Nano-Structures & Nano-Objects最新文献

{"title":"Investigation of magnetic and electric properties of bismuth ferrite nanoparticles at different temperatures","authors":"","doi":"10.1016/j.nanoso.2024.101304","DOIUrl":"10.1016/j.nanoso.2024.101304","url":null,"abstract":"<div><p>Multiferroic bismuth ferrite shows a massive interest in its potential application in magnetic and electronic devices however maintaining high purity in bismuth ferrite nanoparticles at different temperatures is a difficult task for researchers. Several samples are prepared with different annealing temperatures and investigated in different atmospheres to recognize magnetic and electrical properties. A xerogel powder of bismuth ferrite is synthesized by the sol-gel route. The powder then anneals at 500, 600, 700, and 800 °C to form a nanostructure. X-ray diffraction analysis confirms that the annealed samples are in rhombohedral structure with R3c space symmetry and show a significant increase in crystal size and reduction in lattice strain with increasing annealing temperature. FESEM reveals the microstructural features of annealed nanoparticles which represent the conversion of spherical to cubic morphology with annealing temperature. Vibrating sample magnetometer investigations were conducted as a function of annealing and surface (300, 200, 80 K) temperatures. Insignificant variations of saturation magnetization are detected with surface temperature, but considerable degradation is observed with increasing annealing temperatures. The band-gap energy of bismuth ferrite nanoparticles annealed at 500, 600, 700, and 800 ºC is measured and significant escalation is observed from 1.93 to 2.06 eV. Electrical property analyses have been investigated as a function of frequency at different surface temperatures of 50, 100, 150, 200, 250, 300, and 350 °C. Remarkable variations are established in the electric and magnetic properties. Bismuth ferrite has been widely investigated due to its promising multifunctional device applications such as memory devices, spintronics, sensors, actuators, and photocatalytic and photovoltaic applications.</p></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":null,"pages":null},"PeriodicalIF":5.45,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142095250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tailoring structural and magnetic properties of NiCu nanowires by electrodeposition","authors":"","doi":"10.1016/j.nanoso.2024.101309","DOIUrl":"10.1016/j.nanoso.2024.101309","url":null,"abstract":"<div><p>In this work, we investigated the tailoring of structural and magnetic properties of NiCu nanowires through electrodeposition. Continuous (S1) and composition-modulated (S2) wires were fabricated by electrodeposition using porous alumina membranes as a template. Morphological characterization revealed that the total length of the wires was 8 ± 3 µm in both S1 and S2. For the composition-modulated wires, the length of the segments with the lowest and highest Cu concentrations was 1.2 ± 0.4 µm and 226 ± 65 nm, respectively. Mapping by energy dispersive spectroscopy (EDS) revealed that the concentration of copper and nickel varied along the length of the composition-modulated nanowires, while the continuous nanowires contained a relatively constant concentration of both metals. It is demonstrated that the change in Cu concentration along the wire modifies the lattice parameter, average crystallite size (<em>D</em>) and lattice strain (<em>ε</em>) of Ni. This result is pivotal for understanding the magnetic properties of the wires, as nickel is primarily responsible for the magnetic behavior of the wires. From the ferromagnetic resonance (FMR) results, the linewidth and resonance field values for samples S1 and S2 were determined. It was demonstrated that the greater deformation in the nickel lattice in NiCu nanowires increases the angular dependence of the resonance field. Furthermore, the smaller nickel crystallite size was shown to increase spin dispersion and magnetic damping, leading to complex behavior in FMR responses. Finally, it was demonstrated how Cu can influence the magnetic properties such as coercivity (<em>H</em>_<em>C</em>) and squareness (<em>M</em>_<em>R</em>/<em>M</em>_<em>S</em>) of the wires. Overall, this work contributes to understanding the tailoring of structural and magnetic properties of NiCu nanowires through electrodeposition.</p></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":null,"pages":null},"PeriodicalIF":5.45,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142095253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Single-domain configuration tune high coercive field in Co-precipitated monazite-decorated cobalt ferrite nanoparticles","authors":"","doi":"10.1016/j.nanoso.2024.101301","DOIUrl":"10.1016/j.nanoso.2024.101301","url":null,"abstract":"<div><p>Single-domain configuration is one of the important key in the applied current- technology especially information technology. In order to address this issue, a magnetic modification of cobalt ferrite nanoparticles (CFO-NPs) by decorating the monazite-natural-mineral (Ce) is presented. Monazite-decorated CFO-NPs are successfully synthesized by the co-precipitation method. The obtained nanoparticle samples are annealed at 200 °C, 300 °C, and 400 °C for 5 hours. XRD results confirms the successful decoration of the monazite sand with CFO-NPs, as demonstrated by the distinctive peaks of CFO-NPs, as well as the major peaks of the monazite-sand. The presence of monazite in the CFO-NPs sample was confirmed by the EDS results. With increasing annealing temperature, the crystallite size increases, respectively. FTIR results show that the monazite-decorated CFO-NPs outcome absorption peaks at <em>k</em>_t ∼590/cm and <em>k</em>_o ∼390/cm, which are the original absorptions of CFO-NPs. VSM results showed that the single-domain configuration realized owing high the <em>H</em>_C (supported by <em>K</em>₁ and <em>K</em>_σ) for samples without and annealed at 200 °C, whereas the multi-domain configuration appears to have a small <em>H</em>_C (supported only by <em>K</em>₁) for samples annealed at 300 °C and 400 °C. The largest <em>H</em>_C of the monazite-decorated CFO-NPs was obtained with the annealing temperature at 200 °C, i.e., 3.02 kOe, suggesting that it be supported by both the <em>K</em>₁ and <em>K</em>_σ. The magnetic properties obtained also indicate the potential for developing permanent magnets.</p></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":null,"pages":null},"PeriodicalIF":5.45,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142095251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unveiling complex magnetic behaviour and effective photo-Fenton catalytic activity in the mixed phases of spinel and wurtzite structures of Fe-incorporated ZnO nanocrystals","authors":"","doi":"10.1016/j.nanoso.2024.101308","DOIUrl":"10.1016/j.nanoso.2024.101308","url":null,"abstract":"<div><p>A comprehensive exploration was conducted on the structural features, optical bandgap, magnetic characteristics and photo-Fenton catalytic activity of chemically synthesized Fe-substituted ZnO nanocrystals. Previous studies have demonstrated that undoped ZnO adopts a hexagonal wurtzite structure. X-ray powder diffraction analysis disclosed the persistence of the wurtzite hexagonal structure in 1 % Fe-incorporated ZnO, while the presence of a secondary cubic phase of spinel type structures (ZnFe₂O₄) emerged in the ZnO lattice with Fe content ≥ 3 %. Remarkably, the proportion of the secondary phase is systematically increased from 2.75 % to 17.90 % as the Fe content was raised from 3 % to 10 %. Microscopy analysis unveiled hexagonal, spherical, and rod-like structures across all nanocrystals. Selected area electron diffraction patterns further confirmed the coexistence of cubic and hexagonal phases. Raman spectroscopy indicated a decline in crystalline quality and the introduction of defects and disorder in the host lattice due to Fe integration. The absorption spectra were taken to assess the impact of Fe substitution on the optical properties and revealed a decreasing trend in the optical bandgap from 3.23 to 3.21 eV and 2.21–2.05 eV with rising Fe content. The first band gap is related to the ZnO and the latter is the optical band gap of ZnFe₂O₄. The photoluminescence plots displayed near band edge emissions as well as visible emissions, which intensified with increased Fe-doped nanocrystal concentrations. X-ray photoelectron spectroscopy analysis affirmed the integration of Fe²⁺ and Fe³⁺ cations into the ZnO matrix. Thorough magnetic investigation uncovered complex magnetic behaviour attributed to the emergence of a secondary spin glass-like phase within the weak ferromagnetic ZnO host. The co-existence of two phases containing Fe²⁺ and Fe³⁺ ions enhanced the photo-Fenton catalytic activity, leading to the complete decomposition of various organic pollutants such as methylene blue and crystal violet. The photocatalytic test also showed the ZnO co-hosting ZnFe₂O₄ had a decolouration efficiency of 80.62 % and 77.88 % for methyl orange and thymol blue dyes. The coexistence of two phases in Fe-incorporated ZnO nanocrystals reveals complex magnetic behaviour and enhanced photo-Fenton catalytic activity. This finding holds potential for designing innovative materials applicable in futuristic spintronics devices and waste water treatment methodologies.</p></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":null,"pages":null},"PeriodicalIF":5.45,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142084419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A comprehensive study on the influence of single and multiple phytochemicals in facilitating green synthesis of ZrO2 nanoparticles","authors":"","doi":"10.1016/j.nanoso.2024.101303","DOIUrl":"10.1016/j.nanoso.2024.101303","url":null,"abstract":"<div><p>In this work, we conducted an extensive study of fabrication of ZrO₂ NPs mediated by one type and mixture of plant secondary metabolites in three different calcination temperatures to investigate the influence of the type and concentration of phytochemicals in the green synthesis of nanoparticles. Gallic acid, which is a phenolic compound with strong antioxidant activity, enables to stabilize particle surfaces thereby preventing aggregation and agglomeration of particles. GC-MS and LC-HRMS analysis reveal that polar leaf extract as mixture of secondary metabolites contains ten volatile and forty-one polar compounds, respectively. The TGA/DTG experiments demonstrate that the type and concentration of secondary metabolites substantially influence the crystal formation and ultimately impact the size, morphology, surface texture, and acidity of ZrO₂ NPs. Well crystalline and homogenous ZrO₂ nanospheres were successfully formed by using gallic acid and polar leaf extract as biofuels with crystal size ranging from 6.30–61.92 nm and average particle size ranging from 26–39 nm. The green prepared-ZrO₂ NPs possess surface area from 6.37 to 76.02 m²/g, pore volume from 0.049 to 0.392 cm³/g, pore diameter from 4.17 up to 50.75 nm, and acidity from 0.0574 to 2.0966 mmol/g. Apart from that, this research also indicates that applied calcination temperature affects the features of the nanoparticles mentioned above, except for morphology.</p></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":null,"pages":null},"PeriodicalIF":5.45,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142084417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unlocking potential of zinc oxide nanoparticles in enhancing topical drug delivery","authors":"","doi":"10.1016/j.nanoso.2024.101302","DOIUrl":"10.1016/j.nanoso.2024.101302","url":null,"abstract":"<div><p>This review explores the pivotal role of zinc oxide nanoparticles in advancing modern topical drug delivery. Delving into topical drug delivery systems, it addresses the significance, challenges, and current trends. The section on zinc oxide nanoparticles provides a comprehensive overview, encompassing their properties, synthesis methods, and characterization techniques, highlighting their unique advantages in drug delivery. The focal point of the review is the multifaceted application of zinc oxide nanoparticles in topical drug delivery, showcasing their effectiveness in anti-inflammatory treatments, psoriasis management, combating skin cancer, antibacterial interventions, and promoting wound healing. Intradermal application of zinc oxide nanoparticles demonstrated notable efficacy in diminishing skin infection, lowering bacterial burden, and alleviating inflammation, concurrently fostering enhancement in the structural integrity of the infected skin. To recapitulate the remarkable properties of zinc oxide nanoparticles, offer an excellent alternative for revolutionizing topical drug delivery. Their enhanced permeation, stability, and biocompatibility offer tremendous potential for improving therapeutic outcomes.</p></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":null,"pages":null},"PeriodicalIF":5.45,"publicationDate":"2024-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142048370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultrasonic assisted synthesis of nanoporous carbon/CeVO4 nanocomposite for supercapacitor and photocatalytic applications","authors":"","doi":"10.1016/j.nanoso.2024.101305","DOIUrl":"10.1016/j.nanoso.2024.101305","url":null,"abstract":"<div><p>Here, nanoporous carbon (NPC)/CeVO₄ nanocomposite synthesized via ultrasonic assisted method for supercapacitor and tartrazine dye degradation application. Transmission electron microscope (TEM) studies confirmed the CeVO₄ nanoparticles well embedded on the NPC surface in the NPC/CeVO₄ nanocomposite. Spherical shaped CeVO₄ nanoparticles are well incorporated on the surface of NPC therefore NPC/CeVO₄ nanocomposite which possess a porous-like structure would improve the supercapacitor applications and dye degradation performance. As expected, the specific capacitance (C_s) values (555 F g⁻¹) of NPC/CeVO₄ nanocomposite showed enhanced performance as compared to CeVO₄ nanoparticles (234 F g⁻¹) at a current density of 1 A g⁻¹ and the capacitance retention of the designed electrode as 95 % after 5000 cycles. The photodegradation of tartrazine dye using pure CeVO₄ nanoparticles and NPC/CeVO₄ nanocomposite was explored under visible light irradiation. The photocatalytic degradation experiment demonstrated that the NPC/CeVO₄ exhibits the maximum degradation efficiency (98.76 %) of the tartrazine with was reached within 120 min. Moreover, the rate constant of NPC/CeVO₄ for tartrazine dyes decomposition was 0.0192 min⁻¹ representing that it is two-fold higher than pure CeVO₄ (0.0073 min⁻¹). The superior electrochemical and photocatalytic properties of NPC/CeVO₄ nanocomposite have been observed due to the well-designed structure and high surface area. Consequently, as-prepared NPC/CeVO₄ material could be a promising material for electrochemical supercapacitor and dye degradation of the tartrazine organic pollutant.</p></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":null,"pages":null},"PeriodicalIF":5.45,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142048371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nano revolution: Exploring the frontiers of nanomaterials in science, technology, and society","authors":"","doi":"10.1016/j.nanoso.2024.101299","DOIUrl":"10.1016/j.nanoso.2024.101299","url":null,"abstract":"<div><p>Nanotechnology has emerged as a transformative force, driving breakthroughs across a wide range of fields including materials science, electronics, medicine, agriculture, and energy. This review article discusses the multifaceted landscape of nanomaterials (NMs), highlighting their profound impact across various domains. From advancements in material science to significant shifts in healthcare and environmental remediation, nanotechnology has expanded the boundaries of what is possible. We explore the synthesis, properties, and applications of NMs, showcasing their potential to revolutionize energy storage, catalysis, and drug delivery. Additionally, the societal implications of nanotechnology, addressing ethical considerations, environmental concerns, and regulatory frameworks have been discussed. As nanotechnology continues to evolve, it becomes ever more crucial to highlight its opportunities and challenges to fully harness its potential. This review provides insights into the dynamic and evolving landscape of NMs, illuminating pathways for future research and innovation.</p></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":null,"pages":null},"PeriodicalIF":5.45,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142041290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis, dispersion, functionalization, biological and antioxidant activity of metal oxide nanoparticles: Review","authors":"","doi":"10.1016/j.nanoso.2024.101298","DOIUrl":"10.1016/j.nanoso.2024.101298","url":null,"abstract":"<div><p>Metal oxide nanoparticles (MONPs) have garnered significant interest due to their remarkable properties with applications in diverse fields like human health, agriculture, and general community health. This has led to their widespread use across various scientific and industrial sectors. We focused on four specific types of MONPs: iron oxide, gadolinium oxide, titanium dioxide, and zinc oxide nanoparticles due to their advantages over other metal oxides and noble metals, including cost-effectiveness, biocompatibility, and versatility. This review aimed to highlight examples of MONPs with various implementations and provide a comprehensive revision on the synthesis, dispersion, functionalization, biological and antioxidant activity of the selected MONPs. In this context, we demonstrated the applications of MONPs in various relevant domains and the impact of surface functionalization on the mechanical, optical, and electrical properties of MONPs, particularly in biological and antioxidant activities. Moreover, the volumetric, viscometric, and optical characteristics of MONPs dispersions and their stability challenges were significantly illustrated. The opportunities for MONPs in the global market based on market statistical studies were introduced in order to explore the current and future prospects for MONPs in the commercial market. This review paper offers a thorough and novel perspective on the synthesis, properties, functionalization, and applications of selected MONPs, along with their market potential, making it a valuable resource for researchers and industry professionals. Our revision has sparked interest in the scientific pursuit of uncomplicated and intuitive ideas that make use of regenerative options.</p></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":null,"pages":null},"PeriodicalIF":5.45,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142020428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of fractal dimension and lateral correlation length on surface plasmon resonance activity in sputtered silver layers","authors":"","doi":"10.1016/j.nanoso.2024.101294","DOIUrl":"10.1016/j.nanoso.2024.101294","url":null,"abstract":"<div><p>Fractal and optical characteristics of self-affine surfaces of silver(Ag) thin films deposited through direct current (dc) magnetron sputtering as a function of thickness are investigated and explored here. The surface morphology of Ag thin films is characterized by field emission electron microscopy, and atomic force microscopy technique. The cube counting algorithm is used to extract the fractal dimension of Ag thin film. The surface roughness (interface width) shows monotonic increases with film thickness, while the other parameters, such as lateral correlation length, roughness exponent, and fractal dimension exhibit linear variation with thickness. Our findings reveal distinctive scaling behaviors, with scaling exponents α, β, and 1/z indicating unique growth characteristics. The interface width w increases as a power law of thickness t, <span><math><mrow><mi>w</mi><mo>(</mo><mi>t</mi><mo>)</mo><mo>∝</mo><msup><mrow><mi>t</mi></mrow><mrow><mi>β</mi></mrow></msup></mrow></math></span>, with β=0.39± 0.007, and the lateral correlation length ξ grows as <span><math><mrow><mi>ξ</mi><mrow><mfenced><mrow><mi>t</mi></mrow></mfenced></mrow><mo>∝</mo><msup><mrow><mi>t</mi></mrow><mrow><mn>1</mn><mo>/</mo><mi>z</mi></mrow></msup></mrow></math></span> with 1/z=0.14± 0.002. The roughness exponent extracted from height-height correlation analysis is α=0.61–0.41. The self-affine nature of the Ag thin films is further confirmed by the autocorrelation function. X-ray photoelectron spectroscopy (XPS) is used to the confirm the growth of Ag thin film. Additionally, we have studied the role of fractal dimensions and lateral correlation length (ξ) on the surface plasmon resonance (SPR) of Ag thin film. Our results indicate a red-shifting behavior of SPR with increasing interface width (w), lateral correlation length (ξ), and fractal dimensions. This study suggests the significance of not only the roughness exponent and fractal dimension but also the local surface slope in SPR activity in Ag thin films.</p></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":null,"pages":null},"PeriodicalIF":5.45,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141990517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}