[extropy-chat] Re: The Amazing Cellular Repair device
thespike at satx.rr.com
Mon Oct 17 16:55:48 UTC 2005
Dunno if this has any bearing, might:
Story from BBC NEWS:
Published: 2005/10/16 23:16:25 GMT
New tissue 'grown within minutes'
UK scientists say they can cut the time it takes to grow new tissue from
days to minutes.
The lengthy process can be accelerated by simply removing the water present
in the starting material, the University College London team discovered.
Following such shrinkage by a factor of at least 100, tissues could be
created in 35 minutes.
This speed may one day allow doctors to make tissue implants at the
bedside, Advanced Functional Materials reports.
Currently, scientists make tissues to be used for operations such as skin
grafts by building a scaffold of cells that grow in the lab.
However, it can take between one and 12 weeks to grow enough of the
required tissue for the surgery.
Professor Robert Brown and colleagues investigated whether they could cut
this time down.
They experimented on making a tissue called collagen, which acts as a
structural support for skin, bones and tendons.
Sucking out the water using a technique called plastic compression meant
they could make the collagen in just over half an hour.
The tissue was not only made much faster than that made in the conventional
tissue engineering way, it also appeared to be stronger, more like real
Professor Brown said: "Our method offers a simple and controllable means of
quickly engineering tissue structures.
"The next stage is to test whether this method could help repair injured
"Ultimately, the goal is to design a rapid, inexpensive, automatic process
for creating strong tissues which could supply hospital surgical units with
a tool kit of spare parts for reconstructive surgery.
"The speed and control it offers means that our method could one day be
used to produce implant tissue at the bedside or in the operating theatre."
Professor Tim Hardingham, from the UK Centre for Tissue Engineering, said:
"The method has great potential for further development in clinical
applications of tissue repair where immediate mechanical strength is required.
"Its success in these applications will depend on how it is survives in the
body and how it is remodelled by natural body processes.
"It also needs to be known whether it can act as a template that is
replaced by normal functional tissue. The present work provides a good
experimental basis for these further studies."
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