Can Nanoscale Vibrations Affect Particle Positioning?

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Discussion Overview

The discussion centers around the potential effects of nanoscale vibrations on the positioning of particles, specifically when scaling down to particles approximately 10nm in diameter with 100nm spacings. Participants explore the feasibility of this concept based on observations from a video of salt being positioned on a vibrating substrate.

Discussion Character

  • Exploratory
  • Debate/contested

Main Points Raised

  • One participant questions whether the concept would work at nanoscale, seeking insights on potential problems that might arise when scaling down the system.
  • Another participant suggests that the vibrational nodes of the plate would remain unchanged, which could disrupt the relative scale, although the effects of this are uncertain.
  • A different participant clarifies that the frequency would also need to be scaled up to bring the nodes closer together, but does not provide further details on the implications of this adjustment.
  • One participant expresses a lack of knowledge on the topic but acknowledges the interesting nature of the video.
  • Another participant shares a reference to a paper on inertial mass sensing in nanoelectromechanical systems, questioning its relevance to the discussion.

Areas of Agreement / Disagreement

Participants do not reach a consensus on whether nanoscale vibrations can effectively position particles, with multiple competing views and uncertainties remaining in the discussion.

Contextual Notes

Participants express uncertainty regarding the effects of scaling down the system, particularly in relation to vibrational nodes and frequency adjustments. The implications of these factors remain unresolved.

jeberd
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First watch the video clip below of salt being positioned on a vibrating substrate...

http://www.youtube.com/watch?v=s9GBf8y0lY0"

...Then tell me why you think that this wouldn't work if I shrunk everything down so that the particles being used were ~10nm diameter and the spacings were ~100nm between features. I am hoping that it will, but I want to see where others foresee problems arising.

EDIT: and the frequency increased proportionally
 
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The vibrational nodes of the plate wouldn't change, so the relative scale would be totally trashed. I'm not sure what the effect of that would be. In order to change the nodes, you would also have to change the physical composition of the plate. Again, the effect is unknown (to me).
 
@Danger: Sorry, The frequency would also be scaled up to force the nodes together
 
[Double Post]If you think that it does work, leave a quick comment attesting so, please. Also, the video is somewhat interesting in of itself, so even if you don't want to help me out, you might get some entertainment from it.

Thanks.
 
I've actually seen that video before, and I agree that it's really neat to watch. As for wanting to help you... I wish that I could. Unfortunately, I just don't know anything about it. My first response was just a shot in the dark to let you know that your presence is welcome. :smile:
 

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