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Abdalla MM, Sayed O, Lung CYK, Rajasekar V, Yiu CKY. Applications of Bioactive Strontium Compounds in Dentistry. J Funct Biomater 2024; 15:216. [PMID: 39194654 DOI: 10.3390/jfb15080216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Revised: 07/26/2024] [Accepted: 07/30/2024] [Indexed: 08/29/2024] Open
Abstract
Divalent cations have captured the interest of researchers in biomedical and dental fields due to their beneficial effects on bone formation. These metallic elements are similar to trace elements found in human bone. Strontium is a divalent cation commonly found in various biomaterials. Since strontium has a radius similar to calcium, it has been used to replace calcium in many calcium-containing biomaterials. Strontium has the ability to inhibit bone resorption and increase bone deposition, making it useful in the treatment of osteoporosis. Strontium has also been used as a radiopacifier in dentistry and has been incorporated into a variety of dental materials to improve their radiopacity. Furthermore, strontium has been shown to improve the antimicrobial and mechanical properties of dental materials, promote enamel remineralization, alleviate dentin hypersensitivity, and enhance dentin regeneration. The objective of this review is to provide a comprehensive review of the applications of strontium in dentistry.
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Affiliation(s)
- Mohamed Mahmoud Abdalla
- Paediatric Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
- Dental Biomaterials, Faculty of Dental Medicine, Al-Azhar University, Cairo 11651, Egypt
| | - Osama Sayed
- Faculty of Dentistry, Fayoum University, Faiyum 63514, Egypt
| | - Christie Ying Kei Lung
- Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Vidhyashree Rajasekar
- Paediatric Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Cynthia Kar Yung Yiu
- Paediatric Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
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Tang C, Mercelis B, Zhang F, Mocquot C, Nakanishi K, Yoshihara K, Peumans M, Van Meerbeek B. Filler Mixed Into Adhesives Does Not Necessarily Improve Their Mechanical Properties. Oper Dent 2024; 49:311-324. [PMID: 38632849 DOI: 10.2341/23-106-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/15/2023] [Indexed: 04/19/2024]
Abstract
OBJECTIVES To investigate the influence of filler type/loading on the micro-tensile fracture strength (μTFS) of adhesive resins, as measured 'immediately' upon preparation and after 1-week water storage ('water-stored'). METHODS The morphology and particle-size distribution of three filler particles, referred to as 'Glass-S' (Esschem Europe), 'BioUnion' (GC), and 'CPC_Mont', were correlatively characterized by SEM, TEM, and particle-size analysis. These filler particles were incorporated into an unfilled adhesive resin ('BZF-29unfilled', GC) in different concentrations to measure the 'immediate' μTFS. After 1-week water storage, the 'water-stored' μTFS of the experimental particle-filled adhesive resins with the most optimum filler loading, specific for each filler type, was measured. In addition, the immediate and water-stored μTFS of the adhesive resins of three experimental two-step universal adhesives based on the same resin matrix but varying for filler type/loading, coded as 'BZF-21' (containing silica and bioglass), 'BZF-29' (containing solely silica), and 'BZF-29_hv' (highly viscous with a higher silica loading than BZF-29), and of the adhesive resins of the gold-standard adhesives OptiBond FL ('Opti-FL', Kerr) and Clearfil SE Bond 2 ('C-SE2', Kuraray Noritake) was measured along with that of BZF-29unfilled (GC) serving as control/reference. Statistics involved one-way and two-way ANOVA followed by post-hoc multiple comparisons (α<0.05). RESULTS Glass-S, BioUnion, and CPC_Mont represent irregular fillers with an average particle size of 8.5-9.9 μm. Adding filler to BZF-29unfilled decreased μTFS regardless of filler type/loading. One-week water storage reduced μTFS of all adhesive resins except BZF-21, with the largest reduction in μTFS recorded for BZF-29unfilled. Among the three filler types, the μTFS of the 30 wt% Glass-S and 20 wt% BioUnion filled adhesive resin was not significantly different from the μTFS of BZF-29unfilled upon water storage. CONCLUSIONS Adding filler particles into adhesive resin did not enhance its micro-tensile fracture strength but appeared to render it less sensitive to water storage as compared to the unfilled adhesive resin investigated.
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Affiliation(s)
- C Tang
- Chuliang Tang, KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT, Biomaterials Research Group & UZ Leuven (University Hospitals Leuven), Dentistry, Leuven, Belgium
| | - B Mercelis
- Ben Mercelis, KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT, Biomaterials Research Group & UZ Leuven (University Hospitals Leuven), Dentistry, Leuven, Belgium
| | - F Zhang
- Fei Zhang, KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT, Biomaterials Research Group & UZ Leuven (University Hospitals Leuven), Dentistry, Leuven, Belgium; KU Leuven (University of Leuven), Department of Materials Engineering, Leuven, Belgium; 3Université Lyon 1, Laboratoire des Multimatériaux et Interfaces, Villeurbanne, France
| | - C Mocquot
- Caroline Mocquot, Université Lyon 1, Laboratoire des Multimatériaux et Interfaces, Villeurbanne, France; Université Paris Cité, Faculté dentaire, Hôpital Rothschild, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - K Nakanishi
- Ko Nakanishi, KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT, Biomaterials Research Group & UZ Leuven (University Hospitals Leuven), Dentistry, Leuven, Belgium; Hokkaido University, Faculty of Dental Medicine, Department of Biomaterials and Bioengineering, Sapporo, Japan
| | - K Yoshihara
- Kumiko Yoshihara, National Institute of Advanced Industrial Science and Technology (AIST), Health and Medical Research Institute, Kagawa, Japan; Okayama University, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Department of Pathology & Experimental Medicine, Okayama, Japan
| | - M Peumans
- Marleen Peumans, KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT, Biomaterials Research Group & UZ Leuven (University Hospitals Leuven), Dentistry, Leuven, Belgium
| | - B Van Meerbeek
- *Bart Van Meerbeek, KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT, Biomaterials Research Group & UZ Leuven (University Hospitals Leuven), Dentistry, Leuven, Belgium
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da Silva de Barros AO, Ricci-Junior E, Alencar LMR, Fechine PBA, Andrade Neto DM, Bouskela E, Santos-Oliveira R. High doses of hydroxyapatite nanoparticle (nHAP) impairs microcirculation in vivo. Colloids Surf B Biointerfaces 2024; 233:113601. [PMID: 37939551 DOI: 10.1016/j.colsurfb.2023.113601] [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: 02/06/2023] [Revised: 08/22/2023] [Accepted: 10/17/2023] [Indexed: 11/10/2023]
Abstract
Nanoparticles has surrounded the population by their use in electronics, medicine and cosmetics. The exposure to nanoparticles coming from different sources is uncountable as the amount of nanoparticles in which a person is exposed daily. In this direction and considering that microcirculation is the main and most affected system by nanoparticles in the first moment, responsible to transport and deal with nanoparticles internally, we evaluated a massive exposure (1 g/Kg) of a well-known nanoparticle (hydroxyapatite) and the impact on the microvessels. The results showed a massive destruction of venules, arterioles, and capillaries when nHAPs were administered topically. However, systemic administration of high doses of nHAP did not affect microcirculation but altered biochemical parameters of blood samples from treated animals. The data demonstrated that even well documented nanoparticles at high doses might affect the whole-body homeostasis. Finally, the results raise the necessity for further investigation of the effect of nanoparticles in microcirculation and the impact in the whole-body homeostasis.
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Affiliation(s)
- Aline Oliveira da Silva de Barros
- Brazilian Nuclear Energy Commission, Nuclear Engineering Institute, Laboratory of Nanoradiopharmaceuticals and Synthesis of Novel Radiopharmaceuticals, Rio de Janeiro 21941906, Brazil
| | - Eduardo Ricci-Junior
- Laboratório de Desenvolvimento Galênico, Departamento de Fármacos e Medicamentos, Faculdade de Farmácia, Universidade Federal do Rio de Janeiro (FF/UFRJ), Brazil
| | - Luciana Magalhães Rebelo Alencar
- Federal University of Maranhão, Department of Physics, Laboratory of Biophysics and Nanosystems, Campus Bacanga, Maranhão 65080-805, Brazil
| | - Pierre Basilio Almeida Fechine
- Grupo de Química de Materiais Avançados (GQMat), Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará-UFC, Campus do Pici, CP 12100, Fortaleza, Ceará, CEP 60451-970, Brazil
| | - Davino Machado Andrade Neto
- Grupo de Química de Materiais Avançados (GQMat), Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará-UFC, Campus do Pici, CP 12100, Fortaleza, Ceará, CEP 60451-970, Brazil; Federal Institute of Education, Science, and Technology of Ceará, Campus Camocim, 62400-000 Camocim, CE, Brazil
| | - Eliete Bouskela
- Universidade do Estado do Rio de Janeiro (UERJ), Laboratório de Pesquisas Clínicas e Experimentais em Biologia Vascular (BioVasc), Rio de Janeiro, 20550-013, Brazil
| | - Ralph Santos-Oliveira
- Brazilian Nuclear Energy Commission, Nuclear Engineering Institute, Laboratory of Nanoradiopharmaceuticals and Synthesis of Novel Radiopharmaceuticals, Rio de Janeiro 21941906, Brazil; State University of Rio de Janeiro, Laboratory of Nanoradiopharmaceuticals and Radiopharmacy, Rio de Janeiro, RJ 23070200, Brazil.
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Kantovitz KR, Carlos NR, Silva IAPS, Braido C, Costa BC, Kitagawa IL, Nociti-Jr FH, Basting RT, de Figueiredo FKP, Lisboa-Filho PN. TiO 2 nanotube-based nanotechnology applied to high-viscosity conventional glass-ionomer cement: ultrastructural analyses and physicochemical characterization. Odontology 2023; 111:916-928. [PMID: 36917400 DOI: 10.1007/s10266-023-00799-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 02/28/2023] [Indexed: 03/16/2023]
Abstract
This study characterized TiO2 nanotube (TiO2-nt) ultrastructure and morphology, and the physicochemical impact on high-viscosity conventional glass-ionomer cement (GIC). TiO2-nt was synthesized by the alkaline method (n = 3), assessed by scanning (SEM) and transmission electron microscope (TEM), and was added (3%, 5%, 7%-in weight) to KM (Ketac Molar EasyMix™). Analyses included: SEM; Energy-dispersive spectroscopy (EDS); Raman spectroscopy (RAMAN); Setting time with Gillmore needles (ST); Color (Co); Radiopacity (XR); Water sorption (WS); and solubility (SO). Quantitative data were submitted to ANOVA and Tukey's tests (chr = 0.05). External and internal TiO2-nt diameters were 11 ± 2 nm and 6 ± 0 nm, respectively. Data analyses showed: (i) TiO2-nt present into KM matrix, with a concentration-dependent increase of Ti levels into KM, (ii) physical interaction between KM and TiO2-nt, (iii) longer initial ST for the 7% group compared to KM and 3% groups (p ≤ 0.01), (iv) decreased luminosity and yellowness for the 5% and 7% groups, (v) 36% greater radiopacity for the 5% group compared to enamel, dentin, and KM, and (vi) lower SO values for the 5% group, with no significant differences on WS across the groups. TiO2-nt displayed physical interaction with KM matrix, and also modified SO, XR and Co, without affecting ST. This study provides information on the potential impact of TiO2-nt on GIC performance. TiO2-nt may be proposed to boost confidence among dental surgeons in terms of GIC's handling characteristics, success rate and differential diagnostic.
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Affiliation(s)
| | - Natália Russo Carlos
- Faculdade São Leopoldo, SLMANDIC, Rua José Rocha Junqueira, 13, Campinas, SP, 13045-755, Brazil
| | | | - Caroline Braido
- Pediatric Division, Department of Health Sciences, Orthodontics and Pediatric Dentistry, Piracicaba Dental School, University of Campinas, UNICAMP, Piracicaba, SP, Brazil
| | - Bruna Carolina Costa
- Department of Physics, School of Science, São Paulo State University, UNESP, Bauru, SP, Brazil
| | - Igor Lebedenco Kitagawa
- Federal Institute of Education, Science and Technology of São Paulo, IFSP, Birigui, SP, Brazil
| | - Francisco Humberto Nociti-Jr
- Faculdade São Leopoldo, SLMANDIC, Rua José Rocha Junqueira, 13, Campinas, SP, 13045-755, Brazil
- Division of Periodontics, Department of Prosthodontics and Periodontics, Piracicaba Dental School, University of Campinas, UNICAMP, Piracicaba, SP, Brazil
| | - Roberta Tarkany Basting
- Faculdade São Leopoldo, SLMANDIC, Rua José Rocha Junqueira, 13, Campinas, SP, 13045-755, Brazil
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Kulanthaivel S, Poppen J, Ribeiro Cunha S, Furman B, Whang K, Teixeira EC. Development of a Boron Nitride-Filled Dental Adhesive System. Polymers (Basel) 2023; 15:3512. [PMID: 37688138 PMCID: PMC10489713 DOI: 10.3390/polym15173512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 08/17/2023] [Accepted: 08/18/2023] [Indexed: 09/10/2023] Open
Abstract
There is a dearth of adhesive systems capable of forming stable bonds between restorative materials and tooth surfaces. To address the concern, this study determined the effects of using methacrylate-functionalized boron nitride nanosheets (BNNSs) in a polymeric dental adhesive system. The bisphenol A glycidyl dimethacrylate (BisGMA):2 hydroxyethyl methacrylate (HEMA) (60:40) adhesive monomer blend with a photoinitiator was filled with 0 wt% (control), 0.1 wt%, and 1 wt% BNNSs and light cured. Fourier transform infrared spectroscopy was performed to determine the conversion degree of monomer double bonds (DoC). Water absorption and solubility were measured. Flexural strength and Youngs's modulus were evaluated to determine the mechanical properties of the composite adhesive system. Finally, dentin bond strength degradation and fracture mode were quantified with a microtensile bond test to confirm the bonding ability of the developed adhesive system. Results showed that the incorporation of BNNSs increased DoC (9.8% and 5.4% for 0.1 and 1 wt%, respectively), but it did not affect water sorption (101.9-119.72 (µg/mm3)), solubility (2.62-5.54 (µg/mm3)), Young's modulus (529.1-1716.1 MPa), or microtensile bond strength (46.66-54.72 MPa). Further studies are needed with varying BNNS loading percentages from 0.1 wt% to 1 wt% in order to more comprehensively determine the effect of BNNSs on dental adhesives.
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Affiliation(s)
- Senthilguru Kulanthaivel
- Department of Operative Dentistry, College of Dentistry & Dental Clinics, The University of Iowa, Iowa City, IA 52242, USA (J.P.)
| | - Jeremiah Poppen
- Department of Operative Dentistry, College of Dentistry & Dental Clinics, The University of Iowa, Iowa City, IA 52242, USA (J.P.)
| | - Sandra Ribeiro Cunha
- Department of Operative Dentistry, College of Dentistry & Dental Clinics, The University of Iowa, Iowa City, IA 52242, USA (J.P.)
| | | | - Kyumin Whang
- Department of Comprehensive Dentistry, The University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA;
| | - Erica C. Teixeira
- Department of Operative Dentistry, College of Dentistry & Dental Clinics, The University of Iowa, Iowa City, IA 52242, USA (J.P.)
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Chen N, Wang Y, Li L, Geng L, Zhang M. Synthesis, Photoluminescent Characteristics and Eu 3+-Induced Phase Transitions in Sr 3Zr 2O 7:Eu 3+ Red Phosphors. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13091446. [PMID: 37176993 PMCID: PMC10179854 DOI: 10.3390/nano13091446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 04/20/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023]
Abstract
Designing phosphors that are excited by blue light is extraordinarily important for white light-emitting diodes (w-LEDs). In the present study, a new Ruddlesden-Popper type of SZO:xEu3+ (x = 0.01~0.10) phosphors was developed using solid-state reactions. Interestingly, a Eu3+ doping-induced phase transformation from the Sr3Zr2O7 (cubic) to the SrZrO3 (orthorhombic) phase was observed, and the impact of the occupied sites of Eu3+ ions on the lifetime of Sr3Zr2O7:xEu3+ phosphors is discussed in detail. Diffuse reflectance spectroscopy results showed that the band gap of SZO:xEu3+ phosphors gradually increased from 3.48 eV for undoped Sr3Zr2O7 hosts to 3.67 eV for SZO:0.10Eu3+ samples. The fluorescence excitation spectrum showed that ultraviolet (300 nm), near-ultraviolet (396 nm) and blue light (464 nm) were all effective excitation pump sources of Sr3Zr2O7:xEu3+ phosphors, and the strongest emission at 615 nm originated from an electric dipole transition (5D0→7F2). CIE coordinates moved from orange (0.5969, 0.4267) to the reddish-orange region (0.6155, 0.3827), and the color purity also increased. The fabricated w-LED was placed on a 460 nm chip with a mixture of YAG:Ce3+ and SZO:0.1Eu3+ samples and showed "warm" white light with a color rendering index (CRI) of 81.8 and a correlation color temperature (CCT) of 5386 K, indicating great potential for application in blue chip white LEDs.
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Affiliation(s)
- Nianmin Chen
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Material Science, Huaibei Normal University, Huaibei 235000, China
| | - Yunjian Wang
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Material Science, Huaibei Normal University, Huaibei 235000, China
| | - Longfeng Li
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Material Science, Huaibei Normal University, Huaibei 235000, China
| | - Lei Geng
- College of Physics and Physical Engineering, Qufu Normal University, Qufu 273165, China
| | - Maolin Zhang
- School of Materials and Chemical Engineering, Bengbu University, Bengbu 233030, China
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Rifane TO, Cordeiro KEM, Silvestre FA, Souza MT, Zanotto ED, Araújo-Neto VG, Giannini M, Sauro S, de Paula DM, Feitosa VP. Impact of silanization of different bioactive glasses in simplified adhesives on degree of conversion, dentin bonding and collagen remineralization. Dent Mater 2023; 39:217-226. [PMID: 36690502 DOI: 10.1016/j.dental.2023.01.005] [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: 09/03/2021] [Revised: 12/29/2022] [Accepted: 01/15/2023] [Indexed: 01/22/2023]
Abstract
OBJECTIVE To analyze simplified adhesive containing pure or silanized bioglass 45S5 (with calcium) or Sr-45S5 (strontium-substituted) fillers applied on dentin and to evaluate the microtensile bond strength (µTBS), interface nanoleakage, degree of conversion of adhesive, collagen degradation and remineralization. METHODS Ambar Universal adhesive (FGM) was doped with 10 wt% bioactive glasses to form following groups: Control (no bioglass), 45S5 (conventional bioglass 45S5), Sr-45S5 (Sr-substituted bioglass 45S5), Sil-45S5 (silanized bioglass 45S5) and Sil-Sr-45S5 (silanized bioglass Sr-45S5). Adhesives were applied after dentin acid-etching using phosphoric acid at extracted human molars. Resin-dentin sticks were obtained and tested for µTBS, nanoleakage at 24 h or 6 months. Degree of conversion was measured using micro-Raman spectroscopy. Dentin remineralization was assessed by FTIR after 6-month storage in PBS. Hydroxyproline (HYP) release was surveyed by UV-Vis spectroscopy. Statistical analysis was performed using ANOVA and Tukey's test (p < 0.05). RESULTS Regarding µTBS, Sr-45S5 and 45S5 presented higher and stable results (p > 0.05). Control (p = 0.018) and Sil-Sr-45S5 (p < 0.001) showed µTBS reduction after 6-month aging. Sil-Sr-45S5 showed higher HYP release than that obtained in the 45S5 group. Sil-45S5 showed mineral deposition and increase in µTBS (p = 0.028) after 6-months. All experimental adhesives exhibited higher degree of conversion compared to Control group, except for 45S5. All adhesives created gap-free interfaces, with very low silver impregnation, except for Sil-Sr-45S5. SIGNIFICANCE The incorporation of silanized 45S5 bioglass into the universal adhesive was advantageous in terms of dentin remineralization, bonding performance and adhesive polymerization. Conversely, Sil-Sr-45S5 compromised the µTBS, interface nanoleakage and had a negative impact on HYP outcomes.
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Affiliation(s)
| | | | | | - Marina Trevelin Souza
- Vitreous Materials Laboratory (LAMAV), Department of Materials Engineering, Federal University of São Carlos, São Carlos, Brazil.
| | - Edgar Dutra Zanotto
- Vitreous Materials Laboratory (LAMAV), Department of Materials Engineering, Federal University of São Carlos, São Carlos, Brazil.
| | - Vitaliano Gomes Araújo-Neto
- Department of Restorative Dentistry, Piracicaba Dental School, University of Campinas, Piracicaba, SP, Brazil.
| | - Marcelo Giannini
- Department of Restorative Dentistry, Piracicaba Dental School, University of Campinas, Piracicaba, SP, Brazil.
| | - Salvatore Sauro
- Department of Biomaterials and Minimally Invasive Dentistry, Cardenal Herreara CEU University, Valencia, Spain.
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Montazerian M, Gonçalves GVS, Barreto MEV, Lima EPN, Cerqueira GRC, Sousa JA, Malek Khachatourian A, Souza MKS, Silva SML, Fook MVL, Baino F. Radiopaque Crystalline, Non-Crystalline and Nanostructured Bioceramics. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7477. [PMID: 36363085 PMCID: PMC9656675 DOI: 10.3390/ma15217477] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 10/17/2022] [Accepted: 10/19/2022] [Indexed: 06/16/2023]
Abstract
Radiopacity is sometimes an essential characteristic of biomaterials that can help clinicians perform follow-ups during pre- and post-interventional radiological imaging. Due to their chemical composition and structure, most bioceramics are inherently radiopaque but can still be doped/mixed with radiopacifiers to increase their visualization during or after medical procedures. The radiopacifiers are frequently heavy elements of the periodic table, such as Bi, Zr, Sr, Ba, Ta, Zn, Y, etc., or their relevant compounds that can confer enhanced radiopacity. Radiopaque bioceramics are also intriguing additives for biopolymers and hybrids, which are extensively researched and developed nowadays for various biomedical setups. The present work aims to provide an overview of radiopaque bioceramics, specifically crystalline, non-crystalline (glassy), and nanostructured bioceramics designed for applications in orthopedics, dentistry, and cancer therapy. Furthermore, the modification of the chemical, physical, and biological properties of parent ceramics/biopolymers due to the addition of radiopacifiers is critically discussed. We also point out future research lacunas in this exciting field that bioceramists can explore further.
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Affiliation(s)
- Maziar Montazerian
- Northeastern Laboratory for Evaluation and Development of Biomaterials (CERTBIO), Federal University of Campina Grande, Campina Grande 58429-900, PB, Brazil
| | - Geovanna V. S. Gonçalves
- Northeastern Laboratory for Evaluation and Development of Biomaterials (CERTBIO), Federal University of Campina Grande, Campina Grande 58429-900, PB, Brazil
| | - Maria E. V. Barreto
- Northeastern Laboratory for Evaluation and Development of Biomaterials (CERTBIO), Federal University of Campina Grande, Campina Grande 58429-900, PB, Brazil
| | - Eunice P. N. Lima
- Northeastern Laboratory for Evaluation and Development of Biomaterials (CERTBIO), Federal University of Campina Grande, Campina Grande 58429-900, PB, Brazil
| | - Glauber R. C. Cerqueira
- Northeastern Laboratory for Evaluation and Development of Biomaterials (CERTBIO), Federal University of Campina Grande, Campina Grande 58429-900, PB, Brazil
| | - Julyana A. Sousa
- Northeastern Laboratory for Evaluation and Development of Biomaterials (CERTBIO), Federal University of Campina Grande, Campina Grande 58429-900, PB, Brazil
| | - Adrine Malek Khachatourian
- Department of Materials Science and Engineering, Sharif University of Technology, Tehran 11155-1639, Iran
| | - Mairly K. S. Souza
- Northeastern Laboratory for Evaluation and Development of Biomaterials (CERTBIO), Federal University of Campina Grande, Campina Grande 58429-900, PB, Brazil
| | - Suédina M. L. Silva
- Northeastern Laboratory for Evaluation and Development of Biomaterials (CERTBIO), Federal University of Campina Grande, Campina Grande 58429-900, PB, Brazil
| | - Marcus V. L. Fook
- Northeastern Laboratory for Evaluation and Development of Biomaterials (CERTBIO), Federal University of Campina Grande, Campina Grande 58429-900, PB, Brazil
| | - Francesco Baino
- Institute of Materials Physics and Engineering, Department of Applied Science and Technology, Politecnico di Torino, 10129 Torino, Italy
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Saghiri MA, Vakhnovetsky J, Vakhnovetsky A, Ghobrial M, Nath D, Morgano SM. Functional role of inorganic trace elements in dentin apatite tissue-Part 1: Mg, Sr, Zn, and Fe. J Trace Elem Med Biol 2022; 71:126932. [PMID: 35101699 DOI: 10.1016/j.jtemb.2022.126932] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/16/2021] [Accepted: 01/14/2022] [Indexed: 12/19/2022]
Abstract
Many essential elements exist in nature with significant influence on dentin and bone apatite tissue. Hydroxyapatite (HAp) is the major inorganic crystalline structure of dentin that provides a site for various physiological functions such as surface layer ion exchange. Decades of apatite research have shown that enamel is a high-substituted crystalline apatite, but recent findings suggest that dentin apatite may play a more important role in regulating ion exchange as well as mineral crystallinity. This article is the first part of a review series on the functional role of inorganic trace elements including magnesium, strontium, zinc, and iron in dentin hydroxyapatite. The morphology, physiology, crystallinity, and solubility of these elements as they get substituted into the HAp lattice are extensively discussed. An electronic search was performed on the role of these elements in dentin apatite from January 2007 to September 2021. The relationship between different elements and their role in the mineral upkeep of dentin apatite was evaluated. Several studies recognized the role of these elements in dentinal apatite composition and its subsequent effects on morphology, crystallinity, and solubility. These elements are of great importance in physiological processes and an essential part of living organisms. Magnesium and strontium stimulate osteoblast activity, while zinc can improve overall bone quality with its antibacterial properties. Iron nanoparticles are also vital in promoting bone tissue growth as they donate or accept electrons in redox reactions. Thus, understanding how these elements impact dentin apatite structure is of great clinical significance.
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Affiliation(s)
- Mohammad Ali Saghiri
- Department of Restorative Dentistry, Rutgers School of Dental Medicine, Newark, NJ, United States; Department of Endodontics, University of the Pacific, Arthur A. Dugoni School of Dentistry, San Francisco, CA, United States.
| | - Julia Vakhnovetsky
- Sector of Angiogenesis Regenerative Medicine, Dr. Hajar Afsar Lajevardi Research Cluster (DHAL), Hackensack, NJ, United States; Rutgers School of Dental Medicine, Newark, NJ, United States
| | | | - Marina Ghobrial
- New Jersey Institute of Technology, Newark, NJ, United States
| | - Devyani Nath
- Biomaterial and Prosthodontics Laboratory, Department of Restorative Dentistry, Rutgers School of Dental Medicine, Newark, NJ, United States
| | - Steven M Morgano
- Department of Restorative Dentistry, Rutgers School of Dental Medicine, Newark, NJ, United States
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10
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Cavalcante MDP, de Menezes LR, Rodrigues EJDR, Tavares MIB. In vitro characterization of a biocompatible composite based on poly(3-hydroxybutyrate)/hydroxyapatite nanoparticles as a potential scaffold for tissue engineering. J Mech Behav Biomed Mater 2022; 128:105138. [DOI: 10.1016/j.jmbbm.2022.105138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 02/16/2022] [Accepted: 02/17/2022] [Indexed: 11/09/2022]
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11
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Emergence of Nano-Dentistry as a Reality of Contemporary Dentistry. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12042008] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
(1) Background. Nanotechnology offers significant alternative ways to solve scientific, medical, and human health issues. Dental biomaterials were improved by nanotechnology. It manufactures better materials or improves the existing ones and forms the basis of novel methods for disease diagnosis and prevention. Modern nanotechnology makes oral health care services more acceptable for patients. Nanotechnology is now important area of research, covering a broad range of applications in dentistry. (2) Methods. Relevant literature from Scopus published in English was selected using the keywords “nanoparticle” and “dentistry”. To the selected articles we applied the inclusion and exclusion criteria to choose the relevant ones. (3) Results. Based on the relevant articles, a literature review was prepared. This review provides an insight into the applications of nanotechnology in various branches of dentistry. We applied several regression models to fit number of papers versus time and chose the best one. We used it to construct the forecast and its 95%-confidence interval for the number of publications in 2022–2026. (4) Conclusions. It shows that a significant rise in papers is expected. This review familiarizes dentists with properties and benefits of nanomaterials and nanotechnology. Additionally, it can help scientists to consider the direction of their research and to plan prospective research projects.
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12
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Nouri F, Ghashami M, Heidari S, Mohammadpour M, Mirzadeh M, Asgari N. Comparative evaluation of net setting time and radiopacity in Fuji II (GC-Japan) restorative glass ionomer and Iranian glass ionomer. Dent Res J (Isfahan) 2022. [DOI: 10.4103/1735-3327.363568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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13
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Sneha KR, Sailaja GS. Intrinsically radiopaque biomaterial assortments: a short review on the physical principles, X-ray imageability, and state-of-the-art developments. J Mater Chem B 2021; 9:8569-8593. [PMID: 34585717 DOI: 10.1039/d1tb01513c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
X-ray attenuation ability, otherwise known as radiopacity of a material, could be indisputably tagged as the central and decisive parameter that produces contrast in an X-ray image. Radiopaque biomaterials are vital in the healthcare sector that helps clinicians to track them unambiguously during pre and post interventional radiological procedures. Medical imaging is one of the most powerful resources in the diagnostic sector that aids improved treatment outcomes for patients. Intrinsically radiopaque biomaterials enable themselves for visual targeting/positioning as well as to monitor their fate and further provide the radiologists with critical insights about the surgical site. Moreover, the emergence of advanced real-time imaging modalities is a boon to the contemporary healthcare systems that allow to perform minimally invasive surgical procedures and thereby reduce the healthcare costs and minimize patient trauma. X-ray based imaging is one such technologically upgraded diagnostic tool with many variants like digital X-ray, computed tomography, digital subtraction angiography, and fluoroscopy. In light of these facts, this review is aimed to briefly consolidate the physical principles of X-ray attenuation by a radiopaque material, measurement of radiopacity, classification of radiopaque biomaterials, and their recent advanced applications.
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Affiliation(s)
- K R Sneha
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kochi - 682022, India.
| | - G S Sailaja
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kochi - 682022, India. .,Interuniversity Centre for Nanomaterials and Devices, CUSAT, Kochi - 682022, India.,Centre for Advanced Materials, CUSAT, Kochi - 682022, India
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14
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Nawrocka A, Piwonski I, Sauro S, Porcelli A, Hardan L, Lukomska-Szymanska M. Traditional Microscopic Techniques Employed in Dental Adhesion Research-Applications and Protocols of Specimen Preparation. BIOSENSORS 2021; 11:bios11110408. [PMID: 34821624 PMCID: PMC8615842 DOI: 10.3390/bios11110408] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/14/2021] [Accepted: 10/18/2021] [Indexed: 06/13/2023]
Abstract
Microscopy is a traditional method to perform ex vivo/in vitro dental research. Contemporary microscopic techniques offer the opportunity to observe dental tissues and materials up to nanoscale level. The aim of this paper was to perform a literature review on four microscopic methods, which are widely employed in dental studies concerning the evaluation of resin-dental adhesive interfaces-confocal laser scanning microscopy (CLSM), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and atomic force microscopy (AFM). The literature search was performed using digital databases: PubMed, Web of Science and Scopus. On the basis of key words relevant to the topic and established eligibility criteria, finally 84 papers were included in the review. Presented microscopic techniques differ in their principle of operation and require specific protocols for specimen preparation. With regard to adhesion studies, microscopy assists in the description of several elements involved in adhesive bonding, as well as in the assessment of the condition of enamel surface and the most appropriate etching procedures. There are several factors determining the quality of the interaction between the substrates which could be recognized and a potential for further implementation of microscopic techniques in dental research could be recognized, especially when these techniques are used simultaneously or combined with spectroscopic methods. Through such microscopy techniques it is possible to provide clinically relevant conclusions and recommendations, which can be easily introduced for enamel-safe bonding and bonding protocols, as well as optimal pretreatments in dentine preparation.
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Affiliation(s)
- Agnieszka Nawrocka
- Department of General Dentistry, Medical University of Lodz, 251 Pomorska Str., 92-213 Lodz, Poland;
| | - Ireneusz Piwonski
- Department of Materials Technology and Chemistry, Faculty of Chemistry, University of Lodz, 163 Pomorska Str., 90-236 Lodz, Poland;
| | - Salvatore Sauro
- Dental Biomaterials, Preventive and Minimally Invasive Dentistry Departamento de Odontología, Facultad de Ciencias de la Salud, Universidad CEU-Cardenal Herrera C/Del Pozo ss/n, Alfara del Patriarca, 46115 Valencia, Spain;
- Department of Therapeutic Dentistry, I.M. Sechenov First Moscow State Medical University, 119146 Moscow, Russia
| | - Annalisa Porcelli
- Department of Dentistry, Catholic University of the Sacred Heart, 00168 Rome, Italy;
| | - Louis Hardan
- Department of Restorative Dentistry, School of Dentistry, Saint-Joseph University, Beirut 1107 2180, Lebanon;
| | - Monika Lukomska-Szymanska
- Department of General Dentistry, Medical University of Lodz, 251 Pomorska Str., 92-213 Lodz, Poland;
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15
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Cao X, Ge W, Wang Y, Ma M, Wang Y, Zhang B, Wang J, Guo Y. Rapid Fabrication of MgNH 4PO 4·H 2O/SrHPO 4 Porous Composite Scaffolds with Improved Radiopacity via 3D Printing Process. Biomedicines 2021; 9:biomedicines9091138. [PMID: 34572326 PMCID: PMC8468055 DOI: 10.3390/biomedicines9091138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/22/2021] [Accepted: 08/24/2021] [Indexed: 11/25/2022] Open
Abstract
Although bone repair scaffolds are required to possess high radiopacity to be distinguished from natural bone tissues in clinical applications, the intrinsic radiopacity of them is usually insufficient. For improving the radiopacity, combining X-ray contrast agents with bone repair scaffolds is an effective method. In the present research, MgNH4PO4·H2O/SrHPO4 3D porous composite scaffolds with improved radiopacity were fabricated via the 3D printing technique. Here, SrHPO4 was firstly used as a radiopaque agent to improve the radiopacity of magnesium phosphate scaffolds. X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive spectroscopy (EDS) were used to characterize the phases, morphologies, and element compositions of the 3D porous composite scaffolds. The radiography image showed that greater SrHPO4 contents corresponded to higher radiopacity. When the SrHPO4 content reached 9.34%, the radiopacity of the composite scaffolds was equal to that of a 6.8 mm Al ladder. The porosity and in vitro degradation of the porous composite scaffolds were studied in detail. The results show that magnesium phosphate scaffolds with various Sr contents could sustainably degrade and release the Mg, Sr, and P elements during the experiment period of 28 days. In addition, the cytotoxicity on MC3T3-E1 osteoblast precursor cells was evaluated, and the results show that the porous composite scaffolds with a SrHPO4 content of 9.34% possessed superior cytocompatibility compared to that of the pure MgNH4PO4·H2O scaffolds when the extract concentration was 0.1 g/mL. Cell adhesion experiments showed that all of the scaffolds could support MC3T3-E1 cellular attachment well. This research indicates that MgNH4PO4·H2O/SrHPO4 porous composite scaffolds have potential applications in the bone repair fields.
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Affiliation(s)
- Xiaofeng Cao
- Key Laboratory of Photochemical Conversion and Optoelectronic Material, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (X.C.); (Y.W.); (M.M.); (Y.W.); (B.Z.); (J.W.)
| | - Wufei Ge
- Department of Orthopedics, The First Affiliated Hospital, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230022, China;
| | - Yihu Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Material, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (X.C.); (Y.W.); (M.M.); (Y.W.); (B.Z.); (J.W.)
| | - Ming Ma
- Key Laboratory of Photochemical Conversion and Optoelectronic Material, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (X.C.); (Y.W.); (M.M.); (Y.W.); (B.Z.); (J.W.)
| | - Ying Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Material, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (X.C.); (Y.W.); (M.M.); (Y.W.); (B.Z.); (J.W.)
| | - Bing Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Material, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (X.C.); (Y.W.); (M.M.); (Y.W.); (B.Z.); (J.W.)
| | - Jianing Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Material, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (X.C.); (Y.W.); (M.M.); (Y.W.); (B.Z.); (J.W.)
| | - Yanchuan Guo
- Key Laboratory of Photochemical Conversion and Optoelectronic Material, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (X.C.); (Y.W.); (M.M.); (Y.W.); (B.Z.); (J.W.)
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Correspondence:
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16
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Hafez IT, Biskos G. New method for the protection and restoration of calcareous cultural heritage stones by polyelectrolytes and hydroxyapatite nanocrystals. J Colloid Interface Sci 2021; 604:604-615. [PMID: 34280758 DOI: 10.1016/j.jcis.2021.07.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 07/01/2021] [Accepted: 07/02/2021] [Indexed: 11/29/2022]
Abstract
We have investigated the feasibility of a new two-step protocol for the restoration of marbles. The process employs a polyelectrolyte multilayer film that enhances the chemical affinity between the treated stone and restorative material (hydroxyapatite nanocrystals), through functionalization, while at the same time it attributes an acid resistant property to the resulting system. Surface functionalization and material deposition is achieved through spraying; a simple and versatile application method suitable for objects of various sizes and geometries. Polyelectrolyte (polyethylenimine and polyacrylic acid) deposition was examined through Attenuated Total Reflection Fourier-Transform Infrared Spectroscopy (ATR-FTIR) and Atomic Force Microscopy (AFM), and tested through contact angle, water absorption and dissolution experiments. The hydroxyapatite nanocrystals were studied by ATR-FTIR, z-potential, AFM and Scanning Electron Microscopy (SEM), and characterized via contact angle and color alteration measurements. Our results show that the polyelectrolyte multilayer was stable in an aqueous environment with increased acid resistance (up to 46% decrease in mass weight loss when compared with untreated samples) and decreased water absorption (up to 39%). Color measurements of the outer hydroxyapatite layer showed a minimal color alteration for one type of the tested substrates showing low color difference values (ΔΕ* < 5). The results suggest that the proposed method holds great potential for marble restoration as it attributes multi-functionality and is easy to apply.
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Affiliation(s)
- Iosif T Hafez
- Science and Technology in Archaeology and Culture Research Center, The Cyprus Institute, Nicosia 2121, Cyprus; Climate and Atmosphere Research Center, The Cyprus Institute, Nicosia 2121, Cyprus.
| | - George Biskos
- Climate and Atmosphere Research Center, The Cyprus Institute, Nicosia 2121, Cyprus; Faculty of Civil Engineering and Geosciences, Delft University of Technology, Delft 2628 CN, the Netherlands
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17
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Li Y, Yu B, Wang H, Wang Y. Structural and optical characteristics of novel rare‐earth‐free red-emitting BaSn(PO4)2:Mn4+ phosphor. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129839] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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18
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Costa LSD, Khan LU, Franqui LS, Delite FDS, Muraca D, Martinez DST, Knobel M. Hybrid magneto-luminescent iron oxide nanocubes functionalized with europium complexes: synthesis, hemolytic properties and protein corona formation. J Mater Chem B 2021; 9:428-439. [PMID: 33367419 DOI: 10.1039/d0tb02454f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The use of hybrid nanostructures based on magneto-luminescent properties is a promising strategy for nano-bio applications and theranostics platforms. In this work, we carried out the synthesis and functionalization of iron oxide nanocubes (IONCs) to obtain multifunctional hybrid nanostructures towards biomedical applications. The IONCs were functionalized with tetraethylorthosilicate, thenoyltrifluoroacetone-propyl-triethoxysilane and europium(iii)-dibenzoylmethane complexes to obtain the materials termed as IOCNCs@SiO2, IONCs@SiO2TTA, IONCs@SiO2TTA-Eu and IONCs@SiO2-TTA-Eu-DBM, respectively. Then, the biological interactions of these nanostructures with red blood cells - RBCs (hemolysis) and human blood plasma (protein corona formation) were evaluated. The XPS spectrocopy and EDS chemical mapping analysis showed that each domain is homogeneously occupied in the hybrid material, with the magnetic core at the center and the luminescent domain on the surface of the hybrid nanomaterial with a core@shell like structure. Futhermore, after each functionalization step, the nanomaterial surface charge drastically changed, with critical impact on RBC lysis and corona formation. While IONCs@SiO2 and IONCs@SiO2-TTA-Eu-DBM showed hemolytic properties in a dose-dependent manner, the IONCs@SiO2TTA-Eu did not present any hemolytic effect up to 300 μg mL-1. Protein corona results showed a pattern of selective adsorption of proteins with each surface of the synthesized hybrid materials. However, as a general result, a suppression of hemolysis after protein corona formation in all tests was verified. Finally, this study provides a solid background for further applications of these hybrid magneto-luminescent materials containing new surface functionalities in the emerging field of medical nanobiotechnology.
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Affiliation(s)
- Luelc Souza da Costa
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, Brazil. and "Gleb Wataghim" Institute of Physics (IFGW), University of Campinas (Unicamp), Campinas, Sao Paulo, Brazil.
| | - Latif Ullah Khan
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, Brazil. and Synchrotron-Light for Experimental Science and Applications in the Middle East (SESAME), Allan, Jordan
| | - Lidiane Silva Franqui
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, Brazil.
| | - Fabrício de Souza Delite
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, Brazil.
| | - Diego Muraca
- "Gleb Wataghim" Institute of Physics (IFGW), University of Campinas (Unicamp), Campinas, Sao Paulo, Brazil.
| | - Diego Stéfani Teodoro Martinez
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, Brazil.
| | - Marcelo Knobel
- "Gleb Wataghim" Institute of Physics (IFGW), University of Campinas (Unicamp), Campinas, Sao Paulo, Brazil.
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Blinova AV, Rumyantsev VA. [Nanomaterials in the modern dentistry (review)]. STOMATOLOGIIA 2021; 100:103-109. [PMID: 33874670 DOI: 10.17116/stomat2021100021103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Was to study the promising areas for using nanotechnologies in dentistry, existing methods of diagnostics, treatment and prevention of the dental diseases based on the properties of nanoparticles, to review the scientific literature devoted to this problem. In this literature review we use 86 sources: 1 Russian and 85 foreign articles. Analyzed articles were published within the last 5 years. The literature review summarizes and presents up-to-date methods of diagnosing, treating, and preventing dental disease that use nanotechnologies. Development and implementation of nanotechnological treatment are a promising direction for modern dentistry.
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Assessment of Hydroxyapatite Nanospheres Incorporated Dentin Adhesive. A SEM/EDX, Micro-Raman, Microtensile and Micro-Indentation Study. COATINGS 2020. [DOI: 10.3390/coatings10121181] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Hydroxyapatite (HA) delivery with resin adhesives has potential for re-mineralization of resin–dentin interface. The study prepared an adhesive containing HA and confirmed its presence in adhesive and interaction with the dentin using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and Micro-Raman spectroscopy. The aim was to assess the influence of HA incorporation in dentin adhesive on its microtensile bond strength (μ-tbs) and Knoop microhardness (KHN). Thirty teeth each were bonded with CA and HA adhesive using a 10-s smear and photo-polymerized. The specimens in each adhesive group (CA and HA) were divided into sub-groups of 24 h, 8 weeks, and 16 weeks (n = 10) aging durations. μ-tbs was assessed at a crosshead speed of 0.5 mm/minute and bonded interface was analyzed using SEM (n = 20) and Raman spectroscopy (n = 10). Softening of HA adhesive and CA was assessed using KHN. HA adhesive presented higher μ-tbs compared to CA. With an increase in storage time, HA adhesive presented with 100% adhesive failure. Softening was less and KHN was higher for HA adhesive compared to CA (p < 0.05). KHN reduction was higher in CA [19.6 (5.1)%] compared to the HA adhesives [9.7 (4.5)%]. HA adhesive showed superior μTBS and microhardness compared to CA. In the absence of nanoleakage, HA modified adhesive exhibited enhanced bond integrity and better durability of resin dentin bond compared to control adhesive.
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Balbinot GS, Leitune VCB, Ogliari FA, Collares FM. Niobium silicate particles promote in vitro mineral deposition on dental adhesive resins. J Dent 2020; 101:103449. [PMID: 32777240 DOI: 10.1016/j.jdent.2020.103449] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 07/28/2020] [Accepted: 08/04/2020] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE This study aims to analyze the addition of niobium silicate particles to dental adhesive resins and evaluate its physicomechanical and biological properties. METHODS The SiNb particles were produced by the sol-gel route and presented a mean particle size of 2.1 μm and a specific surface area of 616,96m2/g. An experimental adhesive resin was formulated with 66 wt% Bisphenol A-Glycidyl Methacrylate and 33 wt% Hydroxyethyl methacrylate with diphenyl(2,4,6-trimethyl benzoyl)phosphine oxide as the photoinitiator. The SiNb particles were incorporated into the adhesive resins in 1 wt% (SiNb1%) and 2 wt% (SiNb2%) concentration. A control group (SiNb0%) without the addition of particles was used. The developed adhesives were evaluated by their polymerization kinetics, refractive index, softening in solvent, cytotoxicity, mineral deposition, ultimate tensile strength, and micro shear bond strength. RESULTS The refractive index range was increased by the addition of niobium silicate particles. No statistically significant difference was found between groups in the degree of conversion,.softening in solvent analysis, cytotoxicity and ultimate tensile strength. The deposition of minerals increased after immersion of specimens in SBF after 14 days on the SiNb2%. The SiNb2% group showed high micro shear bond strength values, reaching 33.87 MPa. CONCLUSION In the present study, the addition of 2 wt% of niobium silicate into dental adhesive resins promoted the mineral deposition with increased bond strength without affecting other material properties. CLINICAL SIGNIFICANCE Bioactive fillers must maintain the physical-chemical properties of dental adhesives, guaranteeing their clinical performance. Niobium silicate particles could promote the remineralization of dentin hard tissues without compromising the physico-mechanical properties on these materials.
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Affiliation(s)
- G S Balbinot
- Department of Dental Materials, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
| | - V C B Leitune
- Yller Biomaterials SA- Straumann Group, Pelotas, RS, Brazil.
| | - F A Ogliari
- Yller Biomaterials SA- Straumann Group, Pelotas, RS, Brazil.
| | - F M Collares
- Department of Dental Materials, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
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