Sustainable Materials and Technologies最新文献

{"title":"Phytic acid-based super antifreeze multifunctional conductive hydrogel for human motion monitoring and energy harvesting devices","authors":"Weijun Wu ,&nbsp;Junfang Chang ,&nbsp;Yanyang He ,&nbsp;Zhiyong Guo ,&nbsp;Sui Wang ,&nbsp;Jie Mao","doi":"10.1016/j.susmat.2024.e01126","DOIUrl":"10.1016/j.susmat.2024.e01126","url":null,"abstract":"<div><div>Conductive hydrogels have broad application prospects in the field of self-powered sensors and energy harvesting devices due to their good electrical conductivity and flexibility. However, at low temperatures, conductive hydrogels are usually frozen, resulting in problems such as poor electrical conductivity and flexibility, which seriously hinder the application of these fields. To address these challenges, phytic acid (PA) was employed as the crosslinker and antifreezing agent in this study. Polyvinyl alcohol (PVA), 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS), chitosan (CS), and PA were used as raw materials to successfully synthesize PVA/AMPS/CS/PA (PACP) multifunctional conductive hydrogels with outstanding antifreeze and water retention properties (freezing point below −80 °C, 30-day water loss rate of 3.5%). In addition, PACP hydrogels exhibit exceptional electrical conductivity of up to 9.4 S/m, along with antibacterial and biocompatible properties, enabling their utilization as wearable sensors on human skin tissue. Notably, the PACP hydrogel-based triboelectric nanogenerator (PACP-TENG) excels in accurately monitoring human motion and powering small electronic devices, facilitating remote control of small light switches. The resulting open circuit voltage is as high as 314 V at 25 °C and about 110 V at low temperature. Therefore, PACP hydrogels with excellent properties are expected to expand their applications in these fields.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"42 ","pages":"Article e01126"},"PeriodicalIF":8.6,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142320284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistically magnetic and dielectric properties of two dimensional Fe3Al@PPy lamellae exhibiting broadband and strong electromagnetic wave absorption","authors":"Xixi Luo ,&nbsp;Tao Liu ,&nbsp;Changze Wei ,&nbsp;Di Lan ,&nbsp;Xin Li ,&nbsp;Ying Ma ,&nbsp;Hui Xie ,&nbsp;Fangli Yu ,&nbsp;Guanglei Wu","doi":"10.1016/j.susmat.2024.e01127","DOIUrl":"10.1016/j.susmat.2024.e01127","url":null,"abstract":"<div><div>Addressing the issue of low impedance characteristics is essential to improve the electromagnetic wave absorption performance of magnetic materials. Herein, two dimensional Fe₃Al@polypyrrole (PPy) lamellae with synergistic magnetic and dielectric properties are fabricated by a mechanical alloying, ordering transformation and polymerization process, which exhibits excellent electromagnetic wave absorption performance. By carefully controlling the thickness of the PPy shell, the optimized Fe₃Al@PPy lamellae show a minimum reflection loss of −45.6 dB and an effective absorption bandwidth of 9.1 GHz at a thickness of only 1.5 mm. The conformal growth of Fe₃Al@PPy lamellae can induce strong interfacial polarization, dipole polarization, multiple scattering effect and magnetic loss behaviors for the attenuation of electromagnetic waves. This study demonstrates a facile strategy for the development of efficient Fe₃Al@PPy composite absorbents showing great potential for practical applications.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"42 ","pages":"Article e01127"},"PeriodicalIF":8.6,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142323702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and characterization of a novel dual sensitive iron nanoparticles incorporated Schiff base composite hydrogel for diabetic wound healing therapy","authors":"R. Suriya,&nbsp;V. Manjusha,&nbsp;M.R. Rajeev,&nbsp;T.S. Anirudhan","doi":"10.1016/j.susmat.2024.e01121","DOIUrl":"10.1016/j.susmat.2024.e01121","url":null,"abstract":"<div><div>Chronic wounds in diabetic patients deteriorate into multiple infections. A multifunctional transdermal material with high self-healing ability, remodeling capability, antibacterial and radicle scavenging activity, and an excellent multi-sensitive carrier was needed to promote wound healing. For that, Oxidized Cellulose (OC) and gelatin (GLN) are selected to construct a dual drug-loaded Schiff base hydrogel with iron nanoparticle (IONPS) incorporation for the controlled and sustained release of Insulin (INS) and Metfomin (MET), which synergistically promote wound repair. The INS/MET-IONPS-OC/GLN hydrogel drug payload was characterized using FT-IR, XRD, DLS, ZETA, TG, FE-SEM, TEM, and VSM analysis. The high drug loading and encapsulation efficiency were 93.20 % and 98.8 % for INS and 90.2 % and 95.1 % for MET, respectively. The temperature-sensitive drug release (92.0 % of INS and 90.0 % of MET) percentage is much better than the pH-sensitive drug release (83.5 % of INS and 80.2 % of MET). Above 90.0 % viability in MTT and apoptosis assay reveals the nontoxic nature of the INS/MET-IONPS-OC/GLN towards L929 normal cell lines. The zone of inhibition value of 12 and 15 mm in gram-negative bacteria reveals the anti-bacterial effect. The antioxidant activity of the carrier shields the cells against reactive oxygen species promotes healing rate ensures by DPPH assay.The cell proliferation and angiogenesis were confirmed by scratch assay on L929 cell lines in diabetic and non-diabetic conditions, showing the healing ability of the INS/MET-IONPS-OC/GLN hydrogel.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"42 ","pages":"Article e01121"},"PeriodicalIF":8.6,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142323701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Review: Two-dimensional nanostructured pristine graphene and heteroatom-doped graphene-based materials for energy conversion and storage devices","authors":"Md Shahjahan Kabir Chowdury ,&nbsp;Ye Ji Park ,&nbsp;Sung Bum Park ,&nbsp;Yong-il Park","doi":"10.1016/j.susmat.2024.e01124","DOIUrl":"10.1016/j.susmat.2024.e01124","url":null,"abstract":"<div><div>With the goal of achieving net zero carbon emissions and the growing scarcity of fossil fuels, significant efforts have been devoted to the development of high-efficiency, low-cost, environmentally friendly, and alternative energy conversion and storage devices. Pristine graphene, consisting of single-atom-thick carbon nanosheets arranged in an sp² hybridized honeycomb lattice, has emerged as a primary building-block material, including a large surface area, mechanical strength, chemical inertness, and superior electric and thermal properties. Since pristine graphene has a band gap of zero, which significantly limits its applications, modifying graphene by incorporating a heteroatom is a highly effective method to enhance its properties. This approach enhances the suitability and potential of heteroatom-doped graphene as an electrode material in energy conversion and storage devices. This review comprehensively describes the current synthesis advancements in pristine graphene, and heteroatom-doped graphene-based electrocatalysts and/or electrode materials for two types of energy conversion: fuel cells, and water splitting, as well as three frontier energy storage devices, namely supercapacitors and lithium-based various types of batteries. To this end, an exploration of the future prospects, opportunities, and challenges pertaining to the application of graphene and its heteroatom-doped graphene in energy conversion and storage devices is anticipated. This comprehensive review article aims to pave the way for novel advancements and practical utilization of heteroatom-doped graphene-based materials in various domains.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"42 ","pages":"Article e01124"},"PeriodicalIF":8.6,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142323703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cationic effect study in acetate-based ionic liquids/ZIF-8 composites for CO2 sorption","authors":"Tiago J. Ferreira ,&nbsp;Catarina Cabral ,&nbsp;Thiago O. Carvalho ,&nbsp;Joana Pais ,&nbsp;Laura M. Esteves ,&nbsp;Ludmila P.C. Silva ,&nbsp;Patrícia M. Reis ,&nbsp;José M.S.S. Esperança ,&nbsp;Isabel A.A.C. Esteves","doi":"10.1016/j.susmat.2024.e01122","DOIUrl":"10.1016/j.susmat.2024.e01122","url":null,"abstract":"<div><div>Several strategies can be considered for the mitigation of carbon dioxide (CO₂) emissions to the atmosphere, and among them is its post-combustion capture/separation from flue gas emitted from coal-fired power plants. In this work, six imidazolium, ammonium- and DABCO-based ionic liquids (ILs) containing the acetate anion were used to impregnate the metal-organic framework (MOF) ZIF-8. The cationic effect was studied to determine how the different cationic families and side alkyl chain size influence the gas sorption performance of the produced IL@MOF composites. The combination of different characterization techniques confirmed IL impregnation, and that the composite materials were microporous and crystalline. Single-component CO₂ and nitrogen (N₂) sorption-desorption equilibrium measurements were performed at 303 K for ZIF-8 and the IL@ZIF-8 materials. At the low-pressure regime (0–1 bar), synergy was observed for the imidazolium-based composites, especially for the one with the long-side alkyl chain. The ideal CO₂/N₂ selectivity was calculated for post-combustion composition, and, at 1 bar, [C₁₀MIM][Ac]@ZIF-8 was over four times more selective than ZIF-8, while the selectivity of [C₂MIM][Ac]@ZIF-8 at this pressure almost tripled when compared to the MOF. A chemical reaction between CO₂ and the imidazolium ILs explained the results.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"42 ","pages":"Article e01122"},"PeriodicalIF":8.6,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142327392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sodium thiosulfate modified graphitic carbon nitride for enhancing the photocatalytic production of aldehydes","authors":"M. Alejandra Quintana,&nbsp;Julia Aguirre,&nbsp;M. Ángeles Martín-Lara,&nbsp;Mónica Calero,&nbsp;Mario J. Muñoz-Batista,&nbsp;Rafael R. Solís","doi":"10.1016/j.susmat.2024.e01123","DOIUrl":"10.1016/j.susmat.2024.e01123","url":null,"abstract":"<div><div>The oxidation of alcohols to aldehydes is one of the most relevant reactions in organic chemistry. The currently implemented methods based on expensive noble metallic catalysts, toxic solvents, and high temperature and pressure conditions have released the seek for softer and cheaper alternatives such as photocatalysis. In this sense, graphitic carbon nitride has been modified with sodium thiosulfate as a source of S and Na⁺ incorporation in the structure, aimed at enhancing the photocatalytic performance on the oxidation of alcohols to aldehydes, i.e. cinnamaldehyde, benzaldehyde, and vanillin in aqueous solution. Three g-C₃N₄ samples synthesized from different precursors, i.e. melamine, thiourea, and urea, were treated with sodium thiosulfate. Urea led to the g-C₃N₄ with the highest mesoporosity (surface area, 69 m² g⁻¹) and photocatalytic activity. The modification with 5 % (wt.) of Na₂S₂O₃ enhanced the pseudo-first order rate constant of cinnamyl alcohol oxidation from 0.265 h⁻¹ (bare sample) to 0.792 h⁻¹ (Na₂S₂O₃-modified). The characterization of the material suggests a better charge separation of the photogenerated charges after S and Na⁺ incorporation in the structure, minimizing the recombination rate of photogenerated charges. The optimum photocatalyst, tested in aqueous solution, was most selective in the production of benzaldehyde (selectivity, &gt;100 %) &gt; cinnamaldehyde (&gt;23 %) &gt; vanillin (∼5 %). The selectivity was considerably boosted under acetonitrile as the solvent medium, raising in the case of cinnamaldehyde the 23 % recorded in water to 51 % in pure acetonitrile. The degradation mechanism suggests a strong influence of the photogenerated holes and the superoxide radical, the latter being more selective in the oxidation of the alcohol.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"42 ","pages":"Article e01123"},"PeriodicalIF":8.6,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2214993724003038/pdfft?md5=3edc3fc330f51d90dfd069a9dae67fbf&pid=1-s2.0-S2214993724003038-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142315341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Deciphering the functions of metal-organic frameworks and their derived composites towards atmospheric water harvesting: A comprehensive review","authors":"Sushant Wakekar,&nbsp;Chinmoy Das","doi":"10.1016/j.susmat.2024.e01120","DOIUrl":"10.1016/j.susmat.2024.e01120","url":null,"abstract":"<div><div>To address water scarcity globally, recently atmospheric water harvesting (AWH) has emerged as an intriguing and sustainable solution. This comprehensive review critically investigates how diversity in MOFs and their composite materials shapes the effectiveness and practicality of AWH technologies. These materials range from pristine MOFs to functionalized MOFs-based composites to attain the sophisticated hydrophilic behavior to perform as water harvesters. The multifaceted effects of MOFs and their composite materials on the kinetics of sorption and condensation, the feasibility of water uptake and release, the overall performance of the materials, the theoretical understanding of water uptake, and various instrumentation techniques have been demonstrated in this comprehensive review. It contributes to the ongoing discourse on sustainable water sourcing by emphasizing the pivotal role of materials diversity in shaping the future of AWH technologies.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"42 ","pages":"Article e01120"},"PeriodicalIF":8.6,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142532030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Maize starch-PVA nanocomposite biodegradable antimicrobial packaging films for enhancement of shelf-life of Agaricus bisporus","authors":"Manpreet Kaur, Shivani Sharma, Anu Kalia, Sukhjeet Kaur Jawandha","doi":"10.1016/j.susmat.2024.e01114","DOIUrl":"https://doi.org/10.1016/j.susmat.2024.e01114","url":null,"abstract":"Nanocomposite antimicrobial packaging can effectively cater to the postharvest losses of button mushrooms. This study aimed for fabrication of novel antimicrobial biodegradable packaging films using a double composite system comprised of nano-clay-essential oil (EO) composite blended with maize starch (MS) /Polyvinyl alcohol (PVA) polymers which was plasticized with glycerol. The results confirmed superior water barrier properties with the lowest film solubility (16.52 %) and water holding capacity (13.55 %) in MS+ PVA+ Nano-bentonite-basil EO blend film. The surface morphology of this blend film appeared smooth, was thermally stable with the lowest mass loss (97.92 %), and exhibited the highest tensile strength (182.15 Kg/cm) which makes it suitable for food packaging applications. Furthermore, all the prepared films were fully degraded in the soil after 147 days except the control cling film. The addition of EOs enhanced the antimicrobial activity of starch blend films with the highest inhibition against Gram-positive microorganisms ( and ). Packaging of freshly harvested button mushrooms with nanocomposite blend film enhanced the shelf-life up-to 14 days of storage under refrigerated conditions (4 °C) with the lowest physiological weight loss (4.69 %) and highest firmness (1.5 Kg F). Nutritional qualities and ROS-mitigating enzymatic activity of mushroom fruiting bodies were also maintained through packaging. This innovative nanocomposite packaging films could provide a green, environment-friendly, and antimicrobial system to combat the shorter shelf life of button mushrooms.","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"31 1","pages":""},"PeriodicalIF":9.6,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142249284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Constructing novel metal-free HCOF-Ph@g-C3N4 heterojunctions through molecular expansion to enhance photogenerated carrier involved molecular oxygen activation and photocatalytic hydrogen evolution","authors":"Qingmei Tang, Qingrong Cheng, Zhiquan Pan","doi":"10.1016/j.susmat.2024.e01115","DOIUrl":"https://doi.org/10.1016/j.susmat.2024.e01115","url":null,"abstract":"Modification of covalent organic frameworks (COFs) have exceptional stability as well as tunable structures is the key to efficient photocatalysts. In this study, hyper-crosslinked COF-Ph was constructed with g-CN to obtain a novel HCOF-Ph@g-CN heterojunction, and the lamellar mesoporous of g-CN was successfully embedded into the pores of 3D HCOF-Ph. The synthetic strategy greatly enhanced the photocatalytic properties and molecular oxygen activation capability of the catalyst. 10 mg of HCOF-Ph@g-CN heterojunction could completely degrade 30 mg/L of tetracycline (TC) within 14 min, and the rate of hydrogen generation reached 9214.69 μmol g h. The active species in this process of photocatalysis were verified through tests with free radical trapping and ESR spectra. In addition, the molecular oxygen activation capacity of heterojunction interface and the yield of superoxide radicals were examined by 3,3′,5,5′-tetramethylbenzidine (TMB) oxidation and degradation of nitrotetrazolium nlue chloride (NBT) experiments, respectively. We found that the molecular expansion strategy can change molecule energy band structure to improve absorption of sunlight, and the efficient segregation of the photogenerated charge were ensured by the complementary energy band structure between g-CN and HCOF-Ph. This study created an efficient molecular expansion method for the synthesis of COF-based catalysts with potential uses in the energy and environmental fields.","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"46 1","pages":""},"PeriodicalIF":9.6,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142249286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of stress distribution in carbon-based nanoporous electrode by three-dimensional nanostructural reconstruction","authors":"Kwang Ho Ahn, Jae-Bum Pyo, Hyunggwi Song, Taek-Soo Kim","doi":"10.1016/j.susmat.2024.e01112","DOIUrl":"https://doi.org/10.1016/j.susmat.2024.e01112","url":null,"abstract":"The present study employs advanced three-dimensional(3D) nanostructural reconstruction to evaluate stress distribution in carbon-based nanoporous electrodes. It highlights the critical role of internal microstructure in determining electrode performance. Detailed cross-sectional images are captured and analyzed using focused ion beam scanning electron microscopy (FIB-SEM) to construct accurate three-dimensional models of the internal porous architecture. The mean pore size of solution-based electrodes is quantified at 30 nm, compared to 110 nm in aerosol-based electrodes, through 3D model construction. Mechanical testing revealed significant discrepancies in the properties of the electrodes. The solution-based electrodes exhibited a Young's modulus of 364 MPa, an elongation at break of 2.44 %, and a strength of 4.01 MPa. In contrast, the aerosol-based electrodes demonstrated lower values, with a Young's modulus of 173 MPa, an elongation at break of 0.9 %, and a strength of 1.11 MPa, respectively. These mechanical differences are linked to the density and uniformity of the porous structures, where solution-based electrodes exhibited reduced high-stress concentrations. The 3D models provided insights into the variance in stress distribution directly correlating to the porosity and structural integrity influenced by the electrode fabrication technique. These results underscore the utility of 3D nanostructural analysis in optimizing the design of nanoporous electrodes, facilitating enhanced performance in energy storage and conversion devices.","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"3 1","pages":""},"PeriodicalIF":9.6,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142249287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}