- #1
fourier jr
- 765
- 13
awesome! i guess it won't be long now before people will be able to do this with their iPhones:
http://www.dailymail.co.uk/sciencet...n-times-smaller-grain-sand-pictured-time.html
The team from IBM Research Zurich said the results could have a huge impact of the field of nanotechnology, which seeks to understand and control some of the smallest objects known to mankind.
The AFM uses a sharp metal tip that acts like a tuning fork to measure the tiny forces between the tip and the molecule. This requires great precision as the tip moves within a nanometer of the sample.
'Above the skeleton of the molecular backbone (of the pentacene) you get a different detuning than above the surface the molecule is lying on,' Mr Gross said.
This detuning is then measured and converted into an image.
To stop the tip from absorbing the pentacene molecule, the researchers replaced the metal with a single molecule of carbon monoxide. This was found to be more stable and created weaker electrostatic attractions with the pentacene, creating a higher resolution image.
http://www.dailymail.co.uk/sciencet...n-times-smaller-grain-sand-pictured-time.html