LANGMUIR
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2026
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IF 4.4
Yue Xu,Jingshi Liang,Yanwei Du,Chunling Zhang,Zhihui Zhang,Bo Liu
The overuse of antibiotics has accelerated the emergence and spread of drug-resistant microorganisms, creating an urgent need for anti-infective materials with integrated therapeutic and monitoring functions. Herein, a leaf-inspired porous layered hydrogel, HEVCTM, was developed for photothermal antibacterial treatment and flexible sensing. The precursor hydrogel, HEVCTM, was first prepared by one-pot free-radical polymerization of the hydrophilic functional monomer VIM-CAT, the hydrophobic monomer TBA-MA, and N-hydroxyethyl acrylamide (HEAA). After immersion in AgNO3 solution, spatially selective formation of Ag/Ag2S was induced within the hydrogel. Specifically, Ag+ was in situ reduced to metallic Ag by the surface-enriched hydrophilic VIM-CAT, while Ag2S was generated in the middle region under the induction of hydrophobic TBA-MA, leading to the spontaneous formation of a sandwich-like layered architecture. Owing to the introduction of Ag2S, the hydrogel exhibited an enhanced near-infrared (NIR) photothermal response and achieved antibacterial efficiencies of 99% against Escherichia coli and 98% against Staphylococcus aureus. Meanwhile, the surface Ag layer endowed the hydrogel with good electrical conductivity and stable strain sensitivity, enabling real-time monitoring of human motions, including finger bending, frowning, and wrist bending. This work provides a simple strategy for constructing layered hydrogels with integrated photothermal antibacterial and flexible sensing functions and offers new insight into anti-infective flexible electronics.
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PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Yandong Che,Qianpeng He,Aoyun Yuan,Jie Zhou,Jiacheng Ding,Tõnu Pullerits,Qian Zhang,Yanqiu Yang,Wenjie Li,Peng Song
Integrating pollutant detection and degradation into a single material platform is highly desirable for the efficient treatment of dye-contaminated wastewater. However, simultaneously achieving sensitive detection and efficient photocatalytic activity remains challenging because these functions involve distinct interfacial processes. In this work, an Ag NPs@Cu-V 2 O 5 hybrid was prepared through wet-chemical synthesis and calcination of Cu-V 2 O 5 , followed by ultrasonic coupling with preformed Ag nanoparticles. Cu incorporation modulated the local electronic environment of V 2 O 5 , while the supported Ag nanoparticles provided plasmonic SERS-active sites. XPS binding-energy shifts were consistent with interfacial electronic redistribution, FDTD simulations revealed pronounced local-field amplification around the Ag nanoparticles, and energy-level analysis indicated accessible interfacial charge-transfer pathways under 532 nm excitation. Using colorless, non-resonant 4-MBA as a control probe, the hybrid produced a higher Raman response than the Ag NP reference under equivalent Ag loading, indicating that the enhancement was not solely dependent on the molecular pre-resonance behavior of MB. The hybrid enabled MB detection down to 1 × 10⁻⁹ mol L⁻¹ , with good spatial uniformity and approximately 80% signal retention after 28 days. After correction for dark adsorption, it achieved an MB degradation efficiency of 82.3% after 60 min of visible-light irradiation and exhibited higher photocatalytic activity than pristine V 2 O 5 and Cu-V 2 O 5 . These results demonstrate a plasmonic–semiconductor platform that integrates SERS sensing and photocatalytic remediation through Ag-induced local-field amplification, Cu-related electronic modulation, and Ag/Cu-V 2 O 5 interfacial interactions.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Xueyan Chen,Hua Deng,Min Chen,Xiaoxiao Qin,Ling Wang,Changbin Zhang
Supports play a pivotal role in noble metal-supported catalysts by regulating the dispersion, electronic structure, and interfacial interactions of active species, as well as influencing the adsorption and activation of reactants. Herein, we demonstrated that the coordination structure of oxide supports critically dictates the catalytic performance of Ag-based catalysts in formaldehyde (HCHO) oxidation. Although Ag/Al 2 O 3 and Ag/TiO 2 possessed comparable Ag particle sizes, oxidation states, and redox properties, their activities differed substantially: Ag/Al 2 O 3 achieved complete HCHO conversion at 80 °C, while Ag/TiO 2 required 170 °C under identical conditions. In situ DRIFTS results revealed that HCHO was transformed into formate intermediates on both supports, but Al 2 O 3 stabilized two distinct formate configurations, whereas TiO 2 favored a single adsorption mode. More importantly, formates on Ag/Al 2 O 3 decomposed at much lower temperatures than those on Ag/TiO 2 , suggesting enhanced intermediate reactivity. Density functional theory (DFT) calculations confirmed that the diverse coordination environments of surface Al atoms enable multiple formate adsorption modes with lower C H bond dissociation barriers compared to Ti sites. These results establish that the support coordination structure governs intermediate configurations and their transformation kinetics, offering mechanistic insights into the superior oxidation activity of Ag/Al 2 O 3 and providing guidance for the rational design of efficient Ag-based catalysts for HCHO purification.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Yueyan Zhang,Cairong Du,Hongliang Wei,Xiaolong Liu,Yu Liu,Qiaoran Zhang,Gang Wang,Tao Guo,Meng Yan,Xiping Yang
The ideal flexible hydrogel sensor should combine excellent mechanical properties, high conductivity, and effective antibacterial activity to prevent bacterial growth. To address the limitations of traditional hydrogel sensors, such as insufficient flexibility, poor adhesion, and dependence on external energy during radical polymerization, this study developed a novel hydrogel based on a tannic acid-silver ion (TA-Ag + ) dynamic dual self-catalytic system. Through catalytic rapid radical polymerization, a double-network (DN) hydrogel was rapidly prepared at room temperature. This DN conductive hydrogel exhibits remarkable stretchability (up to 3000 % strain), high electrical conductivity (17.57 S/m), and self-adhesive capability, with measured maximum adhesion strengths on various substrates as follows: ceramic, 45.8 kPa; stainless steel, 43.62 kPa; glass, 43.43 kPa; aluminum, 37.07 kPa; acrylic plastic, 42.44 kPa; cardboard, 26.75 kPa; fresh porcine skin, 14.66 kPa. The TA and in situ generated silver nanoparticles within the system confer significant antibacterial properties to the hydrogel, with inhibition zones exceeding 20 mm against both Staphylococcus aureus and Escherichia coli . The introduction of LiCl enhances the water retention rate of the hydrogel by more than 20 %. The incorporation of methyl cellulose improves the biocompatibility of the material and promotes the formation of a denser cross-linked network and ion channels, thereby enhancing both tensile resistance and electrochemical performance. Experimental results demonstrate that the hydrogel can be applied in real-time monitoring of human joint movements, including finger, wrist, and elbow flexion, neck motion, and even large-range activities of the knee joint during vigorous exercise. These findings indicate that the material holds broad application prospects in the fields of wearable sensing and health monitoring.
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RESEARCH ON CHEMICAL INTERMEDIATES
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2026
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IF 3.3
Xiang Yulong,Ji Xinbin,Dong Xiaoli,Wang Yu,Zheng Nan,Luo Yang,Zhao Honglin,Yan Chumin
Charge separation, transfer, and recombination are crucial factors that influence the efficiency of photocatalytic Cr(VI) reduction. The construction of Schottky junctions can remarkably facilitate the spatial separation of charge carriers. To address the issue of heavy metal pollution in industrial wastewater, an Ag-DUT-67 Schottky junction photocatalyst was synthesized by depositing silver nanoparticles (Ag NPs) onto the DUT-67 surface through a photoreduction technique. The findings indicate that Ag NPs are evenly distributed and coordinated with the sulfur atoms in the DUT-67 ligands. This modification not only elevates the oxygen vacancy content but also broadens the light response range. A Schottky barrier is established at the Ag-DUT-67 interface, which effectively reduces carrier recombination. Notably, Ag-DUT-67–2 demonstrates a remarkable Cr(VI) reduction efficiency of 98% within 30 min, with a reaction rate that is 3.4 times as much as pristine DUT-67. Additionally, Ag-DUT-67–2 shows excellent stability in high-concentration Cr(VI) solutions and in the presence of interfering ions, coupled with good recyclability. This study offers a novel framework of interface engineering and performance enhancement of MOF-based photocatalysts for heavy metal reduction.
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高影响因子
ACS Applied Materials & Interfaces
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2026
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IF 7.8
Zhenfeng Li,Yifan Zhao,Zixu Wang,Jinyang Li,Chenglong Zhou,Peng He,Shuye Zhang
Oxidation susceptibility and insufficient service reliability remain major limitations for Cu-based conductive inks in flexible electronics. Here, size-tunable Cu@Ag core-shell nanoparticles were processed by millisecond intense pulsed light (IPL) sintering to establish a rapid route toward conductive and durable flexible electrodes. Comparative finite-element thermal analysis and electrical measurements establish a practical IPL processing window, while electron microscopy and complementary diffraction analysis support energy-dependent interparticle connection and localized Cu-Ag interfacial reconstruction without assuming homogeneous alloying throughout the film. The sheet resistance reaches a minimum of 0.06 Ω/sq at 5.0 J/cm2, whereas 4.5 J/cm2 is selected as the practical baseline because it provides a more favorable balance among conductivity, film integrity, environmental stability, flexibility, adhesion, and limited cumulative substrate heating. Films processed within this window maintain low resistance during damp-heat and cryogenic exposure and exhibit stable electrical behavior during repeated bending. At the device level, the 4.5 J/cm2 electrode enables a contact-separation triboelectric nanogenerators (TENG) with an open-circuit voltage of 275.45 V and a peak power density of 0.71 W/m2. In otherwise identical alternating-current electroluminescent (ACEL) devices, increasing the electrode-processing energy from 1.5 to 4.5 J/cm2 markedly increases luminance, directly linking the IPL-defined electrode state to device performance. The integrated patterned platform further enables tactile-position visual feedback. These results establish an evidence-based processing-thermal response-structure-reliability-device relationship for IPL-sintered Cu@Ag NPs flexible electrodes.
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2026
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IF 8.3
Rongpei He,Zhongxu Li,Ran You,Yujie Xiao,Xiaoyuan Xu,Bing Yan,Juan Du,Baozhan Zheng
Surface-enhanced Raman scattering (SERS) has widespread applications for sensitive detection due to its non-destructive nature, but is still limited by the lower signal sensitivity and reproducibility caused by uncontrolled hotspot distribution on substrates. To address this challenge, a reliable and highly sensitive SERS substrate was developed by in-situ fabrication of well-defined Au-core Ag-shell nanocubes (Au@Ag NCs) on eggshell membrane (ESM-Au@Ag). Notably, the precisely controlled size and morphology of Au@Ag NCs by tuning the synthesis conditions led to significantly enhanced SERS performance. The obtained ESM-Au@Ag exhibited remarkable SERS activity, excellent signal reproducibility, and good stability for crystal violet (CV) detection, achieving an ultralow limit of detection of 1.0 × 10⁻ 10 mol·L −1 and a high analytical enhancement factor of 1.6 × 10 8 . Finite-difference time-domain (FDTD) simulations revealed that this superior performance originates from the significantly localized electromagnetic field enhancement at the sharp edges/corners of the nanocubes, along with their uniform distribution on ESM substrate. Furthermore, the ESM-Au@Ag also showed high sensitivity toward multiple analytes, including Rhodamine 6 G, trinitrophenols, and adenine, indicating its potential for practical applications in environmental monitoring, food safety, clinical diagnosis, and public security. This work opens up a new avenue for designing high-performance SERS substrates with exceptional sensitivity, reproducibility, and stability.
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高影响因子
TALANTA
·
2026
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IF 6.7
Xue Cheng,Shuaishuai Wei,Yu Li,Gengli Huang,Yuxing Yan,Zhouping Wang
Nanozyme-based aptasensors still face challenges, including low catalytic activity and inverse signal correlation, which hinder their advancement in the field of food safety. To address these issues, this study developed a novel nanozyme-based colorimetric aptasensor for the high-performance detection of AFB1. Initially, a gold-silver alloy nanoframework (Au-Ag NFs) was synthesized using liposomes as a template, followed by the deposition of platinum nanoclusters on its surface, resulting in the successful preparation of the Au-Ag NFs@Pt NCs nanozyme. This nanozyme exhibited outstanding oxidase-like activity, efficiently catalyzing the oxidation of TMB, leading to a significant increase in absorbance at 652 nm and a visually observable blue color. The AFB1-specific aptamer was covalently immobilized onto the nanozyme surface through Au-S bonds, forming the Au-Ag NFs@Pt NCs@apt complex and enabling the construction of an integrated “recognition-catalysis” sensing system. Upon target recognition by the aptamer, conformational changes in the Au-Ag NFs@Pt NCs @apt-target complex reduced the masking effect of the aptamer on the surface of the nanoenzyme, thereby enhancing oxidase-like activity. Ultimately, this colorimetric aptasensor achieved an enzyme-like “turn-on” detection of AFB1. The aptasensor achieved a detection limit as low as 22.3 pg/mL, and demonstrated excellent selectivity, stability, and satisfactory recovery in spiked peanut samples. This work not only provides a promising new approach for on-site rapid screening of AFB1, but also offers novel composite material insights for designing high-performance nanozyme sensing platforms targeting other analytes.
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PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Qiang Zhang,Peiyuan Liu,Zhiwei Yang,Yanjun Liang,Jian Zhang,Lin Wang,Xiao Huang
The coproduction of freshwater and electricity through solar-driven interfacial evaporation presents a promising strategy to address the current water and energy shortages. However, achieving high evaporation rate, efficient pollutant degradation, and high electrical power output in an integrated system remains challenging. Herein, we report a multifunctional membrane evaporator based on Sb 2 Se 3 /MoSe 2 /Ag heterostructures embedded in a polyacrylamide (PAM) hydrogel (Sb 2 Se 3 /MoSe 2 /Ag@PAM) for simultaneous wastewater evaporation, decontamination and thermoelectric power generation. The porous PAM matrix provided hydrophilicity and low evaporation enthalpy, while the heterostructures synergistically enhanced light absorption, photocatalytic activity, and thermal localization. As a result, under 1.0 sun illumination, the integrated membrane evaporator achieved a steady evaporation rate of 3.39 kg m −2 h −1 and a high degradation efficiency of 92% for tetracycline (TC) within 120 min, and when coupled with a thermoelectric module produced electricity with a maximum output power of 0.37 W·m −2 . Our work offers a new hybrid material platform comprising narrow bandgap semiconductor heterostructures, plasmonic noble metals and hydrogel membranes for high-performance multifunctional evaporators.
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高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Gujie Yao,Xilai Wang,Yanyan Feng,Xiaoqing Wang,Da Jin,Xue you Wen,Zhixiang Fu,Tianxiang Guo
A promising dual-coping Ag,S-Cu x O/Cu foam electrocatalyst was synthesized for CO 2 RR. • The synergistic effect of Ag and S for CO 2 RR toward HCOOH and CH 3 OH was elucidated. • The Ag-S synergistic mechanism governing HCOOH and CH 3 OH formation was revealed. The electrochemical reduction of CO 2 into value-added fuels such as formic acid and methanol presents a promising approach to mitigating climate change, yet it is constrained by the rational design of efficient electrocatalysts and the understanding of structure-efficiency relationships. Here, a highly efficient Ag,S-Cu x O/Cu catalyst was developed via a facile in situ dual-doping strategy, incorporating Ag and S onto pre-oxidized copper foam. Comprehensive multimodal characterization (SEM, EDS, XRD, XPS, AES) and electrochemical measurements (LSV, EIS, GC, 1 H NMR) were conducted to elucidate the catalyst’s structural properties and CO 2 reduction performance. Results indicate that Ag/S dual doping synergistically enhances catalytic activity by reducing solution mass transfer resistance through improved catalyst nanostructures and expanding the electrochemical active surface area (ECSA). Ag incorporation effectively suppresses the competitive hydrogen evolution reaction (HER), while S incorporation lowers charge transfer resistance ( R ct ). Compared with the Cu x O/Cu foam catalyst, the Ag,S-Cu x O/Cu foam catalyst exhibits increased partial current densities for formic acid (HCOOH) and methanol (CH 3 OH) by 17.09 and 5.70 mA·cm −2 , respectively. Furthermore, the reaction pathways for the electrochemical conversion of CO 2 to HCOOH and CH 3 OH are systematically elucidated. This study proposes a dual-doping strategy to achieve sustainable CO 2 electroreduction and delivers fundamental insights into the external parameters that govern the selective formation of high-value products. Download: Download high-res image (142KB) Download: Download full-size image
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高影响因子
MICROCHEMICAL JOURNAL
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2026
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IF 5.2
Liman Fang,Xuanzhu Chen,Jiaxu Shao,Wenlong Xiang,Sinan Feng,Qianmin Tu,Ruiyun You,Chenjun Fang,Xiaowei Yu,Yongbiao Zheng
Nylon shrinkage effect generates dense SERS hotspots. • Ultrahigh sensitivity, achieving a detection limit of 10 −9 M for the probe molecule R6G. • Excellent uniformity and reproducibility, with a relative standard deviation (RSD) of 5.14% across 50 random spots. • Superior long-term stability, retaining 89.23% of the initial SERS signal after 30 days of storage. • Paste-and-peel method for in-situ CBZ detection on fruit. To address the widespread issue of carbendazim (CBZ), a common pesticide residue, on the surfaces of fruits and vegetables, our research team prepared silver nanoparticles using the sodium citrate reduction method and successfully loaded them onto a nylon membrane substrate via vacuum-assisted filtration. Subsequently, the substrate was modified with 4-mercaptobenzoic acid (4-MBA) as an internal standard signaling molecule, yielding a Nylon-Ag@4MBA flexible surface-enhanced Raman spectroscopy (SERS) substrate. The as-prepared Nylon-Ag@4MBA substrate exhibited excellent uniformity (RSD = 5.14%), a detection limit as low as 10 −9 M for the R6G probe molecule, and a signal retention rate of 89.23% after 30 days of storage. In the detection of actual samples such as apples, the recovery rates of CBZ ranged from 95.05% to 96.90% with relative standard deviations (RSDs) below 4.07%, demonstrating reliable quantitative capability. No interference was observed from common substances on the fruit peel. This study confirms the potential application of the Nylon-Ag@4MBA substrate for the on-site rapid detection of pesticide residues. Download: Download high-res image (81KB) Download: Download full-size image
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Chenyun Gao,Kangning Zhu,Yin Zhu,Yuanzheng Qiu,Changcheng Ke,Ling Yang
Embodied AgTPMbot was synthesized with hydrophilic TPM half-coated hydrophobic AgNP. • Dog-sledding driving-force makes AgTPMbot fast self-propel in TPM-forward mode. • Bot has high energy efficiency with optimal coupled surface interaction and fluid dynamics. • AgTPMbot gargle has superior active antimicrobial treatment effect of periodontitis. • Eradication of biofilm and pathogenic bacteria remodels immune-metabolic homeostasis. Characterized with dynamic reaction on the fly, chemically-driven microbots, the microscale embodied intelligent agents (MEIagents), have attracted tremendous attention for their ability to learn and perform tasks through interaction with surroundings. However, molecular mechanisms of how surface-engineering modulates microrobots performance remains unresolved. Here, we synthesized embodied Ag-based microrobots (AgTPMbots) by using heterogeneous nucleation method where pre-synthesized hydrophobic rose-like silver nanoparticles (AgNPs) half-coated with hydrophilic polymerized 3-trimethoxysilyl propyl methacrylate (TPM) via UV-induced radical polymerization. Surface engineering makes AgTPMbots have dog-sledding synergistic driven-force and self-propel at high speed of 38 µm s -1 in 1.5% H 2 O 2 solution with TPM-forward mode, and outrun swimming speed of bacteria. Energy conversion efficiency of AgTPMbots is 30~259 times by that of AgNPs due to enhanced catalysis integrated with optimal coupling between chemical energy, interfacial interaction and fluid dynamics, as well as prompted bubble formation on concave Ag surface. With mechanical disruption, ROS, Ag + and reshaped rich O 2 microenvironment, AgTPMbot gargle shows superior active antimicrobial treatment efficiency in SD rats periodontic model as the eradication of biofilm and anaerobic pathogenic bacteria remodeling periodontal immune-metabolic homeostasis. Such surface engineering tailored mobility, interaction with surroundings and application performance of microrobots provides a molecular paradigm for engineering MEIagents. Download: Download high-res image (238KB) Download: Download full-size image Underlying molecular mechanisms of highly efficient Ag-based microrobots and good performance in active antimicrobial treatment of periodontitis.
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