Food & Function
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2019
·Vol. 10
·期 2
·625-634
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IF 3.241
Jieyu Wu,Rongfa Guan,Haizhi Huang,Zhenfeng Liu,Haitao Shen,Qile Xia
The instability of catechins (CT) is currently a challenge for their application in the food industry. This study explored whether or not the protective effects of liposome encapsulation on CT could enhance the role of CT as antioxidants in reducing nitrosamines (NAs) in traditional Chinese bacon (TCB). The samples were further characterized by the analysis of volatile compounds, color parameters, and texture profile during storage to assess the effects of catechin liposomes (CTL) on TCB. Results showed that the increase in NAs in fried TCB was strongly dependent on the storage time. CTL could reduce the production of NAs in fried TCB (40.45%) more strongly than CT (15.13%) after 49 days of storage. Higher phenol contents were found in CTL (1515.25 × 106 area unit (AU)) than those in control (1451.73 × 106 AU) and CT (1391.10 × 106 AU) TCB at the end of storage. The addition of antioxidants increased (p < 0.05) a* values in the following order: CTL > CT > control with mean values of 6.54, 5.09, and 3.92, respectively, after 49-day storage. Conversely, the addition of CTL decreased (p < 0.05) the hardness of TCB. Encapsulating CT in the liposomes can effectively reduce the NAs in TCB and positively affect its quality. This technique may guide the potential application of liposomes in the meat industry.
研究领域:
食品科学
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生物学
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营养学
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ANALYTICAL CHEMISTRY
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2025
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IF 6.7
Ao Wang,Qianqian Ding,Jiahao Mou,Hongbin Qi,Jiazhi Yang,Urol K. Makhmanov,A. V. Rogachev,Xiaohong Jiang
Plastic pollution has emerged as a critical global environmental challenge, posing substantial risks to ecosystems’ stability, biodiversity conservation, and public health protection. However, technique limitations persist in detecting and analyzing plastic particles within complex environmental matrices. This study introduces an ultrasensitive surface-enhanced Raman spectroscopy (SERS)-based method for detecting and precisely quantifying polystyrene (PS) plastic particles of various sizes in real-world aqueous samples. The developed SERS platform integrates urchin-like silver nanoparticles, generating high-density SERS hotspots, with a slippery polydimethylsiloxane (PDMS) brush surface for effective analyte enrichment. The synergistic combination achieves exceptional detection performance for dichloromethane (DCM)-dispersed polystyrene plastic particles across broad size ranges, demonstrating a remarkable detection limit of 2.57 × 10–5 mg/mL. The established quantitative relationship follows log I = 0.4501 log C + 4.1869 (R2 = 0.9899), confirming excellent analytical reliability. This advancement provides a robust analytical framework for environmental monitoring applications, particularly offering a novel approach for detecting microplastics (MPs) and nanoplastics (NPs) in real water samples.
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ACS Applied Materials & Interfaces
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2025
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IF 8.2
Junyi Wang,Jingbo Weng,Lu Wang,Yurong Zhou,Hailian Chen,An Xie,Wei Cheng
Amorphous tungsten oxide is widely used as an electrochromic (EC) material in smart windows but suffers from poor cycling stability due to the ion trapping effects and structural deterioration during long-term repeated ion intercalation–deintercalation. Herein, we demonstrate that the EC cycling stability of amorphous hydrated tungsten oxide films can be dramatically enhanced to 40 000 cycles without noticeable performance degradation by regulating the structural water content of films and adjusting the coloring potentials of the films in an Al3+-based electrolyte. We found that the enhancement of cycling stability can be attributed to a relatively low concentration of trapped ions and stable microstructures enabled by decreasing the coloring potential in the range from −0.2 to −0.8 V versus Ag/AgCl and increasing the content of structural water to 0.9H2O for WO3. Lower coloring potentials effectively mitigate ion trapping effects and structural damage that typically occur during the ion diffusion-controlled electrochromic process. In addition, more structural water in amorphous hydrated tungsten oxide films facilitates ion diffusion, leading to enhanced ion diffusion kinetics that can alleviate the accumulation of irreversible ions, thereby further improving the cycling stability. This work offers a simple yet effective strategy to enhance the cycling stability of amorphous phase tungsten oxide-based EC materials to a level that meets the requirement of practical application.
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ACS Sustainable Chemistry & Engineering
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2025
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IF 7.3
Haozhan Chu,Guoxiong Zhan,Kuilin Peng,Yinge Bai,Pengfei Gao,Hongyu Zhang,Zehua Wei,Xiangping Zhang,Shaojuan Zeng
Ionic liquids (ILs) show great potential for carbon dioxide (CO2) capture due to their designable structures and dual roles as absorbents and catalysts. Our previously designed IL solvent ([Cho][Triz]/TMS) showed good absorption performance but a slow regeneration rate. Here, a novel strategy to promote CO2 desorption in IL absorbents at lower temperatures using homogeneous Lewis acid IL (LAIL) catalysts was proposed. The cobalt (Co)-based LAIL [Bmim]2[CoCl4] exhibited superior performance, with the CO2 desorption amount enhanced by 54.1% and activation energy reduced by 30.3% compared with the blank test, leading to low regeneration energy consumption (0.90 GJ/t CO2), which was ascribed to a simultaneous increase in Brønsted and Lewis acid sites, promoting C–N bond cleavage by C2–H in [Bmim]22+ and Co sites in [CoCl4]2–. The environmental impact of IL-based CO2 capture processes, evaluated by the green degree method, demonstrated that the green degree production value of the IL-LAIL system is 79.6 and 673.6 gd/h higher than that of the IL and MEA systems, respectively, indicating greater environmental sustainability. This study provides a viable strategy for employing homogeneous catalysts to facilitate energy-efficient CO2 capture.
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ACS Applied Polymer Materials
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2025
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IF 4.7
Chiyuan Chen,Ziqi Zhao,Feng Liu,Hongyu Yang,Xiaming Feng,Chaojun Wan
This study addresses the flammability issue of the biodegradable polyester polylactic acid (PLA) by proposing a supramolecular flame-retardant strategy. Leveraging the critical regulatory role of aromatic topology on molecular assembly and flame-retardant performance, two supramolecular flame retardants, HEMPD and HEDAN, were synthesized through hydrogen-bonding networks utilizing hydroxyethylidene diphosphonic acid (HEDP) with m-phenylenediamine (MPD) and 1,5-diaminonaphthalene (DAN), respectively. Comparative studies within PLA composites were conducted to systematically investigate the quantitative influence of aromatic structure on gas-phase/condensed-phase flame-retardant mechanisms and thermal stability. HEMPD and HEDAN achieved a UL-94 V-0 rating at additive loadings of 4 and 2 wt %, respectively. At a 4 wt % loading, both significantly enhanced the limiting oxygen index (LOI) of PLA from 19% to 24% (HEMPD) and 24.5% (HEDAN), while reducing the peak heat release rate (PHRR) by 14.94% and 11.98%, respectively. Consequently, the flame retardancy and thermal stability of PLA were markedly improved. This work provides the first mechanistic insight into the structure–property relationship between aromatic topology and the efficacy of supramolecular flame retardants, paving the way for achieving high-efficiency flame retardancy in biobased materials.
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BIOMACROMOLECULES
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2025
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IF 5.4
Yanyao Wang,Chengcheng Zhao,Taohong He,Weipeng Zhao,Annela M. Seddon,Dave J. Adams,Honghui Yang
Abundant reversible noncovalent interactions contribute greatly to the anisotropy of supramolecular morphologies and the transformation across multiple structures. However, the trigger (group) to drive the transformation remains obscure. Herein, H-bonding between free N-terminal amines of l-tryptophan derivatives (GTCn) and DMSO, triggering a morphological transition is revealed from flat to twisted nanoribbons by tuning DMSO/H2O ratios. Corresponding dynamic macroscopic morphology evolution from an aggregated cluster to a flower-like sphere of gel is observed under an optical microscope. Combined experiments and molecular dynamics (MD) simulations establish this H-bonding as the submolecular trigger, which simultaneously induces the change of π–π stacking, from the J-type to H-type. Alkyl chains at the C-terminus modulate structural dimensions, while gel thixotropy is governed by chiral morphology. These results provide a molecular strategy for precisely triggering twisted ribbon formation in self-assembly alongside the injectable chiral gel systems visible under optical microscopy.
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ACS Applied Nano Materials
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2025
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IF 5.5
Hao Ren,Yi Cao,Tianjiao Ling,Junli Zhu,Jifang Xu,Minqi Sheng
Even though cobalt monophosphide (CoP) has been recognized as a prospective alternative to noble metal-based electrocatalysts in alkaline water splitting, further enhancement of the catalytic activity and durability of CoP in the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) requires precise manipulation of its nanoscale spatial architecture and surface electronic structure. Herein, tremella-like Pt, B-codoped CoP nanostructures were successfully anchored on carbon cloth (Pt–B–CoP/CC) through a successive process involving wet chemical deposition, surface Pt impregnation, and phosphorization. The resultant Pt–B–CoP/CC exhibits excellent catalytic activity for both HER and OER, primarily attributed to (i) high-density active sites, (ii) enhanced surface conductivity, and (iii) appropriately modulated electronic structure via Pt, B codoping. In addition, Pt–B–CoP/CC exhibits superaerophobicity, enabling the maintenance of efficient exposure of active sites during electrolysis. In an alkaline medium (1.0 M KOH), the required overpotentials are 52.53 (at −10 mA cm–2) for HER and 224.37 mV (at 10 mA cm–2) for OER, which outperform most of the reported transition metal-based bifunctional catalytic electrode materials. The constructed Pt–B–CoP/CC||Pt–B–CoP/CC cell requires an ultralow cell voltage of 1.51 V (1.74 V) to drive a current density of 10 mA cm–2 (100 mA cm–2). After 100 h of continuous electrolysis, the cell voltage increment is almost negligible at 10 mA cm–2, while at 100 mA cm–2 it increases by only 1.97%, demonstrating the tremendous durability of Pt–B–CoP/CC and its potential applicability in industrial-grade electrolyzers. This study provides inspiration for designing and synthesizing advanced multifunctional catalytic electrodes with high efficiency and long-term stability.
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LANGMUIR
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2025
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IF 3.9
Xinyuan Xu,Jianyang Lu,Jishuai Wang,Kun Wang,Peng Miao
Hydrogen-bonded organic frameworks (HOFs) are emerging porous materials. Herein, we prepare HOFs (PFC-1) and develop a facile pH-responsive fluorescent system, since they contain organic ligands with acid–base sensitive groups (H4TBAPy). Upon the addition of alkali, the carboxyl groups undergo deprotonation, and intramolecular charge transfer (ICT) is inhibited, which induces hydrogen bond reconstruction, widens the band gap, and enhances the restricted intramolecular motion (RIM) effect. These changes result in blue shift and significant enhancement of fluorescence emission. We also employ HOFs as excellent pH indicators to analyze histamine and protamine concentrations. The fluorescent system is further applied to monitor food spoilage, since PFC-1 materials exhibit a distinct fluorescent color change upon the generation of biogenic amines. This study thus provides a promising example for designing pH-responsive HOFs, laying a solid foundation for their further applications in food safety, environmental monitoring, and biomedical sensing fields.
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ACS Applied Materials & Interfaces
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2025
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IF 8.2
Shuang Wei,Sheng Zhong,Chao Bao,Linbo Huang,Kexin Li,Ruirui Wang,Bin He,Ruirui Zhang,Ruixia Liu
The selective electrocatalytic oxidation of glycerol to high-value C2–C3 chemicals offers a promising approach to glycerol overproduction, while it struggles with precise C–C cleavage and limited selectivity from multiple pathways. Regulating the adsorption capacity of glycerol oxidation intermediates and the degree of C–C bond cleavage through the interfacial electronic structure of electrocatalysts is crucial for controlling C2–C3 selectivity. Herein, a self-supported p-n heterojunction catalyst (Co3O4/CeO2) is developed for the efficient electrocatalytic oxidation of glycerol to C2 chemicals, achieving a glycolic acid selectivity of 42%, with a yield of 19.6 μmol cm–2 h–1. The built-in electric field enables rapid interfacial charge transfer from CeO2 to Co3O4, which leads to the upshifted d-band center of active Co3O4. Electrochemical characterization and theoretical calculations demonstrate that the heterojunction promotes the adsorption of hydroxyl species and glycerol, thereby enhancing the activity of the glycerol oxidation reaction (GOR). Concurrently, the optimized electron cloud distribution of Co3O4 active sites strengthens the adsorption of oxygen-containing intermediates while weakening the adsorption of glycolic acid and suppresses the further cleavage of C–C bonds, thus increasing glycolic acid selectivity. This study clarifies the redox kinetic adsorption regulation mechanism of the Co3O4/CeO2 heterojunction catalyst and provides a highly promising electrocatalyst design strategy for the production of high-value-added C2 products via glycerol oxidation.
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ACS Applied Energy Materials
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2025
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IF 5.5
Qiang Li,Chuang Shi,Zhiguang Zhang,Hong Sun,Tian Zhang,Jie Li,Zhichao Xue,Tianyu Zhang,Mingfu Yu,Haotian Chen,Peng Zhou
Li–O2 batteries have attracted great attention due to their extremely high theoretical energy density. However, they suffer from a short cycle life and low capacity in practical applications. These problems stem from the inability to fully decompose the Li2O2 generated during the discharge process. In this study, NiFe2O4 catalysts with two different morphologies, octahedral and microflowers, were prepared by a simple hydrothermal method. The effects of NiFe2O4 cathodes with different morphologies on the performance of Li–O2 batteries were investigated. Theoretical calculations reveal that the overpotentials of the oxygen reduction reaction and oxygen evolution reaction of the battery with NiFe2O4 are 0.52 and 0.65 V, respectively. The results show that the octahedral Super-P/NiFe2O4 cathode exhibits high catalytic activity and shows a large specific surface area and a reasonable pore structure, resulting in the reduction in charge/discharge potential difference. The battery equipped with an octahedral Super-P/NiFe2O4 cathode exhibits the best cycle life of 125 cycles at a current density of 500 mA·g–1 and presents the highest discharge capacity of 9427 mAh·g–1 at a current density of 100 mA·g–1.
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JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
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2025
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IF 6.2
Jingjing Wang,Pingping Qu,Fuhan Wang,Man Qian,Ziyi Li,Mengyao Guo,Xuejiao Gao
Zearalenone is an estrogen-like mycotoxin produced by Fusarium fungi. Growing evidence shows that ZEA causes multisystem damage via oxidative stress. Glycyrrhizic acid (GA), from Glycyrrhiza glabra, has anti-inflammatory/antioxidant properties. The mechanisms of GA and ZEA in chicken pulmonary oxidative stress and inflammation remain elusive. Therefore, we established zearalenone-exposed chicken lung and CP-II cells models. ZEA exposure triggers an inflammatory cascade via the ROS-NF-κB axis, activating NLRP3 inflammasomes and promoting the release of proinflammatory factors. It also increased the apoptosis-related factors and fibrosis-related factors. GA treatment reduced oxidative stress, inflammation, and apoptosis, while suppressing fibrosis. This study reveals that GA reverses lung tissue injury by suppressing oxidative stress, inflammation, and the apoptosis-necrosis network through regulating the NF-κB/NLRP3 signaling axis by scavenging ZEA-induced reactive oxygen species (ROS). These results elucidate the antioxidant mechanism of GA and provide insights into the toxicology of ZEA.
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ACS Applied Polymer Materials
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2025
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IF 4.7
Shuai Wang,Fazhan Ren,Lili Ren,Nan Wu,Qiancheng He,Wei Song
Conductive hydrogels have been increasingly designed as wearable strain sensors due to their significant potential in human motion monitoring and health detection applications. However, the integration of multiple desirable characteristics within a single hydrogel system remains challenging. Furthermore, environmental factors such as humidity and low temperatures often compromise hydrogel sensor functionality, substantially limiting their practical applications and value. In this study, we developed a mussel-inspired multifunctional CACa conductive hydrogel through in situ polymerization by incorporating polyacrylamide (PAM), tannic acid (TA), carboxymethyl cellulose (CMC), and aminated carbon nanotubes (NH2–CNTs) into a unified gel network. By optimizing the CMC mass fraction and subsequent cross-linking via calcium chloride (CaCl2) solution immersion, the resulting hydrogel demonstrates exceptional stretchability, self-adhesion, moisturizing/antifreezing capabilities, conductivity, and underwater adhesion. As a self-adhesive wearable strain sensor, CACa hydrogel can directly adhere to human skin without external assistance. It exhibits high sensitivity and rapid response to various physiological signals, including finger flexion, wrist rotation, elbow movement, and throat vibration during speech. Remarkably, this flexible electronic material maintains functionality even under subzero temperatures and aqueous environments. The hydrogel’s underwater adhesion enables effective motion signal detection and information transmission in submerged conditions. This work provides insights for developing advanced wearable sensors and underwater monitoring devices, significantly expanding the potential applications of multifunctional conductive hydrogels.
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