Fusion™ 4200 series 3D printing solution – the only TPU certified as such. With an existing installed base, 3DP can be immediately deployed to helping solve critical supply shortages for Personal Protection Equipment needed to battle the COVID-19 pandemic.
David Pascual, Lubrizol’s global commercial 3D Printing lead, announced, “After first developing a new innovative powder TPU for use with the market leading HP 3D printing platform, it is a great step forward for this material to pass this skin sensitivity testing protocol.”

Fighting COVID-19 Battle

Pascual adds, “This will benefit product designers who are developing applications that require skin contact including personal protection devices so urgently needed right now to protect responders and caregivers fighting the COVID-19 battle. TPU’s versatility, durability and barrier properties bring value in these vital applications”.

Skin contact clearance also benefits applications in footwear, prosthetic and orthotic devices, and wearables for electronic devices where the benefits of energy rebound and impact absorption are particularly important.

Source: Lubrizol

New Nano-rubber-like Material to Replace Ruptured Human Tissues

Researchers from Chalmers University of Technology, Sweden, have created a new, rubber-like material with a unique set of properties, which could act as a replacement for human tissue in medical procedures. The material has the potential to make a big difference to many people's lives.

New Risk-free Adaptable Material Based on Nanostructuring

In the new study, the Chalmers researchers developed a material consisting solely of components that have already been shown to work well in the body.

The foundation of the material is the same as plexiglass, a material which is common in medical technology applications. Through redesigning its makeup, and through a process called nanostructuring, they gave the newly patented material a unique combination of properties. The researchers' initial intention was to produce a hard bone-like material, but they were met with surprising results.

Soft, Flexible and Extremely Elastic Material

“We were really surprised that the material turned to be very soft, flexible and extremely elastic. It would not work as a bone replacement material, we concluded. But the new and unexpected properties made our discovery just as exciting,” says Anand Kumar Rajasekharan, PhD in Materials Science and one of the researchers behind the study.

Multiple Application and Properties

The results showed that the new rubber-like material may be appropriate for many applications which require an uncommon combination of properties – high elasticity, easy processability, and suitability for medical uses.

“The first application we are looking at now is urinary catheters. The material can be constructed in such a way that prevents bacteria from growing on the surface, meaning it is very well suited for medical uses,” says Martin Andersson, research leader for the study and Professor of Chemistry at Chalmers.

Inducing Antibacterial Property Possible Too

The structure of the new nano-rubber material allows its surface to be treated so that it becomes antibacterial, in a natural, non-toxic way. This is achieved by sticking antimicrobial peptides – small proteins which are part of our innate immune system – onto its surface. This can help reduce the need for antibiotics, an important contribution to the fight against growing antibiotic resistance.

Reducing the Need for Drastic Surgery

Because the new material can be injected and inserted via keyhole surgery, it can also help reduce the need for drastic surgery and operations to rebuild parts of the body. The material can be injected via a standard cannula as a viscous fluid, so that it forms its own elastic structures within the body. Or, the material can also be 3D printed into specific structures as required.

“There are many diseases where the cartilage breaks down and friction results between bones, causing great pain for the affected person. This material could potentially act as a replacement in those cases,” Martin Andersson continues.

Presence of Three-dimensionally Ordered Nanopores

A further advantage of the material is that it contains three-dimensionally ordered nanopores. This means it can be loaded with medicine, for various therapeutic purposes such as improving healing and reducing inflammation. This allows for localized treatment, avoiding, for example, having to treat the entire body with drugs, something that could help reduce problems associated with side effects. Since it is non-toxic, it also works well as a filler – the researchers see plastic surgery therefore as another very interesting potential area of application for the new material.

“I am now working full time with our newly founded company, Amferia, to get the research out to industry. I have been pleased to see a lot of real interest in our material. It’s promising in terms of achieving our goal, which is to provide real societal benefit,” Anand concludes.

Source: Chalmers University of Technology

New High-speed Method to 3D Print Soft Objects for Medical Applications

Researchers at EPFL have developed a new, high-precision method for 3D-printing small, soft objects. The process, which takes less than 30 seconds from start to finish, has potential applications in a wide range of fields, including 3D bioprinting.

Making Tiny Objects with Precision and Resolution

It all starts with a translucent liquid. Then darker spots begin to form in the small, spinning container until, barely half a minute later, the finished product takes shape. This groundbreaking 3D-printing method can be used to make tiny objects with unprecedented precision and resolution – all in record time. The team has set up a spin-off, Readily3D, to develop and market the system.

The system is currently capable of making two-centimeter structures with a precision of 80 micrometers, about the same as the diameter of a strand of hair. But as the team develops new devices, they should be able to build much bigger objects, potentially up to 15 centimeters. “The process could also be used to quickly build small silicone or acrylic parts that don’t need finishing after printing,” says Christophe Moser, who heads the LAPD. Interior design could be a potentially lucrative market for the new printer.

Hardened by Light

The new technique draws on the principles of tomography, a method used mainly in medical imaging to build a model of an object based on surface scans.

The printer works by sending a laser through the translucent gel – either a biological gel or liquid plastic, as required. “It’s all about the light,” explains Paul Delrot, Readily3D’s CTO. “The laser hardens the liquid through a process of polymerization. Depending on what we’re building, we use algorithms to calculate exactly where we need to aim the beams, from what angles, and at what dose.”

Applications for Medicine and Biology

The technology could have innovative applications in a wide range of fields, but its advantages over existing methods – the ability to print solid parts of different textures – make it ideally suited for medicine and biology. The process could be used, for instance, to make soft objects such as tissue, organs, hearing aids and mouthguards.

“Conventional 3D printing techniques, known as additive manufacturing, build parts layer by layer,” explains Damien Loterie, the CEO of Readily3D. “The problem is that soft objects made that way quickly fall apart.” What’s more, the process can be used to make delicate cell-laden scaffolds in which cells can develop in a pressure-free 3D environment. The researchers teamed up with a surgeon to test 3D-printed arteries made using the technique. “The trial results were extremely encouraging,” says Loterie.

https://youtu.be/ONBHkzimRbg

Source: EPFL

Researcher Unveils Way to Develop Fire-resistant Cellulose-based Polymers

A team of researchers from Montana State University is developing methods to infuse polymers with particles called nanocrystals that are made from cellulose, a primary component of plants. Whereas many regular plastics can combust when subjected to fire or very intense heat, the nanoparticles are designed to limit the flames and prevent their spread.

Cellulose: The Building Blocks for Chemical Technologies

By processing wood pulp of other plant matter using special chemical reactions, cellulose molecules become building blocks for chemical technologies that operate at the nano scale, which concerns things as small as one-billionth of a meter.
Because the particles are so tiny, a relatively small volume of them can be mixed throughout a much larger amount of polymer. When the particles are coated in zinc oxide, a common ingredient found in many sunscreens, the zinc oxide's fire-resistant properties are imparted to the plastic.

Nanocrystals for Fire-safety and Light-weighting

The resulting plastic is a major improvement over fire-resistant polymers currently on the market, which rely on particles of glass or earthen minerals like talc. Because those particles are much bigger, they constitute up to one-fifth of the mass of product, making it much heavier. Those additives also make the plastic brittle, whereas nanocrystals can make it stronger.

But the cellulose crystals' nano size, combined with their polar charge like static electricity, makes them difficult to mix into the plastic. By their nature, they want to clump up instead of dispersing into the plastic.

Overcoming that is a focus of his research under the new NIST grant, which builds on research being funded by 149,000 USD from the U.S. Department of Agriculture's National Institute of Food and Agriculture.

New Kinds of Mechanical Mixers Being Tested

Dilpreet Bajwa, professor at MSU's Norm Asbjornson College of Engineering, will develop new kinds of mechanical mixers as well other treatments, such as zapping the nanocrystals with electrically charged gases, in order to mix the fire-resistant particles into plastic in his lab. The goal is to develop methods that can be integrated with existing machinery used in industry to form plastic parts, so that the technology could easily be adopted by manufacturers.

Plans for Future Commercialization

Nicole Stark, research chemical engineer at the Forest Products Lab, will oversee fire testing of the plastics the team makes. Another partner on the project, Mohiuddin Quadir, assistant professor in the Department of Coatings and Polymeric Materials at North Dakota State University, will develop methods for effectively coating the nanoparticles.

While the primary application would be in the automotive industry, the nanocrystal-infused plastic could improve upon products such as home siding as well as a variety of durable consumer goods where fire-resistance is important. "We think we'll be able to move this technology forward. We have proven the concept and now we will be working on how to move it toward commercialization," said Bajwa.

Source: Montana State University