There is tremendous amount of on going research to develop
living tissue in the biomedical engineering field. With the evolution and
promise of 3D printing many biologists have now been evolving innovative ways
to recreate living tissues. While three-dimensional printing is revolutionizing
the manufacturing world, the world of bio-engineering is paving the future by
using this technology for the purposes of developing organs and tissues.
Bioprinters have the capability to artificially place cells to create living
tissue. The flexibility of bio printers permits it to place cells exactly as it
is required. The vertical and horizontal movements of the head of the printer
develop the living tissue layer by layer.
Bioprinting has numerous interesting applications, according
to the Wall Street Journal there are researchers at Cornell that are currently
working on developing heart valves, knee cartilages and bone implants. In North
Carolina, bioengineers are working on printing kidney cells and healing tissues
for burns and scars. Researchers and engineers hope that some day transplant
surgeries will be supported by this bioprinting technology itself. The beauty
behind this technology is that every body organ has its own intricate complex
structure, if this could be replicated it will solve a lot of existing medical
problems.
In 2010, Organovo, a pioneer company in bioprinting printed
the first blood vessel. Since then they have implanted nerve grafts into
animals such as rats and predict that such technology would be fit to use on
humans by 2015. Bioprinting or tissue engineering is still in a very
preliminary stage, most researchers claim that it will still be years before
this is actually clinically tested.
While bioprinting brings with the promise of the unexpected
with medicine the question that arises is that of moral practices. How will the
government, research labs and medical institutes enforce and carry out ethical
practices? How will they limit and restrain the power from slipping into the
wrong hands? How will they ensure that what was meant to cure a broken leg will
not be used instead to enhance it?
References:
1) http://online.wsj.com/article/SB10000872396390443816804578002101200151098.html?mod=e2tw
2) http://www.explainingthefuture.com/bioprinting.html
3) http://www.organovo.com/
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