Food and Bioprocess Technology
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2015
·Vol. 8
·期 5
·1011-1019
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IF 2.691
Yang Huqing,Zheng Jianying,Huang Chengqian,Zhao Xiaofei,Chen Huiyun,Sun Zhidong
This study was conducted to investigate the effects of aqueous chlorine dioxide (ClO 2 ) combined with chitosan coating on microbial growth and quality maintenance of fresh-cut bamboo shoots during cold storage. Fresh-cut shoots respiration rate, weight loss, firmness, lignin, colour, microbial and activities of phenylalanine ammonia lyase (PAL), cinnamyl alcohol dehydrogenase (CAD), peroxidase (POD) and polyphenol oxidase (PPO) were measured. The results indicated that treatment with 28 mg L −1 ClO 2 plus chitosan coating inhibited increase in respiration rate and firmness, delayed browning and lignification and reduced microorganism counts of total aerobic bacteria and yeasts and moulds compared to control treatment. The efficiency was better than that of ClO 2 or chitosan treatment alone. Furthermore, combination of ClO 2 and chitosan inhibited the activities of PAL, CAD, POD and PPO throughout the storage period. Our study suggests that ClO 2 plus chitosan coating treatment may be a promising method of maintaining fresh-cut bamboo shoot quality and extending their postharvest life.
研究领域:
采后生理学
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食品科学
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园艺科学
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食品保鲜
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JOURNAL OF MATERIALS SCIENCE
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2026
·
IF 3.9
Hu T. T.,Xie Y. X.,Zhao K.,Yang X. S.
Trace oxygen-doped FeSe 0.4 Te 0.6 single crystals were synthesized using the self-flux method to investigate the effects of oxygen incorporation on their crystal structure, superconducting transition, and flux pinning properties. Experimental results indicate that trace O-doping effectively modulates the superconducting transition temperature ( T c ) and enhances the critical current density ( J c ), with a more pronounced improvement in current-carrying capacity observed under high magnetic fields. Based on the Dew–Hughes model analysis, the sample with 0.5% O-doping exhibits the most robust pinning effect. This study demonstrates that trace oxygen doping can effectively optimize the superconducting performance of FeSe 0.4 Te 0.6 and reveals the existence of an optimal doping regime, which provides valuable insights into the mechanism and practical application of iron-based superconductors.
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POLYMER BULLETIN
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2026
·Vol. 83
·期 5
·215
·
IF 4
Wang Song,Ma Rumeng
Coating polyethylene terephthalate (PET) fabrics by flame-retardant polyacrylate (PAc) is considered as a convenient and efficient method for improving the flame retardancy of PET fabrics. In this study, melamine (MEL) was reacted with phytic acid (PA), leading to the successful synthesis of a PA-based flame retardant, MP. Subsequently, aluminum diethylphosphinate (ADP) and MP were compounded at a mass ratio of 18:2 and incorporated into the PAc coating to prepare a flame-retardant PAc coating. When this flame-retardant PAc coating was coated to the surface of PET fabric, PET-ADP-MP 18:2 was obtained. The PET-ADP-MP 18:2 fabric exhibited excellent flame-retardant performance, achieved fire rating B 1 in the Vertical flammability test (VFT), with a limiting oxygen index (LOI) of 26.3%. Compared to the untreated PET fabric, the peak heat release rate (PHRR) was reduced by 70.81%. Moreover, the mechanical properties of PET-ADP-MP 18:2 were also improved. The tensile strength in the warp direction increased by 41.7%, while that in the weft direction increased by 57.7%. The flame retardant obtained by the combination of ADP and MP is therefore considered to hold significant potential for application in the field of flame-retardant PET fabrics (FR-PETs).
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JOURNAL OF POLYMER RESEARCH
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2026
·Vol. 33
·期 1
·32
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IF 2.8
Zhang Wei,Li Haodan,Li Yuhang,Hu Feng,Cheng Qing,Liao Youwei,Yang Yan
In this work, a bio-based multifunctional composite film was fabricated by reinforcing a tung oil–natural rubber (N-TO) matrix with nano-ZnO via Diels-Alder modification and ultrasonic dispersion. The NR segments suppressed excessive crosslinking of tung oil, yielding a flexible semi-interpenetrating network, while well-dispersed ZnO nanoparticles enhanced thermal, photo-oxidative, and antibacterial performance. Compared with N-TO films, the ZnO-N-TO composite showed a significant increase in the initial decomposition temperature from 151.5 ℃ to 183.4 ℃ and in the residual carbon yield at 800 ℃ from 8.0% to 18.2%. Under UV irradiation, the color difference decreased from 9.6 to 3.1, reflecting more than 67% improvement in photo-stability. Antibacterial tests revealed clear inhibition zones of 6 mm against E. coli and 8 mm against S. aureus, whereas N-TO showed almost no activity. This work demonstrates a scalable and green approach to designing bio-based polymer films with integrated durability and antibacterial functionality, suitable for eco-friendly coatings and packaging applications.
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Nature Communications
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2026
·
IF 15.7
Wu Ke-Hui,Sun Zefei,Zhu Li-Ting,Li Sen-Sen,Hu Xuejia,Liu Qing Huo,Chen Lu-Jian
Topological soft matter systems rely on controllable defect structures to encode functionality, yet robust, large-scale, and reconfigurable manipulation strategies remain elusive. Here we present a versatile acoustic platform for dynamic control of liquid crystal defect arrays via engineered topological wavefields. By coherently superimposing surface acoustic waves, we generate spatially structured potential landscapes and acoustic streaming vortices that interact with the molecular orientation field of liquid crystals, enabling dynamic reconfiguration of topological defects. Tuning the acoustic parameter space allows precise modulation of defect density, symmetry, morphology, and spatial positioning. A theoretical framework based on Ginzburg-Landau modeling and free energy minimization captures the formation of vortex-induced instabilities and associated topological textures. The platform operates across diverse liquid crystal compositions, demonstrating material generality. This acoustically driven approach offers a scalable strategy for programmable topological structure in soft matter, with potential applications in reconfigurable photonic devices and active material systems.
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PubMed
高影响因子
Nature Communications
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2026
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IF 15.7
Liu Shuxia,Wang Tanyuan,Liu Jiarui,Liu Jianyun,Shi Hao,Lin Zijie,Cai Zhao,Huang Yunhui,Li Qing
Reducing the energy cost and CO 2 emission of traditional urea synthesis through alternative strategy is crucial for the sustainable social development. Herein, we report the electrosynthesis of urea from nitrate and CO 2 on Ag/CdO heterostructured catalyst with low overpotential. The optimized Ag 0.07 /CdO catalyst demonstrates a high urea yield rate of 111.6 ± 3.1 mmol g cat. –1 h –1 with 50.0 ± 2.7% Faradaic efficiency at −0.15 V vs. RHE in a flow cell, and can further achieve a urea yield rate of 427.0 ± 30.2 mmol g cat. –1 h –1 in an optimized two-electrode cell with stable response for 1000 h. Operando spectroscopy and theoretical calculations indicate that Ag attracts *NO 2 intermediate as well as promotes the reconstruction of CdO into low coordinated CdCO 3 that facilitate the activation of CO 2 , thus benefits *CO/*NO 2 adsorption and coupling at low overpotential as well as suppresses the generation of CO and NH 3 by-products.
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PubMed
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Science China-Chemistry
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2026
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IF 9.7
Zhang Chong,Li Yuanbo,Cui Congcong,Che Shunai,Han Lu,Cao Yuanyuan
Guanine crystals are renowned as one of the most appealing biogenic organic optical crystals in living organisms, widely known for their high refractive index, rivaling inorganic crystals. Since their optical excellence is governed by specific morphologies, it is imperative to comprehend the methods for controlling the growth and assembly of guanine crystals. However, the artificial control over their morphology, especially in repeating the biogenic ones, remains a formidable challenge. Herein, we present a biomimetic synthesis strategy to engineer hierarchical guanine crystal polymorphs by controlling the primary nuclei growth processes, followed by the structural modulation under the competition of hydrogen bonding and π-π interactions. Five typical crystal morphologies, ranging from dense spherical polycrystalline aggregates to thin flake crystals, were successfully synthesized. The crystallization mechanism was analyzed using principal component analysis (PCA) method in machine learning technology, where the crystal nucleation behaviors were found to be critical in determining the crystal hierarchies and a three-dimensional synthesis-field diagram mapping 30,000 possible parameter combinations has been predicted. Additionally, these morphologies significantly affect the birefringence and the reflection of the crystals. This work provides a way for tailoring biogenic crystals through precise crystal nucleation regulation and growth-directed assemblies.
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JOURNAL OF MATERIALS SCIENCE
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2026
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IF 3.9
Feng Min,Bai Zhongchen,Chen Qixin,Peng Xishun,Li Xinghua,Zhang Zhengping
In this study, we selected CsPbBr 3 quantum dots (QDs) as a modification layer of CsPbBr 3 /Carbon interface to facilitate their charge transfer for enhancing the photoelectronic conversion efficiency of ZnO/CsPbBr 3 /carbon solar cell. The results demonstrated that CsPbBr 3 QDs layer simultaneously improved film morphology, composition, and optoelectronic properties. This was achieved by filling pinholes, enlarging grain size, suppressing secondary phases, tuning elemental stoichiometry, enhancing electron transport, and reducing non-radiative recombination. The optimized device achieved an increase in PCE from 5.46% to 7.27%. This method and structure of solar cell we proposed in this paper provides a novel strategy for improving high-performance and high-stability PSCs.
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Nature Communications
·
2026
·Vol. 16
·期 1
·11082
·
IF 15.7
Gong Anwen,Liu Cong,Yang Jiexi,Li Binghuan,Yang Shilin,Yang Rongshan,Wang Yousheng,Shen Kai,Xue Qifan,Li Zhiqiang,Wang Jing,Zou Bingsuo,Mai Yaohua
The inferior heterojunction quality and misaligned energy levels at the buffer/absorber interface cause severe interface recombination and large open-circuit voltage ( V OC ) loss, limiting the power conversion efficiency (PCE) of antimony selenosulfide (Sb 2 (S,Se) 3 ) solar cells. Here, we develop a field-effect passivation strategy by introducing a low-work-function Ta 2 O 5 dielectric layer between the CdS and Sb 2 (S,Se) 3 layers. This Ta 2 O 5 layer serves as an optimal substrate for growing highly crystalline Sb 2 (S,Se) 3 films while also enhancing interfacial charge transport. The positive fixed charges in Ta 2 O 5 strengthen the built-in electric field and promotes electrons extraction while suppressing holes accumulation at the interface, thereby substantially suppressing non-radiative recombination probabilities. Implementing this passivation strategy yields a record PCE of 10.95% (10.65% certified) an V OC of 695 mV, corresponding to a remarkably low voltage deficit. This work establishes a universal physical passivation paradigm for interface quality optimization and V OC loss mitigation in high-performance Sb 2 (S,Se) 3 photovoltaics.
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PubMed
高影响因子
Journal of Inorganic and Organometallic Polymers and Materials
·
2015
·Vol. 25
·期 4
·879-885
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IF 1.16
Wu Kai-Fei,Jiang Fen,Bai Xian-Li,Mo Shao-Yin,Qin Gui-Fang,Feng Yu
Solvothermal reaction of Pb(NO 3 ) 2 with terephthalate acid afforded one new inorganic–organic hybrid framework, [Pb(PBDC)] n ( 1 ) (H 2 PBDC = terephthalic acid). X-ray analysis shows that compound 1 crystallizes in orthorhombic space group Pbca and the two carboxy group of terephthalate acid adopt rare coordination modes. A noticeable point in this paper that compound 1 exhibits preferable catalytic property on degradation of Rhodamine B. The phase purity of the as-synthesized sample was confirmed by powder X-ray diffraction. Moreover, satisfactory elemental analysis, IR spectra, and thermogravimetric analysis were obtained.
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高影响因子
Journal of Food Measurement and Characterization
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2026
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IF 3.6
Zhou Shiyang,Wang Wenbin,Di Ning
To explore the high-value utilization of water chestnut peel, this study focused on the preparation, structural characterization, and in vitro biological activities of its polysaccharides. Polysaccharides were extracted by hot water, purified via water-soluble alcohol precipitation, deproteinization, and dialysis to obtain refined water chestnut peel polysaccharide (WCPP). The crude polysaccharide yield was 12.2%, with the purified product achieving a maximum purity of 90.1%. Structural characterization showed WCPP had a weight-average molecular weight (Mw) of 47.4 kDa and number-average molecular weight (Mn) of 32.1 kDa, with glucose (86.59%) as the dominant monosaccharide, accompanied by small amounts of galactose (4.15%), arabinose (2.40%), xylose (1.18%), rhamnose (0.56%), mannose (0.46%), and acidic monosaccharides (galacturonic acid: 3.74%; glucuronic acid: 0.91%), belonging to a low-pectin-like substance. In vitro antioxidant assays indicated deproteinized WCPP exhibited potent radical scavenging (DPPH: 94%, hydroxyl: 92%, superoxide anion: 93%) and reducing ability (0.91) at 3.2 mg/mL, approaching vitamin C (Vc) levels. Using the RAW264.7 cell model, WCPP dose-dependently inhibited hydrogen peroxide-induced damage by downregulating malondialdehyde (MDA) production and enhancing catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase (GSH-Px) activities to alleviate oxidative stress. In vitro hypoglycemic studies showed WCPP blocked starch digestion and glucose absorption via inhibiting α -amylase and α -glucosidase activities (dose-dependent), while medium and high concentrations significantly increased glucose consumption in insulin-resistant HepG2 cells. This study provides an efficient technical route for water chestnut peel waste recycling and theoretical/experimental support for developing natural antioxidant and hypoglycemic functional foods or health products.
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CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
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2026
·
IF 4.7
Gao Yuxuan,Kong Qiyu,Wang Jun,Sun Fengwei,Liu Xinyu,Wang Deliang,Li Jiangao,Yang Zhen
Developing organic type I photosensitizers (PSs) that generate less oxygen-dependent reactive oxygen species (ROS) has long been recognized to be an appealing yet significantly challenging task in the field of photodynamic therapy (PDT), owing to the high oxygen dependency of conventional PDT, which impairs its overall therapeutic efficacy, particularly in hypoxic solid tumors. Herein, a molecular fluorination strategy to finely regulate PSs with bright near-infrared (NIR) fluorescence and superior type I ROS generation ability was exploited. Benefited from the improved donor-acceptor interaction, promoted intersystem crossing process, and increased spin-orbit coupling (SOC) constant, the optimal TIBT-5F simultaneously exhibits broad absorption with a larger molar extinction coefficient in the visible-light region, bright NIR fluorescence emission and stronger type I ROS generation efficiency, making TIBT-5F a promising candidate for precise NIR fluorescence-guided PDT. The as-prepared TIBT-5F nanoparticles (NPs) can quickly accumulate in the tumor site, effectively produce both type II and type I ROS and prominently suppress the tumor growth under a safe white light irradiation (40 mW/cm 2 ) with minimized systemic toxicity. This study thus offers a new insight into constructing advanced type I PSs for precise fluorescence imaging-guided tumor theranostics.
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