ADVANCED FUNCTIONAL MATERIALS
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2026
·
IF 19.9
Huan Yang,Wenzhu Wang,Guo Wang,Xiaofan Xu,Jiayao Wulan,Guohua Li,Ting Li,Ting Xia,Lixi Zhao,Fang Zhang,Yirui Li,Kai Li,Yan Yu,Yuqing Lin
Conventional antioxidants and nanozymes often suffer from short half-lives and irreversible deactivation during biodegradation, severely limiting their efficacy in prolonged oxidative stress conditions like traumatic brain injury (TBI). Herein, we report a degradation-activatable nanozyme, C─Cu SA/MXene, via rational metal-peptide co-design that uniquely decouples catalytic longevity from structural persistence. By anchoring Cu single atoms onto biodegradable Mo 2 C MXene and functionalizing it with cysteine-rich CAQK peptide, we engineer a system where scaffold degradation enables in situ chelation of released Cu 2+ via Cu-S coordination, forming a stable CAQK-Cu complex retaining >80% of its original superoxide dismutase (SOD)-like activity (29 904.3 U/mg), which compares favorably to the referenced standard activity of natural SOD. This system also exhibits catalase-like activity for dual ROS scavenging. Spectroscopic and DFT analyses confirm Cu-S bonding narrows the HOMO-LUMO gap (0.05 eV) and preserves the redox-active electronic structure. In a murine TBI model, C─Cu SA/MXene-derived elements exhibit enhanced retention and preferential accumulation at injury sites, engaging the injured microenvironment, reduce lesion area 62%, increase hippocampal neuronal survival 1.7-fold, restore spatial memory, and activate PI3K/AKT pro-survival pathway. Critically, the material is metabolically cleared within 7 days without systemic toxicity, demonstrating a new degradation-resilient nanozyme platform for sustained ROS scavenging and TBI neuroprotection.
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FOOD RESEARCH INTERNATIONAL
·
2026
·
IF 8.8
Fazhu Li,Tingting Yang,Guanghua Xia,Zhongyuan Liu,Dawei Yu,Zhidong Liu,Liming Zhang,Jiamei Wang
ACP treatment enhanced encapsulation and controlled release of curcumin / resveratrol. • ACP promoted hydrogen bonding and electrostatic interactions in nanoemulsions • ZCR/SA-NE-3 min showed excellent emulsifying and antioxidant activity. • Nanoemulsions prepared with ACP-pretreated ZCR/SA nanoparticles effectively reduced TVC and MDA levels in refrigerated tilapia • Nanoemulsions prepared with ACP-pretreated ZCR/SA nanoparticles extended the shelf life of refrigerated tilapia from 4 to 8 days. Oxidative degradation and microbial contamination cause quality deterioration of aquatic products under refrigeration, posing a major challenge to their preservation. In this study, zein-curcumin-resveratrol‐sodium alginate nanoparticles (ZCR/SA NPs) were pretreated with atmospheric cold plasma (ACP) for 1–4 min. The ACP-modified NPs were further fabricated into antioxidant nanoemulsions (NEs), and the influences of ACP pretreatment on the physicochemical properties, encapsulation efficiency, and sustained-release performance of the resultant NEs were systematically explored. The ACP treatment significantly improved the loading efficiency and controlled release of curcumin and resveratrol ( P < 0.05). FT-IR and XRD analyses indicated the formation of stronger hydrogen bonding and electrostatic interactions within the NEs system, which improved structural stability. Among all samples, ZCR/SA-NEs-3 min exhibited the best emulsifying properties (ESI = 358.57 ± 14.60 min, EAI = 30.51 ± 1.52 m 2 /g) and strong antioxidant activity (DPPH: 74.7 ± 1.67%, ABTS: 76.4 ± 2.17%). Importantly, ZCR/SA-NEs-3 min could significantly delay the spoilage process of tilapia fillets during 8 days of storage. Compared with the control group, the total viable count decreased from 8.07 ± 0.04 to 5.20 ± 0.04 lg₁₀ CFU/g, the malondialdehyde content dropped from 1.57 ± 0.03 to 0.49 ± 0.01 mg MDA/kg, and the shelf life was extended from 4 days to 8 days. This study not only revealed the mechanism underlying property improvement of NEs by ACP-modified NPs, but also provided an eco-friendly and innovative strategy for efficient preservation of aquatic products. Download: Download high-res image (265KB) Download: Download full-size image
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JOURNAL OF LUMINESCENCE
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2026
·
IF 3.8
Xiao Cheng,Hao Zhang,Zixu Chen,Haozhuo Dong,Ting Yu,Ruifang Guan
Room-temperature phosphorescent carbon dots (RTP-CDs) exhibit exceptional biocompatibility and tunable luminescence but are limited by short lifetimes and exciton quenching. Herein, we develop a one-step pyrolysis strategy using m-phenylenediamine and boric acid to fabricate boron-doped RTP-CDs (M-CDs) with ultralong green afterglow (16 s) and extended lifetime (37.03 ms). The rigid polycrystalline boron oxide matrix effectively confines molecular motion, isolates quenchers, and stabilizes triplet excitons, while boron doping reduces the singlet-triplet energy gap (ΔE ST = 0.206 eV) to promote intersystem crossing (ISC). Further heavy-atom doping (Cl/Br) enhances spin-orbit coupling, boosting afterglow to 18 s and lifetime to 41.16 ms, whereas iodine disrupts the matrix. Leveraging tunable afterglow dynamics, we demonstrate dynamic information encryption with visible/UV-switchable patterns. This work provides a cost-effective route to high-performance RTP-CDs and clarifies synergistic regulation mechanisms for advanced optoelectronic applications.
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CERAMICS INTERNATIONAL
·
2026
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IF 6
Yiyan Wang,Yanjie Zhang,Yunan Lin,Zheng Wei,Haohao Cao,Jingjie Yu,Zhiguo Xiao
Red-Green-Blue (RGB) phosphors are promising for optical information encoding and full-spectrum white light-emitting diodes (WLEDs). Herein, KCsPbBr 3 perovskite quantum dots (PQDs, ∼5.0 nm) were successfully formed on Sr 2 MgSi 2 O 7 : Eu 2+ phosphors via a facile deposition–precipitation method, yielding blue-green emitting composites. The KCsPbBr 3 -Sr 2 MgSi 2 O 7 : Eu 2+ composites exhibit tunable emissions at 463 nm and 519 nm under 365 nm excitation. Specifically, the blue emission at 463 nm is attributed to the 4f 6 5 d 1 → 4f 7 transition of Eu 2+ ions in the Sr 2 MgSi 2 O 7 host, while the green emission at 519 nm originates from the emission of KCsPbBr 3 perovskite quantum dots. Notably, the emission intensity at 75 wt% KCsPbBr 3 is ∼240 times higher than that at 9 wt% and a blue afterglow persists after removing UV excitation. Under external stimulation, the composites display color-variable patterns with fluorescence mode conversion, enabling multi-dimensional anti-counterfeiting. For instance, an RGB pattern appears white under natural light but transforms into a red-green pattern under UV and afterglow modes. Furthermore, full-spectrum WLEDs with high color rendering (Ra = 90, Rf = 83, Rg = 91), comparable to sunlight, are achieved by combining the composites with CaAlSiN 3 : Eu 2+ . These results indicate that KCsPbBr 3 -Sr 2 MgSi 2 O 7 : Eu 2+ PQD phosphors have strong potential in advanced anti-counterfeiting and full-spectrum WLED applications.
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eFood
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2026
·Vol. 7
·期 4
·e70178
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IF 5.7
Weirui Fang,Xiaoyi Zhu,Xingyu Rong,Zhen Wang,Manjun Du,Shiyu Liu,KangJu Lee,Yaowen Liu
A portable and intelligent sensing platform was developed for the rapid detection of chlorpyrifos (CPS). A ratiometric fluorescent nanosensor, comprising biomass-derived iron-doped carbon dots (Fe-CDs) as the probe and silver nanoclusters as the internal reference, was immobilized onto a polyvinyl alcohol (PVA) nanofiber membrane via electrospinning. The resulting sensor achieved a limit of detection (LOD) of 13.88 µmol/L for CPS and demonstrated excellent recoveries (98.52%–105.79%) in spiked cabbage samples. A deep learning model, integrated into a smartphone application, accurately quantified CPS by analyzing images of the sensor's visual response, showing a high correlation with actual concentrations ( R 2 = 0.991). This integrated system provides a simple, low-cost, and reliable tool for real-time food safety monitoring, successfully translating visual color changes into precise quantitative data.
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Nature Water
·
2026
·
IF 30.7
Liu Fu,Hao Fengkun,Sun Mingzi,Wang Helin,Yao Ning,Wang Yunhao,Wang Juan,Chen Peng,Ma Xintao,Zhou Jingwen,Xiong Yuecheng,Ma Yangbo,Wang Guozhi,Guo Liang,Meng Xiang,Shao Mingzheng,Wang Chaohui,Wang Miao,Qian Fangren,Ye Chenliang,Xi Shibo,Huang Bolong,Fan Zhanxi
Phase control of alloy nanomaterials can modulate their atomic/electronic structures towards various electrocatalytic applications. However, the controlled synthesis of high-entropy nanoalloys (HENAs) with unconventional phase remains challenging. Here we report the one-pot synthesis of RhCuNiInSb HENAs with the unconventional 2H phase through regulating the nucleation/growth kinetics. Compared with the face-centred cubic phase counterpart, 2H RhCuNiInSb HENAs exhibit superior electrocatalytic nitrate reduction performance at low nitrate concentration. Ex/in situ studies reveal the accelerated deoxygenation/hydrogenation kinetics and distinct reaction pathway. Theoretical calculations demonstrate the electronic optimizations induced by the face-centred-cubic-to-2H phase transition, where the electronic redistribution and p – d elemental interactions improve the surface electroactivity. When operated in flow cell, 0.5 l of simulated wastewater can be efficiently converted into the value-added ammonia-derived product within 10 h. With a 20-h electrolysis, the NO 3 − -N concentration in real industrial and agricultural wastewater can be both reduced above the World Health Organization standard for drinking water.
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Foods
·
2026
·Vol. 15
·期 16
·2867
·
IF 6
Peipei Ma,Runrun Zhang,Chen Li,Qiao He,Xinhui Zhang,Zhixiang Cai
Staphylococcus aureus(S. aureus) is a prominent foodborne pathogen that poses a continuous threat to global public health and food safety due to its possession of a variety of toxins and its multidrug resistance. Medium-chain fatty acids (MCFAs), notably lauric acid (LA), exhibit strong antimicrobial properties, but their application is heavily constrained by poor water solubility. In this study, optimized LA emulsions stabilized by chitosan (CS) and polyvinyl alcohol (PVA) were evaluated for their antibacterial activity and detailed mode of action againstS. aureusATCC 6538. The antibacterial activities were evaluated by the maximum inhibition zone, with the 20 CS-PVA/DLTA-LA formulation exhibiting stable dispersion and potent antibacterial activity at 1%. The underlying antibacterial mechanisms againstS. aureuswere specifically focused on cell membranes and peptidoglycan. Therein, the binding of emulsion droplets to the anionic bacterial surface was driven by electrostatic attraction. Membrane degradation was also observed with membrane dysfunctions involving membrane depolarization, increased permeability, and fluidity reduction triggered by their subsequent insertion into the lipid bilayer, which may cause cell dysmetabolism, disintegration, and eventual cell death. Overall, these findings substantiate that LA emulsions disruptS. aureusby operating potentially multi-targeted effects involving cell membrane disruption and peptidoglycan interference, offering a promising alternative approach warranting further investigation for foodborne pathogen control.
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JOURNAL OF RARE EARTHS
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2026
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IF 9.6
Wenli Qian,Mingliang Yang,Zhangliang Peng,Ruixian Wang,Chuancheng Zhang,Qi Zhang,Xiaofei Wang,Renqin Dou,Guihua Sun,Qingli Zhang
A novel Yb 3+ -doped (Sc 0.2 Y 0.8 ) 2 SiO 5 (Yb:SYSO) laser crystal with bulk size was firstly grown by the Czochralski growth method, exhibiting an X-ray rocking curve (XRC) full width at half maximum (FWHM) of only 0.034°. The optical properties, including refractive index, absorption spectrum, emission spectrum and fluorescence lifetime were systematically measured. The Yb:SYSO crystal exhibits a 40 nm FWHM absorption band at 972 nm, with an absorption cross-section of 0.72 × 10 −20 cm 2 , and a 76 nm FWHM emission band at 1040 nm, with an emission cross-section of 1.13 × 10 −20 cm 2 . The fluorescence lifetime is determined to be 1.05 ms. The superposition model (SM) was employed to fit the spin-orbit parameters ( ξ) and crystal field parameters ( ) of Yb:SYSO, achieving good consistency between the calculated and experimental crystal field levels. Furthermore, the continuous-wave (CW) and acousto-optic Q-switched (AOQS) laser operation of the Yb:SYSO crystal was demonstrated. In the CW laser experiments, the Yb:SYSO crystal delivers a maximum output power of 8.48 W at 1082.9 nm, with a slope efficiency of 46.86% and an optical-to-optical efficiency of 44.94%. Under AOQS operation, the Yb:SYSO laser produces up to 165 μJ pulse energy with 178 ns minimum pulse width at pulsed repetition frequency of 2 kHz, corresponding to a peak power of 927 W. The results indicate that Yb:SYSO crystal is a promising laser crystal material.
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ANALYTICAL AND BIOANALYTICAL CHEMISTRY
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2026
·
IF 4.1
Wei Ruxia,Sheng Wei,Chen Shengyu,Zheng Yiwei,Li Xu,Feng Na,Luo Yanni,Tan Xuecai,Huang Ke-Jing
The development of highly sensitive and selective platforms for trace Zn 2+ detection is crucial for environmental monitoring and biomedical diagnostics. Herein, a photoelectrochemical (PEC) sensor was constructed using an L-cysteine (L-Cys)-functionalized BiOBr composite, in which surface-interface engineering was adopted to enrich available recognition sites and modulate the interfacial PEC response. Compared with pristine BiOBr, the incorporation of L-Cys introduces abundant Zn 2+ binding functional groups and modifies the local surface environment of BiOBr, thereby enhancing the photocurrent response and enabling the selective recognition of Zn 2+ . The sensor operates through a signal-off mechanism, in which the coordination of Zn 2+ with surface-bound L-Cys forms an interfacial coordination layer that partially hinders mass transport and interfacial charge transfer, resulting in a decrease in photocurrent. Under optimized conditions, the platform exhibits a wide linear response ranging from 0.5 to 40 nmol/L, with a low detection limit of 2.69 nmol/L ( S / N = 3). Furthermore, the applicability of the sensor is validated in real-world scenarios, demonstrating excellent recoveries in tap water, lake water, and complex biological matrices such as HepG2 cell lysates (recoveries, 96.3–108.5%). This work provides a robust strategy for engineering bio-semiconductor interfaces for the detection of essential metal ions in complicated samples.
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Nature Communications
·
2026
·
IF 18.1
Liu Ao,Chen Sheng,Qin Hongyu,Cui Mangwei,Liu Youfa,Wei Shubing,Zhang Kun,Huang Yan
The increasing demand for high-energy-density batteries pushes practical aqueous Zn-based batteries. However, high Zn utilization achieved in coin symmetric cells is unable to translate to full cells, especially large pouch cells, due to the poor reversibility of Zn and capacity output of high-loading positive electrodes. Here, solid-solid interfacial conversion mechanisms via chelation at electrodes-electrolyte interfaces effectively suppress parasitic reactions being widely prevalent under traditional solid-liquid conversion mechanisms. Consequently, high Zn utilization ( ≥ 78.3%) is unified across coin symmetric, coin full and pouch full cells. The Zn | |I 2 pouch cell (10 cm×10 cm) demonstrates a specific energy of 116.8 Wh kg −1 (based on total mass) and over 850 cycles (85.1% capacity retention) at 10 mA cm −2 . Furthermore, solid-solid interfacial conversion mechanisms exhibit universality across halogen positive electrodes, advancing practical aqueous Zn | |halogen batteries.
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Science China-Technological Sciences
·
2026
·Vol. 69
·期 8
·1820501
·
IF 5.1
Miao Xiao,Song Shiqi,Yang Yanming,Zhang Peiyu,Ren Guina
In response to the problems encountered in clean water production and environmental restoration, this paper designed a multifunctional interfacial evaporation device. The evaporator was constructed by integrating a carbon quantum dot-bismuth oxybromide (CQD/BiOBr-E) supporting layer with an agaric-hydrogel photothermal conversion layer. Thanks to its excellent non-wetting property (CA = 158.3°), the floating layer can selectively remove oil. Importantly, the degradation of water-soluble pollutants has been achieved. Even after 10 degradation cycles, the degradation efficiency can still reach 92.6%, showing that CQD/BiOBr-E has excellent long-term degradation stability. The active species capture experiment demonstrated that ·O 2 − and h + are the main active species. With the agaric-hydrogel as the photothermal layer, the assembled interfacial evaporator reached an evaporation rate of 1.52 kg m −2 h −1 . This multifunctional interfacial evaporator is designed to provide solutions for environmental pollution and water shortage problems.
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JOURNAL OF APPLIED POLYMER SCIENCE
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2026
·
IF 3.1
Haoxiang Yang,Jiaheng Wang,Wei Wang,Xiaoyan He,Jinghua Lu,Jingyue He,Xiao Jing,Yong Wei,Yatang Dai
Polyacrylamide is widely used in petroleum drilling due to its excellent thickening ability in hydrochloric acid systems, yet as petroleum development advances toward ~10,000-m-class ultra-deep wells and downhole temperature rise substantially, the high-temperature aging behavior and failure mechanisms remain insufficiently elucidated. Herein, we synthesized three polyacrylamide-based thickeners, including an AM homopolymer, an AM/DAC copolymer, and an AM/DAC/NVP terpolymer, and systematically investigated their high-temperature aging behavior and failure mechanisms. It was found that all three thickeners lost stability during high-temperature acidic aging. Initially, the polyacrylamide-based thickeners formed gel-like flocculates, which further evolved into brownish-black solids with increasing aging temperature and time. Mechanistic analysis indicates that, under high-temperature acidic conditions, polyacrylamide-based thickeners undergo acid-catalyzed hydrolysis of AM amide groups and DAC ester linkages to form polyacrylic acid structures, while NVP suppresses this process by weakening neighboring-group effects; then the resulting polyacrylic acid undergoes further dehydration/condensation to form intrachained anhydride (cyclization) and interchain anhydrides (crosslinking), increasing hydrophobicity and ultimately causing the failure of the thickeners. This work elucidates the aging behavior and failure mechanism of polyacrylamide-based thickeners in high-temperature acidic, guiding the design of high-temperature acidic thickeners.
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