Science Fiction
Dictionary
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
 |
Your Own Handheld Biosensor
Convert your iPhone to a handheld biosensor with this cradle and app developed by University of Illinois at Urbana-Champaign researchers.
(iPhone-based handheld biosensor)
Utilizing its integrated camera as a spectrometer, we demonstrate the use of a smartphone as the detection instrument for a label-free photonic crystal biosensor. A custom-designed cradle holds the smartphone in fixed alignment with optical components, allowing for accurate and repeatable measurements of shifts in the resonant wavelength of the sensor. Externally provided broadband light incident upon an entrance pinhole is subsequently collimated and linearly polarized before passing through the biosensor, which resonantly reflects only a narrow band of wavelengths. A diffraction grating spreads the remaining wavelengths over the camera's pixels to display a high resolution transmission spectrum.The photonic crystal biosensor is fabricated on a plastic substrate and attached to a standard glass microscope slide that can easily be removed and replaced within the optical path.
A custom software app was developed to convert the camera images into the photonic crystal transmission spectrum in the visible wavelength range, including curve-fitting analysis that computes the photonic crystal resonant wavelength with 0.009 nm accuracy.
We demonstrate the functionality of the system through detection of an immobilized protein monolayer, and selective detection of concentration-dependent antibody binding to a functionalized photonic crystal.
We envision the capability for an inexpensive, handheld biosensor instrument with web connectivity to enable point-of-care sensing in environments that have not been practical previously.
Science fiction fans have been teased with the idea of a powerful handheld biosensor for quite a while. In the 1960's, fans of Star Trek (TOS) recall the handheld tricorders used by both Mr. Spock and Dr. McCoy.
(Medical tricorder)
More specifically, though, I recall the boink biosensor from Richard Preston's 1997 novel The Cobra Event and the WAGD germ detector from Greg Bear's excellent 2007 novel Quantico.
From Label-free biodetection using a smartphone via KurzweilAI.
Scroll down for more stories in the same category. (Story submitted 5/29/2013)
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 - (" Medical ")
MIT Computerized Bionic Leg Is Part Of The User
'The leg was to function, in a way, as a servo-mechanism operated by Larry’s brain, through the mediation of the electronic brain in the leg.' - Charles Recour, 1949.
Bone-Building Drug Evenity Approved
'Compounds devised by the biochemists for the rapid building of bone...' - Edmond Hamilton, 1932.
BrainBridge Concept Transplant Of Human Head Proposed
'Briquet’s head seemed to think that to find and attach a new body to her head was as easy as to fit and sew a new dress.' - Alexander Belaev (1925)
Natural Gait With Prosthetic Connected To Nervous System
'The leg was to function, in a way, as a servo-mechanism operated by Larry’s brain...' - Charles Recour, 1949.
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.
Science Fiction
Timeline
1600-1899
1900-1939
1940's 1950's
1960's 1970's
1980's 1990's
2000's 2010's
Current News
Blue Collar AI Goes To Work To Mine Its Own Crypto
Blue collar bot.
Amazing Photonic Crystal Light Sail
'That sail will be twenty thousand miles at the wide part.'
Rogue AI Replicated Itself
'Sapiro’s computer just kept dialing at random, hanging up on humans, until it got a fellow computer of the same type as itself.'
HandelBot Helps Two-Handed Robots Learn Piano
'I request that you feed the correlation between those dots and the levers of the panel into my memory banks.'
Woven Fiber Electronic Skin For Robots
'... all the feel and appearance of human flesh and epidermis.'
When AI Takes Its First Breath
Any suggestions?
Chinese Aircar Light And Airy, Not For Blade Runners
Daytime version.
The Morphing Wheel And The Smartwheel
'If you surf over a bump, the spokes contract to roll over it.'
Transporting Antimatter
'...drawing plans for the magnetic tongs and bed plates and relays.'
Polish Turns Your Nail Into A Stylus
'He wrote on it, using the pointed fingernail of his right forefinger...'
I Wish This Plaudit Pin Was More Like A Wristpad
'Frank was cursing into his wristpad, switching between Arabic and English.'
World's Largest Teleoperated Arm
'...a pair so huge that Stevens could not conceive a use for it..'
Japan's AI Buddharoid Automonks
'...each of them is a neural mapping of the mind of a Tibetan monk who actually lived.'
MIT Computerized Bionic Leg Is Part Of The User
'The leg was to function, in a way, as a servo-mechanism operated by Larry’s brain, through the mediation of the electronic brain in the leg.'
The New Habitable Zones Include Asimov's Ribbon Worlds
'...there's a narrow belt where the climate is moderate.'
California Governor Candidate Calls For Voting By Phone
'... every veephone on the continent would display, over and over, two propositions.'
