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ref: -0 tags: parylene plasma ALD insulation long-term saline PBS testing date: 04-02-2014 21:32 gmt revision:0 [head]

PMID-23024377 Plasma-assisted atomic layer deposition of Al(2)O(3) and parylene C bi-layer encapsulation for chronic implantable electronics.

  • This report presents an encapsulation scheme that combines Al(2)O(3) by atomic layer deposition with parylene C.
  • Al2O3 layer deposited using PAALD process-500 cycles of TMA + O2 gas.
  • Alumina and parylene coating lasted at least 3 times longer than parylene coated samples tested at 80 °C
    • That's it?
  • The consistency of leakage current suggests that no obvious corrosion was occurring to the Al2O3 film. The extremely low leakage current (≤20 pA) was excellent for IDEs after roughly three years of equivalent soaking time at 37 °C.
    • Still, they warn that it may not work as well for in-vivo devices, which are subject to tethering forces and micromotion.

{456}
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ref: picture-0 tags: photo arizona woman desolate fierce determined 1970 NewYorker date: 05-04-2009 20:49 gmt revision:3 [2] [1] [0] [head]

"One shot of [Lee Freidlander's], from 1969, traps an entire landscape of feeling: a boundless American sky, salted with high clouds, plus Freidlander's wife, Maria, with her slightly smiling face - inside the cab of a single truck, layering what we see through the side window with what is reflected in it. I know of long novels that tell you less "

(not the shot above, but just the same - )

some more - http://www.nga.gov.au/SurfaceBeauty/IMAGES/LRG/Fiedlander-1981.954.jpg

{706}
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ref: Shadmehr-1997.01 tags: Shadmehr human long term memory learning motor M1 cortex date: 03-25-2009 15:29 gmt revision:2 [1] [0] [head]

PMID-8987766[0] Functional Stages in the Formation of Human Long-Term Motor Memory

  • We demonstrate that two motor maps may be learned and retained, but only if the training sessions in the tasks are separated by an interval of ~5 hr.
  • Analysis of the after-effects suggests that with a short temporal distance, learning of the second task leads to an unlearning of the internal model for the first.
  • many many citations!

____References____

[0] Shadmehr R, Brashers-Krug T, Functional stages in the formation of human long-term motor memory.J Neurosci 17:1, 409-19 (1997 Jan 1)