Cheap Pocket-Sized DNA Replicator

DNA replication in a cheap, pocket-sized device is now possible; a prototype created by Nitin Agrawal of Texas A&M University costs just $10.


(Pocket-Sized DNA replicator does PCR for $10)

The system could enable DNA-based tests to be carried out in developing countries, where the cost of full-sized labs is prohibitive, and in the field where portable devices are preferred.

Running a PCR [polymerase chain reaction] requires treating DNA strands, along with chemical materials needed to make new DNA strands, at three different temperatures. The highest temperature (95C) causes two strands of a DNA molecule to separate. The lowest temperature (60C) makes DNA building blocks stick together. Then, holding the temperature in the middle (72C), allows an enzyme to quickly assemble replica DNA strands.

Agrawal's device makes use of a set of three metal rods heated to different temperatures. Convection keeps the liquid containing the DNA to be replicated cycling through the device. Victor Ugaz of Texas A&M University, whose group made the new device, says that "It's similar to how a lava lamp works."

A cheap and simple method of preparing DNA samples is now needed to supply the device, along with DNA analysis equipment that is sufficiently minaturized.

Via NewScientist.

Scroll down for more stories in the same category. (Story submitted 5/22/2007)

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 - (" Biology ")

Amazing 'Hybrid' Solar-Powered Sea Slug Does Photosynthesis
Thank goodness for Star Trek.

Should You Submit Your DNA To A Database?
Consumer DNA services are often inaccurate.

Humans Evolve Deep Diving Abilities
Sounds like '60s sci-fi to me.

Researchers Create Bowls, Coils, Ripples Of Living Tissue
'... biological robots were not living creatures.' - Arthur C. Clarke, 1972.

 

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

Elon Musk Seeks To Create 1941 Heinlein Speedster
'The car surged and lifted, clearing its top by a negligible margin.'

Somnox Sleep Robot - Your Sleepytime Cuddlebot
Science fiction authors are serious about sleep, too.

Real-Life Macau or Ghost In The Shell
Art imitates life imitates art.

Has Climate Change Already Been Solved By Aliens?
'I had explained," said Nessus, "that our civilisation was dying in its own waste heat.'

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

VirtualHome: Teaching Robots To Do Chores Around The House
'Just what did I want Flexible Frank to do? - any work a human being does around a house.'

Messaging Extraterrestrial Intelligence (METI) Workshop
SF writers have thought about this since the 19th century.

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

Galini 3D Printed Sleeping Pod Tiny Houses
'The houses are prefabricated units...'

MIT Boffins Create Psychopath AI On Purpose
There's a lesson in this for neural net AI engineers everywhere.

Skin Electronics 3D Printed
'June's body is a tracery of lambent lines, like some arcane capillary circuitry...'

Artificial Sensory Neurons For Prosthetics, Robots
Great for humans and robots!

China Uses Artificial Intelligence To Grade Student Papers
Looks like the City Fathers are starting to take over China's education system.

Electronic Tongues Will Rule The Kitchen
'Install taste buds in the end of one tentacle...'

Self-Healing Circuits From Carnegie Mellon
'It even had an inter-skin layer of gum that could seal the punctures...'

Swarm Of Mindless Robots Works Together
'Very tiny pseudo insects that... can unite to form a superordinate system.'

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.