Bio Inspired Melanin Based Structural Colors Through Self Assembly

Written By Ming Xiao
Bio Inspired Melanin Based Structural Colors Through Self Assembly
  • Publsiher : Unknown
  • Release : 21 June 2021
  • ISBN :
  • Pages : 139 pages
  • Rating : /5 from reviews
GET THIS BOOKBio Inspired Melanin Based Structural Colors Through Self Assembly


Download or read book entitled Bio Inspired Melanin Based Structural Colors Through Self Assembly by author: Ming Xiao which was release on 21 June 2021 and published by Unknown with total page 139 pages . This book available in PDF, EPUB and Kindle Format. Structural colors enable creation of a spectrum of non-fading visible colors without using pigments, potentially reducing the use of toxic metal oxides and conjugated organic pigments. Although many top-down and bottom-up methods have been used to produce structurally colored materials, significant challenges remain to achieve the contrast needed for producing a complete gamut of colors and a scalable process for industrial applications. Nature provides some intriguing palettes of structural colors in avian feathers using three main ingredients, melanin, keratin, and air. Recently, we have demonstrated that the rainbow-like iridescent colors in a single feather of Australia pigeon (common bronzewing) are caused by a slight variation of the layer thickness of multilayered melanosome (organelles filled with melanin) nanostructures. Learning from these color production mechanisms, we have synthesized melanin nanoparticle (SMNPs) ranging from 100-200 nm in diameter. Using an evaporation-based process we have assembled these nanoparticles to produce a wide spectrum of visible colors. We have shown the high absorption of SMNPs leads to more saturated colors than those produced using polystyrene or glass nanospheres. In addition, SMNP films show rapid, large, reversible color changes responsive to variation in ambient humidity, due to swelling/shrinking of SMNPs. To produce brighter colors in a scalable process, we have designed core-shell nanoparticles with melanin core (RI ~1.74) and silica shell (RI ~ 1.45). A one-pot reverse emulsion process has been used to assemble these core-shell nanoparticles to produce a full-spectrum of colorful supraballs. Similar to mixing pigmentary colors, we can also blend these core-shell SMNPs with different shell thicknesses to control the spacing and continuously tune colors. The new bio-inspired melanin-based structurally materials pave the way for producing novel photonic inks, suitable for applications like painting, textiles, and displays.

Bio Inspired Melanin Based Structural Colors Through Self Assembly

Bio Inspired Melanin Based Structural Colors Through Self Assembly
  • Author : Ming Xiao
  • Publisher : Unknown
  • Release Date : 2017
  • Total pages : 139
  • ISBN :
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Summary : Structural colors enable creation of a spectrum of non-fading visible colors without using pigments, potentially reducing the use of toxic metal oxides and conjugated organic pigments. Although many top-down and bottom-up methods have been used to produce structurally colored materials, significant challenges remain to achieve the contrast needed for producing ...

Soft Matter And Biomaterials On The Nanoscale The Wspc Reference On Functional Nanomaterials Part I In 4 Volumes

Soft Matter And Biomaterials On The Nanoscale  The Wspc Reference On Functional Nanomaterials   Part I  In 4 Volumes
  • Author : Anonim
  • Publisher : World Scientific
  • Release Date : 2020-06-24
  • Total pages : 1876
  • ISBN :
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Summary : Soft and bio-nanomaterials offer a tremendously rich behavior due to the diversity and tailorability of their structures. Built from polymers, nanoparticles, small and large molecules, peptoids and other nanoscale building blocks, such materials exhibit exciting functions, either intrinsically or through the engineering of their organization and combination of blocks. Thus, ...

Macromolecular Engineering

Macromolecular Engineering
  • Author : Anonim
  • Publisher : Elsevier
  • Release Date : 2021-02-09
  • Total pages : 310
  • ISBN :
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Summary : Macromolecular Engineering: Design, Synthesis and Application of Polymers explores the role of macromolecular engineering in the development of polymer systems with engineered structures that offer the desired combination of properties for advanced applications. This book is organized into sections covering theory and principles, science and technology, architectures and technologies, and ...

Full Spectrum

Full Spectrum
  • Author : Adam Rogers
  • Publisher : Houghton Mifflin
  • Release Date : 2021
  • Total pages : 336
  • ISBN :
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Summary : A lively account of our age-old quest for brighter colors, which changed the way we see the world, from the best-selling author ofProof: The Science of Booze From kelly green to millennial pink, our world is graced with a richness of colors. But our human-made colors haven't always matched nature's ...

Bioinspired Inorganic Materials

Bioinspired Inorganic Materials
  • Author : Simon Hall
  • Publisher : Royal Society of Chemistry
  • Release Date : 2019-08-28
  • Total pages : 283
  • ISBN :
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Summary : The development of novel materials whose structure, properties or function are inspired by nature or living matter is a wide and dynamically evolving field. There is virtually no field of scientific endeavour that has not felt the touch of the 'bioinspired' ethos. Bioinspired Inorganic Materials provides an up-to-date review of ...