Structural and microstructural interpretations of Zn-doped biocompatible bone-like carbonated hydroxyapatite synthesized by mechanical alloying

Lala, S.; Ghosh, Moumita; Das, Prasanta Kumar; Das, Dipankar; Kar, Tanusree; Pradhan, S.K.

doi:10.1107/s1600576714026119

Cited by 17 publications

(4 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Deconvolution of the generally complex carbonate asymmetric stretching region (ν3) is performed by assuming that for this region (1350 cm −1 to 1560 cm −1 ), (a) there is a doublet for every structurally and environmentally distinct carbonate ion; (b) the doublet for A-type carbonate appears at a higher frequency than that of B-type carbonate; (c) the distance (∆ν) between the members of the doublets is greater for A-type doublets; and (d) the appearance of the ν3 region of an AB carbonated apatite can be estimated by summing the spectra of A-and B-type apatites. In one of the few studies of metal-doping of carbonated apatites [21], mechanical alloying of mixtures of CaCO 3 , CaHPO 4 •2H 2 O, and ZnO powders at room temperatures produced incorporation of Zn into the Ca(2) site with dominance of A-type carbonate, as determined by IR spectroscopy.…”

Section: The Environment Modelmentioning

confidence: 97%

“…Aqueous synthesis of an Fe(II) apatite (using FeCl2) indicated substitution for Ca [20]. In one of the few studies of metal-doping of carbonated apatites [21], mechanical alloying of mixtures of CaCO3, CaHPO4•2H2O, and ZnO powders at room temperatures produced incorporation of Zn into the Ca(2) site with dominance of A-type carbonate, as determined by IR spectroscopy.…”

Section: Introduction 1introductionmentioning

confidence: 94%

See 1 more Smart Citation

Location of Carbonate Ions in Metal-Doped Carbonated Hydroxylapatites

Yoder,

Goodman

2023

Minerals

View full text Add to dashboard Cite

The environment model for the description of the location of carbonate ions in apatites predicts that approximately half of the carbonate occupies the apatite channel. This model relies on the influence of entities surrounding the carbonate on its IR spectrum and can be used to determine how various substituents affect the location and structure of that ion. Careful deconvolution (peak-fitting) of the asymmetric carbonate IR region was used to determine the percentage of A-type (channel) ions, A′-type (channel with either a Ca2+ vacancy or substitution of Na+ for Ca2+) ions, and B-type (substitution for phosphate) ions. In our previous applications of this model, we have looked at the effect of alkali metal ions, such as sodium, lithium, and potassium, the ammonium ion, and the rare earth europium ion. In the present work, we explore the incorporation of the first-row transition metal ions and find that they have little effect on the location of the carbonate ion. Like the un-substituted carbonated apatite, these apatites contain about half of the carbonate in the channel, at least in derivatives that contain up to half a mole of the metal ion per mole of apatite. Attempts to incorporate greater amounts of metal ions by aqueous ion-combination reactions generally lead to lower-resolution XRD patterns and IR spectra that produce greater uncertainties in the peak-fitting modeling.

show abstract

Section: The Environment Modelmentioning

confidence: 97%

Section: Introduction 1introductionmentioning

confidence: 94%

Location of Carbonate Ions in Metal-Doped Carbonated Hydroxylapatites

Yoder,

Goodman

2023

Minerals

View full text Add to dashboard Cite

show abstract

“…17 Cationic substitutions are studied as well for A type carbonated hydroxyapatite, such as Zn-doping, reaching a chemical composition close to that of natural biological apatite. 18 The effect of carbonate concentration in controlling bone mineral morphology has been considered and explained for the B type carbonated hydroxyapatite in a recent combined experimental and computational work by Deymier et al 11 The authors have proposed a mechanism elucidating how carbonate substitution affects morphology, shedding light on the key role of carbonation. Actually, computational techniques have been revealed as a fundamental tool for these investigations, especially when related to surface processes.…”

Section: ■ Introductionmentioning

confidence: 99%

“…For applications in bone tissue engineering, the design of carbonate-substituted hydroxyapatite ceramics is very promising due to the inductive effect on osteoclastogenesis in proximity of the implant, allowing for highly resorbable biomaterials . Cationic substitutions are studied as well for A type carbonated hydroxyapatite, such as Zn-doping, reaching a chemical composition close to that of natural biological apatite . The effect of carbonate concentration in controlling bone mineral morphology has been considered and explained for the B type carbonated hydroxyapatite in a recent combined experimental and computational work by Deymier et al The authors have proposed a mechanism elucidating how carbonate substitution affects morphology, shedding light on the key role of carbonation.…”

Section: Introductionmentioning

confidence: 99%

Properties and Reactivity toward Water of A Type Carbonated Apatite and Hydroxyapatite Surfaces

et al. 2018

View full text Add to dashboard Cite

Hydroxyapatite (HA) and carbonated apatite (CAp) constitute the mineral part of biological hard tissue and are key materials in dental implants and bone regeneration. This work provides a density functional theory study of the static and dynamic properties and reactivity towards water of three families of HA and CAp surfaces, namely the (001), (010) and (101) surfaces. For clean materials, surface energy, dipole moment across the slab and vibrational features of the CO 2-3 group in CAp are compared with either the same surface property of HA, or with the bulk feature. The full substitution of OHgroups by CO 2-3 in CAp affects water adsorption features significantly 1 compared to HA. When CO 2-3 is not directly exposed at the surface ((001) and P-rich (010) surfaces) water binding energy is increased/decreased by less than 25% compared to the values for the corresponding HA surfaces. For the CAp Ca-rich (010) surface, in which the CO 2-3 group in direct contact with water, the binding energy shows a 50% increase. For both the HA and CAp (010) stoichiometric surfaces, water is spontaneously dissociated with the resulting OHion shared between three surface Ca ions.

show abstract

Element distribution over the surface of fish scales and its connection to the geochemical environment of habitats: a potential biogeochemical tag

Wang

Lai

Chiang

et al. 2016

Environ Monit Assess

View full text Add to dashboard Cite

The elemental content of fish scales is known to be a reliable biogeochemical tag for tracing the origin of fishes. In this study, this correlation is further confirmed to exist on the surface of fish scales using a novel environmental analytical method, laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), which bypasses several complicated sample preparation procedures such as acid digestion and pre-concentration. The results suggest that the elemental ratios of Sr/Ca, Ba/Ca, and Mn/Ca on the surface of fish scales are strongly correlated with the geochemical environment of their original habitat. This correlation is further demonstrated to be sensitive to variation of water in the habitat due to the adsorbed inorganic ions. In this sense, the limitation of fish scales as a biogeochemical tag is the sensitivity of LA-ICP-MS toward the studied elements. Graphical abstract Illustration of the connection between element distribution pattern over the surface of fish scales and biogeochemical environment of its habitat.

show abstract

Structural and microstructural interpretations of Zn-doped biocompatible bone-like carbonated hydroxyapatite synthesized by mechanical alloying

Cited by 17 publications

References 51 publications

Location of Carbonate Ions in Metal-Doped Carbonated Hydroxylapatites

Location of Carbonate Ions in Metal-Doped Carbonated Hydroxylapatites

Properties and Reactivity toward Water of A Type Carbonated Apatite and Hydroxyapatite Surfaces

Element distribution over the surface of fish scales and its connection to the geochemical environment of habitats: a potential biogeochemical tag

Contact Info

Product

Resources

About