X-Message-Number: 9169 From: Ralph Merkle <> Subject: Low temperature restoration of human tissue Date: Mon, 16 Feb 1998 11:37:43 PST Several recent posts have discussed restoration of human tissue (and in particular restoration of the human brain). A relevant URL is: http://www.merkle.com/cryo/techFeas.html#RESTORATION One approach (among several approaches discussed) is low temperature restoration. If tissue is restored at sufficiently low temperatures, concerns that brownian motion and thermal noise will cause significant structural changes and deterioration during the restoration process can be avoided. However, it is then necessary to rewarm the structure. The section on low temperature restoration discusses this, and concludes: By combining (1) rapid, highly controlled heating; (2) atomically precise introduction of cryoprotectants; (3) the controlled addition of small nanovacuoles and regions of vitrified H20 to reduce or eliminate thermal expansion and contraction; and (4) the addition of structural proteins to protect against any remaining thermally induced stresses; the damage that might otherwise occur during rewarming should be completely avoidable. Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=9169