Navigation Links
Micro rheometer is latest Lab On a Chip device
Date:9/1/2010

Researchers at the National Institute of Standards and Technology (NIST) have demonstrated a microminiaturized device that can make complex viscosity measurementscritical data for a wide variety of fields dealing with things that have to flowon sample sizes as small as a few nanoliters. Currently a table-top prototype, the NIST rheometer could be a particularly valuable tool for biotechnologists studying minute quantities of complex materials that must function in confined spaces.

Viscosity, elasticity and how materials flow when subject to a force is the subject of rheology, and the measurements tell a lot about a complicated material like a gel. Is it more like a liquid or a solid? By how much and under what conditions? The popular toy Silly Putty is a classic example of complex viscoelasticity, bouncing better than a rubber ball under a sharp, sudden force but slumping into a puddle when left alone.

One common way to make dynamic rheology measurements (how behavior changes with the speed or frequency of the applied force) is with a sizeable lab instrument that traps a test sample between a fixed plate and one that moves, and measures how much the thin layer of test material resists being deformed. Typical sample sizes are around a couple of milliliters, which doesn't sound like much, but, says polymer scientist Gordon Christopher, for some researchers it's a whole bunch.

"A lot of people in the biosciences are making very complex designer fluids based on proteins where you might make only 10 milliliters at a time. Polypeptide hydrogels for drug delivery or tissue replacement, for example," Christopher explains. "Their flow behaviors are very complicated and you really need to understand them, but in a traditional rheometer your sample for a single test is a large percentage of what you just spent two months making."

Inspired by a talk by a NIST scientist working on the design of novel nano positioning microelectrom
'/>"/>

Contact: Michael Baum
michael.baum@nist.gov
301-975-2763
National Institute of Standards and Technology (NIST)
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. Microplasmin Meets Primary Endpoint in Second Phase III Trial in VMA, Confirms Positive Findings of First Trial
2. MO BIO Laboratories, Inc. DNA Isolation Products Used to Analyze Microbes Present in Deepwater Horizon Oil Plume
3. Frost & Sullivan Recognizes Algasol Renewables for its Micro Algae Biomass Production System
4. Phase III Randomised Controlled Trial Confirms Clinical Efficacy and Safety of Radioembolisation Using 90Y-resin Microspheres for Patients With Inoperable Colorectal Cancer Liver Metastases That Have Failed Chemotherapy
5. Applied Precision Installs New DeltaVision
6. OMX® Super-Resolution Imaging System in the Light Microscopy Imaging Center at Indiana University
7. Livermores DTEM earns innovation award from Microscopy Today
8. Microbix Signs $2 Million Partnership Agreement For its Livestock Semen Sexing Technology (LumiSort(TM))
9. European cooperation ensures global leadership in microelectronics
10. Small wires make big connections for microelectronics
11. Ocean Nutrition Canada Announces Acquisition of Exclusive License to GAT Food Essentials, Omega-3 Microencapsulation-Emulsion Technology
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Micro rheometer is latest Lab On a Chip device
(Date:7/29/2014)... 29, 2014 The advanced optical methods ... that are driving a revolution in the neurosciences were ... journal published by SPIE, the international society for ... with the launch of the BRAIN Initiative in the ... lay out a vision for and provide examples of ...
(Date:7/29/2014)... (July 29, 2014) Tough, ultralight foam of atom-thick ... through a chemical process invented at Rice University. ... like a nanoscale building, with floors and walls that ... of two-dimensional materials: floors and walls of graphene oxide ... platelets. , The researchers say the foam could ...
(Date:7/29/2014)... generation biofuels are a viable solution to the dilemma of ... is very cheap, this is affecting the biofuels market in ... could be in comparison to natural gas. This, in ... for renewable energy developers to get the economics to work ... certain companies have shifted their focused within renewable energy. ...
(Date:7/29/2014)... , July 29, 2014 A ... equipment market (types, applications and geography) - Size, Share, ... Opportunities, Segmentation and Forecast, 2013 - 2020", suggests that ... $12.1 billion by 2020 registering a CAGR of 11.1% ... breakthrough achieved by the electro surgical devices in operative ...
Breaking Biology Technology:SPIE Launches 'Neurophotonics' Journal with Special Section on BRAIN Initiative 2SPIE Launches 'Neurophotonics' Journal with Special Section on BRAIN Initiative 3SPIE Launches 'Neurophotonics' Journal with Special Section on BRAIN Initiative 4Tough foam from tiny sheets 2Renewable Waste Intelligence: Could Renewable Chemicals Be the Future for the Renewable Energy Industry? 2Global Surgical Equipment Market is expected to reach $12.1 billion by 2020 - Allied Market Research 2Global Surgical Equipment Market is expected to reach $12.1 billion by 2020 - Allied Market Research 3
... Calif., May 12 An audit of the,state ... flaws,in Proposition 71 that created the agency, Consumer ... State Controller John Chiang found that with a,relatively ... complies with the requirements of Proposition 71, the,initiative ...
... May 12 Idenix,Pharmaceuticals, Inc. (Nasdaq: IDIX ) ... at the Rodman & Renshaw 5th Annual Global,Healthcare Conference ... at Le,Meridien Beach Plaza Hotel in Monte Carlo, Monaco., ... presentation can be,accessed under "Calendar of Events" in the ...
... FREEPORT, N.Y., May 12 "What,s the difference ... repair my DNA?" Hundreds of,women are trying to ... will give me beautiful, healthy skin?, Bio-scientist ... care expertise -- more than 20 years of ...
Cached Biology Technology:Controller's Stem Cell Agency Audit Ignores California Agency's Built-in Flaws 2Controller's Stem Cell Agency Audit Ignores California Agency's Built-in Flaws 3A Scientist Dechipers the Code to Beautiful, Healthy Skin in 'The New Science of Perfect Skin' 2
(Date:7/29/2014)... sperm, bacteria and algae, propel themselves using whip-like ... of a millimetre long, function like tiny oars, ... called cilia are found on the surfaces of ... moving liquids over the cell. , Flagella ... and expel pathogens from our airways, they establish ...
(Date:7/28/2014)... in 1911, but new research shows that industrial air ... from 16 ice cores collected from widely spaced locations ... group led by Joe McConnell of the Desert Research ... and precise reconstruction to date of lead pollution over ... article published today in the online edition of the ...
(Date:7/28/2014)... ago, MIT professor John Essigmann and colleagues from the University ... They thought if they could induce the virus to mutate ... out a strategy that our immune system uses against ... which caused HIV to mutate at an enhanced rate, as ... in a small clinical trial reported in 2011. In a ...
Breaking Biology News(10 mins):Microscopic rowing -- without a cox 2Microscopic rowing -- without a cox 3Lead pollution beat explorers to South Pole, persists today 2Lead pollution beat explorers to South Pole, persists today 3Forced mutations doom HIV 2Forced mutations doom HIV 3Forced mutations doom HIV 4
... some of the key factors that prevent the repair ... of premature birth, and other diseases and conditions. The ... fails to repair itself and suggest ways that at ... The research is published in the August edition of ...
... virus to enter new cells was likely stolen from a ... Boyce Thompson Institute (BTI) at Cornell University report. , Virologists ... can liquefy their insect hosts in a matter of days ... as potential pesticides. But the viruses would require tweaking to ...
... encountered it on the street tomorrow? What if that alien ... a laboratory right here on Earth and functioned differently from ... beginnings of an answer. In a new book, the University ... or biological classification system, to account for a variety of ...
Cached Biology News:Molecular Partners Required For Appropriate Neuronal Gene Repression 2Molecular Partners Required For Appropriate Neuronal Gene Repression 3Molecular Partners Required For Appropriate Neuronal Gene Repression 4Stolen gene allows insect virus to enter cells 2Stolen gene allows insect virus to enter cells 3New book expands biological classifications to account for 'alien' life 2New book expands biological classifications to account for 'alien' life 3
RAB32, member RAS oncogene family, mRNA (cDNA clone MGC:13500 IMAGE:4280407), complete cds...
Request Info...
Phospho-TAO2 (S181) Affinity Purified Polyclonal Ab Protein Family: Other Intracellular Kinases...
PEG 8000 is used in the precipitation of phage, isolation of plasmid DNA and the enhancement of blunt-ended ligation reactions....
Biology Products: