Navigation Links
Built-in timer for improving accuracy of cost saving paper-strip medical tests
Date:11/3/2010

Scientists are reporting the development of a simple, built-in timer intended to improve the accuracy of paper tests and test strips for diagnosing diseases inexpensively at-home and elsewhere. Their study appears in ACS' semi-monthly journal Analytical Chemistry.

Scott Phillips and Hyeran Noh note that so-called point-of-care tests include paper strip tests and others performed at home or bedside instead of in laboratories. They show special promise for improving medical care in developing countries and reducing health care costs elsewhere. When fully developed, these low-cost paper tests may replace more expensive traditional tests for detecting biomarkers in urine, blood, and other body fluids, as well as for detecting pollution in water. Many types of tests that could be used on paper, however, require precise timing using a stopwatch to provide accurate results. The authors cite as an example the CHEMCARD diagnostic test for measuring blood sugar or cholesterol in a drop of blood. It is almost 100 percent accurate when users view test results exactly 3 minutes after placing the drop of blood on the paper. Incorrect timing, however, cuts accuracy nearly in half. Patients (particularly those in the developing world), they indicate, may not have stopwatches or other timing devices, or may not use external timing devices with enough accuracy to obtain meaningful results.

The scientists describe the development of a built-in timer for paper-based diagnostic tests that eliminates the need for a stopwatch. The timer is made from a dye and the paraffin wax used in some candles. Addition of water, blood, urine or other body fluids starts the timer, and a color change signals when the time is up. The device has been modified to emit a buzz or other sound when the time is up, or even glow, the scientists note. When used with a test similar to the CHEMCARD glucose test, the timer was 97 percent accurate, slightly better than when a stopwat
'/>"/>

Contact: Michael Bernstein
m_bernstein@acs.org
202-872-6042
American Chemical Society
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Fat serves as cells built-in pH sensor: UBC research
2. High blood sugars impact on immune system holds clues to improving islet cell transplants
3. Greatest thing since sliced bread: New data offer important clues toward improving wheat yields
4. Improving livestock productivity in Honduras
5. Improving the odds
6. New patented technology for improving cardiac CTs receives NIH support
7. Improving the degradation of toxic hydrocarbons
8. Lengthening time a drug remains bound to a target may lead to improving diagnostics, therapy
9. Inventor honored for tech improving access to clean water, healthcare, and business development in India
10. Algae advances as a green alternative for improving water quality
11. Improving clinical use of stem cells to repair heart damage
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Built-in timer for improving accuracy of cost saving paper-strip medical tests
(Date:7/11/2014)... Using spider toxins to study the proteins that let ... say they have stumbled upon a biological tactic that ... insect plagues in a safe and environmentally responsible way. ... be lethal for one species and harmless for a ... target specific pests without harming beneficial species like bees. ...
(Date:7/10/2014)... In Santa Fe, Albuquerque, and other major cities in ... watered with treated municipal wastewater rather than precious potable ... more than 40% of all golf courses receive treated ... courses. , Additionally, golf courses and homeowners alike ... nutrient in fertilizer is nitrate. A New Mexico State ...
(Date:7/10/2014)... NEW YORK , June 27, 2014 /PRNewswire/ ... against Provectus Biopharmaceuticals, Inc. ("Provectus" or the "Company")(NYSE-MKT: ... action, filed in United States District Court, Middle ... Division, is on behalf of a class consisting ... otherwise acquired Provectus securities between December 17, 2013 ...
Breaking Biology News(10 mins):Potent spider toxin 'electrocutes' German, not American, cockroaches 2Potent spider toxin 'electrocutes' German, not American, cockroaches 3'Tailored' water -- the latest in lawn care 2SHAREHOLDER ALERT: Pomerantz Law Firm Announces the Filing of a Class Action against Provectus Biopharmaceuticals, Inc. and Certain Officers - PVCT 2SHAREHOLDER ALERT: Pomerantz Law Firm Announces the Filing of a Class Action against Provectus Biopharmaceuticals, Inc. and Certain Officers - PVCT 3
... by a discovery about how chickens regulate their appetites. ... the signals sent from its stomach to its brain that ... Poultry farmers often have to restrict food for chickens ... can overeat, affecting their ability to reproduce. The ...
... has shown that obesity runs in families, and twin studies ... heritability estimates over 50%. 32 genes have been identified as ... genes alone cannot fully explain the high level of heritability ... individual differences in childhood body weight. This has led to ...
... to convention, vegetation, when well-maintained, can lower the rates ... robbery and burglary, in cities, according to a Temple ... Evidence from Philadelphia, PA," published in the journal, ... longstanding principle, particularly in urban planning, that you don,t ...
Cached Biology News:Appetite genes are key to better diets for poultry, study shows 2Study finds strong genetic component to childhood obesity 2Urban vegetation deters crime in Philadelphia 2
(Date:7/10/2014)... 10, 2014  Franciscan St. Anthony Health-Crown ... for respiratory monitoring outside the operating room, ... in embracing state-of-the-art patient safety technology. ... breathing and can alert medical caregivers when ... amount of carbon dioxide the patient is ...
(Date:7/10/2014)... OAKS, Calif., July 10, 2014   Ceres, Inc ... and seed company, announced today financial results for the ... update on its business. Ceres reported that ... in product performance this growing season in Brazil, which ... affected the company,s sorghum evaluation areas for part of ...
(Date:7/10/2014)... extremely challenging because there are many genetic variants that ... Now investigators reporting in the July 3rd issue of ... describe a strategy that may help reveal how such ... environmental exposures to affect the development of the nervous ... predispose individuals to schizophrenia. , The work takes ...
(Date:7/10/2014)... the University of Illinois at Urbana-Champaign provides new ... of spin and heat at the nanoscale, and ... for data storage and information processing. , ... momentum. In a typical charge current, electrons, spin-angular-momentum ... explained David Cahill, a professor of materials science ...
Breaking Biology Technology:Franciscan St. Anthony Health-Crown Point Underscores Patient Safety Commitment Through Expanded Use of Capnography 2Ceres Announces Fiscal Third Quarter 2014 Financial Results 2Ceres Announces Fiscal Third Quarter 2014 Financial Results 3Ceres Announces Fiscal Third Quarter 2014 Financial Results 4Ceres Announces Fiscal Third Quarter 2014 Financial Results 5Ceres Announces Fiscal Third Quarter 2014 Financial Results 6Ceres Announces Fiscal Third Quarter 2014 Financial Results 7Ceres Announces Fiscal Third Quarter 2014 Financial Results 8Ceres Announces Fiscal Third Quarter 2014 Financial Results 9New strategy could uncover genes at the root of psychiatric illnesses 2University of Illinois study advances limits for ultrafast nano-devices 2
... Companies Also Sign Manufacturing and Distribution Agreement, ... 15 Ranbaxy,Pharmaceuticals Inc. (RPI), a wholly ... today that it has reached several,agreements with ... capsules. The third agreement pertains to Omeprazole ...
... April 15 Arbios Systems, Inc.,(OTC Bulletin Board: ... authorization process in the European Union to pursue ... has engaged the British,Standards Institute (BSI), one of ... Company in its effort to obtain a CE ...
... Inc.,today announced the appointment of Fisher HealthCare as the ... the Hitachi, Hitachi,Roche P-Modular and Olympus chemistry analyzers to ... cleared by the U.S.,Food & Drug Administration (FDA) enabling ... The PLAC Test is the only blood test ...
Cached Biology Technology:Ranbaxy and AstraZeneca Reach Agreement in Esomeprazole Patent Litigation 2Ranbaxy and AstraZeneca Reach Agreement in Esomeprazole Patent Litigation 3Arbios Commences Process to Seek European Marketing Approval for SEPET(TM) 2Arbios Commences Process to Seek European Marketing Approval for SEPET(TM) 3Arbios Commences Process to Seek European Marketing Approval for SEPET(TM) 4diaDexus Selects Fisher HealthCare to Sell New Automated PLAC(R) Test 2diaDexus Selects Fisher HealthCare to Sell New Automated PLAC(R) Test 3
... using advanced automated high throughput microplate processing equipment that dispenses ... accommodate virtually any lot size of the following formats (with ... 8 and 12 well strips, ... 384 well microplate, 1536 ...
... are based on well-established periodate chemistry, ... and reproducible. This kit contains all ... or antibody, including ready-to-use buffers and ... HRP is supplied ready-to-use and requires ...
... Acridinium NHS ester can be ... nucleic acids. The covalently bound ... chemiluminescence in the presence of ... proteins can be used as ...
... hold up to 6 strain chambers with precise ... use design ensures that cells grow over long ... compression. This unit allows you to control the ... 64 unique strain settings. The instrument fits in ...
Biology Products: