Environmental Science: Nano最新文献

{"title":"Non-targeted lipidomics reveals the distinct metabolic mechanisms of nZnO and Zn ions in fish liver","authors":"Shuoli Ma, Wen-Xiong Wang","doi":"10.1039/d5en00160a","DOIUrl":"https://doi.org/10.1039/d5en00160a","url":null,"abstract":"The toxicity of environmental pollutants is often manifested through metabolic disruptions and damage to detoxification organs. However, current understanding is insufficient to explain the physiological response mechanisms of metabolically abnormal fish exposed to secondary pollutants in complex natural environments. This study established a fish model with non-alcoholic fatty liver to evaluate the effects of Zn oxide nanoparticles (nZnO) and Zn²⁺ on physiological metabolism using untargeted lipidomics and bioimaging techniques. Nile red and hematoxylin and eosin (H&E) staining indicated that increased Zn levels reduced the number of lipid droplets (LDs) and hepatocyte vacuolization in the livers of groupers. Non-targeted lipidomics, employing an unsupervised K-means clustering algorithm, identified key lipid profiles that differentiated the effects of nZnO and Zn, including TG (16:0/16:1/18:1), PC (18:2/22:6), TG (18:2/18:2/22:6), SM (d18:1/24:1), and TG (16:1/18:1/18:2). The increased content of SM (d18:1/24:0) indicated that fish liver cells internalized nZnO via lipid raft structures on the cell membrane, a process distinct from Zn ion uptake. Moreover, nZnO/Zn treatments significantly activated lipolysis regulation in fish liver experiencing oxidative stress. This study contributed to the use of non-targeted lipidomics to identify differential biomarkers of nZnO and Zn, as well as their compensatory mechanisms in metabolically abnormal fish. These findings provide novel insights into the effects of nanometal exposure on aquatic animal health in complex environments.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"33 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143666636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design and Fabrication of Phosphazene-based Porous Organic Materials for Iodine Adsorption","authors":"Yichao Wu, Qianyi Zuo, Tao Jiang, Zilong Wang, Jia Hong Pan, Zhuoyu Ji","doi":"10.1039/d5en00136f","DOIUrl":"https://doi.org/10.1039/d5en00136f","url":null,"abstract":"Iodine plays a critical role in nuclear industries, medicine, and environmental monitoring, often occurring in trace amounts in wastewater and contaminated environments. Despite the exploration of various adsorbents for iodine capture, many exhibit limitations such as low adsorption capacities, poor performance, and limited reusability. Therefore, novel materials with enhanced iodine extraction capabilities are needed. Polymer-based adsorbents offer substantial promise due to their unique chemical structures and rich functional groups. Via nucleophilic substitution of hexachlorocyclotriphosphazene (HCCP) with various amines, five polyphosphazene polymers—PDD-HCCP, BDP-HCCP, BDD-HCCP, TAPA-HCCP, and TAPDA-HCCP—were synthesized in this study.. These polymers exhibited excellent iodine adsorption capacity, with TAPDA-HCCP achieving the highest theoretical capacity in both iodine vapor and aqueous phases (I₂: 7.83 g·g⁻¹, CH₃I: 1.26 g·g⁻¹, Iodine water: 3.69 g·g⁻¹, iodine cyclohexane: 1.15 g·g⁻¹). In aqueous iodine adsorption experiments, the kinetics followed a pseudo-second-order model, indicating chemical adsorption as the dominant mechanism. Specifically, equilibrium was reached within 240 min, with PDD-HCCP and TAPDA-HCCP achieving iodine removal efficiencies greater than 90%. The adsorption isotherms fitted the Langmuir model, suggesting monolayer adsorption. FT-IR and XPS analyses confirmed that the -NH, P=N-P, and sp³ N groups play a crucial role in forming charge-transfer complexes with iodine. These results highlight the potential of polyphosphazene-based adsorbents for efficient iodine capture in environmental applications.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"28 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143666603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nanomaterials ROS: A Comprehensive Review for Environmental Applications","authors":"Vishakha Takhar, Simranjit Singh","doi":"10.1039/d5en00049a","DOIUrl":"https://doi.org/10.1039/d5en00049a","url":null,"abstract":"Nanomaterials have garnered significant attention for their ability to generate reactive oxygen species (ROS), offering transformative solutions for environmental remediation. This review provides a comprehensive analysis and recent advancements in ROS generation mechanisms catalyzed by advanced nanostructures, including metal oxides, two-dimensional materials, perovskites, and hybrid composites. Key applications, such as wastewater purification, air purification, and degradation of persistent pollutants, are explored, demonstrating the unparalleled potential of these materials in addressing pressing environmental challenges. Techniques for detecting ROS, such as electron spin resonance (ESR), fluorescence probes, and spectrophotometry, are critically reviewed, highlighting their role in evaluating catalytic efficiency and understanding ROS dynamics. Special attention is given to design innovations, including heterojunction engineering and upconversion-based systems, which enhance light absorption, charge separation, and catalytic activity across the spectrum. Despite substantial progress, challenges such as scalability, long-term stability, cost-efficiency, and environmental compatibility persist. To address these issues, the review emphasizes the importance of green synthesis approaches and lifecycle assessments as pivotal strategies for future development. By synthesizing state-of-the-art advancements and identifying key research gaps, this review underscores the potential of nanomaterials to revolutionize ROS-mediated environmental remediation while setting a roadmap for sustainable innovation.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"15 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143666746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Soil species sensitivity distributions for terrestrial risk assessment of silver nanomaterials: the influence of nanomaterial characteristics and soil type†","authors":"Sarah L. Roberts, Elise Morel, Richard K. Cross, David J. Spurgeon, Marta Baccaro and Elma Lahive","doi":"10.1039/D4EN01102C","DOIUrl":"10.1039/D4EN01102C","url":null,"abstract":"<p >Silver nanomaterials (AgNMs) are released into the soil through various anthropogenic activities, including as biocides and in biosolid amendments. There is an abundance of toxicity data available for AgNMs and soil organisms, yet the assessment of their ecological risk and the influence of NM characteristics and exposure conditions on AgNM hazard in soils are not well elucidated. In this study, available soil ecotoxicology data for AgNMs and other Ag forms were collated from literature into a database. Using this database, species sensitivity distributions (SSDs) for soil biota were constructed. From these SSDs we calculated hazard concentrations for 50% of species (HC<small>₅₀</small>) that would allow us to robustly compare effects on soil organisms soil or liquid media and to assess relationships to NM properties (coating) and major soil properties. For all AgNMs, the calculated HC<small>₅₀</small> value was 3.09 (1.74–5.21) mg kg<small>⁻¹</small> for studies conducted with soil dwelling species in soils and 0.70 (0.32–1.64) mg L<small>⁻¹</small> for liquid exposures. In comparison, the HC<small>₅₀</small> value for Ag salt (silver nitrate, AgNO<small>₃</small>) was 2.74 (1.22–5.23) mg kg<small>⁻¹</small> for soil and 0.01 (0.01–0.03) mg L<small>⁻¹</small> for liquid-based exposures. At a detailed level, the Ag salt was more toxic than the NMs across most soil species and endpoints. Further analyses indicated that both NM surface coating and soil type influence AgNM toxicity. In soil exposures SSDs indicated similar effects across differently coated NM forms, however, in liquid-based assays both uncoated and PVP-coated AgNMs were more toxic to soil tested organisms than citrate-coated AgNMs. Soil cation exchange capacity (CEC) and organic carbon (OC) also influenced AgNM toxicity, with AgNMs being more toxic in soils with higher CEC and lower OC. Our study provides a data resource of toxicity data for soil species and the first hazard thresholds for risk assessment of AgNMs in soils and provides new insights into the factors driving AgNM hazard for soils species.</p>","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":" 4","pages":" 2473-2485"},"PeriodicalIF":5.8,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/en/d4en01102c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143666656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Omics approaches in environmental effect assessment of engineered nanomaterials and nanoplastics","authors":"Alla Khosrovyan, Maša Vodovnik, Monika Mortimer","doi":"10.1039/d4en01169d","DOIUrl":"https://doi.org/10.1039/d4en01169d","url":null,"abstract":"In light of the increasing application of omics technologies, such as transcriptomics, proteomics, and metabolomics, in chemical safety evaluations and interest in using these advanced tools for regulatory toxicity testing, this review critically discusses the findings from omics studies involving engineered nanomaterials and nanoplastics in aquatic and terrestrial invertebrates, unicellular organisms (cyanobacteria, fungi, microalgae and protozoa), aquatic vertebrates (fish) and crop plants. The studies published over the past nine years were analyzed based on the nanomaterial types, organism groups, and the omics approaches used, with a focus on extracting information about toxicity mechanisms. Many of these studies highlighted the role of dissolved metal ions in the toxicity of soluble metal NPs such as Ag, ZnO, Cu- and Fe-based NPs. The results generally indicate that these NPs and respective released metal ions perturb different molecular pathways, particularly in the organisms or cells that internalize NPs by endocytic mechanisms. In contrast, non-soluble metal NPs (TiO2, CeO2, and SiO2 NPs) have proven relatively less acutely ecotoxic, but omics studies have revealed molecular pathway modulations, initiated by membrane interactions and cellular internalization. Overall, a common outcome of exposure to metal-based NPs is the disruption of energy metabolism. On the other hand, polymeric NPs, such as nanoplastics (primarily polystyrene NPs) tend to induce molecular-level events mainly by inducing oxidative stress. While a substantial amount of mechanistic data related to environmental nanotoxicity has been generated using omics methods, adverse outcome pathways (AOP) in ecotoxicology model organisms have only been proposed for Ag and polystyrene NPs. This indicates that New Approach Methodologies (NAMs) hold great potential for the safety assessment of nanomaterials in the environment, yet this potential has not been fully realized.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"91 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143660534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing crop yields and quality of agricultural products: research progress in nanofertilizer applications","authors":"Qian Qin, Quanlong Wang, Yuhao Chen, Yuying Tang, Yanru Ding and Yukui Rui","doi":"10.1039/D5EN00075K","DOIUrl":"10.1039/D5EN00075K","url":null,"abstract":"<p >With a growing population demanding better nutrition and living standards, the quality and safety of agricultural outputs are under close watch. However, farming faces challenges from environmental stress and diseases that reduce crop quality and quantity. Traditional methods, such as pesticides and fertilizers, though effective in boosting crop yields, can harm the environment and leave residues. Nanotechnology is presently being investigated in agriculture to overcome these challenges, as nano-fertilizers can release nutrients gradually over a longer period of time, minimizing nutrient loss and enhancing crop uptake efficiency. The purpose of this paper is to provide a comprehensive synthesis and analysis of the impact of nanofertilizers on crop yield and nutritional quality, as well as to elucidate the mechanisms underlying their effects on crops. This analysis aims to provide insights into the revolutionary potential of nanofertilizers in improving crop yields by examining the subtle interplay between nanotechnology and agricultural practices while ensuring the safety and nutritional integrity of agricultural output.</p>","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":" 4","pages":" 2193-2207"},"PeriodicalIF":5.8,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143660535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bicarbonate Concentrations Affect Arsenic Release from Arsenopyrite and Nanoscale Iron (III) (Hydr)oxide Formation: Importance of Unconfined Aquifer Carbonate Chemistry","authors":"Ping I Chou, Xuanhao Wu, Zhenwei Gao, Yaguang Zhu, Young-Shin Jun","doi":"10.1039/d4en00805g","DOIUrl":"https://doi.org/10.1039/d4en00805g","url":null,"abstract":"Managed aquifer recharge (MAR) is an important engineering solution for achieving sustainable groundwater management. Unfortunately, if not operated properly, MAR can cause undesirable arsenic mobilization in groundwater. To avoid unexpected arsenic mobilization, we need a better understanding of the evolving water chemistry and nanoscale mineral–water interfaces in MAR systems. Bicarbonate is a ubiquitous groundwater component, but its effect on arsenic mobilization in MAR is not fully understood. Hence, we examined the effects of bicarbonate concentrations (0.01 mM, 0.1 mM, 1.0 mM, and 10 mM) on the dissolution of arsenopyrite and the nanoscale secondary mineral formation in both open systems (mimicking shallow unconfined aquifers) and closed systems (mimicking deep confined aquifers) over 7 days. In the open system, owing to pH evolution and the subsequent formation and growth of iron (III) (hydr)oxide nanoparticles, the arsenic mobilization decreased with increasing bicarbonate concentrations. However, the increase from 1.0 to 10 mM formed surface complexation and aqueous arseno-carbonate complexes and did not further reduce the arsenic mobilization. In the closed system, arsenic mobilization and iron (III) hydr(oxide) nanoparticle formation were similar for all conditions. This study highlights bicarbonate-controlled nanoparticle formation and arsenic mobilization in MAR systems, providing valuable insights for enabling safer and more sustainable MAR operations.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"55 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143640252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Eu (III) doped downconverting nanophosphors (GdVO4:Eu3+) for selective and sensitive detection of arsenic (III) in water","authors":"Jitender Kumar, Indrajit Roy","doi":"10.1039/d4en00885e","DOIUrl":"https://doi.org/10.1039/d4en00885e","url":null,"abstract":"Heavy metal ions pose a major threat to both organisms and environment. Among various heavy metals, Arsenic (As3+) or arsenite is one of the most toxic ions present in ground water. Long-term exposure to arsenic-contaminated water triggers a number of health hazards including lung cancer, and harm the liver and kidneys. Therefore, detection of this heavy metal in water samples is of paramount importance. Herein, we have synthesized citrate-stabilised GdVO4:Eu3+ downconverting nanophosphors (DCNP) with a facile hydrothermal process and studied them as an efficient photoluminescence probe for highly selective and sensitive detection of As3+ ions in water. The energy transfer from the vanadate group (VO43-) to the lanthanide-dopant (Eu3+) causes these nanophosphors to exhibit sharp, strong and steady luminescence emission upon excitation in the Uv-Visible range. Since As³⁺ is predominantly detected in the form of HAsO₃²⁻ in aqueous environment under neutral to slightly basic conditions in this work, during the detection process it selectively binds covalently to the Eu-OH present on the DCNP surface, resulting in the quenching of sharp DCNP emission. Other metal ions were found to have much lesser quenching effect due to their non-selectivity. The detection limit (LOD) was found out to be as low as 0.039 µM (39 nM), which is much lower than the WHO allowed contamination levels of As3+ in drinking water (0.13 µM). This nanosesnor can efficiently detect As3+ in a wide range of pH. Further, as interfering ions do not influence the detection process, this is a promising approach for the selective and sensitive detection of As3+ ions in complex aqueous specimen.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"69 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143640253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Locally amplified electric field in laser-induced graphene surfaces – role of nanofibers for enhanced microbial inactivation†","authors":"Nandini Dixit, Akhila M. Nair, Akshaykumar N. Desai, Venkatasailanathan Ramadesigan and Swatantra P. Singh","doi":"10.1039/D5EN00084J","DOIUrl":"10.1039/D5EN00084J","url":null,"abstract":"<p >Laser-induced graphene (LIG) shows excellent antimicrobial activity with a low applied voltage; however, the mechanism is inadequately understood. Herein, we investigate the role of the nanofibers of LIG in the electrochemical disinfection mechanism both experimentally and computationally. LIG with a nanofibrous surface performs better than non-nanofibrous/crushed LIG (Cr-LIG), showing enhanced microbial inactivation. The role of the induced electric field and electrochemical reactions in the disinfection mechanism is being elucidated. A COMSOL simulation is performed, which shows that the induced electric field on the nanofiber tips can reach up to &gt;10<small>⁶</small> V m<small>⁻¹</small> and create localized charge generation (∼900 C m<small>⁻³</small>). This localized charge generation effect can result in enhanced charge transfer phenomena in one-dimensional surfaces for electrochemical functioning and cell membrane polarization. Our study demonstrates for the first time that nanofibrous LIG surfaces can intensify the electric field and the generation of oxidants during the electrochemical disinfection process. These results have potential applications not just in the field of disinfection but also in electrochemical sensing and other low-voltage operation procedures.</p>","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":" 4","pages":" 2436-2448"},"PeriodicalIF":5.8,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143640257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Shape-Engineered Ag/Ag₂O/CuO Nanostructures for Synergistic Agrochemical Remediation and Microbial Inhibition","authors":"Monika Kherwal, Akanksha Gupta, Ravinder Kumar, Vijay Kumar Goel, Ajay Kumar Mishra, Priyanka Jhajharia, Vinod Kumar","doi":"10.1039/d5en00156k","DOIUrl":"https://doi.org/10.1039/d5en00156k","url":null,"abstract":"The global society widely utilises pesticides to enhance agricultural productivity. These pesticides adversely affect the environment by leaching into groundwater and contaminating crops. To tackle this issue, we have synthesized Ag/Ag2O/CuO nanocomposite (NC) using one pot hydrothermal synthesis process at a low temperature as a potential source for the removal of toxins from wastewater. Comprehensive characterization of the NC was performed using various analytical techniques. The PXRD analysis confirms the synthesis of Ag/Ag2O/CuO NC. XPS validates a peak at 367.5 eV in the core level high-resolution spectra of Ag (O), which was fitted by a Gaussian profile, results in the 16.75% and 11.64% concentration of Ag and Ag+ ions respectively. DRS analysis observed a significant shift in the band gap from 1.51 to 1.65 eV in NC, this blue shift is attributed to the Moss-Burstein effect, due to the addition of high concentration of silver. The improved performance of the NC as photocatalysts can be attributed to the existence of oxygen vacancies, as confirmed by XPS investigation and EPR spectrum. The photodegradation of isoproturon has been performed using UV Light and produced Ag/Ag2O/CuO NC which exhibits photocatalytic degradation efficiency of 98%. The photocatalyst was also explored for its effectiveness in regeneration and repurposing of isoproturon photodegradation. Antibacterial activity against E. coli and Streptomyces toxytricini strain is observed and results in effective inhibition of the growth of bacteria using the produced NC.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"23 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143618770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}