Materials Today Nano最新文献

{"title":"Influence of reducing agent concentration on properties of flexible microwave absorbing coating containing silver coated FeSiAl powders","authors":"Qiang Wang ,&nbsp;Yi Liu ,&nbsp;Erdun Su ,&nbsp;Xiaolei Su","doi":"10.1016/j.mtnano.2025.100603","DOIUrl":"10.1016/j.mtnano.2025.100603","url":null,"abstract":"<div><div>In this study, silver coated FeSiAl powders (Ag@FeSiAl) with various reducing agent concentrations were synthesized. Then the powders were incorporated with polyurethane (PU) to prepare a flexible microwave absorbing coating with frequency-selective surface (FSS) structure. TEM analysis revealed that silver nanoparticles were uniformly distributed within the FeSiAl matrix with high crystallinity. SEM demonstrated that as the reducing agent concentration increased, the amount of silver particles on the powders surface grew, then agglomeration and free silver emerged at higher concentrations. XPS spectra confirmed the metallic state of silver and carbon functionalization, linking elemental composition to structural characteristics. Particle size distribution initially widened and then narrowed with increasing concentrations, leading to an initial increase and subsequent decrease in average particle size. Coating thickness and reducing agent concentration were shown to affect absorption properties significantly. At 8 g/L, the coating achieved a maximum reflection loss of −40.90 dB, while the effective absorption bandwidth reached 2.91 GHz at 10 g/L. Excessively high concentrations caused poor impedance matching as well as reducing performance. FSS design helps to enhance the absorption performance, achieving a 3.69 GHz bandwidth with a absorbing bandwidth of 8.71–12.4 GHz. Electric and magnetic field distributions provided insight into the interplay of FSS structural parameters, illustrating their impact on absorption behavior.</div></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"29 ","pages":"Article 100603"},"PeriodicalIF":8.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143552293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Engineered nano-micro fiber networks: PANI nanowires on electrospun Nylon 11 fibers for enhanced triboelectric performance in wearable biomechanical sensing","authors":"Prasad Gajula ,&nbsp;Biswajit Mahanty ,&nbsp;Dong-Weon Lee","doi":"10.1016/j.mtnano.2025.100602","DOIUrl":"10.1016/j.mtnano.2025.100602","url":null,"abstract":"<div><div>Triboelectric loss due to repeated contact electrification remains a significant research challenge in sustainable energy harvesting. A promising approach to improving this issue following the use of conventional insulators is the incorporation of charge trapping, electron trapping, and conductive fillers into polymer matrices. In this study, we developed an advanced hybrid nanogenerator comprising electrospun layers of Nylon-11 modified with polyaniline nanowires (PNYL) and strontium titanate (SrTiO₃)-loaded poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) layers (PTS). Nylon-11 membranes were fabricated via electrospinning and modified with PANI NW via dilute chemical polymerization. The PANI NWs enhance the tribo-positive polarity of Nylon-11 due to their -NH₂ groups while reducing triboelectric loss through their conductivity. Meanwhile, the charge-trapping P(VDF-TrFE) and dielectric SrTiO₃ filler improve the performance of the tribo-negative layer. The optimized PNYL/PTS-HNG achieves high electrical output with an open-circuit voltage (<em>V</em>_<em>OC</em>) of 195 V and short-circuit current (<em>I</em>_<em>SC</em>) of 11 μA, indicating 387 % and 175 % increases over pure NYL/PT-HNG. In addition, it exhibits a mechanical energy conversion efficiency of 66.7 % and excellent mechano-sensitivity (∼58.4 ± 6.6 V kPa⁻¹). These findings highlight the potential of PNYL/PTS-HNG as a high-performance, self-powered wearable sensor for biomechanical monitoring.</div></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"29 ","pages":"Article 100602"},"PeriodicalIF":8.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143552296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surfactant-free colloidal gold nanoparticles: Room temperature synthesis, size control and opportunities for catalysis","authors":"Dionysis Panagopoulos ,&nbsp;Armin Asghari Alamdari ,&nbsp;Jonathan Quinson","doi":"10.1016/j.mtnano.2025.100600","DOIUrl":"10.1016/j.mtnano.2025.100600","url":null,"abstract":"<div><div>Nanomaterials are at the forefront to develop and improve several technologies spanning from catalysis to medicine and sensing. Simple(r) preparation methods of nanomaterials can greatly benefit to fundamental studies and facilitate the development of nanomaterials towards real-life applications. Here, an easily implementable surfactant-free colloidal synthesis, simply achieved in alkaline mixtures of water and mono-alcohol (e.g. ethanol), performed at room temperature in the case of gold nanoparticles, and compatible with the principles of <em>Green Chemistry</em>, is exploited and further developed to easily perform size-effects studies at the nanoscale. Gold nanoparticles in the size range of 5–22 nm are easily prepared from a solution of 0.5 mM HAuCl₄, 2 mM NaOH and 20 v.% ethanol or methanol, by initiating the synthesis in different simple ways: sonochemistry, stirring, manual shaking, using different grades of precursors, using different solvents. The nanomaterials are shown to be suitable model systems to study size effects at the nanoscale, with the example of alcohol electrocatalytic oxidations performed in alkaline media.</div></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"29 ","pages":"Article 100600"},"PeriodicalIF":8.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143508629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Breathable, durable, and ultrathin ionogel fiber sensors for strain and temperature sensing based on TPU and few-layer black phosphorus","authors":"Haidong Zhao ,&nbsp;Xiangfei Xiao ,&nbsp;Shuping Jin ,&nbsp;Xin Jia","doi":"10.1016/j.mtnano.2025.100599","DOIUrl":"10.1016/j.mtnano.2025.100599","url":null,"abstract":"<div><div>Conductive ionogels are emerging materials for next-generation sensing systems in flexible electronics. However, fabricating conductive ionogels with the ideal combination of stretchability, breathability, comfort, and multi-sensing capabilities remains a significant challenge. In this study, we developed fibrous films of an ionogel-based nanofiber composite incorporating ionic liquid (IL), polyurethane (TPU), and few-layer black phosphorus (BP) using electrospinning. The synergistic effects of dipole-dipole interactions and physical entanglement in these nanofiber films resulted in high tensile strength (16.91 MPa), strong elasticity, and excellent air permeability (200.60 g m⁻², 24 h). The incorporation of BP significantly enhanced the sensitivity of the films, as indicated by the increase in gauge factor (GF) from 1.37 to 3.87. Furthermore, these films demonstrated excellent sensing stability and efficient temperature sensing, attributed to the negative temperature coefficient of IL. These properties enable the films to accurately detect human activities under ambient conditions, offering promising applications in flexible smart electronics.</div></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"29 ","pages":"Article 100599"},"PeriodicalIF":8.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143552748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Constructing PAM/PEG electromagnetic shielding hydrogels based on MWCNTs@TiO2","authors":"Teng Zhou ,&nbsp;Daohai Zhang ,&nbsp;Kunlan Diao ,&nbsp;Jiajia Du ,&nbsp;Yupeng Hu ,&nbsp;Zhi Lei ,&nbsp;Dongju Liu ,&nbsp;Shan Liu ,&nbsp;Shuhao Qin","doi":"10.1016/j.mtnano.2025.100606","DOIUrl":"10.1016/j.mtnano.2025.100606","url":null,"abstract":"<div><div>With the widespread popularity of digital technology, electromagnetic interference(EMI) has become a new type of pollution that endangers electronic equipment and biological systems. In this paper, MWCNTs@TiO₂ composite materials were prepared by the hydrothermal synthesis method and then added into the three dimensional framework constructed by PAM (polyacrylamide) and PEG (polyethylene glycol) to obtain hydrogels with EMI functionality. It was found that in the M@T/PAM-4 (MWCNTs@TiO₂/PAM-4) hydrogel, due to the fact that TiO₂ particles were loaded on the surface of MWCNTs, its cross section presented a granular shape. As the content of MWCNTs increased, the EMI SE_T of the hydrogel increased, with the M@T/PAM-4 hydrogel reaching 29 dB. The electrical conductivity and mechanical properties also increased accordingly. Compared with the pure PAM hydrogel, they were respectively improved by 626 % and 24.5 %, which was attributed to the formation of a conductive network by MWCNTs and the enhancement of interfacial polarization, etc. Meanwhile, the water retention rate of the M@T/PAM-4 hydrogel could still reach 34.1 % after 8 h. Moreover, it also had a relatively high water content of 69.08 %. Therefore, This improves the application value and development prospects of the hydrogel in fields such as Electromagnetic (EM) shielding.</div></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"29 ","pages":"Article 100606"},"PeriodicalIF":8.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143562356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A novel flexible non-enzymatic composite-metal glucose detection sensor in sweat based on platinum in situ plating of liquid metal","authors":"Yang Wang ,&nbsp;Junhua Zheng ,&nbsp;Yinji Ma ,&nbsp;Min Li ,&nbsp;Shuo Zhang ,&nbsp;Yanan Lu ,&nbsp;Qingyun Wang ,&nbsp;Yuhang Li","doi":"10.1016/j.mtnano.2025.100594","DOIUrl":"10.1016/j.mtnano.2025.100594","url":null,"abstract":"<div><div>Sweat, a readily accessible bodily fluid, is an ideal medium for non-invasive detection and offers valuable physiological parameters for clinical diagnostics and health monitoring. Monitoring glucose levels in sweat is particularly significant for the diagnosis and management of diabetes, as well as for tracking the health status of diabetic patients and enabling closed-loop treatment strategies. However, challenges arise due to the presence of numerous interfering ions that complicate glucose monitoring in sweat. Additionally, the low concentration of glucose in sweat requires the use of traditional glucose sensors with immobilized enzymes to improve specificity and sensitivity, potentially leading to increased sensor costs. This study presents a novel approach of platinum-plating the surface of liquid metal to create a unique composite metal surface for a sensing electrode to solve these problems. The non-enzymatic glucose composite metal sensor, developed using in-situ platinum plating technology on liquid metal, enables specific recognition of glucose in sweat. This low-cost and flexible manufacturing process for sweat sensors does not require a complex production environment, thus opening up the possibility of inexpensive wearable personalized sweat monitoring.</div></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"29 ","pages":"Article 100594"},"PeriodicalIF":8.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143508628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Silver nanocubes/nano mica platelets flexible nanohybrid substrates modified by zinc oxide quantum dots with synergistic 3D lightning rod effect, and electromagnetic and chemical enhancements for highly sensitive SERS bacterial biosensor","authors":"Ming-Chang Lu ,&nbsp;Chih-Hao Chen ,&nbsp;Yung-Chi Yang,&nbsp;Chih-Wei Chiu","doi":"10.1016/j.mtnano.2025.100601","DOIUrl":"10.1016/j.mtnano.2025.100601","url":null,"abstract":"<div><div>This study utilized a polyol-mediated synthesis method to prepare silver nanocubes (AgNCs) of different sizes. Subsequently, the AgNCs were stably adsorbed onto the surfaces of nano mica platelets (NMPs) via one-step synthesis to form AgNC/NMP nanohybrid surface-enhanced Raman spectroscopy (SERS) substrates with a three-dimensional (3D) lightning rod effect. The NMPs (thickness: 1–3 nm; length and width: approximately 300 nm) had a high surface-area-to-volume ratio and numerous hydroxyl groups on their surfaces, which provided the AgNCs with a good platform for stabilization and growth. When used in surface-enhanced Raman scattering for the biomolecular detection of adenine, the AgNC/NMP nanohybrids exhibited a better limit of detection (LOD) concentration of 10⁻¹⁰ M compared with AgNCs, an enhancement factor (EF) of 4.38 × 10⁹, and a relative standard deviation of 8.52 %. This may be attributed to the hot spots generated along the z-axis by the AgNC/NMP nanohybrids, which created a 3D hot spot effect. The AgNC/NMP nanohybrids also demonstrated an LOD of 10² CFU/mL in the detection of <em>Staphylococcus aureus.</em> To further improve detection sensitivity and biocompatibility, the AgNC/NMP nanohybrids were modified with zinc quantum dots (ZnO QDs) for the synthesis of AgNC/NMP/ZnO QD nanohybrids. When used for the biodetection of adenine, the ZnO-QD-modified nanohybrids exhibited a higher signal intensity compared with the AgNC/NMP nanohybrids, with an increase in the EF to 6.37 × 10⁹. The increase in intensity was attributed to the chemical enhancement effect in SERS. Excellent characteristic signals were also obtained when the AgNC/NMP/ZnO QD nanohybrids were used for the detection of the other three bases of DNA. Finally, the good biocompatibility and large specific surface area of the ZnO QDs enhanced the effects of SERS in bacterial detection, with a further decrease in the LOD to 10 CFU/mL. This also demonstrates that the prepared nanohybrid substrates were highly suitable for use in rapid and sensitive SERS biodetection.</div></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"29 ","pages":"Article 100601"},"PeriodicalIF":8.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143521079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Highly flexible van der Waals thin films from direct hetero-epitaxial growth","authors":"Kuan-Hung Chen ,&nbsp;Cheng-Chih Hsiang ,&nbsp;Yu-Cheng Yeh ,&nbsp;Chia-Yi Wu ,&nbsp;Chang-Hsun Huang ,&nbsp;Wei-Chih Chen ,&nbsp;Yi-Chung Dzeng ,&nbsp;Wen-Yueh Yu ,&nbsp;Chi Chen ,&nbsp;Yi-Chia Chou","doi":"10.1016/j.mtnano.2025.100598","DOIUrl":"10.1016/j.mtnano.2025.100598","url":null,"abstract":"<div><div>We present hetero-epitaxial thin films of a single crystal gallium nitride on fluorophlogopite mica (F-mica) without buffer layers. It employs quasi-van der Waals epitaxy to directly grow GaN thin films on flexible substrates, thus integrating 2D layered materials with conventional semiconductor to achieve highly flexible van der Waals thin films. The nitridation and annealing atmosphere are critical on the direct growth of GaN films on substrates via quasi-van der Waals epitaxy. Specifically, we demonstrate that surface modification of F-mica through annealing under NH₃ atmosphere to form a nanoscale nitride layer, which supports the hetero-epitaxy without buffer layers. Our research highlights that this modified F-mica substrate provides superior nucleation sites and smoother surface characteristics, leading to the growth of GaN thin films with lower dislocation densities and improved structural integrity. This innovative approach not only simplifies the hetero-epitaxial growth process but yields GaN crystals suitable for high-performance flexible electronic and optoelectronic devices. Our findings generalize a substantial pathway in the fabrication of highly flexible semiconductor thin films on 2D materials, leveraging the unique properties of 2D materials and quasi-van der Waals epitaxy to achieve superior material performance. It supports the advancements of next-generation 2D materials formation and flexible devices.</div></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"29 ","pages":"Article 100598"},"PeriodicalIF":8.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143552295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CNT-coupled 2D-MOF composite materials enable tunable bandwidth electromagnetic wave absorption","authors":"Kang Wang ,&nbsp;Qinglin Zhou ,&nbsp;Huachao Liu ,&nbsp;Aming Xie ,&nbsp;Qaisar Abbas Naqvi ,&nbsp;Weiqiang Wang ,&nbsp;Haibo Zeng ,&nbsp;Weijin Li","doi":"10.1016/j.mtnano.2025.100605","DOIUrl":"10.1016/j.mtnano.2025.100605","url":null,"abstract":"<div><div>The rational design of heterogeneous interfaces is considered an effective strategy for developing advanced electromagnetic wave (EMW) absorbers. Herein, a novel inter-dimensional 1D/2D heterostructure was prepared by arranging a typical semiconductive metal-organic framework, CuHT (HT, 4-hydroxybenzenethiol), on conductive networks constructed from different kinds of carbon nanotubes (CNTs) through a one-step in situ polymerization method. The unique heterostructure endowed the designed composite with remarkable EMW absorption performance. In contrast to pristine CuHT nanosheets and carbon nanotubes, the as-prepared CNT/CuHT composite not only displayed excellent reflection loss (RL) performance, but also achieved a broad absorbing bandwidth. The widest bandwidth could be gained up to 6.36 GHz, and the optimal RL was −59.24 dB at 14.04 GHz. Further through precise combination with different types of CNTs, the effective absorption to specific microwave frequency bands can be well optimized. The EMW absorption performance results showed that the MCNT-CuHT and HCNT-CuHT samples could achieve almost full absorption in Ku-band and X-band, respectively. This newly 1D/2D coupled CNT/CuHT concept provided a controllable preparation process, enhanced performance, and an intelligent strategy for electromagnetic wave absorber design and practical applications.</div></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"29 ","pages":"Article 100605"},"PeriodicalIF":8.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143552294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rationally engineered self-assembling enzyme immobilization keratin platform towards multienzymatic cascade reactions","authors":"Lili Wang ,&nbsp;Changfa Sun ,&nbsp;Jia Deng ,&nbsp;Xin Ge ,&nbsp;Xinxu Li ,&nbsp;Bochu Wang ,&nbsp;Shilei Hao","doi":"10.1016/j.mtnano.2025.100607","DOIUrl":"10.1016/j.mtnano.2025.100607","url":null,"abstract":"<div><div>Immobilization of enzymes has the potential to improve enzyme recyclability, stability and activity. However, development of efficient enzyme immobilization, specifically for the multienzyme co-immobilization, remains a challenge. Here, we report a rational design and construction of keratin-based enzyme immobilization platform based on the principle of heterotypic keratin self-assembly. The keratin tags driven from type I keratin of K31were firstly screened through the self-assembly interaction between recombinant K86 (RK86) with different lengths of RK31, that were subsequently used to fuse with various enzymes to connect RK86 microparticles for immobilization. Furthermore, depending on the different lengths of RK31 tags, the spatial position of multienzymes can be accurately regulated, and then modulating the kinetic parameters of the cascade reactions. Our research presents a robust and efficient keratin-based platform for enzyme immobilization. By precisely adjusting the length of the self-assembly keratin tags, we ensured high enzymatic activity and seamless integration of multiple enzymes. The immobilized glucose oxidase (GOX) and horseradish peroxidase (HRP) multienzyme system showed a 33 % increase in V_max and a 22 % reduction in the Michaelis constant K_m compared to free enzymes. This study presents a novel and efficient keratin-based immobilization system that offers a precise method for regulating multienzyme spatial positioning, significantly enhancing the efficiency and reliability of enzyme cascade reactions.</div></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"29 ","pages":"Article 100607"},"PeriodicalIF":8.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143552734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}