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Protein disorder-order interplay to guide the growth of hierarchical mineralized structures

Elsharkawy, S; Al-Jawad, M; Pantano, MF; Tejeda-Montes, E; Mehta, K; Jamal, H; Agarwal, S; Shuturminska, K; Rice, A; Tarakina, NV; Wilson, RM; Bushby, AJ; Alonso, M; Rodriguez-Cabello, JC; Barbieft, E; Hernandez, AD; Stevens, MM; Pugno, NM; Anderson, P; M

NATURE COMMUNICATIONS
2018
VL / 9 - BP / - EP /
abstract
A major goal in materials science is to develop bioinspired functional materials based on the precise control of molecular building blocks across length scales. Here we report a protein-mediated mineralization process that takes advantage of disorder-order interplay using elastin-like recombinamers to program organic-inorganic interactions into hierarchically ordered mineralized structures. The materials comprise elongated apatite nanocrystals that are aligned and organized into microscopic prisms, which grow together into spherulite-like structures hundreds of micrometers in diameter that come together to fill macroscopic areas. The structures can be grown over large uneven surfaces and native tissues as acid-resistant membranes or coatings with tuneable hierarchy, stiffness, and hardness. Our study represents a potential strategy for complex materials design that may open opportunities for hard tissue repair and provide insights into the role of molecular disorder in human physiology and pathology.
150th Global

AccesS level

DOAJ Gold, Green Published

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PROYECTO FINANCIADO POR PLAN NACIONAL DE INVESTIGACIÓN AGENCIA ESTATAL DE INVESTIGACIÓN, MINISTERIO DE CIENCIA E INNOVACIÓN. PID2019-109127RB-I00