Cellulose最新文献

{"title":"Lightweight and sustainable recycled cellulose based hybrid aerogels with enhanced electromagnetic interference shielding","authors":"Bircan Haspulat Taymaz,&nbsp;Volkan Eskizeybek","doi":"10.1007/s10570-025-06471-5","DOIUrl":"10.1007/s10570-025-06471-5","url":null,"abstract":"<div><p>Developing lightweight, sustainable, high porosity, and high-performance electromagnetic interference (EMI) shielding apparatus is essential to diminish electromagnetic contamination for protecting human health and electronic devices. Herein, 1D carbon nanotubes (CNTs) and 2D graphene nanoplatelets (GNPs) functionalized recycled cellulose aerogel (RCA) were fabricated via a facile method by freeze, solvent exchange, and ambient drying. The effect of nanofiller type and quantity on the structural, morphological, electrical, thermal and EMI shielding performance of the RC-based aerogel were investigated. The as-prepared hybrid aerogel displays the maximum 40.2 dB electromagnetic interference shielding efficiency (SE) at 8.92 dB GHz with absorption dominant characteristic. CNTs:GNPs nanofillers in recycled cellulose matrix provoked conductivity mismatching and increased interfacial polarization loss. At a density of 0.087 gcm⁻³, CNTs:GNPs; 7:7%wt. doped RCA exhibits a highly specific SE (SSE) value of 461.95 dBcm³g⁻¹ and an absolute SE (SSE/t) value of 2309.29 dBcm²g⁻¹. These results show that the CNTs:GNPs; 7:7%wt. doped RCA can meet practical applications’ lightweight and high-efficiency EMI shielding requirements.</p></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 5","pages":"3335 - 3354"},"PeriodicalIF":4.9,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10570-025-06471-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143784275","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":"Extraction and characterization of a noble cellulose-rich cotton-like convoluted, lightweight and soft fiber from the floral part of the banana plant pseudo stem","authors":"Mohammad Mamunur Rashid,&nbsp;Nafis Abir,&nbsp;Shahidul Islam,&nbsp;Md. Alimur Reza,&nbsp;Ranajit Kumar Nag,&nbsp;Mohammad Irfan Iqbal","doi":"10.1007/s10570-025-06461-7","DOIUrl":"10.1007/s10570-025-06461-7","url":null,"abstract":"<div><p>This research study examined a novel cellulose fiber extracted from the central part of the banana plant. The physical, chemical, and thermal properties, crystallography, and surface morphology analysis were studied to investigate their suitability in textiles and bio-based composite material applications. The physical analysis revealed the mean tensile strength as 81 ± 18.4 MPa, with a 0.643 ± 0.12 GPa tensile modulus and a linear density of 0.14 tex for the obtained fiber. The findings also demonstrate that these fibers possess unique properties such as lower density (1.10 g/cc) and, most particularly, high crimp (4–6 cp/mm). The existence of different basic components was confirmed by Fourier transform infrared spectroscopy analysis. The chemical analysis estimated the cellulose, hemicellulose, and lignin percentages to be 65.92%, 17%, and 10%, respectively. The moisture regain of the fibers was 9.22%. Similar to cotton fibers, these fibers dissolved completely in a 60% H₂SO₄ solution. Thermogravimetric analysis establishes the thermal stability of the fiber up to 270 °C, making it viable for use in composite manufacturing. The crystallinity index of the fiber was 62.71% determined by X-ray diffraction. Scanning electron microscopy reveals the presence of natural convolution commonly found in cotton fiber. The study concludes that banana floral stem fibers could provide a sustainable alternative in various industrial applications, e.g., eco-friendly automotive interiors, sustainable insulation materials, and turning agricultural waste into valuable resources.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 5","pages":"3027 - 3042"},"PeriodicalIF":4.9,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143784267","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":"Enhanced hydrogen and 5-hydroxymethylfurfural (5-HMF) production via photoreforming of cotton cellulose: role of cellulose allomorphs in Pt–g-C3N4–Bi3TiNbO9 catalysis","authors":"Xiang-Tao Xuan,&nbsp;Hui Zhang,&nbsp;Jia-Le Yao,&nbsp;Ya-Ping Miao,&nbsp;Wei Fan,&nbsp;Xiang-Zhi Dong,&nbsp;Chen-Min Dai,&nbsp;Jiao-Jiao Miao","doi":"10.1007/s10570-025-06475-1","DOIUrl":"10.1007/s10570-025-06475-1","url":null,"abstract":"<div><p>Photoreforming cellulose to simultaneously produce 5-hydroxymethylfurfural (5-HMF) and hydrogen represents a promising strategy for harnessing solar energy. However, the development of highly efficient photocatalysts for this reaction remains a challenge, and the influence of cellulose’s crystalline structure on conversion efficiency is not well understood. In this study, a Pt-modified g-C₃N₄–Bi₃TiNbO₉ heterojunction photocatalyst was synthesized to explore the photocatalytic reforming of four crystalline forms of cellulose. The results demonstrate that the crystalline structure of cellulose significantly affects hydrogen and 5-HMF production, with the order of activity being cellulose III &gt; IV &gt; II &gt; I. Among the cellulose types tested, cellulose III exhibited the highest performance, achieving 51.8 μmol g⁻¹ h⁻¹ of hydrogen and 113.4 μmol g⁻¹ h⁻¹ of 5-HMF, surpassing the yields from cellulose I, II, and IV when using the Pt_1.0–g-C₃N₄–Bi₃TiNbO₉(2:1) heterojunction. Additionally, a lower degree of polymerization of cellulose was found to favor the coproduction of hydrogen and 5-HMF, as it enhances the breakdown of cellulose via reactive species. Factors such as cellulose powder size, solution pH, and catalyst-cellulose interactions were also shown to influence the yields. Density functional theory (DFT) calculations revealed an electron migration of 0.019684e between the O 2<i>p</i> and Bi 6<i>p</i> orbitals of Bi₃TiNbO₉(220) and the C 2<i>p</i> and N 2<i>p</i> orbitals of g-C₃N₄, confirming interfacial electron transfer. The calculated adsorption energies followed the trend: cellulose IV (− 1.72 eV) &gt; I (− 1.73 eV) &gt; II (− 1.94 eV) &gt; III (− 2.07 eV), consistent with experimental results, except for cellulose IV.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 5","pages":"3055 - 3075"},"PeriodicalIF":4.9,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143784268","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":"Bacterial cellulose composite modified by tea polyphenols and ultrasmall copper nanoparticles with antimicrobial and antioxidant activities","authors":"Zhan Qu,&nbsp;Miaomiao Wang,&nbsp;Taoyu Liao,&nbsp;Yating Chen,&nbsp;Zhiyao Wang,&nbsp;Yushuo Tan,&nbsp;Liping Du,&nbsp;Wei Chen,&nbsp;Chunsheng Wu,&nbsp;Xueqing Yang","doi":"10.1007/s10570-025-06467-1","DOIUrl":"10.1007/s10570-025-06467-1","url":null,"abstract":"<div><p>The lack of antimicrobial and antioxidative properties limits the practical application of bacterial cellulose (BC) in chronic ulcers, where prolonged inflammation and infection are common. To address this issue, we decorate BC with tea polyphenols (TP) and copper nanoparticles using an in-situ reduction method. Transmission electron microscopy and X-ray photoelectron spectroscopy analyses reveal that ultrasmall copper nanoparticles reduced by TP are evenly deposited on the nanofibers. The deposition of copper nanoparticles, approximately 3 nm in size with a content of 2.05 wt%, does not affect the morphology or crystallinity of BC. The composite exhibits strong antimicrobial activity against <i>Escherichia coli</i>, <i>Staphylococcus aureus</i>, <i>Pseudomonas aeruginosa</i>, and <i>Candida albicans</i>, as demonstrated by growth curves and inhibition zone tests. Radical scavenging experiments indicate significant antioxidative capability, with 90.3% inhibition of DPPH radicals and nearly 100% inhibition of ABTS radicals after 24 h. Furthermore, the composite significantly enhances L929 cell attachment, showing a 1.5-fold increase in cell attachment after 3 h. The migration rates of L929 cells are 95.6% for the composite and 53.8% for BC after 96 h, respectively. Due to these performances, this composite presents a promising new paradigm for chronic wound healing.</p></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 5","pages":"3245 - 3260"},"PeriodicalIF":4.9,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143784263","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":"Correction: High strength, toughness, and wear-resistant photothermal management films assembled from nanocellulose, MXene sediments, and polyvinyl alcohol","authors":"Zhiqiang Shan,&nbsp;Xiaohua Jia,&nbsp;Jin Yang,&nbsp;Zhaofeng Wang,&nbsp;Haojie Song","doi":"10.1007/s10570-025-06454-6","DOIUrl":"10.1007/s10570-025-06454-6","url":null,"abstract":"","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 5","pages":"3373 - 3373"},"PeriodicalIF":4.9,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143784264","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":"A novel immobilization enzymatic system of nanocellulose-based β-glucosidase in O-glycoside bioconversion of phytochemicals","authors":"Jihong Cui,&nbsp;Lina Fu,&nbsp;Quan Zhou,&nbsp;Jiaqi Zhang,&nbsp;Xinlin Zhang,&nbsp;Jie Yang,&nbsp;Yujie Fu","doi":"10.1007/s10570-025-06443-9","DOIUrl":"10.1007/s10570-025-06443-9","url":null,"abstract":"<div><p>The rarely reported nanocellulose micropheres (NCMs) are promising carriers for enzyme immobilization. Herein, the present study successfully prepared an enzyme immobilization system based on modified nanocellulose microspheres with porous structure. The electrostatic attraction and covalent bonding between polydopamine/polyethyleneimine (PDA/PEI) co-modified nanocellulose microspheres (NCMs) and -COOH/-NH₂ residues in the enzyme achieved the immobilization of β-glucosidase (PDA/PEI@NCMs@BGL). PDA/PEI@NCMs@BGL exhibited excellent stability and reusability with 91.41% residual enzyme activity after 5 cycles and converted at least 90.47% of geniposide, polydatin, and genistin at 4 h. This study may lay a foundation for a cost-effective and environmentally friendly immobilized enzyme system based on modified nanocellulose for the bioconversion of phytochemicals.</p></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 5","pages":"3043 - 3054"},"PeriodicalIF":4.9,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143784176","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":"Nature-based flame-retardant finish for cotton fabric using Banana pseudostem saps","authors":"Tarikul Islam,&nbsp;Sm Mahiuddin Rasel,&nbsp;Raktim Roy,&nbsp;Md. Tanvir Hossen,&nbsp;Shahin Hossain,&nbsp;Mahbubur Rahman,&nbsp;Mohashin Kabir,&nbsp;Md. Reazuddin Repon,&nbsp;Sandeep Kumar Maurya,&nbsp;M. Abdul Jalil","doi":"10.1007/s10570-025-06440-y","DOIUrl":"10.1007/s10570-025-06440-y","url":null,"abstract":"<div><p>This study investigated the potential of eco-friendly substances, namely Banana pseudostem sap (BPS) and phytic acid (PA), to enhance the flame-retardant properties of cotton fabric. The process involved applying various concentrations of BPS (100%, 200%, 300% and 400%) to pre-mordanted scoured-bleached cotton fabric. The treated fabrics were then analyzed for vertical flammability and LOI (limiting oxygen index). Results revealed that fabrics treated with a 400% concentration of BPS showed exceptional flame-retardant properties, with an LOI of 27.5%, compared to the control fabric, which had an LOI of 18.3%, representing a significant increase of 1.5 times. In the vertical flammability test, the BPS-treated fabric burned briefly and self-extinguished. In contrast, the control fabric exhibited sustained burning, with the treated fabric burning nearly 5 times slower, propagating at 26.5 mm/min. SEM images showed the deposition of flame-retardant finishes on the fabric surfaces. FTIR and EDX were employed to identify chemical entities in the fabric. Importantly, post-treatment evaluation of tensile strength and breaking elongation indicated no significant changes in the cotton fabrics, reassuring the quality of the fabric. These findings highlighted the potential utility of BPS and phytic acid as effective flame-retardant agents for cotton fabrics, offering promising avenues for sustainable textile manufacturing.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 5","pages":"3483 - 3495"},"PeriodicalIF":4.9,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143784177","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":"Preparation of halogen-free functionalized cyclophosphazenes-based flame retarding cotton fabric via a simple UV-curing method","authors":"Xiaoguang Zhang,&nbsp;Zhe Cui,&nbsp;Tong Wang,&nbsp;Zegang Xu,&nbsp;Mingzhen Mao,&nbsp;Qin Wu,&nbsp;Bozhou Wang,&nbsp;Hansheng Li","doi":"10.1007/s10570-025-06460-8","DOIUrl":"10.1007/s10570-025-06460-8","url":null,"abstract":"<div><p>Cotton fabric is a flammable material, which can quickly cause civilian deaths and property losses during fire emergencies. It is, therefore, of particular interest to develop flame-retardant cotton fabric to meet the safety standards of households and industries. For this purpose, a novel UV-curable flame-retardant finishing, based on functionalized cyclophosphazenes (CCPD) and 2-hydroxyethyl methacrylate phosphate (HMP), is prepared and applied to cotton fabric (to form cotton fabric/CCPD–HMP composite). Subsequently, this presence of CCPD–HMP on the finished cotton fabric surface is confirmed using scanning electron microscopy and thermogravimetric analysis. Additionally, compared to the pristine cotton fabric, an increase in the residual char yield from 16.73 to 37.44 wt% and the limiting oxygen index from 18.5 to 24.5 vol% is indicated for the fabric/CCPD–HMP composite. Moreover, the after-flame time and after-glow time of the cotton fabric/CCPD–HMP composite reduces from 26.1 to 0 s and 60 to 0.5 s in vertical flame tests, respectively. Meanwhile, the cone calorimeter tests show that the total heat release, the peak heat release, and the fire growth rate index of the cotton fabric/CCPD–HMP composite reduce by 11.6%, 38.37%, and 30%, respectively. It is anticipated that the novel flame-retardant finishing and the UV-curing method reported in this study will provide a new research direction for flame-retardant cotton fabric.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 5","pages":"3467 - 3481"},"PeriodicalIF":4.9,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143784247","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":"Iron-cellulose modified clay: a promising low-cost photocatalyst for organic dye removal","authors":"Bouchra Mekidiche,&nbsp;Khadidja Khaldi,&nbsp;Mounir Mekidiche,&nbsp;Mohammed Aissaoui,&nbsp;Djahida Lerari‑Zinai,&nbsp;Abderrahim Choukchou‑Braham,&nbsp;Sanaa El Korso,&nbsp;Chewki Ziani-Cherif,&nbsp;Ilhem Rekkab-Hammoumraoui","doi":"10.1007/s10570-025-06457-3","DOIUrl":"10.1007/s10570-025-06457-3","url":null,"abstract":"<div><p>Environmental contamination by organic pollutants, such as azo dyes, presents a significant challenge, necessitating sustainable and efficient remediation strategies. Cellulose, a renewable biopolymer, offers a promising platform for photocatalysis due to its modifiable structure and environmental compatibility. However, optimizing cellulose-based composites for enhanced photocatalytic activity remains a challenge. This study addresses this by developing a novel, cost-effective catalyst: a cellulose-modified bentonite composite doped with iron (Fe@C/Bt) synthesized via a one-pot ion intercalation-exfoliation method. The catalyst’s structure, surface properties, and iron content were characterized through FTIR, Raman spectroscopy, XRD, and AAS analyses. Surface area measurements were obtained via N₂ adsorption/desorption isotherms, and UV–Vis diffuse reflectance spectroscopy (UV-RD) determined the band gap. The Fe@C/Bt catalyst demonstrated high efficiency in degrading organic azo dyes, achieving 97% degradation of Congo red in 90 min and 98% degradation of Methyl Orange in 30 min, making it highly suitable for environmental remediation applications. A full factorial design further analyzed the influence of various factors on the catalytic process, offering insights into optimizing performance. This research provides valuable guidance for advancing sustainable photocatalytic technologies in wastewater treatment.</p></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 5","pages":"3445 - 3466"},"PeriodicalIF":4.9,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143784234","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":"Perspectives on cellulose nanofibril size measurement using scanning electron microscopy","authors":"Robert Moon,&nbsp;Linda Johnston,&nbsp;Cecilia Land-Hensdal,&nbsp;Warren Batchelor","doi":"10.1007/s10570-025-06458-2","DOIUrl":"10.1007/s10570-025-06458-2","url":null,"abstract":"<div><p>Cellulose nanofibril suspensions present a broad range of particle morphology and dimensions spanning from millimeters to nanometers. As a result, direct imaging and indirect scattering approaches are used to quantify the morphology and dimensions across different length scales. There is a notable gap in detailed size measurement of cellulose nanofibrils produced from the mechanical refining of woody plants, which makes the required characterization for production control, grade specification, product specifications, and compliance with safety/regulatory requirements difficult. The cellulose nanofibril particles produced by mechanical treatment have a morphology that is dominated by a hierarchical branched fibrillar structure, in which a thicker central fibril branches off into thinner fibrillar elements, which may also undergo further branching into even finer fibrillar elements. The large differences in dimensional scales between fibril length (micrometers) to that of fibril width (nanometers) within a given nanofibrillated cellulose object makes it difficult to measure, as well as to identify the relevant features to measure and report. This paper provides a perspective on scanning electron microscopy (SEM) as a method to partially address this issue. SEM imaging offers a reasonable balance between ease of use, measurement time, image quality, and versatility in magnification to enable size characterization and assessment of features across the variable length scales of the hierarchical branching. This paper also provides a summary of useful SEM techniques for CNF size measurements and practical guidelines for sample preparation, fibril diameter measurement, and methods to account for hierarchical branching. Finally, a comprehensive set of guidelines for measurement reporting is given, together with a discussion of future directions.</p></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 5","pages":"2793 - 2810"},"PeriodicalIF":4.9,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10570-025-06458-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143784231","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}