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Content tagged with: Polymeric
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Plastics Engineering Features Article on Test Equipment for Nanopolymers

Aug. 2010- Plastics Engineering, the magazine of the Society of Plastics Engineers, features an article in their July/August Issue on specialized test equipment for nanomaterials such as nanopolymers and carbon nanotubes. Noting that the demand for processes and equipment that can verify the composition, integrity, and performance of nanomaterials is increasing as marketable applications for nanotechnology ...

Multi-scale Directed Assembly of Polymer Blends Using Chemically Functionalized Nanotemplates

May. 2010- NSF Center for High-rate Nanomanufacturing, Northeastern University, University of Massachusetts Lowell Nanoscale patterned polymeric structures with multiple surface functionalities can be used for the fabrication of microphotonic arrays, biosensors, and semiconductor integrated circuits. The directed assembly of polymer blends into nanoscale structures offers an advantage in that a wide array ...

University of Massachusetts Amherst Experts Review a Probe-Based Approach to Data Storage for Nature Nanotechnology

Nov. 2009- The November issue of Nature Nanotechnology includes a news feature titled “Polymers: Performance Under Pressure” written by two University of Massachusetts Amherst researchers, Thomas P. Russell and Dong Hyun Lee.

Algal Cellulose Key to Polymer Battery

Sep. 2009- Researchers from Uppsala University have created a cellulose-polypyrrole composite electrode material with the highest reported charge rate and capacity for nonmetal batteries.

Enhanced Solar Cell Efficiency Using Nanoimprinted Surface Morphology

Aug. 2009- Lee et. al demonstrate a simple, low-cost method to imprint nanoscale patterns in the surface of polymer-based photovoltaic materials systems for enhanced power conversion efficiency.

A Simple Method for Forming Hybrid Core-Shell Nanoparticles Suspended in Water

Sep. 2008- Jean-Christophe Daigle and Jerome P. Claverie report a method for fabricating materials composed of inorganic nanoparticles encased in organic polymer shells.   

Block Copolymer Lithography for Enhanced Microprocessors

Sep. 2008- University of California at Santa Barbara: Researchers have developed a novel process to create nanoscale structures that could enable smaller, faster and more efficient microprocessors.

Repository

Additive-loaded EUV photoresists: performance enhancement and the underlying physics

A series of molecular glasses (MGs) protected with multiple tert-butoxylcarbonylmethyl (tBCM) groups are employed as additives to enhance extreme ultra violet (EUV) photolithographic performance of a hydroxystyrene based Environmentally Stable Chemically Amplified Photoresist (ESCAP). The tBCM groups deprotect to form carboxylic acids that are capable of hydrogen bonding with chain segments of ...

Business Opportunities in Nanotechnology: Impacts of the Economic Slowdown

The economic slowdown has had its effects on high technology businessesparticularly those engaged in early stage nanotechnologiesimpacting issues such as investment funding, workforce, supply chain, equipment, and revenues. Broader implications for the future economic growth and proliferation of emerging nanotechnologies and nanomanufacturing capabilities remain difficult to assess. Forecast ...

Chain-End Functionalized Nanopatterned Polymer Brushes Grown via in Situ Nitroxide Free Radical Exchange

The patterning of biologically active materials has been accomplished by the use of imprint lithography of functional photopolymer resins to create controlled nanoscale patterns of a cross-linked photopolymer containing embedded initiator groups. Functionalized polymer brushes consisting of polystyrene and poly(N,N-dimethylacrylamide) were grown from these patterned layers by nitroxide-mediated ...

Cyclophosphazene-containing Polymers as Imprint Lithography Resists

We present the evaluation of a cyclophosphazene-containing polymer as a patternable resist for imprint lithography. Hexamethacryloxybutoxycyclotriphosphazene layers containing small amounts of photoinitiator can be applied to silicon wafers substrates by spin coating techniques and cured photochemically to give tough, network polymer thin films. The films were characterized by FT-IR. Thin films ...

Development of Melt Spun Polymer Nanofibers

Melt spinning is an inexpensive means of producing highly oriented and crystalline fibers. Industrial production rates are typically 1000s of meters per minute. Creating good quality fibers becomes increasingly difficult as the diameter of the fibers is decreased to below approximately 10-15 microns. One approach to making very small fibers is to use High Island Count Islands-in-the Sea ...

Device Fabrication by Easy Soft Imprint Nano-Lithography

A new robust and exceptionally simple procedure for soft nano-imprint lithography (Soft-NIL) is described, which provides easy access to nanoscale patterns of a host of active materials on a Si/SiOx surface. Partial curing of a thiol-ene based UV cross-linkable resin (

Electrically curable double-layer polymer resist for dynamic nanoscale lithography

A double-layer polymer resist composed of a top electrically curable resin layer with onium salt photo-acid generators and a bottom ionic conductive polymer transfer layer has been developed for dynamic nanoscale electric lithography. By applying an electric potential on the resist from conductive patterns on a mask, the acid generators under the conductive patterns are electrolyzed into proton ...

Enhanced Solar-Cell Efficiency in Bulk-Heterojunction Polymer Systems Obtained by Nanoimprinting with Commercially Available AAO Membrane Filters

The power-conversion efficiency of an organic photovoltaic cell composed of poly(3-hexylthiophene) and (6,6)-phenyl-C61-butyric acid methyl ester is enhanced significantly by controlling the surface morphology of the photoactive layer. The hierarchical micro-/nanostructures of the active-layer surface are fabricated by nanoimprinting the active layer with a commercially available, anodic aluminum ...

Evaluation of new materials for plasmonic imaging lithography at 476 nm using near field scanning optical microscopy

A new resist formulation was successfully patterned using near field optical microscopy in order to simulate the conditions prevailing in silver based plasmonic imaging tools. Radiation at 476 nm was transmitted through a near field scanning optical microscopy fiber probe tip to cross-link a film of poly(4-methacrylmethyl styrene) via polymerization of pendant methacryloyl groups using ...

Evidence for re-entrant behavior in laponitePEO systems

We observe evidence of re-entrant behavior in dispersions of a discotic clay, laponite, with added polymer. Under basic conditions, neat laponite forms a disordered colloidal glass. Rheologically, this phase behaves as a viscoelastic solid, and dynamic light scattering shows evidence of non-ergodic behavior. Addition of low molecular weight poly(ethylene oxide) (PEO) melts the glass, resulting in ...

Fabrication and Characterization of a Nanowire/Polymer-Based Nanocomposite for a Prototype Thermoelectric Device

This paper discusses the design, fabrication and testing of a novel thermoelectric device comprised of arrays of silicon nanowires embedded in a polymer matrix. By exploiting the low-thermal conductivity of the composite and presumably high-power factor of the nanowires, a thermoelectric figure of merit, higher than the corresponding bulk value, should result. Arrays were first synthesized using ...

Formation of Nanopatterned Polymer Blends in Photovoltaic Devices

In this paper, we demonstrate a double nanoimprinting process that allows the formation of nanostructured polymer heterojunctions of composition and morphology that can be selected independently. We fabricated photovoltaic (PV) devices with extremely high densities (1014/mm2) of interpenetrating nanoscale columnar features in the active polymer blend layer. The smallest feature sizes are as small ...

Gel Point Determination of Biopolymer Based Semi-IPN Hydrogels

Water-based semi-IPNs (Interpenetrating Polymer Networks) were prepared by mixing two biopolymers, alginate and hydrophobically modified ethylhydroxy ethyl cellulose (HMEHEC), followed by crosslinking the alginate by in-situ release of calcium ions. By altering two different parameters, molecular weight of HMEHEC and calcium crosslinker concentration, we were able to fine tune the rheological ...

Generating Patterns for Sensing Using a Single Receptor Scaffold

A new strategy for generating patterns in sensing is described. Typically, pattern recognition is obtained by designing a variety of receptors that bind to analytes with varying binding affinities. In this paper, we outline a new strategy where differential responses can be obtained from one receptor, by simply varying the noncovalently bound fluorescent transducer.

Graphoepitaxy of Self-Assembled Block Copolymers on Two-Dimensional Periodic Patterned Templates

Self-assembling materials are the building blocks of bottom-up nanofabrication processes, but they need to be templated to impose long-range order and eliminate defects. In this work, the self-assembly of a thin film of a spherical-morphology block copolymer is templated using an array of nanoscale topographical elements that act as surrogates for the minority domains of the block copolymer. The ...

Long-term aging effects on the rheology of neat laponite and laponitePEO dispersions

We observe aging behavior of neat laponite systems over the course of 1,000 or more days. Under basic conditions, low laponite concentrations (1 wt%) slowly evolve from a viscoelastic liquid to a glass made of clusters acting as constituent elements interacting via long-range repulsion. Higher concentrations of laponite (3 wt%) quickly form a glass of individual particles. Intermediate ...

Maskless Nanoscale Writing of Nanoparticle?Polymer Composites and Nanoparticle Assemblies using Thermal Nanoprobes

Nanoparticle polymer composites containing metal, semiconductor, magnetic, and optically active nanoparticles were deposited onto multiple substrates from a heatable atomic force microscope tip. The nanoparticle nanostructures were functional as deposited or could be etched with an oxygen plasma, revealing single nanoparticle lithographic resolution. Many types of nanoparticles can be patterned ...

Molecular discrimination inside polymer nanotubules

Recognition of small organic molecules and large biomolecules such as proteins is of great importance in pharmaceutical as well as biological applications. Recognition inside a nanoporous membrane is particularly attractive, because of the advantages associated with ligandreceptor interactions in confined spaces. Classical nanoporous membrane-based separations simply use the difference in size ...

Nanodiamond-Embedded Microfilm Devices for Localized Chemotherapeutic Elution

Nanodiamonds (NDs) of 2?8 nm diameters physically bound with the chemotherapeutic agent doxorubicin hydrochloride (DOX) were embedded within a parylene C polymer microfilm through a facile and scalable process. The microfilm architecture consists of DOX-ND conjugates sandwiched between a base and thin variable layer of parylene C which allows for modulation of release. Successive layers of ...

Organic nonvolatile memory by dopant-configurable polymer

We report an organic, nonvolatile memory based on dopant concentration-induced conductance changes in a conjugated polymer. Consisting of a polymer poly [2-methoxy-5-(2?-ethylhexyloxy)-p-phenylene vinylene] (MEH-PPV)/ionic conductor (RbAg4I5) bilayer sandwiched between two metal electrodes, the device is electrically switched between its low-conductance off state and high-conductance on state ...

Patterned Layers of a Semiconducting Polymer via Imprinting and Microwave-Assisted Grafting

Enhancements in both the rate and extent of grafting of poly(9,9-n-dihexyl fluorene) (PDHF) onto flat and nanopatterned crosslinked photopolymer films are described. Reactivity of the surfaces toward grafting via the Yamamoto-type Ni(0)-mediated coupling reaction is increased by synthesizing and incorporating 2,7-dibromo-9-fluorenyl methacrylate (DBFM, 2) as a new grafting agent. Varying the ...

Positioning Multiple Proteins at the Nanoscale with Electron Beam Cross-Linked Functional Polymers

Constructing multicomponent protein structures that match the complexity of those found in nature is essential for the next generation of medical materials. In this report, a versatile method for precisely arranging multicomponent protein nanopatterns in two-dimensional single-layer or three-dimensional multilayer formats using electron beam lithography is described. Eight-arm poly(ethylene ...

Protein Micropatterns Using a pH-Responsive Polymer and Light

Protein and peptide microarrays are popular candidates for medical diagnostics because of the possibility for high sensitivity and simultaneous marker screening. To realize the potential of these arrays, new strategies for ligand patterning are needed. We report a method for patterning proteins that utilizes a pH-responsive polymer, deep ultraviolet (DUV) light, and a photoacid generator (PAG). ...

Silicone polymer chemical vapor sensors fabricated by direct polymer patterning on substrate technique (DPPOST)

Soft polymeric materials have proven to provide a host of new capabilities for micro-electro-mechanical systems (MEMS). However, the direct patterning of soft polymeric materials on substrates is not as developed as those found in photolithographic technologies for MEMS. This paper demonstrates the patterning of fully aligned soft polymeric materials, such as the room temperature vulcanizing ...

Site-specific protein immobilization through N-terminal oxime linkages

Immobilizing proteins in specific orientations is important for diagnostic protein arrays, biomaterials, and other applications where retention of bioactivity is essential. We report an approach for protein micropatterning that exploits a chemoselective reaction to conjugate proteins at the N-terminus to polymer films. A copolymer from 2-hydroxyethyl methacrylate and a Boc-protected aminooxy ...

Universal Cyclic Polymer Templates

Two unique molecular templates for generating polymeric materials with a cyclic molecular architecture were developed by combining ring-expansion metathesis polymerization and click chemistry. These two universal cyclic polymers were used in three examples to demonstrate the wide range of potential materials enabled. They include functional cyclic polymers, cyclic polymer brushes, and cyclic ...

Well Ordered Polymer Melts from Blends of Disordered Triblock Copolymer Surfactants and Functional Homopolymers

Addition of a functional homopolymer induces disorder-to-order transition in commercially available Pluronic surfactant melts. This approach may facilitate the use of amphiphilic surfactants in the industrial fabrication of structured nanomaterials.

Organizations

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Air Control, Inc.

Air Control, Inc.

Air Control, Inc. has been a leader in the controlled environment industry since our founding in 1959 as a division of publicly traded NARCO Scientific. Since the beginning Air Control has been an innovator in the industry, working with our clients to introduce proprietary laboratory and clean solutions.

AIST-MT Co.

AIST-MT Co.

AIST-NT Co. is a young dynamic company founded by former employees of NT-MDT with the simple goal of satisfying our customers' needs and exceeding their expectations. With over 15 years experience in combined AFM/SPM/Raman Spectroscopy, our main focus is on the innovative research and development of advanced integrated scanning systems for nanotechnology. Besides the most progressive ...

ALD NanoSolutions

ALD NanoSolutions

ALD NanoSolutions helps our customers accelerate their product innovation. Our proprietary Particle ALD coating technology, which can apply designed coatings at the nanometer scale on particles of any size, creates enormous commercial opportunity for new materials development and integration. In addition, Polymer ALD forms nanocoatings on polymer films, where we are developing continuous ...

Aphios Corp.

Aphios Corp.

Aphios is developing enabling technology platforms and enhanced therapeutics for health maintenance, disease prevention and the treatment of certain infectious diseases, cancers and CNS disorders.

Applied Nanoinfusion, Inc.

Applied Nanoinfusion, Inc.

Institute for the Development and Commercialization of Advanced Sensor Technology
ANI was Incorporated in April 2009, with the purpose of providing unique solutions to the development of low-cost, monodisperse thermoplastic nanocomposite materials. ANI is located at the IDCAST Center in Dayton, Ohio. Applied Nanoinfusion, Inc. (ANI) develops and manufactures nanocomposites based on ...

Brewer Science

Brewer Science

Brewer Science is a major innovator of high-technology solutions for the semiconductor/microelectronics markets. The stringent requirements of these markets provide us with opportunities to harness the company's knowledge and creativity to provide the necessary advanced technologies. Our product line encompasses chemicals such as anti-reflective coatings and optoelectronic and MEMS ...

Hysitron

Hysitron

Hysitron is proud to be the world leader in nanomechanical testing and has brought cutting edge technology to the scientific community since 1992. As the pioneers in nanoindentation and nanomechanical property measurement, Hysitron has helped develop the world of nanotechnology to where it is today by designing and producing the most advanced instrumentation available.

Innovalight, Inc.

Innovalight, Inc.

Innovalight is focused on bringing high efficiency, low-cost solar modules to the marketplace. Enabling this manufacturing paradigm shift is the company’s silicon ink, which has been in development since 2002. Using liquid based processing Innovalight will dramatically improve the cost and efficiency of today’s solar modules.

Nanoblox, INC.

Nanoblox, INC.

Nanotechnology is the introduction of designed materials on an atomic or molecular level up for their specific properties. This not only involves newly discovered materials on the atomic/molecular level, it also involves understanding and improving on traditional materials (i.e. steel, plastics, ceramics, etc.) by knowing and controlling their structure on an atom-by-atom basis. This is ...

Nanofilm, Ltd.

Nanofilm, Ltd.

Nanofilm was founded in 1985 by Dr. Scott Rickert and Don McClusky. The foundation of the company is Dr. Rickert's pioneering work in self-assembling thin films at Case Western Reserve University where he was a professor and researcher. The company quickly began successful commercialization of nanocoatings and surface preservation treatments. In two decades the company's technology portfolio has ...

NanoSpective

NanoSpective

NanoSpective provides advanced materials characterization services. Our scientists use cutting edge technology and state-of-the-art equipment to perform nanoscale evaluation of products made from semiconductor, metal, ceramic, composite, and polymer materials. We have industry and research experience in a broad spectrum of materials. We offer complete solutions for intellectual property ...

Nanovea

Nanovea

Nanovea is the result of over 20 years experience providing professional solutions and experienced service throughout the fields of nano/micro/macro profilometry, mechanical, tribology, imaging and other related fields of materials research & development industries. After years of client feedback and the dedication to providing superior instrumental solutions Nanovea was launched in 2004 as ...

NSF Center for Hierarchical Manufacturing

NSF Center for Hierarchical Manufacturing

University of Massachusetts Amherst
The Center for Hierarchical Manufacturing (CHM) at the University of Massachusetts Amherst is an NSF Nanoscale Science and Engineering Center (NSEC) with a focus in on the development of nanomanufacturing processes. The CHM has three Technical Research Group areas (nanoscale materials and processes, nanoelectronics and bionanotechnology) and Process ...

Obducat

Obducat

Obducat is the world-leading supplier of lithography solutions for manufacturing and replication of advanced micro- and nano- scale structures. We provide viable and cost-effective lithography solutions that will give a competitive edge to our customers, enabling them to deliver break-through applications and achieve improved profitability and success. Obducat is the first company to ...

Oregon Nanoscience and Microtechnologies Institute

Oregon Nanoscience and Microtechnologies Institute

Oregon Signature Research Center
ONAMI is Oregon’s first ‘Signature Research Center’ and a multi-level collaboration among Oregon’s research universities, Pacific Northwest National Laboratory and industry in the “Silicon Forest” high-tech cluster that is home to the world’s leading semiconductor, MEMS, nanotechnology tools and ...

Porifera

Porifera

Porifera Inc. was founded with the goal of developing membranes with vastly superior permeability, durability, and selectivity for water purification and other applications such as carbon sequestration. Our vision is to use carbon nanotubes to improve membrane performance, enabling affordable and plentiful fresh drinking water worldwide. Our R&D team includes scientists and engineers with ...

PureLux, Inc

PureLux, Inc

PureLux is a spin-out from the Center for Nanotechnology and Molecular Materials at Wake Forest University focused on commercializing next generation light sources that are 10 times more efficient than incandescents and 3 times more efficient than fluorescents. PureLux was founded in March 2007 and is located in the Piedmont Triad Research Park in Winston Salem. PureLux retains a worldwide ...

Redex Nanolabs

Redex Nanolabs

Redex Nano Labs is an independent and indigenous manufacturer of Multiwall Carbon Nano Tube (MWCNT), Graphene Oxide,Reduced Graphene Oxide & Graphene and the variant dispersions of MWCNT and Graphene with different functional groups. We are preparing MWCNT & Graphene through Chemical and CVD route with the purity >95% up to 99% (recommended). We are having our own Patent Pending Method for ...

Individuals

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James J. Watkins

James J. Watkins

NSF Center for Hierarchical Manufacturing
University of Massachusetts, Amherst

Keith Dan Humfeld

Keith Dan Humfeld

The Boeing Company
Phantom Works - Structural Technology

Ammar Jangbarwala

Ammar Jangbarwala

Catalyx Nanotech Inc

Ken Bosnick

Ken Bosnick

National Institute for Nanotechnology

Prof. Mark Andrews

Prof. Mark Andrews

Center for Self Assembled Chemical Structures; ArboraNano
McGill University

Kamal Sarkar

Kamal Sarkar

Center for Nanoscale Chemical-Electrical-Mechanical Manufacturing Systems
University of Texas, Pan American

Alex G. Fassbender

Alex G. Fassbender

Lockheed Martin Corporation

Jin Ho Kim

Jin Ho Kim

Brown University

Anil Diwan

Anil Diwan

NanoViricides, Inc.

Madhurima Pandey

Madhurima Pandey

Redex Nano Lab

Ramani Dhandapani

Ramani Dhandapani

Indian Institute of Technology Chennai India
Physics Equipmets Co.

Kam N Nedev

Kam N Nedev

University of Sofia, Physical Faculty