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:9/1/2014)... a life without light. They emit echolocation sounds and use ... obstacles or prey. In their brains, they have a spatial ... researchers at Technische Universitt Mnchen (TUM) has shown for the ... , Closer objects appear larger , ... the number of activated neurons in its brain increases. As ...
(Date:8/31/2014)... highly infectious bacteria C. diff , that causes ... a team at the University of Leicester. , Using ... it is possible to identify the unique ,smell, of ... diagnosis of the condition., What is more, the Leicester ... strains of the disease simply from their smell ...
(Date:8/31/2014)... in Nature Climate Change , suggests that if ... not exceed, the global targets for total greenhouse gas (GHG) ... should all think carefully about the food we choose and ... world is just one of a number of actions that ... ensure there is enough food for all. , As ...
Breaking Biology News(10 mins):Zooming in for a safe flight 2Scientists develop 'electronic nose' for rapid detection of C. diff infection 2Changing global diets is vital to reducing climate change 2Changing global diets is vital to reducing climate change 3Changing global diets is vital to reducing climate change 4
... clear change in salinity has been detected in the ... global rainfall and evaporation cycle., In a paper published ... the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and ... of salinity in the global ocean during the past ...
... scientists has found there has been a massive reduction in ... of Antarctica.,Comparing detailed measurements taken during the Australian Antarctic program,s ... back to 1970, scientists estimate there has been as much ... Antarctic Bottom Water, the cold dense water that drives global ...
... Berlin, Germany, May 21, 2012 IMPACT World+, ... methodology was launched today in Berlin, Germany during the ... Meeting. The event featured the results of this innovative ... experts and researchers from five countries., The production and ...
Cached Biology News:Earth's water cycle intensifying with atmospheric warming 2Latest Southern Ocean research shows continuing deep ocean change 2Latest Southern Ocean research shows continuing deep ocean change 3Launch of IMPACT World+ 2
(Date:8/28/2014)... A new research platform uses a ... tiny structures undergoing stress and heating, an ... designs for microelectronics and batteries., This new ... about how heating and the surface stress ... Researchers have discussed the merits of surface-stress ...
(Date:8/28/2014)... 2014  Next month, executives from clinical trial marketing firm ... beginning with Patient-Centered Clinical Trials 2014 , to be ... , September 4-5. Patient recruitment experts Bonnie A. ... will share insights on the benefits of employing an ... – from media to mobile apps – can be used ...
(Date:8/28/2014)... work by a Florida State University research team has ... your temperature, emit white light, and convert photon energy ... like a butterfly. , Biwu Ma, associate professor in ... FAMU-FSU College of Engineering, created the molecule in a ... discover that his creation has many other unique capabilities. ...
(Date:8/28/2014)... Boston, MA (PRWEB) August 28, 2014 ... of wholesale construction materials, selected SoundConnect ... of their cloud based audio and web conferencing ... configured to support PrimeSource’s employees’ needs. SoundConnect ... technologies. , PrimeSource Building Products will be ...
Breaking Biology Technology:New analytical technology reveals 'nanomechanical' surface traits 2New analytical technology reveals 'nanomechanical' surface traits 3BBK Worldwide Leads Sessions at Key September Events 2Novel 'butterfly' molecule could build new sensors, photoenergy conversion devices 2PrimeSource Chooses SoundConnect as Collaboration Provider 2
... accurately while minimizing ... 6 During his annual,physical check-up in March, David Kelver,s ... the right one looked a bit swollen. The,doctor concluded, however, ... own, and sent him home. Several months later, Kelver, a ...
... showing that Microsoft SQL Server ... 1 petabyte., REDMOND, Wash., Nov. 6 ... management and business,intelligence platform, Microsoft SQL Server 2008, ... scale new heights in data warehousing,and transaction processing., ...
... at Rodman & Renshaw,10th Annual Healthcare Conference" issued on ... over PR Newswire, we are advised by a,representative of ... the first paragraph. Complete, corrected release follows:, , ... the development of microRNA-based diagnostics, announced today it,will present ...
Cached Biology Technology:Cancer Care of Western New York Becomes First Center in Western New York to Treat Cancer with RapidArc(TM) Radiotherapy Technology from Varian Medical Systems 2Cancer Care of Western New York Becomes First Center in Western New York to Treat Cancer with RapidArc(TM) Radiotherapy Technology from Varian Medical Systems 3Cancer Care of Western New York Becomes First Center in Western New York to Treat Cancer with RapidArc(TM) Radiotherapy Technology from Varian Medical Systems 4Could Database Software Help Cure Alzheimer's and Save the Earth? 2Could Database Software Help Cure Alzheimer's and Save the Earth? 3/C O R R E C T I O N -- Rosetta Genomics Ltd/ 2/C O R R E C T I O N -- Rosetta Genomics Ltd/ 3/C O R R E C T I O N -- Rosetta Genomics Ltd/ 4/C O R R E C T I O N -- Rosetta Genomics Ltd/ 5/C O R R E C T I O N -- Rosetta Genomics Ltd/ 6
Mouse monoclonal [6C3] to JAB1 ( Abpromise for all tested applications). entrezGeneID: 10987 SwissProtID: O15386...
Human TGF-beta RIIb Affinity Purified Polyclonal Ab...
Human FGF R2 (alpha isoforms) MAb (Clone 98706)...
dithiothreitol, sulfhydryl reducing agent, C4H10O2S2; MW: 154.24, 97% pure (minimum), CAS No: 27565-41-9, store at -20 C ...
Biology Products: