Info in nanotechnology, optical tweezers

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Discussion Overview

The discussion centers on optical tweezers and their application in manipulating nanoparticles, specifically focusing on the forces involved in this process. Participants seek to clarify the types of forces acting on nanoparticles when using optical tweezers, as well as to find specific information and research papers related to this topic.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant expresses a need for specific information regarding the forces acting on nanoparticles manipulated by optical tweezers, beyond the commonly discussed forces.
  • Another participant suggests that a clear question would facilitate more meaningful responses.
  • A participant currently working on optical tweezers identifies optical forces as primary but questions the existence of additional forces such as capillary, electrostatic, van der Waals, gravity, and buoyancy forces, expressing uncertainty about their relevance.
  • There is acknowledgment of confusion among participants regarding the initial inquiry, and a request for further clarification is made.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus on the specific forces involved in the manipulation of nanoparticles with optical tweezers. There are multiple viewpoints regarding which forces should be considered, and the discussion remains unresolved.

Contextual Notes

Participants express uncertainty about the completeness of the forces involved in nanoparticle manipulation, indicating that existing literature may not cover all relevant forces. There is also a mention of the need for more specific information and research papers.

njoi
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hi
do anyone of you know optical tweezers... these are used in manipulating nanoparticles... any of u if ur working or familiar in nanotechnology or optical tweezers.. it would greatly help me...
please reply
thanks in advance
 
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hmmm!

dlgoff said:
If you are looking for information, then here's lots of it.

http://www.google.com/search?q="opt...ent=firefox-a&rls=org.mozilla:en-US:official"

i did that earlier... but that is not what i am looking.. some specific info...eg. what forces exist when handling nanoparticles with laser lights... papers i have seen discuss abt only 2 forces.. i doubt that there mite also b other forces.. so issues like these are kinda doubtful for me... so if any1 of u know abt optical tweezers.. or have any gud papers on them.. please let me know.. thanks for helping in clarifyin my own question... lookin forward for furthur help
 
Last edited by a moderator:
Can you state your question clearly? It will help you get a meaningful answer.
 
well there seems to be confusion among people.. sory for that...
I am currently working on Optical Tweezers... My case involves forces experienced by a sphere (of some nanometeres in diameter) in water. I know that optical forces are the major forces, apart from that what all forces does the sphere experience. Also, my past glance at some papers on nanoparticle manipulation says me that capillary,electrostatic,van der waals, gravity and buoyancy forces can exist. I am not sure of these.. and thus i am reerting to you people...
Hope i am somewhat clear now... please let me know for furthur clarifications
Feeling sad that inspite of these many conversation in this thread... there hsnt beeen productive result... sorry if i wasted ur time

thanks a lot for the support u have shown till now

lukin forward to hear from you
have a nice time
thanks once again
 

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