Nano-Biomimetics Team Г

Nano-biomimetics? What is nano-biomimetics? What is nano-biomimetics? Biological self-assembly Biological self-assembly Viral assembly Viral assembly Gecko Feet Gecko Feet

What is nano-biomimetics? Utilizes biological mechanisms to create materials Utilizes biological mechanisms to create materials Mimicking biological self-assembly processes Mimicking biological self-assembly processes Using single biological units as a building block along with inorganic materials Using single biological units as a building block along with inorganic materials Mimics biology at the molecular level Mimics biology at the molecular level Synthesizing structures that mimic biological structures Synthesizing structures that mimic biological structures

Utilizing biological mechanisms Atom-precise manipulation yields composite materials and nano-scale structures with desirable properties Atom-precise manipulation yields composite materials and nano-scale structures with desirable properties Parallel self-assembly processes achieve precision with high speed and reproducibility Parallel self-assembly processes achieve precision with high speed and reproducibility

Biological self-assembly Bottom-up fabrication process Bottom-up fabrication process Continuing miniaturization of devices in nanotechnology Continuing miniaturization of devices in nanotechnology Nature already assembles its smallest components into ordered structures Nature already assembles its smallest components into ordered structures

Biological self-assembly: applications Genetically Engineered Proteins for Inorganics (GEPIs) Genetically Engineered Proteins for Inorganics (GEPIs) Methods Methods Biopatterning Biopatterning Neuron growth on patterned substrates Neuron growth on patterned substrates

Biological self-assembly: applications

Viral assembly: biology Abalone shell mostly chalk, but 3000x stronger because of crystal structure Abalone shell mostly chalk, but 3000x stronger because of crystal structure Very difficult to assemble crystals, requires precise control in 3-D Very difficult to assemble crystals, requires precise control in 3-D

Viral assembly: biomimetic Genetically engineered virus attaches to molecule of building material Genetically engineered virus attaches to molecule of building material Viruses orient themselves in solution, producing well-ordered liquid crystal Viruses orient themselves in solution, producing well-ordered liquid crystal

Viral assembly: applications Procedure can easily scale up Procedure can easily scale up Multiple applications Multiple applications Better materials Better materials

Mimicking biological structures Top-down approach using lithography, scanning probes, CVD, sputter coating, and many other techniques normally unassociated with biology Top-down approach using lithography, scanning probes, CVD, sputter coating, and many other techniques normally unassociated with biology Requires very precise manipulation Requires very precise manipulation

Gecko feet: biology Millions of hairs called setae Millions of hairs called setae Fiber radius is nanometer-scale Fiber radius is nanometer-scale Adhesion due to van der Waals and capillary forces Adhesion due to van der Waals and capillary forces

Gecko feet: biomimetic Use electron beam lithography and dry etching to create synthetic polymer hairs Use electron beam lithography and dry etching to create synthetic polymer hairs Attach to flexible base Attach to flexible base Palm-sized piece can support a human Palm-sized piece can support a human

Gecko feet: applications

Nano-biomimetics! Create materials with novel properties Create materials with novel properties Synthesize existing bio-materials in larger quantities Synthesize existing bio-materials in larger quantities Integrate biomolecules and materials with inorganic ones for hybrid systems Integrate biomolecules and materials with inorganic ones for hybrid systems

References Bio-assembly Bio-assembly Sarikaya, Mehmet. "Moleucular biomimetics: nanotechnology through biology.“ Nature Materials Sept Sarikaya, Mehmet. "Moleucular biomimetics: nanotechnology through biology.“ Nature Materials Sept Gyorvary, Erika S. "Biomimetic Nannostructure Fabrication: Nanolithographic Lateral Patterning and Self-Assembly of Functional Bacterial S-Layers at Silicon Supports." 11 Dec Nano Letters. Vol Gyorvary, Erika S. "Biomimetic Nannostructure Fabrication: Nanolithographic Lateral Patterning and Self-Assembly of Functional Bacterial S-Layers at Silicon Supports." 11 Dec Nano Letters. Vol Zhang, Shuguang. "Fabrication of novel biomaterials through molecular self-assembly." Nature biotechnology Oct Zhang, Shuguang. "Fabrication of novel biomaterials through molecular self-assembly." Nature biotechnology Oct Quinion, Michael. "Turns of Phrase: Biomimetics." World Wide Words. 22 Nov Quinion, Michael. "Turns of Phrase: Biomimetics." World Wide Words. 22 Nov Viral Assembly: Viral Assembly: Gecko foot: Gecko foot: Spiderman: Spiderman: