Silicon-substituted hydroxyapatite

Arshad, Aysha; Khan, Ather Farooq

doi:10.1016/b978-0-08-102834-6.00012-4

Cited by 2 publications

(1 citation statement)

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“…The intensity of water band in region 3500 -3000 cm -1 increased compared to Mg-HA. Fading of OHbands at about 3570 cm -1 and 630 cm -1 which are typically present in FTIR spectrum of HA was explained by reduction of the number of OHgroups in order to maintain charge balance due to PO 4 3-•substitution with •SiO 4 4- [16]. This also confirms partial incorporation of SiO 4 4into the HA [17].…”

Section: Mg Si-substituted Hamentioning

confidence: 60%

Mg and Si substituted hydroxyapatite: Behaviour in simulated body fluid

et al. 2022

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Due to its similarity with biological apatite found in vertebrate hard tissues, calcium hydroxyapatite is one of the most investigated materials in bone tissue engineering. As the biological apatite is not stoichiometric, ion substituted hydroxyapatites attract much atention since they more closely mimic the composition of natural bone. Although there are many investigations of the influence of foreign ions on the structure and physico-chemical properties of ion-substituted hydroxyapatites, there is scarse information on their behaviour in different media. In the present study, magnesium (Mg), that plays a key role in bone metabolism and silicon (Si), that is necessary for normal skeletal development, were used as ion substitutes. The behaviour of Mg and Si substituted hydroxyapatite in simulated body fluid was investigated by XRD, FTIR and SEM. Obtained results confirmed great potential of these substituted hydroxyapatites for biomedical applications.

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Section: Mg Si-substituted Hamentioning

confidence: 60%