Morphology Controlling of CaCO3 in 3D Bacterial Cellulose Nanofibres

Hierarchical structure of biomaterials comprised of three dimensional organic matrix and inorganic minerals exhibit unique morphologies and outstanding properties. Herein, modified bacterial cellulose (BC) nanofibres/CaCO3 composites are prepared using the ammonium carbonate diffusion method at room temperature. The copper coinage shaped aragonite has been synthesized in the 3D matrix and investigated by X-ray powder diffraction, Fourier transform infrared spectrometry, and scanning electron microscopy. It can be concluded that the carboxyl modified BC nanofibres can control the mineralization in vivo by physical confinement within the organic structure to allow the growth of non-equilibrium morphology and chemical interaction to influence polymorph selection and oriented nucleation. The system which was to mimic the biomineralization in vivo can help to produce bio-mimetic materials similarly in living creatures.