X-Message-Number: 18917
From: "brent thomas" <>
Subject: warming with magnetic fluid - idea for defrosting??
Date: Fri, 12 Apr 2002 19:22:36 -0400

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saw this snippet on a more generalized message dealing with magnetic fluids

(at http://www.sciencedaily.com/releases/2002/04/020412080321.htm for those 
interested)

>>>

Another possible use of magnetic fluids is magnetic hyperthermia. By passing an 
alternating magnetic field across a magnetic fluid, the particles will heat up, 
destroying tissue in their path. This method looks promising as a noninvasive 
means of treating brain tumors, the researcher says. 
>>>


It occured to me that if one were to use a similar fluid as part of a 'blood 
replacement' therapy BEFORE cryonic suspension

(basically ensuring that the tissue is fully permeated with the solution) (or to
get really deep future to use nanobots to distribute such a particular mix 
across the frozen cells which didnt have the solution applied before freezing) 
that then controlled heating could be applied evenly across the entire cellular 
matrix at once. This would solve problems associated with uneven or uncontrolled
temperature variations during thawing and allow 'digital' (basically through 
detailed control -- as opposed to analog) control of the
rate and amount of heating.


This technique could be tested on organs (hint hint -- something for CI to have 
their researcher try out?) and could be applicable in the near term (and 
possibly quite valuable if it accomplishes reliable thawing). The material is 
biologically safe (see the linked article..they're using it for operations 
within the retina) and availible today (if you happen to have a chemist in your 
employee).


Can somebody look into if this would be helpful in the rewarming stage of 
cryonics?
(I'm just the idea guy ;->)

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