What is Nanotechnology and How Will it Change Our World?
Professor Russell Cowburn is a physicist who leads a large research group in Cambridge University studying nanotechnology and its application to computers, s...
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Erie Community Colleges efforts to launch a new degree program in nanotechnology received a major boost Tuesday with a state grant of $5.75 million.
The grant, announced by Gov. Andrew M. Cuomo in Syracuse, will allow the college to renovate a North Campus building and buy costly equipment used in nanotechnology training.
College officials hope to begin offering courses toward a new associates degree in nanotechnology in spring 2015.
Nanotechnology involves controlling and manipulating supersmall particles to create new products and processes in advanced manufacturing, according to the National Nanotechnology Initiative.
Working at the nanoscale one nanometer is a billionth of a meter manufacturers can take advantage of the unique physical, chemical, mechanical and optical properties of materials that naturally occur at that scale.
Nanotechnology, for example, is a key component in the creation of ever-faster computer chips.
College and state officials said the program would produce a trained workforce to take advantage of new opportunities at the RiverBend project and high-tech research and development positions at the Buffalo Niagara Medical Campus.
College officials were still waiting for approval from the state Education Department about their proposal for the new degree program, which would enroll about 50 new students per year.
We anticipate that we should hear this fall, said Richard C. Washousky, executive vice president of academic affairs at ECC.
The State University of New York gave its approval about a month ago, he said.
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In response to Islamic State, Mardi Gras society shelves Isis name In response to Islamic State, Mardi Gras society shelves Isis name
Updated: Thursday, September 18 2014 12:09 AM EDT2014-09-18 04:09:55 GMT
Updated: Wednesday, September 17 2014 12:21 AM EDT2014-09-17 04:21:43 GMT
Updated: Tuesday, September 16 2014 10:33 AM EDT2014-09-16 14:33:45 GMT
Updated: Tuesday, September 16 2014 2:19 AM EDT2014-09-16 06:19:02 GMT
Updated: Monday, September 15 2014 8:23 PM EDT2014-09-16 00:23:00 GMT
HOUSTON (KPRC/NBC) - A new mobile device that looks like an iPad uses a single drop of blood or saliva to diagnose some of the world's most devastating diseases.
Houston pediatrician Dr. Bas Nair is the Global Medical Advisor for the Nanobiosym board, the company behind the technology.
"With this nanotechnology, the diagnosis is one hour or less, and that is an amazing game changer. This is going to change the world," he says.
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2014 Nanotechnology for Health Care Conference - Timo ten Hagen Presentation
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By: Winthrop Rockefeller Institute
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2014 Nanotechnology for Health Care Conference - Timo ten Hagen Presentation - Video
A team of researchers has discovered a way to cool electrons to -228 C without external means and at room temperature, an advancement that could enable electronic devices to function with very little energy. The process involves passing electrons through a quantum well to cool them and keep them from heating.
The team details its research in "Energy-filtered cold electron transport at room temperature," which is published in Nature Communications on Wednesday, Sept. 10.
"We are the first to effectively cool electrons at room temperature. Researchers have done electron cooling before, but only when the entire device is immersed into an extremely cold cooling bath," said Seong Jin Koh, an associate professor at UT Arlington in the Materials Science and Engineering Department, who has led the research.
"Obtaining cold electrons at room temperature has enormous technical benefits. For example, the requirement of using liquid helium or liquid nitrogen for cooling electrons in various electron systems can be lifted."
Electrons are thermally excited even at room temperature, which is a natural phenomenon. If that electron excitation could be suppressed, then the temperature of those electrons could be effectively lowered without external cooling, Koh said.
The team used a nanoscale structure - which consists of a sequential array of a source electrode, a quantum well, a tunneling barrier, a quantum dot, another tunneling barrier, and a drain electrode - to suppress electron excitation and to make electrons cold.
Cold electrons promise a new type of transistor that can operate at extremely low-energy consumption. "Implementing our findings to fabricating energy-efficient transistors is currently under way," Koh added.
Khosrow Behbehani, dean of the UT Arlington College of Engineering, said this research is representative of the University's role in fostering innovations that benefit the society, such as creating energy-efficient green technologies for current and future generations.
"Dr. Koh and his research team are developing real-world solutions to a critical global challenge of utilizing the energy efficiently and developing energy-efficient electronic technology that will benefit us all every day," Behbehani said.
"We applaud Dr. Koh for the results of this research and look forward to future innovations he will lead."
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Nanotechnology aids in cooling electrons without external sources
Nanotechnology Super Soldier Suit
Nanotechnology Super Soldier Suit.
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n is for Nanotechnology
n is for Nanotechnology.
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Flower Kaleidoscopes 4K Test (with 10 seconds of nanotechnology) (Ultra HD)
I modified my kaleidoscope generator so it now can create 3840x2160 Ultra HD video. Amazing resolution to look at on my dual 1920x1080 monitors. I think the next kaleidoscope that I make...
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Flower Kaleidoscopes 4K Test (with 10 seconds of nanotechnology) (Ultra HD) - Video
In the race to find more effective ways to treat cancer, Boise State University biophysicist Daniel Fologea is working outside the rules of general mathematics that say one plus one equals two. In his world, one plus one adds up to a whole lot more.
While radiotherapy can precisely target just the tumor site, systemic chemotherapy spreads a wide net, sending drugs speeding throughout the entire body in an attempt to kill cancer cells while also killing many healthy cells. Neither of these methods is highly effective when applied alone, therefore separated sessions of chemo and radiotherapy are required when fighting against solid tumors.
Reports have shown that ideally, both methods would be employed at the same time. But doing so produces levels of toxicity that often are deadly. To reduce the remote toxicity inherent to chemotherapy, the drugs can be administered into solid tumors by using liposomes, which are nanoscale vesicles made from fats and loaded with anti-cancer drugs. Liposomes self-accumulate within the tumor but the loaded drugs will be released very slowly from their encasing.
A new patent awarded to Fologea, a professor in the Department of Physics, and co-researchers from the University of Arkansas in August 2014 holds promise of a way to combine the oomph of chemotherapy with the precision of radiotherapy, without harm to healthy cells.
In the new approach, said Fologea, "The liposomes are designed to release their precious cargo upon exposure to x-ray. Not only does this target where the medication goes, it also allows for a huge concentration of the drug to be released at once at the tumor site, thus increasing its efficacy. In addition, this combined modality of treatment employing concomitant radio and chemotherapy is supra-additive, which means it is several times more efficient than each therapy applied alone."
Here's how it works: liposomes have small scintillating nanoparticles embedded within them. When hit with the x-ray, they emit ultraviolet (UV) light. UV light triggers the release of Ca2+ entrapped into a photolabile cage inside the liposomes. The free Ca2+ activates an enzyme called phospholipase A2 that starts chewing the fats in the wall of the liposomes and triggers the fast release of the drug.
Now that they have a patent on the technique, researchers still expect several years of testing before the method is approved and available for cancer patients.
In the meantime, Fologea completed the initial phase of another method to provide similar results by using only materials previously approved by the FDA for treatment of cancer and other diseases. This approach will pave the way for earlier translational studies.
Working with Boise State biology professor Cheryl Jorcyk, he is looking for ways to put antibodies on the surface of the liposome, allowing them to recognize and attack cancer cells that are circulating in the body. A distinct approach to develop liposomes useful for treatment of diabetes is under development with Boise State biology professor Denise Wingett.
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Liposome research meets nanotechnology to improve cancer treatment
Science on Saturday: Strange Stuff: From smart materials to nanotechnology
Science Saturdays is a special lecture series designed for families that brings the excitement of research and the passion of scientists to school-age childr...
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Science on Saturday: Strange Stuff: From smart materials to nanotechnology - Video
UTS Science: Green nanotechnology
Angus Gentle - It #39;s a vicious cycle. When the temperature gets hotter, we turn up the air-conditioning and the more air-conditioning we use, the more greenho...
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PUBLIC RELEASE DATE:
12-Sep-2014
Contact: Tasgola Bruner TasgolaB@peta.org 404-907-4172 People for the Ethical Treatment of Animals
Washington, D.C. Experts from the PETA International Science Consortium will present strategies for optimizing nonanimal testing methods at a workshop that will examine the strengths and limitations of current alternatives to using animals to assess nanotoxicity.
Dr. Amy Clippinger, science advisor for the Science Consortium, will discuss exposure considerations that need to be addressed in order to optimize nonanimal testing strategies for human health risk assessment at the Nano Risk Analysis II Workshop in Washington, D.C. to be held September 15-16 at George Washington University's Milken Institute School of Public Health.
The Society for Risk Analysis organized the workshop to explore the way in which a multiple models approach can advance risk analysis of nanoscale materials. The workshop agenda includes presentations and panel discussions to inform the development of guidance for using these methods in a testing strategy to reduce and replace animal testing and to determine how they can be used in the risk analysis process.
The growing use of nanomaterials in consumer products has increased human exposure to these materials. Nanomaterials undergo many transformations between the time they are manufactured and the time humans are exposed, and thus it is critical to thoroughly characterize and test nanomaterials not only in their manufactured form but to examine them in the form that is most relevant to human exposure.
Says Dr. Clippinger, "It is important to understand the means by which humans may be exposed to a nanomaterial so that in vitro systems can be designed to mimic a realistic exposure. For example, in order to mimic the human situation, a material that is most likely to be inhaled would be coated in a physiologically relevant fluid, such as lung surfactant, and tested using human lung cells grown at the airliquid interface. Furthermore, it is critical to design testing strategies to incorporate in vitro methods in a risk assessmentbased paradigm that can be applied by regulators to make intelligent decisions regarding safety of nanomaterials."
Dr. Monita Sharma, nanotechnology expert for the Science Consortium, will also be a panelist for a discussion on applying nonanimal methods for human health risk assessment.
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PETA Science Consortium experts to present at international nanotechnology workshop
PUBLIC RELEASE DATE:
10-Sep-2014
Contact: Herb Booth hbooth@uta.edu 817-272-7075 University of Texas at Arlington @utarlington
A team of researchers has discovered a way to cool electrons to 228 C without external means and at room temperature, an advancement that could enable electronic devices to function with very little energy.
The process involves passing electrons through a quantum well to cool them and keep them from heating.
The team details its research in "Energy-filtered cold electron transport at room temperature," which is published in Nature Communications on Wednesday, Sept. 10.
"We are the first to effectively cool electrons at room temperature. Researchers have done electron cooling before, but only when the entire device is immersed into an extremely cold cooling bath," said Seong Jin Koh, an associate professor at UT Arlington in the Materials Science & Engineering Department, who has led the research. "Obtaining cold electrons at room temperature has enormous technical benefits. For example, the requirement of using liquid helium or liquid nitrogen for cooling electrons in various electron systems can be lifted."
Electrons are thermally excited even at room temperature, which is a natural phenomenon. If that electron excitation could be suppressed, then the temperature of those electrons could be effectively lowered without external cooling, Koh said.
The team used a nanoscale structure which consists of a sequential array of a source electrode, a quantum well, a tunneling barrier, a quantum dot, another tunneling barrier, and a drain electrode to suppress electron excitation and to make electrons cold.
Cold electrons promise a new type of transistor that can operate at extremely low-energy consumption. "Implementing our findings to fabricating energy-efficient transistors is currently under way," Koh added.
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UT Arlington research uses nanotechnology to help cool electrons with no external sources
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Newswise Graphene possesses many outstanding properties: it conducts heat and electricity, it is transparent, harder than diamond and extremely strong. But in order to use it to construct electronic switches, a material must not only be an outstanding conductor, it should also be switchable between on and off states. This requires the presence of a so-called bandgap, which enables semiconductors to be in an insulating state. The problem, however, is that the bandgap in graphene is extremely small. Empa researchers from the nanotech@surfaces laboratory thus developed a method some time ago to synthesise a form of graphene with larger bandgaps by allowing ultra-narrow graphene nanoribbons to grow via molecular self-assembly.
Graphene nanoribbons made of differently doped segments The researchers, led by Roman Fasel, have now achieved a new milestone by allowing graphene nanoribbons consisting of differently doped subsegments to grow. Instead of always using the same pure carbon molecules, they used additionally doped molecules molecules provided with foreign atoms in precisely defined positions, in this case nitrogen. By stringing together normal segments with nitrogen-doped segments on a gold (Au (111)) surface, so-called heterojunctions are created between the individual segments. The researchers have shown that these display similar properties to those of a classic p-n-junction, i.e. a junction featuring both positive and negative charges across different regions of the semiconductor crystal, thereby creating the basic structure allowing the development of many components used in the semiconductor industry. A p-n junction causes current to flow in only one direction. Because of the sharp transition at the heterojunction interface, the new structure also allows electron/hole pairs to be efficiently separated when an external voltage is applied, as demonstrated theoretically by theorists at Empa and collaborators at Rensselaer Polytechnic Institute The latter has a direct impact on the power yield of solar cells. The researchers describe the corresponding heterojunctions in segmented graphene nanoribbons in the recently published issue of Nature Nanotechnology.
Transferring graphene nanoribbons onto other substrates In addition, the scientists have solved another key issue for the integration of graphene nanotechnology into conventional semiconductor industry: how to transfer the ultra-narrow graphene ribbons onto another surface? As long as the graphene nanoribbons remain on a metal substrate (such as gold used here) they cannot be used as electronic switches. Gold conducts and thus creates a short-circuit that sabotages the appealing semiconducting properties of the graphene ribbon. Fasels team and colleagues at the Max-Planck-Institute for Polymer Research in Mainz have succeeded in showing that graphene nanoribbons can be transferred efficiently and intact using a relatively simple etching and cleaning process onto (virtually) any substrate, for example onto sapphire, calcium fluoride or silicon oxide.
Graphene is thus increasingly emerging as an interesting semiconductor material and a welcome addition to the omnipresent silicon. The semiconducting graphene nanoribbons are particularly attractive as they allow smaller and thus more energy efficient and faster electronic components than silicon. However, the generalized use of graphene nanoribbons in the electronics sector is not anticipated in the near future, due in part to scaling issues and in part to the difficulty of replacing well-established conventional silicon-based electronics. Fasel estimates that it may still take about 10 to 15 years before the first electronic switch made of graphene nanoribbons can be used in a product.
Graphene nanoribbons for photovoltaic components Photovoltaic components could also one day be based on graphene. In a second paper published in Nature Communications, Pascal Ruffieux also from the Empa nanotech@surfaces laboratory and his colleagues describe a possible use of graphene strips, for instance in solar cells. Ruffieux and his team have noticed that particularly narrow graphene nanoribbons absorb visible light exceptionally well and are therefore highly suitable for use as the absorber layer in organic solar cells. Compared to normal graphene, which absorbs light equally at all wavelengths, the light absorption in graphene nanoribbons can be increased enormously in a controlled way, whereby researchers set the width of the graphene nanoribbons with atomic precision.
Support This work was supported by the Swiss National Science Foundation, by the European Science Foundation (ESF), by the European Research Council (ERC) and by the Office of Naval Research.
Graphene possesses many outstanding properties: it conducts heat and electricity, it is transparent, harder than diamond and extremely strong. But in order to use it to construct electronic switches, a material must not only be an outstanding conductor, it should also be switchable between on and off states. This requires the presence of a so-called bandgap, which enables semiconductors to be in an insulating state. The problem, however, is that the bandgap in graphene is extremely small. Empa researchers from the nanotech@surfaces laboratory thus developed a method some time ago to synthesise a form of graphene with larger bandgaps by allowing ultra-narrow graphene nanoribbons to grow via molecular self-assembly.
Graphene nanoribbons made of differently doped segments The researchers, led by Roman Fasel, have now achieved a new milestone by allowing graphene nanoribbons consisting of differently doped subsegments to grow. Instead of always using the same pure carbon molecules, they used additionally doped molecules molecules provided with foreign atoms in precisely defined positions, in this case nitrogen. By stringing together normal segments with nitrogen-doped segments on a gold (Au (111)) surface, so-called heterojunctions are created between the individual segments. The researchers have shown that these display similar properties to those of a classic p-n-junction, i.e. a junction featuring both positive and negative charges across different regions of the semiconductor crystal, thereby creating the basic structure allowing the development of many components used in the semiconductor industry. A p-n junction causes current to flow in only one direction. Because of the sharp transition at the heterojunction interface, the new structure also allows electron/hole pairs to be efficiently separated when an external voltage is applied, as demonstrated theoretically by theorists at Empa and collaborators at Rensselaer Polytechnic Institute The latter has a direct impact on the power yield of solar cells. The researchers describe the corresponding heterojunctions in segmented graphene nanoribbons in the recently published issue of Nature Nanotechnology.
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Mod-01 Lec-02 Introduction to Nanotechnology Contd..
Nano structured materials-synthesis, properties, self assembly and applications by Prof. A.K. Ganguli,Department of Nanotechnology,IIT Delhi.For more details...
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Mod-01 Lec-02 Introduction to Nanotechnology Contd.. - Video
Mod-01 Lec-01 Introduction to Nanotechnology
Nano structured materials-synthesis, properties, self assembly and applications by Prof. A.K. Ganguli,Department of Nanotechnology,IIT Delhi.For more details...
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Mumbai, September 5:
The recently formed Nanotechnology Forum for Indian Scientists (NT Forum) has announced an award for outstanding research in fabrication and characterisation of nanomaterials and structures in physical or bio nanotechnology. The Oxford Instruments Young Nanoscientist India Award 2015 was formally launched by the Chairman of the selection committee for the NT Forum, Prof CNR Rao.
The winner of the award will receive a trophy, a certificate, cash prize of 2 lakh and an opportunity to deliver lectures in foreign universities.
Oxford Instruments are suppliers of high technology tools and systems for research and industry.
Anurag Tandon, Managing Director, Oxford Instruments India Pvt Ltd said, Oxford Instruments intends to strengthen its support by creating a platform to increase scientific exchange between India and other nations."
The Oxford Instruments Young Nanoscientist India Award 2015 award will be presented biennially.
(This article was published on September 5, 2014)
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Nanofood: Nanotechnology In Food I The Feed
Remember the debate over genetically modified food? The debate over nanofood is just heating up. You #39;re probably already eating food with nanoparticles. Face...
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Nanotechnology in water? Nano-tubules?
Timothytrespas a targeted human being given morgellons, tortured, poisoned, microwaved, gangstalked, attacked by genetically modified creatures (mites ?) that bite embed under the skin, mate,...
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