COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Jianan Song,Feng Wei,Beibei Chen,Guangxing Huang,Jiajia Meng,Kan Zhang
Line-plane CNT@MXene hybrids are constructed via electrostatic assembly. • CNTs effectively suppress MXene restacking and improve dispersion. • In-situ cross-linking drives filler rearrangement and network densification. • The composites exhibit high electrical and thermal conductivity with flexibility. • The composites enable strain sensing and thermal management capabilities. Flexible electronics require elastomeric composites that integrate efficient thermal management, electrical conductivity, mechanical compliance, and stable sensing capability. However, MXene-based composites are often limited by nanosheet restacking, filler aggregation, and poor network stability in elastomer matrices. Herein, a line-plane CNT@MXene hybrid filler was constructed by electrostatic self-assembly and incorporated into solution-cross-linked PDMS (S-PDMS) through a solution-driven in-situ cross-linking strategy. The CNTs bridged adjacent MXene nanosheets and suppressed their restacking, while solvent-evaporation-induced polymer chain shrinkage promoted filler rearrangement and network densification. As a result, the CNT@MXene/S-PDMS composite achieved an electrical conductivity of 0.126 S/cm and a thermal conductivity of 1.57 W·m −1 ·K −1 at 14.0 wt% filler content, while maintaining good stretchability and resilience. The composite also exhibited stable conductivity under repeated deformation, sensitive strain-sensing behavior, and effective heat-dissipation performance in LED thermal management. This work provides an effective strategy for constructing stable hybrid conductive networks in flexible polymer composites for integrated thermal management and strain sensing. Download: Download high-res image (168KB) Download: Download full-size image
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
·
IF 9.6
Hui Liu,Rong Lin,Yi Wu,Zhihao Huang,Yuchang Shen,Xuanxuan Lin,Nan Li,Shaoda Huang,Qipeng Li,Jinjie Qian
The rational design and facile synthesis of non‑platinum carbon catalysts with high energy conversion efficiency remain a core challenge in electrocatalysis. To address this, we successfully constructed a unique shell-in-shell catalyst through a phytic acid (PA) etching and secondary pyrolysis strategy, designated as CZIF-PA-Fe 2 P/NC. In this process, PA not only drives the selective etching of cubic ZIF-8 nanocrystals but also serves as an in situ phosphorus source to induce the uniform nucleation of highly active Fe 2 P nanoparticles embedded in ZIF-derived N,P-codoped carbon nanoboxes. Consequently, the obtained CZIF-PA-Fe 2 P/NC catalyst achieves an excellent oxygen reduction reaction (ORR) half-wave potential of 0.914 V, and maintains a 96.73% current retention over a 30-h stability test. When assembled into zinc-air batteries, the device delivers a peak power density of 157.58 mW cm −2 , a specific capacity of 795.76 mAh g −1 , and long-term cycling stability surpassing that of 20 wt% Pt/C. Finally, density functional theory calculations reveal that the synergistic electronic modulation between the N,P-codoped carbon substrate and Fe 2 P promotes an upward shift of the Fe d -band center, thereby optimizing the adsorption of key *OOH intermediates and significantly reducing the energy barrier of the rate-determining step. This work establishes a precise morphology design and interface engineering paradigm for developing cost-effective, high-performance metal-organic framework-derived non-noble-metal carbon electrocatalysts for energy conversion and storage applications. The selective etching of phytic acid not only endows the material with abundant pore diameters to enhance mass transfer but also serves as an in-situ phosphorus source to promote the uniform nucleation of highly active Fe 2 P nanoparticles. By employing PA-induced etching, shell-in-shell carbon catalysts were successfully fabricated to exhibit satisfactory oxygen reduction. Download: Download high-res image (196KB) Download: Download full-size image
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ENVIRONMENTAL RESEARCH
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2026
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IF 8.2
Shaozhen Dai,Yuqian Wang,Bin Xu,Peng Ding,Yu Zhou,Guansheng Han
Recycled aggregate concrete provides a sustainable route to reduce natural aggregate consumption and promote the recycling of construction and demolition waste. However, recycled aggregates generally contain residual old mortar, initial microcracks, and weak interfacial transition zones, which disturb the pore structure and increase cracking susceptibility under mechanical loading. Fiber reinforcement can improve crack resistance and toughness, but the reinforcing efficiency of polyvinyl alcohol (PVA) fibers is still limited by interfacial defects around the fiber–matrix transition zone. To address this issue, graphene oxide (GO)-coated PVA fibers were developed and incorporated into fiber-reinforced recycled aggregate concrete. Two coating methods, physical stirring and three-step dip coating, were compared. The coating morphology, elemental distribution, and chemical characteristics of the modified fibers were characterized using SEM–EDS, FTIR, and Raman spectroscopy. The results show that the three-step dip-coating method produced a more uniform and effective GO-based coating on the PVA fiber surface. Compared with the reference specimen, the compressive and flexural strengths of recycled aggregate concrete reinforced with three-step dip-coated GO-PVA fibers increased by 53.5% and 56.3%, respectively. Fractal dimension analysis and deep learning-assisted image analysis further indicate that GO-coated PVA fibers improved microstructural compactness, promoted tortuous crack propagation, and enhanced crack-bridging performance. Molecular dynamics simulations confirmed that GO nanosheets promoted interfacial stress transfer and energy dissipation, which supported the experimentally observed mechanical improvement. Life cycle assessment showed that although the GO coating process increased the production-stage environmental burden, the three-step dip-coating method exhibited better economic and environmental benefits after normalization by unit compressive strength. These findings demonstrate that GO-coated PVA fibers can simultaneously improve the mechanical performance and unit-strength environmental competitiveness of recycled aggregate concrete, providing a feasible strategy for developing high-performance and low-carbon cementitious composites.
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Petroleum Science
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2026
·
IF 6.4
Jia-Ning He,Yang Bai,Tuo-Ming Zhang,Deng Gu,Rui-Fang Wang
A composite plugging agent, glucose-derived carbon spheres grafted with poly(methyl methacrylate-co-octadecyl methacrylate-co-styrene) (GCS-g-PMOS), was synthesized by grafting an oil-absorbing polymer onto glucose-derived carbon spheres through suspension polymerization for application in oil-based drilling fluids. This material was designed to overcome the limited adaptability of conventional rigid plugging agents by integrating the structural support of carbon spheres with the swelling and filling capabilities of the polymer phase. Response surface methodology was used to optimize the preparation parameters, and the optimum formulation was determined to be 0.75 wt% glucose-derived carbon spheres, 1.5 wt% N , N ′-methylenebisacrylamide, and 2.0 wt% benzoyl peroxide. Under these conditions, the oil absorption capacity reached 9.02 g/g. Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and wettability analyses confirmed successful grafting of the polymer phase and showed that the composite possessed good thermal stability and strong oil affinity. After aging at 160 °C, the addition of 6 wt% GCS-g-PMOS reduced the American Petroleum Institute (API) filtrate loss from 4.4 to 2.4 mL and decreased the filter cake thickness from 2.0 to 0.9 mm. The material also exhibited effective plugging performance in media of different scales and reduced the permeability of the filter cake, with a maximum permeability reduction rate of 63.53%. These results demonstrate that the integration of rigid carbon spheres and an oil-absorbing polymer is beneficial for forming a dense sealing structure and enhancing fluid-loss control in oil-based drilling fluids under high temperature conditions.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Defan Wang,Yi Zhao,Xinxin Zhao,Chengfu Han,Kangkang Zhou,Yajie Zhang,Wei Zhai,Guoqiang Zheng,Jianwei Xu,Kun Dai,Chuntai Liu,Changyu Shen
PRPP integrates strain and humidity sensing functions on a single unified sensing platform. • Its distinctive porous structure endows PRPP with a broad strain range (0–80%) and low energy loss coefficient of 0.13. • PRPP shows excellent humidity-sensing performance and can serve for real-time human respiration monitoring. • The integration of humidity/pressure dual-mode PRPP sensor creates a broader platform for its application. Flexible pressure sensors with porous architectures have attracted extensive attention owing to their excellent stability and sensing performance, demonstrating great potential in applications such as electronic skin and healthcare monitoring. However, most existing sensors are often limited to single-modal signal transduction, and achieving synergistic multifunctionality within a unified signal platform remains a significant challenge. Humidity, as an essential environmental and physiological parameter, plays a vital role in enabling advanced interactive perception. Therefore, integrating high-performance humidity sensing with flexible pressure sensing has emerged as an important research direction. Herein, a polydimethylsiloxane (PDMS) composite foam (PRPP) modified with polypyrrole (PPy), reduced graphene oxide (rGO), and polydopamine (PDA) was fabricated through sequential in-situ polymerization combined with ultrasonication. The PRPP exhibits excellent mechanical resilience (1% plastic deformation after 500 compressions, 0.13 energy loss coefficient at 80% strain), rapid response/recovery time (80 ms/100 ms) and a low detection limit (0.1% strain). Benefiting from the in-situ growth of PPy, PRPP also shows remarkable humidity sensitivity, enabling real-time environmental monitoring. Furthermore, a dual-mode human-machine interface based on a PRPP array is developed for contact pressure sensing and non-contact humidity perception, providing a strategy for flexible sensors in intelligent interactive systems. A multifunctional flexible sensor is designed and fabricated. The flexible sensor simultaneously integrates strain sensing performance and humidity sensing performance within a unified platform via a rational functional integration strategy. The construction of multi-modal HMI interface realizes both contact and non-contact sensing. The integration of HMI interface and artificial intelligence algorithm provides excellent development prospects for the sensor in the fields of intelligent sensing, information transmission and human-computer interaction. Download: Download high-res image (139KB) Download: Download full-size image
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EUROPEAN JOURNAL OF MEDICAL RESEARCH
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2025
·Vol. 30
·期 1
·1-11
·
IF 3.4
Zhang Zihao,Ren Jiayi,Tang Ke,Hu Xinyi,Liu Jinhui,Li Chunming
Background Oral cancer (OC) is one of the major types of cancer and the most common cause of cancer-related mortality in Asia. In recent years, matrix stiffness in the tumor microenvironment has been found to play an important role in regulating tumor cell behavior. However, the regulatory mechanisms associated with matrix stiffness in OC cells remain unclear. Methods In this study, polyacrylamide gels with different stiffness were prepared to simulate low versus high matrix stiffness environments in tumor tissues by adjusting the acrylamide and cross-linker concentrations. Subsequently, the effects of different stiffness on OC cell survival, migration, invasion and invadopodia formation were explored based on cell counting kit-8 (CCK-8), Transwell and confocal microscopy. Meanwhile, the levels of markers relevant to phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT), apoptosis (BAX and BCL2) as well as metastasis (Cadherin-1, CDH1; Cadherin-2, and CDH2) were calculated via western blotting and real-time quantitative PCR. Results According to the results, high matrix stiffness was seen to contribute to the increased number of migrated and invaded cells as well as the enhanced viability of OC cells, along with the aggravated invadopodia formation and the up-regulation in CDH2 and BCL2 levels yet the down-regulation in CDH1 and BAX levels. Elevated PI3K/AKT phosphorylation levels were also seen in high matrix stiffness-mediated OC cells, and the intervention using LY294002 could visibly overturned the effects of high matrix stiffness on the cell migration, invasion and invadopodia formation of OC cells. Conclusions This study reveals that matrix stiffness may enhance the invasiveness and anti-apoptotic ability of OC cells by activating the PI3K/AKT pathway, which provides a new idea for exploring the microenvironmental regulation of tumor mechanics and targeted intervention strategies.
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ACS Photonics
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2025
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IF 6.7
Yingming Wang,Lingyan Xu,Lu Liang,Zhentao Qin,Shuai Han,Chongqi Liu,Lixiang Lian,Wei Zheng,Yanyan Lei,Qinzeng Hu,Tao Wang,Wanqi Jie
Achieving real-time, high-sensitivity radiation detection with stability and precision remains a critical challenge in medical diagnostics and radiation therapy. Here, we report the development of MDABCO-NH4(BF4)3 single crystals (SCs), a metal-free perovskite material with exceptional performance for both X-ray and charged particle detection. Large-scale MDABCO-NH4(BF4)3 SCs (15 × 13 × 5 mm3) were synthesized via a simple low-temperature solution method, achieving superior crystallinity with a full width at half-maximum (fwhm) of 0.0061°. The MDABCO-NH4(BF4)3 detectors exhibit high resistivity (1.31 × 1012 Ω·cm), low trap density (1.09 × 109 cm–3), and excellent charge transport properties ((μτ)h = 3.15 × 10–5 cm2·V–1). For α-particle detection, the MDABCO-NH4(BF4)3 detectors achieve a high energy resolution of 35.0% at 5.49 MeV and a fast response time of 5 ms, demonstrating single-particle sensitivity. For X-ray detection, MDABCO-NH4(BF4)3 detectors exhibit high sensitivity (13,529 μC·Gyabs–1·cm–2) and an ultralow detection limit (17.1 nGyair·s–1), significantly lower than the 5.5 μGyair·s–1 standard for active personal dosimeters used in regular medical diagnostics. The combination of superior charge transport properties with stability and high signal-to-noise ratio establishes MDABCO-NH4(BF4)3 SCs as a versatile material for real-time radiation monitoring and high-precision medical imaging applications.
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Materials
·
2018
·Vol. 11
·期 10
·2063
·
IF 2.467
Xuejing Song,Lingqian Kong,Hongmei Du,Xiangyu Li,Hanlin Feng,Jinsheng Zhao,Yu Xie
Pyrazine derivatives quinoxaline and pyridopyrazine were selected as the acceptors, and benzocarbazole was used as the donor to synthesize four different D–A–D compounds. The results showed that 2,3-bis(decyloxy)pyridine[3,4-b]pyrazine (DPP) exhibited stronger electron-withdrawing ability than that of 2,3-bis(decyloxy)quinoxaline (DPx), because DPP possesses one more nitrogen (N) atom, resulting in a red-shift of the intramolecular charge transfer (ICT) absorption bands and fluorescent emission spectra for compounds with DPP as the acceptor compared with those that use DPx as the acceptor. The band-gap energy (Eg) of the four D–A–D compounds were 2.82 eV, 2.70 eV, 2.48 eV, and 2.62 eV, respectively, for BPC-2DPx, BPC-3DPx, BPC-2DPP, and BPC-3DPP. The solvatochromic effect was insignificant when the four compounds were in the ground state, which became significant in an excited state. With increasing solvent polarity, a 30–43 nm red shift was observed in the emissive spectra of the compounds. The thermal decomposition temperatures of the four compounds between 436 and 453 °C had very high thermal stability. Resistor-type memory devices based on BPC-2DPx and BPC-2DPP were fabricated in a simple sandwich configuration, Al/BPC-2DPx/ITO or Al/BPC-2DPP/ITO. The two devices showed a binary non-volatile flash memory, with lower threshold voltages and better repeatability.Keywords:pyrazine;quinoxaline;benzocarbazole;donor-acceptor-donor;photoelectric properties;electromemory
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
·
IF 9.7
Hongjiang Peng,Yanyu Song,Gongjie Hua,Jinhong Wu,Fuwen Liu,Kuangfei Lin,Cong Lu
Peroxymonosulfate (PMS) activation through non-radical pathways exhibits high efficiency and selectivity for pollutant degradation. However, the complex regulation of catalytic active centers makes the generation of 1 O 2 challenging. In this work, Beta zeolite with uniformly dispersed Al-Ov-Co active sites (Co-Beta zeolite) was synthesized via a simple impregnation method, which exhibits excellent 1 O 2 steady-state generation concentration (2.46 × 10 −11 M) at extremely low doses (0.05 g/L). Compared with the original Co 3 O 4 , Co-Beta zeolite displays significantly enhanced PMS activation efficiency, and the apparent reaction rate constant for degrading tetracycline hydrochloride (CTC) increases by 4.7 times. Pyridine infrared characterization confirms that cobalt ions occupy the Brønsted acid sites of the Beta zeolite and undergo proton exchange with them. Accompanied by the redistribution of electrons during the calcination process, some lattice oxygen in the material is removed to form Al-Ov-Co sites. The proportion of Co 2+ in the Al-Ov-Co sites dramatically increases, thereby ensuring efficient activation of PMS. As PMS is adsorbed onto the Al-Ov-Co sites, the H atom of PMS directly bonds with the O atom in Co-Beta zeolite, while the O atom in PMS forms a bond with Co 2+ . After the H O and S O bonds of PMS are broken, abundant 1 O 2 is produced. In practical application evaluation, Co-Beta zeolite shows satisfactory anti-interference ability, reliable cycling stability and acceptable metal leaching. This work inspires the design of highly-dispersed Co 2+ to promote non-radical pathways for PMS-activated water purification.
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Colloids and Interfaces
·
2025
·Vol. 9
·期 6
·85
·
IF 3.2
Jun Wang,Hao Lin,Qizhong Chan,Yaohong Zhao,Xiaohui He
Liquid organic hydrogen carriers (LOHCs) are promising materials for safe, reversible, and high-density hydrogen storage. Atomically dispersed bimetallic Pt–Sn nanocluster catalysts supported on TiO2(Pt–Sn/TiO2) were developed to enhance the hydrogenation step in the toluene-methylcyclohexane cycle, a model LOHC system. Compared with monometallic Pt/TiO2and Sn/TiO2, Pt–Sn/TiO2exhibited superior hydrogenation performance. Mechanistic studies, including X-ray photoelectron spectroscopy, kinetic analysis, and H2-D2exchange experiments, revealed that Sn incorporation modulates the electronic structure of Pt, enhancing H2activation and spillover. These findings provide insights into the rational design of atomically dispersed bimetallic nanocluster catalysts for efficient and durable hydrogen storage in LOHC-based systems.
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SENSORS AND ACTUATORS B-CHEMICAL
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2025
·
IF 7.7
Wanlai Zhu,Guorui Zhou,Zao Yi,Hui You,Dongying Wang
Fiber optic sensors exhibit unique advantages in environmental monitoring and biomedicine, yet conventional designs face limitations in detection limits and sensitivity. To overcome these challenges, a tapered seven core fiber (SCF) sensing system based on dispersion turning point (DTP) modulation and surface modification enhancement is innovatively proposed in this work. The wavelength sensitivity near the DTP approaches infinity, and the DTP can also serve as an intrinsic self-referencing point during sensing. In humidity (1–92 %RH) sensing, the bare fiber achieved a wavelength sensitivity of 0.2025 nm/%RH and an intensity sensitivity of 0.086 dB/%RH near the DTP. In volatile organic compounds (VOCs) detection, silica sol-gel surface modification amplified the response to polar molecules by 2–4 times, enabling ppb-level pollutant sensing. Specifically, the maximum wavelength sensitivity for ethyl acetate exceeded 1094.2 pm/ppm. This study provides a novel integrated solution for the detection of low-concentration VOCs, offering broad application prospects.
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POWDER TECHNOLOGY
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2025
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IF 4.6
Mianyan Yang,Zhongqi Wei,Zhijun Zhang
The effect of liquid surface tension on the detachment behavior of bubbles and different hydrophobic glass beads was investigated. By measuring the receding contact angle, induction time and detachment force, the mechanism of liquid surface tension on the detachment of bubbles and different hydrophobic glass beads was revealed. The results showed that when liquid surface tension was decreased from 72.86 ± 0.05 mN/m to 71.76 ± 0.04 mN/m, there were slight changes in receding contact angle, induction time and critical detachment force of different hydrophobic glass beads. This indicates that liquid diffusion and wetting on the glass bead surface were limited, and had a minimal effect on detachment behavior in a certain range of liquid surface tension. However, when the liquid surface tensions were 58.16 ± 0.12 mN/m and 41.74 ± 0.22 mN/m, the liquid diffusion and wetting on the different hydrophobic glass bead surfaces were enhanced. The receding contact angle and critical detachment force between bubbles and glass beads were decreased. It indicates that the extension of three-phase contact line (TPCL) between bubbles and different hydrophobic glass beads was hindered, thereby decreasing the stability of the aggregates. This research provides guidance on selecting optimal surface tension for separating different hydrophobic particles, therefore improving flotation performance.
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