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Anenburg M, Panikorovskii TL, Jennings ES, Shendrik RY, Antonov AA, Gavrilenko V. An Apatite-Group Praseodymium Carbonate Fluoroxybritholite: Hydrothermal Synthesis, Crystal Structure, and Implications for Natural and Synthetic Britholites. Inorg Chem 2024; 63:11788-11801. [PMID: 38867694 PMCID: PMC11200260 DOI: 10.1021/acs.inorgchem.4c01490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/19/2024] [Accepted: 05/20/2024] [Indexed: 06/14/2024]
Abstract
Britholites are the lanthanide-silica-rich end-members of the apatite group, commonly studied for their optical properties. Here, we show ∼50-100 μm single crystals synthesized hydrothermally at 650-500 °C and 500-300 MPa composed of a solid solution between Ca2Pr3(SiO4)3F-fluorbritholite and CaPr4(SiO4)3O-oxybritholite, with a significant carbonate component substitution, via C4+ replacing Si4+. Single-crystal X-ray diffraction and density functional theory computations show that a planar carbonate group occupies the face of a now-vacant silica tetrahedron. This modifies Pr-O bond lengths, diversifying lanthanide optical emission wavelengths. Our britholite was synthesized in geologically reasonable conditions and compositions, suggesting that carbonated oxybritholites could exist as yet-unrecognized natural minerals.
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Affiliation(s)
- Michael Anenburg
- Research
School of Earth Sciences, Australian National
University, Canberra 2600, Australia
| | - Taras L. Panikorovskii
- Laboratory
of Nature-Inspired Technologies and Environmental Safety of the Arctic,
Kola Science Centre, Russian Academy of
Sciences, Apatity 184200, Russia
| | - Eleanor S. Jennings
- School
of Natural Sciences, Birkbeck, University
of London, London WC1E 7HX, United
Kingdom
| | - Roman Yu. Shendrik
- Vinogradov
Institute of Geochemistry, Siberian Branch, Russian Academy of Sciences, Irkutsk 664033, Russia
| | - Andrey A. Antonov
- Laboratory
of Nature-Inspired Technologies and Environmental Safety of the Arctic,
Kola Science Centre, Russian Academy of
Sciences, Apatity 184200, Russia
| | - Veronika Gavrilenko
- Vinogradov
Institute of Geochemistry, Siberian Branch, Russian Academy of Sciences, Irkutsk 664033, Russia
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2
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Quindoza GM, Nakagawa Y, Anraku Y, Ikoma T. Adsorption of l-buthionine sulfoximine on Bi(III) and Eu(III) co-substituted hydroxyapatite nanocrystals for enhancing radiosensitization effects. Colloids Surf B Biointerfaces 2023; 228:113403. [PMID: 37329871 DOI: 10.1016/j.colsurfb.2023.113403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/28/2023] [Accepted: 06/13/2023] [Indexed: 06/19/2023]
Abstract
Cancer theranostics combines therapeutic and diagnostic capabilities into a single system to treat cancer efficiently. Biocompatible nanomaterials can be engineered to exhibit cancer theranostic functions, for instance radiosensitization and photoluminescence. In this study, trivalent Bi and Eu ions were co-substituted into the lattice of hydroxyapatite (Bi(III):Eu(III) HAp) to develop a cancer theranostic nanocrystal. Bi provides radiosensitization capabilities while Eu imparts photoluminescence properties. To complement the radiotherapeutic function, l-buthionine sulfoximine (l-BSO) was adsorbed onto the nanocrystal surface. l-BSO inhibits the biosynthesis of cellular antioxidants, which can enhance radiosensitization effects. The Bi(III):Eu(III) HAp nanocrystals were prepared via a hydrothermal method. Structural and compositional analyses showed that both Bi and Eu ions were substituted into the HAp lattice. l-BSO was adsorbed onto the surface via electrostatic interactions between the charged carboxyl and amino groups of l-BSO and the surface ions of the nanocrystals. The adsorption followed the Langmuir isotherm model, implying a homogeneous monolayer adsorption. The l-BSO adsorbed Bi(III):Eu(III) HAp nanocrystals were found to have negligible cytotoxicity except the setting with l-BSO adsorbed amounts of 0.44 μmol/m2. This l-BSO amount was found to be high enough to elicit cytotoxicity due to l-BSO being released and causing excessive antioxidant depletion. Gamma ray irradiation clearly activated the cytotoxicity of the samples and increased the cell death rate, confirming radiosensitization abilities. At a constant amount of nanocrystals, the cell death rate increases with l-BSO concentration. This indicates that l-BSO can enhance the radiosensitization effect of the Bi(III):Eu(III) HAp nanocrystals.
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Affiliation(s)
- Gerardo Martin Quindoza
- Tokyo Institute of Technology, School of Materials and Chemical Technology, Department of Materials Science and Engineering, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Yasuhiro Nakagawa
- Tokyo Institute of Technology, School of Materials and Chemical Technology, Department of Materials Science and Engineering, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Yasutaka Anraku
- Tokyo Institute of Technology, School of Materials and Chemical Technology, Department of Materials Science and Engineering, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Toshiyuki Ikoma
- Tokyo Institute of Technology, School of Materials and Chemical Technology, Department of Materials Science and Engineering, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan.
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Biomimetic Citrate-Coated Luminescent Apatite Nanoplatforms for Diclofenac Delivery in Inflammatory Environments. NANOMATERIALS 2022; 12:nano12030562. [PMID: 35159907 PMCID: PMC8838995 DOI: 10.3390/nano12030562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/24/2022] [Accepted: 02/02/2022] [Indexed: 11/16/2022]
Abstract
Luminescent nanoparticles are innovative tools for medicine, allowing the imaging of cells and tissues, and, at the same time, carrying and releasing different types of molecules. We explored and compared the loading/release ability of diclofenac (COX-2 antagonist), in both undoped- and luminescent Terbium3+ (Tb3+)-doped citrate-coated carbonated apatite nanoparticles at different temperatures (25, 37, 40 °C) and pHs (7.4, 5.2). The cytocompatibility was evaluated on two osteosarcoma cell lines and primary human osteoblasts. Biological effects of diclofenac-loaded-nanoparticles were monitored in an in vitro osteoblast’s cytokine–induced inflammation model by evaluating COX-2 mRNA expression and production of PGE2. Adsorption isotherms fitted the multilayer Langmuir-Freundlich model. The maximum adsorbed amounts at 37 °C were higher than at 25 °C, and particularly when using the Tb3+ -doped particles. Diclofenac-release efficiencies were higher at pH 5.2, a condition simulating a local inflammation. The luminescence properties of diclofenac-loaded Tb3+ -doped particles were affected by pH, being the relative luminescence intensity higher at pH 5.2 and the luminescence lifetime higher at pH 7.4, but not influenced either by the temperature or by the diclofenac-loaded amount. Both undoped and Tb3+-doped nanoparticles were cytocompatible. In addition, diclofenac release increased COX-2 mRNA expression and decreased PGE2 production in an in vitro inflammation model. These findings evidence the potential of these nanoparticles for osteo-localized delivery of anti-inflammatory drugs and the possibility to localize the inflammation, characterized by a decrease in pH, by changes in luminescence.
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Influence of Terbium Ions and Their Concentration on the Photoluminescence Properties of Hydroxyapatite for Biomedical Applications. NANOMATERIALS 2021; 11:nano11092442. [PMID: 34578759 PMCID: PMC8466322 DOI: 10.3390/nano11092442] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/13/2021] [Accepted: 09/16/2021] [Indexed: 12/14/2022]
Abstract
A new generation of biomaterials with terbium-doped hydroxyapatite was obtained using a coprecipitation method. The synthesis of new materials with luminescent properties represents a challenging but important contribution due to their potential applications in biomedical science. The main objective of this study was to revel the influence of terbium ions on the design and structure of hydroxyapatite. Different concentrations of terbium, described by the chemical formula Ca10−xTbx(PO4)6(OH)2, where x is in the range of 0 to 1, were considered. The consequence of ion concentration on hydroxyapatite morphology was also investigated. The morphology and structure, as well as the optical properties, of the obtained nanomaterials were characterized using X-ray powder diffraction analysis (XRD), Fourier Transform Infrared spectrometry (FTIR), SEM and TEM microscopy, UV-Vis and photoluminescence spectroscopies. The measurements revealed that terbium ions were integrated into the structure of hydroxyapatite within certain compositional limits. The biocompatibility and cytotoxicity of the obtained powders evaluated using MTT assay, oxidative stress assessment and fluorescent microscopy revealed the ability of the synthesized nanomaterials to be used for biological system imaging.
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Paduraru AV, Musuc AM, Oprea OC, Trusca R, Iordache F, Vasile BS, Andronescu E. Synthesis and Characterization of Photoluminescent Ce(III) and Ce(IV) Substituted Hydroxyapatite Nanomaterials by Co-Precipitation Method: Cytotoxicity and Biocompatibility Evaluation. NANOMATERIALS 2021; 11:nano11081911. [PMID: 34443742 PMCID: PMC8399908 DOI: 10.3390/nano11081911] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 07/20/2021] [Accepted: 07/22/2021] [Indexed: 01/19/2023]
Abstract
Improved compounds of Ce(III) and Ce(IV)-doped hydroxyapatite (Ca10-xCex(PO4)6(OH)2) with different concentrations such as x = 0.5, 1, 2.5, 5, and 10%, obtained by the simple co-precipitation method were synthesized. The cerium (3+) and cerium (4+)-doped hydroxyapatite were evaluated for biocompatibility and fluorescence properties. It was found that the cerium-HAp powders were non-toxic, even at higher level of concentration. The synthesized powders were further characterized by FTIR spectrometry, UV-Vis spectroscopy, XRD diffraction, SEM and TEM analysis. Therefore, the present study proves that the developed cerium (3+) and cerium (4+)-doped hydroxyapatite, respectively can be widely used as luminescent labeling materials, with improved biological properties.
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Affiliation(s)
- Andrei Viorel Paduraru
- Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, University “Politehnica” of Bucharest, 060042 Bucharest, Romania; (A.V.P.); (A.M.M.); (O.C.O.); (R.T.); (E.A.)
- National Centre for Micro and Nanomaterials, University “Politehnica” of Bucharest, 060042 Bucharest, Romania
| | - Adina Magdalena Musuc
- Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, University “Politehnica” of Bucharest, 060042 Bucharest, Romania; (A.V.P.); (A.M.M.); (O.C.O.); (R.T.); (E.A.)
- “Ilie Murgulescu” Institute of Physical Chemistry, Romanian Academy, 060021 Bucharest, Romania
| | - Ovidiu Cristian Oprea
- Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, University “Politehnica” of Bucharest, 060042 Bucharest, Romania; (A.V.P.); (A.M.M.); (O.C.O.); (R.T.); (E.A.)
| | - Roxana Trusca
- Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, University “Politehnica” of Bucharest, 060042 Bucharest, Romania; (A.V.P.); (A.M.M.); (O.C.O.); (R.T.); (E.A.)
- National Centre for Micro and Nanomaterials, University “Politehnica” of Bucharest, 060042 Bucharest, Romania
| | - Florin Iordache
- Faculty of Veterinary Medicine, Department of Biochemistry, University of Agronomic Science and Veterinary Medicine, 011464 Bucharest, Romania;
| | - Bogdan Stefan Vasile
- Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, University “Politehnica” of Bucharest, 060042 Bucharest, Romania; (A.V.P.); (A.M.M.); (O.C.O.); (R.T.); (E.A.)
- National Centre for Micro and Nanomaterials, University “Politehnica” of Bucharest, 060042 Bucharest, Romania
- National Research Centre for Food Safety, University “Politehnica” of Bucharest, 060042 Bucharest, Romania
- Correspondence:
| | - Ecaterina Andronescu
- Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, University “Politehnica” of Bucharest, 060042 Bucharest, Romania; (A.V.P.); (A.M.M.); (O.C.O.); (R.T.); (E.A.)
- National Centre for Micro and Nanomaterials, University “Politehnica” of Bucharest, 060042 Bucharest, Romania
- National Research Centre for Food Safety, University “Politehnica” of Bucharest, 060042 Bucharest, Romania
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6
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Photoluminescent Properties of Hydroxyapatite and Hydroxyapatite/Multi-Walled Carbon Nanotube Composites. CRYSTALS 2021. [DOI: 10.3390/cryst11070832] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Hydroxyapatite (HAp) and hydroxyapatite/multi-walled carbon nanotube (MWCNT) composites were obtained by the co-precipitation method, followed by ultrasound-assisted and microwave radiation and thermal treatment at 250 °C. X-ray diffraction (XRD) confirmed the presence of a hexagonal phase in all the samples, while Fourier-transform infrared (FTIR) spectroscopy elucidated the interaction between HAp and MWCNTs. The photoluminescent technique revealed that HAp and the composite with non-functionalized MWCNTs present a blue luminescence, while the composite with functionalized MWCNTs, under UV-vis radiation shows an intense white emission. These findings allowed presentation of a proposal for the use of HAp and HAp with functionalized MWCNTs as potential materials for optoelectronic and medical applications.
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Li X, Wu J, Li D, Zou Q, Man Y, Zou L, Li W. Pro-osteogenesis and in vivo tracking investigation of a dental implantation system comprising novel mTi implant and HYH-Fe particles. Bioact Mater 2021; 6:2658-2666. [PMID: 33665498 PMCID: PMC7890097 DOI: 10.1016/j.bioactmat.2021.01.038] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 01/19/2021] [Accepted: 01/30/2021] [Indexed: 02/05/2023] Open
Abstract
Insufficient early osteogenesis seriously affects the later stage osteogenic quality and osseointegration of dental implants. To promote early osteogenesis, we first designed a Ti dental implant with a built-in magnet (mTi) to produce a local static magnetic field (SMF). Then, a dental implantation system comprising the mTi implant and the superparamagnetic hydroxyapatite (HA:Yb/Ho-Fe, named HYH-Fe) particles was implanted into the alveolar bone of beagles. The results showed that the mTi + HYH-Fe group displayed better early osteogenesis and later stage osseointegration than the Ti + HA and mTi + HA groups. A combination of the local SMF (mTi) and superparamagnetic HYH-Fe particles had a positive effect on the pro-osteogenesis of Ti implants. The results also indicated that week 10 could be adopted as the key time point to evaluate the early osteogenic effect of the mTi + HYH-Fe implantation system, which would be a promising prospect for promotion of osteogenesis, in vivo tracking investigation of material-bone relationships, and clinical applications.
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Affiliation(s)
- Xiyu Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Juan Wu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Danxue Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Qin Zou
- Analytical and Testing Center, Sichuan University, Chengdu, 610064, China
| | - Yi Man
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Ling Zou
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Wei Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
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8
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Synthesis of Graphene Nanoribbons–Hydroxyapatite Nanocomposite Applicable in Biomedicine and Theranostics. JOURNAL OF NANOTHERANOSTICS 2020. [DOI: 10.3390/jnt1010002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
In order to investigate the effect of graphene nanoribbons on the final properties of hydroxyapatite-based nanocomposites, a solvothermal method was used at 180 °C and 5 h for the synthesis of graphene nanoribbons–hydroxyapatite nanopowders by employing hydrogen gas injection. Calcium nitrate tetrahydrate and diammonium hydrogenphosphate were used as calcium and phosphate precursors, respectively. To synthesize the powders, a solvent containing diethylene glycol, anhydrous ethanol, dimethylformamide, and water was used. Graphene oxide nanoribbons were synthesized by chemical unzipping of carbon nanotubes under oxidative conditions. The synthesized powders were consolidated by spark plasma sintering methodat 950 °C and a pressure of 50 MPa. The powders and sintered samples were then evaluated using X-ray diffraction, Raman spectroscopy, high-resolution transmission electron microscopy, Vickers microindentation techniques, and biocompatibility assay. The findings of this study showed that the final powders synthesized by the solvothermal method had calcium to phosphate ratio of about 1.67. By adding a small amount of graphene nanoribbon (0.5%W), elastic modulus and hardness of hydroxyapatite increased dramatically. In biological experiments, the difference of hydroxyapatite effect in comparison with the nanocomposite was not significant. The findings of this study showed that graphene nanoribbons have a positive effect on the properties of hydroxyapatite, and these findings would be useful for the medical and theranostic application of this type of nanocomposites.
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9
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The Comprehensive Approach to Preparation and Investigation of the Eu 3+ Doped Hydroxyapatite/poly(L-lactide) Nanocomposites: Promising Materials for Theranostics Application. NANOMATERIALS 2019; 9:nano9081146. [PMID: 31405106 PMCID: PMC6724068 DOI: 10.3390/nano9081146] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/05/2019] [Accepted: 08/06/2019] [Indexed: 12/13/2022]
Abstract
In response to the need for new materials for theranostics application, the structural and spectroscopic properties of composites designed for medical applications, received in the melt mixing process, were evaluated. A composite based on medical grade poly(L-lactide) (PLLA) and calcium hydroxyapatite (HAp) doped with Eu3+ ions was obtained by using a twin screw extruder. Pure calcium Hap, as well as the one doped with Eu3+ ions, was prepared using the precipitation method and then used as a filler. XRPD (X-ray Powder Diffraction) and IR (Infrared) spectroscopy were applied to investigate the structural properties of the obtained materials. DSC (Differential Scanning Calorimetry) was used to assess the Eu3+ ion content on phase transitions in PLLA. The tensile properties were also investigated. The excitation, emission spectra as well as decay time were measured to determine the spectroscopic properties. The simplified Judd–Ofelt (J-O) theory was applied and a detailed analysis in connection with the observed structural and spectroscopic measurements was made and described.
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10
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Li X, Zou Q, Man Y, Li W. Synergistic Effects of Novel Superparamagnetic/Upconversion HA Material and Ti/Magnet Implant on Biological Performance and Long-Term In Vivo Tracking. SMALL 2019; 15:e1901617. [PMID: 31187930 DOI: 10.1002/smll.201901617] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 05/10/2019] [Indexed: 02/05/2023]
Abstract
To solve the clinical challenges presented by the long-term tracking of implanted hydroxyapatite (HA) bone repair material and to investigate the synergistic effects of superparamagnetic HA and a static magnetic field (SMF) on the promotion of osteogenesis, herein a new type of superparamagnetic/upconversion-generating HA material (HYH-Fe) is developed via a two-step doping method, as well as a specially-designed titanium implant with a built-in magnet to provide a local static magnetic field in vivo. The results show that the prepared HYH-Fe material maintains the crystal structure of HA and exhibits good cytocompatibility. The combined use of the superparamagnetic HYH-Fe material and SMF can effectively and synergistically promote osteogenesis/osteointegration surrounding the Ti implants. In addition, the HYH-Fe material exhibits distinct advantages in terms of both long-term fluorescence tracking and microcomputed tomography (micro-CT) tracking. The new material and tracking strategy in this study provide scientific feasibility and will have important clinical value for long-term tracking and evaluation of implanted materials and the bone repair effect.
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Affiliation(s)
- Xiyu Li
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Qin Zou
- Analytical and Testing Center, Sichuan University, Chengdu, 610064, China
| | - Yi Man
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Wei Li
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
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11
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Neacsu IA, Stoica AE, Vasile BS, Andronescu E. Luminescent Hydroxyapatite Doped with Rare Earth Elements for Biomedical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E239. [PMID: 30744215 PMCID: PMC6409594 DOI: 10.3390/nano9020239] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 02/04/2019] [Accepted: 02/05/2019] [Indexed: 02/07/2023]
Abstract
One new, promising approach in the medical field is represented by hydroxyapatite doped with luminescent materials for biomedical luminescence imaging. The use of hydroxyapatite-based luminescent materials is an interesting area of research because of the attractive characteristics of such materials, which include biodegradability, bioactivity, biocompatibility, osteoconductivity, non-toxicity, and their non-inflammatory nature, as well their accessibility for surface adaptation. It is well known that hydroxyapatite, the predominant inorganic component of bones, serves a substantial role in tissue engineering, drug and gene delivery, and many other biomedical areas. Hydroxyapatite, to the detriment of other host matrices, has attracted substantial attention for its ability to bind to luminescent materials with high efficiency. Its capacity to integrate a large assortment of substitutions for Ca2+, PO₄3-, and/or OH- ions is attributed to the versatility of its apatite structure. This paper summarizes the most recently developed fluorescent materials based on hydroxyapatite, which use rare earth elements (REEs) as dopants, such as terbium (Tb3+), erbium (Er3+), europium (Eu3+), lanthanum (La3+), or dysprosium (Dy3+), that have been developed in the biomedical field.
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Affiliation(s)
- Ionela Andreea Neacsu
- Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 1-7 Polizu Street,Bucharest, 011061, Romania.
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12
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Qi C, Lin J, Fu LH, Huang P. Calcium-based biomaterials for diagnosis, treatment, and theranostics. Chem Soc Rev 2018; 47:357-403. [DOI: 10.1039/c6cs00746e] [Citation(s) in RCA: 145] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Calcium-based biomaterials with good biosafety and bio-absorbability are promising for biomedical applications such as diagnosis, treatment, and theranostics.
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Affiliation(s)
- Chao Qi
- Guangdong Key Laboratory for Biomedical
- Measurements and Ultrasound Imaging
- Laboratory of Evolutionary Theranostics
- School of Biomedical Engineering
- Health Science Center
| | - Jing Lin
- Guangdong Key Laboratory for Biomedical
- Measurements and Ultrasound Imaging
- Laboratory of Evolutionary Theranostics
- School of Biomedical Engineering
- Health Science Center
| | - Lian-Hua Fu
- Guangdong Key Laboratory for Biomedical
- Measurements and Ultrasound Imaging
- Laboratory of Evolutionary Theranostics
- School of Biomedical Engineering
- Health Science Center
| | - Peng Huang
- Guangdong Key Laboratory for Biomedical
- Measurements and Ultrasound Imaging
- Laboratory of Evolutionary Theranostics
- School of Biomedical Engineering
- Health Science Center
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13
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Victor SP, Gayathri Devi MG, Paul W, Vijayan VM, Muthu J, Sharma CP. Europium Doped Calcium Deficient Hydroxyapatite as Theranostic Nanoplatforms: Effect of Structure and Aspect Ratio. ACS Biomater Sci Eng 2017; 3:3588-3595. [PMID: 33445393 DOI: 10.1021/acsbiomaterials.7b00453] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We present the development of theranostic nanoplatforms (NPs) based on a europium (Eu3+) doped calcium deficient hydroxyapatite (CDHA) core functionalized with cyclodextrin (β-CD) and cucurbitural (CB[7]). The composition, crystalline structure, aspect ratio, surface area, morphology, and luminescence property of the NPs were investigated by means of X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), energy dispersive X-ray analysis (EDAX), the Brunauer-Emmett-Teller (BET) method, transmission electron microscopy (TEM), and fluorescence spectroscopy. The perceivable effects of Eu3+ doping appear in the minor peak shift to larger angles attributed to lower crystallite size and smaller aspect ratios coupled with greater structural strain in the rod shaped theranostic NPs and a shift in their zeta potential toward less negative values. Cell parameter calculations suggest that the doping of Eu3+ would cause the a-axis parameter to decrease slightly as the ionic radius of Eu3+ is smaller than that of Ca2+. Moreover drug release profiles employing 5-fluorouracil (5FU) suggest that these luminescent NPs depict controlled and sustained release profiles. Further the emissive intensities of the NPs in the carrier systems increase with cumulative released amounts of 5FU, suggesting that release of the drug can be monitored by changes in luminescent intensity. In addition, native NPs manifest commendable cytocompatibility as demonstrated by MTT and live/dead protocols, whereas the 5FU loaded NPs demonstrated over 80% HeLa cell death, signifying their therapeutic potential. We envision that these NPs can serve as effective and practical multifunctional probes for theranostic applications.
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Affiliation(s)
- Sunita Prem Victor
- Division of Polymeric Medical Devices, ‡Biosurface Technology, §Polymer Division, ∥Central Analytical Facility Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Poojappura, Thiruvananthapuram 695012, India
| | - M G Gayathri Devi
- Division of Polymeric Medical Devices, Biosurface Technology, §Polymer Division, ∥Central Analytical Facility Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Poojappura, Thiruvananthapuram 695012, India
| | - Willi Paul
- Division of Polymeric Medical Devices, Biosurface Technology, Polymer Division, ∥Central Analytical Facility Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Poojappura, Thiruvananthapuram 695012, India
| | - Vineeth M Vijayan
- Division of Polymeric Medical Devices, Biosurface Technology, Polymer Division, Central Analytical Facility Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Poojappura, Thiruvananthapuram 695012, India
| | - Jayabalan Muthu
- Division of Polymeric Medical Devices, Biosurface Technology, Polymer Division, Central Analytical Facility Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Poojappura, Thiruvananthapuram 695012, India
| | - Chandra P Sharma
- Division of Polymeric Medical Devices, Biosurface Technology, Polymer Division, Central Analytical Facility Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Poojappura, Thiruvananthapuram 695012, India
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Luminomagnetic Eu 3+- and Dy 3+-doped hydroxyapatite for multimodal imaging. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 81:422-431. [PMID: 28887994 DOI: 10.1016/j.msec.2017.08.032] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 08/10/2017] [Accepted: 08/10/2017] [Indexed: 11/24/2022]
Abstract
Multimodal imaging has recently attracted much attention due to the advantageous combination of different imaging modalities, like photoluminescence (PL) and magnetic resonance imaging (MRI). In the present study, luminescent and magnetic hydroxyapatites (HAp) were prepared via doping with europium (Eu3+) and dysprosium (Dy3+), respectively. Co-doping of Eu3+ and Dy3+ was used to combine the desired physical properties. Both lanthanide ions were successfully incorporated in the HAp crystal lattice, where they preferentially occupied calcium(I) sites. While Eu-doped HAp (Eu:HAp) exhibits dopant concentration dependent persistent PL properties, Dy-doped HAp (Dy:HAp) shows paramagnetic behavior due to the high magnetic moment of Dy3+. Co-doped HAp (Eu:Dy:HAp) nanoparticles combine both properties in one single crystal. Remarkably, multimodal co-doped HAp features enhanced PL properties due to an energy transfer from Dy3+ sensitizer to Eu3+ activator ions. Eu:Dy:HAp exhibits strong transverse relaxation effects with a maximum transverse relaxivity of 83.3L/(mmol·s). Due to their tunable PL, magnetic properties and cytocompatibility Eu:-, Dy:- and Eu:Dy:HAp represent promising biocompatible ceramic materials for luminescence imaging that simultaneously may serve as a contrast agent for MRI in permanent implants or functional coatings.
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Asha S, Nimrodh Ananth A, Vanitha kumari G, Prakash B, Jose SP, Jothi Rajan M. Biocompatible fluorescent nano-apatite with ionic silver- Its antibacterial activity and cytotoxicity towards cancer cells. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.matpr.2017.04.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Facile Synthesis, Characterization, and Cytotoxic Activity of Europium-Doped Nanohydroxyapatite. Bioinorg Chem Appl 2016; 2016:1057260. [PMID: 27965525 PMCID: PMC5124642 DOI: 10.1155/2016/1057260] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Accepted: 09/29/2016] [Indexed: 12/03/2022] Open
Abstract
The objective of this study was to synthetize europium-doped nanohydroxyapatite using a simple aqueous precipitation method and, thereafter, characterize and impregnate selected samples with 5-fluorouracil in order to explore the properties and the releasing capacity of this material. The nanohydroxyapatite was doped with 3, 5, 10, and 20 wt% of europium. The obtained samples were characterized after they were dried at 80°C and hydrothermal treated at 120°C by 2 hours. The samples were analyzed by transmission electron microscopy, X-ray diffraction analysis, Fourier transform infrared spectroscopy, and photoluminescence. Also, impregnation and release of 5-fluorouracil were assessed in PBS. The toxicity effects of all samples were studied using viability assays on human fibroblasts cells (HGF-1) in vitro. The sizes of the crystallites were about 10–70 nm with irregular morphology and present the phase corresponding to the JCPDS card 9–0432 for hydroxyapatite. The results of the toxicity experiments indicated that doped and undoped powders are biocompatible with fibroblasts cells. Hydroxyapatite samples doped with 5% of europium and loaded with 5-fluorouracil release almost 7 mg/L of the drug after 60 minutes in PBS and decrease the viability of HeLa cells after 24 hours.
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Chen MH, Hanagata N, Ikoma T, Huang JY, Li KY, Lin CP, Lin FH. Hafnium-doped hydroxyapatite nanoparticles with ionizing radiation for lung cancer treatment. Acta Biomater 2016; 37:165-73. [PMID: 27060620 DOI: 10.1016/j.actbio.2016.04.004] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 03/29/2016] [Accepted: 04/06/2016] [Indexed: 01/27/2023]
Abstract
UNLABELLED Recently, photodynamic therapy (PDT) is one of the new clinical options by generating cytotoxic reactive oxygen species (ROS) to kill cancer cells. However, the optical approach of PDT is limited by tissue penetration depth of visible light. In this study, we propose that a ROS-enhanced nanoparticle, hafnium-doped hydroxyapatite (Hf:HAp), which is a material to yield large quantities of ROS inside the cells when the nanoparticles are bombarded with high penetrating power of ionizing radiation. Hf:HAp nanoparticles are generated by wet chemical precipitation with total doping concentration of 15mol% Hf(4+) relative to Ca(2+) in HAp host material. The results show that the HAp particles could be successfully doped with Hf ions, resulted in the formation of nano-sized rod-like shape and with pH-dependent solubility. The impact of ionizing radiation on Hf:HAp nanoparticles is assessed by using in-vitro and in-vivo model using A549 cell line. The 2',7'-dichlorofluorescein diacetate (DCFH-DA) results reveal that after being exposed to gamma rays, Hf:HAp could significantly lead to the formation of ROS in cells. Both cell viability (WST-1) and cytotoxicity (LDH) assay show the consistent results that A549 lung cancer cell lines are damaged with changes in the cells' ROS level. The in-vivo studies further demonstrate that the tumor growth is inhibited owing to the cells apoptosis when Hf:HAp nanoparticles are bombarded with ionizing radiation. This finding offer a new therapeutic method of interacting with ionizing radiation and demonstrate the potential of Hf:HAp nanoparticles in tumor treatment, such as being used in a palliative treatment after lung surgical procedure. STATEMENT OF SIGNIFICANCE Photodynamic therapy (PDT) is one of the new clinical options by generating cytotoxic reactive oxygen species (ROS) to kill cancer cells. Unfortunately, the approach of PDT is usually limited to the treatment of systemic disease and deeper tumor, due to the limited tissue penetration depth of visible light (620-690nm). Here we report a ROS-enhanced nanoparticle, hafnium-doped hydroxyapatite (Hf:HAp), which can trigger ROS when particles are irradiated with high penetrating power of ionizing radiation. The present study provides quantitative data relating ROS generation and the therapeutic effect of Hf:HAp nanoparticles in lung cancer cells. As such, this material has opened an innovative window for deeper tumor and systemic disease treatment.
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Affiliation(s)
- Min-Hua Chen
- Institute of Biomedical Engineering, National Taiwan University, Taipei 10051, Taiwan; Nanotechnology Innovation Station, National Institute for Materials Science, Tsukuba 3050047, Japan
| | - Nobutaka Hanagata
- Nanotechnology Innovation Station, National Institute for Materials Science, Tsukuba 3050047, Japan
| | - Toshiyuki Ikoma
- Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology, Tokyo 1528550, Japan
| | - Jian-Yuan Huang
- Institute of Biomedical Engineering, National Taiwan University, Taipei 10051, Taiwan
| | - Keng-Yuan Li
- Institute of Biomedical Engineering, National Taiwan University, Taipei 10051, Taiwan
| | - Chun-Pin Lin
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University and National Taiwan University Hospital, Taipei 10048, Taiwan.
| | - Feng-Huei Lin
- Institute of Biomedical Engineering, National Taiwan University, Taipei 10051, Taiwan; Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli County 35053, Taiwan.
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Xie Y, He W, Li F, Perera TSH, Gan L, Han Y, Wang X, Li S, Dai H. Luminescence Enhanced Eu(3+)/Gd(3+) Co-Doped Hydroxyapatite Nanocrystals as Imaging Agents In Vitro and In Vivo. ACS APPLIED MATERIALS & INTERFACES 2016; 8:10212-10219. [PMID: 27043792 DOI: 10.1021/acsami.6b01814] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Biocompatible, biodegradable, and luminescent nano material can be used as an alternative bioimaging agent for early cancer diagnosis, which is crucial to achieve successful treatment. Hydroxyapatite (HAP) nanocyrstals have good biocompatibility and biodegradability, and can be used as an excellent host for luminescent rare earth elements. In this study, based on the energy transfer from Gd(3+) to Eu(3+), the luminescence enhanced imaging agent of Eu/Gd codoping HAP (HAP:Eu/Gd) nanocrystals are obtained via coprecipitation with plate-like shape and no change in crystal phase composition. The luminescence can be much elevated (up to about 120%) with a nonlinear increase versus Gd doping content, which is due to the energy transfer ((6)PJ of Gd(3+) → (5)HJ of Eu(3+)) under 273 nm and the possible combination effect of the cooperative upconversion and the successive energy transfer under 394 nm, respectively. Results demonstrate that the biocompatible HAP:Eu/Gd nanocrystals can successfully perform cell labeling and in vivo imaging. The intracellular HAP:Eu/Gd nanocrystals display good biodegradability with a cumulative degradation of about 65% after 72 h. This biocompatible, biodegradable, and luminescence enhanced HAP:Eu/Gd nanocrystal has the potential to act as a fluorescent imaging agent in vitro and in vivo.
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Affiliation(s)
- Yunfei Xie
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , Wuhan 430070, P. R. China
- Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology , Wuhan 430070, P. R. China
| | - Wangmei He
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , Wuhan 430070, P. R. China
- Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology , Wuhan 430070, P. R. China
| | - Fang Li
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , Wuhan 430070, P. R. China
- Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology , Wuhan 430070, P. R. China
| | - Thalagalage Shalika Harshani Perera
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , Wuhan 430070, P. R. China
- Faculty of Applied Sciences, Sabaragamuwa University of Sri Lanka , 70140 Belihuloya, Sri Lanka
| | - Lin Gan
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , Wuhan 430070, P. R. China
- Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology , Wuhan 430070, P. R. China
| | - Yingchao Han
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , Wuhan 430070, P. R. China
- Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology , Wuhan 430070, P. R. China
| | - Xinyu Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , Wuhan 430070, P. R. China
- Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology , Wuhan 430070, P. R. China
| | - Shipu Li
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , Wuhan 430070, P. R. China
- Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology , Wuhan 430070, P. R. China
| | - Honglian Dai
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , Wuhan 430070, P. R. China
- Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology , Wuhan 430070, P. R. China
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