Moving molecules by hand

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Video in TIB AV-Portal: Moving molecules by hand

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Title
Moving molecules by hand
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License
CC Attribution - NoDerivatives 4.0 International:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
Identifiers
Publisher
Release Date
2015
Language
English

Content Metadata

Subject Area
Abstract
In 1990 the first single atom manipulation experiments were carried out with a scanning probe microscope. The video describes how today, 25 years later, a motion tracking system is used to couple the microscope tip directly to the operator’s hand. Literally moving the tip with their hand, the operator creates a nanoscale structure by removing molecules from a monolayer, although the molecules are bonded strongly to their neighbours. The experiment illustrates the power of intuitive control and demonstrates the possibility of intentional manipulation even when the interactions between the manipulated objects are largely unknown. Music by Alexander Lubeckij (Musiklizenzvereinbarung)
Keywords microscopy
Molecule Organische Chemie Surface science Functional group Chemical structure Multiprotein complex Block (periodic table)
Molecule Physical chemistry Atom probe Surface science Zunderbeständigkeit Chemistry
Metal Atom probe Surface science
Molecule Atom probe Surface science Tiermodell Stratotyp Smoking (cooking) Substrat <Chemie> Butcher Multiprotein complex Single malt whisky Atomic number Electronic cigarette
Molecule Hydrogen Ionenbindung Fracture Surface science Marker, Norway Butcher Fracture Wine tasting descriptors
Cheminformatics Molecule Exciter (effect)
Cheminformatics Molecule Tiermodell Multiprotein complex
Molecule
Molecule Chemical experiment
room to all the mistakes of the most complex systems don't tell us the nature of traits and it can choose from millions of organic molecules and arrange them into the design structures. so he also said she learned how to assemble for the talks with our hand to structures of various complexity of what happens if these building blocks become and smallest molecules of the institute of function on a structure said surfaces which is part of peter greenberg institute in washington.
to be living in germany the explore the potential and visibility of nanoscale engineering already more than twenty years ago people learned how to manipulate indeed you at times now the optimum much more complex task you'd like to use all microscopes to manipulate larger going twenty six.
studying like the assistance to follow several approaches including for example the self-assembly of molecular a us on metals in general all work his family based on sofas physics and sofas chemistry as we use many concepts and methods from surface science to lay the foundations for all molecular scale. and here and experience. a particular method in this context is the engineering of nanostructures scanning probe microscopes you learn how to handle molecules individually one by one.
the microscope essentially was one important part and this is a very sharp metal needle or as you call a deep when he brings a deep in the clothes we see each of the surface then you to quantum mechanical effect of electron tunnelling would you do some special force interactions deep actually feels the surface.
he was getting probe microscope for the s.p.l..
is basically like a finger that can feel single atoms and single malt use and thereby image them visualize them but what is even more exciting is that with this finger we can touch those things on the surface and even move them around of.
based on all surfaces work we have developed a model system for the handling of thing the molecules was scanning probe microscopes. the central idea is to employ a class of molecules was particularly reactive atoms that conform local bones for example to the substrate much smoke use its. those reactive atoms can also be used to pick up the molecule is a scanning telling microscope tip. and i get the most that can be depicted as small circle objects larger getting molecules have enormous complexity with many degrees of freedom and you do this highs day become very soft very flexible and moreover they stick to the surface much stronger. then single atoms to two. they want to surface needs to be broken great you you do it by being more you off and it continued you adams one of the another this works well for single molecule because the lower end of the molecule is free to slide across the surface as believed its operator and.
when many molecules sit together on the surface the also buy into each other for example through so-called hydrogen bombs. now many palatial becomes difficult because we also have to break the bonds between the molecules since these bones prevent the molecule from sliding across the surface the wrong to project treat would lead to a rupture of the bond between to and molecule to find the right trajectory ph. she had to try a new approach this old why don't we use our body intuition if you could move deep of the microscope is no and then we could quickly try many different ways of using the money can and observing the measured signals we could also just how.
actions in real time with the help of two cameras can direct the position of this market in space so now copying the position of the marker to the position of the microscope deep began holding the marker literally deitch and pull all morning killed by hand.
to check on new technique we decided to write the word the first word stenciled into the molecule only are removing forty seven when he killed by hand one by one. so in a matter of only a few hours we sold manipulation problem by intuition reach these analytic computing who don't school writing what may seem like playing but the fact that they can manipulate molecules by hand opens new exciting possibilities for example.
and use information came from these experiments to reconstruct the molecular and directions so if we knew that wasn't directions beforehand than many patients would actually become a deterministic problem and we could simply delegated to computer but reconstructing these in direction pretensions.
it is an enormously difficult challenge to simply due to the complexity of the molecules which enabled to solve this problem we have to involve computers and to make to computers understand our experiment we have to give the model and lectures simulation that could actually run while we do to.
interment and finally to understand the results of such a simulation we have to use a good way of visualizing them this is why for example we use these virtual reality goggles year which help us to see the molecule as we manipulated so in other words to fully control.
all molecule in many places we have to join the reality of the experiment with the virtual reality of the computer simulation in real time thirty years ago the scanning telling microscope revolutionised of assize making atoms visible for the first time the belief that today experiments like the.
on shown in this video point the way to entirely new quality of nanoscale engineering. by.
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