|From: vitalremains||1/17/2017 10:44:39 AM|
|Graphene Temporary Tattoo Tracks Vital Signs|
By Katherine Bourzac
Posted 11 Jan 2017 | 15:00 GMT
A graphene health sensor that goes on the skin like a temporary tattoo takes measurements with the same precision as bulky medical equipment. The graphene tattoos, presented in December at the International Electron Devices Meeting in San Francisco, are the thinnest epidermal electronics ever made. They can measure electrical signals from the heart, muscles, and brain, as well as skin temperature and hydration.
Researchers at the University of Texas at Austin who are developing the sensors hope to develop them for consumer cosmetic use. They also hope the ultrathin sensors will provide a more comfortable replacement for existing medical equipment.
Today, if your doctor wants to monitor your heart rate over an extended period of time to help diagnose some cardiac irregularity, you’ll be sent home with a bulky EKG monitoring harness to wear for 24 hours. The Texas researchers hope to make a system that can take measurements of the same quality or better, but that’s unobtrusive. Deji Akinwande, an electrical engineer who specializes in 2D materials, is collaborating on the project with Nanshu Lu, who works on epidermal electronics.
Materials scientists have for years sung the praises of graphene’s electrical properties and mechanical toughness. What’s been underappreciated, says Akinwande, is that this single-atom-thick stuff is mechanically invisible. When it goes on the skin, it doesn’t just stay flat—it conforms to the microscale ridges and roughness of the epidermis. “You don’t feel it because it’s so compliant,” says Akinwande.
The Texas researchers start by growing single-layer graphene on a sheet of copper. The 2D carbon sheet is then coated with a stretchy support polymer, and the copper is etched off. Next, the polymer-graphene sheet is placed on temporary tattoo paper, the graphene is carved to make electrodes with stretchy spiral-shaped connections between them, and the excess graphene is removed. Now the sensor is ready to be applied by placing it on the skin and wetting the back of the paper.
In their proof-of-concept work, the researchers used the graphene tattoos to take five kinds of measurements, and compared the data with results from conventional sensors. The graphene electrodes can pick up changes in electrical resistance caused by electrical activity in the tissue underneath. When worn on the chest, the graphene sensor detected faint fluctuations that were not visible on an EKG taken by an adjacent, conventional electrode. The sensor readouts for electroencephalography (EEG) and electromyography (EMG, which can be used to register electrical signals from muscles and is being incorporated into next-generation prosthetic arms and legs) were also of good quality. And the sensors could measure skin temperature and hydration, something cosmetics companies are interested in, says Akinwande.
Graphene’s conformity to the skin might be what enables the high-quality measurements. Air gaps between the skin and the relatively large, rigid electrodes used in conventional medical devices degrade these instruments’ signal quality. Newer sensors that stick to the skin and stretch and wrinkle with it have fewer airgaps, but because they’re still a few micrometers thick, and use gold electrodes hundreds of nanometers thick, they can lose contact with the skin when it wrinkles. The graphene in the Texas researchers’ device is 0.3-nm thick. Most of the tattoo’s bulk comes from the 463-nm-thick polymer support.
The next step is to add an antenna to the design so that signals can be beamed off the device to a phone or computer, says Akinwande.
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|From: vitalremains||1/19/2017 1:59:12 PM|
|Why Iron man ditched iron for graphene|
By Jim Kakalios / Wired
Vanity comes with risks -- and sure enough, an assailant that Stark has driven to despair pulls a pistol and shoots the engineer-playboy in the face, point blank. Fortunately for Stark (and for us fans, who know that our old, more heroic Tony will eventually return), he is unharmed, and reveals to his assailant that his face is actually protected by a thin, transparent sheet of graphene, invisible and yet stronger than steel. Being only one atom thick, graphene passes 97% of visible light, making it more transparent than most glasses, so we can indeed see his face through this thin, carbon "faceplate."
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|From: vitalremains||1/26/2017 8:39:28 AM|
|Graphene 3D Lab rehashes 2016 work|
2017-01-19 12:32 ET - News Release
Mr. Daniel Stolyarov reports
GRAPHENE 3D LAB ANNOUNCES LETTER TO SHAREHOLDERS WITH OBJECTIVES FOR 2017
Graphene 3D Lab Inc. is providing its shareholders with a summary of its primary objectives for the upcoming year, as well as highlights of achievements in 2016.
In 2017, the company plans to grow on the solid foundation built in 2016, and continue to establish itself as a prominent advanced materials company and a leading graphene provider. The primary goal for 2017 is to take advantage of the company's cutting-edge IP (intellectual property) portfolio, and expand the offerings in industrial-grade graphene materials, coatings and composites. The company will continue to expand its commercial product offering and build strategic relationships with research institutions and partners from high-tech industries, including energy storage, automotive, robotics, aerospace, oil and gas, and water purification, as well as protective coatings and defence.
One of the key focus areas of 2017 will be to develop the next-generation graphene-enhanced lithium-ion batteries. This ambitious project, if successful, will result in the creation of a battery that will produce significantly higher power with similar energy density when compared with current lithium-ion batteries. These high performance batteries are critical for the future progress in mobile robotics, power tools, electrical vehicles and drones.
Highlights of 2016
In 2016, the company set out to expand and diversify its presence in the advanced materials space. Key achievements in the year toward this goal included: adding to its production and R&D (research and development) capabilities, establishing a new division, expanding its IP portfolio, developing new materials, strengthening its team with industry experts, and forming valuable business partnerships.
Industrial materials division: While the company has primarily focused on 3-D printing and research-grade materials as initial market entry points, the company now is aggressively seeking an opportunity to lower the production cost of graphene and address larger market opportunities. There is a strong level of interest in graphene products with exceptional properties across a broad spectrum of industries. To take advantage of this market opportunity, the company established its industrial materials division on March 26, 2016. Since its inception, several new materials have been developed, such as an ultralight graphene foam (potential uses in oils and solvents absorption) and graphene composite material G6-Impact.
2016 collaborations and partnerships: A substantial milestone achieved in the year of 2016 was signing a memorandum of understanding with Stony Brook University. This partnership will provide the company with access to the university's state-of-the-art research facilities to develop a next-generation lithium-ion battery.
The company also formed a joint production collaboration with Toner Plastics Inc. to expand its manufacturing capabilities for larger volumes and size ranges of 3-D printing filaments. The arrangement has also allowed for changes at the company's own facility, which has expanded its production capabilities for graphene nanoplatelets and has ensured that it now has sufficient production capacity to meet internal requirements for graphene for the company's complete product line.
In 2016, the company completed the integration of the operations of Graphene Laboratories Inc. (acquisition completed in December, 2015). Through this transaction, the company gained access to an impressive customer base and a consistent revenue stream through sales of high-profit-margin R&D graphene and other advanced materials.
The company also continued working with its Fortune 500 partner as announced on Nov. 24, 2015 (confidentiality agreement prevents disclosure the name of the partner). The goal of the collaborative project is to develop a novel graphene-based product using the resources and expertise of the company.
According to this agreement, all R&D expenses were to be handled by the Fortune 500 partner, as well as a first right of refusal granted to the company for supply of any graphene-related materials in future manufacturing and royalty obligations pertaining to any goods sold relating to intellectual property developed under the agreement. All IP developed under the scope of the agreement will be jointly held by both parties. At the moment, the company completed the first stage of the project and is waiting on the internal evaluation of the Fortune 500 partner for the next stage.
The revenue stream from this project can only be realized after commercialization of the new product and approval by the U.S. Food and Drug Administration, which is not guaranteed and could take an unspecified amount of time. Nevertheless, the company considers the research agreement as an important development because it allows the company to build a long-lasting relationship with industry leaders. The management of the company considers establishing such partnerships as an imperative for the company's strategic growth and will continue to look for similar rewarding opportunities.
In 2016, the company introduced several unique graphene products, such as graphene aerogel, which is in the class of ultralight materials and has the density of approximately 20 milligrams per cubic metre (which is only about 17 times heavier than air). This new material can remarkably hold up to 3,500 per cent to 8,000 per cent of its own weight of organic solvents and oils, while being unaffected by water. A potential application for this product could be in minimizing the damage caused by oil spills.
The company also continued to expand its portfolio of 3-D printing materials. Several new products have been introduced, such as the Scorpion flexible nylon, which was brought to market in March, 2016. This material offers outstanding mechanical performance of the 3-D-printed parts. The flexible nylon filament was well received by the 3-D printing community. In the independent review of emerging 3-D printing materials done by re3D, the material received an excellent evaluation.
Another addition to the family of 3-D printing materials with improved mechanical performance was graphene-carbon fibre composite (G6-Impact). This material exhibits outstanding vibration damping performance. The need for vibration damping manifests itself when 3-D printing is used for manufacturing. The mechanical components are assembled from multiple parts and held together by fasteners, which also play a role in damping unwanted vibration. Three-dimensional printing offers an effective way of manufacturing the mechanical parts as a single piece, thereby reducing the labour costs. However, the structural component built in this way would suffer from the destructive power of undesirable vibration. The purpose of the G6-Impact material is to resolve this issue. The company filed a provisional patent application summarizing the recipe and method of preparation of the material.
The company also expanded its line of conductive composites in response to the multiple requests from its customers who were looking for flexible 3-D printing materials by developing flexible conductive thermoplastic polyurethane. This highly flexible product is ideal for applications involving flexible sensors, electromagnetic/radio-frequency shielding, flexible conductive traces and electrodes to be used in wearable electronics.
3-D printer hardware
On Dec. 3, 2015, the company announced Romulus III, the prototype of functional 3-D printer capable of printing a working OLED (organic light-emitting diode) device. The motivation for this development was to demonstrate the benefits of functional 3-D printing and the capabilities of Graphene 3D's research team in the development of novel 3-D printing materials. Upon careful consideration, the management decided not to pursue further internal development of the functional 3-D printer hardware and stayed focused within the company's core expertise in advanced materials. The company is currently seeking partnerships with manufacturers of specialty 3-D printers suitable for functional 3-D printing and will keep shareholders informed on the progress made on this front.
Changes in management
The company also underwent significant board and management changes in 2016 by bringing on board industry experts. While it received valuable contributions from those who moved on during the year, the company believes that the new members of the board and management will be important components of its long-term vision. The following changes had occurred:
- John (Gary) Dyal and Paul Gill joined the board. Mr. Dyal was appointed as the board chairman.
- Ian Klassen and Robert Coultura, who were the members of the board in Matnic Resources Inc., the company that was acquired in a reverse takeover, left the board.
- Rob Scott and Jeff Dare joined the management team in the capacity of chief financial officer and corporate secretary. These appointments come with the departure of Robert Randall from the role of Graphene 3-D CFO, and Mr. Klassen as chief operating officer and corporate secretary.
New chairman of the board: Mr. Dyal is a recognized leader in the commercialization of nanotechnology and graphene-related products. He brings over 35 years of manufacturing and technology experience to the company. Mr. Dyal currently serves as vice-president of Cryo Pure Corp., an international company that packages and distributes industrial/ultrahigh-purity specialty gases, chemicals, cryogenics and cryogenic chemical delivery equipment. Prior to his co-founding of Cryo Pure, Mr. Dyal was the director of marketing and sales for CVD Equipment Corp., a company that designs, develops and manufactures a broad range of state-of-the-art graphene manufacturing equipment and process solutions for research and industrial applications. Mr. Dyal was responsible for global sales of R&D products related to graphene, carbon nanotubes, semiconducting nanowires, 2-D materials and thin films for research laboratories.
New CFO: Robert Scott, CPA, CA, CFA, brings more than 20 years of professional experience in corporate finance, accounting, and merchant and commercial banking. Mr. Scott earned his CFA in 2001, his CA designation in 1998 and has a BSc from the University of British Columbia. He is a founder and president of Corex Management Inc., a private company that provides accounting, administration and corporate compliance services to both privately held and publicly traded companies. Mr. Scott has a strong record of running cost-effective operations as he has served on the management teams and boards of numerous Canadian publicly traded companies. Mr. Scott has also listed several companies on the TSX Venture Exchange, gaining extensive initial public offering, reverse takeover, regulatory and reporting experience. He currently serves as the CFO of Riverside Resources Inc. and Nickel One Resources Inc., as well as being a board member of Genesis Metals Corp. and Mongolia Growth Group Ltd.
New corporate secretary: Mr. Dare has over eight years of professional experience with respect to managing external reporting and corporate compliance for TSX Venture Exchange-listed issuers. He currently serves as the corporate secretary for Riverside Resources, Kivalliq Energy Corp., Nickel One Resources, Bluestone Resources Inc. and Corex Management Inc., a private administration company. At Corex Management, he also advises a number of private companies that span through different industries and jurisdictions. Mr. Dare works closely with external partners and service providers in the areas of legal, compliance, transfer agency, audit, banking and insurance. Mr. Dare earned a BA from Simon Fraser University and has completed the Canadian Securities Course.
New director: Mr. Gill has extensive experience in restructuring organizations. He currently holds titles as the CEO of Lomiko Metals, CEO of Lomiko Technologies and a director of Graphene ESD. Until October, 2006, Mr. Gill was heavily involved in the dynamic growth stage of Norsemont Mining, where he helped take the market capitalization from $1-million to $50-million. Mr. Gill held various roles throughout his tenure with Norsemont Mining, where he served as the vice-president of business development, as well as the director, president and CEO, CFO and corporate secretary.
In 2017, the company intends to focus on advancing graphene materials toward commercialization. Management strongly believes that the company is at the turning point and has the potential for rapid growth in the near future. More specific objectives include:
The company's team is highly motivated and ready to implement the long-term vision for success. The company's management strives for excellence and is committed to increasing the long-term shareholder value.
- Accelerate R&D in energy storage sector, and develop a prototype of lithium-ion battery and prove its superiority to the commercial counterparts;
- Expand production capacity and lower price of graphene materials;
- Grow the company's business development team and establish collaboration with a number of large industrial organizations;
- Expand product line in 3-D printing space;
- Offer new innovative materials by incorporating graphene into polymers and resins with focus applications in defence, aerospace, transportation, energy and construction;
- Expand the company's IP portfolio.
About Graphene 3D Lab
Graphene 3D Lab is a world leader in the development, manufacturing and marketing of proprietary composites and coatings based on graphene and other advanced materials.
We seek Safe Harbor.
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|To: DanD who wrote (319)||1/29/2017 1:42:02 PM|
|This sounds to good to be true.....???|
Mass Producing Graphene
Previously, it was thought too expensive to manufacture graphene. Now, physicists from Kansas State University may have found a way to mass produce graphene cheaply, and all it takes are three easy steps and uses only three simple materials: hydrocarbon gas, oxygen, and a spark plug.
The method, which lead inventor Chris Sorensen had already applied and received a patent for, uses a contained detonation of carbon-containing materials. Basically, you put oxygen and acetylene or ethylene gas in a chamber, where the contained detonation using a spark plug is supposed to occur. After detonation, graphene is formed and the process is simple, low-cost, and could easily be scaled up for industrial use.
“We have discovered a viable process to make graphene,” Sorensen said. “Our process has many positive properties, from the economic feasibility, the possibility for large-scale production and the lack of nasty chemicals. What might be the best property of all is that the energy required to make a gram of graphene through our process is much less than other processes because all it takes is a single spark.”
Aside from this, Sorensen’s method produces graphene by bulk, so to speak. “The real charm of our experiment is that we can produce graphene in the quantity of grams rather than milligrams,” researcher Arjun Nepal said.
The method was discovered accidentally.....
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|To: DinoNavarre who wrote (328)||1/29/2017 2:09:28 PM|
|We need to recruit someone with the scientific knowledge to the board to answer these questions . |
But explosions creating Graphene does have a certain appeal. :)
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