Journal of the Australian Ceramic Society最新文献_第6页

Preparation and characterization of calcium hexaaluminate (CA6) porous ceramic for application in high-temperature flue gas filtration 高温烟气过滤用六铝酸钙(CA6)多孔陶瓷的制备与表征

IF 1.9 4区材料科学

Journal of the Australian Ceramic Society Pub Date : 2022-09-24 DOI: 10.1007/s41779-022-00804-4

Lei Yuan, Xinglong Yao, Zhengguo Yan, Endong Jin, Chaoyue Li, Zhenli Liu, Chen Tian, Beiyue Ma, Jingkun Yu

{"title":"Preparation and characterization of calcium hexaaluminate (CA6) porous ceramic for application in high-temperature flue gas filtration","authors":"Lei Yuan, Xinglong Yao, Zhengguo Yan, Endong Jin, Chaoyue Li, Zhenli Liu, Chen Tian, Beiyue Ma, Jingkun Yu","doi":"10.1007/s41779-022-00804-4","DOIUrl":"10.1007/s41779-022-00804-4","url":null,"abstract":"<div><h2>Abstract\u0000</h2><div><p>The purpose of this work was to provide a feasible gel-casting method to develop a high-performance porous ceramic for high-temperature flue gas filtration. The calcium hexaaluminate (CA<sub>6</sub>) porous ceramics were fabricated by an aqueous gel-casting process using CaCO<sub>3</sub> and ρ-Al<sub>2</sub>O<sub>3</sub> powders as raw materials. The properties of CA<sub>6</sub> porous ceramics in terms of microstructural characteristics, phase composition, pore size distribution, open porosity, compressive strength, thermal conductivity, and air permeability have been investigated. The results indicated that completely developed lamellar CA<sub>6</sub> grains can form a stepped structure and an irregular structure due to enough growth space, which could significantly improve the properties of the CA<sub>6</sub> porous ceramics. The CA<sub>6</sub> samples showed a high open porosity of 68.1% at a low thermal conductivity of 0.48 W/(m/K). In particular, the CA<sub>6</sub> samples possess high compressive strength of 7.9–62.0 MPa and high air permeability of 5.19 × 10<sup>−7</sup> m<sup>2</sup>–2.01 × 10<sup>−6</sup> m<sup>2</sup> (Darcy permeability, <i>k</i><sub>1</sub>). Based on these good properties, the CA<sub>6</sub> porous ceramic could resist the impact of gas and reduce heat loss in flue gas in high-temperature environment, which indicated that it could be appropriative for applications of high-temperature flue gas filtration.</p></div></div>","PeriodicalId":49042,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"58 5","pages":"1701 - 1708"},"PeriodicalIF":1.9,"publicationDate":"2022-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s41779-022-00804-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4954508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Graphene oxide reinforced doped dicalcium phosphate bone cements for bone tissue regenerations 氧化石墨烯增强掺杂磷酸二钙骨水泥用于骨组织再生

IF 1.9 4区材料科学

Journal of the Australian Ceramic Society Pub Date : 2022-09-23 DOI: 10.1007/s41779-022-00800-8

Ali Motameni, Ammar Z. Alshemary, Ali Deniz Dalgic, Dilek Keskin, Zafer Evis

{"title":"Graphene oxide reinforced doped dicalcium phosphate bone cements for bone tissue regenerations","authors":"Ali Motameni, Ammar Z. Alshemary, Ali Deniz Dalgic, Dilek Keskin, Zafer Evis","doi":"10.1007/s41779-022-00800-8","DOIUrl":"10.1007/s41779-022-00800-8","url":null,"abstract":"<div><h2>Abstract\u0000</h2><div><p>\u0000Artificial bone cements have widespread applications in orthopedic and dental surgeries. Nevertheless, there is a need to develop novel materials for artificial bone cements due to limitations like short-service life, weak interaction and attachment with living hard tissue, and the inability to facilitate bone regeneration of calcified tissues rather than replacing them. In the present research, a novel combination of lanthanum (La<sup>3+</sup>) ions doped dicalcium phosphate (DCP) (La-DCP) and 1.5–3.5 wt.% of graphene oxide (GO) doped La-DCP bone cement materials were successfully synthesized and reported for the first time. Acid/base interaction between La-β-tricalcium phosphate (La-βTCP) and monocalcium phosphate monohydrate (MCPM) in the presence of water was the basis for making the La-DCP cements. The synthesized cements were characterized using the XRD, FTIR, FESEM, UV–Vis and TGA techniques. Produced material had La-DCP as in the monetite phase, and La-DCP particles were formed in agglomerates of irregular shapes. The presence of GO enhanced the growth rate of monetite particles, significantly decreased the setting time of the La-DCP bone cement, enhanced mechanical properties and enhanced the adsorption capacity of La-DCP. In vitro studies showed that synthesized GO/La-DCP bone cements were biocompatible, and the proliferation and differentiation properties of human osteosarcoma (Saos-2) cells were significantly improved with the addition of GO. In summary, the synthesized GO/La-DCP bone cement materials, which exhibit good biocompatibility and mechanical properties, have the potential to be employed in bone defect healing.</p></div></div>","PeriodicalId":49042,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"58 5","pages":"1633 - 1647"},"PeriodicalIF":1.9,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s41779-022-00800-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4912074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Synthesis and characterization of zinc oxide decorated on graphene oxide: morphology selection and biological assessment 氧化石墨烯修饰氧化锌的合成与表征:形态选择与生物学评价

IF 1.9 4区材料科学

Journal of the Australian Ceramic Society Pub Date : 2022-09-22 DOI: 10.1007/s41779-022-00803-5

Najmeh Najmoddin, Ahmad Hasanzadeh, Seyedeh Mansoureh Shobeiry Nejad, Behafarid Ghalandari

{"title":"Synthesis and characterization of zinc oxide decorated on graphene oxide: morphology selection and biological assessment","authors":"Najmeh Najmoddin, Ahmad Hasanzadeh, Seyedeh Mansoureh Shobeiry Nejad, Behafarid Ghalandari","doi":"10.1007/s41779-022-00803-5","DOIUrl":"10.1007/s41779-022-00803-5","url":null,"abstract":"<div><h2>Abstract </h2><div><p>The morphology of nanomaterials as one of the physicochemical parameters plays a crucial role in determining the outcomes of interactions at the bio-nano interface. This work focuses on the biological features of graphene oxide (GO) decorated with zinc oxide (ZnO) (GO@ZnO) due to its outstanding properties with high potential to use in the biomedical field. GO@ZnO are synthesized, and the effect of seeding, temperature, and pH on the morphology of ZnO on GO substrate is evaluated by field emission scanning electron microscopy and X-ray diffraction technique. GO decorated with platelet and rod-like ZnO as GO@PZnO and GO@RZnO, respectively, are selected to investigate in vitro cytocompatibility, antibacterial activity, and interaction with human serum albumin (HSA) to put out the role of morphology. The antibacterial activity assays confirm the higher efficacy of GO@PZnO compared to GO@RZnO. However, the binding assessment indicates that HSA interaction is directly affected by the morphology of GO@ZnO so that the GO@RZnO-HSA complex is more stable than the GO@PZnO-HSA complex with a higher binding constant. Our results provide insight into how the morphology of GO@ZnO affects cell behavior, antibacterial activity, and protein complex formation. These findings are helpful to the development of GO@ZnO for future biomedical applications.</p><h3>Graphical abstract</h3>\u0000 <figure><div><div><div><picture><source><img></source></picture></div></div></div></figure>\u0000 </div></div>","PeriodicalId":49042,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"58 5","pages":"1685 - 1700"},"PeriodicalIF":1.9,"publicationDate":"2022-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4878213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Effect of trass calcination on properties of geopolymer mixtures 废石煅烧对地聚合物混合物性能的影响

IF 1.9 4区材料科学

Journal of the Australian Ceramic Society Pub Date : 2022-09-20 DOI: 10.1007/s41779-022-00799-y

Adil Gultekin, Semsi Yazici, Kambiz Ramyar

{"title":"Effect of trass calcination on properties of geopolymer mixtures","authors":"Adil Gultekin, Semsi Yazici, Kambiz Ramyar","doi":"10.1007/s41779-022-00799-y","DOIUrl":"10.1007/s41779-022-00799-y","url":null,"abstract":"<div><p>Cement production causes serious environmental problems and requires large amounts of energy. Studies have proven that the use of geopolymers can significantly reduce carbon dioxide emission and energy consumption arisen from cement production. Although there are many studies on the geopolymers, the number of studies dealing with geopolymers containing natural pozzolans other than metakaolin is very limited. In this study, the compressive strength and pore structure of geopolymers produced with trass (a type of natural pozzolan) were investigated. The mineralogical composition of trass, morphology of trass, and microstructure of geopolymer paste as well as the weight loss of the paste were determined using XRD, SEM, and TGA examinations, respectively. Moreover, the pore size distribution of the paste mixtures was obtained with Micro-CT analysis. The trass was used both in the natural form and after calcining at 550 °C for 6 h. The strength of geopolymer mortars produced with calcined trass, cured at 90 °C for 24 and 96 h, was found to be 86.7% and 81.6% higher than that of their counterparts containing natural trass. In addition, calcination of the trass resulted in 12.8–22.9% reduction in the porosity of geopolymer paste, compared to that of the paste containing natural trass. In XRD and TGA investigations, it was determined that the trass calcination performed at 550 °C did not make a significant change in the paste crystal structure and the weight loss-temperature graphs. SEM images proved that the reactivity of trass in geopolymerization increased with calcination and the matrix structure became denser and more homogeneous.</p></div>","PeriodicalId":49042,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"58 5","pages":"1623 - 1631"},"PeriodicalIF":1.9,"publicationDate":"2022-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4812396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

An investigation on the thermal and microstructural properties of low-cost pressureless sintered silicon nitride (Si3N4) ceramics incorporated with Y2O3-SiO2-MgO Y2O3-SiO2-MgO掺杂低成本无压烧结氮化硅(Si3N4)陶瓷的热性能和显微组织性能研究

IF 1.9 4区材料科学

Journal of the Australian Ceramic Society Pub Date : 2022-09-19 DOI: 10.1007/s41779-022-00779-2

Pınar Uyan, Özgür Cengiz, Servet Turan

{"title":"An investigation on the thermal and microstructural properties of low-cost pressureless sintered silicon nitride (Si3N4) ceramics incorporated with Y2O3-SiO2-MgO","authors":"Pınar Uyan, Özgür Cengiz, Servet Turan","doi":"10.1007/s41779-022-00779-2","DOIUrl":"10.1007/s41779-022-00779-2","url":null,"abstract":"<div><p>Y<sub>2</sub>O<sub>3</sub>-SiO<sub>2</sub>-MgO-incorporated silicon nitride (Si<sub>3</sub>N<sub>4</sub>) ceramics were investigated systemically to obtain cost-effective production and the effect of sintering temperature on the microstructure and thermal properties was studied. An α-Si<sub>3</sub>N<sub>4</sub> starting powder was used for preparing the samples and sintered under a pressure of one bar nitrogen gas pressure at 1650, 1700, 1750, 1800, and 1850 ℃ for 2 h. The crystallisation behaviour of the ceramics was promoted by sintering temperatures as evidenced by the XRD results. A different secondary phase, melilite (Y<sub>2</sub>Si<sub>3</sub>O<sub>3</sub>N<sub>4</sub>) formation, was detected using SEM micrographs of the final microstructures of the samples sintered at higher temperatures above 1700 ℃ which had a positive effect on thermal properties. The values of thermal conductivity increased by about 75.5% with increasing sintering temperature. The highest thermal conductivity (53.58 W/(mK)) was achieved with the highest sintering temperature of 1850 ℃. The results revealed that ternary sintering additives, such as Y<sub>2</sub>O<sub>3</sub>-SiO<sub>2</sub>-MgO, had a potential for low-cost production of Si<sub>3</sub>N<sub>4</sub> ceramics with enhanced thermal properties.</p></div>","PeriodicalId":49042,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"58 5","pages":"1433 - 1443"},"PeriodicalIF":1.9,"publicationDate":"2022-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4773846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The effect of alpha-lithium aluminate incorporation on the properties of bovine bone-derived hydroxyapatite α -铝酸锂掺入对牛骨源羟基磷灰石性能的影响

IF 1.9 4区材料科学

Journal of the Australian Ceramic Society Pub Date : 2022-09-12 DOI: 10.1007/s41779-022-00796-1

Suleyman Serdar Pazarlioglu

{"title":"The effect of alpha-lithium aluminate incorporation on the properties of bovine bone-derived hydroxyapatite","authors":"Suleyman Serdar Pazarlioglu","doi":"10.1007/s41779-022-00796-1","DOIUrl":"10.1007/s41779-022-00796-1","url":null,"abstract":"<div><p>The aim of the present paper was to investigate the effect of alpha-lithium aluminate (<i>α</i>-LiAlO<sub>2</sub>) incorporation (1, 3, and 5 wt%) on the properties (grain morphology, activation energy for grain growth, decomposition behavior, shrinkage, densification, hardness, fracture toughness, brittleness index, compressive strength, and in vitro bioactivity) of bovine hydroxyapatite (BHA) sintered between 900 and 1300 °C. BHA without <i>α</i>-LiAlO<sub>2</sub> incorporation exhibited the shrinkage of 12.02 ± 0.52%, density of 2.86 ± 0.47 g/cm<sup>3</sup>, relative density of 90.77 ± 1.51%, porosity of 1.12 ± 0.75%, hardness of 4.19 GPa ± 0.31, fracture toughness of 0.99 ± 0.13 MPam<sup>1/2</sup>, brittleness index of 4.24 ± 0.31 μ<sup>−1/2</sup>, and compressive strength of 115.75 ± 4.27 MPa, when it was sintered at 1300 °C. It decomposed to beta- and alpha-tricalcium phosphate (<i>β</i>- and <i>α</i>-TCP) as 4.7%, in totally. The activation energy for grain growth of pure BHA was calculated as 77.9 kcal/mol, as 57.61, 59.95, and 71.64 kcal/mol for 1, 3, and 5 wt% <i>α</i>-LiAlO<sub>2</sub> incorporated BHAs, respectively. The highest properties for <i>α</i>-LiAlO<sub>2</sub> incorporated BHAs were obtained at the sintering temperature of 1200 °C at amount of 5 wt% <i>α</i>-LiAlO<sub>2</sub>. For this composite, the density of 2.87 g/cm<sup>3</sup>, fracture toughness of 1.95 ± 0.18 MPam<sup>1/2</sup>, compressive strength of 218.33 ± 14.02 MPa, and brittleness index of 1.96 ± 0.21 μ<sup>−1/2</sup> were obtained. As a result of the in vitro bioactivity test, the bioactivation for this composite became clearly visible in 14 days. The results show that the incorporation of 5 wt% <i>α</i>-LiAlO<sub>2</sub> into BHA contributes to increasing the sinterability and properties of BHA without decreasing its bioactivity.</p></div>","PeriodicalId":49042,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"58 5","pages":"1585 - 1601"},"PeriodicalIF":1.9,"publicationDate":"2022-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s41779-022-00796-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4520684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Hydrothermal synthesis and photocatalytic properties of nitrogen-doped cobalt/cerium/ZnO nanocomposite 氮掺杂钴/铈/ZnO纳米复合材料的水热合成及其光催化性能

IF 1.9 4区材料科学

Journal of the Australian Ceramic Society Pub Date : 2022-09-07 DOI: 10.1007/s41779-022-00795-2

Manisha Dagar, Suresh Kumar, Amit Jain, Anil Vohra, Pawan Kumar

{"title":"Hydrothermal synthesis and photocatalytic properties of nitrogen-doped cobalt/cerium/ZnO nanocomposite","authors":"Manisha Dagar, Suresh Kumar, Amit Jain, Anil Vohra, Pawan Kumar","doi":"10.1007/s41779-022-00795-2","DOIUrl":"10.1007/s41779-022-00795-2","url":null,"abstract":"<div><h2>Abstract\u0000</h2><div><p>In the present article, the hydrothermal method was used for the synthesis of nitrogen-doped ZnO/Co/Ce photocatalyst. The characterization techniques used to describe the ZnO nanocomposites were Fourier transform infrared (FTIR), UV–visible spectroscopy (UV), photoluminescence (PL), scanning electron microscopy (SEM), energy-dispersion X-ray (EDX), X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), and X-ray photoelectron spectroscopy (XPS). The PL spectroscopy was used to study the existence of various lattice defects with doping impact on the electron–hole recombination of the ZnO. The various peaks in the FTIR spectroscopy show the existence of their related functional groups. The EDX technique was used to examine the elemental composition of the samples. The XRD and TEM study was carried out to provide information about the crystal size range between 17.14 and 20.42 nm. The UV–vis spectroscopy was performed to elaborate the decreased energy band gap from 3.2 to 2.75 eV. SEM images were showing the tetragonal nanorod assembly. The analysis of BET results exhibits type 4 adsorption isotherm with a 2.47 nm pore diameter. The XPS spectroscopy was performed which shows the presence of Co, Ce, and N in prepared samples. The photocatalytic activity of the nanocomposite ZnO was analyzed against two different dyes in visible light. 91% and 76% of photocatalytic degradation have been achieved satisfactorily in the case of Congo red and methylene blue dyes respectively.</p><h3>Graphical abstract</h3>\u0000 <figure><div><div><div><picture><source><img></source></picture></div></div></div></figure>\u0000 </div></div>","PeriodicalId":49042,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"58 5","pages":"1571 - 1583"},"PeriodicalIF":1.9,"publicationDate":"2022-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s41779-022-00795-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4320838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Effective role of P2O5 on in vitro bioactivity of CaO–ZnO–P2O5/P2O5 glass composites P2O5对CaO-ZnO-P2O5 /P2O5玻璃复合材料体外生物活性的影响

IF 1.9 4区材料科学

Journal of the Australian Ceramic Society Pub Date : 2022-09-06 DOI: 10.1007/s41779-022-00793-4

Koichi Shigeno, Takumi Kawaguchi, Hirotaka Fujimori

{"title":"Effective role of P2O5 on in vitro bioactivity of CaO–ZnO–P2O5/P2O5 glass composites","authors":"Koichi Shigeno, Takumi Kawaguchi, Hirotaka Fujimori","doi":"10.1007/s41779-022-00793-4","DOIUrl":"10.1007/s41779-022-00793-4","url":null,"abstract":"<div><h2>Abstract\u0000</h2><div><p>Composite glass systems without SiO<sub>2</sub> have attracted research interest to solve the challenges associated with SiO<sub>2</sub> glass-based bioactive materials. Herein, we synthesized phosphate glass composites, which involves CaO–ZnO–P<sub>2</sub>O<sub>5</sub> glass (composed of orthophosphate (Q<sup>0</sup>) or pyrophosphate (Q<sup>1</sup>) groups)) and a small amount of P<sub>2</sub>O<sub>5</sub> glass (composed of metaphosphate (Q<sup>2</sup>) groups), by melt quenching. The effects of the added P<sub>2</sub>O<sub>5</sub> glass content on the in vitro bioactivity were then investigated. From the simulated body fluid (SBF) test, the maximum weight gain values were obtained regardless of the base glass, and spherical precipitates were observed on the sample surface with 2 wt.% added P<sub>2</sub>O<sub>5</sub> by SEM. The addition of ≥ 3 wt.% P<sub>2</sub>O<sub>5</sub> glass decreased the weight gain, retained the structure of the sample, and increased the size of the spherical precipitates. The spherical precipitates were Ca–Zn phosphate compounds presumed by XRD analysis to be a mixture of Ca–Zn hydroxyapatite and parascholzite. Among the samples comprising P<sub>2</sub>O<sub>5</sub> glass, the Q<sup>0</sup> group glass-based composites exhibited larger weight gain than the Q<sup>1</sup> group glass-based composites. Therefore, three factors are crucial in the precipitation and growth of phosphate compounds on the sample surface in the in vitro test: (1) promoted dissolution of the P component in the SBF solution; (2) increased abundance of Q<sup>0</sup>, which is the starting point of precipitation; and (3) co-existence of dissolution and precipitation in separate glasses.</p></div></div>","PeriodicalId":49042,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"58 5","pages":"1551 - 1561"},"PeriodicalIF":1.9,"publicationDate":"2022-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4283578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nano-characterization and in vitro bioactivity of chemically synthesized fluorapatite 化学合成氟磷灰石的纳米表征及体外生物活性

IF 1.9 4区材料科学

Journal of the Australian Ceramic Society Pub Date : 2022-09-05 DOI: 10.1007/s41779-022-00797-0

R. Palanivelu, Sridharan Sundharam, K. Sivasubramanian

{"title":"Nano-characterization and in vitro bioactivity of chemically synthesized fluorapatite","authors":"R. Palanivelu, Sridharan Sundharam, K. Sivasubramanian","doi":"10.1007/s41779-022-00797-0","DOIUrl":"10.1007/s41779-022-00797-0","url":null,"abstract":"<div><h2>\u0000Abstract\u0000</h2><div><p>Fluorapatite-based bioactive nanomaterials have the potential to be useful in a broad range of medical applications. Fluorapatite nanoparticles were synthesized by irradiation-assisted chemical precipitation technique using the precursors of calcium nitrate tetrahydrate, di-ammonium hydrogen phosphate, and ammonium fluoride with a molar ratio of Ca:P:F as 5:3:1 respectively. Analytical studies such as XRD, FTIR, FT-Raman, SEM, and TEM revealed that all samples have nano-sized particles and do not contain any discernible crystalline impurities. The synthesized fluorapatite particles were found to be rod shaped with dimensions 32 × 19 nm. The bioactivity of fluorapatite nanoparticles against the dental bacterial pathogens <i>Fusobacterium nucleatum</i> and <i>Streptococcus mutans</i> and the minimum inhibitory concentrations were determined. Furthermore, the antioxidant properties of synthesized fluorapatite nanoparticles were assessed using the DPPH assay. MTT assay was performed on human lung carcinoma cell lines (A549) to determine the cell viability after incubation with fluorapatite nanoparticles.</p></div></div>","PeriodicalId":49042,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"58 5","pages":"1603 - 1614"},"PeriodicalIF":1.9,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4231617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The effect of Nd2O3 on the gamma-neutron shielding properties for iron-boron-phosphate composites Nd2O3对铁硼-磷酸复合材料γ -中子屏蔽性能的影响

IF 1.9 4区材料科学

Journal of the Australian Ceramic Society Pub Date : 2022-09-01 DOI: 10.1007/s41779-022-00794-3

Huseyin Firat Kayiran, Iskender Akkurt, Roya Boodaghi Malidarre, Feride Kulali

引用次数: 1