Magnetochemistry
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2026
·Vol. 12
·期 4
·46
·
IF 2.8
Zhuoqian Xie,Chenjun Xu,Yunye Shi,Nanxi Lin,Qisheng Tu
Birefringence, arising from the low-symmetry structure in orthorhombic LaFeO3, limits the observation and utilization of magneto-optical effects. In this study, the pure-phase perovskite-typed La1−xCexFe1−xTixO3/SiO2thin films were successfully fabricated via radio-frequency magnetron sputtering, where the co-doping of Ce3+and Ti4+ions effectively induced a structure transition from orthorhombic to a highly symmetric cubic phase, eliminating birefringence effect and thus reducing optical transmission loss. At the same time, the doped Ce3+ions also effectively enhanced the magnetic and magneto-optical effects of the system due to their strong spin coupling effect and superexchange interaction with Fe3+ions. The results show that the cubic-phase La0.5Ce0.5Fe0.5Ti0.5O3/SiO2thin film exhibits excellent magnetic and magneto-optical performance. Their saturation magnetization reaches 180 emu/cm3with an in-plane easy magnetic axis. And their magnetic circular dichroic ellipticity |ψF| reaches 3054 degrees/cm.
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ANALYTICAL CHEMISTRY
·
2025
·
IF 6.7
Tuotuo Zhang,Bin Li,Alain Wuethrich,Huixing Liu,Quan Zhou,Zhuoran Hu,Huiling Wang,Matt Trau,Feng Bao,Jian Li,Yao Sun,Junrong Li
An early and accurate risk assessment of coronary artery disease (CAD) is crucial for implementing effective health management strategies before the disease progresses to severe or life-threatening conditions such as myocardial infarction (MI). To this end, we present a surface-enhanced Raman scattering (SERS) platform designed to simultaneously profile six circulating biomarkers in human serum, establishing a cardiac signature for precise CAD evaluation. This SERS platform integrates a gold microelectrode and a cubic core–satellite nanostructure as key components to achieve highly sensitive target detection with a limit of detection as low as 7.4 fg/mL for LDHB. By using Raman reporters as the natural bridges between the core and satellites, numerous “hot spots” were created within the nanogaps that significantly amplify the SERS signal output. Additionally, this SERS platform utilizes electrohydrodynamics (EHD) to selectively remove nonspecific binding events, further enhancing cardiac biomarker detection specificity. Notably, the acquired cardiac signature effectively distinguishes CAD and MI from other cardiac-related disorders (CRDs) in clinical samples, highlighting its potential for clinical applications.
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JOURNAL OF NUCLEAR MATERIALS
·
2025
·
IF 3.2
Liang Cai,Shurui Shang,Haifeng Xue,Xin Hu,Qiang Qi,Guangna Luo,Yingchun Zhang
Li 2 TiO 3 -Li 4 SiO 4 biphasic ceramic has attracted increasing attention because of its unique advantages for tritium breeding in fusion reaction. To overcome the critical limitations of conventional Li 2 TiO 3 -Li 4 SiO 4 pebbles, particularly their inadequate mechanical strength and low packing density, this work developed high-performance Li 2 TiO 3 -Li 4 SiO 4 cubic units via digital light processing (DLP). The purge gas flow behavior in stacked cubic unit structure was studied by Computational Fluid Dynamics (CFD) method to evaluate its structural characteristics. The photosensitivity and rheological properties of precursor suspension were studied to verify the printing feasibility. Solid loading and sintering process were optimized to yield the defect-free Li 2 TiO 3 -Li 4 SiO 4 cubic unit. The results show that the purge gas had periodic velocity distribution and extremely low pressure drop in the stacked cubic unit structure. Li 2 TiO 3 -Li 2 SiO 3 -Li 2 CO 3 ceramic suspension possessed suitable photosensitivity and thixotropy, and its optimal solid loading was 40 vol%. After sintering at 1100 °C, the Li 2 TiO 3 -Li 4 SiO 4 cubic unit with high relative density (92.8 %TD), high crush load (2000.3 N) and favorable open-pore structure can be prepared. Comparative analyses of Li-based cubic units indicate that the Li 2 TiO 3 -Li 4 SiO 4 cubic unit not only addresses the limitations of single-phase variants but also demonstrates superior intrinsic characteristics, including excellent mechanical& thermomechanical properties and distinct hydrogen isotope release behavior. This work proves the feasibility of Li 2 TiO 3 -Li 4 SiO 4 biphasic strategy and potential of Li 2 TiO 3 -Li 4 SiO 4 cubic units for the future tritium breeding design.
研究领域:
材料科学
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核工程
·
增材制造
·
陶瓷材料
·
聚变能源
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Chaojiang Fan,Rong Yang,Yun Yang,Yuanyuan Yang,Yong Huang,Yinglin Yan,Lisheng Zhong,Yunhua Xu
Although lithium-sulfur batteries (LSBs) are an attractive next-generation rechargeable battery with high theoretical energy density (2600 Wh kg −1 ) and specific capacity (1675 mA h g −1 ), the shuttle of soluble lithium polysulfides (LiPSs) is still the protruding obstacle to accelerate the redox reaction of LSBs. Here, cubic cobalt diselenide@carbon (CoSe 2 @C) derived from zeolite imidazole framework-67 (ZIF-67) was employed as the functional coating of polypropylene (PP) separator to efficiently adsorb and catalyze polysulfides, inhibit “shuttle effect” and improve the electrochemical reaction kinetics of LSBs. The CoSe 2 @C offers larger mesopore proportion of 77.19 % and abundant active sites to ensure space as a secondary reaction region, and infiltration of electrolyte and rapid transport of Li + . The involved adsorption and catalysis effect are discussed by static adsorption experiment, XPS, and Li 2 S nucleation kinetics analysis. The results show that CoSe 2 @C exhibits strong adsorption effect and catalytic activity on LiPSs, and CoSe 2 @C/PP cells display fast Li + diffusion and improved redox kinetics (high Li 2 S nucleation peak current of 0.27 mA and deposition capacity of 148.46 mA h g −1 ). Ascribe to these advantages, the CoSe 2 @C/PP cell provides an initial discharge specific capacity of 1335.01 mA h g −1 at 0.1 C and a fine reversible capacity at 5.0 C, and achieves stable and durable lifespan with an average capacity decay rate of 0.12 % over 400 cycles at 0.5 C. This work could promote the practical application of metal selenides in the key components and devices for LSBs.
研究领域:
材料科学
·
能源存储
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高影响因子
Drug Design Development and Therapy
·
2025
·
IF 5.1
Zhiqi Shi,Qing Wang,Qing Li,Fan Jia,Weifeng Xu
Purpose: Major depressive disorder (MDD) is a global health concern. Studies have demonstrated that oleanolic acid (OA) has a regulatory effect on MDD. However, OA is poorly soluble, has low oral bioavailability, and faces challenges in crossing the blood-brain barrier. In this study, building upon a previous formulation of OA cubic liquid crystal nanoparticles (OA-LCNP), we combined nanoparticles with a thermosensitive gel for nasal administration and investigated the pharmacological effects of OA-LCNP thermosensitive gel (OANG) on depression. This study aimed to evaluate the effects of OANG on depression symptoms in rats.Methods: OANG was prepared using Poloxamer F127 and F68 as the gel matrix, and the ratios of F127 and F68 were investigated. The pharmacokinetics of OANG was studied in rats, and OA content was determined using liquid chromatography-mass spectrometry (LC-MS). The pharmacological effects of OANG on depression were evaluated in chronic unpredictable mild stress (CUMS) model rats.Results: The phase transition temperature of the gel was 34°C, and the release of OA from OANG was slow according to the Higuchi kinetic equation. The AUC0-t of brain tissue after nasal OANG administration was 1.21 times that observed after intravenous administration. Additionally, the brain-targeting efficiency and nasal-brain direct transfer were 29.91% and 9.44% higher, respectively, than those observed after intravenous administration, indicating the brain-targeting capability of the OANG delivery system. Network pharmacological analysis revealed that the anti-depressant effects may be linked to neuroactive ligand-receptor interactions, the PPAR signaling pathway, and efferocytosis signaling pathways. Experimental results from CUMS rats showed that the gel significantly affected interleukin (IL)-4, IL-6, acetylcholinesterase, acetylcholine, 5-hydroxytryptamine, and brain-derived neurotrophic factor, and improved depression-like behavior in rats, as measured by sucrose preference, forced swimming, and box shuttle tests.Conclusion: The OANG nasal drug delivery system has specific brain-targeting properties and exerts anti-depressant effects.
研究领域:
药剂学
·
神经科学
·
药物递送系统
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ACS Applied Energy Materials
·
2020
·
IF 4.473
Jianxu Ding,Lin Jing,Ye Yuan,Jie Zhang,Qing Yao,Kaiyu Wang,Weiwei Zhang,Haiqing Sun,Bing Liu,Tianliang Zhou,Xiaoyuan Zhan
The optoelectronic performances of MAPbI3 are related to film morphology and crystal orientation. However, it is difficult to directly quantify the optoelectronic anisotropy in thin films because controlling growth-oriented grains and measuring the optoelectronic difference within micro–nono regions have great technological challenges. Here, taking advantages of the pseudo-cubic morphology of MAPbI3 single crystals (SCs) exposed with (110), (002), and (200) facets, the optoelectronic anisotropies are compared. It reveals that the periodic positive and negative potential distributions at the outermost (110) surface, the orientations of MA+ dipoles, and the stacking of PbI6 octahedrons ensure (110) planes have lower defect densities (VI+, VMA–, I–, MA+, or Ii–, etc.), which therefore enhance photo recycling, deduce the dark current, and increase the photocurrent. Besides, the periodic MA+ and I– arrangements at the (110) surface also restrict ion migrations compared to those of (200) planes. In addition, by comparing the optoelectronic properties of (200) planes of the pseudo-cubic and rhombic dodecahedral MAPbI3 SCs, it is found that the room-temperature-grown pseudo-cubic MAPbI3 SC possesses lower intrinsic defect densities and thus enhances the photo response.
研究领域:
材料科学
·
光电材料
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ELECTROCHIMICA ACTA
·
2020
·
IF 6.215
Peng Zhou,Xingshuai Lv,Yugang Gao,Zhong Liang,Yuanyuan Liu,Zeyan Wang,Peng Wang,Zhaoke Zheng,Ying Dai,Baibiao Huang
Recently, Ni x Mo y N materials attach much attention in the field of electrocatalytic hydrogen evolution due to their good performance and high stability. However, most of the reports on Ni x Mo y N materials are Ni 0·2 Mo 0·8 N, and there are few reports on Ni 2 Mo 3 N. In fact, as one member of the Ni x Mo y N materials, Ni 2 Mo 3 N also has rich electronic properties and high electrical conductivity. Herein, we report the novel Ni 2 Mo 3 N and compare it to the traditional Ni 0·2 Mo 0.8 N. The results show that the Ni 2 Mo 3 N exhibits better performance than the Ni 0·2 Mo 0·8 N which means that it has great research potential in the field of hydrogen evolution. In order to further improve its catalytic performance, we regulate its electronic structure by V doping (V–Ni 2 Mo 3 N). The V–Ni 2 Mo 3 N material exhibits lower overpotential (54 mV at 10 mA cm −2 ) and outstanding stability. According to the theoretical calculation, the reason why the material exhibits superior performance is that V doping optimizes the chemical adsorption and bonding ability of the material to water molecule and reaction intermediate H, improves the electrical conductivity of the material.
研究领域:
材料科学
·
电化学
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CHEMICAL PHYSICS LETTERS
·
2019
·
IF 1.901
Wenchao Zhao,Wenjie Zhao,Zhiping Huang,Gang Liu,Bin Wu
Hexagonal boron nitride and cubic boron nitride were modified by polydopamine to improve dispersion in epoxy resin (EP). The average coefficient of friction (COF) of EP-HBN@PDA coating decreased under dry and seawater condition compared to EP indicating BN possessed self-lubricating effect. COF decreased with CBN content raising in seawater, because seawater removed debris including BN particles and CBN with high hardness improved rigidity of coatings. Wear rates of EP-CBN@PDA coating decreased by 68.88% and 97.95% compared to EP-HBN@PDA, and binary-filled coating performed excellently under seawater, it revealed CBN was more effective than HBN in improving load carrying capacity of coatings.
研究领域:
材料科学
·
表面工程
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ACS Nano
·
2020
·
IF 14.588
Qiyue Wang,Xibo Ma,Hongwei Liao,Zeyu Liang,Fangyuan Li,Jie Tian,Daishun Ling
Stem cell therapies are increasingly recognized as the future direction of regenerative medicine, but the biological fate of the administrated stem cells remains a major concern for clinical translation, which calls for an approach to efficiently monitoring the stem cell behaviors in vivo. Magnetic particle imaging (MPI) is an emerging technology for cell tracking; however, its utility has been largely restricted due to the lack of optimal magnetic nanoparticle tracers. Herein, by controlled engineering of the size and shape of magnetic nanoparticles tailored to MPI physics theory, a specialized MPI tracer, based on cubic iron oxide nanoparticles with an edge length of 22 nm (CIONs-22), is developed. Due to the inherent lower proportion of disordered surface spins, CIONs-22 exhibit significantly larger saturation magnetization than that of spherical ones, while they possess similar saturation magnetization but smaller coercivity compared to larger-sized CIONs. These magnetic properties of CIONs-22 warrant high sensitivity and resolution of MPI. With their efficient cellular uptake, CIONs-22 exhibit superior MPI performance for stem cell labeling and tracking compared to the commercialized tracer Vivotrax. By virtue of these advantages, CIONs-22 enable real-time and prolonged monitoring of the spatiotemporal trajectory of stem cells transplanted to hindlimb ischemia mice, which demonstrates the great potential of CIONs-22 as MPI tracers to advance stem cell therapies.
研究领域:
生物医学工程
·
再生医学
·
纳米技术
·
医学成像
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ELECTROCHIMICA ACTA
·
2020
·
IF 6.215
Nan Wang,Shaobo Ma,Jizhou Duan,Xiaofan Zhai,Fang Guan,Xiutong Wang,Baorong Hou
The electrochemical synthesis of hydrogen peroxide (H 2 O 2 ) based on 2-electron oxygen reduction reaction (ORR), is a particularly promising alternative route for in-situ application. Herein, we prepared the oxidized graphene aerogel supported cubic manganese carbonate composites (GO x /MnCO 3 ) with different GO and MnCO 3 ratio through a simple co-precipitation/in-situ coating method. The GO x /MnCO 3 composites, with uniformly wrapping of GO on the surface of MnCO 3 cubic, display high conductivity and abundant catalytic sites for 2-electron ORR. The G 0.2 M shows the best ORR catalytic performance, onset potential of 0.635 V RHE , high H 2 O 2 production selectivity and high stability in 3.5% NaCl electrolyte. Based on this, G 0.2 M as oxygen reduction electrocatalyst , has good antibacterial effect at 0.55 V RHE on the stainless-steel. The antibacterial mechanism is mainly due to the electrocatalytic oxygen reaction of H 2 O 2 and the side reaction of •OH and O 2 •- . This provides an impressive, effective and environmentally friendly electrochemical approach for antibacterial and antifouling applications.
研究领域:
材料科学
·
电化学
·
生物学
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JOURNAL OF POWER SOURCES
·
2017
·
IF 6.395
Bo Li,Yanan Zhang,Luyuan Zhang,Longwei Yin
Inorganic CsPbBr 3 perovskite is arousing great interest following after organic-inorganic hybrid halide perovskites, and is found as a good candidate for photovoltaic devices for its prominent photoelectric property and stability. Herein, we for the first time report on PbCl 2 -tuned inorganic Cl-doped CsPbBr 3 (Cl) perovskite solar cells with adjustable crystal structure and Cl doping for enhanced carrier lifetime, extraction rate and photovoltaic performance . The effect of PbCl 2 on the morphologies, structures, optical, and photovoltaic performance of CsPbBr 3 perovskite solar cells is investigated systemically. Compared with orthorhombic CsPbBr 3 , cubic CsPbBr 3 demonstrates a significant improvement for electron lifetime (from 6.7 ns to 12.3 ns) and diffusion length (from 69 nm to 197 nm), as well as the enhanced electron extraction rate from CsPbBr 3 to TiO 2 . More importantly, Cl doping benefits the further enhancement of carrier lifetime (14.3 ns) and diffusion length (208 nm). The Cl doped cubic CsPbBr 3 (Cl) perovskite solar cell exhibits a J sc of 8.47 mA cm −2 and a PCE of 6.21%, superior to that of pure orthorhombic CsPbBr 3 (6.22 mA cm −2 and 3.78%). The improvement of photovoltaic performance can be attributed to enhanced carrier lifetime, diffusion length and extraction rates, as well as suppressed nonradiative recombination.
研究领域:
材料科学
·
光伏技术
·
半导体物理
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2018
·
IF 5.091
Tianyu Xiang,Feng Xin,Can Zhao,Shuo Lou,Wenxiu Qu,Yong Wang,Yuexiao Song,Shuangfang Zhang,Xiaohong Yin
A synthetic process was exploited to fabricate patchy CuO evenly planted on cubic NaTaO 3 for photocatalytically reducing CO 2 in isopropanol. The nano patches of CuO with about 15 nm in size were uniformly distributed on the surface of NaTaO 3 via a phase-transfer protocol and solvothermal synthesis. The crystal phase, morphology, composition, optical absorption and charge separation of as-prepared CuO-NaTaO 3 were characterized by XRD, SEM, TEM, EDX, XPS, UV–Vis and PL. The results of photocatalytic reduction of CO 2 confirmed that the CuO patched NaTaO 3 possessed better ability to separate charge carriers and selectively reduce CO 2 to methanol than CuO directly loaded NaTaO 3 using the traditional liquid phase reduction procedure after comparing the methanol yields. Furthermore, 5 wt% CuO patched NaTaO 3 led to the highest methanol yield of 1302.22 μmol g −1 h −1 . A redox mechanism was proposed and illustrated in a schematic diagram.
研究领域:
材料科学
·
环境科学
·
化学工程
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PubMed
高影响因子
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