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Nanotechnology and Biomimicry

Nanotechnology and Biomimicry. Anne Lynn Gillian-Daniel, Ph.D. Ben Taylor Interdisciplinary Education Group University of Wisconsin-Madison. “Nano” All around Us. Self-cleaning glass. VX Nano Cordless Laser Mouse. Apparel with silver nanoparticles. What is nanotechnology?.

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Nanotechnology and Biomimicry

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  1. Nanotechnology and Biomimicry Anne Lynn Gillian-Daniel, Ph.D. Ben Taylor Interdisciplinary Education Group University of Wisconsin-Madison
  2. “Nano” All around Us Self-cleaning glass VX Nano Cordless Laser Mouse Apparel with silver nanoparticles
  3. What is nanotechnology? Nanotechnology is the understanding and control of matter 1 to 100 nanometers in size. The nanometer is extremelysmall. At the nanometer scale, many materials behave differently. We can harness this new behavior to make new materials.
  4. Exactly how small is a nanometer? 1/100th of a meter (centimeter) meter 1/1000th of a meter (millimeter) All these are still visible with your eyes.
  5. How small can you see? A human hair is ~40 µm One red blood cell is 6-8 µm A micrometer (µm) is one-millionth of a meter Nanoscale objects are 1,000 times smaller!!!
  6. . . . Smaller than you can see! A nanometer (nm) is one billionthof a meter!! Viruses 3-50 nm DNA 1-2 nm
  7. Nanometer:Part of the Metric System WI is 420 km wide 11-year-old human ~ 1.4 m Hair: ~40m DNA: 1-2 nm
  8. Nano Fun Facts In the time it takes to read this sentence, your fingernails will have grown approximately one nanometer (1 nm). A nm is to a meter as an eye blink is to one year. www.badradical.net www.9calendar.com/
  9. Smallness leads to new properties Color Melting point Strength Conductivity Reactivity Macro Gold Macro Aluminum Nano Aluminum Nano Gold
  10. Nature to Nanotech:Biomimicry What is biomimicry? Biomimicry is imitating nature’s best ideas to solve problems.
  11. Nature’s inspirationBiomimicry Burrs Velcro Fast Swimsuit Sharkskin Getty Images courtesy of Speedo http://sbio.uct.ac.za/Webemu/ gallery/descriptions.php http://www.itsnature.org Self-cooling Buildings Termite Dens Eastgate Centre in Harare, Zimbabwe , Mandy Patter, Creative Commons Alexander Johmann/Flickr
  12. Iridescence Soap Bubble Peacock feather close-up Why is there iridescence in nature? Attract mates or pollinators Camouflage Blue Bedder flowers Colors change depending on the angle from which the surface is viewed Different thicknesses (bubbles) or nano features (peacock) create iridescence
  13. Blue Morpho Butterfly The iridescent color is created by nanometer-sized structures on the butterflies wing scales.
  14. Blue Morpho Butterfly Wing This microscope image shows the tree-like rib structures of a cross-section of the wing. These nano-scale ribs reflect light to create iridescent colors. Scanning Electron Microscope image of the Blue Morpho butterfly showing nanoscale features responsible for iridescence. (Shinya Yoshioka, Osaka University)
  15. Peacock feathers are iridescent
  16. Peacock feathers close up This nanoscale pattern reflects light to create iridescent colors. Nano size holes repeat as a pattern on the nano scale SEM of a cross section of one barbule (Zi et al, PNAS 2003.)
  17. Biomimicry of Iridescence Biomimicry of iridescence is used for security on currency, photo identification, and credit cards.
  18. Biomimicry of Iridescence Qualcomm has a new e-screen that mimics the iridescence of the blue Morpho butterfly. The screen gets brighter in sunlight.
  19. The Lotus Effect Nano-scale features, along with a waxy non-polar coating, together create a superhydrophobic surface. (very water repelling) The lotus leaf is said to be “self-cleaning” because droplets of water roll off and remove dirt particles.
  20. The Lotus Effect Nano sized bumps
  21. Biomimicry of The Lotus Effect Self-cleaning glass had nanostructures that prevent water from sticking to the glass. Lotusan paint mimics the lotus effect’s self-cleaning properties. Nano-tex fabric repels liquids and stains.
  22. Ormia Ears Professor Nader Behdad of the UW-Madison is an engineer who is interested in the ears of Ormiaflies
  23. Ormia Ears Time Difference Time Difference
  24. Biomimicry of Ormia Ears Antennae Hearing Aids Microphones
  25. What would inspire you in nature to solve a human problem?
  26. Acknowledgments MRSEC Personnel and Collaborators NISE Net Personnel and Collaborators College of Engineering National Science Foundation NSF Materials Research Science and Engineering Center on Nanostructured Interfaces (DMR-0520527 and DMR-0079983) NSF Internships in Public Science Education (DMR-0424350) NSF Nanoscale Informal Science Education Network (ESI-053253) This presentation is based upon work supported by the National Science Foundation under the following DMR grants: #0424350 (IPSE), #0520527 and #0779983 (MRSEC); and ESI grant #053253 Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessary reflect the views of the National Science Foundation.
  27. Thank You Anne Lynn Gillian-Daniel, agillian@wisc.edu Ben Taylor, bltaylor2@wisc.edu Our Website: www.mrsec.wisc.edu/nano
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