Recent content by yesbeckng

  1. Y

    Stable dispersion of nano-hydroxyapatite in water or PBS

    Thank you for the reply. Since creating this thread I've tried various other methods and finally created a stable suspension using low MW polyacrylic acid. I have not had time to fully characterize the crystal suspension, but if my work is published I will post a link so that others can know the...
  2. Y

    Stable dispersion of nano-hydroxyapatite in water or PBS

    I have synthesized nano-hydroxyapatite particles via wet chemistry precipitation of a Ca-PO4 solution. In water and PBS, these crystals tend to clump together in aggrigates up to 20-30 microns. The only way that I can get them to disperse is to sonicate them in either Hexafluoro-2-propanol or...
  3. Y

    Where can I purchase a high frequency step-up transformer

    I contacted this company about a week ago but never received a response. I called again and sent another email just now. It seems to be what I need, but I won't know for sure until I can talk with their engineers. I will keep the thread updated, and in the mean time I will continue to search for...
  4. Y

    Where can I purchase a high frequency step-up transformer

    Thank you berkeman, I am trying to replicate a transformer in a paper for plasma generation. The paper describes the transformer as a 10mm diameter ferrite rod with 5(.3mm):400(.15mm) windings of copper wire. Loss Resistance= 26 ohm Self Capacitance=3.55pF I've had no luck finding a ferrite...
  5. Y

    Where can I purchase a high frequency step-up transformer

    I need a transformer with the following characteristics that can operate at a frequency of 1MHz. Step-up ratio= 1:80 Primary L=1.55uH Secondary L=10.65mH Mutual Inductance= 62.5uH Any suggestions on what US companies might carry this kind of product?