ANALYTICAL AND BIOANALYTICAL CHEMISTRY
·
2026
·
IF 4.1
Lin Qiongyun,Wan Lingling,Liu Changming,Sheng Mingxiong
Herein, we developed a bandage-based colorimetric immunoassay for the visual and quantitative detection of prostate-specific antigen (PSA) by utilizing the cotton fiber region of a commercial adhesive bandage as an antibody immobilization substrate and integrating FeCo Prussian blue analog (FeCo-PBA) nanozymes for signal amplification. FeCo-PBA nanozymes were synthesized through a simple aqueous-phase method and employed as catalytic labels in a sandwich immunoassay. Upon PSA recognition, FeCo-PBA-labeled antibodies were captured on the fiber surface and catalyzed the oxidation of 3,3′,5,5′-tetramethylbenzidine (TMB) in the presence of H 2 O 2 , producing a visible blue color signal, while a smartphone-assisted platform was established to extract red value ( R -value) for quantitative analysis. The FeCo-PBA nanozymes exhibited a high peroxidase-like activity of 10.43 U mg −1 , which was 2.9 times higher than that of Fe-based Prussian blue nanoparticles, and a lower activation energy of 7.62 kJ mol −1 , indicating enhanced catalytic efficiency. Owing to the improved catalytic performance, the sensor enabled quantitative PSA detection over a range of 0.1–50 ng mL −1 based on the correlation between the R -value and PSA concentration, while also demonstrating good selectivity and accuracy. This work provides a simple and low-cost strategy for converting commercial bandages into quantitative biosensing platforms and offers a promising approach for portable point-of-care cancer biomarker detection. Graphical abstract
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JOM
·
2024
·
IF 2.1
Saleem Muhammad Farooq,Ashraf Ghulam Abbas,Javid Muhammad,Haleem Yasir A.,Haidry Azhar Ali,Farooq Sajid,Lei Ma,Bilal Muhammad,Habib Muhammad,Akhtar Muhammad Saeed,Khan Rashid,Wang Tianwu
Understanding the dielectric properties of materials in the THz frequency range is crucial for the advancement of THz devices. Despite their significance, the dielectric characteristics of zirconium carbide (ZrC) within this frequency range remain underexplored, in particular the impact of surface carbon and oxide layers typically found on carbide particles. While traditional studies mainly focus on particle size, this study emphasizes the pivotal role of particle morphology in determining dielectric properties. Milling was employed to increase the surface exposure of ZrC particles, which were initially covered with layers of carbon and oxides. The dielectric parameters, derived from experimental THz time-domain spectroscopy (THz-TDS) data, indicated that increased milling led to improved energy storage capabilities. This enhancement is attributed to increased electronic polarizability and charge disorder-induced ionic polarization due to the increased surface exposure. Furthermore, the dielectric properties displayed reduced dispersion after further milling attributed to the uniform particle sizes and shapes achieved through this process. Our findings underscore the critical influence of surface carbon and oxide layers on the dielectric properties of ZrC and similar carbide particles—an aspect often overlooked in studies that focus solely on particle size and shape, ignoring the distinct dielectric contributions of each surface layer.
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Journal of Coatings Technology and Research
·
2025
·
IF 2.8
Wei Zeng-Feng,Zhang Yu-Meng,Liu Xue-Lian,Zhang Bi-Yang,Ni Li-Jie,Quan Heng
This study introduces a mussel-inspired superhydrophobic coating designed to enhance the long-term anticorrosion performance of copper in marine environments. Fluorine-free and fluorine-containing superhydrophobic coatings were developed by O 3 -assisted pretreatment, solution polymerization of dopamine, and the Michael addition reaction of dodecyl mercaptan and perfluorooctyl ethyl mercaptan. The ozone pretreatment allows dopamine to form a denser adsorption layer on the copper surface, which improves the long-term stability of the coating. The contact angles of the two coatings are 152.8° and 155.1°, respectively. Both types of superhydrophobic coatings demonstrate good corrosion inhibition performance, particularly the fluorine-containing superhydrophobic coating (99.98%). After 28 days of simulated seawater immersion, the fluorine-containing coating still maintains high corrosion inhibition efficiency (97.02%) and good hydrophobic characteristics (140.7°), which highlight its excellent long-term seawater corrosion resistance and stability. This study provides guidelines for designing durable superhydrophobic coatings.
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高影响因子
IONICS
·
2025
·
IF 2.6
Wang Ying,Liu Wenda,Zhao Huimin,Zhu Yu,Wang Qiqi,Wei Jinli,Javed Maroosha,Zhuang Linghua,Wang Guowei
Two hydroxyl-containing ionic liquids (HCILs) were synthesized and used for dissolving microcrystalline cellulose (MCC). Two HCILs were [MPmim][Cl] (1-methyl-3-(3-hydroxypropyl)-imidazolium chloride) and [MPbim][Cl] (1-butyl-3-(3-hydroxypropyl)-imidazolium chloride). Two hydroxyl-containing ionic liquids were studied with nuclear magnetic resonance ( 1 H NMR and 13 C NMR), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), and elemental analysis. Solvatochromic parameters ( β and π * values) of two HCILs were studied. MCC dissolution performance was evaluated and the regenerated MCC was characterized. Density functional theory (DFT) calculations were employed to gain insights into dissolution mechanism of MCC in [MPmim][Cl] or [MPbim][Cl]. [MPmim][Cl] and MPbim][Cl] demonstrated approximately same β value (0.72, or 0.73), while π * value of [MPmim][Cl] ( π * = 1.11) was slightly higher than that of [MPbim][Cl] ( π * = 1.02). At same temperature, MCC dissolution time in HCILs shortened from butyl group ([MPbim][Cl]) to methyl group ([MPmim][Cl]). DFT calculations revealed that hydroxyl group in [MPmim][Cl] or [MPbim][Cl] formed strong hydrogen bonds with hydroxyl groups of cellobiose. The strong hydrogen bonds were formed between cellobiose and imidazolium cation, as O44-H45…O67 (1.777 Å) and O67-H68…O42 (2.022 Å), which weakened the intermolecular hydrogen bonding network of MCC, thus improving the MCC dissolution process. Characterization of regenerated MCC confirmed that the highly crystalline cellulose transformed into more amorphous form during the ionic liquid dissolution process. The results will shed light on preparation and selection of functional ionic liquids for cellulose dissolution and broaden industrial application of cellulose materials.
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高影响因子
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
·
2024
·
IF 3.1
Yang Yu,Ma Xueliang,Wang Manzhu,Ji Xinyi,Li Long,Liu Ziyu,Wang Jiangyao,Ren Yujin,Jia Lili
In this study, γ-butyrolactone/water (GBL/H 2 O) was explored as a mild, efficient, and cost-effective binary solvent pretreatment to enhance hydrolyzability of corn stover (CS). Key pretreatment parameters—reaction time, temperature, and H 2 SO 4 concentration—were systematically investigated for their effects on the physicochemical properties of CS. Specifically, increased temperature and acid concentration significantly decreased cellulose crystallinity (from 1.39 for untreated CS to 1.04 for CS pretreated by GBL/H 2 O with 100 mM H 2 SO 4 at 120 °C for 1 h) and promoted lignin removal (47.3% for CS pretreated by GBL/H 2 O with 150 mM H 2 SO 4 at 120 °C for 1 h). Acknowledging the cellulase’s limited hydrolysis efficiency, a dual-enzyme scheme using a low cellulase dosage (10 FPU/g) supplemented with β-glucosidase or xylanase was tested, enhancing hydrolysis of CS pretreated under low temperature–long duration and high temperature–short duration conditions, respectively. Optimum sugar release was obtained from CS pretreated with GBL/H 2 O and 150 mM H 2 SO 4 at 120 °C for 1 h, achieving 98% glucan and 82.3% xylan conversion, compared with 53.9% and 17% of glucan and xylan conversion from untreated CS. GBL/H 2 O pretreatment outperformed other binary systems in literature, achieving the highest sugar conversions with lower enzyme loading. These results highlight the potential of GBL/H 2 O pretreatment for efficient biomass conversion, contributing to the goals of the green economy.
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PubMed
高影响因子
COLLOID AND POLYMER SCIENCE
·
2025
·
IF 2.3
Tumrani Sadam Hussain,Sharma Bharat Prasad,Otho Ali Raza,Ayob Eman A.,Amin Mohammed A.,Soliman Mohamed Mohamed,Soomro Razium Ali,Karakuş Selcan
The environmental impact of biodegradable microplastics (BMPs) is profoundly influenced by aging-induced surface transformations, yet their interactions with persistent organic pollutants, such as perfluorooctanoic acid (PFOA), remain poorly understood. This work investigates how aging polylactic acid (PLA), a common BMP, in simulated surface water for 80 days alters its physicochemical properties and behavior towards PFOA. Aging triggered oxidative and hydrolytic degradation, leading to pronounced morphological changes, including increased surface roughness, hydrophilicity, and oxygen-to-carbon (O/C) ratio from 0.82 to 1.28. These transformations introduced hydroxyl and carboxyl functional groups, shifting the PFOA adsorption mechanism from physisorption (in fresh PLA) to chemisorption (in aged PLA) via stronger electrostatic interactions and hydrogen bonding. Additionally, kinetic and isotherm analyses revealed a tenfold increase in PFOA monolayer adsorption capacity for aged PLA (PLA-80) compared to pristine PLA. Density functional theory (DFT) calculations corroborated these findings, demonstrating a reduced HOMO–LUMO energy gap upon PFOA adsorption, indicative of enhanced electronic reactivity and charge transfer. Topological analysis further identified multiple hydrogen-bonding sites, confirming the dominance of electrostatic forces in pollutant retention. These results underscore the critical role of aging in amplifying BMPs’ environmental reactivity, emphasizing the urgent need to incorporate aging processes into risk assessments for biodegradable plastics.
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MICROCHIMICA ACTA
·
2024
·Vol. 192
·期 1
·1-11
·
IF 5.3
Yang Kaige,Fu Wenchang,Ma Yinjie,Wu Mingyuan,Li Xinyan,Wang Yan
A straightforward capillary isoelectric focusing (cIEF) method is established with a isoelectric point (pI) range spanning from 3.5 to 7.0, exhibiting excellent linearity and repeatability, with an R 2 value of 0.9937 and migration time RSDs for all standard proteins below 0.3%. Subsequently, this method was applied to model exosomes derived from cell lines and healthy human serum, and the peak attributions of exosomes were identified using DiI labeled exosomes and lysed exosomes. The reproducibility of this method in exosome detection was also validated, as the RSDs of all pI values were less than 1%. Then, we observed a significant increase in the pI of exosomes with higher cholesterol content, irrespective of whether they originated from cell culture medium or mouse plasma. Notably, serum exosomes from healthy volunteers exhibited higher pI values compared to those from hepatocellular carcinoma patients, suggesting a potential diagnostic perspective for cancer. These findings underscore the significance of pI measurement in reflecting modifications in exosomal lipid membrane composition and their implications in biological functions mediated by exosomes. Graphical
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高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2024
·Vol. 35
·期 17
·1-15
·
IF 2.8
Min Zhijian,Hu Yuehui,Chen Yichuan,Wu Weimin,Hu Yefu,Liu Huiwen
There are still some problems on the traditional spin-coating preparation of silver nanowire transparent conductive films (AgNWs-TCFs), such as high junction resistance and uneven resistance distribution, due to the random distribution of the AgNWs in network. In this paper, a shear coating method was employed to prepare the aligned AgNWs-TCFs, which is used to reduce the junction resistance. The results revealed a significant anisotropic distribution of resistance, with a maximum transverse-to-longitudinal resistance ratio ( R y / R x ) of 4.31 at a solution temperature of 40 °C. Annealing treatments with twice could effectively eliminate the chemical residue PVP from the samples and resulted in optimal electrical performance, as well as possessed remarkable anisotropic resistance distribution for the aligned AgNWs-TCFs. However, the resistivity anisotropy of the aligned AgNWs-TCFs deteriorated after undergoing more than three annealing treatments. Additionally, this work indicated that the sheet resistivity significantly decreased in the aligned AgNWs-TCFs modified by SnO 2 nanoparticles produced through magnetron sputtering. The resistance’s directivity of aligned AgNWs-TCFs has important potential application in crystal directional growth with electric-field induction.
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Scientific Reports
·
2025
·Vol. 15
·期 1
·1-12
·
IF 3.9
Wang Yanbin,Zhao Jinqin,Ren Min,Wang Yupu,Ma Yuting,Zhang Ping,Li Huaming,Su Yuexiong,Su Qiong,Zhao Xiangfei
There are some drawbacks such as the propagation and spread of bacteria and viruses during the use of normal paper. Therefore, this work designed a starch styrene-acrylic antibacterial emulsion for improving the paper properties. The modified antimicrobial monomer was prepared by the subject-object recognition of β-cyclodextrin with hydrophobic modified titanium dioxide. The antibacterial performance of prepared emulsion was tested by Escherichia coli, Staphylococcus aureus. And the mechanical properties of the modified paper were measured according to the national standards. The results showed that the antibacterial emulsion has excellent comprehensive performance with the viscosity of 1750 mPa·s, the inhibition ring diameter of 11.82 mm, the good chemical stability and storage stability. Therefore, the proposed cationic starch styrene-acrylic antibacterial emulsion has promising applications in paper surface modification.
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高影响因子
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
·
2025
·
IF 1.6
Liu Zuohai,Li Xiang,Liu Daqian,Weng Xuchen,Huang Min,Liu Zhirong
During the tantalum ore smelting process, radioactive substances such as uranium and thorium accumulate in the slag, posing significant environmental risks if not properly treated. The traditional acid leaching method remains suboptimal for extracting these elements from tantalum slag. To address this limitation, this study employed aluminum salt as leaching aid, effectively enhancing uranium and thorium extraction efficiency. This approach offers a novel methodology for recovering uranium and thorium from refractory slag generated after tantalum ore smelting.
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Nature Communications
·
2025
·Vol. 16
·期 1
·1-15
·
IF 15.7
Li Wenbin,Duan Yijie,Ge Shaohua,Wu Wenbo,Song Keming,Zhang Jiyu,Tang Guochuan,Zhao Lingfei,Yan Pengfei,Wang Enhui,Zhang Zhiguo,Cao Yuliang,Yang Yong,Chen Weihua
The unstable electrolyte–electrode interface and the trace H 2 O in commercial organic electrolytes critically limit the cycling life of batteries. Herein, a locking-chain sodium 4,4′-(1,4-phenylenebis(oxy))-bis(butane-1-sulfonate)−15-crown-5 (15PBS) is designed for phase-to-interface electrolyte optimization. In the electrolyte phase, the strong hydrophilic sulfonate groups and 15-crown-5 in 15PBS effectively transform H 2 O from a reactive aggregated state (strong H-bond) into an inactive state (weak H-bond) through adsorption, effectively suppressing H 2 O-induced electrolyte decomposition. At the electrolyte–electrode interface, 15PBS preferentially adsorbed onto hard carbon, displacing solvents within the electric double layer to form insoluble phenyl-rich sulfide solid electrolyte interphase with fast Na + transport. Simultaneously, 15PBS facilitates the formation of stable cathode-electrolyte interphase on Na 0.72 Ni 0.32 Mn 0.68 O 2 , improving Na + migration kinetics and cycling reversibility. The hard carbon | |Na 0.72 Ni 0.32 Mn 0.68 O 2 full cell with high specific energy of 191.7 Wh kg −1 (based on the total active-material mass) delivers long lifespan of 2000 cycles at 500 mA g −1 . Moreover, 15PBS is compatible with ester-based electrolytes in lithium-ion batteries, enabling stable cycling of commercial graphite and Si/C negative electrodes. This work provides an effective approach for durable electrolytes towards safe and high-performance batteries.
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高影响因子
JOURNAL OF NANOPARTICLE RESEARCH
·
2025
·Vol. 27
·期 4
·1-14
·
IF 2.6
Zhu Yuan,Lu Peiqi,Liao Youwu,Adu-Frimpong Michael,Zou Zhihui,Jin Zhou,Wang Chengwei,Peng Min,Peng Houping,Xu Jingze,Xu Ying,Yu Jiangnan,Xu Ximing
This study aimed to prepare core–shell structural PLGA nanoparticles of astaxanthin (ASTA-PLGA@M) via micelle template for sustained release in vitro and long-term hepatoprotective effects in vivo. The morphology, mean particle size, zeta potential, polydispersity index (PDI), and drug loading efficiency of optimized formulation were investigated. Meanwhile, the physicochemical characterizations including X-ray diffraction (XRD) and attenuated total reflectance-Fourier transform infrared (ATR-FTIR) of ASTA-PLGA@M were evaluated to prove the successful encapsulation of astaxanthin. The in vitro release of astaxanthin from ASTA-PLGA@M in four different media was sustained slowly for 120 h. An in vivo release study also demonstrated that ASTA-PLGA@M nanoparticles enhanced oral bioavailability significantly. In addition, the hepatoprotective effects of astaxanthin on oxidative stress (OS) accompanied by apoptosis in acute hepatic damage caused by carbon tetrachloride (CCl 4 ) in mice were investigated. ASTA-PLGA@M nanoparticles provide a clear elevating effect on the activity of SOD and inhibit the increase of MDA during acute liver damage caused by CCl4. Moreover, histopathological analysis was conducted to study the long-term hepatoprotective effects of ASTA-PLGA@M for further application of astaxanthin in functional food or clinical use.
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