Foods
·
2026
·Vol. 15
·期 3
·479
·
IF 5.1
Baizhi Cen,Juge Liu,Mengyuan Tan,Bo Wang,Lu Gao,Zhenquan Yang,Genxi Zhang,Tao Zhang,Xuechao Xu
In this study, a silver-based metal–organic framework (Ag-MOF) nanozyme was synthesized for the synergistic eradication of drug-resistantSalmonellaenteritidisin food matrices. Ag-MOF exhibits multiple enzyme-like activities, namely oxidase (OXD)-, peroxidase (POD)-, and superoxide dismutase (SOD)-like activities. It demonstrated excellent antibacterial and antibiofilm activities against erythromycin- and chloramphenicol-resistantS. enteritidisstrains (N29 and P23). Specifically, treatment with 20 mg mL−1Ag-MOF resulted in nearly complete eradication ofS. enteritidisin in vitro suspension assays, including 1 × 107CFU mL−1N29 strain and 6 × 106CFU mL−1P23 strain. Moreover, treatment with 1 mg mL−1Ag-MOF led to 80~90% biofilm inhibition ofS. enteritidis. Mechanistic investigations revealed that Ag-MOF effectively interacted with amino-rich structures on the bacterial surface (such as membrane proteins and peptidoglycan components), generated abundant reactive oxygen species (ROS), released Ag+ions, and depleted intracellular glutathione, which collectively disrupted cell membrane integrity and induced severe leakage of intracellular proteins and nucleic acids. Importantly, Ag-MOF maintained high antibacterial efficacy in complex simulated food matrices (pork, milk, and egg shell). Overall, this study offers key insights into enzyme-mimicking antibacterial materials and a promising strategy to combat multidrug resistant foodborne pathogens.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2026
·
IF 8.7
Yue Feng,Puxiang Zhao,XueChang Pei,Di Liu,Pengfei Ma,Chuanxi Wang,Mingxian Liu
Diabetic wounds frequently develop infections and impaired healing due to the hyperglycemic microenvironment, creating a need for dressings with combined antibacterial and tissue-regenerative functions. Here, the lumens of halloysite nanotubes (HNTs) were employed for confined in-situ synthesis of silver nanoparticles (Ag@HNTs), which were then incorporated into a chitosan matrix by solution mixing and freeze-drying to produce porous Ag@HNTs-CS sponges. The lumen-confined synthesis generated uniformly distributed Ag nanoparticles in the HNT lumens, which reduced aggregation and direct cell contact, thereby lowering toxicity and enabling sustained Ag + release. The composite exhibited triple antibacterial functionality, combining bactericidal effects mediated by chitosan, Ag + sustained release, and enhanced photothermal activity under 808 nm irradiation, strongly inhibiting E. coli and S. aureus . In a diabetic rat model with infected full-thickness skin defects, these sponges significantly promoted wound healing. Mechanistically, the sponges reduced TNF- α , increased IL-10 and VEGF, mitigating inflammation while enhancing neovascularization and collagen deposition. The confined-synthesis of metal nanoparticles within the HNT lumens and incorporation into a biopolymer matrix ensures sustained metal ion release, high photothermal performance and bioactivity, which offer a promising strategy for infected wound management.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Zhongwei Wang,Zhu Liu,Yipeng Tang,Wulin Yang,Yan Qing,Yiqiang Wu,Shoulu Yang
Most industrial adhesives are derived from petroleum-based feedstocks, raising concerns about sustainability and environmental impact. Although bio-based alternatives have been explored, they often suffer from limited mechanical strength and poor water resistance. In this study, a high-performance bio-based epoxy adhesive was developed using raw black liquor as a direct source of kraft lignin. The synthesis involved epoxidation followed by cross-linking polymerization with diethylenetriamine and maleic anhydride. After thermal curing at 180 °C for 2 h, the adhesive exhibited an exceptional lap shear strength of 32 MPa on aluminum substrates, outperforming all previously reported lignin-based adhesives and even most commercial adhesives. This enhanced adhesion is attributed to structural amido-ester covalent bonds in the adhesive, as well as the multiple three-dimensional hydrogen bond networks formed between the hydroxyl/amino groups on the amido-ester chains and the substrate interface. The adhesive also demonstrated a level of water resistance. The experimental results were strongly supported by DFT and MD simulations, which confirmed the role of interfacial hydrogen bonding in adhesion. This work presents a scalable approach for valorizing lignin-rich industrial waste streams into advanced adhesive systems with competitive performance.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.7
Wanying Zhang,Kaihuai Zhuo,Jie Chen,Tongtong Wang,Xuanyang He,Mengjie Li,Weilin Gao,Yiran Zhao,Xue Yang,Zhuoyin Peng,Xiaoyu Zhang,Yingwei Wang,Keqiang Chen,Guogang Li
Surface ligands are crucial for perovskite quantum dot (PQD) optoelectronics. However, long alkyl chains limit charge transport, while short chains destabilize their soft lattice, presenting a stability–mobility dilemma. Moreover, surface-bound protonated primary amines are susceptible to deprotonation, accelerating performance decay and structural collapse. In this work, we introduced tetrabutylphosphonium bromide (TBPB) as a surface passivation ligand to overcome these limitations. TBPB combines minimal molecular polarity—enabling a short chain for superior charge transport—with a fully coordinated phosphonium center that resists deprotonation and passivates halogen vacancies. This yields quantum dots with near-unity PLQY and robust stability, leading to LEDs achieving a maximum external quantum efficiency (EQE) of 24.28% and luminance of 122,786 cd m −2 , far surpassing control devices. Further shortening the ligand chain increases EQE to 27.89% but at the cost of severe luminance loss, underscoring the delicate balance in ligand engineering.
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Advanced Optical Materials
·
2026
·
IF 7.2
Jialong Xu,Yubiao Yue,Zhishan Chen,Hongqiang Zhu,Shaoan Zhang,Yiqing Chen,Huiwang Lian,Yuzhen Wang,Jia Xu,Linhai Li,Yang Li
Rapid, instrument-free detection of mercury ions (Hg 2+ ) is critical for addressing environmental emergencies, yet current methods face limitations in poor portability and sensitivity. Herein, a deep learning-optimized paper-based kit that incorporates controllable turn-off fluorescence of metal halide perovskite for instrument-free time-critical Hg 2+ detection by the dynamic quenching mechanism and ensures visual discernment at 2 ppb, achieving a 1000-fold sensitivity improvement over commercial strips is presented. Furthermore, a smartphone app powered by the deep learning model (MobileViT) further optimizes sensitivity, achieving ultrasensitive quantification (0.11 ppb limit of detection) across a 0.2–200 ppb linear range (R 2 = 0.987) with 98% overall accuracy, and the whole detection is completed only within 5 min. This approach of instrument-free time-critical Hg 2+ detection anticipates a new paradigm for rapid and on-site Hg 2+ monitoring in environmental and industrial settings.
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Solar RRL
·
2026
·Vol. 10
·期 1
·e202500927
·
IF 4.7
Yu Li,Guo Lu,Jieyu Zheng,Jie Chen,Shuaibing Wang,Mengmeng Ma,Zhijie Wang,Aiwei Tang
Ensuring broad-spectrum visible-light absorption and efficient electron extraction is essential for enhancing the efficiency of photocatalytic hydrogen production. To achieve this, manipulating carrier dynamics through cocatalyst heterojunction engineering has attracted considerable concern. However, conventional narrow-bandgap Cu–In–Zn–S (CIZS) nanocrystals (NCs) typically exhibit limited photocatalytic activity due to severe exciton annihilation. Herein, two-dimensional (2D) CIZS nanobelts (NBs) were coupled with Ni 9 S 8 cocatalyst to construct a library of CIZS/Ni 9 S 8 Schottky heterojunctions synthesized via a combined colloidal one-pot and hot-injection strategy. As anticipated, the CIZS/2.0%Ni 9 S 8 heterojunction displayed the optimal photocatalytic hydrogen evolution activity of 2.75 mmol g −1 h −1 , ≈3.31 times higher than that of pristine CIZS NBs (0.83 mmol g −1 h −1 ). Experimental results uncovered that the enhanced photocatalytic performance originated from the formation of the CIZS/2.0%Ni 9 S 8 Schottky heterojunction, which facilitated efficient charge transfer from CIZS NBs to Ni 9 S 8 and hindered the return of electrons. Moreover, Ni 9 S 8 serves as active catalytic sites, significantly accelerating surface proton reduction reactions. This study provides valuable insights into the rational design and precise synthesis of colloidal multinary Cu-based chalcogenide heterojunctions for efficient photocatalytic energy conversion.
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NEW JOURNAL OF CHEMISTRY
·
2026
·
IF 2.5
xiaolong Ma,Song Hu,Jiaqin Wang,Guochang Lv,Yuxue Hu,Yu Xiao,Gang Hu,Biao Qin
To address the bottlenecks of high cost and insufficient stability of commercial Pt-based catalysts for alkaline hydrogen evolution reaction (HER), a novel Pt₂₇Fe₃₀Co₂₇Ni₉Mo₇/C high-entropy alloy nanocatalyst was synthesized via a facile one-step solvothermal method. Material characterizations (XRD, TEM, XPS, ICP-OES) confirmed that the catalyst has a homogeneous face-centered cubic (FCC) structure, with ~14.65 nm nanoparticles and uniform atomic-scale dispersion of Pt, Fe, Co, Ni, Mo. All metals exist in mixed metallic/oxidized states, favoring electron transfer and intermediate adsorption. Electrochemical tests in 1 M KOH showed exceptional HER performance: 24 mV overpotential at 10 mA cm⁻², 48.44 mV dec⁻¹ Tafel slope, 2.388 s⁻¹ turnover frequency (TOF) at 50 mV overpotential, outperforming quaternary Pt₂₇Fe₂₉Co₃₃Ni₁₁/C and commercial Pt/C. It maintained activity/structure after 5000 CV cycles and 40000 s chronopotentiometry. Mechanistically, the synergistic effect of balanced Pt/Fe/Co/Ni/Mo elemental ratios and Mo-induced d-band center shift optimizes *H/*OH adsorption—weakening excessive *H adsorption while promoting *OH adsorption—thus enhancing alkaline HER kinetics. This work offers a strategy for high-performance Pt-based catalysts, with great industrial application potential in alkaline water electrolysis.
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MICROCHEMICAL JOURNAL
·
2026
·
IF 5.1
Penghao Zhu,Guang Zheng,Kaili Gao,Duoxia Xu,Xiaohua Nie,Yuanchao Lu,Guijie Hao,Xianghe Meng
Size and shape critically influence the optical properties of CsPbBr 3 NCs, but lack sufficient research in sensing. Herein, particle sizes and shapes of CsPbBr 3 NCs were precisely adjusted by room-temperature synthesis method, and sensing performances to peroxide value (PV) of edible oils were investigated. The results found that the particle sizes (4.3 ± 0.2, 6.3 ± 0.2, 8.8 ± 0.3, and 12.9 ± 0.6 nm) of high-crystallized cubic CsPbBr 3 NCs were precisely obtained, and the fluorescence (from 491 to 516 nm) and absorption (from 470 to 526 nm) peak wavelengths redshifted as the particle size increased from 4.3 nm to 12.9 nm. Among four particle sizes, CsPbBr 3 NCs (8.8 nm) demonstrated the optimal sensing performance (wavelength-shifted colorimetric method R 2 = 0.99) for PV detection, achieving a linear response range of 0.02–0.36 g/100 g with LOD of 0.0022 g/100 g and LOQ of 0.0073 g/100 g. Considering the interference from trace moisture in edible oil, a moisture-compensated intensity-quenched colorimetric method was proposed to improve the practical accuracy, with the practical recovery rates from 95%–245% to 90%–119%. Therefore, the proposed methods had good sensitivity, accuracy and practicability, and enlightened the effective technologies for the quality detection of edible oil.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 13.2
Qianqian Song,Hao Chen,Kanghui Zheng,Yueling Lai,Zhongshan Li,Xin Yang,Ruilin Wang,Yufeng Zhou
Lanthanide-doped upconversion nanoparticles (UCNPs) are extensively used in spectral conversion layers of photovoltaic (PV) devices to capture near-infrared (NIR) light. However, surface quenching effects and low upconversion quantum yield (UC QY) of UCNPs limit their utilizations in PV devices. In this work, novel multishell NaYF 4 @NaYF 4 : Yb, Er@NaYF 4 (CSS) UCNPs have been synthesized via thermal decomposition method. The CSS UCNPs exhibit enhanced UC emission intensity by 36.33 times and UC QY by 38 times with respect to those of NaYF 4 : Yb, Er UCNPs, with a significant increase in fluorescence lifetime. After incorporating CSS UCNPs with Cadmium Telluride (CdTe) solar cells, the device achieved a power conversion efficiency (PCE) of 16.02% under AM 1.5G illumination, a 5.9% increase compared to the bare CdTe solar cell, and exhibited more than a 76-fold enhancement in efficiency under 980 nm excitation. This study demonstrates the synergistic effects of the multilayer shell structural UCNPs with enhanced luminescence and engineered interfaces between CdTe and back electrode, offering a scalable strategy for efficient infrared-responsive photovoltaic devices.
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OPTICAL MATERIALS
·
2026
·
IF 4.2
Zhiqun Xu,Bo Hou,Pingping Fan,Zhonghua Pan,Guobin Huang,Teng Gao
The widespread use of sulfadiazine (SDZ) in veterinary medicine and its subsequent accumulation in environmental waters necessitate the development of sensitive and selective monitoring tools. This study presents a novel hierarchical core-shell fluorescent nanocomposite, FAPbBr 3 PNCs@SiO 2 @MIP, for the ultrasensitive and selective detection of SDZ. The sensor was constructed by encapsulating water-sensitive formamidinium lead bromide perovskite nanocrystals (FAPbBr 3 PNCs) with a protective silica shell, followed by the grafting of a molecularly imprinted polymer (MIP) layer. The silica coating markedly improved the aqueous stability of the PNCs, while the MIP layer provided specific recognition cavities for SDZ, enabling detection through a photoinduced electron transfer-mediated fluorescence quenching mechanism. Under optimal conditions, the sensor demonstrated a wide linear response from 0.1 to 200 ng/mL and a remarkably low detection limit of 0.03 ng/mL. It also exhibited excellent selectivity against structurally analogous sulfonamides and common interfering ions (Imprinting factor is 3.9), along with high reproducibility and stability in complex media (94.3–100.9 % for the same batch, 98.9–101.4 % and 99.2–104.2 % for different batches). The practical applicability was validated through the successful detection of SDZ in real water and pork samples (Recovery was 99.2–112.0 %, RSD was 2.3–8.9 %), yielding results in good agreement with those from the standard liquid chromatography coupled with mass spectrometry (LC-MS) method. This work establishes a robust and reliable sensing platform for trace-level SDZ monitoring in environmental and food safety applications.
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Photonics
·
2026
·Vol. 13
·期 1
·89
·
IF 1.9
Yingying Xu,Xiaomeng Xue,Lixiong Wu,Zhikai Gan,Menglu Chen,Qun Hao
Multispectral infrared detection plays a crucial role in advanced applications spanning environmental monitoring, military surveillance, and biomedical diagnostics, offering superior target identification accuracy compared to single-band imaging techniques. In this work, we synthesized four distinct bands of colloidal quantum dots (CQDs)—specifically, a cut-off of 1.3 µm with PbS CQDs and 1.8 µm, 2.6 µm, and 3.5 µm with HgTe CQDs—and employed them to construct planar multiband infrared photodetectors. The device exhibited a clear photoresponse at room temperature from 0.8 µm to 3.5 µm, with responsivity of 5.39 A/W and specific detectivity of 2.01 × 1011Jones at 1.8 µm. This materials–device co-design strategy integrates wavelength-selective CQD synthesis with planar pixel-level patterning, providing a versatile pathway for developing low-cost, solution-processed, multiband infrared photodetectors.
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Journal of Materials Chemistry C
·
2026
·
IF 5.1
Fazl Ullah,Muhammad Sohail,Nimra Razzaq,Intikhab Alam,Taha Sheheryar,Zia Ullah,Muhammad Sohail,Qiuyun Ouyang
The nonlinear optical (NLO) properties of lead-free halide perovskites are of significant interest for photonic applications, yet strategies for compositional engineering remain limited. In this work, SbBr3-doped Cs3BiBr6 nanocrystals (Cs3BiBr6/SbBr3) were prepared using a hot-injection synthesis method and subsequently embedded in poly(methyl methacrylate) (PMMA) to fabricate organic glass (OGs). X-ray diffraction (XRD) and transmission electron microscopy (TEM) analyses confirmed that the materials exhibited high phase purity along with a uniformly dispersed nanoscale structure. Z-scan measurements using a 532 nm nanosecond laser demonstrated that Cs3BiBr6/PMMA matrix displayed a NLO response, shifting from saturable absorption (SA) to reverse saturable absorption (RSA). Whereas Cs3BiBr6/SbBr3/PMMA showed dominant RSA with enhanced optical limiting (OL) performance. The effective nonlinear absorption coefficient (β) decreased from 2.10×10-8 to 1.35×10-8 mW-1 with increasing excitation energy, highlighting the role of Sb incorporation in strengthening RSA. First-principles calculations revealed stable integration of Sb into the perovskite lattice, narrowing the bandgap and introducing Sb states near the Fermi level, thereby enhancing light–matter interactions. These results demonstrate that Sb-doped Cs3BiBr6 is a promising lead-free perovskite for advanced NLO devices such as optical switches and optical limiters.
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