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Virus-Like Particle Facilitated Deposition of Hydroxyapatite Bone Mineral on Nanocellulose after Exposure to Phosphate and Calcium Precursors.

Int J Mol Sci. 2019; 
SinitsynaOlga V,MakarovValentine V,McGeachyKara,BukharovaTatyana,WhaleEric,HepworthDavid,YaminskyIgor V,KalininaNatalia O,TalianskyMichael E,LoveAndr
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Bacterial Expression System For the TMV VLPs, the TMV E50Q and D77N group modified coat protein sequence (TMV VLPs; [16]) was codon optimized for bacterial expression and cloned into a pET-21a(+) vector at the NdeI/XhoI restriction sites with a stop codon to prevent fusion to the neighbouring His Tag by Genscript (Piscataway, NJ, USA). Get A Quote

摘要

We produced and isolated tobacco mosaic virus-like particles (TMV VLPs) from bacteria, which are devoid of infectious genomes, and found that they have a net negative charge and can bind calcium ions. Moreover, we showed that the TMV VLPs could associate strongly with nanocellulose slurry after a simple mixing step. We sequentially exposed nanocellulose alone or slurries mixed with the TMV VLPs to calcium and phosphate salts and utilized physicochemical approaches to demonstrate that bone mineral (hydroxyapatite) was deposited only in nanocellulose mixed with the TMV VLPs. The TMV VLPs confer mineralization properties to the nanocellulose for the generation of new composite materials.

关键词

biotechnology,composite materials,mineralization,plant virus,struc