Advanced Energy Materials
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2026
·
IF 25.5
Li Gao,Xing Cheng,Haikui Yong,Yutong Zhang,Jindian Yu,Yueshuai Wang,Tianjiao Lou,Jinxu Song,Lirong Zheng,Hongyi Li
RuO 2 is a promising anode catalyst for PEMWE but suffers rapid degradation at ampere-level current densities. Previous studies have linked the instability of ruthenium-based catalysts to excessive Ru─O covalency, yet the mechanism governing this covalency remains unclear. Here, we introduce isovalent metals (M: Ti 4+ /Hf 4+ ) to modulate the Ru─O bond strength. Density functional theory calculations show that the strong inductive effect of Hf─O enables Hf 4+ to optimize the Ru(4d)–O(2p) orbital overlap, which in turn weakens the Ru─O covalency, thereby suppressing lattice oxygen activity. Experimental results demonstrate that Hf 4+ , which possesses stronger oxophilicity, exhibits superior performance in enhancing both the catalytic activity and durability of Ru 0.7 M 0.3 O 2 (M = Ti or Hf) for the acidic oxygen evolution reaction. In a practical PEMWE device, Ru 0.7 Hf 0.3 O 2 achieves 3 A cm −2 at 1.71 V, corresponding to a specific energy consumption of 44.58 kWh kg −1 H 2 , meeting the U.S. DOE 2026 target (specific energy consumption of 48 kWh kg −1 H 2 ). Moreover, the catalyst operates stably for over 250 h at 1 A cm −2 with a degradation rate more than 48 times lower than that of commercial RuO 2 . This work provides a new strategy for designing high-performance catalysts through the inductive effect.
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高影响因子
Insect Science
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2026
·
IF 3.7
Honglei He,Feng Lan,Bei Zhang,Tianzi Gu,Jianyang Bai,Qing-He Zhang,Jacob D. Wickham,Longwa Zhang
The olfactory system is pivotal for insects to detect external chemical signals and regulate essential life processes. Dendroctonus valens , an invasive forest pest, displays strong chemotaxis toward the plant kairomone (+)-3-carene. To unravel the molecular mechanism underlying olfactory recognition, we identified 28 odorant-binding proteins (OBPs) from D. valens via transcriptome sequencing and identified DvalOBP6 and DvalOBP18 as potential key candidates for this host kairomone component using qRT-PCR. Tissue expression analysis revealed that these two Minus-C OBPs are predominantly expressed in olfactory-related tissues (antennae, legs, and wings) with distinct sexual dimorphism. Homology modeling and molecular docking showed that both proteins adopt a typical six- α -helix fold, and bind (+)-3-carene primarily via hydrophobic interactions with binding energies of −5.53 kcal/mol and −4.96 kcal/mol, respectively. RNA interference of DvalOBP6 or DvalOBP18 significantly abolished the olfactory preference of D. valens adults for (+)-3-carene. Collectively, our findings demonstrate that DvalOBP6 and DvalOBP18 play critical roles in (+)-3-carene perception, providing a theoretical basis for the development of green pest control technologies targeting insect olfactory communication.
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PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Yongjing Guo,Hangshuo Feng,Qiuni Zhao,Shenghui Guo,Renminxi Ou,Shunping Zhang,Zaihua Duan,Yi Xia,Zhen Yuan,Ming Hou,Li Yang,Huiling Tai
A sulfur vacancy-rich PdS/MoS 2 hierarchical heterostructures were synthesized via in-situ microwave-assisted method. • A dual-sensitization mechanism of synergistic enhancement of sulfur vacancy and heterojunction was proposed. • A mobile monitoring system is developed for on-site NO 2 tracking, enabling excessive NO 2 concentration warning. Developing high-selectivity and high-sensitivity nitrogen dioxide (NO 2 ) gas sensors, and explaining the complex underlying sensitization mechanisms remain critical challenges. Herein, we propose a dual-sensitization mechanism of synergistic enhancement of sulfur vacancy and heterojunction at composite interface to develop a high-performance NO 2 gas sensor at room temperature. A novel sulfur vacancy-rich palladium sulfide (PdS) nanocluster is synthesized via a microwave-assisted method, and it is further in situ decorated on molybdenum disulfide (MoS 2 ) nanoflowers to construct hierarchical heterostructure. The high selectivity of PdS/MoS 2 gas sensor is verified via experiment and density functional theory calculation. The PdS/MoS 2 composite system shows the highest adsorption energy (−1.89 eV) to NO 2 among various interfering gases, which further decreases to −2.11 eV after introducing sulfur vacancies. Meanwhile, the proposed dual-sensitization mechanism is based on “targeted electron-reflux” effect resulting from the synergistic action of sulfur vacancies and the p-p heterojunction, which modulates the interfacial carrier migration behaviors. Furthermore, a mobile NO 2 monitoring system is developed for on-site NO 2 tracking, which is equipped with the PdS/MoS 2 gas sensor, universal serial bus module, and smart phone, enabling real-time monitoring and excessive NO 2 concentration warning. This work proposes a research approach for complicated gas sensing mechanism, and provides an avenue for portable and intelligent gas detection. Download: Download high-res image (162KB) Download: Download full-size image
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高影响因子
Coatings
·
2026
·Vol. 16
·期 8
·890
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IF 3.4
Keyan Sheng,Haozhe Li,Ning Liu,Jianxiong Guo,Kanglin Dai,Chongyang Feng,Gaotai Lv,Zhijun Li,Huaixiang Wang,Huijuan Liu,Zijian Zhou,Dangguo Ma,Jiang Huang
Rosin- and castor-oil-derived resins provide a renewable platform for rapidly curable protective coatings, but the effects of formulation and curing route remain insufficiently resolved. Four composite formulations containing modified rosin glycerol ester (MRGE) and modified castor oil anhydride (MCOA) were cured thermally using ultraviolet irradiation or electron beam (EB) irradiation. Surface C=C conversion, thermal behavior, morphology, mechanical properties, neutral salt spray resistance, electrochemical barrier performance, and AC dielectric breakdown strength were evaluated. Among the formulations tested, F2 (MRGE/MCOA = 3:1) showed the best overall property balance under each curing route. For F2, EB curing produced a surface C=C conversion of 92 ± 2%, a glass transition temperature of 88 ± 1 °C, an 800 °C residue of 12.5 ± 0.3%, and an atomic force microscope (AFM) roughness Ra of 5.8 ± 0.5 nm. F2-EB exhibited 9H pencil hardness, 5B adhesion, an impact resistance of 55 ± 2 cm·kg, and a flexibility value of 1.0 ± 0.1 mm. After 500 h of neutral salt spray, both F2-EB and F2-UV achieved a protection rating of 10 with no measurable corrosion creep at the scribe; time-resolved photographs at 100, 300, and 500 h confirmed that F2-EB showed the least visible damage evolution among the three curing routes. After 1 day of immersion in 3.5 wt% NaCl, F2-EB exhibited the largest low-frequency impedance and the lowest fitted corrosion current density among the EB-cured formulations, indicating the strongest short-term electrolyte barrier behavior. The AC dielectric breakdown strength of F2-EB reached 21.5 ± 0.3 kV mm−1. The combined results are consistent with more extensive EB-induced network formation, although direct measurements of through-thickness conversion and crosslink density are still required. These findings demonstrate the potential of EB curing for rapidly preparing rosin/castor-oil-derived protective coatings for electrical insulation applications.
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高影响因子
Horticulturae
·
2026
·Vol. 12
·期 7
·866
·
IF 3.4
Yanru Yu,Xuena Yu,Hongyu Chen,Zhongrong Guan,Wenping Li,Pingping Shi,Huanhuan Huang,Bo Sun,Zhi Huang
HighlightsWhat are the main findings?Red, white, and blue light differentially regulated growth, pigments accumulation, and antioxidant compounds and glucosinolates in mustard sprouts, respectively.Combined with sodium selenite, SeR showed the greatest gains in growth, SeW attained the highest total glucosinolates content, and SeB the highest antioxidant capacity.What are the implications of the main findings?Targeted combinations of light quality and exogenous selenium can selectively enhance the yield or nutritional quality of mustard sprouts in controlled-environment production.Phenylpropanoid biosynthesis and linoleic acid metabolism are key pathways underlying the combined effects of light and selenium on health-promoting compounds.Mustard (Brassica juncea) sprouts are appreciated for their high levels of bioactive constituents, but how light quality and exogenous selenium interactively regulate their growth and nutritional properties is still poorly understood. In this study, we evaluated the individual and combined effects of red (R), white (W) and blue (B) light together with 100 μmol·L−1selenium solution (SeR, SeW, SeB) on sprouts growth, health-promoting compounds, and metabolic profiles. Under single light quality treatments, red light favored growth, white light promoted photosynthetic pigment accumulation, and blue light most effectively enhanced antioxidant compounds and glucosinolates. Combined treatments further improved both yield and quality. SeR showed the greatest gains in growth indices; SeW achieved the highest total chlorophyll, total carotenoids, and total glucosinolates (the latter reaching 108.18 μmol g−1DW), and SeB attained the highest total selenium, soluble sugar, soluble protein, anthocyanins, ascorbic acid, flavonoids, total phenolics, and antioxidant capacity. Non-targeted metabolomics identified 1208 differential metabolites, with KEGG enrichment revealing that the phenylpropanoid biosynthesis pathway was significantly enriched across all selenium-treated groups. These findings demonstrate that targeted combinations of light quality and exogenous selenium can selectively enhance the growth or nutritional quality of mustard sprouts, offering practical guidance for their controlled-environment production.
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高影响因子
OPTICS AND LASER TECHNOLOGY
·
2026
·
IF 5.2
Like Li,Shunye Huang,Yi Li,Xiaoman Chen,Qiwei Li,Hui Tang,Xuqiang Wu,Yong Zhao
Due to its narrow treatment window, the vancomycin concentration in the patient’s body needs to be monitored regularly to guide dose optimization and ensure safety and efficacy. Here, we developed a fiber-optic surface plasmon resonance (SPR) vancomycin sensor based on gold nanoparticles (AuNPs)/multiwalled carbon nanotubes (MWCNTs)/DNA aptamer synergistic modification. AuNPs can effectively enhance the local electromagnetic field and plasmon resonance effects, while MWCNTs have a strong electronic conductivity and a high specific surface area. The synergistic effect of the two can achieve dual amplification of the SPR signal, thereby improving the sensitivity. Vancomycin aptamer can specifically capture vancomycin molecules and induce spatial conformational changes, thereby increasing the effective refractive index. Experimental results confirmed that within 30 μM–400 μM, the sensitivity of vancomycin detection is as high as 0.0527 nm/μM, and the detection limit is 18.11 μM. Moreover, the vancomycin sensor exhibits excellent stability and specificity. The vancomycin sensor is low-cost, easy to use, and has the potential to be applied for rapid and accurate determination of vancomycin in clinical settings.
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高影响因子
MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Fang Yang,Tingting Gong,Xia Li,Bingying Jiang,Ruo Yuan,Yun Xiang
A highly sensitive fluorescent biosensor for P-tau231 detection is developed. • Aptamer-gated self-feedback CHA/DNAzyme circuit enables drastic amplification. • 0.45 pg mL −1 detection limit with high specificity against interferents is achieved. • The detection of trace P-tau231in diluted human serums is validated. Phosphorylated tau at threonine 231 (P-tau231) is a clinically informative blood-based biomarker for early Alzheimer's disease (AD), yet its extremely low abundance demands robust signal amplification for sensitive detection of P-tau231. Here, we develop an enzyme-free, target-activated fluorescence assay based on a continuous self-feedback DNA molecular circuit that integrates aptamer recognition, catalytic hairpin assembly, and a Mg 2+ -assisted DNAzyme. P-tau231 binding to an aptamer/ssDNA duplex releases a trigger strand that unlocks a DNAzyme-containing hairpin, initiating an autocatalytic amplification cascade. The activated DNAzyme repeatedly cleaves a fluorophore/quencher-labeled substrate hairpin, converting molecular recognition into a turn-on fluorescence output with substantial signal gain. Under optimized conditions, the proposed strategy enables highly sensitive P-tau231 assay (0.45 pg mL −1 detection limit), while maintaining high specificity against potential interferents. Feasibility in complex matrices is further supported by analysis in diluted human serum. This self-feedback CHA-DNAzyme circuit provides a modular framework for ultrasensitive fluorescence biosensing of low-abundance protein biomarkers relevant to early AD screening. Download: Download high-res image (73KB) Download: Download full-size image
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Yongbo Yu,Qian Fei,Kailing Zhou,Jingbing Liu,Ziwei Ma,Hao Wang,Hui Yan
A dual-ion (H + /Cl − ) electrochemical polarization strategy dynamically tunes EMW shielding in flexible CNTs@PANI composites. • Dual-ion intercalation restructures PANI to optimize its band gap, sheet resistance, and reflective EMW shielding. • Uneven ion accumulation enlarges dipole moment and dielectric constant, significantly boosting EMW absorption shielding efficiency. • Synergistic reflection-absorption modulation achieves an ultrahigh specific shielding effectiveness variation of 289.44 dB·mm −1 . • A flexible sandwich device offers tunable X-band EMW shielding (26.29–42.06 dB) and robust bending/cycling stability. Dynamic manipulation of electromagnetic waves (EMWs) represents an indispensable cornerstone for next-generation intelligent stealth and adaptive communication systems. Nevertheless, the practical implementation of state-of-the-art electromagnetic materials remains severely constrained by insufficient modulation capabilities arising from single regulatory mechanisms, along with compromised operational flexibility and reliability. Herein, we report a dual-ion-mediated electrochemical polarization strategy in a flexible carbon nanotube@polyaniline (CNTs@PANI)-based device, which enables precise dynamic regulation of EMWs via the synergistic modulation of electromagnetic reflection and absorption. In-situ structural characterizations coupled with theoretical simulations demonstrate that electric-field-triggered H + /Cl − dual-ion intercalation drives the structural rearrangement of PANI from a non-polarized quinoid state to a polarized benzenoid structure. This transformation increases the content of protonated imine groups from 33.01% to 60.97%, narrows the band gap from 2.62 eV to 0.99 eV, and lowers the sheet resistance by 82.4% (from 47.99 to 8.43 Ω·sq. −1 ), thereby tailoring the EMW reflection shielding effectiveness (SE R ) from 4.71 dB to 8.84 dB. Furthermore, the asymmetric electrostatic potential distribution induced by H + /Cl − dual-ion intercalation and accumulation in PANI backbone amplifies the dipole moment by 118% (from 4.02 to 8.77 Debye), generating a pronounced dielectric polarization effect accompanied by maximum enhancement ratios of 172% and 6300% for the real (ε’) and imaginary (ε”) parts of the permittivity, respectively, which boosts the absorption shielding effectiveness (SE A ) from 11.12 to 17.75 dB. Consequently, the synergistic modulation of reflection and absorption contributes to thickness-normalized specific shielding effectiveness variation amplitude (ΔSSE) of 289.44 dB·mm −1 for the CNTs@PANI within the X-band (8.2–12.4 GHz), surpassing previously reported systems. This work establishes a novel paradigm for designing high-performance adaptive EMW protection systems through dual-ion electrochemical engineering.
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高影响因子
Biosensors-Basel
·
2026
·Vol. 16
·期 8
·403
·
IF 6.2
Hongzhou Chen,Mengyu Li,Weichao Wu,Yang Liu,Chuanfu Lu,Qi Li,Yuwei Ren,Yingwang Ye,Baocai Xu,Kezhou Cai
Staphylococcus aureus(S. aureus) is a significant pathogen that causes foodborne diseases. Meat, with its abundant nutrients and high water activity, constitutes an ideal niche forS. aureuscolonization. Numerous studies have shown that human digestive tract diseases caused by consuming meat products contaminated withS. aureusoccur frequently. It is of great significance to strictly monitorS. aureusin meat matrices. A novel biosensor employing dual-signal output was developed through the combination of efficient magnetic separation and dual-modal precise detection. Designed for the rapid enrichment ofS. aureus, it significantly boosts detection sensitivity and accuracy, thereby enabling the earlier identification of potential contamination sources. This method uses vancomycin-modified magnetic beads as the capture element, and aptamer-modified nanozymes as the signal element. After magnetic separation, the 3,3′,5,5′-tetramethylbenzidine color reaction can be used to quickly and sensitively detectS. aureus. It achieved a detection limit as low as 10 cfu/mL. Moreover, this dual-signal sensor based on efficient magnetic separation can sensitively detectS. aureusin meat products, thus showing good application prospects in food matrices and further improving the reliability and specificity of detection.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Xinru Liu,Yu Wang,Jiaxin Tong,Qingshang Peng,Zhuoyou Gao,Jiali Zhang,Mingtao Run,Hongzan Song
Stretchable photoluminescent multi-responsive dual cross-linked ionogel has been fabricated. • The ionogels show special thermochromic and multiple photoluminescent properties for information encryption transmission. • The ionogels exhibit high stretchability, elasticity, thermomechanical stability, and self- adhesive ability. • The visual wearable sensors excellent strain/temperature sensitivity, fast response, and stable signals output. Flexible ionogels with optical functions have recently emerged as promising applications in visual wearable sensors and information encryption transmission. Nevertheless, it still remains a great challenge to realize multiple functions within a single system. Herein, a stretchable photoluminescent multi-responsive chemical-physical dual cross-linked ionogel with microphase separated structures has been fabricated via a two-step method: initially through copolymerization, followed by an amine-epoxy ring-opening reaction. The chemical-physical dual cross-linked networks, more polar groups, and strong interactions can endow the as-prepared ionogels with high stretchability, good elasticity, excellent ionic conductivity, extraordinary thermomechanical stability, and adhesion to various substrate surfaces. Furthermore, the ionogels have unique thermo-responsive properties and special multiple photoluminescent performances, which can be used for information encryption transmission. Importantly, the ionogel-based visual thermal/mechanical-responsive wearable sensors display excellent strain/temperature sensitivity, fast response, stable and reproducible electrical signals output, which can sensitively detect various human motions as well as for human-machine interaction. This work provides an effective design strategy for preparing multifunctional flexible ionogel sensors. Download: Download high-res image (169KB) Download: Download full-size image
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高影响因子
ChemistrySelect
·
2026
·Vol. 11
·期 28
·e73876
·
IF 2.3
Tao Liu,Huichao Zhang,Bo Huang,Shitong Li,Bin Liu
Mn 2+ -doped perovskite nanocrystals (NCs) have attracted extensive research interest and have been synthesized with sizes in the strong confinement regime. Nevertheless, the size of the doped NCs is still not as small as that of undoped perovskite NCs. To address this, we develop a ligand-assisted reprecipitation method incorporating ultrasonication to synthesize Mn 2+ -doped CsPb(Cl/Br) 3 NCs. The obtained spherical NCs have an average size of 3.1 nm and exhibit orange photoluminescence originating from the 4 T 1 to 6 A 1 transition of Mn 2+ . The luminescent properties correlate with the volume ratio of MnCl 2 to PbBr 2 precursors. Increasing the ratio enhances the Mn 2+ -related emission, while excessive doping leads to photoluminescence quenching. When the precursor ratio is reduced to 1:1, the NCs exhibit both intrinsic exciton and Mn 2+ -related emission, with some particles adopting cubic or rod-like morphologies. Prolonged ultrasonic treatment does not significantly shift the emission peak of the NCs, but promotes superlattice assembly in small-sized NCs, showing a center-to-center separation of 4.2 nm. Subsequently, altering the precursor addition sequence to introduce MnCl 2 last during ultrasonic preparation yields simultaneous formation of spherical and cubic NCs. Finally, post-synthesis doping of Mn 2+ is achieved. Formation of small spherical NCs confirms hypothesis that MnCl 2 induces morphological transformation of NCs. Graphical Ultrasonication-assisted ligand-assisted reprecipitation delivers 3.1 nm Mn 2+ -doped CsPb(Cl/Br) 3 nanocrystals with orange emission from the Mn 2+ 4 T 1 → 6 A 1 transition.
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高影响因子
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
·
2026
·
IF 1.7
Hui Tang,Qiao Jiang,Songlin Zhu,Qiang Yang,Hong Gu,Pei Liu,Tao Hong,Zehua Li,Yangchun Leng
210 Po is a natural radioactive nuclide, belonging to the uranium series decay product, with high toxicity alpha radiation characteristics, widely present in environmental media such as soil. It poses a potential internal radiation risk to human health, therefore accurate monitoring of 210 Po in soil is of great significance for public health and radiation environment regulation. At present, there is a lack of standardized analysis methods for 210 Po in soil media both domestically and internationally, resulting in inconsistent quality of monitoring data. Based on extensive literature research and multi institutional experimental verification, this study proposes a soil 210 Po analysis method that combines wet acid digestion and spontaneous deposition followed by alpha spectroscopy. The HNO 3 + HCl + HF (3:2:1) mixed acid system is used to optimize key parameters such as digestion temperature (160 °C), self deposition acidity (0.2–0.5 mol/L HCl), and ascorbic acid dosage (0.5 g). The method has been validated by 8 radiation monitoring institutions in China, showing a method detection limit (MDL) of 1.0 × 10 −3 Bq/g and a limit of quantification (LOQ) of 4.0 × 10 −3 Bq/g, a precision (RSD) of 2.5–14% and a spike recovery rate of 107–108% for method accuracy evaluation. It has good accuracy, repeatability, and universality, and is suitable for daily environmental monitoring needs.
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高影响因子
危险品化学品经营许可证（带存储）