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Hello,I'd like to know if there's a simple way to perform a force curve on a sample but delaying the retraction for about 10s;basically keeping my z-position constant for a specific amount of time before pulling away from my sample. Ultimately, I'd like to perform a "stress-relaxation test" at specific locations whereby i observe the total deflection change while "parked" at the z-position as a function of time. This can help me extract the viscoelastic properties of my sample.The AFM i'm using is the Dimension 3100 SPM with a nanoscope IVa controller with an installed Nanoman software.I was initially told that it is possible to do this task, but i cannot extract the relevant information from the referred manuals. I was suggested by a tech support representative to make use of the strip chart recorder while in Nanoman mode. Any suggestions/tips will help; The manuals are not very helpful. Thanks in advance.
Stefan,
Thank you for the reference. I will try to go through the same steps as mentioned within that thread.Hopefully my current system will allow the stress relaxation data.
Hello Stefan,
Thank you once again for the reference on the strip chart procedure.I do get convincing results.I would like to extend a question to you: Do you or anyone you may know have experience in performing force curves in liquid medium with the dimension3100 afm? I'm having some issues with the overall setup.Specifically, i'm trying to do force curves on samples within a petridish with certain amount of medium in it.I currently have one standard fluid cell probe holder as well as one rubber slip to help in protecting the electronics. I would like to get some tips/suggestions on how to properly place a petridish on my afm platform and then plunge my afm tip into the medium so i can perform my experiments.Thanks!
Alperen Ketene
Stefan Kaemmer:PS I tried to post a link to the thread instead of just the title but failed miserably
Here's a link to cut and paste:
http://www.veeco.com/nanoscaleworld/forums/p/399/628.aspx
Hi, it's has been a long time since they have updated this post, but I'm interested in the comment Alperen Ketene made, but I can not see all the answers to this posts, neither Stefan Kaemmer's answers nor the link http://www.veeco.com/nanoscaleworld/forums/p/399/628.aspx
If anyone has any info about it I would appreciate it!
Hi Luis,
If you're interested in knowing more about stress relaxation curve acquisition, you may contact my colleague who picked up the AFM work a couple years ago; Hesam Babahosseini at heb10001@vt.edu. I'm sure he'd be willing to help you with any questions regarding this topic. Also, please take a chance to glance through some of our journal publications.
Thank you for the attention.