These Nanostructures Are Hacking Nature
Microscopic structures that can't be seen with the naked eye have defied the laws of physics and may revolutionize the future. How Engineers Are Beating Nature - https://youtu.be/9nHo6O8JLvA Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1PxI Science GO - http://smart.link/57ae1a34dd168 Read More: Smallest Lattice Structure Worldwide http://phys.org/news/2016-02-smallest-lattice-worldwide.html "The object is exposed to temperatures of around 900°C in a vacuum furnace.
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Quantum RAM: Modelling the big questions with the very small

Griffith’s Professor Geoff Pryde, who led the project, says that such processes could be simulated using a “quantum hard drive”, much smaller than the memory required for conventional simulations.






“Stephen Hawking once stated that the 21st century is the ‘century of complexity’, as many of today’s most pressing problems, such as understanding climate change or designing transportation system, involve huge networks of interacting components,” he says.



“Their simulation is thus immensely challenging, requiring storage of unprecedented amounts of data. What our experiments demonstrate is a solution may come from quantum theory, by encoding this data into a quantum system, such as the quantum states of light.”

Einstein once said that “God does not play dice with the universe,” voicing his disdain with the idea that quantum particles contain intrinsic randomness.



“But theoretical studies showed that this intrinsic randomness is just the right ingredient needed to reduce the memory cost for modelling partially random statistics,” says Dr Mile Gu, a member of the team who developed the initial theory.

In contrast with the usual binary storage system - the zeroes and ones of bits - quantum bits can be simultaneously 0 and 1, a phenomenon known as quantum superposition.



The researchers, in their paper published in Science Advances, say this freedom allows quantum computers to store many different states of the system being simulated in different superpositions, using less memory overall than in a classical computer.



The team constructed a proof-of-principle quantum simulator using a photon - a single particle of light - interacting with another photon.

They measured the memory requirements of this simulator, and compared it with the fundamental memory requirements of a classical simulator, when used to simulate specified partly random processes.




The data showed that the quantum system could complete the task with much less information stored than the classical computer- a factor of 20 improvements at the best point.

“Although the system was very small - even the ordinary simulation required only a single bit of memory - it proved that quantum advantages can be achieved,” Pryde says.




“Theoretically, large improvements can also be realized for much more complex simulations, and one of the goals of this research program is to advance the demonstrations to more complex problems.”




Griffith University

New evidence that the universe is a hologram

The first observational evidence that the universe could be a hologram has been published in the journal Physical Review Letters.  The international study may lead to new beliefs on the Big Bang Theory and on quantum gravity, one of theoretical physics’ most profound problems.

Researchers from the University of Waterloo, Perimeter Institute for Theoretical Physics, University of Southampton (UK), INFN, Lecce (Italy) and the University of Salento (Italy), believe the study further explains how space and time emerged.




“We are proposing using this holographic universe, which is a very different model of the Big Bang than the popularly accepted one that relies on gravity and inflation,” said Niayesh Afshordi, professor of physics and astronomy at the University of Waterloo and Perimeter Institute, and lead author in the study.




“Each of these models makes distinct predictions that we can test as we refine our data and improve our theoretical understanding – all within the next five years.”



Theoretical physicists and astrophysicists first identified the concept of a holographic universe in the 1990s. Today, researchers have published observational evidence to support a 2D holographic explanation of the universe.




This work could lead to a functioning theory of quantum gravity, a theory that harmonizes quantum mechanics with Einstein’s theory of gravity.




“The key to understanding quantum gravity is understanding field theory in one lower dimension,” said Afshordi. “Holography is like a Rosetta Stone, translating between known theories of quantum fields without gravity and the uncharted territory of quantum gravity itself.”



Holography, with its more simplified approach, allows the researchers to study the dense conditions of quantum gravity during the Big Bang at its boundary, which provides as much information as studying the Big Bang itself.



From Planck Data to Planck Era: Observational Tests of Holographic Cosmology
Niayesh Afshordi, Claudio Corianò, Luigi Delle Rose, Elizabeth Gould, and Kostas Skenderis
Phys. Rev. Lett. 118, 041301 – Published 27 January 2017
DOI: 10.1103/PhysRevLett.118.041301




University of Waterloo

Read more news on http://www.nanotechnologyworld.org/news

Traffic jam in empty space

With these results, the researchers from the field of ultrafast phenomena and photonics build on their earlier findings, published in October 2015 in the scientific journal Science, where they have demonstrated direct detection of signals from pure nothingness. This essential scientific progress might make it possible to solve problems that physicists have grappled with for a long time, ranging from a deeper understanding of the quantum nature of radiation to research on attractive material properties such as high-temperature superconductivity. The new results are published on 19 January 2017 in the current online issue of the scientific journal NatureDOI: 10.1038/nature21024.




A world-leading optical measurement technique, developed by Alfred Leitenstorfer’s team, made this fundamental insight possible. A special laser system generates ultrashort light pulses that last only a few femtoseconds and are thus shorter than half a cycle of light in the investigated spectral range. One femtosecond corresponds to the millionth of a billionth of a second. The extreme sensitivity of the method enables 



detection of electromagnetic fluctuations even in the absence of intensity, that is, in complete darkness. Theoretically, the existence of these “vacuum fluctuations” follows from Heisenberg’s Uncertainty Principle. Alfred Leitenstorfer and his team succeeded in directly observing these fluctuations for the first time and in the mid-infrared frequency range, where even conventional approaches to quantum physics have not worked previously.




The conceptual novelty of the experiments is that instead of the frequency-domain techniques used so far, the physicists from Konstanz accessed quantum statistics of light directly in the time domain. At a chosen point in time, electric field amplitudes are directly measured instead of analysing light in a narrow frequency band. Studying different points in time results in characteristic noise patterns that allow for detailed conclusions about the temporal quantum state of light. As the laser pulse propagates together with the quantum field under study, the Konstanz physicists can, so to speak, bring time to a stop. Ultimately, space and time, that is “space-time”, behave absolutely equivalently in these experiments - an indication of the inherently relativistic nature of electromagnetic radiation.




As the new measurement technique neither has to absorb the photons to be measured nor amplify them, it is possible to directly detect the electromagnetic background noise of the vacuum and thus also the controlled deviations from this ground state, created by the researchers. “We can analyse quantum states without changing them in the first approximation”, says Alfred Leitenstorfer. The high stability of the Konstanz technology is an important factor for the quantum measurements, as the background noise of their ultrashort laser pulses is extremely low.



By manipulating the vacuum with strongly focused femtosecond pulses, the researchers come up with a new strategy to generate “squeezed light”, a highly nonclassical state of a radiation field. The speed of light in a certain segment of space-time is deliberately changed with an intense pulse of the femtosecond laser. This local modulation of the velocity of propagation “squeezes” the vacuum field, which is tantamount to a redistribution of vacuum fluctuations. Alfred Leitenstorfer compares this mechanism of quantum physics graphically with a traffic jam on the motorway: from a certain point on, some cars are going slower. As a result, traffic congestion sets in behind these cars, while the traffic density will decrease in front of that point. That means: when fluctuation amplitudes decrease in one place, they increase in another.




While the fluctuation amplitudes positively deviate from the vacuum noise at temporally increasing speed of light, a slowing down results in an astonishing phenomenon: the level of measured noise is lower than in the vacuum state - that is, the ground state of empty space.

The simple illustration with the traffic on a motorway, however, quickly reaches its limits: in contrast to this “classical physics” picture, where the number of cars remains constant, the noise amplitudes change completely differently with increasing acceleration and deceleration of space-time. In case of a moderate “squeezing”, the noise pattern is distributed around the vacuum level fairly symmetrically. With increasing intensity, however, the decrease inevitably saturates toward zero. The excess noise that is accumulated a few femtoseconds later, in contrast, increases non-linearly - a direct consequence of the Uncertainty Principle’s character as an algebraic product. This phenomenon can be equated with the generation of a highly nonclassical state of the light field, in which, for example, always two photons emerge simultaneously in the same volume of space and time.




The experiment conducted in Konstanz raises numerous new questions and promises exciting studies to come. Next, the physicists aim at understanding the fundamental limits of their sensitive detection method which leaves the quantum state seemingly intact. In principle, every experimental analysis of a quantum system would ultimately perturb its state. Currently, still a high number of individual measurements needs to be performed in order to obtain a result: 20 million repetitions per second. The physicists can not yet say with certainty whether it is a so-called “weak measurement” in conventional terms of quantum theory.




The new experimental approach to quantum electrodynamics is only the third method to study the quantum state of light. Now fundamental questions arise: What exactly is the quantum character of light? What actually is a photon? Concerning the last question, that much is clear to the Konstanz physicists: instead of a quantized packet of energy it is rather a measure for the local quantum statistics of electromagnetic fields in space-time.




Original publication: C. Riek, P. Sulzer, M. Seeger, A.S. Moskalenko, G. Burkard, D.V. Seletskiy, A. Leitenstorfer: “Subcycle Quantum Electrodynamics”. Nature, Advance online publication. DOI: 10.1038/nature21024




University of Konstanz 

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“This is the first time as I decide to establish a blog page. I am a student at University of Gaziantep,Çağlar GÖKIRMAKLI, and I want to be a one of the most important researcher in the future to all around world so my writing language is in English. I am interested in nanotechnology and its applications on food and food products, and also genetically modified foods. I am aimed to reach all of the people who are interested in these subjects and I want to study with them in the future. Godwilling I could be successed for this aim.”




TiNT: Today in Nanotechnology
Blog of TiNT - Today in Nanotech, a podcast for all things small and beautiful.
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“We at TiNT aim to inspire a sense of child-like wonder and curiosity in our listeners as we delve into the beautiful world of nanoscience, using music and imagination. We talk to passionate scientists, explain cutting edge research and innovation and, most of all, encourage you to understand the world in a whole new way.”

                         

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Our first episode will be released in late February/early March 2011 and will feature Sir Paul Callaghan, the founding director of the MacDiarmid Institute for Advanced Materials and NanotechnologyProfessor of Physics at Victoria University and founding Director of the NMR development company, Magritek. To say nothing of the books he has written, the radio shows he has featured on, his laboratory’s recent recognition by being awarded the Prime Minister’s Science Prize for 2010, and being in the finalists for New Zealander of the Year 2011.


We have also put up a new page with information about the hosts of the show and the best way to contact us and bring articles and news items to our attention.


See you in February….

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Welcome to TiNT: Today in Nanotechnology

Today in Nanotech is a new podcast beginning in February 2011 featuring all things Nanotechnology. We will be meeting with world-class nanotechnology researchers and talking about cutting edge science on a monthly basis.

                         

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You have obviously already found the blog (episodes will be posted here as soon as they become available!) but you can also follow us on twitter: TiNanotech or contact us via email todayinnanotech@gmail.com

Send us links to researchers, topics and papers you would like to hear discussed, or if you would like to feature as a participant on the show - and come back and get the first Episode in 2011!

Welcome to TiNT: Today in Nanotechnology

Today in Nanotech is a new podcast beginning in February 2011 featuring all things Nanotechnology. We will be meeting with world-class nanotechnology researchers and talking about cutting edge science on a monthly basis.

                         

External image

You have obviously already found the blog (episodes will be posted here as soon as they become available!) but you can also follow us on twitter: TiNanotech or contact us via email todayinnanotech@gmail.com

Send us links to researchers, topics and papers you would like to hear discussed, or if you would like to feature as a participant on the show - and come back and get the first Episode in 2011!




Nanotechnology News
Current Nanotechnology News
#Nanotechnology IBM Making Silicon to Sort Viruses and Other Nanoscale Biological Targets
See on Scoop.it - Nanotechnology News
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Low-cost technology could finally make lab-on-a-chip devices available for home users
See on spectrum.ieee.org
Could #Nanotechnology End Hunger?
See on Scoop.it - Nanotechnology News
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Increasing numbers of scientists are investigating how nanotechnology could help us grow more food with less.
See on ozy.com
#CNT #CarbonFixing #Nanotechnology #Environment - Carbon #nanofibres made from CO2 in the air - BBC News

See on Scoop.it - Nanotechnology News

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Chemists discover a way to take carbon dioxide from the air and make carbon nanofibres, a valuable manufacturing material.


See on bbc.com
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A ZnO nanostructure produced by chemical vapor deposition. Via.

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5 things you didn’t know about...bone-healing nanofibres

Credit: Riitta-Leena Inki

1. They are thin-film and fibrous biomaterials with similar structures and regeneration rates to that of bone.  

2. They were developed by Jani Holopainen, a doctoral researcher in the Department of Chemistry at the University of Helsinki, Finland.

3. The hydroxyapatite fibres are produced on a needleless, twisted wire electrospinning apparatus.

4. They could be used in bone implants and as scaffolding for bone regeneration. Cellular tests have been made already, but medical application is a way off.

5. The nanofibres would be used as a scaffold on the bone fracture or fault, activating the bone cells to reproduce. As the new cells are generated the nanofibres disintegrate, meaning there would be no need for further surgery to remove the nanofibre scaffold.




Find out more about this on page 21 of the upcoming March issue of Materials World.  

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Can the brain feel it? The world’s smallest extracellular needle-electrodes

A research team in the Department of Electrical and Electronic Information Engineering and the Electronics-Inspired Interdisciplinary Research Institute (EIIRIS) at Toyohashi University of Technology developed 5-μm-diameter needle-electrodes on 1 mm × 1 mm block modules. This tiny needle may help solve the mysteries of the brain and facilitate the development of a brain-machine interface. The research results were reported in Scientific Reports



on Oct 25, 2016.

(Image caption: Extracellular needle-electrode with a diameter of 5 μm mounted on a connector)




The neuron networks in the human brain are extremely complex. 




Microfabricated silicon needle-electrode devices were expected to be an innovation that would be able to record and analyze the electrical activities of the microscale neuronal circuits in the brain.



However, smaller needle technologies (e.g., needle diameter < 10 μm) are necessary to reduce damage to brain tissue. In addition to the needle geometry, the device substrate should be minimized not only to reduce the total amount of damage to tissue but also to enhance the accessibility



 of the 
electrode in the brain. Thus, these electrode technologies will realize new experimental neurophysiological concepts. 




A research team in the Department of Electrical and Electronic Information Engineering and the EIIRIS at Toyohashi University of Technology developed 5-
μm-diameter needle-electrodes on 1 mm × 1 mm block modules.




The individual microneedles are fabricated on the block modules, which are small enough to use in the narrow spaces present in brain tissue; as demonstrated in the recording using mouse cerebrum cortices. In addition, the block module remarkably improves the design variability in the packaging, offering numerous in vivo recording applications.




“We demonstrated the high design variability in the packaging of our electrode device, and in vivo neuronal recordings were performed by simply placing the device on a mouse’s brain. We were very surprised that high quality signals of a single unit were stably recorded over a long period using the 5-μm-diameter needle,” explained the first author, Assistant Professor Hirohito Sawahata, and co-author, researcher Shota Yamagiwa.




The leader of the research team, Associate Professor Takeshi Kawano said: “Our silicon needle technology offers low invasive neuronal recordings and provides novel methodologies for electrophysiology; therefore, it has the potential to enhance experimental neuroscience.” He added, “We expect the development of applications to solve the mysteries of the brain and the development of brain–machine interfaces.” 




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Teslaphoretic Self-assembled LED Circuit

Nanotube interconnects harvest power from the field

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Nano trinity. 

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No, this isn’t the start of a sci-fi horror film… it’s just awesome science. 

In a basement laboratory at the University of Pennsylvania, two robotocists have harnessed the sensing, swimming, and swarming abilities of bacteria to power microscopic robots. Even though their work sounds like the prologue to a dark science fiction film, Ph.D. students Elizabeth Beattie and Denise Wong hope these initial experiments with nano bio-robots will provide a platform for future medical and micro-engineering endeavors.

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youtube
World’s Smallest Nanomotor Spins as Fast as a Jet Engine

Researchers in Texas have created the nano-version of the Energizer Bunny. Their new nanomotor rotates at 18,000 RPMs for a whopping 15 hours. Previous nanomotors rotated far more slowly and sputtered out after a few minutes.




The tiny technology, also known as "Ultrahigh-Speed Rotating Nanoelectromechanical System (NEMS)” is a potential breakthrough for treating all kinds of human ailments including, you guessed it, cancer. Built by a team at Cockrell School of Engineering at The University of Texas at Austin and led by Dr. Donglei (Emma) Fan, the motor is actually a collection of nano-entities, including a nanowire and patterned nano magnets.“

Learn more at mashable.

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Morgan Spurlock: Inside Man - Futurism

Morgan Spurlock enters the brave new world of extreme life extension, embarking on a life-prolonging regimen and trying everything from genome hacking, to creating an avatar and uploading his consciousness in preparation for the “Technological Singularity.” Spurlock’s quest to live forever includes visits with radical futurist Ray Kurzweil, Stanford University’s Virtual Human Interaction Lab, and Cambrian Genomics in San Francisco. April 20, 2014

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How Small Is Nano? - NISEnet

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Ray Kurzweil On Immortality

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vimeo

Francesca Rosella of interactive fashion brand CuteCircuit claims advances in digital “smart” fabrics will revolutionise the fashion industry, allowing us to download new styles for our clothes rather than buying new garments.

“We are living in a digital future, so we do not need to sell 10,000 skirts,” says Rosella. “We could sell 500 skirts, but then could sell thousands of patterns that you download to your skirt.”

By embedding nanotechnology into fabrics, we can create “smart textiles” that are conductive, or even computational, Rosella explains.

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NANOTECHNOLOGY - Nanoparticles Detect Cancer in Living Organisms

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(Smithsonian)  Forget the 3D Printer: 4D Printing Could Change Everything

These days, 3D printing seems to be at the core of most new new research ventures, whether it’s developing ways to print entire meals or recreating facial features to repair a patient’s face.

But Skylar Tibbits wants to up the ante: He’s hoping 4D printing will be the thing of the not-so-far future.




The name for his concept, Tibbits admits, was a bit lighthearted at first. At the Massachusetts Institute of Technology, Tibbits and researchers from the firms Stratasys and Autodesk Inc were trying to come up with a way of describing the objects they were creating on 3D printers—objects that not only could be printed, but thanks to geometric code, could also later change shape and transform on their own.




The name stuck, and now the process they developed—which turns code into “smart objects” that can self-assemble or change shape when confronted with a change in its environment—could very well pop up in a number of industries, from construction to athletic wear.

(more…)

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An interview with Eric Drexler on the Future of Nanotechnology

“When I describe these technologies it’s not because I think it leads to utopia, it’s because it is where we are going. It’s not optimism and hope, it’s not pessimism and fear; Here is the nature of the world, here is the sweep of technology.”

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Building Gods Documentary - Transhumanism, 


Artificial intelligence and nanotechnology

This film by Ken Gumbs tackles the issue of pending greater-than-human artificial intelligence and the possible ramifications. Different individuals with different backgrounds are interviewed on the subject, including a theologian, a philosopher, a brain builder and a cyborg. A wide spectrum of topics are discussed, including trans-humanism, mind-machine mergers, uploading, and artificial super-intelligence.

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That’s about it for Nanotechnology. Try another search?


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Nature Is Smarter Than Us
Nature is pretty damn smart. In fact, many modern technologies get their ideas from nature. Trace explores the awesome field of biomimicry. DNews is a show about the science of everyday life. We post new videos three times a day, every weekday.
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Scientists just created a tiny robot made of metal and rubber but powered by rat heart muscle cells! How do biological hybrid machines work? Nature Is Smarter Than Us - https://youtu.be/4vq8ci4RTUs 



Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1PxI Read More: Animal Propulsion 


Study Reveals How Jellyfish & Other Species Bend The Rules Of Motion http://www.huffingtonpost.com/2014/02... "But are jellyfish the only animals to have discovered the magic of bendiness? A new study examined the propulsive limbs of 59 animal species, from the flukes of killer whales and the wings of moths and bats to the winglike feet of sea slugs. Not only is bendiness ubiquitous, but it is finely tuned.


" Robotic stingray powered by light-activated muscle cells http://www.sciencemag.org/news/2016/0... "Kevin Kit Parker wants to build a human heart. His young daughter loves the New England Aquarium in Boston. In this Science report, father's and daughter's obsessions have combined in an unlikely creation: a nickel-sized artificial stingray whose swimming is guided by light and powered by rat heart muscle cells.


" A tissue-engineered jellyfish with biomimetic propulsion. https://www.ncbi.nlm.nih.gov/pubmed/2... "Here we combined these capabilities in a systematic design strategy to reverse engineer a muscular pump. We report the construction of a freely swimming jellyfish from chemically dissociated rat tissue and silicone polymer as a proof of concept." 



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