COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Min Gao,Xiao Yang,Weiya Jia,Linxin Liu,Guihua Lu,Lai Wei,Bei Zhang,Can Li,Feng Zhao
Surface-enhanced Raman spectroscopy (SERS) has attracted considerable attention owing to its high sensitivity, long-term stability, and non-destructive detection capabilities. However, achieving both high sensitivity and reproducible signal output within a single SERS substrate remains a significant challenge in recent years. In this study, a highly sensitive and reproducible SERS substrate was successfully designed and fabricated based on Ag/ZnO spherical shell ordered arrays, leveraging the synergistic effects of localized surface plasmon resonance and charge transfer mechanisms, both of which contribute effectively to Raman signal enhancement. The SERS performance of the substrate depended on the thickness of the ZnO layer, with a maximum enhancement factor of 2.68 × 10 8 achieved using a 30 nm ZnO layer and rhodamine 6 G as the probe molecule. A detection limit as low as 10 −9 M was attained while maintaining a relative standard deviation below 6%. This exceptional performance arises from the synergistic contribution of the intense localized electromagnetic field generated by the spherical-shell architecture and the efficient charge transfer pathways enabled by the multifunctional Ag/ZnO bilayer structure. This work presents a promising strategy for the development of recyclable and ultra-sensitive SERS sensors applicable to biomolecular detection and organic pollutant monitoring. Download: Download high-res image (158KB) Download: Download full-size image
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高影响因子
CERAMICS INTERNATIONAL
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2026
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IF 6
Runduo Teng,Changhao Feng,Yanting Wang,Wenjun Tu,Tianyu Lan,Qiyuan Fu,Jingyu Long
N-butanol is widely used in fields such as chemical engineering and pharmaceutical synthesis; therefore, trace-level, highly sensitive detection of n-butanol is of great significance. In this study, an n-butanol gas sensor based on silver (Ag)-decorated yttrium ferrite (YFeO 3 ) nanotubes was fabricated using the electrospinning followed by the impregnation method. Compared with the pure YFeO 3 , the Ag-decorated YFeO 3 nanotubes exhibited an enhanced response of 162.06 toward 10 ppm n-butanol. This remarkable gas-sensing performance is primarily attributed to the synergistic effects of the mixed-valence states of iron, abundant surface oxygen vacancies, and the Ag spillover effect. Moreover, it exhibits excellent long-term stability and a detection limit as low as 76.5 ppb. These results indicate that Ag-decorated YFeO 3 nanotubes hold significant potential for trace n-butanol detection.
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MICROCHIMICA ACTA
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2026
·Vol. 193
·期 8
·522
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IF 5.4
Qiao Yuchun,Wu Yiying,He Jiahui,Chen Wen,Fan Jiaqi,Zhang Zhicong,Shen Jialu,Su Mengping,Wang Qidong,Li Shuai,Shen Yingjie,Shang Jizhen,Wang Hua
Glucose is a vital energy source, and its accurate monitoring is crucial for the diagnosis and management of metabolic diseases. Herein, we report a simple colorimetric sensing platform for glucose detection based on MnO 2 /Au-Ag nanozymes, glucose oxidase (GOx), and 3,3′,5,5′-tetramethylbenzidine (TMB). In this cascade system, GOx catalyzes the oxidation of glucose to generate H 2 O 2 , which is subsequently decomposed by MnO 2 /Au-Ag to produce reactive species that oxidize TMB, yielding a visible blue signal. The incorporation of Au-Ag nanoparticles provides additional catalytic sites and promotes interfacial electron transfer, thereby enhancing the catalytic performance of MnO 2 . The platform exhibits a linear response over 0.025-0.20 mM with a detection limit of 0.012 mM. It enables reliable glucose detection in artificial sweat and 80-fold diluted serum samples. In addition, portable nitrocellulose test strips were developed for visual and smartphone-assisted glucose detection. This strategy provides a simple and portable approach for low-concentration glucose analysis and offers potential for point-of-care applications after further validation. Graphical
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PubMed
高影响因子
RARE METALS
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2026
·Vol. 45
·期 9
·e70521
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IF 12.1
Wei Jiang,Bonan Sun,Qian Li,Wen Xia,Qianqian Liu,Peng Han,Hao Wang,Juanwen Cao,Xu Li,Shenghan Lou
en This link goes to a English section zh This link goes to a Chinese section Conductive hydrogels show great potential in flexible electronics and biomedical devices, yet their practical applications are often hindered by insufficient mechanical strength, poor environmental stability, and limited functionality. To address these challenges, this study has developed a hydrogel platform that integrates diagnosis and treatment, enabling real-time monitoring and sealing of gastrointestinal defects. Through a well-designed multi-dynamic network, the hydrogel integrates tissue-like stretchability (fracture strain up to 1420%), strong wet adhesion (adhesion strength 43 kPa), and broad-spectrum antibacterial activity. Leveraging its unique hybrid ionic electronic conductive network, the material enables simultaneous capture of electrophysiological signals (ECG and EMG) and mechanical motions (intestinal peristalsis, cardiac contraction, and gastric activity), achieving multimodal physiological monitoring. Remarkably, while providing a continuous and stable signal sensing, the hydrogel effectively seals gastrointestinal defects, demonstrating excellent defect sealing capability. This work presents a hydrogel platform that breaks through the limitations of conventional single-function materials, offering an innovative solution for closed-loop intelligent diagnostic therapeutic systems, with significant potential in next-generation bioelectronic medicine. 摘要 en This link goes to a English section zh This link goes to a Chinese section 导电水凝胶在柔性电子和生物医学器件领域展现出巨大潜力,但其实际应用常常受到机械强度不足、环境稳定性差以及功能有限等问题的制约。为了解决这些挑战,本研究开发了一种集诊断与治疗于一体的水凝胶平台,可实现胃肠道缺损的实时监测与封闭。通过精心设计的多重动态网络,该水凝胶兼具类组织的高延展性(断裂应变最高可达1420%)、优异的湿态黏附性能(黏附强度为43 kPa)以及广谱抗菌活性。得益于其独特的离子与电子混合导电网络,该材料能够同时采集电生理信号(如心电和肌电)以及机械运动信号(如肠蠕动、心脏收缩和胃部活动),从而实现多模态生理监测。值得注意的是,在提供连续稳定信号感知的同时,该水凝胶还能有效封闭胃肠道缺损,表现出优异的缺损封闭能力。该研究提出了一种突破传统单一功能材料局限的水凝胶平台,为构建闭环式智能诊疗系统提供了创新性解决方案,在下一代生物电子医学中具有重要应用潜力。
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高影响因子
Advanced Optical Materials
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2026
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IF 7.2
Wanling Mao,Siyong Wang,Li Zhang,Yujia Luo,Yuyao Feng,Yunhai Xiong,Yixuan He,Yuhui Dong,Yousheng Zou,Haibo Zeng
Low-toxicity quantum dots (QDs) based on group I-III-VI elements have attracted significant interest due to their color-tunability for wide-gamut displays. Nevertheless, the width of the blue-emitting peak remains considerably broader than those of the green and red counterparts, resulting in degraded color purity, restricted gamut coverage, and diminished energy efficiency in blue-emitting devices. Here, we report spectroscopically pure blue QDs (λ = 465 nm) with an ultranarrow FWHM of 36 nm, achieving excellent color purity for blue-emitting I-III-VI QDs. Employing a two-step hot-injection method with precise thickness control, this approach enables epitaxial growth of an atomically thin 0.35 nm thick AgGaS 2 (AGS) shell on Ag-In-Zn-Ga-S cores. Using in situ HRTEM on systematically synthesized AIZGS@AGS architectures, we directly captured the controlled epitaxial growth of this shell, revealing a clean core–shell interface. The high-crystallinity AGS shell passivates surface defects, narrowing the PL spectrum from 103 to 36 nm. Moreover, systematic In:Zn ratio tuning further affords AIZGS@AGS QDs that exhibit narrow linewidths and continuous spectral coverage across the blue region (465–509 nm). Our study provides an effective approach for high-quality I-III-VI blue QDs, demonstrating significant potential for advanced display applications.
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高影响因子
Micro and Nanostructures
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2026
·
IF 3.1
Yuan Yuan,Min Zang,Fanxia Kong,Sen Yang,Xiaoyan Yang,Limei Li
PS@Ag@ZIF-8 sensor is constructed via room-temperature in-situ growth on monolayer colloidal crystals. • Introduced Ag nanoparticles greatly improve the sensor's optical features and structural color saturation. • The sensor selectively detects acetonitrile and alcohols by visible color change and reflection peak shift. • Fast response (<3 s), good recyclability for acetonitrile and high stability are achieved. • The design inspires low-cost portable gas sensors for environmental monitoring. In this work, we fabricated a high-performance optical sensor PS@Ag@ZIF-8 by sequentially depositing silver nanoparticles (NPs) and MOF thin films on the monolayer colloidal crystals surface via an in-situ growth method at room temperature. The rational introduction of silver NPs into the sensor structure remarkably improves its optical properties and structural color saturation. This sensor possesses excellent selective detection capability toward acetonitrile and alcohols. Moreover, the type and concentration of volatile organic pollutants (VOCs) vapors can be visually analyzed according to the shift of reflection peaks and distinct color differences in optical images. Meanwhile, it delivers an ultrafast response (<3 s) along with outstanding repeatability and recyclability. More importantly, it possesses a wide dynamic detection range, great linearity and exhibits excellent stability during operation. It is anticipated that this sensor provides a valuable reference for the development of low-cost, real-time and portable gas sensors for environmental monitoring. Download: Download high-res image (314KB) Download: Download full-size image
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高影响因子
CHINESE JOURNAL OF CHEMICAL ENGINEERING
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2026
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IF 3.5
Jiqiu Zhang,Wei Liu,Wenkai Teng,He Li,Honghui Ou,Guidong Yang
A high-aspect-ratio Ag/Co 3 O 4 nanowire array catalyst is fabricated via in-situ growth and interfacial engineering, forming a tandem catalytic system with synergistic Ag and Co active sites. • Ag loading promotes interface electron transfer and increases the proportion of Co 3+ to optimize the reaction pathway and suppress hydrogen evolution reaction. • The tailored interface provides abundant active sites and fast kinetics, leading to a record 94.2% FE at 800 mA·cm -2 . • Maintains >90% FE at 1 A·cm -2 , showcasing unmatched stability for scalable application. Electrocatalytic conversion of nitrate (NO 3 - ) to ammonia (NH 3 ) offers an beneficial route for green NH 3 synthesis, yet challenges such as complex reaction pathways and uncoordinated adsorption and conversion of reactive species hinder the enhancement of reaction kinetics. In this study, a high-aspect-ratio Ag/Co 3 O 4 nanowire array catalyst was successfully fabricated on cobalt foam via an in-situ growth combined with an interfacial engineering strategy, constructing a tandem catalytic system with synergistic Ag and Co active sites. The results demonstrate that Ag loading promotes interface electron transfer and increases proportion of Co 3+ , which can promote yield improvement. Electrochemical tests show that in an H-cell, Ag/Co 3 O 4 achieves a Faradaic efficiency (FE) of 91.4% and NH 3 rate of 70.2 mg·h -1 ·cm -2 at −0.4 V vs . RHE. In a membrane electrode assembly (MEA) system, Ag/Co 3 O 4 exhibits a high FE of 94.2% at large-scale applicable current density of 800 mA·cm -2 and maintains over 90% FE even at 1000 mA·cm -2 , along with excellent stability. This work elucidates the core mechanism involving tandem catalysis and the synergistic enhancement via interfacial electron transfer regulating Co 3+ active center, providing a novel strategy for designing high-performance and robust catalysts for the electrochemical nitrate reduction reaction (NO 3 RR) and advancing this technology toward industrial application. Download: Download high-res image (518KB) Download: Download full-size image
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Reaction Chemistry & Engineering
·
2026
·
IF 2.9
Yuxia Li,Tingting Ge,Zehao Jing,Yanxia Zheng,Yuchao Li,Ming Wang,Haofei Huang,Cuncun Zuo
Tricyclodecanemonoaldehyde (TCDMA) and tricyclodecanedialdehyde (TCDDA) are key intermediates in fine chemicals and are typically synthesized via hydroformylation of dicyclopentadiene (DCPD). However, developing cost-effective and highly active catalysts with high selectivity remains a significant challenge. A series of M-doped CoO catalysts (M = Ag, Cu, Fe, Ni) are synthesized via a co-precipitation method for DCPD hydroformylation, and Ag is identified as the optimal dopant for synergistic regulation of CoO catalytic performance. The structure–activity relationships of the catalysts are systematically elucidated using a combination of characterization techniques, including XRD, SEM/TEM, in situ FTIR, H2-TPD, H2-TPR, and CO-TPR, and the reaction conditions (temperature, catalyst dosage, pressure, and time) are systematically optimized. Under the optimal reaction conditions (150 °C, 7 MPa, 24 h), the 10% Ag/CoO catalyst achieves a DCPD conversion of 72%, a total aldehyde selectivity of 90%, and a combined yield of TCDMA + TCDDA of over 65%. The introduction of Ag nanoparticles not only modulates the surface electronic structure of CoO to promote H2 adsorption and activation but also suppresses the excessive reduction and aggregation of cobalt active species during the reaction, thereby enhancing both catalytic activity and structural stability. Based on experimental characterization and performance evaluation, a dynamic catalytic cycle mechanism for DCPD hydroformylation on the Ag/CoO surface is proposed, clarifying the synergistic catalytic effects of Ag and CoO active sites. Compared with traditional precious metal catalysts, the Ag/CoO bimetallic catalyst features low cost, simple preparation, and excellent catalytic performance and exhibits significant potential for industrial application in the green synthesis of TCDMA and TCDDA.
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高影响因子
ANALYTICAL CHEMISTRY
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2026
·
IF 7.3
Yunhang Liu,Hao Yi,Huajun Cao,Jun Luo
In this study, an aerosol-jet-printed silver micropillar array was introduced onto the surface of a screen-printed carbon electrode (SPCE) and further coated with a poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) functional film, yielding a three-dimensional hierarchical electrode for high-performance electrochemical detection of niclosamide (NA). The silver micropillar arrays form a three-dimensional microelectrode network on the working electrode surface, where the pillar tops and sidewalls markedly increase the electrochemically active area and facilitate mass transport toward the electrode interface, thereby enhancing analyte flux and amplifying the Faradaic response. In addition, PEDOT:PSS as a mixed ionic-electronic conductor, establishes a continuous and stable reaction interface on the silver-pillar scaffold, which not only improves interfacial wettability and charge/ion transport but also promotes interfacial enrichment of NA via its functionalized polymer network. Benefiting from the synergistic effects of three-dimensional structural amplification and conductive-polymer-mediated interfacial regulation, the fabricated Ag@PEDOT:PSS/SPCE sensor exhibits a good linear response over 0.01–15 μM with a limit of detection as low as 1.73 nM. Meanwhile, the sensor demonstrates excellent repeatability, reproducibility, and anti-interference performance, and it was successfully applied to the quantitative determination of NA in tap water and oolong tea samples with satisfactory recoveries and accuracy, indicating strong potential for practical applications.
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PubMed
高影响因子
Materials Today Chemistry
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2026
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IF 7.4
Qiujun Hu,Xiaowei Liang,Xiaomiao Zhao,Panjun Wang,Chunlong Guan,Shun Wang,Zhiwei Zhao
Thermal-driven Ag intercalation enables vdW-gaps doping in 3D-printed n-type Bi 2 Te 2.7 Se 0.3 . • vdW-gaps Ag enhances electrical transport and lowers lattice thermal conductivity. • Peak ZT of 1.26 and module efficiency of 6.0% are achieved. Bi 2 Te 3 -based materials are recognized as the benchmark thermoelectrics for near-room-temperature applications. However, substantially inferior thermoelectric performance in n-type Bi 2 Te 3 compared to highly performance p-type variants creates a critical performance asymmetry, restricting energy conversion efficiency. Herein, we develop thermal-driven Ag intercalation into van der Waals (vdW) gaps of 3D-printed n-type Bi 2 Te 2.7 Se 0.3 (BTS), achieving vdW-gaps doping. The first-principles calculations demonstrate that interstitial Ag atoms are mainly located at the vdW gaps, which reduces their direct perturbation to the conductive layers. As a result, they provide spatially separated conduction electrons, increasing carrier concentration while sustaining high carrier mobility. Furthermore, the Ag-intercalation-induced superlattice structures efficiently scatter mid-to-long wavelength phonons, thereby effectively suppressing lattice thermal conductivity. Ultimately, the BTS + 0.2% Ag intercalated sample achieves a peak ZT of 1.26 at 375 K, with an average ZT ∼1.12 maintained across the operational temperature range of 300-500 K. Leveraging such exceptional thermoelectric performance, a thermoelectric module assembled with 127 pairs legs delivers a conversion efficiency of 6.0% under ΔT = 180 K. This work provides a facile thermal-driven Ag intercalation strategy for vdW-gaps doping of n-type Bi 2 Te 3 -based thermoelectrics, breaking the performance asymmetry bottleneck and enabling high-efficiency near-room-temperature thermoelectric modules.
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高影响因子
Progress in Natural Science-Materials International
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2026
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IF 7.4
Somavia Ameen,Amna Abrar,Siyang Wang,Qianqian Ren,Xintong Yan,Attiqa Parveen,Shi Hu
Transitioning to a net-zero society requires efficient electrochemical technologies for converting carbon dioxide (CO 2 ) into valuable products powered by renewable energy. The commercial deployment of CO 2 electrolyzers requires catalysts that combine high activity, selectivity, and scalability. This study reports a novel and facile synthesis strategy for highly loaded, uniformly dispersed silver nanoparticles (AgNPs) on conductive carbon substrates using 1-dodecanethiol as a stabilizing ligand. This approach enables simultaneous control over particle size (<7 nm) and metal loading (up to 60 wt %) on Vulcan XC (low surface area) and Ketjen Black (high surface area). Using 1-dodecanethiol effectively prevents agglomeration, yielding highly dispersed AgNPs even at ultrahigh loading. We present a systematic investigation into the influence of carbon support surface area on Ag dispersion, loading efficiency, and electrocatalytic performance. Notably, Ag/KB-60 exhibits a faradaic efficiency of 90 % for CO at −0.81 V vs. RHE and remarkable operational stability over 24 h. This work presents a low-cost, thiol-based synthesis strategy that is readily scalable for industrial manufacturing of CO 2 electrolyzers, enabling the production of high-performance Ag/C catalysts with commercial relevance.
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高影响因子
Functional Materials Letters
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2026
·
IF 1
Yang Sheng,Xinyu Zhu,Xingyu Liu,Peng Zhang,Yixin Sun,Rong Zhang
Developing novel materials to improve the global food supply is vital to combat hunger, achieve food security and promote sustainable agriculture. To address this issue, we employed red-emitting Ag-In-S-Zn (AISZ) quaternary quantum dots (QDs) as light converters to fabricate AISZ QDs-loaded ethylene vinyl acetate (EVA) copolymers (AISZ/EVA) films to improve the light conditions for crop growth. The synthesis of AISZ QDs was optimized to achieve a high quantum yield (73%) and an emission band matching the absorption window of chlorophyll a and b. Using EVA resin as the matrix, efficient ultraviolet-to-red light-converting AISZ/EVA films with varying AISZ content were prepared by the solvent evaporation method. The fluorescence and transmittance of these light-conversion films along with a blank EVA control, were characterized. Subsequent 28-day lettuce cultivation under controlled light illumination revealed that the 1.0 wt.% AISZ/EVA film induced maximal growth enhancement. The fresh weight and dry weight were increased by 28.2% and 34.4%, respectively, while the contents of total chlorophyll, chlorophyll a, chlorophyll b, carotenoid, soluble sugars and proteins were increased by 48.8%, 51.3%, 43.8%, 40.8%, 33.6% and 37.2%, respectively. The results demonstrate that broad-emitting AISZ QDs served as efficient light converters to fabricate agricultural light-conversion films, highlighting their broad application prospects and promising commercial potential in controlled environment agriculture.
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