Abstract
This work unveils a straightforward and controlled biomimetic synthesis (combined modified coprecipitation and sonochemistry method) of rod-like two-dimensional (2D) hydroxyapatite (HA) nanoparticles with an aspect ratio of ∼13.2 and their mesoporous nanorods (small and large pore) by fine regulation of the morphology using a β-cyclodextrin (β-CD) oligomer. Various methodical characterization results such as from wide-angle X-ray diffraction, high-resolution transmission electron microscopy (HRTEM), Brunauer–Emmett–Teller analysis, and Fourier transform infrared spectroscopy comprehensively established that β-CD acts as an effective nucleating agent by virtue of strong adsorption of α-d-glucopyranoside moieties of β-CD on the surface of calcium phosphate as well as owing to electrostatic interactions due to the toroid and cyclic structure of β-CD. Besides, improved crystallinity of HA nanorods, as well as induced crystal growth of nanorods along the [110] crystallographic direction, was observed from the ...
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