FOOD CHEMISTRY
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2026
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IF 10.4
Liping Ding,Tiandi Ling,Side Huang,Yu Zhang,Chunhong Xiong,Ganhui Huang,Jinsheng Zhang
Fabricated SA/KGM/DMY edible films via hydrogen-bond-mediated supramolecular assembly. • Optimized 8% DMY loading for balanced mechanical, barrier and bioactive properties. • Achieved simultaneous browning inhibition and microbial suppression in fresh-cut apples. Food packaging is crucial for freshness preservation, with edible films gaining widespread attention. This study prepared sodium alginate (SA)/konjac glucomannan (KGM) composite films containing dihydromyricetin (DMY), with 8% DMY as optimal. Fourier transform infrared (FT-IR) spectroscopy, molecular docking, and isothermal titration calorimetry (ITC) confirmed hydrogen bonding, stabilizing DMY. The film exhibited potent antioxidant activity (88.9% DPPH scavenging), antimicrobial efficacy against both Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus (92.05% and 95.20% inhibition, respectively; log₁₀ reduction >2.50 at 12% DMY loading). Fresh-cut apple trials showed it delayed quality loss, inhibited browning (lower PPO activity), and suppressed microbial proliferation (3.97 log CFU/g vs. 5.28 log CFU/g control). The key innovations are: (i) elucidating DMY stabilization in a polysaccharide matrix via hydrogen bonding through docking and ITC; (ii) integrating antioxidant, antimicrobial, and barrier functions in a single edible film; and (iii) demonstrating dual efficacy against enzymatic browning and microbial spoilage in fresh-cut produce. Download: Download high-res image (247KB) Download: Download full-size image
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高影响因子
Journal of Energy Storage
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2025
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IF 9.8
Chongjun Zhao,Yingying Rong,Tenghui Huang,Yanyu Guo,Puqi Geng,Chunhua Zhao
Biomass-derived carbon has been widely used as active material in supercapacitor. However, two or more kinds of biomass-derived carbon composite is still not distinctly aware and seldom used. In this work, the carbon composite is brought forward by taking corn stalk (CS) and sodium alginate (SA) as source examples, which owns hierarchical porous structure and thus a higher specific surface area (SSA) (2658.97 m 2 g −1 ) and specific pore volumes (0.98 cm 3 g −1 ) than those single component carbon from pure CSC (1698.67 m 2 g −1 ) or SAC (2564.06 m 2 g −1 ). The optimized carbon composite of CSSAC-5 exhibits a high specific capacitance of 435 F g −1 at the current density of 0.5 A g −1 and a high retention up to 97.8 % after 10,000 repeated charge-discharge cycles. Moreover, symmetric supercapacitor (SSC) of CSSAC-5//CSSAC-5 delivers an energy density of 18.96 Wh kg −1 at 250 W kg −1 and 14.58 Wh kg −1 at 5000 W kg −1 , as well as a retention of 83.7 % after 10,000 cycles. The strategy of carbon composite will efficiently expand the carbon sources of active materials and push the exploitation of the high performance supercapacitor.
研究领域:
材料科学
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能源技术
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高影响因子
ACS Biomaterials Science & Engineering
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2025
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IF 5.5
Yaru Han,Chuanwen Wang,Meitong Liu,Baojin Ma,Shaohua Ge,Yang Yu
Postextraction wound healing under inflammatory conditions remains a crucial clinical challenge due to persistent oxidative stress and compromised bone regeneration. To address this critical issue, injectable hydrogel dressings offer a promising strategy for inflammatory wound healing after tooth extraction. Herein, we developed an epigallocatechin gallate (EGCG)-loaded sodium alginate/zinc ion (SA/Zn2+) composite hydrogel (designated SZE) through ionic cross-linking and multiple physical bonding interactions. The SZE hydrogel with high cytocompatibility could effectively scavenge intracellular ROS, protect mitochondria, inhibit the expression of inflammatory factors, and modulate macrophage polarization, as well as enhance the osteogenic differentiative potential of bone marrow mesenchymal stem cells. Meanwhile, the SZE hydrogel demonstrated good bactericidal effects against Staphylococcus aureus and Escherichia coli. Based on in vivo rat extraction socket models with/without S. aureus infection, SZE accelerated socket healing by eliminating infection, alleviating oxidative stress, inhibiting excessive inflammation, and promoting bone regeneration and effectively augmented infected socket healing. Overall, our research indicates that the developed SZE hydrogel offers a promising strategy for achieving accelerated and ideal healing of extraction sockets, especially under bacteria-infected inflammatory conditions.
研究领域:
生物材料
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牙科材料
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组织工程
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伤口愈合
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再生医学
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DOI
PubMed
高影响因子
Journal of Chemistry
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2020
·Vol. 2020
·期 1
·5496712
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IF 1.79
Yingying Zhao,Linchuan Zhan,Zhongjun Xue,Kianpoor Kalkhajeh Yusef,Hongxiang Hu,Mengjun Wu
Natural macromolecule adsorbing materials are alternatives for remediation of heavy metals’ polluted waters. In this study, sodium alginate composite gel (SACL) was synthesized from sodium alginate (SA), polyethylene glycol oxide (PEO), and nanomaterials to remove wastewater Cu (II) and Cd (II). The adsorption efficiency of SACL was analysed in relation to the contact time, initial concentrations of metal ions, temperature, adsorbent dosage, and solution pH. Three models, i.e., kinetic model, isothermal adsorption model, and thermodynamic model, were used to fit the experimental data. Our results showed that the highest removal rates of Cu (II) and Cd (II) from wastewater were 96.8% and 78%, respectively, under the condition of the best liquid-solid ratio of 12.5 ml·g −1 , and the contact time of 180 min (25°C). Overall, the SACL adsorption of Cu (II) and Cd (II) was spontaneous. The adsorption kinetics and the isothermal adsorption were fitted well with the pseudo-second-order kinetic equation and Langmuir equation, respectively. Combined with SEM-EDS and FTIR analysis, results suggested that SACL adsorbs wastewater Cu (II) and Cd (II) mainly through chemical reaction on its surface area. Altogether, this work concludes on SACL as an efficient and ecofriendly adsorbent for wastewater Cu (II) and Cd (II).
研究领域:
环境科学
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材料科学
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DOI
高影响因子
CARBOHYDRATE POLYMERS
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2018
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IF 5.158
Yiying Yue,Xianhui Wang,Jingquan Han,Lei Yu,Jianqiang Chen,Qinglin Wu,Jianchun Jiang
In this study, interpenetrating polymer network (IPN)-structured hydrogels were fabricated through the crosslinking of neutral polyacrylamide (PAM, the first flexible network) and the polyelectrolyte sodium alginate (SA, the second rigid network). Three types of nanocellulose, including cellulose nanocrystals (CNCs), bacterial cellulose fibers (BCs) and 2,2,6,6-tetramethylpiperidine-1-oxy radical (TEMPO)-oxidized cellulose nanofibers (TOCNs), were well-dispersed in the SA-PAM gel matrix. The hydrogels, obtained with a high water content (∼83%), exhibit a macroporous structure with a mean pore size of 60 ± 51 μm and high transparency. Comparative studies indicate that BCs are more effective for enhancing the hydrogels due to their higher aspect ratio, and the compressive strength of SA-PAM-BC hydrogel is 6.59 times higher than that of neat SA-PAM. Meanwhile, TOCNs are the best fillers for improving the adsorption capacity owing to the presence of a carboxyl group, and the adsorption capacity of SA-PAM-TOCN is more than 1.3-fold that in SA-PAM. Prepared hydrogels with high mechanical strength and adsorption capacity are advantageous for their applications in wastewater treatments.
研究领域:
材料科学
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高分子科学
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环境工程
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纳米复合材料
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水处理
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高影响因子
REACTIVE & FUNCTIONAL POLYMERS
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2026
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IF 5.1
Xiyuan Guo,Yuanfeng Pan,Yuanjian Xie,Pingxiong Cai
Pesticides are essential for agricultural production; however, their improper application can result in ecological damage and potential threats to human health. Therefore, the development of pesticide-controlled-release systems is crucial for the sustainable progress of agriculture and society. This work presents a novel strategy for fabricating a polyelectrolyte hydrogel bead-based pesticide-controlled-release system. The process involves blending a sodium alginate/carboxymethyl chitosan (SA/CMCS) solution with cystine dihydrochloride (CYS), followed by introducing the mixture into a citric acid (CA) solution. The abundant protonated amino groups (-NH 3+ ) and carboxylate anions (-COO-) within the system facilitate the formation of CMCS/SA-CYS/CA composite hydrogel beads (CHGB), subsequently loaded with thiamethoxam (TMX) to create TMX-loaded CHGB (TCHGB) for investigations into drug loading and responsive release. The CHGB exhibits remarkable swelling properties (up to 4200%), along with pH and redox sensitivity. And the release of TMX from TCHGB displays favorable responsiveness to pH and redox stimuli. Under alkaline conditions (pH 9.0) and reductive surroundings (containing glutathione), the cumulative release ratio of TMX surpasses 95%. Furthermore, it has been demonstrated that the release kinetics of TMX comply with Fickian diffusion described by the Korsmeyer-Peppas model. The discoveries of this study hold considerable research and practical value in the domain of controlled-release agricultural chemicals.
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高影响因子
Desalination and Water Treatment
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2024
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IF 1
Jin-ni Wu,Wenkui Mu,Wen-bin Li,Hong-yan Deng,Tianjiang Jin,Touqeer Abbas,Yu-ting Song,Jia-peng Pan,Bixia Wang
The antibiotic adsorbability and economic performance of modified semi-carbonized fiber (SF) were investigated by using 100% chitosan (CS) to modify SF (prepared by cotton) for preparing CS-modified SF (CS-SF). Then, different ratios (0%, 10%, 20%, 50%, 100%, and 200%) of sodium alginate (SA) were used to modify 100CS-SF for preparing SA and CS-modified SF (SA/CS-SF). Batch method was used to investigate the adsorption characteristic of chlortetracycline (CTC), tetracycline (TC), and oxytetracycline (OTC) on different SA/CS-SFs. The effects of temperature, pH, and ionic strength on antibiotic adsorption were compared, and the economic performance of different SA/CS-SFs was analyzed. Results showed that (1) the Langmuir model is suitable for describing the adsorption process of antibiotics by different SA/CS-SFs. The maximum adsorption amount ( q m ) of different SA/CS-SFs for CTC, TC, and OTC were 11.17–36.36, 6.14–26.11, and 9.90–32.87 mmol/kg, respectively, ranking in the order of CTC > OTC > TC. (2) The adsorption antibiotics by different SA/CS-SFs conformed to the pseudo-first-order kinetics equation. Antibiotic adsorption on different SA/CS-SFs increased with the increase in temperature, and the adsorption was a spontaneous, endothermic, and entropy-increasing process. (3) In the pH range of 3–9 and ionic strength range of 0.01–0.2 mol/L, the adsorption amount of antibiotics on different SA/CS-SFs all increased first and then decreased with increasing pH and ionic strength, reaching the maximum value at pH = 5 and ionic strength of 0.1 mol/L, respectively. (4) The economy ( q m /price) of different SA/CS-SFs for antibiotic adsorption ranged from 7.18 to 22.91 mg/¥, and 100SA/CS-SF showed the highest economy. Compared with biochar and modified biochar, 100SA/CS-SF had higher economy in antibiotic adsorption.
研究领域:
环境科学
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材料科学
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吸附技术
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水处理
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化学工程
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DOI
高影响因子
Journal of Macromolecular Science Part B-Physics
·
2022
·
IF 1.366
Mengxiang Zeng,Wei Wu,Jianjun Fang,Zhihua Zhou,Ying Lan,Bingrong Lin,Qian Ye
The adsorption method is recognized as an effective technology for dealing with water pollution caused by heavy metal ions. For a highly efficient, eco-friendly and low-cost adsorption process, the adsorbent is the deciding factor. In this study a porous sodium alginate scaffold was prepared by the method of freeze-drying as a heavy metal ion adsorbent. The parameters affecting the morphology and adsorption characteristics of the scaffolds were investigated. The results showed that sodium alginate porous scaffolds could be prepared under the concentration in the range of 1–5%. After calcium ion pre-crosslinking, the sodium alginate scaffold was used to adsorb the heavy metal ions of Cd2+, Pb2+, and Cu2+ from aqueous solution and the maximum adsorption efficiency under optimized adsorption conditions were 99.43%, 73.67%, and 59.25%, respectively. At the same time, the scaffold could be used for desorption and recycling. After five cycles, the removal percentages of Pb2+, Cd2+, and Cu2+ by the sodium alginate scaffold decreased by 25%, 25%, and 16%, respectively.
研究领域:
环境科学
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材料科学
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水处理
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吸附技术
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DOI
高影响因子
Journal of Macromolecular Science Part B-Physics
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2017
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IF 0.828
Huabo Huang,Junlong Yao,Yulan Liu,Xin Tuo,Yumin Da,Xiaoping Zeng,Liang Li
Due to their possible ideal three dimensional (3D) nanostructures and excellent electrochemical properties, conducting hydrogels have attracted much attention in recent years. Herein, pyrrole monomer was directly dissolved in an aqueous solution of sodium alginate (SA), and was allowed to undergo in-situ polymerization to form polypyrrole (Ppy), resulting in formation of Ppy/SA, a conducting hydrogel, via self-assembly between the polymers. Observation by SEM indicated that the microstructure of the Ppy/SA hydrogel was a typical 3D nano-cylinder network, with the cylinders formed by entanglements of the Ppy and SA molecular chains (cylinder diameter was ∼100 nm). The electrochemical measurements of cyclic voltammetry, galvanostatic charge/discharge and electrochemical impedance spectroscopy indicated that the Ppy/SA hydrogel possessed typical pseudocapacitance, good charging and discharging rate performance, and favorable capacitive behavior; the specific capacity reached up to 249 F/g at the current density of 0.2 A/g. We suggest it has great potential in the field of high-performance electrode materials for supercapacitors.
研究领域:
材料科学
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电化学
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储能
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纳米技术
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高影响因子
CONSTRUCTION AND BUILDING MATERIALS
·
2026
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IF 8.9
Jun Yang,Yihua Xu,Bingqing Fu,Hongyan Li,Lizheng Sha,Huifang Zhao,Yinchao Xu,Daliang Guo,Jing Li
Biomass aerogels have attracted significant research interests in the field of thermal insulation due to their low thermal conductivity, high porosity and biodegradability. However, poor flame retardation and compressive strength limit their wide application. In this study, a high-strength, excellent flame retardant and heat insulating composite aerogel (SAP-Al/PC) was successfully fabricated by incorporating sodium alginate (SA)/polyvinyl alcohol (PVA)-Al (denoted as SAP-Al) with phytic acid/chitosan (PA/CS), and hydrophobic modification of SAP-Al/PC was also performed via chemical vapor deposition of methyltrimethoxysilane (MTMS). The results showed that SAP-Al/PC exhibited outstanding flame retardation with a high limit oxygen index (LOI) of 62.1% and a significant decrease in peak heat release rate (78.6%) and smoke release rate (88.1%) compared to SAP-Al. The SAP-Al/PC also displayed good thermal stability, low thermal conductivity (42.76 mW/(m·K)), high specific modulus (22.89 kN∙m∙kg −1 ) and good water resistance. This study provides a novel strategy for the preparation of multifunctional aerogels, demonstrating their application potential in the fields of thermal insulation and flame retardation.
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高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2022
·
IF 8.025
Yu Zhang,Weiting Fu,Siyao Chen,Hongshan Liang,Jing Li,Yan Li,Bin Li
Eggshells, by-products of egg processing, were ball-milled and homogenized into particles (eggshell particles, ESPs) and then were used as the stabilizer with a two-step oil addition method to produce Pickering emulsions. Meanwhile, sodium alginate (SA) was used to modify the emulsifying ability of ESPs. The results indicated that SA addition helped to improve the dispersion performance and increase the negative charge of ESPs. Pickering emulsions stabilized by ESPs/SA showed much smaller particle size than those stabilized by ESPs. The maximum oil fraction in the ESPs/SA-stabilized emulsions reached up to 0.8, while that was only 0.75 in ESPs-stabilized emulsions. The presence of SA significantly enhanced the freeze-thaw, thermal, dilution, and centrifuge stability of ESPs-stabilized Pickering emulsions. The findings demonstrate the potential of eggshell particles as a kind of natural Pickering stabilizer, which will increase the high value-added utilization of poultry egg industry by-products.
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DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2023
·
IF 8.2
Lin Zhao,Zhipan Feng,Yang Lyu,Jueying Yang,Lizhi Lin,Haochen Bai,Yujing Li,Yongqiang Feng,Yu Chen
Electroactive hydrogel is of great significance in restoring wound currents, promoting cell proliferation, and accelerating the wound healing process. However, the poor dispersity and underlying toxicity of electronic conductive fillers and high concentration of ionic conductors in traditional electroactive hydrogel limited its application in medical care. Herein, an electroactive oxidized sodium alginate/carboxymethyl chitosan/silver nanoparticles (OSA/CMCS/AgNPs) hydrogel was constructed with no additional conductive fillers or synthesized conductive polymers being added, in which the dynamic imine bonds were rapidly formed between aldehyde groups in OSA and amino groups in CMCS, and AgNPs were further in situ formed by UV irradiation. The electroactive hydrogel exhibited the injectable property, strong self-healing ability, excellent biocompatibility, and high antibacterial activities. Moreover, the electroactive hydrogel can significantly promote the proliferation of L929 cells under electrical stimulation. Furthermore, the electroactive hydrogel was proved to significantly accelerate the wound healing process in the full-thickness skin defect model, exhibiting anti-inflammation, promoting the fibroblasts proliferation, angiogenesis, and collagen deposition under electrical stimulation. In summary, the current work explored a novel strategy to construct the polysaccharides-based electroactive hydrogel with good biocompatibility and multi-functions, which is promising to be used in deep wound treatment.
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PubMed
高影响因子
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