Microfluidic pressure sensing using trapped air compression.

Microfluidic pressure sensing using trapped air compression. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Microfluidic pressure sensing using trapped air compression. Abstract Text:

Nimisha Srivastava,Mark A Burns,

We have developed a microfluidic method for measuring the fluid pressure head experienced at any location inside a microchannel. The principal component is a microfabricated sealed chamber with a single inlet and no exit; the entrance to the single inlet is positioned at the location where pressure is to be measured. The pressure measurement is then based on monitoring the movement of a liquid-air interface as it compresses air trapped inside the microfabricated sealed chamber and calculating the pressure using the ideal gas law. The method has been used to measure the pressure of the air stream and continuous liquid flow inside microfluidic channels (d approximately 50 microm). Further, a pressure drop has also been measured using multiple microfabricated sealed chambers. For air pressure, a resolution of 700 Pa within a full-scale range of 700-100 kPa was obtained. For liquids, pressure drops as low as 70 Pa were obtained in an operating range from 70 Pa to 10 kPa. Since the method primarily uses a microfluidic sealed chamber, it does not require additional fabrication steps and may easily be incorporated in several lab-on-a-chip fluidic applications for laminar as well as turbulent flow conditions.

Microfluidic pressure sensing using trapped air compression. Publishing Authors By Initials

N Srivastava,MA Burns,

For similar natural sciences: physics: pressure research abstracts see: natural sciences: physics: pressure research

PUBMED ID PMID:

MEDLINE DATE:

Microfluidic pressure sensing using trapped air compression. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Lab on a chip

VOLUME: 7

Page Numbers: 633-7

Journal Abbreviation:

ISSN: 1473-0197

DAY: 4

MONTH: 04

YEAR: 2007

Microfluidic pressure sensing using trapped air compression. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 101128948

Microfluidic pressure sensing using trapped air compression. Keywords Mesh Terms:

KEYWORDS: Pressure

MESH TERMS: methods

Chemical & Substance for Abstract: Microfluidic pressure sensing using trapped air compression. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Microfluidic pressure sensing using trapped air compression.

AFFILIATION: Biosystems Research Department, Sandia National Laboratories, Livermore, CA 94550, USA.

Country: England

AGENCY: United States NIAID

GRANT: R01 AI49541

ACRONYM: AI

MEDLINETA: Lab Chip

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Microfluidic pressure sensing using trapped air compression Related Publications

• Anger expression and pain: an overview of findings and possible mechanisms.
• Association between a leukotriene C4 synthase gene promoter polymorphism and coronary artery calcium in young women: the Muscatine Study.
• Beef cow reproduction as affected by postpartum nutrition and temporary calf removal.
• Biodegradable estradiol microspheres do not affect uterine involution or characteristics of postpartum estrus in mares.
• Comparison of various predictive formulae for the estimation of resting energy expenditure.
• Dynamic performance of accommodating intraocular lenses in a negative feedback control system: a simulation-based study.
• Electronic drop sensing in microfluidic devices: automated operation of a nanoliter viscometer.
• Enhanced protection against malaria by a chimeric merozoite surface protein vaccine.
• Exacerbations in cystic fibrosis. 1: Epidemiology and pathogenesis.
• Fetal development and gestational changes in Bos taurus and Bos indicus genotypes in the tropics.
• Food security and eating well for all in Victoria.
• Gene expression and cell cycle arrest in a rat keratinocyte line exposed to 56Fe ions.
• Human coronavirus-NL63 infection is not associated with acute Kawasaki disease.
• Impressions of Kawasaki syndrome in India.
• Microbiology, safety, and pharmacokinetics of aztreonam lysinate for inhalation in patients with cystic fibrosis.
• Microfluidic pressure sensing using trapped air compression.
• Microstencils for the patterning of nontraditional materials.
• Migration of a gastrostomy tube into the kidney.
• Nanoliter viscometer for analyzing blood plasma and other liquid samples.
• Nanopore sequencing technology: research trends and applications.
• Neuropsychiatric consequences of traumatic brain injury: a comparison between two age groups.
• Optimization of dielectrophoretic DNA stretching in microfabricated devices.
• Palmitate turnover and its response to glucose infusion in weight-losing cancer patients.
• Percutaneous lumbar discectomy with a working endoscope and laser assistance.
• Progesterone and estradiol in biodegradable microspheres for control of estrus and ovulation in mares.
• Stiff-person syndrome.
• The social brain hypothesis of schizophrenia.
• The utilisation of peripherally-administered intravenous nutrient solutions.
• Trait anger and blood pressure recovery following acute pain: evidence for opioid-mediated effects.
• Vagal afferent neurons projecting to the stomach and small intestine exhibit multiple N-methyl-D-aspartate receptor subunit phenotypes.