INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2021
·
IF 6.953
Yueqin Li,Xiaohui Liu,Qiang Gong,Zongbiao Xia,Yong Yang,Chen Chen,Changhao Qian
A series of multifunctional conductive hydrogels (denoted as SA-B-DAPPy) is developed by combining sodium alginate (SA) and dopamine functionalized polypyrrole (DAPPy) nanofibers with borax as a cross-linking agent. By modulation of the DAPPy weight ratio to 3.5 wt%, the conductivity of the hydrogel can reach a high value of 1.33 ± 0.012 S/m. Both borate interactions and hydrogen bonds within hydrogel frameworks can account for the satisfactory stretchability (more than 800%) and instantaneous self-healing ability. More significantly, the SA-B-DAPPy hydorgels can be easily fabricated as electrode component in the symmetric supercapacitor with SA-B-DAPPy//SA-B//SA-B-DAPPy configuration. Due to the self-healing of the electrode/electrolyte interface, the obtained all-in-one device can deliver superior areal specific capacitance of 587 mF/cm 2 at current density of 1.0 mA/cm 2 , high energy density of 52.18 μWh/cm 2 at power density of 800 μW/cm 2 , good capacitance retention of 80% after 2000 cycles, as well as integration characteristics. Furthermore, on account of high conductivity, a thin SA-B-DAPPy hydrogel film can be fabricated into the motion sensor to detect and distinguish various human movements. The sensor exhibits high gauge factor (GF) up to 10.23, and stable, repeatable response signals, which permit supersensitive for monitoring large-scale joints motions and subtle muscle movements.
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高影响因子
FOOD HYDROCOLLOIDS
·
2024
·
IF 11
Zitian Liu,Qingrun Liu,Ligang Lin,Qiying Wang,Wensong Ma,Qi Cheng,Jing Yang,Fengling Tang,Meina Xu,Xu Yang,Huiyang Shang,Hao Wu
Insufficient mechanical, barrier and water resistance properties of guar gum (GG) films limit their application in food packaging field. Herein, the properties of GG films were enhanced by a stepwise modification strategy. The mechanical and water vapor barrier properties of GG films were initially reinforced by doping with a different type of polysaccharide (sodium alginate; SA). Next, carboxylated cellulose nanofibers (CCN) were introduced as a reinforcing agent to improve film properties via two methods (blending and layer-by-layer (LBL) assembly method). Finally, the water resistance of composite films was further enhanced by calcium ion cross-linking treatment. GG/SA composite films exhibited better mechanical strength and water vapor barrier capacity compared to pristine GG film. In addition, the introduction of CCN, either by blending or LBL method, improved the light barrier, water vapor barrier and tensile strength . The calcium ion cross-linking treatment further enhanced the water vapor barrier, thermal stability, tensile strength and water resistance capacity. The potential applications of GG/SA/CCN films in real food packaging were also explored. In short, this study presents a simple and feasible performance enhancement strategy for GG and other underperforming polysaccharide matrix films, with potential applications in the development of high-performance bio-based food packaging materials .
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2026
·
IF 8.7
Bihua Xia,Runyi Qu,Jin Xu,Yang Wang,Ting Li,Mingqing Chen,Shibo Wang,Weifu Dong
This study reports on the development of an innovative Chlorogenic acid-allicin-porphyrin-CMCS/SA composite film designed for fruit preservation through coating applications. Chlorogenic acid (CA) and allicin were polymerized via precipitation to synthesize CAA nanoparticles, which then adsorbed cationic porphyrin through charge interaction mechanisms to form chlorogenic acid-allicin-porphyrin (CAAT) composite nanoparticles. This antimicrobial component exhibits significant photosensitivity. These nanoparticles were incorporated into a film matrix composed of carboxymethyl chitosan and sodium alginate (CMCS/SA). The CAAT-CMCS/SA composite film was fabricated using a solution-blending technique, integrating the photosensitive antibacterial agent uniformly within the polymeric network. A comprehensive investigation was conducted to characterize the structural properties of the CAAT nanoparticles and their capacity to generate reactive oxygen species (ROS) under visible light irradiation. The functional attributes of the composite film—including ultraviolet (UV) shielding efficiency, water solubility, antimicrobial performance, biocompatibility, and efficacy in fruit preservation—were systematically evaluated. Experimental findings confirmed that the CAAT-CMCS/SA composite film possesses strong UV-blocking capability (>80%), high transparency (>85%), facile washability (4 min), significant antibacterial activity (100%), and effective fruit preservation performance. These results underscore the potential of this composite film as a promising material for advanced food preservation packaging.
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PubMed
高影响因子
LANGMUIR
·
2026
·
IF 4.4
Sheng He,Guoliang Chen,Kaixin Liu,Zhicheng Xie,Zhang Chen,Zhixian Li,Jianlin Zhou
The difficulty in recovering powdered biochar and its limited adsorption capacity are the main obstacles restricting the application of agricultural waste in cadmium (Cd2+) adsorption. To address these issues, magnesium-modified biochar (MBC)/alginate sodium (SA) aerogel beads were prepared through in situ cross-linking-gelation and freeze-drying techniques for the removal of Cd2+ from wastewater. The MBC/SA composite aerogel beads with excellent performance can be easily separated from the aqueous solution, avoiding the secondary pollution and equipment blockage caused by powdered adsorbents. The adsorption capacity of MBC/SA aerogel beads for Cd2+ under different conditions was analyzed and optimized. Additionally, the maximum adsorption capacity of Cd2+ by MBC/SA aerogel beads reached 289.6618 mg·g–1, which fitted well with the Langmuir isothermal model (R2 = 0.9911). Moreover, it was found that the adsorption process of Cd2+ on MBC/SA aerogel beads was spontaneous and endothermic, following pseudo-second-order kinetics (R2 = 0.9935). Furthermore, even after 7 repeatable usage cycles, the adsorption efficiency of MBC/SA aerogel beads remained around 29.3%. This work proposes a simple and scalable manufacturing strategy to convert agricultural waste into an efficient adsorbent for wastewater treatment, adhering to the principle of sustainable development.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Luzi Yuan,Qingliang Zhao,Ruiyuan Xue,Liangliang Wei,Guangzhi Wang,Jing Ding,Junqiu Jiang,Kun Wang
Groundwater contaminated with toxic metals and petroleum hydrocarbons presents long-term risks due to the different transport and removal mechanisms of these contaminants. Co-occurrence of hexavalent chromium (Cr(VI)) and benzene (C 6 H 6 ) is particularly challenging, requiring combined redox transformation and hydrophobic adsorption for effective remediation. In this study, a porous and mechanically robust permeable reactive barrier (PRB) material, composed of sodium alginate, nanoscale zero-valent iron, and activated carbon (SA–nZVI–AC) was synthesized using a combined sol–gel and freeze-drying method. Unlike conventional nZVI systems that primarily focus on metal reduction, this composite integrates polymer stabilization, carbon adsorption, and iron-mediated redox for simultaneous removal of mixed metal–organic pollutants. Freeze-drying proved to be a key processing step, improving structural integrity, anti-clogging capacity, and thus long-term applicability of nZVI-based PRBs. Material characterization revealed a mesoporous framework, stabilized iron phases, and abundant oxygen-containing functional groups. Batch experiments demonstrated efficient simultaneous removal of Cr(VI) and C 6 H 6 , with adsorption kinetics following pseudo-second-order models ( k 2 values for total Cr and C 6 H 6 were 0.50 and 0.06 g mg −1 min −1 , respectively) and isotherms fitting the Langmuir model. Removal efficiencies exceeded 95.28% for Cr(VI) and 85.11% for C 6 H 6 at pH 7–9 and remained high (>78.15% and > 91.31%, respectively) under interfering ions. Column experiments confirmed sustained contaminant attenuation with breakthrough delayed to approximately 60 days. Cr(VI) was immobilized within the barrier through coupled adsorption and reduction, while C 6 H 6 was effectively retained via physical adsorption within the PRB matrix. Post-column microbial analyses suggested secondary biochemical interactions within the PRB. These results demonstrate that freeze-dried SA–nZVI–AC functions as a coupled adsorption–reduction–immobilization system, showing strong potential for long-term PRB applications in remediating groundwater co-contaminated with metals and organic compounds.
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FOOD RESEARCH INTERNATIONAL
·
2026
·
IF 8.8
Zhe Liu,Qingyan Pan,Xifeng Zuo,Xuetuan Wei,Ailing Guo
Recombinant protein enabled active preparation of novel peptide hz-01. • Quercetin was first introduced into SA/κ-Car microspheres for peptide loading. • Quercetin enhanced peptide encapsulation, gastric protection, and intestinal controlled release. To address the poor stability and high susceptibility to degradation of antimicrobial peptides, a pH-responsive hydrogel microsphere system was developed based on sodium alginate (SA) and κ-carrageenan (Car), with quercetin (Que) for intestinal delivery of chemically synthesized free hz-01 peptide. The optimized formulation containing 0.45% Car exhibited the highest encapsulation efficiency (77%), corresponding to an absolute increase of 13 percentage points compared with the system without Que. The microspheres remained stable under simulated gastric conditions but enabled controlled intestinal release, with release kinetics fitting the Korsmeyer-Peppas model (R 2 = 0.995), while significantly preserving antimicrobial activity during digestion. Molecular dynamics simulations suggested that hydrogen bonding, electrostatic interactions, and weak hydrophobic associations may contribute to the local stabilization of hz-01 within the SA/Car/Que. matrix. This work provides a food-grade polyphenol-assisted encapsulation strategy in which Que. functions as an auxiliary structural mediator to improve peptide encapsulation, gastric protection, and intestinal-stage release. Download: Download high-res image (322KB) Download: Download full-size image
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Foods
·
2026
·Vol. 15
·期 13
·2327
·
IF 6
Siyi Bao,Jinle Ma,Jianan Liu,Hongman Hou,Jingran Bi,Xufen Xie,Hongshun Hao,Gongliang Zhang
In this study, two antimicrobial food packaging films were prepared by using gelatin/sodium alginate (GSA) as the film substrate and introducing benzyl isothiocyanate (BITC) and eugenol (EUG), respectively. The incorporation of BITC and EUG increased the tensile strength of the GSA film by 66.7% and 32.2%, respectively, while reducing the elongation at break by 44.9% and 39.8%, respectively. The water contact angle increased by 50.4% and 14.9%, and the water vapor permeability decreased by 65.4% and 59.2%, respectively, indicating that the addition of BITC and EUG improved the water resistance of the GSA film. In addition, the incorporation of BITC and EUG reduced the light transmittance of the GSA film. Scanning electron microscopy revealed that the surface inhomogeneity of the GSA film improved after the addition of BITC and EUG. Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and thermogravimetric analysis (TGA) indicated that BITC and EUG interacted with the GSA matrix and affected the structural and thermal characteristics of the composite films. Application tests on cherries and beef have shown that BITC-GSA and EUG-GSA films delayed quality deterioration during storage. Overall, these films show promising potential as biodegradable active packaging materials for food preservation. These two films were applied to cherries and beef, effectively extending their shelf life and demonstrating the potential of these films as food packaging materials.
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高影响因子
FOOD RESEARCH INTERNATIONAL
·
2025
·
IF 8
Lijia Li,Xumei Feng,Yiting Gao,Fei Teng,Yang Li
Maillard conjugates of proteins and polysaccharides show excellent potential for gelation in W/O/W systems. Meanwhile, co-gelation strategies of the oil and external aqueous phases have received sustained attention in the study of W/O/W systems. This study investigated the physicochemical properties of soy lipophilic protein‑sodium alginate maillard conjugates (LP@SA) and its application with beeswax (BW) in the construction of gel-like W/O/W systems (G-W/O/W). pH 11-treated LP exhibited enhanced glycosylation sites, achieving a grafting degree of 55.36 % and a browning value of 0.84. SA improved LP's interfacial properties, including reduced particle size, increased zeta potential (−38.5 mV), and superior interfacial protein adsorption (84.08 % AP). Molecular dynamics simulations revealed that LP@SA and BW exhibited high solubility and diffusivity in aqueous and oil phases, respectively. Meanwhile, under optimized conditions (5 % BW and 1:1 LP/SA ratio), G-W/O/W exhibited optimal viscoelasticity and pH/thermal responsiveness, maintaining structural integrity under environmental fluctuations. Furthermore, In vitro release revealed sustained release in simulated intestinal fluid, with free fatty acid levels being controlled by BW. These findings highlight the co-gelation potential of LP@SA and BW and provide a technical basis for the development of novel W/O/W systems.
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高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 3
·122692
·
IF 7.5
Huanggen Yang,Shulun Yin,Pei Zhang,Qi Zheng,Faisal Alresheedi,Imran Shakir,Saleem Raza,Duofu Li,Yan Sui
The energy crisis calls for eco-friendly alternatives, and hydrogen production presents a viable solution. As a clean energy source, hydrogen can be produced from water using renewable power, decreasing dependence on fossil fuels and substantially cutting greenhouse gas emissions paving the way for a greener future. This work involves the fabrication of Ti 3 C 2 T x and NH 2 -MIL-125(Ti) by hydrothermal procedures. Ti 3 C 2 T x material served as the substrate for the immobilization of NH 2 -MIL-125(Ti), which were then incorporated into sodium alginate to generate (Ti 3 C 2 T x @NH 2 -MIL-125(Ti)-SA). The electrocatalytic efficacy of Ti 3 C 2 T x @NH 2 -MIL-125(Ti)-SA was evaluated for the hydrogen evolution reaction (HER) under alkaline factors using a 1 M KOH electrolyte. The material demonstrated exceptional capacitance, impressive rate capability, and sustained stability during 1000 cycles over a 24 and 48 h. The Ti₃C₂Tₓ@NH₂-MIL-125(Ti)-SA composite exhibits excellent HER catalytic activity in alkaline media, delivering a low overpotential of 14 mV at 10 mA cm⁻² and a Tafel slope of 56.4 mV dec⁻¹ . Although the benchmark Pt/C catalyst shows slightly superior performance (12 mV, 41.1 mV dec⁻¹), the developed composite demonstrates comparable activity, along with advantages of structural stability and cost-effectiveness compared to noble metal-based catalysts. Overall, Ti 3 C 2 T x @NH 2 -MIL-125(Ti)-SA demonstrates excellent electrode performance in alkaline conditions, as compared with pristine Ti 3 C 2 T x and NH 2 -MIL-125(Ti), which marked by remarkable stability, low Tafel slope values, and minimized overpotentials, underscoring its significant promise for efficient water splitting applications.
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高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
·
2023
·
IF 3.3
Heng Zhao,Junhua Sun,Yanjie Du,Miaomiao Zhang,Zhen Yang,Jianhui Su,Xiujing Peng,Xiaolei Liu,Guoxin Sun,Yu Cui
Lead is a toxic heavy metal that is highly harmful to humans. Developing fast, efficient, and separable materials to treat lead-contaminated wastewater is challenging. In this paper, Cu-based MOF composite (SCC-CuMOF) was prepared by in-situ growth method and used for the removal of Pb 2+ from aqueous solutions. The obtained materials were characterized by field emission scanning electron microscope (FESEM), energy dispersive spectroscopy (EDS) mapping, Brunauer-Emmett-Teller (BET) specific surface area, X-ray diffraction (XRD) and infrared spectroscopy (IR). The effects of pH, coexisting ions, contact time, initial ion concentration, and temperature on the removal of Pb 2+ were investigated. SCC-CuMOF exhibited excellent adsorption performance on Pb 2+ . Adsorption of Pb 2+ on SCC-CuMOF were in accordance with the pseudo-second-order model and Langmuir model. The adsorption thermodynamic study suggested that the adsorption process was spontaneous and endothermic. The results revealed that Pb 2+ might be adsorbed onto SCC-CuMOF via ion exchange and coordination interaction. In general, SCC-CuMOF has the potential to remove Pb 2+ from wastewater rapidly and efficiently.
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高影响因子
FOOD HYDROCOLLOIDS
·
2022
·
IF 11.504
Yihui Wang,Aiquan Jiao,Chao Qiu,Qing Liu,Yueyue Yang,Shichao Bian,Fangye Zeng,Zhengyu Jin
While pea protein (PeaP) is considered to be the plant protein with the most potential for use in plant-based meat products, it is limited by poor gel performance. To overcome this issue, a one-pot method was adopted to prepare a double-network (DN) hydrogel based on a transglutaminase-induced cross-linked network of PeaP and a physically cross-linked network of sodium alginate (SA). As SA concentration increased, the layered structure inside the hydrogel first converted into a porous honeycomb-like structure before forming a dense 3D network structure. Mechanical testing results suggested that the Young's Modulus of hydrogel increased from 2.1 MPa to 8.6 MPa at 80% strain as SA increased from 0% to 0.25%. This dense DN structure endowed the hydrogel with great fatigue resistance as well as excellent textural properties. Low-field nuclear magnetic resonance suggested that the DN hydrogel had a higher binding water content than PeaP single-network hydrogel, and showed good freeze-thaw stability. It is believed that this present work can give some insight into existing PeaP gel systems and inspire the development of more PeaP-based DN hydrogel with desired mechanical strength and freeze-thaw stability.
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高影响因子
CARBOHYDRATE POLYMERS
·
2023
·
IF 11.2
Zhicheng Chen,Puxin Weng,Yiheng Song,Long Zheng,Yeqiang Tan,Xianze Yin
Solar-driven viscosity reduction of highly viscous crude oil has emerged as an environmentally friendly method to address large-scale oil spills. However, the challenge lies in the limited availability of sunlight during cloudy days and at night, which hinders the effectiveness of green advanced porous materials. This study developed all-weather-available advanced porous materials in the form of loofah-like structured porous frame composed of 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane/MXene/carbon nanotubes (CNTs)/sodium alginate (SA)/carboxymethyl cellulose sodium (NaCMC). MXene and CNTs formed a continuous and stable network that enabled PMCSCPs to rapidly reduce crude oil viscosity for all-day based on photothermal and electrothermal conversions. Additionally, loofah-like porous structure and oriented pipeline biomass skeleton endowed PMCSCPs with stable and rapid adsorption capacity and speed. Considering the complexity of the external environment and oily wastewater composition , we verified the separation performance of PMCSCPs for metal ions and dyes and the ice-breaking ability under icy conditions. PMCSCPs provided a novel approach to achieving clean, high-efficiency, all-day remediation of ultra-viscous crude oil. This “Three birds with one stone” approach is expected to be obtained from nature and used on a large scale, replacing conventional porous adsorbent materials.
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高影响因子
危险品化学品经营许可证（带存储）