Graphene Cytobot - Cyborg Bacterial Spores May Help Astronauts

Cyborg bacterial spores festooned with quantum dots - cytobots - leverage their extreme sensitivity to changes in humidity. It's a bacterial spore with quantum dots on its cell membrane that generate an electrical charge when the cell expands and shrinks depending on the humidity in the surrounding environment. The device may be able to detect leaks in the International Space Station, among other applications.


(Cyborg bacterial spores with quantum dots - cytobots)

At the tiny scale of a single cell, measuring movements isn’t easy. So the researchers wanted to find a way to get the clearest signal about a particular environmental condition—in this case, humidity—based on how much a cell moves in response to it. The researchers chose a particularly sensitive kind of cell, a spore of the bacterium Bacillus, and placed two quantum dots on its cell membrane. Quantum dots are tiny conductors that can efficiently transfer signals from one medium to another.

The researchers attached electrodes to either end of the spore and measured the dots’ conductivity; when the humidity was lower, the spore would contract and bring the quantum dots closer, which would create a spike in the conductivity reading. Each time the researchers changed the humidity around the spore, they saw a clear change in the readings, with a response rate 10 times faster than the most advanced water-absorbing sensors, they said.

Such rapid and sensitive humidity readings could be useful for conditions where changes in humidity could spell disaster, like to detect leaks in space.

Robert Heinlein thought about this problem. In his 1948 short story Gentlemen, Be Seated, he described life in a lunar habitat. And the inevitable air leaks.

There were perhaps a dozen bladder-like objects in the tunnel, the size and shape of toy balloons. They seemed to displace exactly their own weight of air; they floated without displaying much tendency to rise or settle. Konski batted one out of his way and answered me before I could ask.

"This piece of tunnel was pressurized today," he told me.

"These tag-alongs search out stray leaks. They're sticky inside. They get sucked up against a leak, break, and the goo gets sucked in, freezes and seals the leak."
(Read more about Heinlein's tag-alongs)

As far as I know, the first sf writer to combine electronic and tiny portions of living systems to create new products was Philip K. Dick.

As far as every day consumer products are concerned, you can't beat the Ampek F-a2 Recording System:

Nat Flieger reflexively poured water into a cup and fed the living protoplasm incorporated into the Ampek F-a2 recording system which he kept in his office; the Ganymedean life form did not experience pain and had not yet objected to being made over into a portion of an electronic system... neurologically it was primitive, but as an auditory receptor it was unexcelled.

(Read more about Dick's Ampek F-a2 Recording System)

Readers in their second decade of enjoying Technovelgy.com may recall a very similar idea from 2005 - 'Cellborg' Humidity Gauge First Bacterial Cyborg .

Via PopSci.

Scroll down for more stories in the same category. (Story submitted 3/15/2015)

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 ( 0 )

Related News Stories - (" Engineering ")

Wear Your Self-Powered Generator
'It's basically a micro-sandwich...' - Frank Herbert, 1965.

Auto-Focus Smart Glasses Have Liquid Lenses
'Hufhuf oil held in static tension by an enclosing force field within a viewing tube...' - Frank Herbert, 1965.

Google Perfects 'Blade Runner-style' Photo Details
'Pull back... stop... enhance 57-19...' - Blade Runner, 1982.

CloudFisher - Moroccan Fog Farmers Harvest Moisture From The Air
'That moisture trickles down...', Frank Herbert, 1965.

 

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

PassivDom 3D Printed House - What If You Could Live Anywhere?
'The houses are prefabricated units...'

Breakthrough In Manufacture Of Red Blood Cells
This blood's for you!

Caihong Solar-Powered Drone 'Atmospheric Satellite'
'... placed in the wings of a plane to generate power from the light falling on that surface.'

NASA Wants Low Earth Orbit Wifi
'This was the center of Interplanetary Communications.'

Is Genetic Testing At Businesses A Bad Idea?
It's not a topic that fares well in science fiction movies-

Wearable Smart Jacket
He pressed the button in his sleeve communicator and snapped: 'Action stations!'

Store One Bit On One Atom
'...each individual molecule has a meaning.'

Fluorescent Bacteria Fashion
'The racks of gowns itched and quivered, their colors running into blurred pools.'

Keith Laumer's Bolo Autonomous Tanks Right On Schedule
'I cannot lie idle under attack.'

When Computers Develop Their Own Language, Will They Talk To Us?
'The curious absent look of a robot talking on the TBR circuits - the Talk Between Robots radio...'

LipNet Reads Lips - Until Disconnected, That Is
'We'd have to cut his higher brain functions... I'm not sure what [HAL} would think about that.'

Eterni.me - To Skype With The Dead
'Nothing... left of Jeserac but a galaxy of electrons frozen in the heart of a crystal.'

Wearable MRI Is Former Occulus/Facebook Exec's New Project
'Your cephalochromoscope... that you always turn on and play when you get home...'

Ford Stratasys Infinte Build 3D Printer
'He proudly indicated his Buick... Almost as good as the original it was printed from...'

The Space Suit As Personal Spaceship
'Darn clever, these suits...'

Dune Fans! Your God Emperor Is Ready
'If one held a sandtrout in the hand, smoothing it over your skin, it formed a living glove.'

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.