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The user has requested enhancement of the downloaded file. The averaged pore diameter distribution is shown in d. The CaCO3 layers were grown in the identical fashion as described in the Methods section. Following AAC deposition and crystallisation, PVP was spin coated from methanol solution to form nonporous layers matching the thickness of the organic interlayers in Fig. Already the second calcite layer in a was unstable and tended to peel off. This effect was aggravated for the third mineral layer in b, which peeled of before crystallisation, making the deposition of further layers impractical.
This result is in agreement with earlier work by Wei et al? The faceting indicates single crystalline domains, of which several are in view in c, and one in view in d. All crystals have the same crystal facet in the plane perpendicular to the surface normal. This is an indication that all crystal domains in Fig. This alignment is indicative of preferred nucleus orientation during nucleation on the initial PAA surface.
Manual extraction of the grain boundary lines, followed by image analysis, shown inset. The difference in appearance is a result of optical absorption when viewing multiple layers through one another. The overall mean values were Note that calcite in Fig. Related Papers. A review of experimental techniques to produce a nacre-like structure.
By Julian Wharton. By Julyan Cartwright. By Dr. Sabrina Stark. Tailored order: The mesocrystalline nature of sea urchin teeth q. By Richie Abel. Biomimetic Lessons Learnt from Nacre. By Kalpana Katti. Download pdf. Remember me on this computer. Enter the email address you signed up with and we'll email you a reset link. Need an account?
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Biomimetic Layer-By-Layer Assembly of Artificial Nacre
Nacre is a technologically remarkable organic-inorganic composite biomaterial. It consists of an ordered multilayer structure of crystalline calcium carbonate platelets separated by porous organic layers. This microstructure exhibits both optical iridescence and mechanical toughness, which transcend those of its constituent components. Replication of nacre is essential for understanding this complex biomineral, and paves the way for tough coatings fabricated from cheap abundant materials. Fabricating a calcitic nacre imitation with biologically similar optical and mechanical properties will likely require following all steps taken in biogenic nacre synthesis.
Biomimetic layer-by-layer assembly of artificial nacre
Biomimetic layer-by-layer assembly of artificial nacre.
Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. DOI: Finnemore and Pedro Cunha and Tamaryn A. Nacre is a technologically remarkable organic-inorganic composite biomaterial.