ANALYTICAL AND BIOANALYTICAL CHEMISTRY
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2020
·Vol. 412
·期 4
·915-922
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IF 3.637
Wu Zhi-Wei,Xie Xing-Chen,Guo Hong-Ran,Xia Huan,Huang Ke-Jing
A tetrahedral DNA probe can effectively overcome the steric effects of a single-stranded probe to obtain well-controlled density and minimize nonspecific adsorption. Herein, a highly sensitive electrochemical biosensor is fabricated for determination of protein using a tetrahedral DNA probe and rolling circle amplification (RCA). N- and P-co-doped graphene (NP-rGO) is prepared, and AuNPs are then electrodeposited on it for DNA probe immobilization. Benefitting from the synergistic effects of the excellent electrical conductivity of NP-rGO, the stability of the tetrahedral DNA probe and the signal amplification of RCA, the biosensor achieves a low limit of 3.53 × 10 −14 M for thrombin and a wide linear range from 1 × 10 −13 to 1 × 10 −7 M. This study provides a sensitive and effective method for the detection of protein in peripheral biofluids, and paves the way for future clinical diagnostics and treatment of disease.
Graphical abstract
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JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
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2025
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IF 6.2
Xu Xu,Sheng-Dong Wang,Li-Ping Liu,Qiang Fu,Jun Zheng,Ling-Ling Lyu
This study systematically evaluated the synergistic effects of terpinen-4-ol (T4O) with p-menthane-3,8-diol (PMD) for enhanced mosquito repellency. Through screening 20 essential oils, we identified six candidates (cinnamon, eucalyptus, tea tree, litsea cubeba, moxa, peppermint) demonstrating >85% repellency. GC-MS analysis revealed 17 candidate compounds, with T4O exhibiting strong electrophysiological responses (0.031 ± 0.002 mV). Molecular docking confirmed its high binding affinity to mosquito odorant-binding proteins, suggesting its potential as an olfactory disruptor. In PMD-based binary formulations: TP2 (20% T4O) achieved 86.9 ± 1.8% spatial repellency, 30.6% higher than PMD alone; TP1 (10% T4O) provided 6.58 ± 0.38 h of skin protection, extending PMD’s efficacy by 21.6%; TP5 (50% T4O) enhanced fumigation efficacy, reducing KT50 to 3.00 ± 0.32 min (78.7% decrease); TP3 (30% T4O) reduced LC50 by 17.2–25.0% against larval instars I–IV. This work demonstrates T4O’s multidimensional enhancement of PMD’s efficacy, offering an effective natural alternative to synthetic repellents.
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POLYMER DEGRADATION AND STABILITY
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2025
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IF 7.4
Xinchao Li,Shansan Yuan,Pin Wang,Jianfeng Li,Jin Zhang,Fafu Zong,Zhaohui Zheng,Guoxing Sun,Mingjun Chen,Ting Wang,Zhicheng Fu,Wenli An,Jinni Deng
Flammability and droplet behavior are the key obstacle to the development of polypropylene (PP) materials. Traditional flame retardants (FRs) for this are inefficient and often lead to strong damage in mechanical performance, due to their whole-part distribution and incompatibility in PP blends. To address this, in this work, novel intumescent flame retardants with Si-P-N single-molecule synergy (SMIFRs) were prepared and introduced in PP by melt-blending process. Owing to the low-surface-energy properties of Si, it’s confirmed that SMIFRs could mostly aggregate on the surface, demonstrating high-efficient flame retardancy and obviously enhanced mechanical properties in PP blend. More specifically, with just 3.3 wt% phosphorus content, PP blend can achieve V-0 rating without any melt-droplet phenomenon, exhibiting increased limiting oxygen index (LOI) value by 58% and reduced peak heat release rate (pHRR) by 81%, compared with pure PP. Notably, just because of the surface aggregation that not only decreases the content of SMIFRs but also lowers its internal distribution in PP, the damage of mechanical properties of PP blend is greatly weakened (elongation is 57% higher than the blend prepared by mixed FRs at the same ratio), demonstrating optimal mechanical properties compared with flame-retardant PP blends reported before. This mechanism based on surface aggregation and single-molecule synergy would provide a novel strategy for PP to acquire both high-efficient flame retardancy and good mechanical performance.
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Journal of Physical Chemistry Letters
·
2019
·
IF 7.329
Hebin Wang,Hongyu Chen,Li Li,Yuefei Wang,Longxing Su,Wanpeng Bian,Bingsheng Li,Xiaosheng Fang
A high responsivity self-powered solar-blind deep UV (DUV) photodetector with high rejection ratio was proposed based on inorganic/organic hybrid p–n junction. Owing to the high crystallized β-Ga2O3 and excellent transparent conductive polymer PEDOT:PSS, the device exhibited ultrahigh responsivity of 2.6 A/W at 245 nm with a sharp cutoff wavelength at 255 nm without any power supply. The responsivity is much larger than that of previous solar-blind DUV photodetectors. Moreover, the device exhibited an ultrahigh solar-blind/UV rejection ratio (R245 nm/R280 nm) of 103, which is two orders of magnitude larger than the average value reported in Ga2O3-based solar-blind photodetectors. In addition, the photodetector shows a narrow bandpass response of only 17 nm in width. This work might be of great value in developing a high wavelength selective DUV photodetector with respect to low cost for future energy-efficient photoelectric devices.
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CERAMICS INTERNATIONAL
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2026
·
IF 6
Zhenjun Qing,Jie Duan,Haiyan Li,Yan Xue
A novel NaLaP 2 O 7 ceramic was fabricated via the solid-state reaction method. The sample sintered at 750 °C demonstrated optimal microwave dielectric properties with an ε r of 7.3, a high Q × f value of 23,510 GHz, and a τ f of –79.3 ppm/°C, which are attributed to its high relative density (95.3%) and homogeneous microstructure. Rietveld refinement confirmed a pure orthorhombic phase ( Pnma ). Furthermore, chemical bond analysis based on the P-V-L theory revealed that the high ionicity of La–O bonds predominantly governs the permittivity, while the strong lattice energy and bond energy of P–O bonds are responsible for the high Q × f value and thermal stability, respectively. Raman spectroscopy further verified the highly ordered crystal structure, shown by the characteristic vibrational modes of the P 2 O 7 4- dimer. These findings not only demonstrate that NaLaP 2 O 7 ceramic is a promising low-permittivity candidate for LTCC applications in millimeter-wave communication, but also provide deep insights into the underlying structure–property relationships.
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CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Jinming Fu,Jun Yao,Chuiyun Tang,Tatjana Šolević Knudsen,Jian-li Liu
p-Chloroaniline (PCA), a persistent and toxic pollutant in mine tailings, necessitates cost-effective remediation strategies. This study evaluates the degradation of PCA by Fe 2+ /Fe 3+ -catalyzed sodium persulfate (SPS) and sodium percarbonate (SPC) oxidation enhanced by UVA-B irradiation. Among the systems tested, the UVA-B/Fe 2+ /SPS system achieved 96.2% PCA removal within 180 min, outperforming other configurations. Radical scavenging experiments and density functional theory (DFT) calculations suggested that SO 4 • − and •OH radicals were the primary reactive species in SPS systems, while •OH and O 2 ●- were identified as the major reactive species in SPC systems. DFT further revealed vulnerable sites on PCA for radical attack, supporting proposed degradation pathways. ECOSAR toxicity assessment revealed that although PCA acute toxicity decreased, certain intermediates (e.g., azo-compounds) retained high chronic toxicity, highlighting the importance of process optimization. This study provides novel insights into the degradation mechanisms of PCA, establishing a mechanistic foundation for designing solar-enhanced, iron-coupled advanced oxidation processes for industrial-scale remediation of halogenated aromatics in mining environments.
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Journal of Bioresources and Bioproducts
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2026
·
IF 13
Fengzhi Tan,Feifan Lu,Jiali Wei,Xing Wang,Jinghui Zhou,Jingyu Xu
The widespread deployment of renewable energy sources worldwide, such as wind power and photovoltaics, has created an urgent need for efficient energy storage systems. Biomass-derived carbon aerogels, due to their environmentally friendly and sustainable properties, have emerged as ideal precursor materials for advanced energy storage applications, particularly in supercapacitors. This study developed a method to prepare phytate-induced phosphorus/sulfur (P/S) co-doped magnesium lignosulfonate-based carbon aerogels (LCAs). Phytate induction facilitated the formation of regular spherical structures while simultaneously optimizing surface morphology and enabling efficient and uniform doping of P and S heteroatoms. The optimized sample, LCA-2-700, the lignin-based carbon aerogel that was prepared with the magnesium lignosulfonate (LS)꞉sodium alginate (SA)꞉phytic acid (PA) mass ratio of 5꞉5꞉2 and carbonized at 700 °C, exhibited a specific capacitance of 362 F/g at the current density of 0.5 A/g, with the assembled device achieving an energy density of 40.1 W·h/kg at a power density of 700 W/kg. After 20 000 cycles, the capacitance retention rate remained at 82.5%, demonstrating excellent electrochemical durability. The high performance was attributed to the synergistic effects of its spherical structure, high specific surface area, and P/S dual-heteroatom doping. This study provides an effective approach for synergistic structure-doping regulation of lignin-based carbon aerogels and provides a potential pathway for practical applications in high-performance supercapacitors.
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Journal of Environmental Chemical Engineering
·
2023
·Vol. 11
·期 6
·111477
·
IF 7.7
Siyi Zhou,Fang Zhu,Hao Cheng,Sridhar Komarneni,Jianfeng Ma
In this study, Ni 3 S 2 @Mo 2 S 3 composites were grown on the surface of molybdenum-nickel (Mo-Ni) foam in situ by a one-step hydrothermal method . With p-nitrophenol (PNP) as the target pollutant, the catalyst can produce a good synergistic effect with ozone, and the degradation rate of PNP is more than 96%. Even after five cycles, Ni 3 S 2 @Mo 2 S 3 -NF/O 3 was able to degrade PNP efficiently and stably. In addition, the unique three-dimensional structure of Ni 3 S 2 @Mo 2 S 3 -NF solves the separation and recycling problem of traditional powder catalysts by maintaining the structural stability during the use process and thus, may reduce the cost of water treatment. The degradation process is mainly dominated by non-radical pathways, and the radical pathway, which work synergistically. This work reveals the influencing factors and degradation mechanism of Ni 3 S 2 @Mo 2 S 3 -NF/O 3 system for PNP degradation, which provides a new idea for water treatment and broadens its potential application.
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JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
·
2016
·Vol. 105
·期 6
·1369-1378
·
IF 2.881
Bing Wang,Jun Dong,Lijing Niu,Wenyan Chen,Dongliang Chen,Chengyi Shen,Jiang Zhu,Xiaoming Zhang
Electrospun membranes of poly(p-dioxanone-co- l -phenylalanine) (PDPA) hold potential as an anti-adhesion material. Since adjustable degradation properties are important for anti-adhesion materials, in this study, the in vitro and in vivo degradation processes of PDPA electrospun membranes were investigated in detail. The morphological analysis of these membranes revealed the main degradation conditions of PDPA membranes. The weight remaining and molecular weight variation showed that the overall degradation rate of the membranes could be adjusted by modulating the molecular structure of the PDPAs. Especially, α-chymotrypsin could catalyze the degradation process of PDPAs. Based on these results, the in vitro degradation mechanism was demonstrated, and confirmed by 1 H NMR of the hydrolysis products. Finally, the in vivo degradation and biocompatibility of different PDPAs were investigated. The kinetic study showed that the in vitro and in vivo molecular weight loss of PDPAs have the first-order characteristics. The in vivo degradation rate of the most Phe-containing PDPA-3 is the slowest, and this result relates to the biocompatibilities of PDPAs. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 1369–1378, 2017.
研究领域:
生物材料学
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组织工程
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高分子科学
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生物医学工程
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药物递送
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再生医学
·
生物降解
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ANALYTICAL AND BIOANALYTICAL CHEMISTRY
·
2026
·
IF 4.1
Wang Ying,Yan Yiting,Zhang Jun,Yang Lin,Liu Fanghua,Tan Chao,Jiang Xue
p-Benzoquinone (PBQ), as a key toxic derivative of benzene, is widely present in industrial wastewater and the production and manufacturing of daily chemicals. Long-term exposure poses a serious health threat, making the development of rapid and sensitive on-site detection technologies highly significant. Electrochemical methods, due to their simple operation, high sensitivity, and ease of miniaturization, are an ideal approach for detecting PBQ. Co-MOF-74 is extensively used in the electrochemical field because of its structural stability, tunable metal nodes, and large surface area, but its low conductivity limits further applications. In this study, Co-MOF-74 was rapidly synthesized using dielectric barrier discharge (DBD) microplasma technology, and then the large π-conjugated organic ligand HATP was introduced for ligand engineering to successfully prepare Co-MOF-74-HATP. This synthesis strategy is not only efficient, but also the introduction of HATP effectively regulates the material’s electronic structure, significantly enhancing its conductivity and electrocatalytic activity. The electrochemical sensor employs chronoamperometric detection at −0.15 V (vs. Ag/AgCl) and exhibits excellent performance for PBQ, featuring two wide linear ranges (17–1602 µM and 1602–5602 µM) with corresponding sensitivities of 1440 µA·mM −1 ·cm −2 and 497.8 µA·mM −1 ·cm −2 , a low limit of detection (LOD) of 3.43 µM ( S / N = 3), and good reproducibility (RSD < 3.0%). It was successfully applied to the detection of PBQ in actual water samples with recoveries ranging from 90.5% to 102.32%. This work expands the synthesis of ligand-functionalized MOFs through DBD microplasma technology and applies them to the electrochemical detection of PBQ in water samples. Graphical abstract
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PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
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2026
·
IF 7.9
Zimeng Gao,Yueying Li,Xiunan Cai,Zhongqiu Luo,Chaochao Lai,Cuirong Yan,Qian Long,Shiyu Liu,Liming Ning,Xue Yang,Xintao Zhou
The development of environmental and cost‑effective materials capable of simultaneously adsorbing heavy metals and degrading organic pollutants is essential for the safe treatment of industrial wastewater. In this study, porous rubber sludge‑based geopolymer microspheres (RS‑Ms) were fabricated from iron/phosphorus‑rich rubber sludge via alkali‑activation and suspension solidification. In a peroxymonosulfate (PMS) activation system, the RS‑Ms achieved complete degradation (100%) of tetracycline within 20 min, being 10.2 times faster than powdered rubber sludge, while simultaneously adsorbing Cu 2 + with a capacity of 24.5 mg·g⁻¹ . The high performance originates from the hierarchical porous structure that exposes abundant iron sites, and the intrinsic phosphorus that modulates the iron electronic structure, promoting electron transfer to PMS. Notably, Cu 2+ incorporated into the geopolymer framework via ion exchange acts as an “electron shuttle”, accelerating the Fe 3+ /Fe 2+ cycle and enhancing tetracycline degradation by 1.6‑fold in co‑pollutant systems. Mechanism studies indicate Cu 2+ removal occurs through complexation, hydrogen bonding, electrostatic adsorption, and ion exchange, while tetracycline degradation follows synergistic radical (•OH, SO 4 •− ) and non‑radical ( 1 O 2 ) pathways. The RS‑Ms/PMS system also demonstrated excellent stability, broad pH adaptability, and strong anti‑interference capacity in simulated real water. This work provides a feasible and safe strategy for valorizing industrial sludge into dual‑functional remediation materials, contributing to sustainable and hazard‑conscious wastewater treatment practices. Download: Download high-res image (224KB) Download: Download full-size image
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JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
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2026
·
IF 1.7
Wu Hao,Tanaka Mai,Osawa Naoki,Kubota Masahiko,Kim Seong-Yun
In this work, a silica-based adsorbent incorporating two types of extractants was synthesized through vacuum-assisted impregnation. The synergistic adsorption behaviors of the prepared (TEHTDGA + TAMIA-EH)/SiO 2 –P composite toward 14 types of representative metal ions in simulated high-level liquid waste were systematically investigated under different contact durations, nitric acid concentrations, and solution temperatures, revealing the strong affinity of the (TEHTDGA + TAMIA-EH)/SiO 2 –P composite toward Pd(II), Ru(III), Re(VII), Mo(VI), and Zr(IV). Particularly, Pd(II) rapidly adsorbed on the composite, reaching equilibrium within 2h, with a removal efficiency exceeding 95%. Notably, the adsorption performance of the (TEHTDGA + TAMIA-EH)/SiO 2 –P composite toward Pd(II) remained stable across broad ranges of nitric acid concentration (0.1–5M) and temperature (288–323K), indicating its strong acid tolerance and thermal stability. Furthermore, the adsorbed Pd(II) was effectively eluted using 0.01M thiourea ([HNO 3 ] = 1M) in chromatographic experiments.
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