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Effect of graphene quantum dot concentration on p-toluenesulfonic acid-doped polyaniline–graphene quantum dot nanocomposites: chemical, optical, and electrical characterization for benzo[def]phenanthrene detection

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Optical and Quantum Electronics 2025年第4期57卷 1-33页

作者： Beygisangchin, Mahnoush Jakmunee, Jaroon Rashid, Suraya Abdul Shafie, Suhaidi Saetang, Songpon Research Laboratory for Analytical Instrument and Electrochemistry Innovation Department of Chemistry Faculty of Science Chiang Mai University Chiang Mai50200 Thailand Research Laboratory On Advanced Materials for Sensor and Biosensor Innovation Materials Science Research Center and Center of Excellence for Innovation in Chemistry Faculty of Science Chiang Mai University Chiang Mai50200 Thailand Nanomaterials Processing and Technology Laboratory Institute of Nanoscience and Nanotechnology Universiti Putra Malaysia Serdang43400 Malaysia Faculty of Engineering Universiti Putra Malaysia Serdang43400 Malaysia

Monitoring of benzo[def]phenanthrene as a toxic component is essential for environmental assessment because of its adverse impact on human health and ecological systems. P-Toluenesulfonic acid-doped polyaniline (PANI) and PANI-graphene quantum dot (PANI-GQD) nanocomposites were fabricated by incorporating graphene quantum dot (GQD) concentrations between 100 and 500 ppm through oxidative chemical polymerization of aniline under acidic conditions at ambient temperature. The materials were analysed using Fourier transform infrared (FT-IR), field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), thermogravimetry analysis (TGA), UV–visible and photoluminescence (PL) spectroscopy, and electrical conductivity measurements. Key findings included significant shifts in FT-IR peaks (C=N stretching from 1651 to 1694 cm⁻1) and an increase in the AB/AP ratio from 0.27 to 0.333, indicating enhanced sp2 hybridization and improved electrical conductivity. XRD analysis showed improved molecular ordering in PANI-GQD nanocomposites. FE-SEM revealed changes in morphology from flat layers to spherical and flaky mixtures with increasing GQD concentrations. Film thickness increased from 13.52 μm (PANI-GQD-1) to 30.07 μm (PANI-GQD-5). The PANI-GQD-3 nanocomposite exhibited the lowest bandgap (2.39 eV) and the highest PL intensity because of enhanced energy transfer between PANI and GQD. Electrical conductivity decreased with increasing GQD concentration, with PANI-GQD-5 showing 2.17 (Ω cm)–1. PANI-GQD-3 successfully detected benzo[def]phenanthrene at concentrations ranging from 0.001 mol L⁻1 to 10 × 10⁻⁹ mol L⁻1 with a limit of detection of 1.5 × 10⁻⁹ mol L⁻1 through gas chromatography. Results demonstrated the potential of PANI-GQD nanocomposites for sensor and biosensor applications. © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2025.

关键词： Thermogravimetric analysis

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Medium-assisted scalable printing of LIPSS via femtosecond laser projection manufacturing

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Optics Letters 2025年第3期50卷 844-847页

作者： Fu, Yanzhe Li, Naitao Ding, Xiang Huang, Mingming Wu, Han Zhang, Weifeng Lin, Longxin Li, Jiebo Ministry of Education Institute of Medical Photonics Beijing Advanced Innovation Center for Biomedical Engineering School of Biological Science and Medical Engineering Beihang University Beijing100191 China Center for Medical Metrology National Institute of Metrology Beijing100029 China Peking University School Hospital of Stomatology National Center for Stomatology National Clinical Research Center for Oral Diseases National Engineering Research Center of Oral Biomaterials and Digital Medical Devices Beijing Key Laboratory of Digital Stomatology NHC Key Laboratory of Digital Stomatology NMPA Key Laboratory for Dental Materials Beijing100081 China Intelligent Sensor Network Engineering Research Center of Hebei Province Faculty of Information Engineering Hebei GEO University Shijiazhuang050031 China

Femtosecond laser has been widely applied for manufacturing micro-/nanostructures in micro-optics, microelectronics, and biomedical engineering. However, tight focusing remains restricted by efficiency, and large-field scanning with a scanning mirror sacrifices precision. In this paper, we proposed a medium-assisted femtosecond laser projection manufacturing (MA-FPM) approach, which enables the fabrication of controllable patterns that incorporate 115 nm periodic laser-induced periodic surface structures (LIPSS). We demonstrated the capability of this technology in fabricating different patterns and pattern arrays. Additionally, we illustrated the application of the micro-nanostructures in plasmon enhancement through Raman spectroscopy. The MA-FPM technique holds promise for metasurface, biosensing, label-free microscopy, and tissue engineering. © 2025 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.

关键词： Tissue engineering

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Intestinal mucosal transcriptomic responses of Asian seabass (Lates calcarifer) vaccinated with an oral hydrogel-encapsulated multivalent Vibrio antigen following Vibrio spp. infection

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Comparative Biochemistry and Physiology - Part D: Genomics and Proteomics 2025年 55卷 101512页

作者： Kumwan, Benchawan Meachasompop, Pakapon Thompson, Kim D. Thangsunan, Pattanapong Buncharoen, Wararut Thangsunan, Patcharapong Srisapoome, Prapansak Uchuwittayakul, Anurak Special Research Incubator Unit for Development and Application of Vaccine Delivery Systems for Aquatic Animals Department of Aquaculture Faculty of Fisheries Kasetsart University Bangkok 10900 Thailand Laboratory of Aquatic Animal Health Management Department of Aquaculture Faculty of Fisheries Kasetsart University Bangkok 10900 Thailand Center of Excellence in Aquatic Animal Health Management Faculty of Fisheries Kasetsart University Bangkok 10900 Thailand Moredun Research Institute Pentlands Science Park Penicuik EH26 0PZ United Kingdom Division of Biochemistry and Biochemical Innovation Department of Chemistry Faculty of Science Chiang Mai University Chiang Mai 50200 Thailand Center of Excellence for Innovation in Chemistry and Research Laboratory on Advanced Materials for Sensor and Biosensor Innovation Material Science Research Center Faculty of Science Chiang Mai University Chiang Mai 50200 Thailand Department of Biology Faculty of Science Chiang Mai University Chiang Mai 50200 Thailand Office of Research Administration Chiang Mai University Chiang Mai 50200 Thailand

This study examined the intestinal mucosal immune responses elicited by an oral hydrogel-encapsulated multivalent Vibrio vaccine in Asian seabass (Lates calcarifer) to protect against vibriosis caused by Vibrio harveyi, V. vulnificus, and Photobacterium damselae (formerly Vibrio damsela). Both 7-day and 14-day oral vaccination regimens effectively enhanced innate and adaptive immune responses while supporting gut recovery post-infection. Transcriptomic analyses of intestines from fish that received consecutive 7- and 14-day vaccination regimens, followed by co-infection with multistrain Vibrio spp., revealed significant upregulation of innate and specific immune markers at week 8 post-vaccination. These responses were further bolstered by a strong adaptive immune activation, characterized by T-cell and B-cell receptor signaling as well as antibody production. In addition, the vaccine also demonstrated cross-protective immunomodulatory effects, evidenced by elevated interferon-related pathways (e.g., IFNAR2 and IFN-induced proteins), suggesting its potential to protect against co-infecting pathogens, a critical advantage in aquaculture systems facing diverse pathogen pressures. Beyond immune activation, the involvement proteins of TGF-β family members, including BMP3 and BMP4, highlights the vaccine's role in tissue repair and remodeling. These responses likely mitigate epithelial damage and preserve gut barrier integrity post-infection, showcasing the dual benefits of immunoprotection and post-infection recovery. The findings highlight the oral hydrogel-encapsulated multivalent Vibrio vaccine's ability to enhance immunity against specific bacterial pathogens while offering broader immunomodulatory and tissue-repair benefits. Its cross-protective and recovery-supporting properties make it a promising solution for sustainable aquaculture practices, effectively addressing pathogen control and boosting host resilience. © 2025 Elsevier Inc.

关键词： Hydrogel Intestinal mucosal immunity Lates calcarifer Oral vaccine P. damselae Transcriptome V. harveyi V. vulnificus Vibriosis

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Evaluation of immune responses and protection in Asian seabass (Lates calcarifer Bloch, 1790) against Vibrio vulnificus using immersion and oral nanoemulsion vaccines

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Fish and Shellfish Immunology 2025年 162卷 110354页

作者： Rodwihok, Chatchai Thompson, Kim D. Srisapoome, Prapansak Thangsunan, Patcharapong Thangsunan, Pattanapong Buncharoen, Wararut Saenphet, Kanokporn Saenphet, Supap Meachasompop, Pakapon Kumwan, Benchawan Tangal, Jasper Kit Wiratama, Nugroho Mai, Thao Thu Uchuwittayakul, Anurak Special Research Incubator Unit for Development and Application of Vaccine Delivery Systems for Aquatic Animals Department of Aquaculture Faculty of Fisheries Kasetsart University Bangkok 10900 Thailand Laboratory of Aquatic Animal Health Management Department of Aquaculture Faculty of Fisheries Kasetsart University Bangkok 10900 Thailand Center of Excellence in Aquatic Animal Health Management Faculty of Fisheries Kasetsart University Bangkok 10900 Thailand Moredun Research Institute Pentlands Science Park Penicuik EH26 0PZ United Kingdom Division of Biochemistry and Biochemical Innovation Department of Chemistry Faculty of Science Chiang Mai University Chiang Mai 50200 Thailand Office of Research Administration Chiang Mai University Chiang Mai 50200 Thailand Center of Excellence for Innovation in Chemistry and Research Laboratory on Advanced Materials for Sensor and Biosensor Innovation Material Science Research Center Faculty of Science Chiang Mai University Chiang Mai 50200 Thailand Department of Biology Faculty of Science Chiang Mai University Chiang Mai 50200 Thailand

Vaccination is an important strategy in aquaculture for enhancing disease resistance and ensuring the health and productivity of cultured fish. This study investigated the distinct systemic and mucosal immune responses elicited by immersion (ImV) and oral (OrV) nanoemulsion vaccines encapsulating Vibrio vulnificus in Asian seabass (Lates calcarifer). Two vaccination methods, ImV and OrV, were administered to separate groups of Asian seabass, followed by challenges with V. vulnificus via immersion and intraperitoneal (i.p.) injection administration. Immune responses were assessed by measuring specific IgM antibodies, lysozyme activity, bactericidal activity, and immune-related gene expression across multiple organs, including serum, head kidney, liver, gills, skin, and intestine. The results demonstrate that the OrV group had a significantly increased level of specific IgM antibody in their serum, head kidney and liver compared to the immersion vaccine group and control, with the OrV group maintaining higher antibody levels post-immersion and injection challenge. In mucosal tissues, the ImV group elicited stronger IgM responses in the gills and skin, whereas the OrV group enhanced antibody responses in the liver and intestine. Lysozyme and bactericidal activities varied by organ and vaccination route, indicating differential activation of innate immune defenses. Additionally, immune-related gene expression was upregulated in a tissue-specific manner, reflecting the targeted activation of adaptive and innate immune mechanisms by each vaccine type. Both vaccination strategies significantly improved survival and relative percent survival (RPS), with ImV offering stronger protection against immersion challenges, while OrV provided strong protection in systemic (injection) challenges. These findings suggest that ImV and OrV groups induced distinct immune responses in Asian seabass, with immersion vaccination primarily enhancing mucosal immunity at barrier surfaces and ora

关键词： Aquaculture Asian seabass Immersion vaccine Immune response Mucosal immunity Oral nanoemulsion vaccine Systemic immunity Vibrio vulnificus

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Gate Tunable Labyrinth Domain Structures in a van der Waals Itinerant Ferromagnet Cr_(7)Te_(8)

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Chinese Physics Letters 2024年第9期41卷 122-132页

作者： Kui Meng Zeya Li Yicheng Shen Xiangyu Bi Junhao Rao Yuting Qian Zhansheng Gao Peng Chen Caiyu Qiu Feng Qin Jinxiong Wu Feng Luo Junwei Huang Hongtao Yuan National Laboratory of Solid State Microstructures Jiangsu Key Laboratory of Artificial Functional MaterialsCollege of Engineering and Applied Sciencesand Collaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210000China Center for the Physics of Low-Dimensional Materials Henan Joint International Research Laboratory of New Energy Materials and DevicesSchool of Physics and ElectronicsHenan UniversityKaifeng 475004China Tianjin Key Lab for Rare Earth Materials and Applications Center for Rare Earth and Inorganic Functional MaterialsSmart Sensor Interdisciplinary Science CenterSchool of Materials Science and EngineeringNankai UniversityTianjin 300350China

Manipulating magnetic domain structure plays a key role in advanced spintronics *** rationale is that the labyrinthine domain structure,normally appearing in ferromagnetic thin films with strong magnetic anisotropy,shows a great potential to increase data storage density for designing magnetic nonvolatile memory and logic ***,an electrical control of labyrinthine domain structure remains ***,we demonstrate the gate-driven evolution of labyrinthine domain structures in an itinerant ferromagnet Cr_(7)Te_(8).By combining electric transport measurements and micromagnetic finite difference simulations,we find that the hysteresis loop of anomalous Hall effect in Cr_(7)Te_(8)samples shows distinct features corresponding to the generation of labyrinthine domain *** labyrinthine domain structures are found to be electrically tunable via Li-electrolyte gating,and such gate-driven evolution in Cr_(7)Te_(8)originates from the reduction of the magnetic anisotropic energy with gating,revealed by our micromagnetic *** results on the gate control of anomalous Hall effect in an itinerant magnetic material provide an opportunity to understand the formation and evolution of labyrinthine domain structures,paving a new route towards electric-field driven spintronics.

关键词： rational electrolyte ferromagnetic

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Manipulating Zr/Ti ratio based on phase diagram for large electrocaloric effects with multiple target operation temperatures in PLZT ceramics

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Journal of advanced Ceramics 2024年第9期13卷 1422-1431页

作者： Junjie Li Ruowei Yin Zhe Xiong Yizheng Bao Xing Zhang Wenjuan Wu Lezhong Li Yang Bai Sichuan Province Key Laboratory of Information Materials and Devices Application College of Optoelectronic Engineeringand Chengdu IC Valley Industrial CollegeChengdu University of Information TechnologyChengdu 610225China Beijing Advanced Innovation Center for Materials Genome Engineering and Institute for Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing 100083China Chengdu Hongming Electronics Co. Ltd.Chengdu 610199China Key Laboratory of Inorganic Functional Materials and Devices Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 201800China Sichuan Meteorological Optoelectronic Sensor Technology and Application Engineering Research Center Chengdu University of Information TechnologyChengdu 610225China

Ferroelectric phase transition has been identified as a promising avenue for designing high-performanceelectrocaloric materials for zero-emission and solid-state refrigeration. However, extensive research has been limited todeveloping ferroelectric materials with large electrocaloric effects near room temperature, preventing them from meetingdiverse refrigeration requirements. In this study, by leveraging the room-temperature phase diagram of the (PbLa)(ZrTi)O_(3)solution, we prepared a series of Pb_(0.775)La_(0.15)Zr_(x)Ti_(1−x)O_(3) bulk ceramics spanning the ferroelectric and relaxor ferroelectricphase regions. This enabled the attainment of various phase transition features and temperatures. Finally, largeelectrocaloric effects, coupled with adjustable operation temperatures ranging from 150 to −45℃, are successfullyachieved through manipulation of the Zr/Ti ratio. This comprehensive range of operation temperatures effectively addressesdiverse refrigeration application requirements, ranging from industrial equipment to freezer cabinets. This work not onlyunderscores the expansion of the electrocaloric refrigeration application domain but also proposes a material designstrategy tailored to meet these evolving demands.

关键词： electrocaloric effect phase transition phase diagram ferroelectric ceramics

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Gate-tunable Berry curvature in van der Waals itinerant ferromagnetic Cr_(7)Te_(8)

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InfoMat 2024年第3期6卷 108-116页

作者： Kui Meng Zeya Li Zhansheng Gao Xiangyu Bi Peng Chen Feng Qin Caiyu Qiu Lingyun Xu Junwei Huang Jinxiong Wu Feng Luo Hongtao Yuan National Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced MicrostructuresCollege of Engineering and Applied SciencesJiangsu Key Laboratory of Artificial Functional MaterialsNanjing UniversityNanjingthe People's Republic of China Center for the Physics of Low-Dimensional Materials Henan Joint International Research Laboratory of New Energy Materials and DevicesSchool of Physics and ElectronicsHenan UniversityKaifengthe People's Republic of China Tianjin Key Lab for Rare Earth Materials and Applications Center for Rare Earth and Inorganic Functional MaterialsSmart Sensor Interdisciplinary Science CenterSchool of Materials Science and EngineeringNankai UniversityTianjinthe People's Republic of China

The anomalous Hall effect(AHE)that associated with the Berry curvature of occupied electronic states in momentum-space is one of the intriguing aspects in condensed matter physics,and provides an alternative for potential applications in topological *** experiments reported the tunable Berry curvature and the resulting magnetization switching process in the AHE based on strain engineering or chemical ***,the AHE modulation by these strategies are usually irreversible,making it difficult to realize switchable control of the AHE and the resultant spintronic ***,we demonstrated the switchable control of the Berry-curvature-related AHE by electrical gating in itinerant ferromagnetic Cr_(7)Te_(8)with excellent ambient *** gate-tunable sign reversal of the AHE can be attributed to the redistribution of the Berry curvature in the band structure of Cr_(7)Te_(8)due to the intercalation-induced change in the Fermi *** work facilitates the applications of magnetic switchable devices based on gate-tunable Berry curvature.

关键词： anomalous Hall effect Berry curvature van der Waals itinerant ferromagnetism

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Effect of Filler Content on Flexural and Viscoelastic Properties of Coir Fibers and Argania Nut-shells Reinforced Phenolic Resin Composites

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Journal of Bionic Engineering 2022年第6期19卷 1886-1898页

作者： Hala Bensalah Marya Raji Kamal Gueraoui Abdelazziz Khtira Hamid Essabir Rachid Bouhfid Abou el kacem Qaiss Group of Mechanics and Materials Energy Research CenterFaculty of ScienceMohammed V University in Rabat10100RabatMorocco Composites and Nanocomposites Center Moroccan Foundation for Advanced ScienceInnovation and Research(MAScIR)10100RabatMorocco Mohammed Ⅵ Polytechnic University Lot 660 Hay Moulay Rachid43150Ben GuerirMorocco Group of Simulation in Mechanics and Energy Energy Research CenterFaculty of ScienceMohammed Ⅴ University10100RabatMorocco Group of Semiconductors and Environmental Sensor Technologies Energy Research CenterFaculty of ScienceMohammed V University10100RabatMorocco Mechanic Materials and Composites(MMC) Laboratory of Energy EngineeringMaterials and SystemsNational School of Applied Sciences of AgadirIbn Zohr University80000AgadirMorocco

The characteristics of two different kinds of lignocellulosic materials(vegetable fillers)with two morphologies as Argania nut-shells(ANS)particles and Coir Fibers(CF)were used as reinforcement for phenolic resin(Bakelite)in this work,and the composite are studied as a function of filler types,shape,content(10,20,and 30%***)and manufacturing loading force(1500 and 3000 LBs).Compression molding was used to create the composites,which were then evaluated using Scanning electronic microscopy(SEM),Fourier-transform infrared spectroscopy(FTIR),bending,dynamic-mechanical-thermal and rheological *** morphology of broken samples demonstrates that both fillers are well dispersed and *** fillers are added to the matrix,the flexural characteristics improve,and the optimal values are attained in the case of Argania *** results showed that the kind and shape of the fillers had a direct influence on the dynamic mechanical characteristics of the composites due to the reinforcement's modulus *** was noticed that,the increment of manufacturing loading force decreased the mechanical and dynamical properties of *** optimum properties obtained indicate that the composites can only be manufactured at low manufacturing loading force(1500 LBs).

关键词： Phenolic resin composites Bionic materials Coir Fibers Argania nut-shells Dynamical mechanical properties Rheological properties

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Recent advances in the development of activatable multifunctional probes for in vivo imaging of caspase-3

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Chinese Chemical Letters 2021年第1期32卷 168-178页

作者： Pengzhan Wang Huocheng Yang Chang Liu Mingqiang Qiu Xin Ma Zhiqiang Mao Yao Sun Zhihong Liu Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules&College of Chemistry and Chemical EngineeringHubei UniversityWuhan 430062China State Key Laboratory of Pathogenesis Prevention and Treatment of High Incidence Diseases in Central AsiaXinjiang Medical UniversityXinjiang 830011China International Joint Research Center for Intelligent Biosensor Technology and Health Key Laboratory of Pesticides and Chemical BiologyMinistry of EducationCollege of ChemistryCentral China Normal UniversityWuhan 430079China State Key Laboratory of Elemento-Organic Chemistry Nankai UniversityTianjin 300071China

Caspases are a family of proteases that play critical roles in controlling inflammation and cell *** is a caspase-3 mainly controlled behavior to avoid inflammation and damage to surrounding cells,whereas anomalistic cell apoptosis may be associated with many *** detection and imaging of caspase-3 will be of great significance in evaluating the early therapeutic effect of *** smart fluorescent probes may be helpful for the visualization of the rapeutic effect compared with "always on" ***,more and more works toward activatable fluorescent probes for caspase-3 imaging have been *** addition,multifunctional probes have also been designed to further improve the imaging of ***,this review systematically summarized the representative wo rk of caspase-3 from the perspective of molecular design that it will play a guiding role in the design of probes that respond to ***,challenges and perspectives toward the field for imaging of cell apoptosis(caspase-3) are also discussed.

关键词： Fluorescence imaging Multi-functional Activatable probe Caspase-3

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电刺激在疼痛中的双重作用:从管理到重建（英文）

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Science Bulletin 2025年第7期 1016-1021页

作者：许克惠马雨轩叶涛王雨竹谢燕楠李朝慧 Franklin R.Tay 牛丽娜李舟焦凯 Department of Stomatology Tangdu Hospital State Key Laboratory of Oral&Maxillofacial Reconstruction and Regeneration School of StomatologyThe Fourth Military Medical University State Key Laboratory of Oral&Maxillofacial Reconstruction and Regeneration National Clinical Research Center for Oral DiseasesShaanxi Key Laboratory of StomatologyDepartment of ProsthodonticsSchool of StomatologyThe Fourth Military Medical University State Key Laboratory of Organic Electronics and Information Displays&Institute of Advanced Materials (IAM) Jiangsu Key Laboratory for BiosensorsJiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing University of Posts and Telecommunications Department of Clinical Medicine Shanghai Smartee Denti-Technology Co.Ltd. The Dental College of Georgia Augusta University School of Nanoscience and Technology University of Chinese Academy of Sciences CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro-Nano Energy and SensorBeijing Institute of Nanoenergy and NanosystemsChinese Academy of Sciences

Pain is a common sensory experience in our daily *** or recurrent pain affects over 30%of the global population,imposing a significant burden on individuals and ***,normal pain perception functions as a warning mechanism for the body and is essential for *** propagation of electrical signals is central to pain perception,and the capacity to modulate these signals is crucial for human pain ***,the applications for electrical stimulation in pain management are gradually expanding,offering patients innovative treatment ***,advancements in bionics have led to increased attention on reconstructing pain perception through artificial synapses,electronic skin,and ***,we focus on the dual role of electrical stimulation in both pain management and pain reconstruction,highlighting their shared developmental trends.

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