JOURNAL OF ALLOYS AND COMPOUNDS
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2025
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IF 6.3
Jiyuan Cong,Yusha Lan,Jianglin Hu,Gang Chen,Chengjun Dong,Hongtao Guan
The nitrogen–doped porous carbon (NPC) foam composites modified by magnetic nanoparticles exhibit lightweight properties and excellent impedance matching, making them highly valuable for research and applications in electromagnetic wave shielding and absorption. The present work focuses on binary Co/Ni–MOF as the subject, combining it with carbon foam by adjusting the Co/Ni ratio to obtain various MOF derivatives, thereby exploring their electromagnetic properties. The composite CoNi-2/NPC, yielded through calcinating the precursor CoNi-2/HMT (Co: Ni = 1: 1) at 500 °C, demonstrates excellent wave absorption performance with a low filler content of 15 wt%, achieving a minimum reflection loss of –52.7 dB and an effective absorption bandwidth of 7.36 GHz. The radar cross section (RCS) simulation reveals an RCS reduction of 22.8 dB m² for CoNi-2/NPC. The excellent electromagnetic absorption can be ascribed to the increased interfacial polarization, the improved impedance matching, and defect-induced polarization loss. The present research offers a novel perspective for the design of high–performance electromagnetic absorbing materials featuring a broad absorption bandwidth through controlling their magnetic components.
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POWDER TECHNOLOGY
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2025
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IF 4.6
Zheng Ren,Pengpeng Yang,Jinqiu Fu,Mengdan Zhu,Keke Zhang
Glycyl-L-valine (GLV) is a potentially biologically active dipeptide composed of glycine and L-valine, which exhibits diverse antioxidant, anti-inflammatory, and cytoprotective properties. GLV crystals typically form needles and flakes, morphologies that may negatively impact dissolution rate, flowability, filtration, and formulation processes. For the first time, this study reports the successful preparation of spherical crystal of GLV. Spherical crystals with superior filtration efficiency, powder flowability, and bulk density were obtained in tetrahydrofuran (THF) and dioxane. The formation mechanism of GLV spherical crystals in THF was revealed: solvent-induced crystalline defects trigger non-crystallographic branching, enabling further growth into spherulites. The results demonstrate that solvent-induced non-crystallographic branching produces GLV spherical crystals with improved bulk density, flowability, compactibility, and humidity stability. The formation of GLV spherulites is governed by the synergistic interplay of intermolecular hydrogen bonding and hydrophobic interactions, establishing this system as an ideal model for elucidating non-classical crystallization pathways in short peptides. These findings provide a robust theoretical framework for the rational design of novel biomaterials.
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Biosensors-Basel
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2025
·Vol. 15
·期 10
·703
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IF 5.6
Harriet Sonia Nalumansi,Fuwei Pi,Jingkun Li,Guoyong Jiang
The detection of volatile organic compounds (VOCs) is critical for ensuring food safety, particularly for identifying spoilage gases and food adulterants. Surface Enhanced Raman Spectroscopy (SERS) has traditionally relied on noble metals such as gold and silver for strong electromagnetic enhancement. However, these substrates present challenges in terms of cost, stability, and integration into real-world applications. In this study, we explore a hybrid metal–organic framework (MOF) with reduced graphene oxide (rGO) as a SERS active substrate. The developed material showed a good sensitivity for VOC formaldehyde (FA), easily detectable at peak 1452 cm−1and offering an RSD of 16.95%. Since the substrate did not rely on any noble metals for SERS enhancement, this low cost and easy material could be fine-tuned, creating alternative less-toxic materials for detection in industries such as food safety.
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Applied Materials Today
·
2025
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IF 6.9
Jun Zeng,Tao Jia,Tong Chen,Huilin Liu,Zhaojie Sun,Xiaoyong Huang,Yunfei Shang,Shuwei Hao,Chunhui Yang
Cancer phototheranostics has emerged as a cornerstone of personalized precision medicine to achieve efficient and targeted tumor treatment. Upconversion nanoparticles (UCNPs)-mediated phototheranostics exhibited remarkable potential for imaging diagnostics and therapeutic applications. Nevertheless, integrating programmable photoactivation functions of imaging and therapy within a single UCNP with negligible phototoxicity remains a huge challenge, primarily due to the absence of precise photoswitching strategies. Herein, a pulse-responsive upconversion nanoagent (UCNA) is designed to enable imaging-guided precision phototherapy through tunable red/green emissions. The UCNA is constructed based on a UCNPs@mSiO 2 core–shell structure conjugated with photosensitizer (neutral red) and drug (curcumin), and gated by a β-cyclodextrin-adamantane (β-CD-AD) host–guest supramolecular complex. The red emission is utilized for determining the tumor area through fluorescence imaging under 980 nm laser irradiation with a long pulse width (LPW). By switching the laser duty cycle into a short pulse width (SPW) mode, the resultant green emission can active photosensitizer to produce cytotoxic singlet oxygen ( 1 O 2 ), and simultaneously trigger drug release for antitumor therapy. The results demonstrate the attractive performance of UCNP-mediated deep-tissue imaging and enhanced anti-tumor efficacy without obvious systemic toxicity. In general, this work provides a facile approach for tuning upconversion emission, thereby realizing the photoswitchable activation of imaging diagnostics and photodynamic therapeutics.
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CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Yiyang Kang,Yan Jiao,Han Song,Yinuo Wan,Hao Ning,Lixia Bao,Weibo Kong,Jiliang Wang
In nature, many plants and animals like aloe vera and snail rely on secreted mucus containing abundant hydrophilic polysaccharides, protein, and metal ions to maintain surface wettability and antibacterial properties. Inspired by this natural design, a biomimetic superhydrophilic polysaccharide based on lactic acid and maltotetraose, named PLM, was developed. Zinc acetate was introduced to construct a physical crosslinked network through the complexation between Zn 2+ and oxygen atoms, accompanied by an antibacterial effect on Escherichia coli and Staphylococcus aureus . PLM not only shows good spinnability, evidenced by a porous film with superior water absorption ability, but also can be used as a superhydrophilic coating on various substrates (e.g., polyethylene), with a minimal water contact angle of 5.68°. The strong affinity of PLM for water molecules that has been validated by Raman spectra and molecular dynamics simulations, along with nanoscale roughness, imparts great anti-fogging and anti-oil-fouling properties to coatings. Even after repeated heating-cooling cycles, tape adhesion, or mechanical friction, PLM coatings still present durable hydrophilicity, derived from the improved PLM intermolecular force and the adhesion of PLM to substrates by the dynamic crosslinked structure. The three-in-one multifunctional PLM reveals wide applicability and practicality in the fields of green coatings and films.
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JOURNAL OF NANOBIOTECHNOLOGY
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2025
·Vol. 23
·期 1
·1-16
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IF 12.6
Yang Deqi,Zhang Ya,Yuan Yun,Peng Beibei,Wang Bingfang,Ren Qinjuan,Chang Zhiqiang,Liu Shuai,Fang Yin
Remote modulation of specific neurons is critical for neural circuit dissection and neurological disease therapy. Traditional neuromodulation strategies applying electrodes and external stimuli may suffer from invasive injuries and insufficient spatiotemporal resolution, respectively. Herein, transcranial optical neuromodulation with precise spatiotemporal control was realized by establishing a nanophotonic neural interface, where the polyethylene glycol-modified two-dimensional Ti 3 C 2 T x (MXene) served as near-infrared (NIR) photoactive nanosheets (PANS). Polymer modification of the nanosheets contributed to a robust PANS-neuron interface, which allowed efficient modulation of non-transgenic neurons with subcellular resolution and millisecond precision. The PANS-enabled transcranial optical neuromodulation not only evoked neuronal action potentials in brain slices with a high synchronization rate of 98.33%, but also facilitated neuronal firing in vivo. With PANS as stimulus targets, the transcranial NIR light can excite neurons in desired brain regions and activate defined neural circuits, thus regulating mouse behaviors with minimal invasiveness. Such nanosheet-enabled transcranial and precise optical neuromodulation, eliminating invasive implants and genetic manipulation, may open opportunities for neurophotonics and neuroscience research. Transcranial optical neuromodulation with precise spatiotemporal control was realized via a nano-enabled optical neural interface, where the polyethylene glycol-modified two-dimensional Ti 3 C 2 T x serves as near-infrared photoactive nanosheets. Such efficient neuromodulation of non-transgenic animals with subcellular resolution and millisecond precision, eliminating invasive implants and genetic manipulation, holds potential for neuroscience research. Graphical abstract
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AQUATIC TOXICOLOGY
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2025
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IF 4.3
Xue Yang,Qiwei Zhang,Lihua Yang
The subchronic cardiotoxicity of 2,6-dichloro-1,4-benzoquinone (2,6-DCBQ), an unregulated disinfection byproduct with high environmental detection rates, remains poorly characterized. Using integrated multi-omics (transcriptomics, proteomics, phosphoproteomics) and histopathological analyses in zebrafish, this study systematically elucidated its dose-dependent (low-dose, 10 nM; medium-dose, 100 nM; high-dose, 1000 nM) cardiotoxicity, from adaptive remodeling to failure, over a 35-day exposure period. A reduction in atrioventricular inflow ranging from 81.4 % to 93.9 %, along with lipid droplet accumulation and Z-disc rupture, indicate a dose-dependent cardiac crisis induced by 2,6-DCBQ. Multi-omics analyses, revealed that the kinase cascade involving braf (Myhpc2_T1545), camk2a (Mybpc3_S291), and mark3b (Ttn.1_S28131) arranged dose-dependent cytoskeletal remodeling. High-dose exposure initiated an inflammation-cytoskeleton vicious cycle, wherein chemokine-driven collagen degradation exacerbated Z-disc rupture, while lipotoxic lipid droplets recruit inflammatory infiltrates, collectively escalating irreversible cardiac decompensation. These findings demonstrate that subchronic exposure to 2,6-DCBQ initiates cardiac remodeling, escalating cardiovascular susceptibility in exposed populations.
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FOOD CHEMISTRY
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2025
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IF 9.8
Guoli Chang,Fei Zhang,Zihan Qin,Wenyan Hong,Degui He,Haixia Lu,Junli Zhu
Zhejiang rosy vinegar (ZRV), a popular condiment in southeastern China, has a flavor profile and bioactivity that are not yet fully understood. This study aimed to determine the flavor characteristics and functional properties of ZRV from different regions. Sensory evaluation and electronic nose analysis revealed regional flavor variations. GC–MS identified 80 volatile compounds, while GC-IMS detected 22 volatile compounds. OPLS-DA models identified 17 GC–MS and 8 GC-IMS biomarkers, predominantly including 9 esters, 4 alcohols, and 4 aldehydes. Based on the analysis of odor activity values, five characteristic flavors in ZRV were identified, including acetic acid, benzaldehyde, 3-methylbutyl acetate, phenethyl acetate, and 2,4,5-trimethyl-1,3-dioxolane. Non-volatile compounds such as polyphenols, flavonoids, tartaric acid, and amino acids (isoleucine, valine, and proline) significantly enhanced antioxidant activity. The research establishes a theoretical framework for improving ZRV quality control and brand identity by mapping regional flavor signatures and bioactive components.
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Journal of Energy Storage
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2025
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IF 9.8
Jianchi Wang,Xusheng Cheng,Liwei Wang
All-soluble all-iron redox flow batteries (RFBs) are among the most promising energy storage technologies due to their low cost, dendrite-free operation, and decoupled capacity and power. In particular, the Fe(TEA) 3+/2+ redox couple has attracted significant attention owing to its appropriate redox potential, fast kinetics, and excellent reversibility. However, the instability of Fe(TEA) chelates, caused by the competitive adsorption of free TEA ligands, remains a major challenge that limits cycling stability and energy efficiency. Herein, we propose a green and efficient strategy to fabricate Nitrogen-doped graphite felt (N@GF) as the anode for the Fe(TEA)-based system and identify the optimal doping concentration. The abundant nitrogen-containing functional groups endow the felt with synergistic electronic modulation and surface coordination capabilities, enabling selective Fe(TEA) complexation while suppressing the undesired adsorption of free TEA ligands by occupying the limited active sites. This tailored interfacial regulation stabilizes Fe(TEA) complexes and enhances charge-transfer efficiency. As a result, the battery employing 5 %N@GF as the anode operates stably for over 950 deep charge–discharge cycles (near 260 h) at 80 mA cm −2 , exhibits significantly reduced polarization compared to pristine GF, achieves a peak energy efficiency above 78 % and a capacity utilization exceeding 83 %. This work offers an eco-friendly and effective material design strategy for improving both the energy efficiency and cycle life of all-soluble all-iron redox flow batteries.
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Journal of Energy Storage
·
2025
·
IF 9.8
Shi Jia Li,Guang Tao Fei,Shao Hui Xu,Yi Song Liao,Xin Xin Gong,Xin Feng Li,Hao Miao Ouyang
In this study, ZnO quantum dots (QDs) and urea are concurrently incorporated into a polyethylene oxide (PEO)-based solid-state electrolyte via a solution casting method. The ZnO QDs effectively diminish the crystalline regions of PEO, while urea establishes an extensive hydrogen-bonded network within the electrolyte. The hydrogen-bonded network not only mitigates the strong coordination between PEO and Li + , but also enhances the mechanical properties of the electrolyte. Based on this, the solid-state electrolyte and its corresponding batteries exhibit remarkable electrochemical performance. At 60 °C, the solid-state electrolyte exhibits an ionic conductivity of 2.54 mS cm −1 . The Li//Li battery demonstrates stable cycling performance over 1900 h, whereas the LiFePO 4 //Li battery maintains cycle stability for 2000 cycles. Furthermore, the LiFePO 4 //Li battery can operate stably at 45 °C, exhibiting excellent electrochemical performance.
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Journal of Future Foods
·
2025
·
IF 7.2
Zhen Liu,Yu-mei Zhai,Wen-zhu Guo,Lu Chang,Chong Yu,Sheng-Ming Lei,Yun-Guo Liu
Ultra-high-performance liquid chromatography-quadrupole-time-of-flight mass spectrometry (UPLC-Q-TOF-MS/MS) was used to detect the metabolites during the withering process of rose white tea to find out the differential metabolites, and headspace solid-phase microextraction–gas chromatography–mass spectroscopy (HS–SPME–GC–MS) was used to detect flavor compounds during the withering process of rose white tea and identify characteristic aroma compounds. By studying the flavor characteristics during the withering process, the reasons for the formation of the aroma of rose white tea can be revealed, providing a theoretical basis for the development of new tea products. There was a significant positive correlation (p<0.05) between total flavonoids and benzoids, organoheterocyclic compounds. The contents of compounds such as linalool, trans-cinnamic acid, L-phenylalanine, tyramine, indole-3-acrylic acid, and valine gradually rose during withering, yet declined subsequent to drying. The moisture content, total phenol content, and hydroxyl radical scavenging activity showed a negative correlation with the withering time. GC-MS results showed that 148 flavor compounds were identified in rose white tea, with linalool, citronellol, geraniol, phenylethanol, citral, phenylacetate, and methyl eugenol identified as the main contributors to the aroma characteristics of rose white tea. Citronellyl acetate and 2-undecanone were characteristic aroma compounds during the rose withering stages (WT0-WT48). The concentrations of citronellyl acetate exhibited an initial increase followed by a subsequent decline (WT0: 2.347mg/kg; WT12: 2.455mg/kg; WT24: 3.646mg/kg; WT36: 3.176mg/kg; WT48: 1.217mg/kg;). Phenylacetaldehyde and cyclotridecanone were unique aroma compounds found in dried rose white tea (HAD).
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Jiamei Liu,Jian Zhao,Zhenyan Lu,Guichao Tian,Hong Zhang,Chao Jia,Meifang Zhu
The inherent hydrophilicity of cotton fabrics (CFs) limits their application in advanced functional textiles. Superhydrophobic surface modification has emerged as an effective strategy to impart functionalities such as self-cleaning and oil-water separation. Here, a two-step surface modification approach—combining graft condensation with free radical copolymerization—is developed to fabricate superhydrophobic CFs. The resulting fabrics exhibit a high water contact angle of 163° and a low sliding angle of 7°, indicating excellent surface hydrophobicity. The hydrophobic layer demonstrates exceptional mechanical robustness and chemical stability, maintaining a contact angle above 144° after 150 abrasion and 30 washing cycles. Furthermore, the hydrophobicity remains stable (contact angle >150°) under harsh conditions, including exposure to organic solvents, UV irradiation, elevated temperatures, and acidic/alkaline environments. The modified CFs also exhibit excellent self-cleaning performance and maintain oil-water separation efficiency exceeding 98 % after 20 cycles. These results highlight the potential of the developed modified CFs for applications in outdoor gear, anti-fouling textiles, and marine oil spill remediation.
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