{"title":"Selective Turn-On Luminescent Recognition of Perchlorate Ion Using Pyridyl-Benzimidazole–Based Probe","authors":"Sudhanshu Naithani, Nidhi Goswami, Vikas Yadav, Jimmy Mangalam, Tapas Goswami, Sushil Kumar","doi":"10.1002/bio.70087","DOIUrl":"10.1002/bio.70087","url":null,"abstract":"<div>\u0000 \u0000 <p>Anions play a crucial role in various environmental, chemical, and biological processes. Among various anions, the production of perchlorate (ClO<sub>4</sub><sup>−</sup>) ion is expected to rise in upcoming years, and thus, an efficient method for the detection of perchlorate ion is highly desirable. In this effort, a pyridyl-benzimidazole–based luminescent probe (<b>RSB1</b>) containing two N-H donor sites has been synthesized for selective detection of perchlorate ion. Different spectral techniques such as FT-IR, NMR, ESI-mass, UV–Vis, and fluorescence analyses have been used to characterize this probe. High selectivity of <b>RSB1</b> for ClO<sub>4</sub><sup>−</sup> was realized even in presence of strongly interfering species in aqueous-acetonitrile (CH<sub>3</sub>CN-H<sub>2</sub>O; 4:1, <i>v/v</i>) solution. Notably, <b>RSB1</b> served as a “turn-on” perchlorate-responsive probe and exhibited an emission enhancement at 363 nm when excited at 300 nm. The detection limit (LoD) and the binding constant (<i>K</i><sub>b</sub>) values were depicted to be 0.121 μM and 2.6 × 10<sup>5</sup> M<sup>−1</sup>, respectively, while the binding mechanism for <b>RSB1</b>-ClO<sub>4</sub><sup>−</sup> was validated via Job's plot, NMR, and DFT analyses. Furthermore, this probe was successfully employed to trace perchlorate in real samples such as tap water, distilled water, and soil samples with good to excellent recovery values.</p>\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143015153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
LuminescencePub Date : 2025-01-20DOI: 10.1002/bio.70090
Selim Can Dirican, Barış Demirbay
{"title":"A Novel Microfluidic-Based Fluorescence Detection Method Reveals Heavy Atom Effects on Photophysics of Fluorophores With High Triplet Quantum Yield: A Numerical Simulation Study","authors":"Selim Can Dirican, Barış Demirbay","doi":"10.1002/bio.70090","DOIUrl":"10.1002/bio.70090","url":null,"abstract":"<p>The present study introduces the idea of a novel fluorescence-based imaging technique combined with a microfluidic platform that enables a precise control of dark transient state populations of fluorescent probes flowing over a uniform, top flat supergaussian excitation field with a constant flow rate. To demonstrate the imaging capability of the proposed detection method, numerical simulations have been performed by considering laser, microscope and flow parameters of experimental setup together with photophysical model and electronic transition rates of fluorescent dyes. As an output data to be assessed, fluorescence image data is simulated numerically for bromine-free carboxyfluorescein and its brominated derivatives having different numbers of bromine atoms. Based on the magnitudes of applied excitation irradiances and flow rates, which can be manually controlled by user during experiments, the presence of dark state populations can appear as broadening, shifts and decays in normalized fluorescence intensity signals that are computed from simulated fluorescence images. As such changes in signals become more pronounced upon an increase in the degree of bromination, it is elicited that heavy atom effect can be resolved by properly tuning excitation powers of laser and flow rates. Proposed imaging method has potential to provide invaluable means to conventional fluorescence methods and can open up new perspectives in biomedical research.</p>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11745564/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143015213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
LuminescencePub Date : 2025-01-20DOI: 10.1002/bio.70102
A. Bitam, R. Fartas, M. Diaf, H. Boubekri, A. Cheddadi, I. R. Martin
{"title":"Investigation of Er3+-Doped BaF2 Single Crystals for Infrared Emission and Photovoltaic Efficiency Enhancement","authors":"A. Bitam, R. Fartas, M. Diaf, H. Boubekri, A. Cheddadi, I. R. Martin","doi":"10.1002/bio.70102","DOIUrl":"10.1002/bio.70102","url":null,"abstract":"<div>\u0000 \u0000 <p>Er<sup>3+</sup>-doped BaF<sub>2</sub> single crystals were investigated with two primary aims: first, to probe the infrared emissions from the <sup>4</sup>I<sub>11/2</sub> level (around 1.0 μm) under 1500-nm excitation and, second, to use the crystal to enhance the efficiency of silicon-based solar cells through upconversion mechanism. Upon excitation at 1500 nm, the upconversion emission spectrum of the Er<sup>3+</sup>-doped BaF<sub>2</sub> single crystals, recorded in the range of 480–1080 nm, exhibited two well-structured visible bands at 538 and 650 nm, along with a strong near infrared emission at 971 nm. This strong 971-nm emission has an emission cross-section of approximately 0.23 × 10<sup>−20</sup> cm<sup>2</sup>. As with any phenomenon inherent to energy transfer by upconversion, the <sup>4</sup>I<sub>11/2</sub> fluorescence decay exhibits a rise time followed by a long decay of approximately 15 ms and a positive optical gain from the low values of the population inversion coefficient, which could potentially give rise to laser emission from this level. When we place our crystal on a photovoltaic device illuminated by 1500-nm wavelength radiation, we record a photocurrent of 300 μA at an illumination power of 85 mW. This indicates that the Er<sup>3+</sup>-doped BaF<sub>2</sub> crystal is highly suitable for significantly enhancing the efficiency of silicon-based solar cells.</p>\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143059915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Novel Nitrogen Hybrid F− Sensors Based on ESIPT Mechanism Achieving Super Low Detection Limits","authors":"Zeyang Zhu, Zixuan Xu, Xuemei Li, Hui Wang, Xinghui Cao, Shouzhu Li, Linhan Su, Shasha Wu","doi":"10.1002/bio.70098","DOIUrl":"10.1002/bio.70098","url":null,"abstract":"<div>\u0000 \u0000 <p>Two novel nitrogen hybrid fluorescent sensors based on the ESIPT mechanism were successfully synthesized for the detection of fluoride ions (F<sup>−</sup>), and they exhibit high sensitivity and selectivity with a fast response. The detection limits even reach the parts per billion level. With the addition of F<sup>−</sup>, both sensors showed a ratiometric fluorescence change with a large Stokes shift. According to the hydrogen-1 (<sup>1</sup>H) NMR titration, it was confirmed that the desilication reaction occurred between the sensors and F<sup>−</sup>. This work provides guidance for the subsequent development of F<sup>−</sup> fluorescence sensors.</p>\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143015148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
LuminescencePub Date : 2025-01-19DOI: 10.1002/bio.70091
{"title":"Correction to Clustering-Triggered Emission Mechanism of Carboxymethyl β-Cyclodextrin Aqueous Solution and Efficient Recognition of Fe3+ in Mixed Ions","authors":"","doi":"10.1002/bio.70091","DOIUrl":"10.1002/bio.70091","url":null,"abstract":"<p>\u0000 <span>H. Xu</span>, <span>J. Wang</span>, <span>Q. Li</span>, <span>Q. Zhou</span>, “ <span>Clustering-triggered emission mechanism of carboxymethyl <i>β</i>-cyclodextrin aqueous solution and efficient recognition of Fe<sup>3+</sup> in mixed ions</span>,” <i>Luminescence</i> <span>2024</span>, <span>39</span>(<span>8</span>), e4856, https://doi.org/10.1002/bio.4856.\u0000 </p><p>The ranking of affiliations of this paper needs to be adjusted. The correct affiliations ranking should be as follows:</p><p><sup>1</sup>Engineering Research Center for Eco-Dyeingand Finishing of Textiles, Key Laboratory ofAdvanced Textile Materials and ManufacturingTechnology, Ministry of Education, College ofTextile Science and Engineering (InternationalInstitute of Silk), Zhejiang Sci-Tech University, Hangzhou, China</p><p><sup>2</sup>MOE Key Laboratory of MacromolecularSynthesis and Functionalization, Departmentof Polymer Science and Engineering, ZhejiangUniversity, Hangzhou, China</p><p><sup>3</sup>Zhejiang Sci-Tech University Shaoxing-Keqiao Research Institute, Zhejiang ProvincialInnovation Center of Advanced TextileTechnology, Building 7, Cross borderE-commerce Park, Huashe Street, KeqiaoDistrict, Shaoxing City, Zhejiang, China</p><p>Thus, authors' affiliation links should be as follows:</p><p>Haiyan Xu<sup>1,2</sup> | Jun Wang<sup>1</sup> | Qi Li<sup>3</sup> | Qing Zhou<sup>1,2,3</sup></p><p>We apologize for these errors.</p>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bio.70091","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143015215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
LuminescencePub Date : 2025-01-16DOI: 10.1002/bio.70089
Reham E. Kannouma, Amira H. Kamal, Mohamed A. Hammad, Fotouh R. Mansour
{"title":"Fabrication of Highly Fluorescent Nitrogen and Phosphorus Dual-Doped Carbon Dots for Selective Sensing of Rutin","authors":"Reham E. Kannouma, Amira H. Kamal, Mohamed A. Hammad, Fotouh R. Mansour","doi":"10.1002/bio.70089","DOIUrl":"10.1002/bio.70089","url":null,"abstract":"<div>\u0000 \u0000 <p>Based on nitrogen and phosphorus co-doped carbon dots (NP-CDs), a direct, quick, and selective sensing probe for fluorometric detection of rutin has been developed. Utilizing ethylene diamine tetra acetic acid (EDTA) as a carbon and nitrogen source and diammonium hydrogen phosphate (NH<sub>4</sub>)<sub>2</sub>HPO<sub>4</sub> as a nitrogen and phosphorus source. The NP-CDs were synthesized in less than 3 min with a straightforward one-step microwave pyrolysis process with a high quantum yield (63.8%). After being excited at <i>λ</i> = 360 nm, the produced NP-CDs displayed a maximum bluish fluorescence at <i>λ</i><sub>em</sub> of 420 nm. Rutin quenched the fluorescence of the produced NP-CDs based on the inner filter effect and static quenching processes. Along with the International Council of Harmonization (ICH) requirements, the developed spectrofluorometric method was validated. The linearity range was 0.50–35.00 μg/mL of rutin. The developed NP-CDs were successfully employed to determine rutin concentrations in marketed tablets. The developed method is quick, simple, consistent, sensitive, and selective, and it does not require expensive chemicals or specialized instruments. This study paves the path for future application of NP-CD in pharmaceutical analysis.</p>\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143015228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Elevating Red and Near-Infrared Detectivity With CsSnI3 Perovskite Photodetectors Featuring GO and PCBM as Charge Transport Layers","authors":"Pallavi Pandey, Akhilesh Kumar Chaudhary, Sudhanshu Verma","doi":"10.1002/bio.70086","DOIUrl":"10.1002/bio.70086","url":null,"abstract":"<div>\u0000 \u0000 <p>This study focuses on enhancing the performance of photodetector through the utilization of inorganic perovskite material. It emphasizes that the unique properties of perovskite materials contribute to the superior performance of the photodetector. The focus is on the design and enhancement of CsSnI<sub>3</sub>-based photodetector having graphene oxide (GO) and PCBM as charge transport layer, analysing their potential for improved operation. The design process involves a series of optimizations to the device layers, particularly the absorber layer's thickness and defects, which is critical for enhanced efficiency. The designed photodetector exhibits a better responsivity and detectivity in red and near infrared region and maximum responsivity of 0.68 A/W and detectivity of 9 × 10<sup>12</sup> Jones. The SCAPS-1D tool is employed to facilitate the design analysis, enabling the fine-tuning of the device parameters. The findings highlight the effectiveness of perovskite materials in boosting photodetector performance.</p>\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143015217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
LuminescencePub Date : 2025-01-16DOI: 10.1002/bio.70088
Perumal Karthiga, Kethrabalan Chitra, Mohammad Ahmad Wadaan, R. Mythili, Jintae Lee, Devaraj Bharathi
{"title":"Green Synthesis of ZnO Nanoparticles Using Ficus benghalensis for Visible Light–Driven Photocatalytic Degradation of Crystal Violet and Antibacterial and Antibiofilm Activities","authors":"Perumal Karthiga, Kethrabalan Chitra, Mohammad Ahmad Wadaan, R. Mythili, Jintae Lee, Devaraj Bharathi","doi":"10.1002/bio.70088","DOIUrl":"10.1002/bio.70088","url":null,"abstract":"<div>\u0000 \u0000 <p>Crystal Violet (CV) is a vibrant and harmful dye known for its toxicity to aquatic life and potential carcinogenic effects on humans. This study explores the removal of CV through photocatalysis driven by visible light, as well as examining the antibacterial and antibiofilm characteristics of zinc oxide nanoparticles (ZnO NPs) synthesized from the aerial roots of <i>Ficus benghalensis</i>. Various characterization techniques were employed to confirm the optical properties, crystal lattices, and morphology of ZnO NPs. TEM images showed that the ZnO NPs had a spherical shape, with an average size of 40 to 80 nm. The photocatalytic analysis revealed that the synthesized ZnO NPs exhibited substantial activity under visible light, effectively degrading 90.6% of CV in an aqueous solution. The antibacterial activity of synthesized ZnO NPs was evaluated against clinically relevant bacterial strains such as <i>Pseudomonas aeruginosa</i> and <i>Bacillus subtilis</i>, revealing notable zones of inhibition. Moreover, the ZnO NPs exhibited antibiofilm activity of 96.8 ± 0.5% and 98.3 ± 0.3% against <i>P. aeruginosa</i> and <i>Staphylococcus aureus</i>, respectively. In conclusion, this study demonstrated the potential of the synthesized ZnO NPs as a sustainable solution for wastewater treatment and antibacterial applications.</p>\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143015231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
LuminescencePub Date : 2025-01-16DOI: 10.1002/bio.70085
Rasmih M. K. Alshamery, Tarek Ahmed Seaf Elnasr, Hajer Hrichi, Mohammed Gamal, Hazim M. Ali, Tamer H. A. Hasanin
{"title":"Norfloxacin Fluorescent Probe for the Assessment of Cefepime in Biological Fluids and Pharmaceutical Formulation; Investigation of the Greenness and Blueness Characteristics","authors":"Rasmih M. K. Alshamery, Tarek Ahmed Seaf Elnasr, Hajer Hrichi, Mohammed Gamal, Hazim M. Ali, Tamer H. A. Hasanin","doi":"10.1002/bio.70085","DOIUrl":"10.1002/bio.70085","url":null,"abstract":"<div>\u0000 \u0000 <p>In the present study, a norfloxacin (NFX) fluorescent probe was tailored for the spectrofluorometric measurement of cefepime (CFP). The proposed approach measured the quenching effect of CFP on the fluorescence intensity of NFX in acetate buffer solution. The obtained results show that CFP strongly quenches the fluorescence of NFX in a static mechanism. Under the optimal conditions, plotting the fluorescence quenching values (∆F) against CFP concentrations resulted in two ranges varying from 0.8 to 28 μg/mL (<i>r</i><sup>2</sup> = 0.9979) and from 40 to 92 μg/mL (<i>r</i><sup>2</sup> = 0.9929). Furthermore, the limits of quantification and detection were 2.0526 and 0.6773 μg/mL, respectively. In terms of intra- and inter-day recorded precisions (<i>n</i> = 5), the % RSD ranged between 0.31% and 0.6% and 0.55% and 1.02%, respectively. Additionally, practicality/applicability and the green feature of the new method were considered by BAGI and AGREE automated approaches. The new spectrofluorometric approach was positively applied for the quantification of CFP in injection powder and spiked biological fluids, including spiked human urine and plasma samples. According to previously published fluorescence methods, the present method is considered the first fluorescence one for the assay of CFP in human biological fluids with accurate and precise results.</p>\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143015236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
LuminescencePub Date : 2025-01-16DOI: 10.1002/bio.70094
Mai A. El-Didamoony, Ehab F. Elkady, Rawda M. Sayed, Hany A. Batakoushy, Eman A. Mostafa
{"title":"Highly Sensitive Spectrofluorimetric and Colorimetric Quantitation of Neomycin Using Nanosilver-Fluorescein Hybrid: A Comprehensive Assessment of Greenness and Blueness","authors":"Mai A. El-Didamoony, Ehab F. Elkady, Rawda M. Sayed, Hany A. Batakoushy, Eman A. Mostafa","doi":"10.1002/bio.70094","DOIUrl":"10.1002/bio.70094","url":null,"abstract":"<div>\u0000 \u0000 <p>Two versatile yet simple methods, colorimetric and spectrofluorimetric, were utilized for the quantitation of nonchromophore neomycin using silver nanoparticles modified with fluorescein. Fluorescein was excited at 485 nm (emission at 515 nm); when it is deposited on the surface of silver nanoparticles, its fluorescence intensity at 515 nm is quenched. Neomycin restores the fluorescence level at 515 nm by displacing fluorescein from nanoparticle binding sites. When neomycin reacts with silver nanoparticles modified with fluorescein, it causes reduction of silver nanoparticles' plasmon resonance surface band at 395 nm and changes of the solution's color from yellow to pale pink. For the spectrofluorimetric and colorimetric techniques, the calibration graphs with a linearity range of 5–45 ng/mL and 0.5–10 μg/mL, respectively. The suggested techniques were used to determine neomycin in neomycin tablets, yielding mean recovery of 99.696 ± 0.764 and 99.925 ± 1.515 for the spectrofluorimetric and colorimetric methods, respectively. The established techniques were validated according to the ICH guidelines. Analytical greenness calculator (AGREE) along with greenness tool for sample preparation (AGREEprep) was used to evaluate how environmentally friendly the sample preparation and analytical process were. In addition, the suggested approaches' practicality is assessed using the Blue Applicability Grade Index (BAGI).</p>\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143015233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}