Spider Silk from Goats

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Spider Silk from Goats

• By Dhwani Patel
• MEEN 3344

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Spider Silk

• Spider silk is extremely strong. It is has
  tensile strength greater then steel and is more
  flexible.
• A 747 Boeing jet could be stopped in flight by a
  strand that is pencil thick.
• This fiber is ultra light, about 25 lighter then
  traditional polymers.

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Spider Silk Cont.

• elastic modulus 10-50 GigaPascals, and has
  tensile strength of 1.1-1.4 GPa
• The silk is safe to be used to replace humans
  body parts giving the user wider range in motion
  then the traditional replacements available today.

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Problems with Spider Silk

• It is extremely difficult to create Spider Silk
  on a commercial scale
• Nexia, a Canadian company is hoping to create an
  unlimited supply of Spider Silk in goat milk.
• Nexia has cloned a goat with spider genes.

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Webster and Pete

• Webster and Pete are the first goats who have
  this gene.
• When they mate their kids are hoped to produce
  milk which has the silk protein.
• The silk milk from the goats will then be used
  to create fibers known as Biosteel.

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Documentation

• http//news.bbc.co.uk/1/hi/sci/tech/889951.stm
• http//www.xs4all.nl/ednieuw/Spiders/Info/spindra
  ad.htm
• http//www.harveygallery.com/a0-18A20cap20Spider
  20Web20AAA.jpg
• http//images.google.com/imgres?imgurlhttp//www.
  srv.net/dkv/hobospider/index_files/malehob2.jpgi
  mgrefurlhttp//www.onewest.net/dkv/hobospider/h
  430w640sz17hlenstart4tbnidCPmQCRYaOau0Q
  Mtbnh92tbnw137prev/images3Fq3Dspider26sv
  num3D1026hl3Den26lr3D26sa3DN
• http//en.wikipedia.org/wiki/Spider_silk
• http//64.233.161.104/search?qcachecy0LyoTI-msJ
  tc.engr.wisc.edu/Steuber/papers/2002/spider_p_1st.
  docstrengthandstiffnessspidersilkhlenglus
  ctclnkcd3