'Cellborg' Humidity Gauge First Bacterial Cyborg

Chemists at the University of Nebraska have created a humidity gauge by actually 'assimilating' living bacteria into an electronic circuit. This appears to be the first instance in which a living cell becomes a fixed part of the structure of an electronic device.


('Cellborg' - first bacterial cyborg)

Ravi Saraf and student Vikas Berry made their device from a standard silicon chip inlaid with gold electrodes. First they added a coating of Bacillus cereus bacteria, which clustered together to form bridges between the electrodes. Then they washed the chip with a solution of gold particles, each of which measured about 30 nanometres across and was covered with peptides to help it stick to the bacteria.

A rise in moisture levels causes the bacteria to swell slightly, which increases the distance between neighbouring nanoparticles by up to 0.2 nanometres. This tiny separation makes it harder for electrons to hop from one particle to the next, which reduces the current flowing across the chip. A change from 20% to 0% humidity increased the current flowing through the device by 40 times, whereas the current in a solely electronic device decreases by just ten times.

The bacteria must stay alive during their assimilation so that they do not leak any internal fluids and lose their shape. According to Saraf, the bacteria can survive for about two days without nutrients. However, the device continues to work even after the bacteria die; the zombie 'borg-teria' continue to work for as long as a month after death.


(Hugh - the Borg drone)

Science fiction fans are well aware of the 'cellborgs' namesake - the Borg collective of cyborgs (cybernetic organisms) who stop at nothing in their relentless pursuit of assimilating other intelligent organisms.

In the series (and associated films), captured human beings are outfitted with mechanical and electrical parts that will make them serviceful to the collective.

Saraf speculates that similar devices could one day be made that take greater advantage of living organisms, perhaps even using bacteria's energy systems to power electrical devices. But that will involve going one step further: using a physiological rather than physical response of a bacteria. "One still needs to demonstrate that an electronic coupling between the biology of the microorganism and a nanodevice is possible," he adds.

Read Cyborg cells sense humidity.

Scroll down for more stories in the same category. (Story submitted 10/18/2005)

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 ( 3 )

Related News Stories - (" Medical ")

EVE Artificial Womb For Lambs (For Now)
'In the crimson darkness, stewing warm on their cushion of peritoneum and gorged with blood-surrogate and hormones...' - Aldous Huxley, 1932.

Bees Royal Jelly Helps Wounds Heal Faster
'An alien drug... used by an insect race.' - Clifford Simak, 1961.

3D Printed Bionic Chinese Skin
Designer skin for everyone!

Drug Creates Real Melanin Tan
I've used them all my life...

 

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

Will A Steel Umbrella Stop Russia?
'Everyone was aware that the damned platform was wandering around in its own orbit...'

EVE Artificial Womb For Lambs (For Now)
'In the crimson darkness, stewing warm on their cushion of peritoneum and gorged with blood-surrogate and hormones...'

TIKAD Armed Drone Ready To Fight
'Each a television eye and a sonic stunner...'

Bees Royal Jelly Helps Wounds Heal Faster
'An alien drug... used by an insect race.'

NASA Wants To Make Oxygen On Mars
'They plop down on the Red and if the dust is deep enough ... they burrow in...'

Hackers Insert Malware Into DNA
'They tied the memory to the bloodline and that was their record!'

X2-VelociRoACH Cooperates To Launch Tiny Drones
Little robots cooperating can do big tasks. Eventually.

'Do Not Pay' Chatbots To Replace Law Firm Associates?
'I want my lawyer program.'

MULTI Model Of Star Trek Turbolift
Cool prototype video!

A Look Into The Future Of Spacecraft!
Ever wonder how you look when you enter a new part of a spacecraft?

An 'Ethical Black Box' For Robots?
Explored by science fiction authors.

Dadbot Digital Immortality
'A hardwired ROM cassette replicating a dead man's skills...'

Should We Permit Computers To Create Their Own Language?
'Talk Between Robots radio...'

Breakthrough Starshot Sprites Yearn For Alpha Centauri
'Whoever launched it fired a laser cannon...'

Kino Project Roaming Personal Fashion Robots
'Most of the crew have the tiny imp ride on their shoulder...'

Astronaut Exercise Video, Predicted By SF Writers
'Joe got out the gravity-simulator harnesses.'

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.