Biopolymers In Medical Implants 1s2y6l

BIOPOLYMERS IN MEDICAL IMPLANTS Implantable devices mimics a body part.  Biopolymers are polymers produced by living organisms.  Well defined, complex structures  Biodegradability  No immunogenic rejection 

1877-7058 © 2017 The Authors. Published by Elsevier Ltd. Peer-review under responsibility of the scientific committee of the 3rd International Conference on Natural Fibers: Advanced Materials for a Greener World 10.1016/j.proeng.2017.07.034

CLASSIFICATION OF BIOPOLYMERS CLASSIFICATION

POLYSACCHRIDES

ORIGIN

BIOPOLYMERS

PLANT /ALGAL

Starch (amylose/amylopectin), Cellulose, Agar, Alginate, Carrageenan, Pectin

ANIMAL

Chitin/chitosan, Hyaluronic acid

BACTERIAL

Xanthan, Dextran, GelIan, Cellulose (bacterial)

FUNGUL

Pullulan, Elsinan,Yeast glucans

LIPIDS

Acetoglycerides, waxes, surfactants, Emulsan

PROTIEN

Silks, Collagen/gelatina, Elastin, Resilin, Adhesives, Polyamino acids,

POLYSTERS

Polyhydroxyalkanoates, Polylactic acid

SPECILALITY POYLMERS

Shellac, Poly-gamma-glutamic acid, Natural rubber, Synthetic polymers

PLA (polylactic acid) Higher abundance, lower cost  Bioabsorbable  PLA composite scaffold 

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a carrier for the recombinant bone morphogenetic protein 2 (rhBMP2)

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improved mechanical properties non-cytotoxicity

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PLA-PGA (polyglycolic acid) copolymers orthopedic applications Compression-molded scaffolding to facilitate the formation of new cartilage

PLA (polylactic acid) 

Production of braided corrugated vascular prosthesis

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PLA and polyethylene terephthalate (PET) re-establishes blood flow in damaged segments

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A) Braided vascular prosthesis as a medical device for blood vessel B) PLA-based mimicking ligament

SILK 

Raw silk thread produced by a silkworm

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fibroid in the core silk fibroin glue-like coating consisting of sericin proteins

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