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Polystyrene nanoplastics cause developmental abnormalities, oxidative damage and immune toxicity in early zebrafish development

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Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology 2025年 295卷 110216页

作者： Saputra, Febriyansyah Pramata, Azzah Dyah Soegianto, Agoes Hu, Shao-Yang Department of Biology Faculty Sciences and Technology Universitas Airlangga Campus C Surabaya 60115 Indonesia Mathematics and Natural Sciences Doctoral Program Faculty of Science and Technology Universitas Airlangga Surabaya 60115 Indonesia Department of Materials and Metallurgical Engineering Faculty of Industrial Technology and Systems Engineering Institut Teknologi Sepuluh Nopember Surabaya 60116 Indonesia Department of Biological Science and Technology National Pingtung University of Science and Technology Pingtung 912301 Taiwan

Aquatic organisms are increasingly affected by polystyrene nanoplastics (PSNPs), which have the potential to disrupt development, induce oxidative stress, and impair immune function. This study examined the effects of PSNPs on zebrafish (Danio rerio) embryos exposed to 0.01, 0.1, 1, and 10 μg/mL from 2 to 120 h post-fertilization (hpf). The findings indicated that developmental abnormalities occurred in a dose-dependent manner, including delayed hatching, decreased survival rates, reduced body length, smaller eye diameter, and enlarged yolk sac area. PSNPs accumulated in the chorion and yolk sac as early as 6 hpf and were detected in vital tissues, such as the eyes, heart, yolk sac, liver, pancreas, intestine, neuromasts, and tail, immediately after hatching. By 120 hpf, PSNPs significantly reduced swimming distance and velocity. Exposure to PSNPs induced oxidative damage evidenced by altered expression of antioxidant-related genes (CAT1, GPX1A, SOD1, NRF2, KEAP1, HSP70, MT), disrupting cellular homeostasis and causing structural and organ defects. Immune toxicity was marked by dysregulated expression of immune-related genes (IL-1β, IL-6, NF-κB, TNF-α, C3B, TLR-1, TLR-3, TLR-4), indicating inflammation and innate immune activation triggered by oxidative damage. This study highlights the interconnected impacts of developmental abnormalities, oxidative damage, and immune toxicity caused by PSNPs exposure, highlighting the systemic impacts of nanoplastics contamination in aquatic environments. © 2025 Elsevier Inc.

关键词： Developmental abnormalities Immune toxicity Oxidative damage Polystyrene nanoplastics Zebrafish embryos

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Coupled effects of morphology/length scale of the microstructure and microsegregation on the corrosion behaviour of a single-phase Zn-1wt%Cu alloy

Next Materials

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Next materials 2025年 8卷

作者： Miranda, Romulo S. Vida, Talita Ligeiro, Henrique S. Cheung, Noé Simões, Fábio R. Garcia, Amauri Brito, Crystopher Postgraduate Program in Engineering São Paulo State University Guaratinguetá Brazil Department of Aeronautical Engineering School of Engineering/São Paulo State University São João da Boa Vista Brazil Department of Manufacturing and Materials Engineering University of Campinas Campinas Brazil Institute of Marine Science Federal University of São Paulo Santos Brazil

Zn-Cu alloys are promising for biomaterials due to their unique properties. Unlike most metallic alloys, Zn-Cu exhibits a partition coefficient greater than 1, leading to solvent segregation. This study aims to explore how microsegregation and cellular microstructure affect the corrosion behaviour of a Zn-1wt%Cu alloy. Three specimens, with cellular spacings of approximately 8, 16, and 32 µm, were extracted from a directionally solidified casting. Electrochemical Impedance Spectroscopy and Potentiodynamic Polarization techniques were used to assess the corrosion performance in NaCl solutions. The results showed that coarser cellular structures demonstrated higher corrosion resistance, evidenced by greater charge transfer resistances and lower current densities. Corrosion initiated at the Cu-poor cellular boundaries, acting as anodic regions, and became more severe in finer microstructures. In contrast, larger cells with fewer boundaries exhibited less generalised corrosion, confirming that microstructural coarsening improves corrosion resistance. © 2025 The Authors

关键词： Biodegradable Zn-Cu alloys Corrosion behaviour in NaCl Electrochemical performance of biomaterials Galvanic corrosion mechanisms Microstructural refinement

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Enhanced dry reforming of methane over nickel catalysts supported on zirconia coated mesoporous silica

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iscience 2025年第6期28卷

作者： Zhong, Yi Peng, Yuhao Gu, Hao Zhang, Shan Wang, Feng Ryan Xiao, Wei Yu, Hulei Gu, Dong The Institute for Advanced Studies Wuhan University Hubei Wuhan 430072 China School of Materials Science and Engineering South China University of Technology Guangzhou 510640 China Department of Chemical Engineering University College London London WC1E 7JE United Kingdom College of Chemistry and Molecular Sciences Hubei Key Laboratory of Electrochemical Power Sources Wuhan University Wuhan 430072 China Institute of Materials Science and Devices Suzhou University of Science and Technology Suzhou 215011 China

Dry reforming of methane (DRM) offers a sustainable route to convert CH4 and CO2 into syngas, addressing both greenhouse gas emissions and energy demand. However, catalyst deactivation due to sintering and coking limi... 详细信息

Dry reforming of methane (DRM) offers a sustainable route to convert CH₄ and CO₂ into syngas, addressing both greenhouse gas emissions and energy demand. However, catalyst deactivation due to sintering and coking limits practical applications. In this work, we developed a mesoporous Ni-based catalyst (Ni/ZrSBA-15-OH) featuring abundant Ni-ZrO₂ interfaces and small Ni nanoparticles (5.6 nm) confined within a stable silica framework. This catalyst showed excellent performance, achieving 80% CH₄ and 87% CO₂ conversions at 750°C, with minimal coke formation (0.4 mg g_cat⁻¹ h⁻¹) and high durability (1.3% CH₄ conversion loss over 20 h). Advanced characterizations (X-ray absorption spectroscopy [XAS], transmission electron microscopy [TEM], H₂-temperature programmed reduction [H₂-TPR], and temperature-programmed surface reaction [TPSR]) revealed that the metal-oxide interface enhances the activation of reactants and stabilizes active sites. Density functional theory (DFT) calculations confirmed that the Ni-ZrO₂ interface increases the energy barrier for CH∗ dehydrogenation, effectively suppressing carbon deposition. This study provides a rational strategy for designing structurally robust and coke-resistant Ni-based catalysts for efficient DRM. © 2025 The Author(s)

关键词： Chemistry materials chemistry materials science

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Dual-compressed photoacoustic single-pixel imaging

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National science Review 2023年第1期10卷 187-195页

作者： Yuning Guo Baowen Li Xiaobo Yin Department of Mechanical Engineering University of Colorado Department of Material Science and Engineering Department of Physics Shenzhen Institute for Quantum Science and Engineering Southern University of Science and Technology Materials Science and Engineering Program University of Colorado

Photoacoustic imaging,an acoustic imaging modality with potentially optical resolution in an optical turbid medium,has attracted great ***,the convergence of wavefront optimization and raster scanning in computational photoacoustic imaging leads to the challenge of fast mapping,especially for a spatial resolution approaching the acoustic deep-subwavelength *** a sparse sampling paradigm,compressive sensing has been applied in numerous fields to accelerate data acquisition without significant quality *** this work,we propose a dual-compressed approach for photoacoustic surface tomography that enables high-efficiency imaging with 3D spatial resolution unlimited by the acoustics in a turbid *** dual-compressed photoacoustic imaging with single-pixel detection,enabled by spatially optical modulation with synchronized temporally photoacoustic coding,allows decoding of the fine optical information from the modulated acoustic signal even when the variance of original photoacoustic signals is *** perform a proof-of-principle numerical demonstration of dual-compressed photoacoustic imaging, that resolves acoustic sub-acoustic-wavelength details with a significantly reduced number of measurements,revealing the potential for dynamic *** dual-compressed concept,which transforms unobtrusive spatial difference into spatio-temporal detectable information,can be generalized to other imaging modalities to re alize efficient,high-spatial-resolution imaging.

关键词： photoacoustic imaging compressive sensing single-pixel imaging surface tomography

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Rare Earths and Magnetic Refrigeration

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Journal of Rare Earths 2006年第6期24卷 641-647页

作者： Karl A Gschneidner Vitalij K Pecharsky Materials and Engineering Physics Program Ames Laboratory and Department of Materials Science and Engineering Iowa State University Ames Iowa USAJr. Materials and Engineering Physics Program Ames Laboratory and Department of Materials Science and Engineering Iowa State University Ames Iowa USA

Magnetic refrigeration is a revolutionary, efficient, environmentally friendly cooling technology, which is on the threshold of commercialization. The magnetic rare earth materials are utilized as the magnetic refrigerants in most cooling devices, and for many cooling application the Nd2Fe14B permanent magnets are employed as the source of the magnetic field. The status of the near room temperature magnetic cooling was reviewed.

关键词： magnetic refrigeration magnetocaloric effect gadolinium Gd5 （ Si1- x Gex ） 4 La （ Fe 13 - x Six ） Hy Nd2 Fe14 B permanent magnets active magnetic regenerator cycle rare earths

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Facile Li-Ion Transport via LLTO Scaffold with Crosslinked Polyethylene Glycol Composite Electrolyte for Solid-State Batteries

SSRN

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SSRN 2025年

作者： Lee, Jungkuk Counihan, Michael J. Barai, Pallab Burns, Meghan E. Singh, Vibhu V. Jamnuch, Sasawat Pascal, Tod A. Shrinivasan, Venkat Tepavcevic, Sanja Zhang, Yuepeng Applied Materials Division Argonne National Laboratory LemontIL60439 United States Materials Science Division Argonne National Laboratory LemontIL60439 United States Department of Chemistry University of Illinois Chicago ChicagoIL60607 United States ATLAS Materials Physics Lab Aiiso Yufeng Li Family Department of Chemical and Nano Engineering University of California San Diego La Jolla CA92093 United States Microscopy and Microanalysis Research Group Materials Measurement Science Division National Institute of Standards and Technology GaithersburgMD20899 United States Material Science and Engineering Program University of California San Diego La Jolla CA92093 United States Chemical Sciences and Engineering Division Argonne National Laboratory LemontIL60439 United States

Composite polymer electrolytes (CPEs) hold significant promise for solid-state batteries due to their ability to combine the benefits of inorganic fillers and polymer matrices. However, agglomeration of inorganic fillers can disrupt the formation of a percolation pathway, hindering lithium-ion transport. Here, we developed a stable, porous, and interconnected 3-dimentional LLTO (Li0.33La0.557TiO3) nanofiber scaffold and fabricate CPEs using in-situ crosslinked polyethylene glycol (xPEG). The resulting self-standing LLTOxPEG-65 achieved an ionic conductivity of 5.0 × 10−4 S/cm at 30 °C and a critical current density of 0.5 mA/cm2. A significantly lower activation energy (~0.2 eV) was observed in LLTOxPEG-65 compared to pristine xPEG (0.44 eV), indicating a transition of lithium-ion transport pathways from xPEG to the LLTO scaffold. However, increasing the xPEG content led to a decrease in ionic conductivity and a rise in activation energy, approaching that of pristine xPEG. DFT calculations revealed that Li+ transport in the [010] and [001] planes of LLTO predominantly takes place within the bulk rather than along the surface, while a concerted diffusion mechanism was observed in the [100] plane. Additionally, mesoscale-level computational analysis indicated that the high LLTO scaffold fraction (90 wt %) can ensure transport through the bulk of the fibers even with larger interfacial charge transfer resistance, around 1 Ω·cm2 between LLTO and xPEG. Presence of the highly percolated LLTO scaffold helps to promote efficient Li+ transport through the bulk of LLTO. © 2025, The Authors. All rights reserved.

关键词： Activation energy

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Optimizing dispersion of torrefied spent coffee grounds for enhanced biochar-EVA composite properties through sodium percarbonate-assisted treatment

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Journal of Industrial and engineering Chemistry 2025年

作者： Lee, Kuan-Ting Gabriela, Situmorang Chen, Wei-Hsin Rajendran, Saravanan Selvarajoo, Anurita Department of Chemical and Materials Engineering Tunghai University Taichung407 Taiwan International Master Degree Program on Energy Engineering National Cheng Kung University Tainan701 Taiwan Department of Aeronautics and Astronautics National Cheng Kung University Tainan701 Taiwan Research Center for Smart Sustainable Circular Economy Tunghai University Taichung407 Taiwan Department of Mechanical Engineering National Chin-Yi University of Technology Taichung411 Taiwan Instituto de Alta Investigación Universidad de Tarapacá Arica1000000 Chile Department of Civil Engineering Faculty of Science and Engineering University of Nottingham Malaysia

This study aims to optimize biochar by combining 10 % sodium percarbonate with 90 % spent coffee grounds and torrefying at 300 °C for 30 min. Biochar enhances black color dispersion in a composite when blending the optimal biochar and ethylene vinyl acetate. The maximum carbon content of the optimal biochar is 59.97 %, exhibiting similar dispersion, packing density, pore size, and contact angle to carbon black. The optimal biochar's specific surface area and total pore volume are 7.12 m2·g−1 and 0.0018 cm3·g−1, respectively, 2.9 times and 1.2 times that of untreated torrefied spent coffee grounds with SP treated. The mechanical properties of the composite, which is blended with 15 wt% of the optimal biochar to ethylene vinyl acetate through trade-off analysis, indicate a tensile strength and Young's modulus of 1.03 MPa and 9.69 MPa, respectively. As the amount of blended optimal biochar increases, the tensile strength decreases while Young's modulus increases. Compared with a composite blended with the same 15 wt% of carbon black, the tensile strength and Young's modulus are 0.77 MPa and 9.55 MPa, respectively. In conclusion, the optimal biochar is a potential alternative material that could replace carbon black. This finding aligns with the developmental direction of achieving negative carbon emissions, promoting a circular economy and valorizing waste. © 2025 The Korean Society of Industrial and engineering Chemistry

关键词： Tensile strength

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Hot Corrosion Behavior of Lapo4-Ysz Thermal Barrier Coating Exposed to Molten Calcium-Magnesium-Alumino-Silicate (Cmas) at 1250°C-1350°C

SSRN

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SSRN 2025年

作者： Deng, Panhao Huang, Wenzhi Zhong, Ruiqi Yu, Yiping Lou, Junhua Deng, Zixin Zhou, Xin Science and Technology on Advanced Ceramic Fibers and Composites Laboratory College of Aerospace Science and Engineering National University of Defense Technology Changsha410073 China Qingdao Brunch of Naval Aeronautics University Qingdao China College of Intelligence Science and Technology National University of Defense Technology Changsha410073 China Institute for Advanced Studies in Precision Materials Yantai University Yantai264005 China National University of Defense Technology China

The calcium-magnesium-alumina-silicate (CMAS) corrosion behavior of LaPO4-YSZ thermal barrier coatings (TBCs) was investigated at 1250°C-1350°C for 4 hours. Corrosion was observed to occur primarily at the grain boundaries, and the corrosion depth increased with increasing temperature. The melt infiltration reaction layer formed after CMAS corrosion was primarily composed of ZrO2, residual CMAS, and La-apatite (Ca2+xLa8-x(SiO4)6-x(PO4)xO2), regardless of the temperature. It was worth noting that a continuous dense reaction layer was formed after the corrosion test at 1250 °C, which further delayed the infiltration of CMAS. However, the molten CMAS could infiltrate into the coating more easily when the temperature exceeds 1300 °C, leading to more severe corrosion. The results show that the CMAS corrosion behaviors of coating at different temperatures were primarily controlled by the infiltration and reaction processes;When temperatures exceed 1300°C, CMAS infiltration becomes the dominant process due to the reduced viscosity of the CMAS melt. © 2025, The Authors. All rights reserved.

关键词： Thermal barrier coatings

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Correlation versus dissipation in a non-Hermitian Anderson impurity model

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Physical Review B 2025年第12期111卷 125157-125157页

作者： Kazuki Yamamoto Masaya Nakagawa Norio Kawakami Department of Physics Tokyo Institute of Technology Meguro Tokyo 152-8551 Japan Department of Physics University of Tokyo Hongo Tokyo 113-0033 Japan Fundamental Quantum Science Program TRIP Headquarters RIKEN Wako 351-0198 Japan Department of Physics Ritsumeikan University Kusatsu Shiga 525-8577 Japan Department of Materials Engineering Science Osaka University Toyonaka Osaka 560-8531 Japan

We analyze the competition between strong correlations and dissipation in quantum impurity systems from the Kondo regime to the valence fluctuation regime by developing a slave-boson theory for a non-Hermitian Anderson impurity model with one-body loss. Notably, in the non-Hermitian Kondo regime, strong correlations qualitatively change the nature of dissipation through renormalization effects, where the effective one-body loss is suppressed and emergent many-body dissipation characterized by the complex-valued hybridization is generated. We unveil the mechanism of a dissipative quantum phase transition of the Kondo state on the basis of this renormalization effect, which counterintuitively enhances the lifetime of the impurity against loss. We also find a crossover from the non-Hermitian Kondo regime to the valence fluctuation regime dominated by one-body dissipation. Our results can be tested in a wide variety of setups such as quantum dots coupled to electronic leads and quantum point contacts in ultracold Fermi gases.

关键词： Bosons

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Gradient Design with Low-Tortuosity Overcoming Kinetic Limitations in High-Loading Solid-State Cathodes

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Angewandte Chemie 2025年

作者： Guangzeng Cheng Jinping Yu Yonghui Wang Zhengyu Ju Yue Zhu Weiqian Tian Jingwei Chen Huanlei Wang Jingyi Wu Guihua Yu School of Materials Science and Engineering Ocean University of China Qingdao 266404 China Materials Science and Engineering Program and Walker Department of Mechanical Engineering The University of Texas at Austin Austin Texas 78712 USA

The extensive commercialization of practical solid-state batteries (SSBs) necessitates the development of high-loading solid-state cathodes with fast charging capability. However, electrochemical kinetics are severely delayed in thick cathodes due to tortuous ion transport pathways and slow solid-solid ion diffusion, which limit the achievable capacity of SSBs at high current densities. In this work, we propose a conductivity gradient cathode with low-tortuosity to enable facile ion transport and counterbalance ion concentration gradient, thereby overcoming the kinetic limitations and achieving fast charging capabilities in thick cathodes. The LiNi 0.8 Co 0.1 Mn 0.1 O 2 cathodes deliver a room-temperature (RT) capacities of 147 and 110 mAh g −1 at 5 C and 10 C, respectively, and meanwhile achieve a RT areal capacity of 3.3 mAh cm −2 at 3 C, enabling SSBs simultaneously high energy and power densities. The universality of this strategy is demonstrated in LiFePO 4 cathodes, providing a novel solution for fast charging and large-scale application of high-loading SSBs.

关键词： solid-state battery composite cathode high-loading gradient low-tortuosity

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