Navigation Links
Stanford engineers monitor heart health using paper-thin flexible 'skin'
Date:5/16/2013

Most of us don't ponder our pulses outside of the gym. But doctors use the human pulse as a diagnostic tool to monitor heart health.

Zhenan Bao, a professor of chemical engineering at Stanford, has developed a heart monitor thinner than a dollar bill and no wider than a postage stamp. The flexible skin-like monitor, worn under an adhesive bandage on the wrist, is sensitive enough to help doctors detect stiff arteries and cardiovascular problems.

The devices could one day be used to continuously track heart health and provide doctors a safer method of measuring a key vital sign for newborn and other high-risk surgery patients.

"The pulse is related to the condition of the artery and the condition of the heart," said Bao, whose lab develops artificial skin-like materials. "The better the sensor, the better doctors can catch problems before they develop."

Your pulse

To find your pulse, press your index and middle finger into the underside of your opposite wrist. You should feel the steady rhythm of your heart as it pumps blood through your veins.

Each beat you feel is actually made up of two distinct peaks, even though you can't tell them apart with just your fingers. The first, larger peak is from your heart pumping out blood. Shortly after a heartbeat, your lower body sends a reflecting wave back to your artery system, creating a smaller second peak.

The relative sizes of these two peaks can be used by medical experts to measure your heart's health.

"You can use the ratio of the two peaks to determine the stiffness of the artery, for example," said Gregor Schwartz, a post-doctoral fellow and a physicist for the project. "If there is a change in the heart's condition, the wave pattern will change. Fortunately, when I tested this on myself, my heart looked fine."

Petite pyramids

To make the heart monitor both sensitive and small, Bao's team uses a thin middle la
'/>"/>

Contact: Bjorn Carey
bccarey@stanford.edu
650-725-1944
Stanford University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Stanford scientists develop gene therapy approach to grow blood vessels in ischemic limbs
2. Keck award enables Carnegie Mellon and Stanford to dramatically expand crowdsourced RNA design
3. Climate change may create price volatility in the corn market, say Stanford and Purdue researchers
4. Stanford and MIT scientists win Perl-UNC Neuroscience prize
5. Americas clean energy policies need a reality check, say Stanford researchers
6. Support for climate change action drops, Stanford poll finds
7. Stanford scientists document fragile land-sea ecological chain
8. Stanford researchers help predict the oceans of the future with a mini-lab
9. Stanford marine biologist Barbara Block wins Rolex Award for Enterprise
10. Stanford scientists find molecule to starve lung cancer and improve ventilator recovery
11. Stanford researchers calculate global health impacts of the Fukushima nuclear disaster
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/16/2014)... respiratory tract infections and worldwide claims the lives ... and Ghent University have succeeded in developing a ... infection. , Xavier Saelens (VIB/UGent): "We discovered ... for the development of a novel approach to ... in numerous small children and elderly people." , ...
(Date:10/15/2014)... to assess the pandemic risk from strains of influenza ... not allow ourselves to become complacent that the most ... of scientists. , Influenza pandemics arise when a new ... develop widespread immunity – spreads in the human population. ... 100 years, the worst of which – the 1918 ...
(Date:10/15/2014)... increased resistance to bacterial pneumonia in female mice to ... , Females are naturally more resistant to respiratory infections ... shown that increased resistance to bacterial pneumonia in female ... 3 (NOS3). They also show that this enzyme is ... hormone estrogen. , The team, lead by Professor Lester ...
Breaking Biology News(10 mins):New perspectives for development of an RSV vaccine 2Scientists 'must not become complacent' when assessing pandemic threat from flu viruses 2
... linking prostate cancer to an obscure retrovirus derived from ... a forensic analysis of tissue samples and lab experiments ... confirmed. The connection, which scientists have questioned repeatedly ... than six years ago, when the telltale signature of ...
... wildlife ecologist Aldo Leopold was a meticulous taker of field ... at his Sauk County shack in Depression-era Wisconsin, Leopold routinely ... the first pre-dawn calls of the indigo bunting or robin, ... he heard, when he heard them, and details such as ...
... Md. (September 18, 2012)Propelled by rapid growth in the ... the American Physiological Society (APS; www.the-APS.org ), announced ... its editorial policy. The journal will continue to ... will dramatically increase the scope of papers accepted to ...
Cached Biology News:New study confirms erroneous link between XMRV and prostate cancer-contamination was the cause 2New study confirms erroneous link between XMRV and prostate cancer-contamination was the cause 3New study confirms erroneous link between XMRV and prostate cancer-contamination was the cause 4Aldo Leopold's field notes score a lost 'soundscape' 2Aldo Leopold's field notes score a lost 'soundscape' 3Physiological Genomics journal announces a major restructuring 2Physiological Genomics journal announces a major restructuring 3Physiological Genomics journal announces a major restructuring 4Physiological Genomics journal announces a major restructuring 5
(Date:10/22/2014)... (PRWEB) October 21, 2014 The ... the inorganic refrigerants market in Americas with analysis ... TOC of the Americas Inorganic Refrigerants Market report, ... provided. This also provides a glimpse of the ... is supported by various tables and figures. ...
(Date:10/22/2014)... WriteResult, LLC – a premier provider of ... a team of researchers from Yale University’s School of ... to provide electronic questionnaire data collection through use of ... in May, aims to evaluate the impact of a ... and participation in urban agriculture to impact their consumption ...
(Date:10/22/2014)... According to new market research ... (Consulting, Integration, Deployment & Support), by Service Model ... Private, Others (Hybrid & Community)) - Global Forecast ... the Cloud Professional Services Market into various sub-segments ... It also identifies the drivers and restraints for ...
(Date:10/22/2014)... , Oct. 22, 2014 Research ... "Organic Electronics Market by Material, by Application, Geography - ... to their offering. Organic electronics, also ... branch of material science which deals with small conductive ... organic because small molecules and polymers are carbon based, ...
Breaking Biology Technology:The Americas Inorganic Refrigerants Market is estimated to grow to $71.6 million by 2018 - New Report by MicroMarket Monitor 2The Americas Inorganic Refrigerants Market is estimated to grow to $71.6 million by 2018 - New Report by MicroMarket Monitor 3myPROpad™ Topic of Panel Discussion at the Yale Food Systems Symposium 2myPROpad™ Topic of Panel Discussion at the Yale Food Systems Symposium 3Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 2Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 3Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 4Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 5Global Organic Electronics (Semiconductor, Conductive, Dielectric and Substrate) Market - Analysis and Forecast (2014 - 2020) 2Global Organic Electronics (Semiconductor, Conductive, Dielectric and Substrate) Market - Analysis and Forecast (2014 - 2020) 3
... Sept. 22, 2011 PrimeraDx today announced that Albert Luderer ... President and CEO Matthew McManus commented:  "We are excited ...  We have just launched the ICE Plex System, which ... high multiplex, multi-modal qPCR, and Al brings many years of ...
... A team of researchers from Roche ( SIX: RO, ... and Early Development and Roche NimbleGen, reported inGenome Research (1) ... the cynomolgus monkey ( Macaca fascicularis ) and developed a ... in preclinical drug safety research. The cynomolgus macaque ...
... a rain, the cupped leaf of a pitcher plant becomes ... ants, spiders, and even little frogs. One by one, they ... a group of applied scientists at Harvard have created a ... blood and oil, and does so even under harsh conditions ...
Cached Biology Technology:PrimeraDx Appoints Albert A. Luderer to its Board of Directors 2Roche Researchers Sequence Complete Genome of Cynomolgus Monkey and Develop Novel Gene Expression Microarray for Drug Safety Assessment 2Roche Researchers Sequence Complete Genome of Cynomolgus Monkey and Develop Novel Gene Expression Microarray for Drug Safety Assessment 3Roche Researchers Sequence Complete Genome of Cynomolgus Monkey and Develop Novel Gene Expression Microarray for Drug Safety Assessment 4Slippery slope:Researchers take advice from a carnivorous plant 2Slippery slope:Researchers take advice from a carnivorous plant 3
Ca2+ Channel Ca gamma 2 Purified Anti-Mouse, Anti-Rat, Anti-Human clone Polyclonal, Isotype Rabbit Ig, 50 µl Consult technical datasheet for details....
Rabbit polyclonal antibody to NCOA2 [Agarose Immobilized]...
Monocarboxylate (lactate) transporter 2...
Mouse Anti-Human Kallikrein 2 (Hk2)...
Biology Products: