Ultrasound-Assisted Synthesis and Characterization of Heparin-Coated Eu3+ Doped Hydroxyapatite Luminescent Nanoparticles

Xing, Qingguo; Zhang, Xiaojun; Wu, Dulan; Han, Yingchao; Wickramaratne, M. Nirmali; Dai, Hanren; Wang, Xinyu

doi:10.1016/j.colcom.2019.01.001

Cited by 27 publications

(13 citation statements)

References 34 publications

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“…The smaller peak at 264 nm derived from the Eu-O bonds belong to a process of energy transfer. The peaks at 394 nm, 364 nm, and 381 nm were due to the electric dipole forbidden intra-configurational f-f transitions [28]. Furthermore, with the increase of the fluorine substitution ratio, the intensity of excitation peaks was enhanced gradually.…”

Section: Luminescence Spectrummentioning

confidence: 91%

Effect of the Fluorine Substitution for –OH Group on the Luminescence Property of Eu3+ Doped Hydroxyapatite

et al. 2020

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In this study, different fluoridated hydroxyapatite doped with Eu3+ ion nanoparticles were prepared by the hydrothermal method. The relationship between luminescence enhancement of Eu3+ ions and a fluorine substitution ratio for hydroxyl group in hydroxyapatite was discussed. Moreover, the effect of fluorine substitution for a hydroxyl group on phase composition, crystallinity, and crystal size was studied. Phase composition and chemical structures were identified by X-ray diffraction (XRD) and Fourier Transform Infrared (FT-IR) Spectroscopy analyses. Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) patterns were performed to analyze the morphology and particle size. X-ray Photoelectron Spectroscopy (XPS) patterns were observed to analyze fluorine substitution for the hydroxyl group and chemical state of Eu3+ ions in fluoridated hydroxyapatite. The results of these experiments indicated that the samples with a different fluorine substitution ratio were prepared successfully by maintaining the apatite structure. With an increasing fluorine substitution ratio, the morphology maintained a rod-like structure but the aspect ratio tended to decrease. XPS patterns displayed that the fluorine replaced the hydroxyl group and brought environmental variation. The fluorine ions could affect the crystal field environment and promote luminescence conversion. There was a linear relationship between the fluorine substitution ratio and luminescence enhancement.

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Section: Luminescence Spectrummentioning

confidence: 91%

Effect of the Fluorine Substitution for –OH Group on the Luminescence Property of Eu3+ Doped Hydroxyapatite

et al. 2020

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“…Recent studies use inorganic components, even in form of nanoparticles, to replace photoluminescent organic compounds. Because of the toxicity and the nano-size of this particles, the usage of these materials represents a challenge yet [37,38].…”

Section: Introductionmentioning

confidence: 99%

Photoluminescent Hydroxylapatite: Eu3+ Doping Effect on Biological Behaviour

et al. 2019

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Luminescent europium-doped hydroxylapatite (EuXHAp) nanomaterials were successfully obtained by co-precipitation method at low temperature. The morphological, structural and optical properties were investigated by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier Transform Infrared (FT-IR), UV-Vis and photoluminescence (PL) spectroscopy. The cytotoxicity and biocompatibility of EuXHAp were also evaluated using MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide)) assay, oxidative stress assessment and fluorescent microscopy. The results reveal that the Eu3+ has successfully doped the hexagonal lattice of hydroxylapatite. By enhancing the optical features, these EuXHAp materials demonstrated superior efficiency to become fluorescent labelling materials for bioimaging applications.

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“…In relation to the antibacterial properties, a material composed by HAP, alginate and silver nanoparticles was successfully developed [ 117 ]. Furthermore, in bioimaging applications, the capacity and solvency of hydroxyapatite was demonstrated through its doping with Eu 3+ , showing good biological safety and characteristic luminescence emission [ 118 ], Figure 6 .…”

Section: Applications Of Smart Hydroxyapatite-based Materialsmentioning

confidence: 99%

Advanced Materials Based on Nanosized Hydroxyapatite

et al. 2021

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The development of new materials based on hydroxyapatite has undergone a great evolution in recent decades due to technological advances and development of computational techniques. The focus of this review is the various attempts to improve new hydroxyapatite-based materials. First, we comment on the most used processing routes, highlighting their advantages and disadvantages. We will now focus on other routes, less common due to their specificity and/or recent development. We also include a block dedicated to the impact of computational techniques in the development of these new systems, including: QSAR, DFT, Finite Elements of Machine Learning. In the following part we focus on the most innovative applications of these materials, ranging from medicine to new disciplines such as catalysis, environment, filtration, or energy. The review concludes with an outlook for possible new research directions.

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Ultrasound-Assisted Synthesis and Characterization of Heparin-Coated Eu3+ Doped Hydroxyapatite Luminescent Nanoparticles

Cited by 27 publications

References 34 publications

Effect of the Fluorine Substitution for –OH Group on the Luminescence Property of Eu3+ Doped Hydroxyapatite

Effect of the Fluorine Substitution for –OH Group on the Luminescence Property of Eu3+ Doped Hydroxyapatite

Photoluminescent Hydroxylapatite: Eu3+ Doping Effect on Biological Behaviour

Advanced Materials Based on Nanosized Hydroxyapatite

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