Journal of Luminescence最新文献

{"title":"A multi-spectroscopic, molecular docking and molecular dynamics study on the binding between bovine serum albumin and ethyl-paraben/propyl-paraben","authors":"Shang-Chun Li ,&nbsp;Peng-Fei Wang ,&nbsp;Li-Mei Wang ,&nbsp;Han Xu ,&nbsp;Qing-Bi Zhang","doi":"10.1016/j.jlumin.2025.121417","DOIUrl":"10.1016/j.jlumin.2025.121417","url":null,"abstract":"<div><div>Parabens can cause endocrine-disrupting effects, hepatotoxicity and pulmonary toxicity in human. Serum albumin is crucial for transporting different exogenous and endogenous molecules. However, the transport mechanisms of parabens in body are not fully understood. In this study, ethyl-paraben (EtP) and propyl-paraben (PrP) were selected to investigate the interactions between parabens and bovine serum albumin (BSA) using multi-spectroscopy, molecular docking and molecular dynamics (MD) analysis. The spectroscopic results showed that EtP and PrP spontaneously occupied site I of BSA to form complexes. The quenching mechanism of BSA-PrP system was static quenching, whereas the quenching behavior of BSA-EtP system was a mixed quenching mechanism of dynamic and static quenching. The formation of BSA-EtP complex is mainly driven by hydrophobic interactions, while van der Waals and hydrogen bonding forces were predominant in BSA-PrP interaction. The results of three-dimensional (3D) and circular dichroism (CD) spectroscopy revealed that EtP and PrP caused alternations on the conformational structure of BSA. PrP exerted a more pronounced effect on BSA conformation. Meanwhile, EtP inhibited the esterase-like activity of BSA, while PrP increased the esterase-like activity of BSA. Molecular docking analysis showed some specific amino acid residues and π-electrons on the benzene ring of EtP/PrP were crucial for maintaining the stability of BSA-EtP/PrP complexes. The results of MD study further confirmed that PrP exerted more effects on the structure of BSA, which were consistent with the results of spectral and molecular docking analysis. This study will provide essential insights for understanding the transportation and distribution mechanisms of parabens in body.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"286 ","pages":"Article 121417"},"PeriodicalIF":3.3,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144656188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photoluminescence and scintillation properties of Dy-doped SrY2O4 single crystals","authors":"Yusuke Endo ,&nbsp;Kensei Ichiba ,&nbsp;Daisuke Nakauchi ,&nbsp;Keiichiro Miyazaki ,&nbsp;Kenichi Watanabe ,&nbsp;Takumi Kato ,&nbsp;Noriaki Kawaguchi ,&nbsp;Takayuki Yanagida","doi":"10.1016/j.jlumin.2025.121413","DOIUrl":"10.1016/j.jlumin.2025.121413","url":null,"abstract":"<div><div>Currently, CdWO₄, Tl:CsI, and Pr:Gd₂O₂S are commonly used scintillators for X-ray detectors; however, each has inherent drawbacks in terms of containing harmful Cd, deliquescence, and optical transparency. With the aim of developing new scintillators that solve these issues, Sr(Y_1-<em>x</em>Dy_<em>x</em>)₂O₄ (<em>x</em> = 0.05 %, 0.1 %, 0.5 %, and 1 %) single crystals were synthesized using the floating zone method, and their photoluminescence and scintillation properties were evaluated. Emission peaks corresponding to the 4f–4f transitions of Dy³⁺ were observed under X-ray irradiation. Among the samples, the <em>x</em> = 0.1 % sample exhibited the highest scintillation light yield of 15,000 photons/MeV under γ-ray irradiation, comparable to commercially available CdWO₄ (15,800 photons/MeV). Although the afterglow level requires further improvement, the present results suggest a promising scintillator showing good light yield and high chemical stability without toxic elements.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"286 ","pages":"Article 121413"},"PeriodicalIF":3.3,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144634393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dependence of speckle contrast in laser lighting on laser and phosphor characteristics","authors":"Ole Bjarlin Jensen ,&nbsp;Jian Xu ,&nbsp;Michael Linde Jakobsen","doi":"10.1016/j.jlumin.2025.121415","DOIUrl":"10.1016/j.jlumin.2025.121415","url":null,"abstract":"<div><div>A challenge using lasers for general lighting is the ability of lasers to form speckles. Speckles arise due to the coherence of the laser light. In laser lighting, a blue laser is typically converted to white light through luminescence in a phosphor material. The correct mixing of scattered blue laser light and the yellow light, generated by luminescence, creates the impression of white light. However, elastic scattering of the coherent laser light in phosphor materials causes speckles to appear in the blue part of the generated white light. The presence of speckles affects the uniformity of the light and therefore efforts to reduce the contrast of the speckles are needed. We present a thorough investigation of the influence of different laser and phosphor properties on the degree of speckle contrast in the white light. In this study, we consider objective speckles, observed on a surface, illuminated by the white light. We find that the speckle contrast depends significantly on the coherence properties of the laser as well as on the properties of the phosphor material. These findings are beneficial in order to design low-speckle laser lighting systems for general lighting applications.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"286 ","pages":"Article 121415"},"PeriodicalIF":3.3,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144656189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Perylene-naphthalene systems: Efficient intramolecular and supramolecular electron transfer in water","authors":"Hadeer M. Mostafa ,&nbsp;Ayman A. Abdel-Shafi ,&nbsp;Sherif F. Hammad ,&nbsp;Mohamed E. El-Khouly","doi":"10.1016/j.jlumin.2025.121400","DOIUrl":"10.1016/j.jlumin.2025.121400","url":null,"abstract":"<div><div>This study explores novel perylene (PTCA) – naphthalene (SANS) systems for efficient electron transfer in aqueous medium, utilizing both intramolecular and supramolecular architectures. We synthesized a new covalently linked PTCA-SANS dyad, demonstrating highly efficient intramolecular electron transfer (rate: 1.50 × 10⁹ s⁻¹, efficiency: 0.96) from the electron-donating naphthalene unit (SANS) to the electron-accepting perylene core (PTCA) upon photoexcitation. Furthermore, a novel supramolecular system was designed using cationic perylenediimide derivative (TAIPDI) and anionic SANS. Spectroscopic analyses confirmed stable conjugate formation via π−π stacking and ionic interactions (K = 6.11 × 10³ M⁻¹). Fluorescence lifetime measurements of TAIPDI upon photoexcitation and subsequent titration with SANS indicated efficient supramolecular electron transfer, characterized by a rate of 7.89 × 10⁸ s⁻¹ and an efficiency of 0.80. In comparison, the photoexcitation of SANS followed by titration with TAIPDI yielded exceptionally fast and efficient supramolecular electron transfer, with a rate of 5.26 × 10¹¹ s⁻¹ and an efficiency of 0.99. Electrochemical measurements and molecular orbital calculations both confirmed this electron transfer characteristic. Both systems are easily synthesized, exhibit broad light absorption and good stability, and achieve rapid, efficient electron transfer in water. These properties highlight their potential for diverse optical and photonic applications.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"286 ","pages":"Article 121400"},"PeriodicalIF":3.3,"publicationDate":"2025-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144656272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Critical effects of annealing under carbon atmosphere on the structural and persistent luminescent properties of Zn2TiO4:Cr3+","authors":"Ankit Sharma ,&nbsp;Guanyu Cai ,&nbsp;Bruno Viana ,&nbsp;Suchinder K. Sharma","doi":"10.1016/j.jlumin.2025.121409","DOIUrl":"10.1016/j.jlumin.2025.121409","url":null,"abstract":"<div><div>Persistent luminescence (PersL) emitting materials have garnered significant interest due to their applications in bioimaging, radiation detection, and anticounterfeiting. This study investigates the impact of annealing in a reductive carbon atmosphere on the structural, optical and PersL properties of Cr³⁺-doped Zn₂TiO₄ inverse spinel. X-ray diffraction (XRD) coupled with UV–visible absorption spectra confirmed the preservation of the Zn₂TiO₄ phase. PersL studies after UV (254 nm and 365 nm) and X-rays pre-excitation demonstrated that air-annealed samples exhibit prolonged afterglow due to effective charge trapping, whereas, carbon annealed samples undergo significant PersL quenching, indicating altered defect states and recombination pathways. X-rays excited optical luminescence (XREOL) measurements reveal distinct emission behaviors, with carbon annealing inducing quenching of PersL, suggesting modified trap depth and charge carrier interactions. Strong thermal quenching in air-annealed samples and anti-thermal quenching of the steady state photoluminescence in carbon-atmosphere annealed samples upon excitation at 340 nm is obtained. We anticipate that the Zn and oxygen vacancies dominate the overall luminescence mechanism. This study provides new insights into defect engineering in PersL phosphors, paving the way for optimized luminescent materials for bioimaging, radiation detection, and next-generation phosphor applications.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"286 ","pages":"Article 121409"},"PeriodicalIF":3.3,"publicationDate":"2025-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144632815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ESIPT molecular probe FET: Electric field effect on spectral properties","authors":"Vladimir Tomin,&nbsp;Tomasz Wróblewski","doi":"10.1016/j.jlumin.2025.121410","DOIUrl":"10.1016/j.jlumin.2025.121410","url":null,"abstract":"<div><div>Employed DFT calculations to investigate the electric field effect on the structure, spectral properties, excited-state intramolecular proton transfer (ESIPT) reaction, and dipole moments of 4′-(Diethylamino)-3-hydroxyflavone (FET). FET, a well-known fluorescent 3-hydroxyflavone, exhibits efficient dual fluorescence from its normal and tautomeric forms. Our simulations revealed a significant field effect on the singlet state energies, electronic transition frequencies, and molecular orbital surfaces. FET molecules demonstrate significant polarizability, leading to a ∼50 % increase in the permanent dipole moment in the singlet states.</div><div>The changes in electronic transition frequencies induced by the applied electric field provide a basis for understanding the modulation of spectral characteristics in solvents where the solute interacts with the electric field of the reaction cavity. Furthermore, incorporating intermolecular interactions using the Onsager model allows us to elucidate how solvatochromism and significant inhomogeneous spectral broadening of vibronic spectra may arise in polar solvents due to thermal fluctuations of the electric field.</div><div>Selective fluorescence spectroscopy of FET in acetonitrile reveals a moderate red shift in the normal form's spectrum and a dependence of its intensity on the excitation energy, a phenomenon known as the red-edge excitation effect (REEE), at room temperature. Traditionally, REEE is observed when solutes are in immobilized environments, such as frozen matrices, polymers, or membranes. We attribute the observed REEE pattern to interplay of spectral solutes inhomogemeouty and the unique characteristics of the fast ESIPT reaction.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"286 ","pages":"Article 121410"},"PeriodicalIF":3.3,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144656187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spectroscopic properties of Yb,Er:LaF3 single crystal for 1.5–1.6 μm laser","authors":"Li Shi ,&nbsp;Guangzhu Chen ,&nbsp;Shanming Li ,&nbsp;Chengchun Zhao ,&nbsp;Yin Hang","doi":"10.1016/j.jlumin.2025.121414","DOIUrl":"10.1016/j.jlumin.2025.121414","url":null,"abstract":"<div><div>A Yb³⁺ and Er³⁺ co-doped LaF₃ single crystal was grown and reported for the first time, to the best of our knowledge. The structure and spectral properties were investigated, and Judd-Ofelt (J-O) calculations were performed. The absorption cross-section at 975 nm was calculated to be 0.20 × 10⁻²⁰ cm². Ω₂, Ω₄, and Ω₆ were calculated to be 0.54 × 10⁻²⁰ cm², 0.34 × 10⁻²⁰ cm², and 0.49 × 10⁻²⁰ cm², with which the fluorescence lifetime of Er³⁺:⁴<strong>I</strong>_13/2 was calculated. The measured fluorescence spectral properties were investigated as well. The energy transfer mechanism between Yb³⁺ and Er³⁺ was studied.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"286 ","pages":"Article 121414"},"PeriodicalIF":3.3,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144632814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A novel Ce3+ and Na+ doped KCaPO4 ceramics for optically stimulated luminescence dosimetry","authors":"V. Altunal ,&nbsp;E. Ilbuga ,&nbsp;B. Sakar ,&nbsp;N. Biderci ,&nbsp;V. Guckan ,&nbsp;K. Kurt ,&nbsp;Z. Yegingil","doi":"10.1016/j.jlumin.2025.121412","DOIUrl":"10.1016/j.jlumin.2025.121412","url":null,"abstract":"<div><div>The aim of this work is to evaluate the luminescent and dosimetric properties of newly developed KCaPO₄:Ce_0.1_%,Na_0.1_%. Optically Stimulated Luminescence (OSL) phosphor by conventional high temperature solid-state reaction. We investigated Thermoluminescence (TL), OSL, and radioluminescence (RL) of KCaPO₄:Ce_0.1_%,Na_0.1_%. This new phosphor has a main TL peak at 130 °C (with a heating rate of 3 °C/s) associated with Ce³⁺ emission that is correlated with the obtained OSL signal. The RL emission spectrum of the KCaPO₄:Ce_0.1_%,Na_0.1_% ceramic gives an emission at 385 nm attributed to the 4f⁰ 5d1 →4f¹(²F_5/2) transition. The TL emission spectra of this phosphor gave a strong emission around 750 nm. The relevant dosimetric properties of the blue light (470 nm) stimulated KCaPO₄:Ce_0.1_%,Na_0.1_% comprising the dose response, minimum detectable dose, reproducibility and fading were evaluated for applications in OSL dosimetry. The OSL response of KCaPO₄:Ce_0.1_%,Na_0.1_% is linear as a function of the absorbed dose between 1 and 50 Gy. Fading of ∼5.8% was observed in the first 24 h, probably due to shallow traps, and approached fading of ∼9.0% in a week. This phosphate-based phosphor KCaPO₄ after doping with lanthanide Ce³⁺ and alkali metal Na⁺ are potentially suitable for personal dosimetry, medical dosimetry and environmental monitoring around nuclear sites. The fast luminescence character of Ce³⁺ make this material also a strong candidate for 2D OSL dose mapping.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"286 ","pages":"Article 121412"},"PeriodicalIF":3.3,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144656190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"On the intrinsic defect nature of persistent luminescence in undoped and Eu-doped CaAl2O4","authors":"C.A. García-Valles ,&nbsp;T.M. Piters ,&nbsp;M. Barboza-Flores ,&nbsp;R. Meléndrez ,&nbsp;P. Salas-Castillo ,&nbsp;V. Chernov","doi":"10.1016/j.jlumin.2025.121407","DOIUrl":"10.1016/j.jlumin.2025.121407","url":null,"abstract":"<div><div>In this paper, we present a comparative study of the persistent luminescence or afterglow (AG), photoluminescence (PL) and thermoluminescence (TL) in reduced undoped and Eu-doped CaAl₂O₄, in order to establish the roles played by Eu and the oxygen vacancy in the processes responsible for the persistent luminescence of this material. When illuminated by light with a photon energy between 3.18 and 5.39 eV, the PL intensity gradually increases over hundreds of seconds before reaching a steady level. This phenomenon is known as photo-charging (PC). The AG decays according to the Becquerel law with a characteristic time of tens of seconds. Subsequent heating of the phosphors results in TL, which peaks at about 70 °C and has an activation energy of about 0.65 eV. Although the intensity of PL, AG and TL are significantly higher for the Eu-doped sample than for the un-doped sample, the values of the parameters that govern the PC, TL and AG are very similar for both samples. In particularly the emission spectra of PL, AG, and TL for both samples are very similar in shape, exhibiting a single emission band that peaks at approximately 2.8 eV with a width of 0.3 eV. This implies that the recombination or luminescence centers are intrinsic defects, presumably oxygen vacancies. The PL excitation spectra for the doped and undoped samples exhibit an excitation region around 3.9 eV and one around 4.9 eV. However, the excitation regions for the Eu-doped sample are broader and exhibit additional features indicating the participation of Eu in the absorption of photon energy. The absence of the Eu emission in the PL emission spectra suggest that the excitation energy is transferred from the Eu to the oxygen vacancy. The AG and TL creation spectra for both samples grow monotonously with increasing excitation photon energy and seem unrelated to the PL excitation spectra. This suggests that the role of Eu in enhancing the AG and TL intensity is mainly to facilitate the formation oxygen vacancies.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"286 ","pages":"Article 121407"},"PeriodicalIF":3.3,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144632813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Machine learning analysis and discovery of novel blue-cyan-emitting Na18Ca13Mg5(PO4)18:Eu2+ phosphor","authors":"Zhichao Zhang ,&nbsp;Jun Zhou ,&nbsp;Jintai Wen ,&nbsp;Fangnan Liang ,&nbsp;Fang Zhang ,&nbsp;Qianxiu Liu ,&nbsp;Jifan Hu","doi":"10.1016/j.jlumin.2025.121408","DOIUrl":"10.1016/j.jlumin.2025.121408","url":null,"abstract":"<div><div>Currently, data-driven methodologies for discovering advanced luminescent materials are receiving considerable focus, driven by the potential to expedite material development timelines and provide multi-faceted insights into material properties. This study implements machine learning to develop a predictive model for emission wavelengths in Eu²⁺-activated A^IB^IIPO₄-type phosphors, thereby advancing rational design strategies. Furthermore, the model's performance is rigorously evaluated by synthesizing a novel Na₁₈Ca₁₃Mg₅(PO₄)₁₈:Eu²⁺ phosphor and comparing its emitting wavelength with the value predicted by the model, showing satisfactory agreement. The compound Na₁₈Ca₁₃Mg₅(PO₄)₁₈ exhibits a glaserite-type crystal structure and belongs to the <em>R-3m</em> space group of the Trigonal crystal system. The Eu²⁺-activated Na₁₈Ca₁₃Mg₅(PO₄)₁₈ phosphor demonstrates intense broadband absorption spanning 250–400 nm in the near-ultraviolet region, emitting bright blue-cyan luminescence under 365 nm excitation. The high Ra (93.3) and low correlated color temperature (CCT: 5096 K) values of the as-fabricated w-LED lamp indicate that Na₁₈Ca₁₃Mg₅(PO₄)₁₈:Eu²⁺ can act as a promising blue-cyan-emitting phosphor for full-spectrum healthy lighting applications.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"286 ","pages":"Article 121408"},"PeriodicalIF":3.3,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144614674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}