Materials Chemistry and Physics最新文献

{"title":"Moxifloxacin-loaded Co0.9Zn0.1Fe1.975Dy0.025O4 magnetic nanoparticles coated with alginate and chitosan: Investigating drug release and antibacterial properties","authors":"Leila Rakhsha ,&nbsp;Saeed Hasani ,&nbsp;Amir Seifoddini ,&nbsp;Vahid Ramezani ,&nbsp;Mahdiyeh Khajehkhalili","doi":"10.1016/j.matchemphys.2025.130702","DOIUrl":"10.1016/j.matchemphys.2025.130702","url":null,"abstract":"<div><div>Biopolymer-coated magnetic nanoparticles (MNPs) present a promising avenue for biomedical applications due to their exceptional properties. In this study, Co_0.9Zn_0.1Fe_1.975Dy_0.025O₄ ferrite nanoparticles were synthesized using the co-precipitation method and characterized. The average crystallite size of the MNPs was determined as 38.89 nm. Two distinct systems were created by coating the MNPs with alginate and chitosan, followed by loading them with moxifloxacin. Various analytical techniques confirmed the saturation magnetization values of the MNPs and coated MNPs, as well as the drug loading percentages. The hydrodynamic sizes of the coated MNPs were reported as 401.1 nm for alginate and 192.2 nm for chitosan. UV–Vis spectroscopy was used to determine the amount of moxifloxacin loaded onto the nanoparticles, revealing that the drug loading was 19.64 % for the alginate-coated MNPs and 21.85 % for the chitosan-coated MNPs. An in vitro drug release study unveiled the impact of pH and coating polymer on the release kinetics, with significantly different release rates observed between the two pH conditions. The results indicated that at pH 7.4, the percentage of drug released in 6 h was 97.89 % for the alginate-coated MNPs and 70.36 % for the chitosan-coated MNPs. Conversely, at pH 5.5, the drug release percentages were 48.6 % for the alginate-coated MNPs and 73.33 % for the chitosan-coated MNPs. Moreover, the antibacterial activity of the MNPs against gram-positive and gram-negative bacteria was investigated, demonstrating the enhanced antibacterial efficacy conferred by the alginate and chitosan coatings. This comprehensive analysis underscores the potential of biopolymer-coated MNPs as effective drug delivery systems with tailored release profiles and enhanced antibacterial properties.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"339 ","pages":"Article 130702"},"PeriodicalIF":4.3,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural, physicochemical and dielectric features of Gd3+ substituted Ba–Zn–Y-hexa-ferrites for microwave absorption applications","authors":"Ishra Kanwal ,&nbsp;Muhammad Azhar Khan ,&nbsp;Kanwal Majeed ,&nbsp;Noura Dawas Alkhaldi ,&nbsp;Shagufta Gulbadan ,&nbsp;Norah Algethami ,&nbsp;Zeshan Javed ,&nbsp;Faseeh ur Raheem ,&nbsp;Ghulam Abbas Ashraf","doi":"10.1016/j.matchemphys.2025.130653","DOIUrl":"10.1016/j.matchemphys.2025.130653","url":null,"abstract":"<div><div>Hexa-ferrites have been superior for their spectacular performance in several fields, such as EMI shielding, microwave or radar absorption, and stealth applications. At the same time, this performance is based on minimizing reflection loss, a key feature of hexaferrites. In this work, Gd- substituted Y-type ferrites with chemical composition Ba₂Zn₂Gd_xFe_12-xO₂₂ (0.00 ≤ x ≤ 0.10, with a single step of 0.025) were fabricated using the sol-gel auto ignition technique. All materials were kept at 1150 °C for five and a half hours for sintering. The Gd³⁺ substituted samples were investigated via the XRD technique to study phase development. The obtained XRD patterns confirmed the formation of pure Y-type hexagonal ferrites. Microstructure analysis is done through a scanning electron microscope (SEM). By FTIR spectroscopy in the range 400–4000 cm⁻¹, IR vibrational bands appeared. These bands from 400 to 600 cm⁻¹ were for structural confirmation. Raman spectroscopy was another source of structural investigation in terms of active Raman modes. Variation in Raman spectra with substitution was also observed. The change in surface composition was observed using X-ray photoelectron spectroscopy (XPS). The dielectric parameters, including Real and imaginary permittivity (ε′ and ε''), Loss Tan factor, Complex electric modulus, and AC conductivity, were calculated from 1 MHz to 6 GHz. These parameters showed decreasing behavior with Gadolinium substitution. The Cole-Cole plots showed a single semicircle and revealed the involvement of grain walls for conduction. Due to low values of losses, the Y-Ferrites are employed in hyper-frequency range applications and are applicable as (multi-layer chip inductor) MLCI. The minimum reflection loss is −60.98 dB for sample x = 0.025. As a result, the prepared materials are crucial, such as microwave/radar absorbers and designing EMI shielding materials.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"339 ","pages":"Article 130653"},"PeriodicalIF":4.3,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"K2O effect on structural, hardness, and bioactivity of sodium calcium silicate bioglasses","authors":"Navneet Kaur Mattu ,&nbsp;Priyankar Dey ,&nbsp;K. Singh","doi":"10.1016/j.matchemphys.2025.130719","DOIUrl":"10.1016/j.matchemphys.2025.130719","url":null,"abstract":"<div><div>Bioactive glasses and glass ceramics have been synthesized using various precursors with different processing parameters to enhance and optimize the developed material's bioactive properties. In the present study, the structural, mechanical, and bioactive properties of 43SiO₂–25CaO-(25-x)Na₂O-(x)K₂O–7P₂O₅ (x = 0, 5, 10, and 15 wt%) bioactive glasses, synthesized using a hybrid approach with agro-food waste-derived and conventional sources, were investigated to determine the impact of mixed alkali modification and K₂O substitution. Increased K₂O content enhanced the formation of the carbonated-hydroxyapatite (c-HAp) layer upon in-vitro testing. Interestingly, cell viability assays on human peripheral blood mononuclear cells (PBMC) confirmed non-toxicity at 10–200 μg/ml concentrations and up to 48 h at 100 μg/ml. This work shows that bioglass synthesized using hybrid chemical sources is unique, cost-effective, and non-toxic in a wide range of amounts with better and fast formation of c-HAp. The developed glasses exhibited comparable mechanical properties as reported for bioglasses synthesized using conventional sources.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"339 ","pages":"Article 130719"},"PeriodicalIF":4.3,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"N-halamines functionalized PCL nanofibrous yarns with antimicrobial properties for sutures applications","authors":"Yingfeng Wang ,&nbsp;Ziyi Liao ,&nbsp;Ming Huang ,&nbsp;Kaizhun Li ,&nbsp;Nengyu Pan ,&nbsp;Hao Hou ,&nbsp;Wei Ma ,&nbsp;Maoli Yin","doi":"10.1016/j.matchemphys.2025.130713","DOIUrl":"10.1016/j.matchemphys.2025.130713","url":null,"abstract":"<div><div>Post-surgical site infections (PSSI) pose significant challenges in clinic treatment, and the antibacterial modification of medical materials is an effective strategy to combat these issues. In this work, a monomeric N-halamines (DCDMH) was doped in PCL matrix via electrospinning process, and further processed using a conventional twisting method to yield nanofiber-based yarns. The micro/nano-structure of the PCL-based electrospun nanofibrous yarns (ENYs) enables the effective release of N-halamines and exhibits suitable storage stability after 30 days. The N-halamine modified ENYs effectively inhibited 100 % of <em>E. coli</em> O157:H7, <em>S. aureus</em>, and <em>C. albicans</em> within 1 min, resulting impressive antimicrobial capacities. The effect of N-halamines dosage on the morphology and mechanical properties of fabricated ENYs was assessed. Furthermore, the in vitro degradation, hemocompatibility, and protein adsorption properties of the synthesized nanofibrous yarns were also evaluated. The prepared ENYs with good hemocompatibility and antimicrobial properties, suggesting a novel approach for the development of medical materials, specifically for surgical sutures materials.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"339 ","pages":"Article 130713"},"PeriodicalIF":4.3,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation and performance study of novel Cu / TiBN electronic paste","authors":"Xu Zhou ,&nbsp;Ping Lu ,&nbsp;Suheng Li ,&nbsp;Shuangyu Liu ,&nbsp;Fulong Zhang ,&nbsp;Juan Hong","doi":"10.1016/j.matchemphys.2025.130727","DOIUrl":"10.1016/j.matchemphys.2025.130727","url":null,"abstract":"<div><div>TiBN powder was synthesized using a boronizing sintering method, resulting in a core-shell structure with a soft shell and hard core. This structure exhibits stable electrical conductivity and excellent oxidation resistance. Utilizing this powder, a novel Cu/TiBN electronic paste was prepared. The impact of TiBN content on the resistivity, oxidation resistance, and hardness of the copper-based conductive film was investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM), four-point probe measurements, nanoindentation, and oxidation weight gain methods. The results indicate that with a TiBN nano powder content of 0.75 wt%, the resistivity is 1.025 <span><math><mrow><mo>×</mo></mrow></math></span> 10⁻⁷ Ω m, which is higher than that of pure copper. However, at this concentration, the oxidation resistance, hardness, and elastic modulus of the copper-based conductive film are significantly enhanced. Compared to pure copper, the weight gain due to oxidation decreases by approximately 22 %, while the hardness and elastic modulus increase by about 48 % and 60 %, respectively. The synthesis of TiBN powder provides a novel material choice for the preparation of high-performance copper-based electronic pastes.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"339 ","pages":"Article 130727"},"PeriodicalIF":4.3,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of biomass derived N-C-dots decoration on photocatalytic efficiency of S-g-C3N4/g-C3N4 homojunction","authors":"Permender Singh ,&nbsp;Neeru Rani ,&nbsp;Vasundhara Madaan ,&nbsp;Sandeep Kumar ,&nbsp;Vinita Bhankar ,&nbsp;Parmod Kumar ,&nbsp;Krishan Kumar","doi":"10.1016/j.matchemphys.2025.130707","DOIUrl":"10.1016/j.matchemphys.2025.130707","url":null,"abstract":"<div><div>Herein, ginger-derived N-doped carbon dots (N-C-dots) using pyrolysis method are decorated over in-situ fabricated n/n homojunction i.e., S-g-C₃N₄/g-C₃N₄ (SgCN/gCN) by hydrothermal approach for photocatalytic breakdown of rhodamine B (RhB) dye. The obtained N-C-dots exhibited crystalline nature having quasi spherical particle with sizes in 2.36–8.51 nm range, whereas SgCN/gCN has a layered morphology. The resulting ternary composite N-C-dots/SgCN/gCN demonstrated significantly greater photocatalytic efficacy than the individual components under UV-light. Under optimal circumstances i.e., pH = 3, dye concentration 5 ppm, photocatalyst dosage 0.06 g, N-C-dots/SgCN/gCN displayed excellent photocatalytic degradation of RhB dye (99.68 %) in only 10 min exposure to UV-irradiations. Capture experiments revealed that O₂^•⁻ radical ions are primary reactive components for dye degradation while ^•OH and h⁺ have relatively minor contribution. The findings of capture studies were employed to propose probable photocatalytic dye decomposition route. Additionally, N-C-dots/SgCN/gCN showed excellent stability and good reusability up to 5 cycles with just a small drop in photocatalyst efficiency.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"339 ","pages":"Article 130707"},"PeriodicalIF":4.3,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of high entropy boride in reactive MW-plasma environments: Enhanced reducing capability","authors":"Bria Storr,&nbsp;Shane A. Catledge","doi":"10.1016/j.matchemphys.2025.130712","DOIUrl":"10.1016/j.matchemphys.2025.130712","url":null,"abstract":"<div><div>We investigate the synthesis of the high entropy boride (HEB), MoNbTaVWB₁₀, in a highly reactive environment facilitated by hydrogen feedgas in microwave plasma (MW plasma). Dissociation of molecular hydrogen to form copious amounts of atomic hydrogen allows efficient reduction of the metal oxide precursors with less excess boron needed for HEB formation than if an Ar-rich feedgas is used. This study demonstrates that hydrogen plasma promotes the hexagonal AlB₂-type structure at temperatures as low as 1500C, achieving a predominantly single -phase structure at 1750C. In both environments, hardness and surface topography of the HEBs are measured, highlighting the enhanced effectiveness of the reactive feedgas in the synthesis process. XRD analysis confirms the enhanced reduction efficiency and phase purity facilitated by atomic hydrogen, while SEM/EDX reveals improved elemental uniformity and minimized vanadium sublimation. Compared to argon-rich plasma, hydrogen plasma results in larger grain sizes and reduced microstrain, underscoring its role in optimizing the microstructure and synthesis of HEBs. The findings show the advantages of a reactive synthesis environment for sustainable and efficient metallurgical process, enabling advanced material applications.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"339 ","pages":"Article 130712"},"PeriodicalIF":4.3,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced ciprofloxacin release and antibacterial activity of composite bone cement beads for diabetic pedal osteomyelitis treatment","authors":"Vidyaalakshmi Venkatesan ,&nbsp;Arthi Chandramouli ,&nbsp;Aathira Pradeep ,&nbsp;Anil Kumar Vasudevan ,&nbsp;Vivek Lakshmanan ,&nbsp;Jayakumar Rangasamy","doi":"10.1016/j.matchemphys.2025.130700","DOIUrl":"10.1016/j.matchemphys.2025.130700","url":null,"abstract":"<div><div>Pedal osteomyelitis is an infection of the bone that is common in diabetic patients owing to the poor infection control rate where polymicrobial infections are harboured. The current treatment is complete debridement of the infected area followed intravenous antibiotics which are required in high doses although only a minute fraction reaches the local area. The biomaterials being used for the delivery of antibiotics are PMMA and calcium sulfate cement but shows drawback of non-biodegradable polymer not aiding in bone regeneration. The barrier to using calcium sulfate cement bead is quick resorption and needing a binder to control the elution of the drug in a sustained manner. In view of circumventing these constraints, we prepared a composite bone cement bead (BC) using tetracalcium phosphate, phosphoserine with ciprofloxacin (C) a broad-spectrum antibiotic and gelatin (G) (BCCG) for enhancing bone cement resorption, drug release and antibacterial activity. The prepared bone cement beads were characterized using SEM, FTIR and XRD. <em>In vitro</em> drug release study for 75 days was conducted where BCCG-4°% bead had shown enhanced drug release rate as compared with that of BCCG-2°% and BCC beads. The antibacterial activity of the prepared beads was done against <em>E. coli</em> and <em>S. aureus</em> for 56 days and results showcased that BCCG-4°% group had higher zone of inhibition when compared with BCCG-2°% and BCC beads. The BCC, BCCG-2°% and BCCG-4°% beads were potentially inhibiting the biofilm formation and effectively inhibited bacteria in <em>ex-vivo</em> studies, where there was maximum reduction in bacteria in BCCG-4°% group owing to the higher drug release rate. BC, BCC, BCCG-2°% and BCCG-4°% were biocompatible in rMSC and they adhered to the bead surface showing its high viability and attachment. Thus, the developed antibacterial bone cement can be a novel utilisable outlook for the therapy of pedal osteomyelitis.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"339 ","pages":"Article 130700"},"PeriodicalIF":4.3,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design and performance of foamed ceramics with ultra–low permittivity and thermal conductivity","authors":"Xiangming Li ,&nbsp;Xianwen Li ,&nbsp;Junlong Zhang ,&nbsp;Qinghong Meng ,&nbsp;Wanjun Yu ,&nbsp;Zuju Ma ,&nbsp;Junting Liu","doi":"10.1016/j.matchemphys.2025.130720","DOIUrl":"10.1016/j.matchemphys.2025.130720","url":null,"abstract":"<div><div>To meet the requirements for materials with ultra–low permittivity and thermal conductivity in cutting–edge fields, the feasibility of preparing foamed ceramics (FCs) with high porosity by high–temperature sintering using desalinated sea sand as the primary raw material and aluminium nitride (AlN) as a blowing agent was investigated. The preparation of FCs is achieved through the blowing up of the molten ceramic body by the oxidation–derived nitrogen from AlN during sintering. The FCs sintered at 1100 °C from the material system of 11 wt% Na₂CO₃ and 3 wt% AlN exhibit a high porosity of 94.6 %, a low density of 0.138 g/cm³, and a compressive strength of 0.24 MPa. The FCs sintered at 1050 °C from the material system of 11 wt% Na₂CO₃, 3 wt% AlN and 0.5 wt% MnO₂ have a high porosity of 94.2 %, a low density of 0.149 g/cm³, and a compressive strength of 0.35 MPa. The high porosity, independent and uniform pore structure, coupled with a simple phase composition, enables the FCs to exhibit a thermal conductivity as low as 0.043–0.051 W/(m·K) in the temperature range of 10–80 °C and a mean permittivity as low as (1.61–1.64) + j(0.0031–0.0037) in the X–band, resulting in FCs with excellent thermal insulation and microwave penetration.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"339 ","pages":"Article 130720"},"PeriodicalIF":4.3,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143637229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"From bricks to walls: Crafting vanadium trioxide complex structures for enhanced lithium-ion battery performance","authors":"Ranran Jiao ,&nbsp;Hongyan Zhou ,&nbsp;Suyuan Zeng","doi":"10.1016/j.matchemphys.2025.130698","DOIUrl":"10.1016/j.matchemphys.2025.130698","url":null,"abstract":"<div><div>Hollow structures with large surface areas are recognized as promising electrode materials for lithium-ion batteries. Inspired by the construction of brick walls, we have developed a novel, low-melting-point salt-assisted strategy for the assembly of V₂O₃-coated CoO/Co complex hollow nanocubes. The shell thickness of these hollow nanocubes can be precisely controlled by adjusting the quantities of raw materials. An optimal V₂O₃ shell thickness enhances reaction reversibility and stability, while minimizing overpotential due to the accelerated reaction rate at the electrode interface. This unique structure not only withstands volume expansion and extraction but also significantly improves the energy density and reduces resistance during cycling. These attributes demonstrate exceptional lithium storage properties, making them ideal anode materials for lithium-ion batteries.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"339 ","pages":"Article 130698"},"PeriodicalIF":4.3,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}