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 |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 4 )

Related News Stories - (" Medical ")

Sleeep PRO Earplug For Maximum Rest
'Merton... placed the electrodes of the sleep-inducer on his forehead.' - Arthur C. Clarke, 1963.

You'll Regrow That Limb, One Day
'... forcing the energy transfer which allowed him to regrow his lost fingers.' - Frank Herbert, 1972.

First 3D Printed Human Corneas From Stem Cells
Just what we need! Lots of spare parts.

Nanorobots Roam Your Bloodstream, Cleaning It
Too bad they won't have lasers, though...

 

Google
  Web TechNovelgy.com   

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.

 

 

 

 

 

Current News

Jaguar I-Pace Audible Vehicle Alert System For EVs
'Of course not a vehicle moved by means of internal explosions of a derivative of rock oil...'

Autonomous 'Fiberbots' Weave Large Structures
'It extrudes material like a spider.'

Birds Aren't Real - Wake Up, California! (With Bird Watching Guide)
'When he had first built them, they had been crude indeed, flying mechanisms with little more than a reflex-response unit.'

Self-Healing Material Pulls Carbon Out Of The Air
'... could seal the punctures.'

IRL Glasses Block Screens, Limit Vision To Real Life
'If you couldn't see the ads, how would you know what was fashionable?'

Testing The Single-Person Spacecraft
'...the lower part of the suit was simply a rigid cylinder.'

Shapeshifting Materials Transform By Light
'Its lines wavered, flowed, and then painfully reformed.'

Fully Automated Farm Iron Ox Hydroponics
'Had these machines in some incredible fashion been provided with brains?'

BrainNet Social Network Of Brains
'I used my implant to tell MILLIE what we wanted and she took care of it'

Phil Nuyttnn's City Under The Sea
'Under the lower roof there was no water, but a clear and luminous atmosphere...'

IONITY Opens First 10 Fast-Charging Stations
'Recharge the batteries... in almost every town and village...'

Superstrong Multilayer Metal-Graphene Composite Material
Negligible increase in weight increased material strength by hundreds of times.

Deepfakes Imperil Democracy (George Orwell, Right Again)
'All history was a palimpsest, scraped clean and reinscribed exactly as often as was necessary.'

String Art Courtesy Of Robot Artist
The number of different ways to span a thread between a larger number of hooks is astronomical.

Still Wondering If You'd Work For A Robot Boss?
'This is all coming to you courtesy of the simstim unit wired into your deck, of course.'

World's First Autonomous Tram In Germany
What's it like for autonomous trams when they're turned off at night?

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.