Underpant's Amperometric Biosensors Don't Chafe SF Fans
Nifty thick-film textile-based amperometric biosensors may sneak into your underpants thanks to a new process for printing electrochemical sensors directly into elastic bands like those used in underwear.
Image of the screen-printed carbon electrodes
on the underwear (MERONA Ultimate Briefs brand)
(background) along with the morphology of a single
electrode (right inset) and linear-scan voltammetric response
for increasing NADH concentrations over the
0–100 M range (left inset).
As the focus on healthcare shifts from centralized hospital-based treatment to home-based management, there are growing needs for developing reliable, wearable healthcare monitoring systems.1,2 Such on-body (non-invasive or minimally-invasive) physiological monitoring devices are also of considerable interest for defense or sport applications. Integrating sensors and biosensors directly into clothing should thus have major advantages for future healthcare and soldier monitoring systems...
We have illustrated the direct screen-printing of amperometric carbon sensors onto clothing and the favorable electrochemical behavior of such textile-based sensors. Convenient measurements of hydrogen peroxide and NADH have been documented. Mechanical stress studies, relevant to the wearer's daily activity, have indicated that textile-based printed sensors survive large deformations. Both bending and stretching of the textile substrate have minimal detrimental effect upon the electrochemical measurements, and in some instances (e.g., for measurements of hydrogen peroxide) even lead to enhanced signals...
Future efforts in this direction will also include the incorporation of a chemically-selective layer (e.g., permselective coating or enzyme layer) and assessment of the role of the clothing deformation upon the performance and stability of such layers towards textile-based healthcare and soldier monitoring systems. Particularly attractive will be dehydrogenase- and oxidase-based enzyme sensors for ethanol and lactate, respectively, in connection with monitoring alcohol consumption in drivers or performance/stress of soldiers/athletes. Unlike glucose sweat levels, the concentration of alcohol or lactate in sweat has a significant clinical relevance. The large surface area of clothing could be used for integrating the necessary supporting electronic, display, power and communication functions (without external devices) and hence for communicating relevant health parameters. While clothing-integrated electrochemical sensors hold considerable promise for future healthcare, military or sport applications, such non-invasive textile-based sensing requires proper attention to key challenges of sample delivery to the electrode surface and of sensor calibration and interconnection.
SF fans are already used to the idea of underwear and clothing that monitors the physical characteristics of the wearer. In his 1988 novel Wetware, Rudy Rucker introduces the heartshirt:
Della's first present was an imipolex sweatshirt called a heartshirt…The heartshirt was an even dark blue, except for a few staticky red spots drifting about.
"It can feel your heartbeat … look." Sure enough there was a big red spot on the plastic shirt just over her heart..."
(Read more about the heartshirt)
From Thick-film textile-based amperometric sensors and biosensors via MedGadget.
Scroll down for more stories in the same category. (Story submitted 4/21/2010)
Follow this kind of news @Technovelgy.
| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
you like to contribute a story tip?
Get the URL of the story, and the related sf author, and add
Comment/Join discussion ( 4 )
Related News Stories -
New Brain Scanner Lets You Move Around
'In Bob Arctor's living room his thousand dollar custom-quality cephscope crafted by Altec...' - Philip K. Dick, 1977.
Ultrathin Brain Needle Developed At MIT
Putting drugs into a selected cubic millimeter within the living brain.
NASA's 'Armstrong' Soft Wearable Upper Extremity Garment
'Exact same articulation as your shoulder joint, and it holds your muscles out of the way...' - Samuel R. Delany, 1966.
iFlytek Doctor Robot First To Pass Medical Exams
No problem, we'll just use the autodoc.
Technovelgy (that's tech-novel-gee!)
is devoted to the creative science inventions and ideas of sf authors. Look for
the Invention Category that interests
you, the Glossary, the Invention
Timeline, or see what's New.
IBM's Grain Of Sand Computer
'Our ancestors... thought to make the very sand beneath their feet intelligent...'
Liquid Metal Shape-Changing 'Soft Robotics'
'A mimetic poly-alloy... 'What the hell does that mean?''
The Hammock Caravan And Italo Calvino's Octavia
'Now I will tell you how Octavia, the spider-web city, is made.'
Super-Resolution Microscopy Provides '4D' Views
View the magnified interior of living cells.
Have I Seen The Tesla Roadster Story Before?
'Only it wasn't a vessel. It was an automobile...'
Watch 'Do You Trust This Computer' For Free Today
Thanks for making this available, Elon.
Self-Driving Car Ticketed
This just missed making my day.
Elon Musk Tweets Versions Of Clarke's Operation Cleanup
'Fortunately, the old orbital forts were superbly equipped for this task.'
Burner Generates Temporary Phone Numbers
'Interesting phone system he's got, by the way...'
Walmart’s Autonomous Robot Bees
Everyone loves bees.
EA Created AI That Taught Itself To Play Battlefield
Harmless fun for computer scientists.
Is Teleportation A Death Sentence?
'A long trail of dead, he thought, left across the stars...'
New Brain Scanner Lets You Move Around
'In Bob Arctor's living room his thousand dollar custom-quality cephscope crafted by Altec...'
Can An Entire Brain Be Simulated In A Computer?
'The miles of relays and photocells had given way to the spongy globe of platinum iridium about the size of the human brain.'
Physicists Try To Turn Light Into Matter
If E=mc squared, then... m=E/c squared!
Save Your Brain's Connectome, Upload Yourself Elsewhere
'You've got remote storage. How regular is the update?'
More SF in the News Stories
More Beyond Technovelgy science news stories