Diabetes Tattoo Tests For Glucose Levels

A diabetes tattoo might be just the thing to relieve diabetes sufferers of the constant pain of needle sticks. Most monitoring methods require that a blood sample be taken using a needle; researchers have long sought a non-invasive test method.


(Fluorescent polymer microbeads for diabetes tattoo)

Gerard Cote, biomedical engineering professor in the Dwight Look College of Engineering, is testing an experimental system using fluorescent polymer microbeads implanted just under a patient's skin. Glucose levels affect how much light the beads emit, which could be measured with a wristwatch-like monitor.

The experimental microgel beads, injected just under the skin, are too big to enter cells - unlike tattooing, in which cells absorb the pigment. Instead, the beads remain in the spaces between the cells, called the interstitial spaces. Fluid in those spaces contains water and glucose molecules small enough to pass through the PEG and reach the fluorophore-tagged polymers. Cote said the level of glucose in interstitial fluid is related to the blood glucose level that's measured by the traditional needle-stick method.

The dextran molecules bind to the conA molecules. Together, under light from a laser or light-emitting diode, they emit a certain color under fluorescence. However, when glucose enters the picture, it competes with dextran, displacing the dextran molecules and binding to the conA. The fluorescent color changes according to the amount of glucose present.

In preliminary studies, the researchers injected the microbeads under a rat's skin and found that the rat tolerated the implant. The beads did fluoresce under the rat's skin and indicated a change in glucose level.

Active tattoos can be found in various sf works; consider the subdermal microchannels from the 1985 cyberpunk classic Stone Lives by Paul Di Filippo:

June's body is a tracery of lambent lines, like some arcane capillary circuitry in the core of Mao/K'ung Fu-Tzu. Following the current craze, she has had a subdermal pattern of micro-channels implanted. The channels are filled with synthetic luciferase, the biochemical responsible for the glow of fireflies.
(Read more about Di Filippo's Subdermal Microchannels)

A similar idea is used in Nova Swing by M. John Harrison.

Don't miss these unusual tattoo stories:

Via Texas A&M Engineering: Fighting diabetes where It hurts. Thanks to reader KafirCake for the tip on the story.

Scroll down for more stories in the same category. (Story submitted 12/1/2007)

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 ( 1 )

Related News Stories - (" Medical ")

Injectable Magnetic Fluid Slows Bleeding, Aids Magneto
'There's something different about you.'

Vascularized Human Skin 3D Printed
Hey Fishboy! Three days and you're out!

China Accused Of Harvesting Organs From Unwanted Groups
'The death penalty was his immortality, and he would vote the death penalty for any crime at all.' Larry Niven, 1967.

Robothread Robotic Worms Crawling Through Your Brain
Perfect for clot-busting in the human brain. No Raquel Welch and no 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

Extremophile Microbe Loves Space Rocks
'... designed for rooting in the metal make-up of the asteroids for vital elements.'

Magic Mushroom Nose Spray From Silo Wellness
'I don't need help... that's not my diagnosis!'

CAV-X Supercavitating Ammo Deadly Underwater
'...in the midst of this fluid, which is very dense compared with the atmosphere, shots could not go far.'

Space Domes Over-rated? Science Fiction Authors Have Answers
'This was to be roofed over, sealed, and an atmosphere provided...'

Injectable Magnetic Fluid Slows Bleeding, Aids Magneto
'There's something different about you.'

Autonomous Wheelchairs Improve Airport Mobility
'Noiselessly, on rubber-tired wheels, they journeyed down the long aisles...'

HVSD, Kitty Hawk's Electric Plane
Very quiet commuter plane offers VTOL service.

Frictionless Toilet Could Save 140 Billion Liters Of Water
'The bowl was a frictionless surface...'

Viisights AI Hones Video Surveillance
'The math boys worked it out...'

Cybertruck The Solar-Powered Steel Tortoise
'It drew its power from... sunpower screens on its low curved roof.'

Road Noise Charges Electric Cars With Peugeot Piezoelectric Billboard
''... major cities of Earth have free electrical power conveniently processed from their own noise.'

Unsinkable Metal Latest Gates Obsession
'A metal... light as cork.'

M-Blocks 2.0 Self-Assembling Robots
'Faster the cubes moved...'

NASA 'Broomstick' Recalls SciFi Ideas
'The appearance was enough like a giant witch's broom to justify the nickname.'

Orbital Display's Low Earth Orbit Advertisements
'A vast circle of scarlet stars came up into the greenish desert dusk.'

Neuromorphic Computing Hardare
'He had constructed an organ, a brain, of metal, entirely inorganic and lifeless...'

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.