Apatite Ore-based Nanostructures: Novel and Eco-friendly Sorbent for Efficient Removal of Wastewater Containing Pb2+ and Fe3+

Phuong, Nguyen Thu; Nam, Nguyen Hong; Hong, Cao Thi; Dac, Dang Vu Qui; Thu, Le Phuong; Hai, Do Thi; Osial, Magdalena; Giersig, Michael; Thanh, Dinh Thi Mai

doi:10.1007/s11270-023-06547-7

Cited by 6 publications

(2 citation statements)

References 60 publications

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“…Nevertheless, it is worth mentioning that data collected from the literature do not necessarily agree concerning the behaviour of HAp when submitted to a temperature ramp. According to Phuong et al [68], the total weight loss of HAp when subjected to harsh conditions, that is, heated under air up to 800 °C, is insignificant in comparison to what has previously been reported by other authors [69][70][71], as the results of this study show HAp residue values that were close to 99.5% weight. This slight weight loss was essentially attributed to the evaporation of residual water.…”

Section: Coating Characterizationcontrasting

confidence: 63%

Hydroxyapatite-Based Coatings on Silicon Wafers and Printed Zirconia

Chauvin,

Garda,

Snyder

et al. 2023

JFB

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Dental surgery needs a biocompatible implant design that can ensure both osseointegration and soft tissue integration. This study aims to investigate the behavior of a hydroxyapatite-based coating, specifically designed to be deposited onto a zirconia substrate that was intentionally made porous through additive manufacturing for the purpose of reducing the cost of material. Layers were made via sol–gel dip coating by immersing the porous substrates into solutions of hydroxyapatite that were mixed with polyethyleneimine to improve the adhesion of hydroxyapatite to the substrate. The microstructure was determined by using X-ray diffraction, which showed the adhesion of hydroxyapatite; and atomic force microscopy was used to highlight the homogeneity of the coating repartition. Thermogravimetric analysis, differential scanning calorimetry, and Fourier transform infrared spectroscopy showed successful, selective removal of the polymer and a preserved hydroxyapatite coating. Finally, scanning electron microscopy pictures of the printed zirconia ceramics, which were obtained through the digital light processing additive manufacturing method, revealed that the mixed coating leads to a thicker, more uniform layer in comparison with a pure hydroxyapatite coating. Therefore, homogeneous coatings can be added to porous zirconia by combining polyethyleneimine with hydroxyapatite. This result has implications for improving global access to dental care.

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Section: Coating Characterizationcontrasting

confidence: 63%

Hydroxyapatite-Based Coatings on Silicon Wafers and Printed Zirconia

Chauvin,

Garda,

Snyder

et al. 2023

JFB

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“…The FT-IR analysis presented in Figure 3g shows the spectra of HAp, HAp@Cal, and HAP@Cal@5-flu. On the hydroxyapatite spectrum, distinct bands were observed at 470, 559, 599, and 1025 cm −1 which were attributed to vibrations of the PO 3− 4 group [66][67][68][69]. Whereas, asymmetric stretching (1454 cm −1 ) and out-of-plane bending mode (874 cm −1 ) vibrations, were assigned to the CO 2− 3 group.…”

Section: Turbiscan Analysismentioning

confidence: 98%

Nanohydroxyapatite Loaded with 5-Fluorouracil and Calendula officinalis L. Plant Extract Rich in Myo-Inositols for Treatment of Ovarian Cancer Cells

Osial,

Wilczewski,

Szulc

et al. 2023

Coatings

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In this study, the hydroxyapatite (HAp) in the form of nanoparticles was synthesized through the wet co-precipitation method and loaded with plant extract from Calendula officinalis L. rich in biologically active myo-inositol, and the 5-fluorouracil anticancer drug. The obtained nanomaterials have rod-like structures approx. 30 nm in diameter and 100 nm in length. FT-IR analysis results proved the immobilization of biologically active compounds. The loading of plant extract into the carrier improved the stability of colloidal suspension, which was confirmed with turbidimetry. The composite modified with calendula extract and drug (HAp@Cal@5-flu) effectively scavenges the DPPH radicals, with a radical scavenging activity (RSA) of about 20.0 ± 1.3%. The effect is supported by the DFT calculations of the HOMO-LUMO, presenting the chemical reactivity of the molecules loaded into the HAp. The in vitro cytotoxicity results on SKOV-3 ovarian cancer cells show the pronounced cytotoxic effect of the HAp@Cal@5-flu. The calendula extract loading into the carrier provided better interactions with the tumorous biomimetic membranes studied with a Langmuir trough, making it a promising material in nano-biomedicine, including drug delivery and targeted cancer treatment.

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One-pot synthesis of magnetic hydroxyapatite (SPION/HAp) for 5-fluorouracil delivery and magnetic hyperthermia

Osial,

Ha,

et al. 2023

J Nanopart Res

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Apatite Ore-based Nanostructures: Novel and Eco-friendly Sorbent for Efficient Removal of Wastewater Containing Pb2+ and Fe3+

Cited by 6 publications

References 60 publications

Hydroxyapatite-Based Coatings on Silicon Wafers and Printed Zirconia

Hydroxyapatite-Based Coatings on Silicon Wafers and Printed Zirconia

Nanohydroxyapatite Loaded with 5-Fluorouracil and Calendula officinalis L. Plant Extract Rich in Myo-Inositols for Treatment of Ovarian Cancer Cells

One-pot synthesis of magnetic hydroxyapatite (SPION/HAp) for 5-fluorouracil delivery and magnetic hyperthermia

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