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:12/17/2014)... , Dec. 15, 2014 Research and Markets ... the "Samsung Galaxy S5 - Home Button Synaptics ... http://photos.prnewswire.com/prnh/20130307/600769 ... iPhone 5S, Samsung introduces for the first time a ...
(Date:12/17/2014)... NEW YORK , Dec. 15, 2014  HITLAB SM ... Practices (GCP) audit to confirm its adherence to current ... enables HITLAB to conduct regulated smart device and smart ... safety and research quality. "HITLAB is determined ...
(Date:12/17/2014)... Markets ( http://www.researchandmarkets.com/research/9zq33j/global_chemical ) has announced the ... report to their offering. ... in this market is the increasing demand for medical ... of patient data for quick and correct diagnosis during ...
Breaking Biology News(10 mins):Samsung Galaxy S5 - Home Button Synaptics Fingerprint Sensor Technology Analysis 2HITLAB Completes GCP Audit for FDA Smart Device & App Compliance 2Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2
... to be essential in helping chemotherapy kill cancer cells, may ... patients, scientists at the Georgia Institute of Technology and the ... tumors had mutations in the gene p53 were still alive ... 30 percent survival rate. The findings raise the possibility of ...
... and tasty, but don’t count on them to ... of Cancer Epidemiology, Biomarkers & Prevention, researchers based ... Cancer Research Center report that lycopene, an antioxidant ... prostate cancer. In fact, the researchers noted ...
... in the prestigious international journal, the British Journal of ... be explained by increases in clinical reasons for caesareans ... more likely due to societal factors. , The research ... 1984 and 2003 (more than 430,000 births) and ...
Cached Biology News:Gene thought to assist chemo may help cancer thrive 2Gene thought to assist chemo may help cancer thrive 3No magic tomato? Study breaks link between lycopene and prostate cancer prevention 2Study shows dramatic increase in Caesarean sections 2
(Date:1/22/2015)... 22, 2015 Eckert & Ziegler Vitalea ... (AMS) services to the pharmaceutical and biotech industry, has ... company in the position of Director of Science & ... and valuable experience in drug metabolism and bioanalysis to ...
(Date:1/22/2015)... GEA Niro Soavi the leader in high ... PandaPLUS 2000, which is ideal for new applications for ... disruption . This compact laboratory homogenizer is the perfect ... food additives and ingredients as well as for the ...
(Date:1/22/2015)... (PRWEB) January 22, 2015 The laboratory ... that has witnessed a number of technological advancements due ... regulatory requirements, growing need to integrate healthcare systems, and ... ease challenges in system integration. Key players in the ...
(Date:1/22/2015)... Pipette.com has added the Eppendorf Centrifuge ... of Eppendorf products. , The Eppendorf Centrifuge 5424/5424 R ... R and receive the following:, ,     Free ... Eppendorf Reference 2 ,     3 Free boxes ...
Breaking Biology Technology:Eckert & Ziegler Vitalea Science appoints Mark Seymour, PhD as Director of Science & Technology 2Eckert & Ziegler Vitalea Science appoints Mark Seymour, PhD as Director of Science & Technology 3GEA Niro Soavi Announces the PandaPLUS 2000 Homogenizer for Processing New Applications for Nanoemulsions and Cell Disruption 2Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 2Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 3Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 4Eppendorf Announces Promotional Bundle Which Includes: Eppendorf Centrifuge 5424, 3-Pack of Pipettes, and Tips - Available Now at Pipette.com 2
... 7 /PRNewswire-FirstCall/ - Dragon Pharmaceutical Inc. ("Dragon" or the ... receipt of preliminary proxies, the Company believes that it has ... ("Merger") by and among Dragon, Chief Respect Limited, Datong Investment ... Yanlin Han . The Merger must be approved by holders ...
... , , ... a 25 percent replacement for petroleum oil more than doubles rubber,s stretchability and reduces its environmental ... Ford,s ... automotive parts such as deflector shields and baffles, radiator deflector shields, cupholder inserts and floor mats ...
... DATATRAK International, Inc. (OTCQX: DATA), a technology and services ... industry, today announced that it privately placed 357,857 common shares ... with certain members of its Board of Directors and management ... are restricted securities and are subject to the restrictions on ...
Cached Biology Technology:Dragon Pharma announces receipt of preliminary proxies to approve merger 2Dragon Pharma announces receipt of preliminary proxies to approve merger 3Ford Pioneers Patent-Pending Use of Eco-Friendly Soy Oil in Rubber Automotive Parts 2Ford Pioneers Patent-Pending Use of Eco-Friendly Soy Oil in Rubber Automotive Parts 3Ford Pioneers Patent-Pending Use of Eco-Friendly Soy Oil in Rubber Automotive Parts 4DATATRAK Completes Sale of 357,857 Common Shares to Directors and Management 2DATATRAK Completes Sale of 357,857 Common Shares to Directors and Management 3
... reagent (F-2902) was developed in collaboration with ... measurement of the kinetics of Fc receptor ... directly in the phagovacuole.2 The Fc OxyBURST ... albumin (BSA) that has been covalently linked ...
Because it is manufactured at our ISO 9001–certified facilities in Eugene, Oregon, we can guarantee that FluoroPure grade propidium iodide is greater than or equal to 98% pure by HPLC....
MOUSE ANTI RABBIT T LYMPHOCTYES Immunogen: Rabbit Thymocytes...
TACS Apoptotic DNA Laddering Kits are used to assay cells and tissues for apoptosis by...
Biology Products: