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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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Polyacrylamide hydrogel containing rice husk ash as internal curing agent in mortar/concrete

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Journal of Molecular Liquids 2025年 423卷

作者： de Almeida, Edson Araujo Kruger, Fábio Rodrigo Valderrama, Patrícia da Silva Gonzalez, Regiane Muniz, Edvani Curti Chemistry Postgraduation Program Chemistry Department State University of Maringá – UEM Paraná Maringá87020-90 Brazil Civil Engineering Department Federal University of Technology – Paraná – UTFPR-CM Paraná Campo Mourão87301-899 Brazil Chemistry Department Federal University of Technology – Paraná – UTFPR-CM Paraná Campo Mourão87301-899 Brazil Food Postgraduation Program Federal University of Technology – Paraná – UTFPR-CM PR Campo Mourão87301-899 Brazil Materials Science and Engineering Postgraduation Program Federal University of Technology – Paraná – UTFPR-LD PR Londrina86036-370 Brazil Chemistry Postgraduation Program Chemistry Department Federal University of Piauí – UFPI Piauí Teresina64049-550 Brazil

Internal curing is a process based on the addition of materials that work as water reservoirs in cementitious media. Their function is to minimize the effect of water lost through evaporation and self-desiccation that occurs during curing. Hydrogels are polymeric materials that have the ability of absorbing and retaining water and releasing it in a gradual and sustained way. In this work, polyacrylamide hydrogel containing rice husk ash (PAAm/RHA) was synthesised and applied in mortar and concrete formulations. The aim was to study the influence of this material on the hydration process and on the final properties of such cementitious materials. The results indicated that the addition of as prepared composite hydrogel improved the mechanical strength and reduced shrinkage in the mortar in 23%;however, its application in concrete led to a reduction of 7.1% in the mechanical strength. Despite this, it can be postulated that the developed hydrogel acts satisfactorily for internal curing in cementitious materials. To the best of our knowledge, it is the first time that hydrogel formulation uses rice husk ash (RHA) and crosslinked polyacrylamide to be used as curing agent for mortars and concrete. Beyond the technological use of composite hydrogel as curing agent, the methodology is also interesting because rice husk ash, as by-product from rice agro-industries, was used. So, it should be seen also as a contribution for environment. © 2025 Elsevier B.V.

关键词： Mortar

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Enhanced output performance in paper-based piezoelectric nanogenerators via polarization-engineered Schottky barrier contacts

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Journal of materials Chemistry C 2025年

作者： Wang, Ping Xin, Haoyang Wang, Xiuli Luo, Jingyu Xu, Ruiqi Wang, Zhigang Wang, Zhanhua Zhang, Sufeng Sun, Zixiong Jung, Jong Hoon School of Electronic Information and Artificial Intelligence Shaanxi University of Science and Technology Xi’an 710021 China Engineering Research Center of Eco-friendly Polymeric Materials Ministry of Education Sichuan University Chengdu 610065 China School of Materials Science and Engineering Shaanxi University of Science and Technology Xi’an 710021 China Shandong Provincial Engineering Research Center of Organic Functional Materials and Green Low-Carbon Technology Dezhou University Dezhou 253023 China State Key Laboratory of Polymer Materials Engineering (Sichuan University) Chengdu 610065 China Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development National Demonstration Center for Experimental Light Chemistry Engineering Education China Department of Physics Inha University Incheon 22212 South Korea Program in Semiconductor Convergence Inha University Incheon 22212 South Korea Physics Research Institute Inha University Incheon 22212 South Korea

Cellulose, owing to its abundant natural availability and excellent mechanical properties, is considered an ideal alternative to petroleum-based polymers in the fabrication of piezoelectric nanogenerators (PENGs). In this study, we fabricated PENGs with a matrix composed of 80% cellulose and 20% PVDF by mass, incorporating KNN ceramics with varying components as fillers. The films exhibited a dense structure with uniform distribution of KNN fillers, facilitated by hydrogen bonding between the cellulose, PVDF, and KNN. The piezoelectric output performance was significantly enhanced by the piezoelectric polarization-induced Schottky barrier contact and the additional triboelectric contribution from the interaction between the film and PDMS, as elucidated using band theory and two distinct connection modes. Among the PENGs, the C8P2-KNN46 device demonstrated the highest piezoelectric output, achieving a peak power density (P_D) of 12.81 μW cm⁻² under a 10 N force, surpassing most other paper-based PENGs. Furthermore, the contributions of piezoelectric and triboelectric mechanisms were clearly identified. In addition to its impressive piezoelectric performance, the C8P2-KNN46 PENG exhibited excellent mechanical properties, high hydrophobicity, and long-term reliability. Notably, the device was capable of lighting a 3 V LED with simple bending, highlighting its significant potential for next-generation passive devices. © 2025 The Royal Society of Chemistry.

关键词： Piezoelectric devices

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Facile Synthesis of BCNO Yellow-Emitting Phosphors Applications for White LEDs by Microwave Heating

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Acta Metallurgica Sinica(English Letters) 2017年第2期30卷 113-119页

作者： Yan-Fang Yang Jing-Jing Chen Zhi-Yong Mao Guang-Hao Li Jiao Xu Da-Jian Wang Bradley D.Fahlman Tianjin Key Laboratory for Photoelectric Materials and Devices School of Materials Science and EngineeringTianjin University of Technology Department of Chemistry and Biochemistry Science of Advanced Materials ProgramCentral Michigan University

Yellow-emitting BCNO phosphors,applied for white light-emitting-diodes（LEDs）,were synthesized by a facile microwave heating route at lower temperature within short *** prepared BCNO phosphors exhibited amorphous form and tunable yellow emission in the range of 510–550 nm under the excitation of 450-nm blue *** effects of carbon content on the photoluminescence properties for these BCNO phosphors and their application performances in white LEDs were investigated in *** demonstrated microwave synthesis route is promising in preparing low-cost phosphors,and the prepared BCNO phosphor may find potential application in blue-based white LEDs.

关键词： BCNO phosphors Photoluminescence Microwave heating White LEDs

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Design and applications of lattice plasmon resonances

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Nano Research 2018年第9期11卷 4423-4440页

作者： Bharath Bangalore Rajeeva Linhan Lin Yuebing Zheng Materials Science and Engineering Program Department of Mechanical Engineering The University of Texas at Austin Austin Texas78712 USA

With their unique optical properties associated with the excitation of surface plasmons, metal nanoparticles （NPs） have been used in optical sensors and devices. The organization of these NPs into arrays can induce coupling effects to engineer new optical responses. In particular, lattice plasmon resonances （LPRs）, which arise from coherent interactions and coupling among NPs in periodic arrays, have shown great promise for realizing narrow linewidths, angle-dependent dispersions, and high wavelength tunability of optical spectra. By engineering the materials, shapes, sizes, and spatial arrangements of NPs within arrays, one can tune the LPR-based spectral responses and electromagnetic field distributions to deliver a multitude of improvements, including a high figure-of-merit, superior light-matter interaction, and multiband operation. In this review, we discuss recent progress in designing and applying new metal nanostructures for LPR-based applications. We conclude this review with our perspective on the future opportunities and challenges of LPR-based devices.

关键词： plasmonics,lattice plasmon resonance,nanoparticle array coupling,sensors

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Site-specific forest-assembly of single-wall carbon nanotubes on electron-beam patterned SiOx/Si substrates

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materials science and engineering C 2008年第8期28卷 1366-1371页

作者： Wei, Haoyan Kim, Sang Nyon Kim, Sejong Huey, Bryan D. Papadimitrakopoulos, Fotios Marcus, Harris L. Materials Science and Engineering Program Department of Chemical Materials and Biomolecular Engineering Institute of Materials Science Storrs CT 06269 United States Nanomaterials Optoelectronics Laboratory Polymer Program Institute of Materials Science Storrs CT 06269 United States

Based on electron-beam direct writing on the SiOx/Si substrates, favorable absorption sites for ferric cations (Fe3+ ions) were created on the surface oxide layer. This allowed Fe3+-assisted self-assembled arrays of single-wall carbon nanotube (SWNT) probes to be produced. Auger investigation indicated that the incident energetic electrons depleted oxygen, creating more dangling bonds around Si atoms at the surface of the SiOx layer. This resulted in a distinct difference in the friction forces from unexposed regions as measured by lateral force microscopy (LFM). Atomic force microscopy (AFM) affirmed that the irradiated domains absorbed considerably more Fe3+ ions upon immersion into pH 2.2 aqueous FeCl3 solution. This rendered a greater yield of FeO(OH)/FeOCl precipitates, primarily FeO(OH), upon subsequent washing with lightly basic dimethylformamide (DMF) solution. Such selective metal-functionalization established the basis for the subsequent patterned forest-assembly of SWNTs as demonstrated by resonance Raman spectroscopy. © 2008 Elsevier B.V. All rights reserved.

关键词： Chlorine compounds

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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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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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Performance of atrial conduction velocity algorithms with error-prone clinical measurements for the identification of atrial fibrosis

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Computers in Biology and Medicine 2025年 191卷 110119-110119页

作者： Gharaviri, Ali Vigneswaran, Vinush Vickneson, Keeran Roney, Caroline Corrado, Cesare Coveney, Sam Maciunas, Kestutis Bodagh, Neil Klis, Magda Kotadia, Irum Sim, Iain Whitaker, John Bishop, Martin Niederer, Steven O'Neill, Mark Williams, Steven E. Centre for Cardiovascular Science The University of Edinburgh United Kingdom School of Biomedical Engineering and Imaging Sciences King's College London United Kingdom School of Engineering and Materials Science Queen Mary University of London United Kingdom National Heart & Lung Institute - Faculty of Medicine Imperial College London United Kingdom Heart Rhythm Research Brussels Postgraduate Program in Cardiac Electrophysiology and Pacing Vrije Universiteit Brussel Brussels Belgium Heart Rhythm Management Centre Universitair Ziekenhuis Brussel Brussels Belgium Brussels1050 Belgium

Introduction: Measuring conduction velocity, as a direct consequence of fibrosis, may provide a better method to localise fibrotic regions. This study aims to assess established cardiac conduction velocity calculation methods (Triangulation, Polynomial Surface Fitting, and Radial Basis Function) in identifying areas of conduction slowing caused by fibrosis, considering realistic measurement errors. Method: Using a human left atrium computational model, atrial activation was simulated. Each conduction velocity calculation method's performance was evaluated under uncertainties in mapping point density, local activation time assignment and electrode locations by comparing calculated conduction velocity to ground truth conduction velocity derived from high-resolution simulated atrial activation. Results: All methods agreed well with ground truth conduction velocity maps in noise-free, high-density sampling conditions. However, Triangulation and Polynomial Surface Fitting methods showed susceptibility to noise, exhibiting significant errors under moderate to high noise levels. Radial Basis Function method demonstrated greater robustness to noise and reduced sampling density. Fibrotic region identification accuracy was high under ideal conditions for all methods but declined with increasing noise, with the Radial Basis Function method maintaining superior performance. Conclusion: While all methods accurately estimate conduction velocity under ideal conditions, the Radial Basis Function method shows robustness to a realistic clinical noise, hence making it the most suitable to identify fibrotic regions. © 2025

关键词： Triangulation

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THERMODYNAMIC ANALYSIS OF THE IN-GA-SB SYSTEM

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METALLURGICAL AND materials TRANSACTIONS A-PHYSICAL METALLURGY AND materials science 1994年第11期25卷 2331-2340页

作者： YU, TC BREBRICK, RF 1. Materials Science and Engineering Program College of Engineering Marquette University 53233 Milwaukee WI

The phase diagram and thermodynamic data for the In-Ga-Sb system are fit with a model for the LII-V liquid phases, in which the enthalpy and excess entropy of mixing are quartic functions of the atomic fraction and the enthalpy of mixing is a quadratic function of temperature. The Gibbs energy, enthalpy, and entropy of formation of the LII-V compounds are obtained as functions of temperature from the heat capacities and the standard enthalpy and entropy of formation at 298 K. The fits are quantitatively satisfactory and better than any hitherto obtained, particularly for the m-V liquidus lines and the ternary liquid. The partial pressures of Sb, and Sb-4 are calculated along the three phase curves of In1-uGauSb(s), and relations given to obtain the relative chemical potentials of In and/or Ga are from these. The enthalpy of mixing of the m-v liquids is calculated for a few hundred degrees above the compound melting points, where presently there are no data. Characteristics of an improved model are postulated.

关键词： Blending Thermodynamics Mixing Formation entropy formation entropy Quadratics THREE-PHASE function of temperature Phase diagrams Enthalpy Heat capacity Function

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