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 -
Skin Electronics Can Show Electrocardiogram
'... the young men in the streets who applied polyimde OLED body film to their bared shoulders.' - Chen Qiufan, 2019.
Neurodevices For Consumers? Neuroethicists (And Philip K Dick) Say 'Caveat Emptor'
'They tried to use it today and it wouldn't work. No colors and no ceph patterns, neither one...' - Philip K. Dick, 1977.
BrainEx Restores Some Activity To Severed Pig Head
'... they placed the brain in a special solution, having all the properties of Nursing the brain cells.' - Edmond Hamilton, 1929.
Purdue Pharma Ready To Profit From OxyContin Use Or Addiction Recovery
'It may be organic damage. It may be permanent. Time'll tell, and only after you are off Substance D for a long while.' - Philip K. Dick, 1977.
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.
China Deploys Robot Traffic Police
'The robot came up smooth and fast as a rocket...'
Better Than Dune Chromoplastic? This Guy Might Have Done It
'But when Old Father Sun departs, the chromoplastic reverts to transparency in the dark.'
Gather, An AI Warehouse Inventory Drone Startup
'It extended three of its tiny arms sideways to lock onto the registration pins...'
China's Artificial Intelligence-Enhanced Education
'The grey gas not only cut off his vision, but also his other senses...'
Orbital Manufacturer 'Made in Space' Gets $73 Million NASA Contract
'Mass-produced in the orbiting factories...'
Soli Gesture Tech Will Be In Google Pixel 4
'I enjoy watching this way, but - He waved his hand and the circuit switched abruptly.'
Uber Eats Pairs Cars With Drones
Fresh grub? Let's hope they aren't delivering grubs.
Space-Based Solar Power Roundup
SF writers popularized and elaborated on this idea a generation before the first patents were filed.
Lost Language Meanings Found By Machine Learning
'The autopilot would need data before it could begin a translation...'
'Aerogel' Sheets For Martian Gardens
'Sealed to the ground along all the sides, Honey, he growled...'
France's 'Red Team' Of Science Fiction Authors
'They're the only experts we have.'
Dim The Sun With Stratospheric Controlled Perturbation Experiment
'Those twin volcanoes; d'ye see them, Mr. Renner?'
Mashambas Skyscraper Farm Design Wins
'...a towering eighty-story structure like the office In-and Out baskets stacked up to the sky.'
Self-Driving Tractors From China Plan Ahead
'Machines that seemingly with full consciousness walked out into the fields to do their daily work.'
Jet-Powered Hoverboard Works!
L'audace, l'audace, toujours l'audace!
Nobe 3-Wheel Electric Vehicle Parking Like I, Robot
Spidercar, Spidercar, does whatever a spidercar does.
More SF in the News Stories
More Beyond Technovelgy science news stories