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Atomic bond types discernible in single-molecule images
BBC News ^ | 13 September 2012 | Jason Palmer

Posted on 09/14/2012 7:55:26 PM PDT by neverdem

A pioneering team from IBM in Zurich has published single-molecule images so detailed that the type of atomic bonds between their atoms can be discerned.

The same team took the first-ever single-molecule image in 2009 and more recently published images of a molecule shaped like the Olympic rings.

The new work opens up the prospect of studying imperfections in the "wonder material" graphene or plotting where electrons go during chemical reactions.

The images are published in Science.

The team, which included French and Spanish collaborators, used a variant of a technique called atomic force microscopy, or AFM.

AFM uses a tiny metal tip passed over a surface, whose even tinier deflections are measured as the tip is scanned to and fro over a sample.

The IBM team's innovation to create the first single molecule picture, of a molecule called pentacene, was to use the tip to pick up a single, small molecule made up of a carbon and an oxygen atom.

This carbon monoxide molecule effectively acts as a record needle, probing with unprecedented accuracy the very surfaces of atoms.

It is difficult to overstate what precision measurements these are.

The experiments must be isolated from any kind of vibration coming from within the laboratory or even its surroundings.

They are carried out at a scale so small that room temperature induces wigglings of the AFM's constituent molecules that would blur the images, so the apparatus is kept at a cool -268C.

While some improvements have been made since that first image of pentacene, lead author of the Science study, Leo Gross, told BBC News that the new work was mostly down to a choice of subject.

The new study examined fullerenes - such as the famous football-shaped "buckyball" - and polyaromatic hydrocarbons, which have linked rings of carbon atoms...

(Excerpt) Read more at bbc.co.uk ...


TOPICS: Culture/Society; News/Current Events; Technical
KEYWORDS: chemistry; imaging; physics; science; stringtheory; technology

1 posted on 09/14/2012 7:55:31 PM PDT by neverdem
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To: neverdem
All I can say is, wow!


2 posted on 09/14/2012 7:58:49 PM PDT by Squawk 8888 (True North- Strong Leader, Strong Dollar, Strong and Free!)
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To: neverdem

Cool! And I’m right on the edge of HDTV being better than my own eyes.


3 posted on 09/14/2012 7:59:18 PM PDT by VanShuyten ("a shadow...draped nobly in the folds of a gorgeous eloquence.")
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To: Squawk 8888

It is positively amazing how much those old time physicists and chemists got right, with nothing more than pieces of paper and equations.


4 posted on 09/14/2012 8:00:31 PM PDT by Jonty30 (What Islam and secularism have in common is that they are both death cults.)
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To: neverdem

That is stunning.


5 posted on 09/14/2012 8:00:47 PM PDT by La Lydia
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To: Squawk 8888

So...the bees had it right all along.


6 posted on 09/14/2012 8:03:33 PM PDT by unixfox (Abolish Slavery, Repeal The 16th Amendment!)
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To: Squawk 8888

Photoshopped.


7 posted on 09/14/2012 8:07:05 PM PDT by steve86 (Acerbic by nature not nurture TM)
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To: neverdem

Hebrews 1:3
King James Version (KJV)

3 Who being the brightness of his glory, and the express image of his person, and upholding all things by the word of his power, when he had by himself purged our sins, sat down on the right hand of the Majesty on high:

Note: UPHOLDING ALL THINGS BY THE WORD OF HIS POWER

that there explains alot...


8 posted on 09/14/2012 8:15:43 PM PDT by One Name
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To: Squawk 8888

A bowl full of those is breakfast cereal. Honeycomb!


9 posted on 09/14/2012 8:17:03 PM PDT by 17th Miss Regt
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To: Squawk 8888; SunkenCiv; KevinDavis

we can actual see that well at those magnifications now??


10 posted on 09/14/2012 8:17:38 PM PDT by GeronL (The Right to Life came before the Right to Pursue Happiness)
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To: GeronL

The glue, the mysterious power that holds the universe together is the power of God. See post #8.

But I suspect you know this already, FRiend!


11 posted on 09/14/2012 8:24:40 PM PDT by One Name
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To: All

This is coming to an end! I heered myself that Ben Bernanke will be buying up the bonds at $40million a month rate. At that rate he’ll just buy these bonds up sos they can’t study them anymore.


12 posted on 09/14/2012 8:24:54 PM PDT by BipolarBob (Biden: "HOPE and CHAINS for all 57 states".)
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To: GeronL

Well, it’s not actual “sight” - the images aren’t being generated by the absorption or reflection of electromagnetic radiation (visible light rays), but rather are color-coded representations of the strength of the interaction of the probe (the CO “record needle”) and the atoms in the molecule that’s getting probed.

If the CO probe is close to a carbon atom, the resulting signal is presented as one shade of color; if it’s further away and there’s a weaker interaction, by a different color or shade. The full collection of those signal interpretations is the picture that’s shown in the article.


13 posted on 09/14/2012 8:26:32 PM PDT by Stosh
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To: neverdem
VERY cool image...
14 posted on 09/14/2012 8:31:52 PM PDT by Chode (American Hedonist - *DTOM* -ww- NO Pity for the LAZY)
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To: La Lydia

Bump.


15 posted on 09/14/2012 8:32:43 PM PDT by Graewoulf ((Traitor John Roberts' Obama"care" violates Sherman Anti-Trust Law, AND the U.S. Constitution.))
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To: Stosh

cool.

Is that a description of what a scanning electron microscope does? or have they moved on from those?


16 posted on 09/14/2012 8:33:32 PM PDT by GeronL (The Right to Life came before the Right to Pursue Happiness)
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To: Jonty30

It truly is!!


17 posted on 09/14/2012 8:39:10 PM PDT by albionin
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To: neverdem

Groovy


18 posted on 09/14/2012 8:48:29 PM PDT by Isabel C.
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To: GeronL

Well, electron microscopy is a yet another technique, different from both standard light microscopy (the normal microscopes we’d use in school) and AFM (atomic force microscopy), the method that’s described in the paper. Actually, electron microscopy is probably closer to traditional light microscopy than it is to AFM.

It’s a really crude analogy, but AFM is almost like that old fable about the group of blind guys who touch an elephant and variously describe it as a snake (if one touches the tail) or a tree limb (if one touches the trunk) or a sheet (if one touches the ear), etc. Except in AFM, *all* those “touches” are recorded and graphed over a two-dimensional plot, so you get the “whole elephant”, and not just one bit.

In both EM and light microscopy, you’re getting info by the interaction of high energy particles (EM) or energy-rich photons (light microscopy) with the target in question. It’s just that when things get small enough (like individual molecules), the wavelengths of visible light aren’t short enough to do you any good in terms of building an image.

Where scanning EM is like AFM is that in both you are progressively moving a probe (your beam of electrons or your molecular “record needle”) in a systematic fashion across the target object.


19 posted on 09/14/2012 8:57:11 PM PDT by Stosh
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To: Stosh

OK, OK. I get it. Too technical for me. I don’t want to go back to school.

:p


20 posted on 09/14/2012 9:01:16 PM PDT by GeronL (The Right to Life came before the Right to Pursue Happiness)
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To: neverdem

I hope this technology leads to synthetic fuel to run our transportation system.


21 posted on 09/14/2012 9:18:24 PM PDT by jonrick46 (Countdown to 11-06-2012)
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To: One Name
God may be 1-dimensional oscillating strings of eternal existence. God may be the love song of existence.
22 posted on 09/14/2012 9:25:03 PM PDT by jonrick46 (Countdown to 11-06-2012)
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To: jonrick46

God spoke the oscillating strings into existence, if they be the mechanics of they universe. He is not the string(s).

IMHO.


23 posted on 09/14/2012 9:30:13 PM PDT by One Name
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To: GeronL; Stosh
Atomic force microscopy

Wikipedia is OK if it isn't political, IMHO.

24 posted on 09/14/2012 9:32:15 PM PDT by neverdem ( Xin loi min oi)
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To: One Name

Then they are his instrument for the song of existence.


25 posted on 09/14/2012 9:34:41 PM PDT by jonrick46 (Countdown to 11-06-2012)
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To: Jonty30
It is positively amazing how much those old time physicists and chemists got right, with nothing more than pieces of paper and equations.

I was thinking the same thing. What they were doing is coming up with an appropriate way to model molecules. To finally go down and see that level and think, yeah, we thought it would look pretty much like that, is astounding.

26 posted on 09/14/2012 9:39:45 PM PDT by Vince Ferrer
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To: jonrick46

I can subscribe to that- the similarity between a leaf and a snakes pattern and insects tells me they all had the same Designer.


27 posted on 09/14/2012 9:41:58 PM PDT by One Name
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To: Squawk 8888

Beautiful! Thank you for posting this!


28 posted on 09/14/2012 9:48:52 PM PDT by thecodont
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To: GeronL

The name’s Bond...Atomic Bond.


29 posted on 09/14/2012 10:32:59 PM PDT by tet68 ( " We would not die in that man's company, that fears his fellowship to die with us...." Henry V.)
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To: neverdem

Soon, perhaps, these types of tests will lead to actually nano-engineering materials on a molecule-by-molecule basis.

Room temperature superconductors, computers that will make todays machines look like etch-a-sketches, materials that are thousands, perhaps even millions of times stronger and lighter than anything we know now, insulation, the mind boggles at the possibilities...


30 posted on 09/14/2012 10:40:50 PM PDT by djf (Political Science: Conservatives = govern-ment. Liberals = givin-me-it.)
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To: GeronL; 6SJ7; AdmSmith; AFPhys; Arkinsaw; allmost; aristotleman; autumnraine; Beowulf; Bones75; ...
Thanks GeronL.


· List topics · post a topic · subscribe · Google ·

31 posted on 09/15/2012 6:09:39 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: One Name; jonrick46

We really do create Him in our image. My own take is that the universe is God’s mind.


32 posted on 09/15/2012 8:14:20 AM PDT by Squawk 8888 (True North- Strong Leader, Strong Dollar, Strong and Free!)
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To: Squawk 8888

The photo looks just like the schematic.


33 posted on 09/16/2012 7:14:41 AM PDT by PJ-Comix (Beware the Rip in the Space/Time Continuum)
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To: Squawk 8888

The photo reminds me of the Star of David.


34 posted on 09/16/2012 9:04:47 AM PDT by xp38
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