conductivity

ORNL finding could help electronics industry enter new phase

...ation," Maksymovych said. "We are excited by our discovery and the prospect of finally being able to exploit the long-conjectured bi-stable electrical conductivity of ferroelectric materials. "Harnessing this functionality will ultimately enable smart and ultra-dense memory technology." In the paper, the au...

Sechrist Introduces Hyperbaric Industry's First Patient-Positioning Pads Designed for Use in Hyperbaric Chambers

...hieving optimum patient comfort during treatment. The HBO2 Patient Comfort Positioning Pads have the compact size, flame and moisture retardation and conductivity required for use in high oxygen concentration environments. The three configurations of the Sechrist HBO2 Patient Comfort Positioning Pads are ea...

MRI scans can predict effects of MS flare-ups on optic nerve

...articipants with optic neuritis or a history of it detailed assessments of their visual health, including tests of visual acuity and the thickness and conductivity of their optic nerves. In the healthy subjects, DTI scans showed that the water diffusion along the length of the subjects' optic nerves, a charact...

Novel Solid-State Laser Design Based on Synthetic Diamond From Element Six Opens up New Applications

... of only a few watts due to thermal problems. Diamond has excellent thermal conductivity combined with a low thermal coefficient of expansion allowing greater power...her poor conductors of heat. This is where diamond comes in. With a thermal conductivity that is two to three orders of magnitude better than typical Raman active c...

Drug Cuts Muscle Damage After Heart Attack

...d. "We also found, however, many promising signs of beneficial drug activity such as lessened damage to the heart muscle and improvement in electrical conductivity in the heart that corresponded to restoration of blood flow to the heart muscle. As a result, we feel this drug has the potential to be helpful in red...

Novel compound may lessen heart attack damage

...e. We also found, however, many promising signs of beneficial drug activity such as lessened damage to the heart muscle and improvement in electrical conductivity in the heart that corresponded to restoration of blood flow to the heart muscle. As a result, we feel this drug has the potential to be helpful in re...

Novel Light Weight Polymers Made Up of Carbon Nanotubes

... composition needed to be comprised of nanotubes to increase the electrical conductivity by 10 orders of magnitude. The addition of carbon nanotubes also in...r, high aspect ratio, high mechanical strength, good electrical and thermal conductivity and light weight, Gupta and his team found that carbon nanotubes had all of...

Better Communication Ensured Between Humans and Computers

...s is mainly tuned to react to or respond to what their users feel. This system consists of sensors in a glove which measures the temperature, skin conductivity and a belt to read the pulse. In order to develop the computer users were requested to play a game and their emotions are tracked and interpreted by t...

conductivity in Medical Products

QC 900 Hematocrit Control

Description:... QC 900 is an assayed quality control material for analyzers measuring hematocrit by electrical conductivity methodologies. It is available in two (2) levels for monitoring analyzer performance at varying points within the clinical range....
Company:RNA Medical

Uniphor electrophoresis units

Description:...are equipped with SCE (Solid Carbon Electrodes) electrodes, which help avoid any of the known problems of Platinum wire electrodes due to their higher conductivity and larger contact area with the gel. -universal horizontal unit -Comp Dim: electrode distance ≥4 ≤100 mm gel size ≤80 120 mm -Mfr...
Company:Sigma-Aldrich

Sweat Control

Description:...screening of sweat testing to confirm cystic fibrosis. The controls are compatible for use with Chloridometer, Flame Photometer, Osmometer, Sweat-Chek conductivity analyzer and Dimension, Schales & Schales Titration, Synchron and Vitros ISE electrodes....
Company:Quantimetrix Corporation

Milli-Q Element System (non-TOC)

Description:...ental to particular applications such as HPLC, molecular biology and ICP-MS. The systems incorporate a high precision resistivity monitor that records conductivity or resistivity (compensated or not to 25 C), and also feature a built-in TOC monitor with a 1 999 ppb detection range for accurate analysis of organi...
Company:Millipore

Milli-Q Element A10 System

Description:...ental to particular applications such as HPLC, molecular biology and ICP-MS. The systems incorporate a high precision resistivity monitor that records conductivity or resistivity (compensated or not to 25 C), and also feature a built-in TOC monitor with a 1 999 ppb detection range for accurate analysis of organi...
Company:Millipore

Milli-Q Synthesis (non-TOC)

Description:...ental to particular applications such as HPLC, molecular biology and ICP-MS. The systems incorporate a high precision resistivity monitor that records conductivity or resistivity (compensated or not to 25 C), and also feature a built-in TOC monitor with a 1 999 ppb detection range for accurate analysis of organi...
Company:Millipore

Milli-Q Synthesis bench-integrated system (non-TOC)

Description:...ental to particular applications such as HPLC, molecular biology and ICP-MS. The systems incorporate a high precision resistivity monitor that records conductivity or resistivity (compensated or not to 25 C), and also feature a built-in TOC monitor with a 1 999 ppb detection range for accurate analysis of organi...
Company:Millipore

Milli-Q Synthesis System (non-TOC)

Description:...ental to particular applications such as HPLC, molecular biology and ICP-MS. The systems incorporate a high precision resistivity monitor that records conductivity or resistivity (compensated or not to 25 C), and also feature a built-in TOC monitor with a 1 999 ppb detection range for accurate analysis of organi...
Company:Millipore

Milli-Q Synthesis A10 bench-integrated system

Description:...ental to particular applications such as HPLC, molecular biology and ICP-MS. The systems incorporate a high precision resistivity monitor that records conductivity or resistivity (compensated or not to 25 C), and also feature a built-in TOC monitor with a 1 999 ppb detection range for accurate analysis of organi...
Company:Millipore

Milli-Q Biocel bench-integrated system (non-TOC)

Description:...ental to particular applications such as HPLC, molecular biology and ICP-MS. The systems incorporate a high precision resistivity monitor that records conductivity or resistivity (compensated or not to 25 C), and also feature a built-in TOC monitor with a 1 999 ppb detection range for accurate analysis of organi...
Company:Millipore

conductivity in Biological News

Wastewater produces electricity and desalinates water

...s. "When we try to use microbial fuel cells to generate electricity, the conductivity of the wastewater is very low," said Logan. "If we could add salt it would ...e cell generate electricity, as the central chamber becomes less salty, the conductivity decreases and the desalination and electrical production decreases, which i...

Progress toward artificial tissue?

...ic as the softest natural tissues while simultaneously deriving great strength from the robust DNA links. An additional advantage is the electrical conductivity of the new material, which can thus also be used in electrodes for mechanical actuators, energy storage, and sensors. For example, the researchers wer...

Capillary mats labor-saving, economical alternative to hand watering

...more drainage had larger canopies with overhead irrigation, and five species were unaffected by irrigation systems. Additionally, substrate electrical conductivity was higher for some species in winter for plants on capillary mats, thus conserving fertilizer compared with overhead irrigation. Plants maintained on...

New equation of state of seawater

... main reason for adopting the new salinity variable is to allow for the spatial differences in seawater composition; this variable composition affects conductivity differently to how it affects factors such as density, enthalpy, entropy and more. ...

Tension in the nanoworld

...operties of high-performance materials or for contact-free mapping of local conductivity in strain-engineered electronic devices ( Nature Nanotechnology , advanced ...ecade, enabling chemical recognition of nanostructures and mapping of local conductivity in industrial semiconductor nanodevices. The technique makes use of extreme...

Electromagnetic phantom exorcises specters of metal detector tests

...th carbon blacka fine powder made almost entirely of elemental carbonto yield a low-cost, easily molded compound that can mimic the average electrical conductivity of the human body (which includes blood, bone, fat, organs, muscle and skin). The material is shaped into brick-like blocks and then arranged on a non...

AGU journal highlights -- Sept. 3, 2008

...2008GL034574 5. Transient currents after lightning flashes Within the Earth system, the ocean, land, and ionosphere are highly conductive. conductivity of the atmosphere is low near sea level but increases rapidly with height up to the ionosphere. This difference gives rise to the global electric circ...

ORNL researchers analyze material with 'colossal ionic conductivity'

... developed by researchers in Spain, improves ionic conductivity near room temperature by a factor of almost 100 mi... to conduct ions, the new material maintains ionic conductivity near room temperatures. High temperatures have bee...produced the material and observed its outstanding conductivity properties, but the structural characteristics tha...

'Electrospray' droplet research yields surprising, practical results

...research will continue to study how droplet formation is influenced by other characteristics of a liquid. These characteristics include the electrical conductivity of fluids and the surface tension, the latter being responsible for the beading of water droplets on a recently waxed car. "We are just scratching ...

ASU researchers 'wire' DNA to identify mutations

...he biological information in a single DNA molecule." Measurement of DNA conductivity first requires wiring the molecule into an electrical circuit. "There are t...ation of a single base in the DNA stack can either increase or decrease the conductivity of a DNA helix, depending on the type of mismatched base. Not only was t...

conductivity in Biological Technology

Scientists demonstrate effect of confining dielectrics on semiconductor nanowire conductivity

CAMBRIDGE, Mass. May 5, 2009 Researchers at the Harvard School of Engineering and Applied Sciences (SEAS), in collaboration with researchers from Worcester Polytechnic Institute (WPI), have demonstrated, for the first time, that the activation energy of impurities in semiconductor nanowires is a...

Study explains unexpected conductivity of nanoscale silicon

When graduate student Pengpeng Zhang successfully imaged a piece of silicon just 10 nanometers-or a millionth of a centimeter-in thickness, she and her UW-Madison co-researchers were puzzled. According to established thinking, the feat should be impossible because her microscopy method required sam...

UCR scientists manipulate ripples in graphene, enabling strain-based graphene electronics

...ial and displays exceptional mechanical and electronic properties. Its one-atom thickness, planar geometry, high current-carrying capacity and thermal conductivity make it ideally suited for further miniaturizing electronics through ultra-small devices and components for semiconductor circuits and computers. B...

Graphene may have advantages over copper for IC interconnects at the nanoscale

...ons on 18 different devices was then measured using standard analytical techniques at room temperature. The best of the graphene nanoribbons showed conductivity equal to that predicted for copper interconnects of the same size. Because the comparisons were between non-optimized graphene and optimistic estimat...

Inexpensive plastic used in CDs could improve aircraft, computer electronics

...d to the composite, we also can change it from the conductivity of silicon to a few orders below that achieved by ...polycarbonate were found to possess an even higher conductivity than acid-treated carbon nanotubes. Traditionally... Curran said his group at UH achieved the highest conductivity levels so far, but also is encouraged by Blau's su...

Dozens of New Clean Technology and Nanotech Products Unveiled at TechConnect World Expo in Houston, Texas, May 5-6

... showcasing its newest Vor-ink line of conductive inks for printed electronic applications. With sinter-free processing, Vor-ink displays exceptional conductivity and flexibility on a variety of substrates. Almost 100 journalists are attending and covering the news at TechConnect World, Clea...

Researchers peer into nanowires to measure dopant properties

...e amounts of impurities called dopants. The amount of dopant determines the conductivity of the nanowire. But because nanowires are so small with diameters rang...to judge the success of the synthesis based on indirect measurements of the conductivity of nanowire devices. That meant that variations in device performance were ...

MIT virus battery could power cars, electronic devices

... common bacteriophage, which infect bacteria but are harmless to humans. The team found that incorporating carbon nanotubes increases the cathode's conductivity without adding too much weight to the battery. In lab tests, batteries with the new cathode material could be charged and discharged at least 100 time...

Nanoscience Instruments, Inc. Announces Distribution of NaugaNeedles Metallic Needle AFM Tips

...tion of high aspect, consistent geometry, and high conductivity enables a wide range of new applications not previ...t period of time. As a metallic needle wears, both conductivity and imaging quality remain constant over a very lo...wide variety of uses. The simple geometry and high conductivity of the Needle probes provides a wide range of enha...

Paper electrified by copper particles

...rface, the particles were sintered to the paper surface, and the electrical conductivity of the layer thus formed was measured. Particles manufactured using PEI rel...e temperatures, the size of the particles increased rapidly. The electrical conductivity of the sintered particles was good, which makes them promising materials fo...

conductivity in Biological Products

Acrylamide from GE Healthcare, formerly Amersham Biosciences

Description:... Acrylamide, 500 g. Assay: > 99.9%, acrylic acid: < 0.001%. conductivity (35%): < 2 umhos/cm.Risks: 45, 46, 48, 23, 24, 25 ; Safety Precautions: 53, 44. Category: Nucleotides & Enzymes & Biochemicals, Ultrapure Biochemicals...
Company:GE Healthcare, formerly Amersham Biosciences

IonQuest System with PC Control and Supressor from Cecil Instruments Ltd.

Description:... Whatever your Ion Chromatography requirements, IonQuest will provide great value plus more . The newly developed conductivity detector has very high sensitivities and exceptionally ultra-low drift . The use of continuous regeneration suppression creates even higher sensit...
Company:Cecil Instruments Ltd.

Adept HPLC System 8: Ion Chromatography from Cecil Instruments Ltd.

Description:... An excellent ion chromatography system . The sensitive conductivity detector CE 4710, with twelve ranges from 0.01S to 5000S, houses the measuring cell in a thermostatted environment. The suppressor module CE 4715, is...
Company:Cecil Instruments Ltd.

Basic IonQuest System from Cecil Instruments Ltd.

Description:...ements, IonQuest will provide great value plus more . The newly developed conductivity detector has very high sensitivities and exceptionally ultra-low drift . In addition to the standard conductivity detector, the IonQuest can be used with other detectors, such as electroche...
Company:Cecil Instruments Ltd.

Standard BioLogic LP System, 220-240 V from Bio-Rad

Description:...ory kit with MV-6 injection valve, proportioning valve or mixer, UV optics, conductivity cell, tubing and fittings kit, column and conductivity cell holder, starter kit, and instructions. Dimensions are 24 x 33 x 25 cm ...
Company:Bio-Rad

Stirbar, Trans-Blot Plus cell from Bio-Rad

Description:... The stirbar is used in the buffer tank of the Trans-Blot Plus cell to maintain uniform conductivity and temperature during electrophoretic transfer. Dimensions are 3.5 x 0.5 in....
Company:Bio-Rad

ICS-90 Entry-Level IC System from Dionex Corporation

Description:...CS-90 uses continuous chemical suppression and thermally stabilized digital conductivity detection to give you fast, accurate determinations of common anions and ca... the fluidic flow path High performance from digital, thermally controlled conductivity detection ...
Company:Dionex Corporation

10X Capillary Electrophoresis Running Buffer from Sigma-Aldrich

Description:...phoresis sequencing instruments. -Cost efficient - high quality buffer at a great value • Quality control testing of every lot ensures proper pH, conductivity and performance for Capillary Electrophoresis Sequencing • Compatible with ABI Prism3700, 3100 and 310 DNA sequencers • Room temperature sta...
Company:Sigma-Aldrich

conductivity in Biological Definition

Diffusion

...ual to a physical property (diffusivity or thermal conductivity or electrical conductivity) multiplied by a gradie...e rate of transport is governed by the electrical conductivity of the conductor and the electric field. Mo..., the rate of transport is governed by the thermal conductivity and the temperature gradient. See also ...

conductivity in Biological Dictionary

Electroporation

... Electroporation , or electropermeabilization, is a significant increase in the electrical conductivity and permeability of the cell plasma membrane caused by an externally applied electrical field. It is usually used in... electroporation ( i′l...