JCIS open最新文献

{"title":"Pattern selection in radial displacements of a confined aging viscoelastic fluid","authors":"Palak,&nbsp;Vaibhav Raj Singh Parmar,&nbsp;Debasish Saha,&nbsp;Ranjini Bandyopadhyay","doi":"10.1016/j.jciso.2022.100047","DOIUrl":"10.1016/j.jciso.2022.100047","url":null,"abstract":"<div><p>Intricate fluid displacement patterns, arising from the unstable growth of interfacial perturbations, can be driven by fluid viscoelasticity and surface tension. A soft glassy suspension ages, <em>i.e.</em> its mechanical moduli evolve with time, due to the spontaneous formation of suspension microstructures. The shear and time-dependent rheology of an aging suspension can be exploited to generate a wide variety of interfacial patterns during its displacement by a Newtonian fluid. Using video imaging, we report a rich array of interfacial pattern morphologies: dense viscous, dendritic, viscoelastic fracture, flower-shaped, jagged and stable, during the miscible and immiscible displacements of an aging colloidal clay suspension by Newtonian fluids injected into a radial quasi-two-dimensional geometry at different flow rates. We propose a new parameter, the areal ratio, which we define as the fully developed pattern area normalized by the area of the smallest circle enclosing it. We show that the natural logarithms of the areal ratios uniquely identify the distinct pattern morphologies, such that each pattern can be segregated in a three-dimensional phase diagram spanned by the suspension aging time, the displacing fluid flow rate, and interfacial tension. Besides being of fundamental interest, our results are useful in predicting and controlling the growth of interfaces during fluid displacements.</p></div>","PeriodicalId":73541,"journal":{"name":"JCIS open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666934X22000058/pdfft?md5=f09f6a66254fc891120be1763261a151&pid=1-s2.0-S2666934X22000058-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43689617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The preparation of NiCo2O4 nanoboulders and their application in the electrochemical detection of ofloxacin drug","authors":"Nizamuddin Solangi ,&nbsp;Jai Kumar ,&nbsp;Gul Naz ,&nbsp;Razium Ali Soomro","doi":"10.1016/j.jciso.2022.100054","DOIUrl":"10.1016/j.jciso.2022.100054","url":null,"abstract":"<div><p>A sensitive electroactive platform relies directly upon the efficient and conductive interface. This work offers a simple and effective method for synthesizing NiCo₂O₄ using CTAB surfactant, suited for trace-level antibiotic detection. The route realized the controlled growth of tiny NiCo₂O₄ nanoboulders with an exposed interface. A comparative evaluation of the bimetallic nanostructures with their pristine compositional counterparts, i.e., NiO and Co₃O₄, supports its superior electrochemical characteristics based on the synergism of strong redox activity and conductivity from the bimetallic components. The NiCo₂O₄ nanoboulders exhibited strong electrochemical activity when configured as electrode material for detecting ofloxacin (OFL), a common antibiotic. The sensor exhibited excellent working linearity in a low-concentration range of 0.01–5 ​μM with a detection limit of 1 ​× ​10⁻³ ​μM for OFL. The kinetics of the NiCo₂O₄ further supported the electrocatalytic oxidation of OFL to be diffusion controlled with an estimated diffusion coefficient of 2.03310⁻⁶ ​cm² ​s⁻¹. Moreover, the constructed sensor is applicable for detecting OFL from environmental samples, reflecting its workability in complex real-environment.</p></div>","PeriodicalId":73541,"journal":{"name":"JCIS open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666934X22000125/pdfft?md5=a91a742cfcf998d05e89d5e66f6ed042&pid=1-s2.0-S2666934X22000125-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45600770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Inducing the formation of a colloidal albumin carrier of curcumin","authors":"Konstantina Matskou ,&nbsp;Berke Kisaoglan ,&nbsp;Barbara Mavroidi ,&nbsp;Maria Pelecanou ,&nbsp;Maria Zoumpanioti ,&nbsp;Ilias Matis ,&nbsp;Aristotelis Xenakis","doi":"10.1016/j.jciso.2022.100051","DOIUrl":"10.1016/j.jciso.2022.100051","url":null,"abstract":"<div><p>The administration and delivery of pharmaceuticals faces a variety of well-known obstacles that result in limited biocompatibility and bioavailability. Efforts to improve these properties have often employed serum albumin, primarily due to its inherent biocompatibility and its ability to enhance the circulation times of pharmaceuticals. In this work, we have adapted a nanoparticle-formulation protocol, to produce a protein carrier of curcumin with bovine serum albumin. This was achieved by using a near-equimolar protein:curcumin ratio instead of the abundance of curcumin that would be normally used in a nanoparticle formulation. Photometric and quantitative analysis of this carrier showed an increased curcumin content in the produced aqueous solutions following the homogenization of bovine serum albumin (water) and curcumin (dichloromethane) phases. Albumin fluorescence studies indicated curcumin association near a tryptophan residue, without excluding the possibility of additional sites. Circular dichroism provided strong evidence of this association through the induced circular dichroism effect and showed that the secondary structure of bovine serum albumin was effectively maintained. Overall, this work presented a new means of facilitating the association of increased levels of curcumin with bovine serum albumin, which could potentially be used to generate additional non-covalent albumin carriers for pharmaceutical compounds.</p></div>","PeriodicalId":73541,"journal":{"name":"JCIS open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666934X22000095/pdfft?md5=41f79d90df8468b08f9974c45f546ef8&pid=1-s2.0-S2666934X22000095-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47352470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Supporting non-noble metal composite organosilica monolithic foam for efficiently catalytic degradation of aromatic compounds","authors":"Jieli Lyu,&nbsp;Yuezhan Wan,&nbsp;Na Wang,&nbsp;Zetao Song,&nbsp;Zhongshan Liu,&nbsp;Junxia Peng","doi":"10.1016/j.jciso.2021.100041","DOIUrl":"10.1016/j.jciso.2021.100041","url":null,"abstract":"<div><p>The porous monolithic materials supporting non-noble metal nanoparticles that acted as catalysts have recently gained increasing attention due to their robust activity and regenerative ability, resulting in simple chemical progress. It is crucial for the catalytic performance that the monolithic supporters have a hierarchically porous structure while the non-noble metal nanoparticles show a good control of their dimensions and oxidation states. Herein this work reports the composite organosilica monolithic (OSM) foams containing non-noble metal like Cu-, Co-, or Ni-based nanoparticles. As-prepared the supporting non-noble metal nanoparticles organosilica monolithic foams could act as monolithic catalyst, showing the efficiently catalytic performance for the degradation of aromatic compounds. These monolithic catalysts were prepared via amino-functionalization of organosilica monolith with ethylenic groups, followed by supporting non-noble metal nanoparticles through a simple reduction process. The monolithic catalyst involved Cu-based nanoparticles (Cu/OSM) were obtained via reduction of Cu²⁺ using a mixture of NaBH₄ with and without the aid of polyvinylpyrrolidone K 90 (PVP), as denoted by Cu/OSM-N and Cu/OSM-P, respectively. It was demonstrated that the addition of PVP into the system caused the higher Cu content, the better distribution of the smaller Cu-based nanoparticles and a richer Cu(0) nanoparticles. Furthermore Cu/OSM-P exhibited high stability and durable activity, with approximately 95% conversion within 14 successive cycles, for the catalytic reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) with excess NaBH₄ in an aqueous solution. This catalyst also showed a remarkable catalytic performance for the degradation of other organic aromatic dyes like methylene blue (MB), methyl orange (MO), rhodamine B (RhB) and even their mixture. In addition, Co/OSM-P and Ni/OSM-P fabricated with the same method also showed high catalytic performance for reduction of 4-NP. We believe that the strategy developed in this work is very useful for the simple, low-cost, and environmentally friendly preparation of porous composite monolithic catalysts containing non-noble metal nanoparticles.</p></div>","PeriodicalId":73541,"journal":{"name":"JCIS open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666934X21000404/pdfft?md5=607bd35c4c1d19d2319c2fe9f46f81e3&pid=1-s2.0-S2666934X21000404-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"54553299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"3D printable self-propelling sensors for the assessment of water quality via surface tension","authors":"Piyush Kumar ,&nbsp;Abigail Legge ,&nbsp;David A. Gregory ,&nbsp;Andy Nichols ,&nbsp;Henriette Jensen ,&nbsp;Stephen J. Ebbens ,&nbsp;Xiubo Zhao","doi":"10.1016/j.jciso.2022.100044","DOIUrl":"https://doi.org/10.1016/j.jciso.2022.100044","url":null,"abstract":"<div><h3>Hypothesis</h3><p>Water contamination is a serious global challenge and an on-site and out-of-lab method of assessment of contamination level is highly needed. In this study, we report the potential of using printable and biodegradable propelling sensors as indicators of water contamination in sewage wastewater.</p></div><div><h3>Experiments</h3><p>We used reactive 3D inkjet printing technology to fabricate self-propelling sensors which can quickly indicate the lowering of surface tension value caused by sewage contamination, and other surface tension lowering pollutants. The Z-shaped sensors were fabricated, with the dimensions of 2.0 ​mm at the longest side and 0.1 ​mm in thickness, from regenerated silk fibroin which is an environmentally friendly and biodegradable material. Inkjet printing has the advantage of high resolution and precise deposition of materials allowing the fabrication of small millimetre-sized sensors doped with a surface tension modifying polymer which acts as the ‘fuel’ to drive the sensors on the water surface via surface tension gradient.</p></div><div><h3>Findings</h3><p>Our results showed that the sensor's propulsion velocity decay rate is an excellent metric to indicate the presence and approximate level of sewage contamination.</p></div>","PeriodicalId":73541,"journal":{"name":"JCIS open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666934X22000022/pdfft?md5=ac327cc36ba0c6e258a3ff02a781d47d&pid=1-s2.0-S2666934X22000022-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92009300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rheological interpretation of the structural change of LiB cathode slurry during the preparation process","authors":"Yoshiyuki Komoda ,&nbsp;Kaoru Ishibashi ,&nbsp;Kentaro Kuratani ,&nbsp;Ruri Hidema ,&nbsp;Hiroshi Suzuki ,&nbsp;Hironori Kobayashi","doi":"10.1016/j.jciso.2021.100038","DOIUrl":"10.1016/j.jciso.2021.100038","url":null,"abstract":"<div><p>The dispersion behavior of lithium cobalt oxide (LCO) and acetylene black (AB) particles in the preparation process of the cathode slurry of LiB is investigated from the rheological viewpoint. The cathode slurry is considered as the dispersion of coarse LCO particles in the viscoelastic AB slurry. Viscosity as well as loss modulus of the cathode slurry are estimated from those of the AB slurry using and compared the measured results. After forming the AB network structure or When AB content is high enough, LCO particles can enter and destroy the AB network structure. As a result, LCO particles and fragmented AB network structures are homogeneously mixed, exhibiting better discharge performance. Once the cathode slurry is excessively diluted, the LCO particles are excluded from the AB network structure, resulting in low discharge capacity. Over fragmentation using a high-shear device causes the AB network structure into too small segments, which also lowers the battery performance. Viscosity is helpful to understand the entrance of LCO particles into the AB network, and the storage modulus detects the destruction of the AB network structure during the preparation process of cathode slurry.</p></div>","PeriodicalId":73541,"journal":{"name":"JCIS open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666934X21000374/pdfft?md5=525ebca88233e7f85329425e3a680733&pid=1-s2.0-S2666934X21000374-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48860279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effect of particle size on the dynamics of self-electrophoretic Janus micromotors, sputtering distribution, and rectifying voltage","authors":"Shuaishuai Meng ,&nbsp;Yueyue Zhang ,&nbsp;Yaming Liu ,&nbsp;Zhenchao Zhang ,&nbsp;Kunpeng Ma ,&nbsp;Xiaowen Chen ,&nbsp;Qiang Gao ,&nbsp;Xing Ma ,&nbsp;Wei Wang ,&nbsp;Huanhuan Feng","doi":"10.1016/j.jciso.2022.100046","DOIUrl":"10.1016/j.jciso.2022.100046","url":null,"abstract":"<div><p>Micromotors have gained increasing attention in last two decades, due to their controllable self-propulsion maneuverability at micro scales. However, the effect of particle size on micromotors is still vague and interwoven due to the micromotors’ size, polydisperse distribution, and structural variations. Microfluidic technology is used to clarify the phenomenon, due to its precise micro scale fabrication. Herein, we fabricated a H₂O₂-driven self-electrophoretic Janus micromotor and systematically explored the effects of particle size on their dynamics, the sputtering distribution, and the rectifying voltages. Their speeds were found to be inversely proportional to their sizes. When the particle size was fixed, their speeds increased as coating thickness increased until its hemisphere was fully coated, and this critical coating thickness was also proportional to the sizes of the micromotors. As further investigation goes on, we noticed that electrical voltage to rectify micromotor was proportional to its size too. To summarize, our results showed that larger micromotors moved more slowly, required a thicker metal coating to reach full speeds, and needed higher voltages to be rectified. Through all of these investigations, we believed that microfluidic technology is a valuable tool, which can systematically probe micromotors dynamics and clarify our understanding of micromotors behaviors.</p></div>","PeriodicalId":73541,"journal":{"name":"JCIS open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666934X22000046/pdfft?md5=75939f936cf60fe62297e4618d590636&pid=1-s2.0-S2666934X22000046-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44653805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Responsive emulsions with Janus topology constructed by magneto-surfactants and remote control of emulsion stability","authors":"Haixia Zhang ,&nbsp;Lingling Ge ,&nbsp;Rong Guo","doi":"10.1016/j.jciso.2022.100043","DOIUrl":"10.1016/j.jciso.2022.100043","url":null,"abstract":"<div><p>The fluids with well-defined inner structure and intrinsic responsibility are demanding to the maintenance and regulation of normal functions in living systems. Inspired by this, responsive Janus droplets are constructed by small molecules of magneto-surfactants, and the traditional vortex mixing is applied to guarantee large-scale fabrication. Silicone oil (SO) and Vegetable oil (VO) as two immiscible oils are introduced as inner phases of the Janus emulsions. The topology and subsequently the magnetic responsive performance of Janus emulsion is controlled by adjusting the oil composition with various viscosity, the surfactant concentration and the mass ratio of two oils. Moreover, the remote control of the emulsion stability is realized by the external magnetic field, of which the demulsification mechanism is investigated. The anisotropic and responsive droplets with advantages of deformability, encapsulation capability, and biocompatibility would expand the application of emulsions in targeted therapy, drug delivery and magnetic materials science.</p></div>","PeriodicalId":73541,"journal":{"name":"JCIS open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666934X22000010/pdfft?md5=eeeef4442de9824159e01cc2c9a9c73c&pid=1-s2.0-S2666934X22000010-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44322822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"pH and ionic strength triggered destabilization of biocompatible stable water-in-oil-in-water (W/O/W) emulsions","authors":"Marine Protat ,&nbsp;Noémie Bodin-Thomazo ,&nbsp;Frédéric Gobeaux ,&nbsp;Florent Malloggi ,&nbsp;Jean Daillant ,&nbsp;Nadège Pantoustier ,&nbsp;Patrick Perrin ,&nbsp;Patrick Guenoun","doi":"10.1016/j.jciso.2021.100039","DOIUrl":"10.1016/j.jciso.2021.100039","url":null,"abstract":"<div><p>The design of biocompatible multiple emulsions is an important challenge in the field of controlled delivery systems for protecting and delivering compounds encapsulated and protected in the innermost phase. In this paper, we use biocompatible water – Miglyol®812 water-in-oil-in-water (W/O/W) emulsions stabilized by a stimuli-responsive diblock copolymer consisting of poly(dimethylsiloxane) (PDMS) and poly(2-(dimethylamino)ethyl methacrylate) (PDMAEMA) to design an easy-to-process new delivery W/O/W system. Such emulsions are formed in a single emulsification step. They present a high encapsulation yield and are shown to be stable over months. As such, the encapsulation of a hydrophilic dye (Alexa fluor) in the innermost water phase is successfully demonstrated over months. These emulsions are stimulable either by a shift in pH level or in ionic strength. The former destabilizes the multiple emulsion and leads to a simple one while the latter partly maintains the multiple character. Eventually both stimulations are effective in the dye release and molecular mechanisms are proposed for explaining the observed two-stage kinetics of release.</p></div>","PeriodicalId":73541,"journal":{"name":"JCIS open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666934X21000386/pdfft?md5=166dac02ba6543e1e6acfc2bb495fc19&pid=1-s2.0-S2666934X21000386-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44345415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Self-assembly of colloidal superballs under spherical confinement of a drying droplet","authors":"Sarah Schyck ,&nbsp;Janne-Mieke Meijer ,&nbsp;Lucia Baldauf ,&nbsp;Peter Schall ,&nbsp;Andrei V. Petukhov ,&nbsp;Laura Rossi","doi":"10.1016/j.jciso.2021.100037","DOIUrl":"10.1016/j.jciso.2021.100037","url":null,"abstract":"<div><p>Understanding the relationship between colloidal building block shape and self-assembled material structure is important for the development of novel materials by self-assembly. In this regard, colloidal superballs are unique building blocks because their shape can smoothly transition between spherical and cubic. Assembly of colloidal superballs under spherical confinement results in macroscopic clusters with ordered internal structure. By utilizing Small Angle X-Ray Scattering (SAXS), we probe the internal structure of colloidal superball dispersion droplets during confinement. We observe and identify four distinct drying regimes that arise during compression via evaporating droplets, and we track the development of the assembled macrostructure. As the superballs assemble, we found that they arrange into the predicted paracrystalline, rhombohedral C₁-lattice that varies by the constituent superballs’ shape. This provides insights in the behavior between confinement and particle shape that can be applied in the development of new functional materials.</p></div>","PeriodicalId":73541,"journal":{"name":"JCIS open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666934X21000362/pdfft?md5=dfc9b4f1030ac5221d547f03ac2b83e2&pid=1-s2.0-S2666934X21000362-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46396823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}