Navigation Links
NIST tunes 'metasurface' with fluid in new concept for sensing and chemistry
Date:6/8/2011

Like an opera singer hitting a note that shatters a glass, a signal at a particular resonant frequency can concentrate energy in a material and change its properties. And as with 18th century "musical glasses," adding a little water can change the critical pitch. Echoing both phenomena, researchers at the National Institute of Standards and Technology (NIST) have demonstrated a unique fluid-tuned "metasurface," a concept that may be useful in biomedical sensors and microwave-assisted chemistry.

A metasurface or metafilm is a two-dimensional version of a metamaterial, popularized recently in technologies with seemingly unnatural properties, such as the illusion of invisibility. Metamaterials have special properties not found in nature, often because of a novel structure. NIST's metasurface is a small piece of composite circuit board studded with metal patches in specific geometries and arrangements to create a structure that can reflect, store, or transmit energy (that is, allow it to pass right through).

As described in a new paper,* NIST researchers used purified water to tune the metasurface's resonant frequencythe specific microwave frequency at which the surface can accumulate or store energy. They also calculated that the metasurface could concentrate electric field strength in localized areas, and thus might be used to heat fluids and promote microwave-assisted chemical or biochemical reactions.

The metasurface's behavior is due to interactions of 18 square copper frame structures, each 10 millimeters on a side (see photo). Computer simulations help design the copper squares to respond to a specific frequency. They are easily excited by microwaves, and each one can store energy in a T-shaped gap in its midsection when the metasurface is in a resonant condition. Fluid channels made of plastic tubing are bonded across the gaps. The sample is placed in a waveguide, which directs the microwaves and acts like a kaleidoscope, with
'/>"/>

Contact: Laura Ost
laura.ost@nist.gov
303-497-4880
National Institute of Standards and Technology (NIST)
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Human genes sing different tunes in different tissues
2. Songbirds tweak their tunes in different ways to cope with clamor
3. Kalyon wins Thomas Baron Award in Fluid-Particle Systems
4. Animal and biological science highlights: San Antonio Fluid Dynamics Conference, Nov. 23-25
5. Uncultured bacteria found in amniotic fluids of women who experience preterm births
6. GEN reports on growing reliance on microfluidics technology
7. Study: Fluid buildup in lungs is part of the damage done by the flu
8. Amniotic fluid may provide new source of stem cells for future therapies
9. NIST-Cornell team builds worlds first nanofluidic device with complex 3-D surfaces
10. Microfluidic palette may paint clearer picture of biological processes
11. NIST calculations may improve temperature measures for microfluidics
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
NIST tunes 'metasurface' with fluid in new concept for sensing and chemistry
(Date:12/11/2014)... , Dec. 10, 2014  Data Sciences International ... has released a new series of digital telemetry ... toxicology researchers. M series, part of the PhysioTel™ ... the best possible physiologic data when incorporating functional ... functional endpoints to toxicology studies has evolved from ...
(Date:12/10/2014)... Dec. 9, 2014  Wake Forest Baptist Medical Center today ... its School of Medicine. Funding for this $50 million ... that will be publicly launched next summer. ... the former 60 series R.J. Reynolds Tobacco Company complex, ... will begin immediately with plans to be ready to ...
(Date:12/10/2014)... , December 9, 2014 ... ITN,s BCARD Platform   ... enterprise meeting scheduling solutions for business-to-business (B2B) events, ... world leader in mobile near-field communication (NFC), Bluetooth ...      (Logo: http://photos.prnewswire.com/prnh/20140612/691055) , Jifflenow ...
Breaking Biology News(10 mins):New telemetry implants expected to change how large animal toxicology studies are conducted 2Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 2Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 3Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 4Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 2Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 3
... panic disorder and obsessive-compulsive disorders, ,alcohol and drug dependence, ... of ,disorders of the brain. The size, the burden ... ,immense, and has so far been underestimated, as Prof. ... Conference to the 20th ECNP Congress for ,Neuropsychopharmacology in ...
... early ,90s have seen the potential for cleaning up contaminated ... pollutants through their roots. Then the plants break certain kinds ... into their roots, stems and leaves or release into the ... this is that the process is slow and halts completely ...
... framework of an ESA-supported project, is using satellite images ... to ensure the more efficient use of pesticides. ... be registered with the national members of the European ... data derived from field trials. EPPO has defined zones ...
Cached Biology News:Mental disorders are disorders of the brain 2Mental disorders are disorders of the brain 3Scientists ramp up ability of poplar plants to disarm toxic pollutants 2Scientists ramp up ability of poplar plants to disarm toxic pollutants 3Scientists ramp up ability of poplar plants to disarm toxic pollutants 4
(Date:12/24/2014)... 2014 Nashville Fertility Center announced that ... for the American Society for Reproductive Medicine (ASRM), a ... in reproductive medicine. In his new role as ... executive board and will have a voice in furthering ... actively supported ASRM since 1984 when he joined while ...
(Date:12/24/2014)... 2014 Vermillion, Inc. (Nasdaq:   VRML), ... announced today that investors including Oracle Investment Management, ... and several Vermillion directors have agreed to purchase ... common stock and warrants to purchase unregistered shares ... Under the terms of the ...
(Date:12/24/2014)... and NEW YORK , Dec. ... its open-label pilot study of mazindol in children with ... and Therapy in December 2014 . ... in children with attention deficit/hyperactivity disorder" ( Konofal et ... 2014 Dec 1;8:2321-2332. eCollection 2014 ) shows that ...
(Date:12/22/2014)... 2014  Alternative Energy & Environmental Solutions, Inc., ... a letter of intent to acquire BioTechPharma Corporation, ... a nanotechnology-based development platform used to create drug ... on-site collection and testing to identify infectious disease, ... an immediate, non-invasive and cost-effective manner. ...
Breaking Biology Technology:Nashville Fertility Center Announces Dr. George A. Hill Selected to Serve as ASRM Treasurer for 2014-15 2Nashville Fertility Center Announces Dr. George A. Hill Selected to Serve as ASRM Treasurer for 2014-15 3Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 2Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 3Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 4Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 5Redefining ADHD: A New Approach & A Shift of Paradigm in ADHD Therapeutics 2Redefining ADHD: A New Approach & A Shift of Paradigm in ADHD Therapeutics 3ALNE Announces Intention To Acquire BioTechPharma 2
... REYKJAVIK, Iceland, November 4 deCODE,genetics (Nasdaq: DCGN ... a,hearing before a Nasdaq Listing Qualifications Panel to ... Rule 4450(b)(1)(A), which,requires a minimum market value of ... deCODE received a Staff Determination Letter from The,Nasdaq ...
... - Oncothyreon Inc. (Nasdaq:,ONTY) (TSX:ONY), a biotechnology company ... the treatment of cancer, today,announced that Robert Kirkman, ... present at the Rodman & Renshaw Annual Global ... 11, 2008 at 11:35 a.m.,E.T., A live ...
... leading provider of,Business Process Management (BPM), Business ... for aligning strategy with execution,today announced that ... the premier global association for professionals involved ... acquisitions,selected Metastorm as an ACG Deal of ...
Cached Biology Technology:deCODE Requests Hearing With Nasdaq Following Receipt of Staff Determination Letter 2deCODE Requests Hearing With Nasdaq Following Receipt of Staff Determination Letter 3deCODE Requests Hearing With Nasdaq Following Receipt of Staff Determination Letter 4Metastorm Selected as a Finalist in ACG Deal of the Year Awards 2
... Perhaps sheer in-house demand is causing shortages ... precious antibody. This can cause unwanted distractions, problems ... royalties for your hard work and endeavour! Bring ... up and market it internationally. We work under ...
... Neuromedin U-23 (rat) - Diluted Antiserum ... Family: Neuromedin U-23 (rat) Immunology Products, ... 2 For our corresponding peptide and ... peptide, please see Neuromedin U-23 (rat) (H-9295) ...
... vaccinia virus is a type I eukaryotic ... superhelical turns (also called right- and left-handed ... of the reaction is a covalently closed, ... superhelical turns. DNA Topoisomerase I does not ...
...
Biology Products: