- RSS Channel Showcase 7875969
- RSS Channel Showcase 4107683
- RSS Channel Showcase 7166563
- RSS Channel Showcase 6155986
Articles on this Page
- 09/12/08--10:45: _Anthony Andrady
- 09/12/08--10:57: _BioMimic Fabricatio...
- 09/15/08--14:16: _Li Han
- 09/30/08--10:54: _Carl Saquing
- 01/05/09--09:50: _Nanofibers
- 01/07/09--12:19: _Controlled Nanomanu...
- 02/10/09--08:54: _Fred Lybrand
- 02/10/09--09:16: _Elmarco, Inc. and E...
- 04/21/10--10:03: _Finetex EnE Canada Inc
- 06/03/11--08:02: _FibeRio Technology
- 08/10/11--12:24: _New Technique Scale...
- 06/14/13--07:54: _Ramani Dhandapani
- 08/23/13--07:09: _Donaldson Company, ...
- 10/07/13--13:43: _4SPIN
- 02/06/14--13:06: _Nanotechnology is G...
- 03/05/14--08:50: _Elmarco Enabled Ind...
- 02/26/15--10:55: _New Paper-like Mate...
- 03/27/15--12:03: _Alan G. MacDiarmid ...
- 06/17/16--07:49: _New Nanomaterial Of...
- 06/27/17--10:19: _Nanopareil, LLC
- 09/12/08--10:45: Anthony Andrady
- 09/12/08--10:57: BioMimic Fabrication of Electrospun Nanofibers with High-throughput
- 09/15/08--14:16: Li Han
- 09/30/08--10:54: Carl Saquing
- 01/05/09--09:50: Nanofibers
- 01/07/09--12:19: Controlled Nanomanufacturing of Magnetic Composite Nanofibers
- 02/10/09--08:54: Fred Lybrand
- 02/10/09--09:16: Elmarco, Inc. and Elmarco s r o
- 04/21/10--10:03: Finetex EnE Canada Inc
- 06/03/11--08:02: FibeRio Technology
- 08/10/11--12:24: New Technique Scales Up Nanofiber Production
- 06/14/13--07:54: Ramani Dhandapani
- 08/23/13--07:09: Donaldson Company, Inc.
- 10/07/13--13:43: 4SPIN
- 02/06/14--13:06: Nanotechnology is Getting Closer to 3D Nanoprinting
- 02/26/15--10:55: New Paper-like Material Could Boost Electric Vehicle Batteries
- 03/27/15--12:03: Alan G. MacDiarmid NanoTech Institute
- 06/27/17--10:19: Nanopareil, LLC
Dr. Andrady is a Senior Research Scientist at the Engineering Technology Division of RTI International. He has a doctoral degree from the University of North London (England) and is an adjunct Professor in Chemical Engineering at the North Carolina State University. Dr. Andrady specializes in the fabrication and characterization of nanomaterials, especially nanoscale fibers. He recently reviewed the latter area in a book entitled "Science and Technology of Polymer Nanofibers" (John Wiley & Sons). He has published over 100 papers, including chapters as well as an edited book, on various aspects of polymer research.
|He et al., reported on a novel means to reduce surface tension by electrospinning from the wall of a bubble as opposed to a droplet.|
Dr. Li Han has more than 8 years of research experience in nanotechnology. She has 30 publications and 3 book chapters on nanotechnology and holds 2 U.S. patents, 3 patent applications and several invention disclosures on fabrication of nanoparticles, electrospun nanofibers and their applications. Dr. Han recently coauthored three publications on constructing cell scaffolding material using electrospun nanofibers. She also served as the PI on three IR&D projects on electrospin nanofiber applications and as a major team member on several projects funded by government agencies. Her present research interests include fabrication of novel nanoscale materials, developing novel microscopic and spectroscopic characterization techniques for nanoparticles and nanofibers and explore research on the application of nanoscale materials in chemo- and biosensors, catalysis and biomedical devices.
Dr. Carl D. Saquing received his BS degree in Chemical Engineering from the University of the Philippines Los Baños. He obtained his Master’s degree in Chemical Engineering from the University of New South Wales, Sydney, Australia through an Australian for International Development scholarship in 1998, studying the behavior of isomeric model drug molecules in supercritical CO2 and cosolvent systems. He went on to finish his PhD in Chemical Engineering at the University of Connecticut in 2004 working on incorporating nanostructures into nanoporous matrices as well as producing polymer/drug microspheres using supercritical fluids. Currently, he is a postdoctoral research associate at the Department of Chemical and Biomolecular Engineering with Prof. Saad Khan and is involved with the synthesis and characterization of functional nanofibers (metal nanoparticle/nanofiber and drug/nanofiber composites, porous, inorganic, etc) using various electrospinning based methodologies with the end in view of applications to biomedicine, catalysis and sensing.
Written by Fred Lybrand, Elmarco, Inc.
Informal nonwovens, textile, and other engineered fibers industries will often accept the term nanofibers to describe fibers with any diameter size smaller than 1,000 nm or 1 µm.
|Santala, et.al., report a versatile method for preparing magnetic and photocatalytic nanofibers by combining electrospinning and atomic layer deposition (ALD) to control both the materials composition of the nanofiber and the specific structure and dimensions of the resulting fibers.|
Mr. Lybrand is the VP for Elmarco's North American operations. Elmarco makes production and lab equipment for the industrial application of nanofibers which uses our proprietary Nanospider(TM) process. Nanospider(TM) is a high-voltage electrospinning process that does not use needles. Elmarco is the first company to produce industrial scale equipment for the production of nanofibers.
Elmarco is the industry’s first supplier of industrial scale nanofiber production equipment. Our partnerships with global industrial leaders and universities form the foundation for our success.
Elmarco’s Nanospider™ technology allows nanofibers to be produced on an industrial scale for a number of applications. Supported by a broad patent suite, Nanospider™ is a high voltage electro-spinning process that does not use needles.
Finetex Technology specializes in a unique electrospinning process to produce nano-scale fibers and structures that can be manufactured, on a mass scale.
FibeRio Technology Corporations is transforming the materials market through the unlimited availability of nanofibers. By incorporating the proprietary Forcespinning™ technology into equipment and manufacturing processes, the company is:
• Providing researchers with versatile production capabilities that will facilitate ground breaking research.
• Providing the nonwovens industry with dramatically increased system level production capacities that will escalate the commercialization of nanofiber applications.
A new spin on an old technology will give scientists and manufacturers the ability to significantly increase their production of nanofibers, according to researchers at North Carolina State University.
Collections of nanofibers, because they are porous and lightweight, are useful in applications ranging from water filtration to tissue regeneration to energy storage. Although nanofibers are relatively inexpensive to produce, the current method of production – needle electrospinning – is time-intensive.
Manufacturer of Electrospinning Apparatus
Donaldson Company, Inc. is a leading worldwide provider of filtration systems and replacement parts. Since 1915, we have perfected and leveraged our innovative technology, strong customer relationships and broad geographic presence to meet the diverse and changing needs of our customers.
Donaldson creates a broad spectrum of filtration products and services to meet the evolving needs of our diverse customers. These filtration solutions span the entire life cycle of a customer’s application, from initial system design through replacement products.
The Contipro 4SPIN C4S Lab 1 is a desktop laboratory device used in the nanofiber production and the preparation of nanofiber layers from solutions of synthetic and natural polymers. It is a highly modular device composed of specially designed components. Selected process parameters are completely controlled by a central control system with intuitive handling based on a touch screen and multi-function button.
Fabrication of three-dimensional (3D) objects through direct deposition of functional materials – also called additive manufacturing – has been a subject of intense study in the area of macroscale manufacturing for several decades. These 3D printing techniques are reaching a stage where desired products and structures can be made independent of the complexity of their shapes – even bioprinting tissue is now in the realm of the possible.
Elmarco introduces the updated Nanospider™ ("NS") LAB – the first product update to the world’s best selling nanofiber research tool which was originally launched in 2005 at the Nanotech exhibition in Tokyo, Japan. Designed for experimental work on nanofiber material and applications, this new product incorporates years of customer feedback and product support. With a smaller footprint and lower cost, the NS LAB now makes use of the stationary wire electrode first introduced into Elmarco’s industrial lines in 2010.
Researchers create silicon nanofibers 100 times thinner than human hair for potential applications in batteries for electric cars and personal electronics
Researchers at the University of California, Riverside’s Bourns College of Engineering have developed a novel paper-like material for lithium-ion batteries. It has the potential to boost by several times the specific energy, or amount of energy that can be delivered per unit weight of the battery.
This paper-like material is composed of sponge-like silicon nanofibers more than 100 times thinner than human hair. It could be used in batteries for electric vehicles and personal electronics.
The findings were just published in a paper, “Towards Scalable Binderless Electrodes: Carbon Coated Silicon Nanofiber Paper via Mg Reduction of Electrospun SiO2 Nanofibers,” in the journal Nature Scientific Reports. The authors were Mihri Ozkan, a professor of electrical and computer engineering, Cengiz S. Ozkan, a professor of mechanical engineering, and six of their graduate students: Zach Favors, Hamed Hosseini Bay, Zafer Mutlu, Kazi Ahmed, Robert Ionescu and Rachel Ye.
The nanofibers were produced using a technique known as electrospinning, whereby 20,000 to 40,000 volts are applied between a rotating drum and a nozzle, which emits a solution composed mainly of tetraethyl orthosilicate (TEOS), a chemical compound frequently used in the semiconductor industry. The nanofibers are then exposed to magnesium vapor to produce the sponge-like silicon fiber structure.
Conventionally produced lithium-ion battery anodes are made using copper foil coated with a mixture of graphite, a conductive additive, and a polymer binder. But, because the performance of graphite has been nearly tapped out, researchers are experimenting with other materials, such as silicon, which has a specific capacity, or electrical charge per unit weight of the battery, nearly 10 times higher than graphite.
The problem with silicon is that is suffers from significant volume expansion, which can quickly degrade the battery. The silicon nanofiber structure created in the Ozkan’s labs circumvents this issue and allows the battery to be cycled hundreds of times without significant degradation.
“Eliminating the need for metal current collectors and inactive polymer binders while switching to an energy dense material such as silicon will significantly boost the range capabilities of electric vehicles,” Favors said.
This technology also solves a problem that has plagued free-standing, or binderless, electrodes for years: scalability. Free-standing materials grown using chemical vapor deposition, such as carbon nanotubes or silicon nanowires, can only be produced in very small quantities (micrograms). However, Favors was able to produce several grams of silicon nanofibers at a time even at the lab scale.
The researchers’ future work involves implementing the silicon nanofibers into a pouch cell format lithium-ion battery, which is a larger scale battery format that can be used in EVs and portable electronics.
Source: UCR Today
Guided by theory and enabled by synthesis, the Alan G. MacDiarmid NanoTech Institute develops new science and technology exploiting the nanoscale. Its researchers inspire students by creating an atmosphere of excitement, fun, and creativity. We design frontier science and technology by teaming globally, and providing a place where physicists, chemists, biologists, ceramicists, metallurgists, and mathematicians join in teams with engineers to solve problems.
An ultrathin film that is both transparent and highly conductive to electric current has been produced by a cheap and simple method devised by an international team of nanomaterials researchers fro
Nanopareil [nano-puh-rel] produces cutting-edge separation media composed of functionalized nanofibers. The product is manufactured from a randomly overlaid mat of electrospun nanofibers, which provide a unique separation medium capable of both size-based as well as adsorptive separation mechanisms. The highly advanced and proprietary formulation provides the opportunity to greatly enhance process efficiencies and economics in the biopharmaceutical, water treatment, desalination, blood products, and air purification industries.