Carbon nanotubes offer a powerful new way to detect harmful gases in the environment. However, the methods typically used to build carbon nanotube sensors are hazardous and not suited for large-scale production.
A new fabrication method created by MIT chemists — as simple as drawing a line on a sheet of paper — may overcome that obstacle. MIT postdoc Katherine Mirica has designed a new type of pencil lead in which graphite is replaced with a compressed powder of carbon nanotubes. The lead, which can be used with a regular mechanical pencil, can inscribe sensors on any paper surface.
The sensor, described in the journal Angewandte Chemie, detects minute amounts of ammonia gas, an industrial hazard. Timothy Swager, the John D. MacArthur Professor of Chemistry and leader of the research team, says the sensors could be adapted to detect nearly any type of gas.
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Video: Melanie Gonick
Simulations courtesy of: Jan Schnorr
source
Simple Homopolar Toy motor ,high speed
Reusable Cold Pack experiment
What is 'commercial powder nanotubes'? How much people normally pay for it now?
Wow. Soon nanotubes wills be everywhere.
Nanotubes are my best friend
Well, she certainly put lead in my pencil! Lol!
She is from MIT which is the #1 school in the world. Think you are so good , I don't think you even went in that college. multi -B $ , SHE IS GONNA BE RICHER THAN YOU SOMEDAY. replied to :multi – b$ loonitic
Nice mouth movement.
Still, Lame? Get over urself.
I'm in talks w a multi-B $ international corp reg a pump/turbine based on my rotary engine. That ME & AE comes in handy when ur self motivated/reliant/employed. Never had my hand held and buttox powdered in a cushy job.
Oh, look at [the] Lame spelling. Goo-boy. Now go back 2 ur room! No, T, I don't insult ppl but I don't mind mirroring Lamos. That includes learned ones, hence my original comment w reference 2 the old adage When d shoe fits…
Enough funnin
Peace
Молодца! 🙂
Katherine 'MERICA!!!
Where does one find "commercial carbon nanotube power"?
Good
Scientist are the real Rock Stars.
ah another video where they just read to us off slides : /
Look a lame a..hole contributed nothing to commentary on human technology. Lame. Hmm how apropos.
I've invented radical rotary engine designs and turbo machinery, a vastly superior wind turbine, hydrokinnetic energy systems, and much more. What have you done besides being irrelevant? Oh I know. You're Lame.
Have any significant social or techno commentary? No I did not think so.
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They are giving away Apple iPhones to the very first 500 that finish the 5 easy questions!
If you were to pay attention you would realize that your comments are off.
it really does just sands like she has a dry mouth
FALSE! A pencil is not made of lead. its made of graphite!
Yeah, people should ONLY work on the very most important problems we face. That will solve things for sure.
nadahere, you are a moron
Cool research, looks very useful!
MIT, the whores of Fatherland Insecurity. What a bunch of USELESS tech. There are people dying. This stuff wont help them or fix any of the large problems in the world. Talk about pandering to a small niche and wasting big bucks. Most academia and politicians are out of touch with reality.
More of her then the carbon nanotubes. Bet she was this video's director.
very cool!
Sexy.
And of course very interesting .
I bet that girl never expected anyone to masturbate to her on youtube, and yet here I am, sitting here…
Also, good work.
I like her accent =)