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PHBV (Biopol)

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by

Lucy O'Connell

on 16 November 2013

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Transcript of PHBV (Biopol)

PHBV (Biopol)
PHBV (Biopol)
Poly(3-hydroxybutyrate-co-3-hydroxyvalerate)

Biopol

POLYHYDROXYALKANOATES
(PHA)
Co-polymer
Recent Developments
Genetic Engineering
of bacteria (E. coli)
Faster growth
Biopol (PHBV)
Fully
BIODEGRADABLE
decomposes
Carbon dioxide and water
biodegradation
thickness and the number of micro-organisms present
anoxic environment
Other Properties
PHBV is:
biocompatible
insoluble in water
permeable to oxygen
soluble in chlorinated hydrocarbons
more dense than water
strong
non-toxic
fairly resistant to UV light
fairly resistant to acid
resistant to grease
a thermoplastic with a high melting point (approx. 175C)

<http://upload.wikimedia.org/wikipedia/commons/2/24/Polyhydroxyalkanoates.png>
+
=
3-hydroxybutanoic acid
(PHB or PH3B)
3-hydroxyvaleric acid
(PHV).
The Polymer
PHBV (Biopol)
3D rendering created in 'Avogadro'
Production
Fermentation of glucose
Escherichia coli and Ralstonia eutropha.
Carbon Tanks
The only food source available is carbon based
It is separated out and purified for use.
E. coli
Ralstonia eutropha
<http://www.geek.com/wp-content/uploads/2012/08/Ralstonia_eutropha.jpg>
<http://upload.wikimedia.org/wikipedia/commons/3/32/EscherichiaColi_NIAID.jpg>
Lucy O'Connell
Plants
can also be genetically engineered
renewable resource
Height image of a thin film
Phase image of a thin film
<http://www.jpk.com/phb-phv-copolymer.181.en.html?image=e50ea86904386bd05a621c8eedc2fa59>
Properties
Uses
Replacement of petroleum based plastics
Due to:
High Tensile strength
Insoluble in water
Non-toxic
BIODEGRADABLE
<http://greenliving4live.com/wp-content/uploads/2013/06/biodegradable-plastic.jpg>
Medical Uses
<http://worldtruth.tv/wp-content/uploads/2012/01/pills-zoom-650x492.jpg>
Due to:
Biocompatibility
Biodegradable
Non-toxic
Little chance of allergic reaction or rejection by the body
<http://www.aesculapusa.com/assets/base/image/aic/products/woundclosure/sutures/Suture-image1_large.jpg>
<http://www.bsbpackaging.com.au/images/plastic_products_all.jpg>
Use of PHBV in Agriculture
Due to:
Biodegradable
Non-toxic
Insoluble in water
<http://www.holistichealthsecrets.com/alternativehealth/wp-content/uploads/2009/02/blue-fertilizer-2.jpg>
The Verdict
Benefits vs. Costs
related to properties
Biodegradability
Benefits
Made from renewable resources
Expensive
Biocompatibility
Costs
Stronger
Not economical
Genetic Engineering
Attractive alternative for the future
Land
Full transcript