1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The current state of nanotechnology

  1. Dec 19, 2016 #1
    Hi

    My question is not long, but it is very broad; Is nanotechnology simpy just a rebranding of material science?

    Is there anything else to it? I have not really seen it used outside chemistry and material science. Do simple nanomachinery exist?

    I guess on a more speculative level it exists, but has something actually been created that is more than just another, maybe more advanced, material?
     
  2. jcsd
  3. Dec 19, 2016 #2

    berkeman

    User Avatar

    Staff: Mentor

    Do you know how smartphones sense orientation and movement? :smile:
     
    Last edited: Dec 20, 2016
  4. Dec 19, 2016 #3

    rbelli1

    User Avatar
    Gold Member

    Those are usually called MEMS sensors. Micro electronic mechanical systems.

    The smallest features of these systems will sometimes push the limits of nano-meter scale.

    https://www.foresight.org/nano/
    https://en.wikipedia.org/wiki/Nanotechnology
    https://www.google.com/search?q=nano+technology&ie=utf-8&oe=utf-8

    All indicate that nanotechnology starts at 100nm. Are there any MEMS devises that should more accurately be called NEMS?

    BoB
     
    Last edited by a moderator: Dec 20, 2016
  5. Dec 20, 2016 #4

    f95toli

    User Avatar
    Science Advisor
    Gold Member

    Sure, NEMS is a research field in itself (I have colleagues working on NEMS). That said, I am not sure if there are any commercially available NEMS devices yet.

    The answer to your question will depend on your definition of "nanoscience". There is certainly a LOT of work going on using nm sized devices and making electronic devices with feature sizes smaller than 100nm has been routine for a many,many years.
     
  6. Dec 20, 2016 #5

    rbelli1

    User Avatar
    Gold Member

    What applications are NEMS useful for? Are they the same sort of thing as MEMS only smaller or are there novel applications only achievable at the smaller scale?

    BoB
     
  7. Dec 21, 2016 #6

    f95toli

    User Avatar
    Science Advisor
    Gold Member

    I believe the application most frequently mentioned is gas detection; some NEMS resonators are extremely sensitive to any extra mass to the point where they can "sense" even single atoms attaching landing on the resonator. The obvious application of this would be a machine that could the do the job of a mass spectrometer but without having to ionize the particles first (which is a major limitation with current mass specs).

    There are also a whole range of fundamental physics experiments where NEMS devices (especially resonators) are used
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: The current state of nanotechnology
  1. [ask] nanotechnology (Replies: 1)

Loading...