JOURNAL OF MATERIALS SCIENCE
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2025
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IF 3.9
Liu Aohua,Chen Jianhong,Wang Gang,Yu Feng,Peng Banghua
Zinc-air batteries (ZABs) are regarded as promising energy storage devices next-generation, but it is limited by their sluggish oxygen reduction/evolution reactions (ORR/OER). Therefore, it is highly necessary to explore inexpensive and more efficient transition metal based electrocatalyst for facilitating OER and ORR. Consequently, in this paper, transition metal phosphating compounds (Co 2 P 2 O 7 /FeP 2 @C) was synthesized by high-temperature treatment CoFe terephthalic acid chelating with phytic acid (PA). The resulting nanostructures of Co 2 P 2 O 7 /FeP 2 coated with P-doped carbon exhibit outstanding electrocatalytic performance, achieving OER overpotential of 405 mV at 10 mA cm −2 and an initial ORR potential of 0.83 V versus reversible hydrogen electrode. Meanwhile, the ZABs prepared by Co 2 P 2 O 7 /FeP 2 @C exhibited high specific capacity (817.76 mAh g −1 ) and long cycle stability (60 h). Here, the well-designed terephthalic acid unified with PA, not only produced phosphide at elevated temperatures, but also enhanced catalyst porosity caused by abundant hydroxyl groups in PA, potentially increased specific surface area. Additionally, PA introduced P-doped carbon matrix, which effectively modulated the carrier's electronic structure, introduced more defect as active sites and combined with porous structure to enhance the electrocatalytic effect. This work introduced an environmentally friendly method to synthesize transition metal phosphide on porous carbon matrix, and it is anticipated to find extensive applications in electrocatalysis. Graphical abstract
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ENVIRONMENTAL MONITORING AND ASSESSMENT
·
2025
·Vol. 198
·期 1
·18
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IF 3
Pan Xiaopeng,Luo Huili,Xiang Yuhang,Li Zekun,Zhao Jia
Bisphenol A (BPA) and its analogues are toxicants that can disrupt the endocrine system. They have been detected in the soil and agricultural products. Bisphenol substitutes (BPs) are distributed throughout the agricultural water system; however, the current status of these BPs entering the soil from irrigation is unclear. In this study, the association of BPA, bisphenol S (BPS), and bisphenol F (BPF) in vegetable soils with irrigation water samples was analyzed. Their accumulation, migration, and influencing factors were explored through simulated irrigation and adsorption tests. Significant correlations ( P < 0.01) were observed, indicating that irrigation water was an important source of BPs in soil. Compared with BPS and BPF, BPA accumulated preferentially in the topsoil (10 cm) and continuously increased with irrigation, resulting in an interception ratio of up to 38.07%. Vertical seepage migration was in the order of BPS > BPF > BPA. Acidic soil (pH = 5), high organic matter content (> 32 mg/g), and micro-agglomerates (< 0.053 mm) promoted the adsorption of these BPs and reduced their migration. Understanding the migration of BPs in soil, particularly in a vertical direction, will assist in controlling their migration. It will also help reduce their accumulation, thereby lowering ecological risks.
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Communications Chemistry
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2025
·Vol. 8
·期 1
·389
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IF 6.2
Han Lei,Tan Jingying,Zhang Yucui
Given the promising prospect of nanozymes in colorimetric test strips, it is essential to eliminate the interferences of their multi-activities and various colors on the test strip. Here, white Mn-based metal-organic frameworks (Mn-MOFs) with ultrathin 2D morphology (3 nm thick) were successfully synthesized by a simple ultrasonic approach. The origin of the white optical property in Mn-MOFs was systematically investigated, revealing that it stems from specific metal-ligand coordination polymerization rather than morphological features or defect states. Mn-MOF nanozymes possessed exclusive peroxidase-mimicking activity rather than oxidase-like activity, effectively resisting O 2 interference during colorimetric assay. Moreover, Mn-MOF nanozymes displayed unique substrate selectivity without additional modification. Unlike other colored nanozymes, the whiteness of Mn-MOF nanozymes enhanced the paper’s whiteness, boosting contrast for colorimetric detection on test strip. This study pioneers a systematic investigation into the origin of whiteness in MOF nanozymes. The coordination-defined properties enable interference-free optical design and O 2 -resistant on-site detection.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE
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2025
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IF 4.5
Zhang Yuelei,Ren Ziming,Yao Weihai,Wang Fengbin,Wang Gang
Chronic osteomyelitis remains a major challenge in orthopedic therapy. Developing a biodegradable, non-toxic material capable of providing sustained antibiotic release has emerged as a promising approach for localized antibiotic delivery in managing this condition. In this study, copper-tannic acid (CuTA) nanosheets were synthesized and employed as a coating material for vancomycin, resulting in the formation of vancomycin@CuTA (Van@CuTA) nanocomposites. The morphological and structural characterization of CuTA and Van@CuTA was performed using various techniques. The sustained release behavior of vancomycin, and in vitro effects of Van@CuTA on methicillin-resistant Staphylococcus aureus (MRSA) growth, bone marrow mesenchymal stem cells (BMSCs) viability, osteogenesis, and human umbilical vein endothelial cells (HUVECs) angiogenesis were systematically investigated. A rabbit model of chronic osteomyelitis was established to assess the therapeutic effect of Van@CuTA, in combination with fibrin gel, in controlling infection, preventing bone destruction, and inhibiting the progression of chronic osteomyelitis. The characterization results confirmed the formation of Van@CuTA nanocomposites. In vitro experiments revealed that Van@CuTA enabled gradual vancomycin release, effectively suppressed MRSA growth, and demonstrated no toxicity to BMSCs. Furthermore, Van@CuTA significantly promoted osteogenic differentiation of BMSCs and improved angiogenesis in HUVEC. The in vivo studies demonstrated that Van@CuTA coated with fibrin gel ameliorated the appearance of local infection, reduced bone structural damage, and diminished inflammatory infiltration within the bone marrow in the rabbit model of chronic osteomyelitis. Current findings indicated that CuTA nanosheets served as a promising in-situ antibiotic carrier for sustained release in chronic osteomyelitis treatment. Van@CuTA demonstrated improved antibacterial properties, enabled sustained vancomycin release, and promoted both osteogenesis and angiogenesis, leading to its preliminary therapeutic efficacy in rabbit models of chronic osteomyelitis and strong potential for clinical application in osteomyelitis treatment.
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Nature Communications
·
2025
·Vol. 16
·期 1
·10573
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IF 15.7
Yu Shifan,Ji Zhenzhou,Liu Lei,Huang Zijian,Luo Yanhao,Wang Huasen,Wangyuan Ruize,Guo Ziquan,Chen Zhong,Liao Qingliang,Zheng Yuanjin,Liao Xinqin
Proprioception and touch serve as complementary sensory modalities to coordinate hand kinematics and recognize users’ intent for precise interactions. However, current motion-tracking electronics remain bulky and insufficiently precise. Accurately decoding both is also challenging owing to the mechanical crosstalk of endogenous and exogenous deformations. Here, we report a hyperconformal dual-modal (HDM) metaskin for interactive hand motion interpretation. The metaskin integrates a strongly coupled hydrophilic interface with a two-step transfer strategy to minimize interfacial mechanical losses. The 10-μm-scale hyperconformal film is highly sensitive to intricate skin stretches while minimizing signal distortion. It accurately tracks skin stretches as well as touch locations and translates them into polar signals, which are individually salient. This approach enables a differentiable signaling topology within one single data channel without burdening structural complexity to the metaskin. When combined with temporal differential calculations and time-series machine learning network, the metaskin extracts interactive context and action cues from the low-dimensional data. This phenomenon is further exemplified through demonstrations in contextual navigation, typing and control integration, and multi-scenario object interaction. We demonstrate this fundamental approach in advanced skin-integrated electronics, highlighting its potential for instinctive interaction paradigms and paving the way for augmented somatosensation recognition.
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Nature Communications
·
2025
·Vol. 16
·期 1
·10668
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IF 15.7
Chen Liang,Hu Tengfei,Qi He,Yu Huifen,Fu Zhengqian,Zhang Shujun,Chen Jun
Electrostatic dielectric capacitors with high power density are the fundamental energy storage components in advanced electronic and electric power systems. However, simultaneously achieving ultrahigh energy density and efficiency poses a persistent challenge, preventing the capacitive applications towards miniaturization and low-energy consumption. Here we demonstrate giant energy storage properties in lead-free antiferroelectrics by designing hierarchical heterostructures to optimize polarization evolution paths. Through the design of antiferroelectric nanoclusters featuring interlocked polarization structure and fishbone polarization configuration, alongside order-disorder oxygen octahedral tilts, we increase polarization fluctuation and delay polarization saturation with nearly eliminated hysteresis under ultrahigh external electric fields. Leveraging this strategy, we achieve an ultrahigh energy density of 21.0 J cm -3 with an impressive efficiency of 90% in sodium niobate-based ceramics, underscoring the great potential of this methodology for designing high-performance dielectrics and other functional materials.
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BMC Chemistry
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2025
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IF 4.6
Qiming Zheng,Chenming Peng,Wei Qian,Xin Wang,Defeng Wang,Kairui Yang
This investigation developed and evaluated a new type of high-temperature-resistant gel particle system (DPAG), which is specifically designed for conformance control in high-temperature reservoirs. Conventional conformance control systems, including polymer gel systems and foam-based technologies, often suffer from thermal degradation and insufficient plugging stability under high-temperature environments. To address these limitations, DPAG gel particles were synthesized via inverse emulsion polymerization, incorporating thermally stable functional monomers (AMPS and DAC) to create a dual-crosslinking network combining covalent bonds and electrostatic interactions. A comprehensive characterization combining chemical structure assessment, particle size measurement and microscopic morphology examination confirmed the successful synthesis of DPAG gel particles, revealing their uniform size distribution and well-defined morphology. Thermodynamic stability analysis, combined with rheological characterization, revealed that DPAG gel particles exhibit enhanced structural integrity, thermal resistance, and mechanical strength compared to conventional AM gel particles. Swelling kinetic studies revealed that DPAG gel particles exhibit significantly enhanced swelling characteristics, achieved a swelling ratio of 14.6. Experimental results indicated that DPAG microsphere dispersions at concentrations of 0.1% to 0.5% not only maintained excellent injectivity but also achieved remarkable plugging efficiency, reaching up to 98.7%. Particularly under high-temperature conditions, DPAG gel particles displayed outstanding stability, retaining excellent mechanical properties after 30 days with less than 17.4% strength loss. Core flooding experiments demonstrated that DPAG gel particles exhibit both deep migration capability and long-term stability in high-temperature reservoirs, ultimately enhancing oil recovery by 22.4%. These findings strongly indicate the significant potential of DPAG gel particles for well conformance control in high-temperature oilfields.
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Nature Communications
·
2025
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IF 15.7
Fang Zhou,Robert J Ju,Chenlu Kang,Jiayi Li,Ao Yang,Alexandre Libert,Yujie Sun,Ling Liang,Youwei Ai,Xiaoqing Hu,Samantha J Stehbens,Congying Wu
Cells in highly crowded environments are exposed to fluctuating mechanical forces. While cells can activate the cortical migration machinery to escape from undesirable compressive stress, the consequence to less motile cells and of prolonged extensive confinement is yet to be uncovered. Here, we demonstrate that nuclear deformation generated by axial confinement triggers a specific form of regulated cell death – ferroptosis. We show that axial confinement is sensed by the nucleus and results in Drp1-dependent mitochondrial fragmentation and mitochondrial ROS accumulation. Meanwhile, we detect cPLA2 translocation to mitochondria. These mitochondrial ROS accumulation and arachidonic acid production concertedly lead to lipid peroxidation and evoke ferroptosis. Interestingly, we find in osteoarthritis, a disease intimately associated with mechanical overloading and inflammation, characteristics of confinement-induced ferroptosis including mitochondrial localization of cPLA2 and high ROS. Together, our findings unveil a pivotal role of cell nucleus and mitochondria in linking mechanical confinement with cell death, highlighting the orchestration of Drp1 and cPLA2 in confinement-induced ferroptosis. A groundbreaking study reveals how physical confinement triggers ferroptosis. It finds the nucleus acts as a mechanosensor, orchestrating Drp1 and cPLA2 that leads to mitochondrial dysfunction and ultimately, cell death.
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JOURNAL OF FLUORESCENCE
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2025
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IF 3.1
Li Chen,Niu Shengjie,Yu Siwen,Li Hang,Zhang Shengrui,Cao Xiaoyan,Li Lihua,Dai Huiping,Sun Jiangjiang,Li Hua,Wang Qin
The freshness of food is directly connected with safety, hygiene, and human health. Accurate quantification of biogenic amine level is crucial for assessing the food quality. Therefore, a dual-excitation ratiometric fluorescent probe MCCN based on hemicyanine dye for the examination of biogenic amines was constructed. After the addition of biogenic amines to the MCCN solution, an elimination reaction occurred after a nucleophilic addition reaction to form Schiff base MC-CA , resulting in colorimetric and ratiometric fluorescence responses. The probe MCCN solution was blue. After successively adding biogenic amines (cadaverine, n-butylamine and spermidine), the fluorescence emission intensity of probe MCCN at 709 nm reduced under excitation at 650 nm, meanwhile a new fluorescence emission peak emerged at 545 nm gradually increased under excitation at 450 nm, accompanying by a visible color variation from blue to yellow. The probe MCCN also displayed remarkable selectivity toward biogenic amines over other analytes. Based on the above excellent characteristics, the probe MCCN was successfully utilized to detect biogenic amines in the extract supernatant of shrimp and fish during the spoilage process. In addition, photographing the MCCN -loaded food extract supernatant enabled the correlation of color parameters with storage time, affording an accurate and simple method to reveal food spoilage process. The excellent sensing performance makes the MCCN probe a convenient and accurate screening platform for real-time assessing food freshness.
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ANALYTICAL AND BIOANALYTICAL CHEMISTRY
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2025
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IF 3.8
Chen Biqing,Gao Jiayin,Sun Haizhu,Zhao Yinghan,Liu Yan,Lv Xinpeng,Qiu Xiaohong,Li Yang
Chemotherapy remains a cornerstone in the treatment of multiple solid and gynecologic malignancies, including endometrial cancer, ovarian cancer, and breast cancer. Carboplatin, epirubicin, gemcitabine, paclitaxel, topotecan, and docetaxel are widely used in combination regimens; however, there is still a lack of sensitive, rapid, and multiplex technologies for real-time monitoring of chemotherapeutic drug concentrations. In this study, we developed a carboxyl-polyethylene glycol (PEG)-modified magnetite (Fe₃O₄@PEG) nanoplatform combined with artificial intelligence (AI)-driven spectral analysis to achieve ultra-sensitive and multiplex detection of six chemotherapeutic drugs. Fe₃O₄ nanoparticles were synthesized by co-precipitation and subsequently functionalized with carboxyl-PEG to enhance drug capture efficiency and resistance to matrix interference. Using a confocal Raman imaging system, SERS spectra of single and mixed drug systems were collected, and convolutional neural networks (CNNs) were employed for automated feature extraction and classification to enable qualitative and quantitative analysis. The constructed SERS platform achieved 10⁻⁷–10⁻⁸ milligrams per milliliter (mg/mL) detection limits for all six drugs in serum matrices, with classification accuracies exceeding 95% in multiplex mixtures. For improved quantitative accuracy and normalization, the 2078 cm⁻ 1 Raman peak of deuterated methanol (CD₃OD) was employed as an internal standard to correct for potential fluctuations in laser intensity and sample concentration. Within the simulated therapeutic concentration range, quantitative regression yielded R 2 ≥ 0.98. This AI-SERS platform offers advantages of multiplex detection, trace-level sensitivity, and strong anti-matrix interference, holding great promise for pharmacokinetic monitoring and individualized chemotherapy optimization across a broad range of solid tumors. Graphical abstract Schematic illustration of an AI-integrated Fe 3 O 4 @PEG–SERS nanoplatform for multiplex detection of six chemotherapeutic agents (carboplatin, epirubicin, gemcitabine, paclitaxel, topotecan, and docetaxel). Carboxyl-PEG–modified magnetite nanoparticles enhance drug adsorption and stability, while convolutional neural networks enable accurate qualitative and quantitative spectral analysis for personalized chemotherapy optimization.
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Journal of Food Measurement and Characterization
·
2025
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IF 3.3
Zeng Liping,Yang Ruopeng,Deng Qiuhong,Hu Chunyuan,Tian Ruijin,Yang Guangming,Liu Sha,Fan Aiping
This study successfully prepared polylactic acid (PLA) composite films containing Litsea cubeba oil (LCO, 9 wt%) and different concentrations of nano-TiO 2 (0 wt%, 1 wt%, 2 wt%, and 3 wt%), and evaluated their efficacy in preserving fresh-cut jackfruit. The results showed that LCO and nano-TiO 2 could be successfully incorporated into the PLA matrix, which improved the composite films’ structure, flexibility, water and UV resistance, and antioxidant and antimicrobial activities. Notably, the composite film with 2 wt% nano-TiO 2 content exhibited the best overall performance among all the packaging materials. Experiments on fresh-cut jackfruit preservation revealed that the composite films suppressed the proliferation of microorganisms like total bacterial count, mold and yeast, and to varying degrees, inhibited their growth and slowed down the quality deterioration of fresh-cut jackfruit. In addition, composite film with 2 wt% nano-TiO 2 content was the most effective in inhibiting microorganisms, respiratory rate, enzyme activity, and malondialdehyde (MDA) content as well as in maintaining weight loss, color, firmness, flavor, and vitamin C (VC) content, ultimately extended the shelf-life of fresh-cut jackfruit from 6 to 15 days at 10 °C. This work demonstrates the feasibility of bioactive PLA films as safe antimicrobial packaging for tropical fruits.
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JOURNAL OF MATERIALS SCIENCE
·
2025
·
IF 3.9
Zhang Mengruo,Zhang Yuwei,Sun Jia,Feng Wenkai,Li Rao
Traditional wound dressings often fail to address the dynamic mechanical and biochemical demands of complex wound microenvironments, necessitating advanced materials with multifunctional adaptability. Herein, a multifunctional composite hydrogel (PCTM) was developed by integrating polyvinyl alcohol, carboxymethyl chitosan, tannic acid, and montmorillonite (MMT) through a synergistic physical crosslinking strategy. The freeze–thaw process, combined with hydrogen bonding and electrostatic interactions, enhanced anti-swelling capacity (equilibrium ratio: 1.11 in PBS). MMT reinforcement significantly improved mechanical robustness, achieving a tensile strength of 994.2 kPa, compressive strength of 461.6 kPa, and energy dissipation of 15.4 kJ/m 3 , ensuring structural stability under repetitive deformations. Dynamic reversible interactions endowed rapid self-healing (75.9% strength recovery) and strong tissue adhesion (26.2 kPa), critical for mechanically active wound regions. The hydrogel prepared in this work shows promising potential for biomedical applications, particularly as a skin wound dressing. Graphical abstract
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危险品化学品经营许可证（带存储）