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Oliver, The cantilever die thickness very much effects the performance of the optical system in the AFM. In most cases, the cantilever holders are designed with the expected chip thickness in mind. For example, since most air levers are silicon (and made on 300um substrates) the air cantilever holders are designed for this thickness. Historically many
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I have not tried this by agree that there would be no fundamental problem to operation; however, functionally there would be a tremendous decrease in sensitivity from the Q damping of the fluid. If you think you can tolerate a decrease in signal proportional to the decrease in Q, it is worth a shot. Steve
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Ash, There are many good references on calibration, here is one from Ben Ohler: AN094-RevA0-Practical_Advice_on_the_Determination_of_Cantilever_Spring_Constants-AppNote.pdf In general, the thermal tune calibration method takes into consideration the tip location because the method uses the measured deflection-sensitivity. The measured deflection-sensitivity
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Tim, #1 is correct. Remember, NEVER put a high voltage input into the SAMV #2 The best way to do this is not to use the SAMV, but is from within the NSV. To do it in the NSV you will need to separate the AC and DC, applying one to the tip and the other to the sample. In general, the performance of PFM will be degraded if you go through the SAMV. This
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Tim, You are correct in this. The quickest solution is to use the regular Icon tip holder (rather than the heated H/C tip holder) to do this measurement. The regular tip holder will enable the PFM, however, you will not be able to heat the tip. This should be no problem if your experiment is at less than 100C; it may be OK if you are going hotter, please
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Attached is a paper that is published in this month’s issue of the journal “Pharmaceutical Research”. It is titled “Atomic Force Microscopy-Based Screening of Drug-Excipient Miscibility and Stability of Solid Dispersions,” by Lauer et. al. from Roche (and including Johannes Kindt from Bruker). The Article describes a novel
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Atomic Force Microscopy-Based Screening of Drug-Excipient Miscibility and Stability of Solid Dispersions. ABSTRACT Purpose Development of a method to assess the drug/ polymer miscibility and stability of solid dispersions using a melt-based mixing method. Methods Amorphous fractured films are prepared and characterized with Raman Microscopy in combination
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Hi Dan, hope all is well. Here is a post on how to upload images to the fourm: http://nanoscaleworld.bruker-axs.com/nanoscaleworld/forums/t/526.aspx It looks like Adam and Bede are addressing your technical question at: http://nanoscaleworld.bruker-axs.com/nanoscaleworld/forums/t/522.aspx Thanks for posting, Steve
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1) Upload your picture to the NSW: Go to “Your Files” at the bottom right corner of your home page and click View and upload files. 2) Click Browse to select your file. Then click “Add File 3) In the Nanoscale forum, click the Insert Media button. 4) Navigate to your file in {Login} Files Tab. Select Image. Click Insert. 5) Add any
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In general, I will give a pretty similar response to the previous question on probe selection: If you are using PFT, try both ScanAsyst Air, or SNL -B (~0.3 N/m); for fluid - ScanAsyst_Fluid (~0.7 N/m). If you plan to use tapping, try FESPA or TESPA probes. That said I am not as familiar with you sample as I might need to be. Can you tell me a little