Showing posts with label nanotechnology. Show all posts
Showing posts with label nanotechnology. Show all posts

2013-05-07

In Vivo Flexible Large Scale Integrated Circuits

Team develops in vivo flexible large scale integrated circuits (w/ Video)


A team led by Professor Keon Jae Lee from the Department of Materials Science and Engineering at KAIST has developed in vivo silicon-based flexible large scale integrated circuits (LSI) for bio-medical wireless communication.

Read more at: http://phys.org/news/2013-05-team-vivo-flexible-large-scale.html#jCp
A team led by Professor Keon Jae Lee from the Department of Materials Science and Engineering at KAIST has developed in vivo silicon-based flexible large scale integrated circuits (LSI) for bio-medical wireless communication.

Read more at: http://phys.org/news/2013-05-team-vivo-flexible-large-scale.html#jCp
A team led by Professor Keon Jae Lee from the Department of Materials Science and Engineering at KAIST has developed in vivo silicon-based flexible large scale integrated circuits (LSI) for bio-medical wireless communication.

Read more at: http://phys.org/news/2013-05-team-vivo-flexible-large-scale.html#jCp
A team led by Professor Keon Jae Lee from the Department of Materials Science and Engineering at KAIST has developed in vivo silicon-based flexible large scale integrated circuits (LSI) for bio-medical wireless communication.

Read more at: http://phys.org/news/2013-05-team-vivo-flexible-large-scale.html#jCp
A team led by Professor Keon Jae Lee from the Department of Materials Science and Engineering at KAIST has developed in vivo silicon-based flexible large scale integrated circuits (LSI) for bio-medical wireless communication.

A KAIST Research Team Developed in Vivo Flexible Large Scale Integrated Circuits - Technobahn

Professor Keon Jae Lee's team fabricated radio frequency integrated circuits (RFICs) interconnected with thousand nano-transistors on silicon wafer by state-of-the-art CMOS process, and then they removed the entire bottom substrate except top 100 nm active circuit layer by wet chemical etching. The flexible RF switches for wireless communication were monolithically encapsulated with biocompatible liquid crystal polymers (LCPs) for in vivo bio-medical applications. Finally, they implanted the LCP encapsulated RFICs into live rats to demonstrate the stable operation of flexible devices under in vivo circumstances.

Professor Lee said, "This work could provide an approach to flexible LSI for an ideal artificial retina system and other bio-medical devices. Moreover, the result represents an exciting technology with the strong potential to realize fully flexible consumer electronics such as application processor (AP) for mobile operating system, high-capacity memory, and wireless communication in the near future."



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2012-08-26

Wood Pulp, World's New Wonder Material

Why wood pulp is world's new wonder material - tech - 23 August 2012 - New Scientist

Nanocrystalline cellulose (NCC), which is produced by processing wood pulp, is being hailed as the latest wonder material. Japan-based Pioneer Electronics is applying it to the next generation of flexible electronic displays. IBM is using it to create components for computers. Even the US army is getting in on the act, using it to make lightweight body armour and ballistic glass.

[...]

So why all the fuss? Well, not only is NCC transparent but it is made from a tightly packed array of needle-like crystals which have a strength-to-weight ratio that is eight times better than stainless steel. Even better, it's incredibly cheap.



Nanocellulose: A cheap, conductive, stronger-than-Kevlar wonder material made from wood pulp | ExtremeTech

What’s brown and sticky, lightweight, flexible, stronger than steel, stiffer than Kevlar, and conducts electricity? Nanocellulose. Oh, isn’t actually brown and sticky either: it’s transparent.

Nanocellulose is a new wonder material that is simply plant matter that has been carefully smashed to pieces, and then reformed into neatly-woven nanoscale crystals and fibers. You generally start with wood pulp, remove any non-cellulose impurities (such as lignin) using a homogenizer, and then gently beat the mixture to separate each of the cellulose fibers. Depending on the exact process used, these fibers then form into a thick paste (pictured above) of needle-like crystals (2nm wide, hundreds of nanometers long, below left), or a spaghetti-like structure of cellulose fibrils (below right).



Nanocellulose - Wikipedia, the free encyclopedia

Nanocellulose or microfibrillated cellulose (MFC), is a material composed of nanosized cellulose fibrils with a high aspect ratio (length to width ratio). Typical lateral dimensions are 5–20 nanometers and longitudinal dimension is in a wide range from 10s of nanometers to several microns. It is pseudo-plastic. Moreover, nanocellulose exhibits the property of certain gels or fluids that are thick (viscous) under normal conditions, but flow (become thin, less viscous) over time when shaken, agitated, or otherwise stressed. This property is known as thixotropy. When the shearing forces are removed the gel regains much of its original state. The fibrils are isolated from any cellulose containing source including wood-based fibers (pulp fibers) through high-pressure, high temperature and high velocity impact homogenization (see manufacture below). Nanocellulose can also be obtained from native fibers by an acid hydrolysis, giving rise to highly crystalline and rigid nanoparticles (generally referred to as nanowhiskers) which are shorter (100s to 1000 nanometers) than the nanofibrils obtained through the homogenization route.


Forest Products Laboratory - USDA Forest Service

Nanotechnology

A leader in wood products research for over a century, the FPL is positioning itself to become the lead Federal research facility for the application of nanotechnology in forest products. Using structural, chemical, and mechanical evaluation techniques, interdisciplinary teams of scientists continue to expand FPL's nanotechnology research program.



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2012-07-20

Puralytics SolarBag 3L -- Reusable Sunlight Activated Water Purifier

Puralytic Solar Bag | The Filtered Files

Puralytics, a privately funded technology company located in Beaverton, Oregon is pioneering a new photochemical technology for water purification. They are building solutions to improve filtration for the global water challenges by combining the latest technological innovations with advanced engineering. The invention of the Solar Bag uses an effective and simple process for water purification.
The Puralytic Solar Bag has a backpack with handles that makes it easy to transport water to and from an available water source. Once the bag is filled with any water through the inlet debris filter, the bag is placed in the direct sunlight. It can either lie flat or hung from a tree or post. Once purified, the Solar Bag can be dispensed by a valve into a canteen or pot as required. By harnessing the power of the sun to purify water, the Puralytics Solar Bag will deliver clean drinking water that meets the World Health Organization (WHO) standards in remote areas.

Bag versus bottle? Puralytics’ new approach to pure portable water | SmartPlanet


It takes about three hours for the SolarBag to produce 3 liters of fresh water in direct sunlight (four to six hours if it is cloudy). It can be used several times per day, and Puralytics said the bag can be reused hundreds of times before it needs to be replaced.

The SolarBag exceeds U.S. Environmental Protection Agency guidelines for water purifiers, according to Puralytics. “The versatility and performance of the SolarBag makes it the best water purifier on the market for remote and emergency applications,” said Mark Owen, found and CEO of Puralytics. “It’s light, simple to use, easily transportable and reliable.”


Puralytics :: Pure Water




The Details

Sunlight, even on a cloudy day, activates our new, powerful purification capability, embedded in our nanotechnology coated mesh insert. This activates the 5 photochemical processes that purify water and reduce or destroy contaminants found in virtually all water sources.

Treats up to 9 liters of water per day. Reusable hundreds of times.


Easy to Use

Fill bag with water from any fresh water source using supplied cloth filter.

Place the SolarBag in an area open to the sky. Wait 2 - 3 hours on a sunny day, or 4 - 6 hours on a cloudy day or if the source water is tea-colored.

Enjoy your safe, purified water! Again, and again, and again...


TEDx The Future of Water - YouTube

In "The Future of Water" a TEDx talk presented at Oregon State University on April 17, 2012, Puralytics CEO Mark Owen presents the water crisis, defines that the conventional solution to this crisis - municipal water purification - does not and can not supply SAFE water to the world's people, and calls for the development of a new breed of intelligent, decentralized water systems using new technologies.




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2012-05-15

Virus-based Piezoelectric Energy Generation


Update 2012-08-14

Piezoelectric virus M13 bacteriophage could power your mobile phone | Mail Online

  • Virus can turn movement into electricity
  • Could one day power your mobile phone or a pacemaker as you walk

A team at the University of California, Berkeley has discovered how to generate electricity from a virus known as M13 bacteriophage.

The virus possesses a property known as piezoelectricity, which means it can translate mechanical energy into electrical energy.

The researchers believe the discovery could one day pave the way for mobile phones that can be charged while you walk and replace the toxic piezoelectric elements already used in mobile phones.

The team found the virus could provide 25% of the power produced by a AAA battery

Generating electricity from viruses as you walk | KurzweilAI

Scientists from the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) have developed a way to generate power using harmless viruses that convert mechanical energy into electricity.

The generator produces enough current to operate a small liquid-crystal display. It works by tapping a finger on a postage stamp-sized electrode coated with specially engineered viruses. The viruses convert the force of the tap into an electric charge.


Berkeley Lab Scientists Generate Electricity From Viruses « Berkeley Lab News Center

The scientists tested their approach by creating a generator that produces enough current to operate a small liquid-crystal display. It works by tapping a finger on a postage stamp-sized electrode coated with specially engineered viruses. The viruses convert the force of the tap into an electric charge.

Their generator is the first to produce electricity by harnessing the piezoelectric properties of a biological material. Piezoelectricity is the accumulation of a charge in a solid in response to mechanical stress.


The first part of the video shows how Berkeley Lab scientists harness the piezoelectric properties of a virus to convert the force of a finger tap into electricity. The second part shows the “viral-electric” generators in action, first by pressing only one of the generators, then by pressing two at the same time, which produces more current.
[...]
When pressure is applied to the generator, it produces up to six nanoamperes of current and 400 millivolts of potential. That’s enough current to flash the number “1” on the display, and about a quarter the voltage of a triple A battery.

“We’re now working on ways to improve on this proof-of-principle demonstration,” says Lee. “Because the tools of biotechnology enable large-scale production of genetically modified viruses, piezoelectric materials based on viruses could offer a simple route to novel microelectronics in the future.”


Virus-based piezoelectric energy generation : Nature Nanotechnology : Nature Publishing Group



a, The M13 phage [...]  b, Side view of the electrostatic potential of M13 phage [...]  c, Vertical cross-sectional view of the electrostatic potential of M13 phage.[...]  d, Side-view representation of the electrostatic potential of a single M13-phage [...]





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2012-02-27

Heated Fabric Using Carbon Nanotube Coated Fibers

Carbon Nanotube Coated Fibers Could One Day Lead To Self-Heating Clothing

Working with Hokkaido University, Kuraray Living has created a soft washable fabric woven with carbon nanotube coated fibers that produces heat when electricity is applied. So when it's perfected, your electric blanket could get a lot less bulky. The material has been in development since 2007, but recent advancements in carbon nanotube technology have given its creators hope that it could be used in commercial products as early as 2013.




Nano Patents and Innovations: Full-Face Heating CNTEC Fabric Heater Coated with Carbon Nanotubes Unveiled by Japanese Trio

Full-Face Heating CNTEC Fabric Heater
Image Credit:  Chakyu Dyeing Co., Ltd. / Kurarayliving Co., Ltd. / Matsubun Textile Co., Ltd


Bunshi FUGETSU | CRIS -Creative Reserch Institution- Hokkaido University

Thanks to a new dispersion technology using a zwitterionic surfactant (a special type of dispersant solution in which a single molecule can have both positive and negative electrical charges simultaneously) developed and patented by us at Hokkaido University, it is now possible to achieve non-destructive dispersion of CNT agglomerates into individual tubes(Fig. 1).

[...]
During January to middle of March in 2009, the conductive fabric/heater system was installed in the water storage tank of JR Hokkaido's "Ryuhyo-Norokko" train that runs between Shiretoko-Shari and Awashiri. According to JR Hokkaido railway company, the fabric heater shows good performance in preventing the water from freezing in wintertime, when the temperature inside this train drops to around -20°C (Fig. 4)


　　Here is one more example. A CNTs-based road heating system has been in use in Sapporo Campus at the sidewalk near the main entrance of Hokkaido University. A CNT-coated heat-generating yarn tucked, with the help of a rubber mat, under the interlocked base material serves as the source of heat for snow-melting (Fig. 5).



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2011-11-17

Ultrafast Nanoscale LED Data Transmission Developed at Stanford

New lightning-fast, efficient nanoscale data transmission developed at Stanford | Stanford Engineering


A team at Stanford's School of Engineering has demonstrated an ultrafast nanoscale light-emitting diode (LED) that is orders of magnitude lower in power consumption than today's laser-based systems and is able to transmit data at the very rapid rate of 10 billion bits per second. The researchers say it is a major step forward in providing a practical ultrafast, low-power light source for on-chip data transmission.

Stanford's Jelena Vuckovic, an associate professor of electrical engineering, and Gary Shambat, a doctoral candidate in electrical engineering, announced their device in a research paper set to be published Tuesday in the journal Nature Communications.

Tests show that the device, technically called "nanoscale single-mode LED," can transmit information in computers from chip to chip at least 10 times the speed of any current computer while consuming more than a 1,000 times less energy, the developers say.

The tiny device is a highly advanced version of the LED lamps that are increasingly used in everything from pocket flashlights and home lighting to the "grow-lights" that force-feed everything from house plants to marijuana farms.

Engineers use nanophotonics to reshape on-chip computer data transmission

This illustration shows how a single nanophotonic single-mode LED is constructed. (Image: Gary Shambat, Stanford School of Engineering)

The LED in question is a "single-mode LED," a special type of diode that emits light more or less at a single wavelength, very similar to a laser. 
"Traditionally, engineers have thought only lasers can communicate at high data rates and ultralow power," said Shambat. "Our nanophotonic, single-mode LED can perform all the same tasks as lasers, but at much lower power."

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2011-02-06

Hard-tip, Soft-spring Lithography (HSL)

New way of printing nanostructures makes desktop fabrication disposable - SmartPlanet



Researchers have figured out how to make designer nanostructures using arrays of silicon pens to create tiny patterns in biological and electronic materials. This is good news for researchers at least, as the method could make it cheaper to produce computer chips and gene chips for testing purposes, reports Technology Review.

[...]

The technique is called hard-tip, soft-spring lithography (HSL). The technique basically uses hard pen tips that float on soft polymer springs. It’s different than the commonly used method called dip-pen lithography because HSL uses a hard tip instead of a soft pen tip.

The hard tip helps researchers make patterns with greater resolution. The print heads can be thrown away, giving this nanoprinting a disposable dimension to it.


Nanolithography - Wikipedia, the free encyclopedia

Nanolithography is the branch of nanotechnology concerned with the study and application of fabricating nanometer-scale structures, meaning patterns with at least one lateral dimension between the size of an individual atom and approximately 100 nm. Nanolithography is used during the fabrication of leading-edge semiconductor integrated circuits (nanocircuitry) or nanoelectromechanical systems (NEMS).


Scanning probe lithography - Wikipedia, the free encyclopedia

Scanning probe lithography describe a set of lithographic methods, in which a microscopic or nanoscopic stylus is moved mechanically across a surface to form a pattern.



Polymer Pen Lithography uses arrays of tiny pens made of polymers to print over large areas with nanoscopic through macroscopic resolution. By simply changing contact pressure (and the amount the pens deform), as well as the time of delivery, dots of various diameters can be produced. (The pen tips snap back to their original shape when the pressure is removed.)


McCormick News Article

Method Prints Nanostructures Using Hard “Pen” Tips Floating on Soft Polymer Springs

Jan 26, 2011 12:00 PM

Northwestern University researchers have developed a new technique for rapidly prototyping nanoscale devices and structures that is so inexpensive the “print head” can be thrown away when done.

Hard-tip, soft-spring lithography (HSL) rolls into one method the best of scanning-probe lithography -- high resolution -- and the best of polymer pen lithography -- low cost and easy implementation.

HSL could be used in the areas of electronics (electronic circuits), medical diagnostics (gene chips and arrays of biomolecules) and pharmaceuticals (arrays for screening drug candidates), among others.

To demonstrate the method’s capabilities, the researchers duplicated the pyramid on the U.S. one-dollar bill and the surrounding words approximately 19,000 times at 855 million dots per square inch. Each image consists of 6,982 dots. (They reproduced a bitmap representation of the pyramid, including the “Eye of Providence.”) This exercise highlights the sub-50-nanometer resolution and the scalability of the method.

The results will be published Jan. 27 by the journal Nature.
[...]

Nature | Letter

Hard-tip, soft-spring lithography


Wooyoung Shim, Adam B. Braunschweig, Xing Liao, Jinan Chai, Jong Kuk Lim, Gengfeng Zheng & Chad A. Mirkin

Nature 469,516–520 (27 January 2011) DOI: doi:10.1038/nature09697

[...] Here we describe a low-cost and scalable cantilever-free tip-based nanopatterning method that uses an array of hard silicon tips mounted onto an elastomeric backing. This method—which we term hard-tip, soft-spring lithography—overcomes the throughput problems of cantilever-based scanning probe systems and the resolution limits imposed by the use of elastomeric stamps and tips: it is capable of delivering materials or energy to a surface to create arbitrary patterns of features with sub-50-nm resolution over centimetre-scale areas. We argue that hard-tip, soft-spring lithography is a versatile nanolithography strategy that should be widely adopted by academic and industrial researchers for rapid prototyping applications.



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2011-01-23

Killer Paper: Nano-coated Food Packaging

'Killer paper' could prolong shelf life of foods


Silver is a known killer of harmful bacteria, and has already been incorporated into things such as antibacterial keyboards, washing machines, water filters, and plastic coatings for medical devices. Now, scientists have added another potential product to the list: silver nanoparticle-impregnated “killer paper" packaging, that could help keep food from spoiling.

Led by Aharon Gedanken from Israel’s Bar-Ilan University, the team discovered that paper could be covered with silver nanoparticles through the application of ultrasonic radiation – a process known as ultrasonication. It involves the formation and subsequent collapse of acoustic bubbles near a solid surface, which creates microjets that throw the desired nanoparticles onto that surface. To the team’s knowledge, this was only the second time that ultrasonication had ever been attempted on paper.





Killer paper for next-generation food packaging


Foods could get a longer shelf life using “killer
paper,” a new packaging material made of anti-
bacterial nanoparticles.

Scientists are reporting development and successful lab tests of “killer paper,” a material intended for use as a new food packaging material that helps preserve foods by fighting the bacteria that cause spoilage. The paper, described in ACS’ journal, Langmuir, contains a coating of silver nanoparticles, which are powerful anti-bacterial agents.
[...]
The scientists describe development of an effective, long-lasting method for depositing silver nanoparticles on the surface of paper that involves ultrasound, or the use of high frequency sound waves. The coated paper showed potent antibacterial activity against E. coli and S. aureus, two causes of bacterial food poisoning, killing all of the bacteria in just three hours. This suggests its potential application as a food packaging material for promoting longer shelf life, they note.


Langmuir

Sonochemical Coating of Paper by Microbiocidal Silver Nanoparticles

Ronen Gottesman, Sourabh Shukla, Nina Perkas, Leonid A. Solovyov, Yeshayahu Nitzan, and Aharon Gedanken

Langmuir, 2011, 27 (2), pp 720–726
DOI: 10.1021/la103401z



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2010-09-13

Artificial Skin Materials with a Sense of Touch

Technology Review - Published By MIT

Electric Skin that Rivals the Real Thing


The tactile sensitivity of human skin is hard to re-create, especially over large, flexible surfaces. But two California research groups have made pressure-sensing devices that significantly advance the state of the art.

 One, made by researchers at Stanford University, is based on organic electronics and is 1,000 times more sensitive than human skin. The second, made by researchers at the University of California, Berkeley, uses integrated arrays of nanowire transistors and requires very little power. Both devices are flexible and can be printed over large areas; they are described this week in separate papers in the journal Nature Materials.

Stanford researchers' new high-sensitivity electronic skin can feel a butterfly's footsteps

Stanford researchers have developed an ultrasensitive, highly flexible, electronic sensor that can feel a touch as light as an alighting fly.  Manufactured in large sheets, the sensors could be used in artificial electronic skin for prosthetic limbs, robots, touch-screen displays, automobile safety and a range of medical applications.
By sandwiching a precisely molded, highly elastic rubber layer between two parallel electrodes, the team created an electronic sensor that can detect the slightest touch.

"It detects pressures well below the pressure exerted by a 20 milligram bluebottle fly carcass we experimented with, and does so with unprecedented speed," said Zhenan Bao, an associate professor of chemical engineering who led the research.
The key innovation in the new sensor is the use of a thin film of rubber molded into a grid of tiny pyramids, Bao said. She is the senior author of a paper published Sept.  12 online by Nature Materials.
The sensor is sensitive enough to detect this horinea faunus butterfly placed on it.



Engineers make artificial skin out of nanowires

BERKELEY — Engineers at UC Berkeley have developed a pressure-sensitive electronic material from semiconductor nanowires that could one day give new meaning to the term "thin-skinned."

"The idea is to have a material that functions like the human skin, which means incorporating the ability to feel and touch objects," said Ali Javey, associate professor of electrical engineering and computer sciences and head of the UC Berkeley research team developing the artificial skin.

The artificial skin, dubbed "e-skin" by the UC Berkeley researchers, is described in a Sept. 12 paper in the advanced online publication of the journal Nature Materials. It is the first such material made out of inorganic single crystalline semiconductors.

A touch-sensitive artificial skin would help overcome a key challenge in robotics: adapting the amount of force needed to hold and manipulate a wide range of objects.

"Humans generally know how to hold a fragile egg without breaking it," said Javey, who is also a member of the Berkeley Sensor and Actuator Center and a faculty scientist at the Lawrence Berkeley National Laboratory Materials Sciences Division. "If we ever wanted a robot that could unload the dishes, for instance, we’d want to make sure it doesn’t break the wine glasses in the process. But we’d also want the robot to be able to grip a stock pot without dropping it."

An artist’s illustration of an artificial e-skin with nanowire active matrix circuitry covering a hand. The fragile egg illustrates the functionality of the e-skin device for prosthetic and robotic applications.


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2010-03-11

Plastic with High Thermal Conductivity

Clipped from: New Plastic Conducts Heat Better Than Metals, But Only in One Direction | Popular Science

New Plastic Conducts Heat Better Than Metals, But Only in One Direction

Polyethylene Chains of polyethylene molecules like the one above tend to arrange themselves chaotically, but by figuring out how to make the molecules line up straight, MIT researchers have created a highly conductive new polymer that conducts heat in only one direction.


Clipped from: MIT NanoEngineering Group

NANO   ::   HEAT   ::   ENERGY

 
The Nanoengineering Group is part of the Mechanical Engineering Department at MIT. Our research is focused on nanoscale energy transport, conversion, and storage. There are fundamental differences between transport processes at the nanoscale and the macroscale due to quantum and classical size effects; for example, both classical diffusion laws and Planck's law for blackbody radiation break down in nanostructures.


Clipped from: NanoEngineering: News

MIT News: Insulators made into conductors

Sheng Shen, Asegun Henry, Jonathan Tong, Ruiting Zheng, and Professor Gang Chen have shown that polymers can be as good conductors as many metals. Their letter, published March 7 in Nature Nanotechnology, describes how drawing polymer fibers causes molecular chain alignment. This alignment leads to the anisotropically high thermal conductivity while maintaining low electrical conductivity. Materials with such properties could be used to solve many thermal management problems. Read the full article in MIT News.


Clipped from: Insulators made into conductors
 

The new method involves pulling a thin thread of material (top) from a liquid solution (bottom), and in the process the individual polymer filaments, which start out as a tangled mass, become very highly aligned.

At top, an illustration of the tangled nature of the polymer filaments, with heat-stopping voids indicated as dark blobs. When drawn and heated into a thin thread (bottom), the molecules line up and the voids are compressed, making the material a good conductor.

Clipped from: MIT MechE - Gang Chen

Gang Chen

Carl Richard Soderberg Professor of Power Engineering
Director, Pappalardo Micro and Nano Engineering Laboratories
Director, DOE EFRC: Solid-State Solar-Thermal Energy Conversion Center (S3TEC Center)
 

Sources:
  1. New Plastic Conducts Heat Better Than Metals, But Only in One Direction | Popular Science
  2. MIT NanoEngineering Group
  3. NanoEngineering: News
  4. Insulators made into conductors
  5. MIT MechE - Gang Chen
Related:
  1. Polyethylene nanofibres with very high thermal conductivities : Abstract : Nature Nanotechnology
  2. Insulators made into conductors: Polymers coaxed to line up, transformed into materials that could dissipate heat
  3. Heat-conducting plastic has big implications for electronics
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2010-02-15

RTI's Energy-Efficient Nanofiber-Based Lighting Technology

Clipped from: Energy-efficient lighting made without mercury


Energy-Efficient Lighting Made Without Mercury

ScienceDaily (Feb. 11, 2010) — RTI International has developed a revolutionary lighting technology that is more energy efficient than the common incandescent light bulb and does not contain mercury, making it environmentally safer than the compact fluorescent light (CFL) bulb.


 At the core of RTI's breakthrough is an advanced nanofiber structure that provides exceptional lighting management. Nanofibers are materials with diameters and surface features much smaller than the human hair but with comparable lengths.


Clipped from: RTI International Develops Technology to Make Energy-Efficient Lighting


RTI International - News Release - 2.8.2010

RTI International Develops Technology to Make Energy-Efficient Lighting

[...]
"By using flexible photoluminescent nanofiber technologies for light management, RTI has opened the door to the creation of new designs for solid-state lighting applications," says Lynn Davis, Ph.D., director of RTI's Nanoscale Materials Program. "This new class of materials can provide cost-effective, safe and efficient lighting solutions."

Additionally, RTI's technology produces an aesthetically pleasing light with better color rendering properties than is typically found in CFLs. The technology has demonstrated color rendering indices in excess of 90 for warm white, neutral white, and cool white illumination sources.




Sources:
  1. Energy-efficient lighting made without mercury
  2. RTI International Develops Technology to Make Energy-Efficient Lighting
  3. YouTube - RTI Develops Technology to Make Energy-Efficient Lighting
Related:
  1. RTI International - Scientific Research Development Institute - Scientific Technologies
  2. Photoluminescent Nanofibers for Solid-State Lighting Applications (pdf)
  3. Nanofiber Lamps Are More Efficient Than Incandescent Bulbs, Eco-FriendlierThan Fluorescent | Popular Science
  4. Researchers Develop Nanofiber-Based Technology to Make Energy-Efficient Lighting
  5. Nanofiber Bulbs are Efficient, Environmentally Sound | Inhabitat
  6. Nanofiber-Based Lighting Technology Provides High-Efficiency, Environmentally Friendly Lighting | NDN
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