Category Archives: Nanotech

Washington, Mar 6 (PTI) Scientists are developing a new method to safely bring frozen organs back to life using nanotechnology, an advance that may make donated organs for transplants available to virtually everyone who needs them.

The number of donated organs that may be transplanted into patients could increase greatly if there were a way to freeze and reheat organs without damaging the cells within them.

Scientists, including those from the University of Minnesota in the US, developed a way to safely thaw frozen tissues with the aid of nanoparticles.

The researchers manufactured silica-coated nanoparticles that contained iron oxide. When they applied a magnetic field to frozen tissues suffused with the nanoparticles, the nanoparticles generated heat rapidly and uniformly.

The tissue samples warmed up at rates of up to more than 130 degrees Celsius per minute, which is 10 to 100 times faster than previous methods.

Researchers tested their method on frozen human skin cells, segments of pig heart valves and sections of pig arteries.

None of the rewarmed tissues displayed signs of harm from the heating process, and they preserved key physical properties such as elasticity.

The researchers were able to wash away the nanoparticles from the sample after thawing, Live Science reported.

Previous research successfully thawed tiny biological samples that were only one to three milliliters in volume.

The new technique works for samples that are up to 50 millilitres in size. The researchers said there is a strong possibility they could scale up their technique to even larger systems, such as organs.

We are at the level of rabbit organs now. We have a way to go for human organs, but nothing seems to preclude us from that, said John Bischof, from University of Minnesota.

The findings are published in the journal Science Translational Medicine.

This is published unedited from the PTI feed.

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Nanotech may help bring frozen organs back to life - India.com - India.com

Defense industry veteran Kevin Ruelas and his team announce the acquisition of Ti-Nanotech, formerly known as Crista Chemical Company.

SAN DIEGO (PRWEB) March 02, 2017

Defense industry veteran Kevin Ruelas and his team announce the acquisition of Ti-Nanotech, formerly known as Crista Chemical Company. Ti-Nanotech will join Syndetix, Inc., under the umbrella of the newly formed Defense and Government Solutions (DGS).

"We're thrilled to bring Ti-Nanotech's advanced and patented technology to our customers in the defense and law enforcement sectors," stated DGS and Ti-Nanotech CEO Ruelas. "By bringing Ti-Nanotech together with Syndetix under DGS, we see opportunities for growth in sectors where material strength and reliability are paramount, including aerospace and commercial products such as batteries, medical devices and military hardware."

Ti-Nanotech began as Cristal Chemical Company in 1999, focused on finding a non-toxic replacement for cadmium plating. They sought to do this without compromising strength, adding weight or creating corrosion issues. The solution was titanium plating for end products, which has applications in a variety of sectors including defense, commercial, aerospace and automotive.

Since then, the company has earned a reputation as a thought-leader in titanium coating. Titanium can be stronger than steel while being much lighter with the highest strength to weight ratio of any metal. It is also non-toxic and one of the only metals able to be put inside humans. Ti-Nanotech's patented technology makes titanium coating possible for a wide variety of industries including armored shields, reinforced consumer products such as medical devices and the growing field of next-generation batteries.

Ti-Nanotech will join Syndetix Inc., a service-disabled, veteran-owned small business and technology developer for the defense and law enforcement industries, under the umbrella of the newly formed DGS. With established contacts and customers in the defense and law enforcement sectors, DGS will introduce Ti-Nanotech's technologies to new audiences. With the formation of DGS both companies will be able to expand by reaching new customers leveraging their technology and service offerings including the aerospace industry and medical device manufacturers.

About DGS Formed in 2016, Defense and Government Solutions (DGS) and its holdings serve clients in the defense, law enforcement and commercial sectors. Its main holdings include Ti-Nanotech, focused on titanium electromagnetic plating for end products, and Syndetix, a technology company focused on designing, engineering and building technologies for international and domestic security forces. DGS is a service-disabled, veteran-owned small business based in Las Cruces, N.M.

About Ti-Nanotech Since 1999, Ti-Nanotech has been in industry leader in titanium plating for end products. From the defense sector, to the aerospace industry and even the medical device field, Ti-Nanotech's titanium electromagnetic plating process can be applied to a variety of end products. Ti-Nanotech is a defense and government solutions company based in San Diego.

About Syndetix Since 1985, Syndetix, Inc. has been designing, engineering and building technologies that protect those who protect us. Founded as a technology spinoff from New Mexico State University's Physical Science Laboratory, Syndetix, Inc. provides high-caliber design and engineering services for the Department of Defense, Department of Justice and civilian markets to enable mission critical success.

For the original version on PRWeb visit: http://www.prweb.com/releases/2017/03/prweb14107155.htm

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Ti-Nanotech Acquired by Defense Industry Veteran Kevin Ruelas ... - Benzinga

Nanotech Security Corp (NTS) Price Target Cut to C$1.75 The Cerbat Gem Nanotech Security Corp logo Nanotech Security Corp (CVE:NTS) had its target price decreased by equities research analysts at Canaccord Genuity from C$2.00 to C$1.75 in a research note issued to investors on Thursday. The firm currently has a ...

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Nanotech Security Corp (NTS) Price Target Cut to C$1.75 - The Cerbat Gem

Silently helping our clothes resist stains, allowing spray-on sunscreen to more easily protect our skin and enhancing paints, coatings and plastics. Nanoparticles have even made their way into our food, including powdered sugar on pastries, chewing gum and other products.

Dr. Christa Watson Wright, assistant professor of environmental health in the Georgia State School of Public Health, researches the potential health impacts of nanoparticles, which can also be found in such everyday items as cosmetics, the toner in photocopiers and artificial turf.

Nanoparticles cant be seen with the eye or even with a microscope. For a sense of perspective, consider the diameter of a strand of human hair. That cross section of hair is the size of 100,000 nanometers. (A nanometer is a billionth of a meter.)

Wright is among a pioneering group of scientists raising concerns about these super tiny particles. While many nanomaterials start out as substances that are considered safe at normal size, there has been very little testing into how safe these particles are when they are made so small they can travel easily from the lungs into other parts of the body, even slipping into cells and potentially causing damage to DNA.

The impact could be greater for populations that are already vulnerable, such as people with inherited disorders, especially with long-term exposure.

In one study, Wright found that certain metal-based engineered nanoparticles, widely used in cosmetics and sunscreens such as zinc oxide, could cause DNA damage in human cells.

People who work in the recycling and waste disposal industries may also face an increased risk due to exposure to nanomaterials.

In a recent study, Wright found that high-temperature incineration, a common disposal method for thermoplastics that contain nanoparticles, can result in a nanofiller effect where higher toxicity was observed in the particles released during burning of nano-enabled plastics than particles emitted from burned regular materials (plastics containing no nanomaterials).

About 20,000 metric tons of nanocomposite materials (such as vinyl siding) are sent to U.S. recycling facilities, landfills or disposed of through incineration each year.

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Nanotech's Possible Hazards Investigated - Controlled Environments Magazine

Frozen organs could be brought back to life safely one day with the aid of nanotechnology, a new study finds. The development could help make donated organs available for virtually everyone who needs them in the future, the researchers say.

The number of donated organs that could be transplanted into patients could increase greatly if there were a way to freeze and reheat organs without damaging the cells within them.

In the new work, scientists developed a way to safely thaw frozen tissues with the aid of nanoparticles particles only nanometers or billionths of a meter wide. (In comparison, the average human hair is about 100,000 nanometers wide.) [9 Most Interesting Transplants]

The researchers manufactured silica-coated nanoparticles that contained iron oxide. When they applied a magnetic field to frozen tissues suffused with the nanoparticles, the nanoparticles generated heat rapidly and uniformly. The tissue samples warmed up at rates of up to more than 260 degrees Fahrenheit (130 degrees Celsius) per minute, which is 10 to 100 times faster than previous methods.

The scientists tested their method on frozen human skin cells, segments of pig heart valves and sections of pig arteries. None of the rewarmed tissues displayed signs of harm from the heating process, and they preserved key physical properties such as elasticity. Moreover, the researchers were able to wash away the nanoparticles from the sample after thawing.

Previous research successfully thawed tiny biological samples that were only 1 to 3 milliliters in volume. This new technique works for samples that are up to 50 milliliters in size. The researchers said there is a strong possibility they could scale up their technique to even larger systems, such as organs.

"We are at the level of rabbit organs now," said study senior author John Bischof, a mechanical and biomedical engineer at the University of Minnesota. "We have a way to go for human organs, but nothing seems to preclude us from that."

However, this research will likely not make it possible to return frozen heads back to life anytime soon, if ever, the scientists noted.

Since the first successful kidney transplant in 1954, organ transplantation has saved the lives of hundreds of thousands of patients. If it weren't for the large and growing shortage of donor organs, the life-saving procedure might help even more people. According to the U.S. Organ Procurement and Transplantation Network, more than 120,000 patients are currently on organ-transplant waitlists in the United States, and at least 1 in 5 patients on these waitlists die waiting for an organ that they never receive.

Right now, the majority of organs that could potentially be used for transplants are discarded, in large part because they can only be safely preserved for 4 to 36 hours. If only half the hearts and lungs that are discarded were successfully transplanted, the waitlists for those organs could be eliminated in two to three years, according to the Organ Preservation Alliance.

One way to save donated organs for transplantation is to freeze them. Ice crystals that can damage cells typically form during freezing, but in prior work, researchers have found a technique known as vitrification which involves flooding biological specimens with antifreeze-like compounds that could help cool down organs to stave off decay, while also preventing the formation of ice crystals.

Unfortunately, ice crystals can also form during the reheating process. Moreover, if thawing is not uniform across samples, fracturing or cracking may occur. Although scientists had developed methods to safely use freezing-cold temperatures to "cryopreserve" tissues and organs, they had not yet developed a way to safely reheat them. [5 Amazing Technologies That Are Revolutionizing Biotech]

In future research, scientists will attempt to transplant thawed tissues into living animals to see how well they do. "From my perspective and my collaborators' perspective, there is no reason why that should not work," Bischof told Live Science.

However, the researchers stressed that it was unlikely these findings would apply to the controversial field of cryonics, which seeks to freeze patients or their brains in the hope that future scientists will find a way to safely revive people. "There are huge scientific hurdles ahead of us, and it's rather premature to get into rewarming a whole person," Bischof said.

"Even if you preserved the whole body, the chances that neural pathways established during life were maintained during and after cryopreservation are probably remote," said study co-author Kelvin Brockbank, chief executive officer of Tissue Testing Technologies in North Charleston, South Carolina. "I don't think we'll see success for rewarming whole bodies within the next hundred years."

The scientists detailed their findings online March 1 in the journal Science Translational Medicine.

Original article on Live Science.

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Reviving Frozen Organs: Nanotech May Pave the Way - Live Science

SAN DIEGO (PRWEB) March 02, 2017

Defense industry veteran Kevin Ruelas and his team announce the acquisition of Ti-Nanotech, formerly known as Crista Chemical Company. Ti-Nanotech will join Syndetix, Inc., under the umbrella of the newly formed Defense and Government Solutions (DGS).

Were thrilled to bring Ti-Nanotechs advanced and patented technology to our customers in the defense and law enforcement sectors, stated DGS and Ti-Nanotech CEO Ruelas. By bringing Ti-Nanotech together with Syndetix under DGS, we see opportunities for growth in sectors where material strength and reliability are paramount, including aerospace and commercial products such as batteries, medical devices and military hardware.

Ti-Nanotech began as Cristal Chemical Company in 1999, focused on finding a non-toxic replacement for cadmium plating. They sought to do this without compromising strength, adding weight or creating corrosion issues. The solution was titanium plating for end products, which has applications in a variety of sectors including defense, commercial, aerospace and automotive.

Since then, the company has earned a reputation as a thought-leader in titanium coating. Titanium can be stronger than steel while being much lighter with the highest strength to weight ratio of any metal. It is also non-toxic and one of the only metals able to be put inside humans. Ti-Nanotechs patented technology makes titanium coating possible for a wide variety of industries including armored shields, reinforced consumer products such as medical devices and the growing field of next-generation batteries.

Ti-Nanotech will join Syndetix Inc., a service-disabled, veteran-owned small business and technology developer for the defense and law enforcement industries, under the umbrella of the newly formed DGS. With established contacts and customers in the defense and law enforcement sectors, DGS will introduce Ti-Nanotechs technologies to new audiences. With the formation of DGS both companies will be able to expand by reaching new customers leveraging their technology and service offerings including the aerospace industry and medical device manufacturers.

About DGS Formed in 2016, Defense and Government Solutions (DGS) and its holdings serve clients in the defense, law enforcement and commercial sectors. Its main holdings include Ti-Nanotech, focused on titanium electromagnetic plating for end products, and Syndetix, a technology company focused on designing, engineering and building technologies for international and domestic security forces. DGS is a service-disabled, veteran-owned small business based in Las Cruces, N.M.

About Ti-Nanotech Since 1999, Ti-Nanotech has been in industry leader in titanium plating for end products. From the defense sector, to the aerospace industry and even the medical device field, Ti-Nanotechs titanium electromagnetic plating process can be applied to a variety of end products. Ti-Nanotech is a defense and government solutions company based in San Diego.

About Syndetix Since 1985, Syndetix, Inc. has been designing, engineering and building technologies that protect those who protect us. Founded as a technology spinoff from New Mexico State Universitys Physical Science Laboratory, Syndetix, Inc. provides high-caliber design and engineering services for the Department of Defense, Department of Justice and civilian markets to enable mission critical success.

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Ti-Nanotech Acquired by Defense Industry Veteran Kevin Ruelas - PR Web (press release)

Harkesh Mittal (left), advisor and head of National Science and Technology Entrepreneurship Development Board, inaugurates the PSG Nanotech Research, Innovation and Incubation Centre in Coimbatore on Monday. L. Gopalakrishnan, Managing Trustee of PSG Sons and Charities is seen in the picture . | Photo Credit: S. Siva Saravanan With efforts to encourage commercial production of innovative products in areas such as biotechnology, internet of things, and nano technology, about 30 % companies at the technology business incubators in the country are in such high-end technologies, Harkesh Mittal, advisor and head of National Science and Technology Entrepreneurship Development Board (NSTEDB), told presspersons here on Monday. He inaugurated here the PSG Nanotech Research, Innovation, and Incubation Centre, which is a collaboration of the PSG Institute of Advanced Studies, PSG College of Technology, and PSG-STEP and is supported by the NSTEDB. This is the only incubation centre so far for nano technology and it will focus on smart textiles, healthcare, renewable energy, and plastic electronics. The area of nano technology is new and lot of research is happening in this field. There is a need for transfer of technology, taking ideas to the market. The incubator will support such an effort, he said. The NSTEDB aims to start 20 new technology business incubators every year in different verticals. There are 110 technology business incubators in the country and 50 of these give seed support to the incubatees. The NSTEDB gives ?10 crore to each of these incubators and the amount is disbursed as loan or equity in two to three years. The National Initiative for Developing and Harnessing Innovations was launched last year. Under this initiative, an incubator gets seed support, has the scope to upscale, and will get support to covert ideas into prototypes. PSG STEP will launch shortly an entrepreneurial residential programme. It is among the 10 incubators in the country that will offer fellowship for a year to students who are entrepreneurs. A student can receive up to ?30,000 a month. E...

News Source: http://www.thehindu.com/news/cities/Coimbatore/nanotech-incubation-centre-inaugurated/article17381285.ece

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Nanotech incubation centre inaugurated - NYOOOZ

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Aldis is a Computer Engineer by education and a technology enthusiast by passion. He has a stint of experience in Blogging and SEO and loves to write.

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Global Quantum Dot Display(QLED) Market 2017 Ocean NanoTech, Nanosys, QDVision - DailyHover

The Hindu

Nanotech incubation centre inaugurated The Hindu Harkesh Mittal (left), advisor and head of National Science and Technology Entrepreneurship Development Board, inaugurates the PSG Nanotech Research, Innovation and Incubation Centre in Coimbatore on Monday. L. Gopalakrishnan, Managing Trustee ... and more »

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Nanotech incubation centre inaugurated - The Hindu

Polymers (plastics) such as polyurethane and polystyrene have been the standard coating materials used in the design and development of products and equipment over the last several decades. We see and touch them numerous times on a daily basis. These coatings, while functional, have several deficiencies. Exposure to ultraviolet (UV) radiation causes photooxidative degradation, resulting in the breaking of polymer chains. We have all likely witnessed the destruction of these types of transparent coatings, often within a remarkably few years or months of application, despite all of the modern science of additives, designed to prevent the negative effects of UV light on polymers. Polymer coatings also have low resistance to abrasion, chemicals and extreme heat. In addition, these coatings have mediocre light transmission properties and often suffer from solarization and browning.

In stark contrast, the new breed of silica-based coatings represents an evolutionary advance over polymer-based offerings. Because silica is the primary material in glass, it shares the qualities of glass superior transparency and toughness yet has the flexibility and versatility normally associated with commonplace polymer coatings. These silica-based coatings also are highly resistant to UV degradation.

Silica-based coatings are also durable enough to be applied in thicknesses that would be far too low for any polymer to be effective. Although these coatings are glass based, their ultra-thin dimensions make them quite flexible, eliminating the main concern with glass, namely its fragility. Silica coatings have better light transmission, thermal properties, and acid resistance than traditional polymer coatings. Consistent with efforts by researchers worldwide to use eco-friendly materials, these coatings are also non-toxic and contain no fossil fuel elements, unlike their oil-based polymer counterparts. Silica coatings can also be tuned to provide a multitude of other benefits, such as abrasion resistance, omniphobicity, oleophobicity, and anti-reflectivity, to name a few.

Research and development divisions can leverage silica coatings ability to act as a durable and resilient host for functional materials, which when added to the surfaces of existing products, creates a variety of enhanced effects. Such functionality can be a game changer for the creation of products only feasible with this new glass-based coating. Some examples may include copper nanoparticles to reduce barnacle accumulation on nautical vessels and UV-blocking nanoparticles to mitigate radiation for both terrestrial and interstellar uses. For others, the added functionality allows for significant improvements to existing products, making them lighter, stronger and more durable.

Some companies, such as Enki technologies and DSM NV, have developed and used silica-based coatings as anti-reflective and soil-resistant coverings to improve solar photovoltaic panel efficiency. Companies such as Kristall and South Korea-based Ceko make scratch and oil-resistant, silica-based coatings offered to R&D pros within the automobile and cell phone markets, respectively. These R&D pros, in turn, use the coating to re-engineer a number of pieces used in the manufacture of these products. Other silica-based offerings also laud their hydrophobic and graffiti-resistant abilities.

U.S.-based MetaShield has created a silica-based coating that employs leading-edge nanotech principles to provide toughness and durability to a variety of substrates. Its 1 micron thick MetaShield coating meaningfully increases the mechanical strength of ordinary glass without adding size, weight or visible distortion. The company is in advanced-stage collaborations with major glass suppliers and mobile device companies to implement their glass strengthening technology in cell phones and other electronic devices.

As silica-based coatings gain acceptance, they enable research engineers and product developers worldwide to utilize materials that would otherwise not be practical due to their weak external durability. In the end, the main question is: How do plastic coatings compare with the new, nano-enabled glass coatings? Simply put, silica based coatings herald a significant disruption in the coatings market that has been dominated by waterborne polymers for the last half century.

About the Authors: Martin Ben-Dayan is CEO, and co-founder of MetaShield, along with William Bickmore who also serves as the companys Chief Technology Officer.

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Rise of Silica: Nanotechnology Innovation Creates Opportunity for Novel Product Development - R & D Magazine