Influence of zinc incorporation into non-stoichiometric hydroxyapatite on zeta potential
Source abstract
Abstract
This work studied zinc incorporation into the non-stoichiometric hydroxyapatite (nHAp) and its influence on ξ potential via investigation on microstructure of synthesised powders. Four hydroxyapatite powders containing zinc cations (2–8 mol.-%) were synthesised via precipitation method. The results showed that zinc cations could not be replaced in calcium vacancies in the sample with 2 mol.-% zinc incorporation. According to the results, substitution of Zn into nHAp occurred completely in the sample with 6 mol.-% of zinc fraction. The calcium vacancies were partially substituted by the zinc cations in the samples containing 4 and 8 mol.-% zinc fraction. The ξ potential measurements indicated that positive charges were formed in all powders. In addition, the ξ potential of incorporated samples that Zn2+ was displaced from calcium vacancies was higher than others due to formation of extrinsic defect.
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OpenAlex topics: Bone Tissue Engineering Materials · Advancements in Battery Materials · Titanium Alloys Microstructure and Properties
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