JOURNAL OF APPLIED POLYMER SCIENCE
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2026
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IF 3.1
Lifeng Yang,Yirun Yang,Yi Zhu,Huajiang Zuo,Dongmei Deng
Cu(II) contamination in industrial wastewater constitutes a major challenge to global environmental management as traditional treatment methods are plagued by high energy consumption, secondary pollution risks, and substantial costs. A technical strategy was developed to prepare glutaraldehyde-crosslinked sodium alginate-zeolite (SA-HZ/GA) composite adsorption membranes via phase inversion. This approach leverages zeolites' structural reinforcement and mass transfer channel formation combined with glutaraldehyde's crosslinking properties to optimize material performance. SA-HZ/GA features abundant mesopores with sizes ranging from 2 to 16 nm and exhibits fracture strength over 74% higher than pure sodium alginate membranes. At pH 5 and 25°C, its Cu(II) adsorption capacity reaches 46.80 mg/g with over 80% removal efficiency maintained after 5 cycles with 0.1 M HCl as desorbent. The adsorption process fits the Langmuir model ( R 2 = 0.999) and follows pseudo-second-order kinetics, indicating monolayer chemical adsorption. Thermodynamic analysis revealed that the adsorption was spontaneous (Δ G = −12.5 kJ/mol) and endothermic (Δ H = 28.4 kJ/mol), with a positive entropy change (Δ S = 0.14 kJ/(mol·K)) suggesting increased randomness at the solid–liquid interface. This work provides an efficient, stable, and cost-effective engineering solution for heavy metal-laden wastewater treatment.
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CARBOHYDRATE POLYMERS
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2026
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IF 13.2
Luna Liang,Changmei Wu,Junfei Zhang,Junxing Zhang,Lan Xie,Jun Xu,Bai Xue
Although biomass-based 3D printed skeletons with high-performance electromagnetic interference (EMI) shielding performances have garnered significant attention, it is still essential yet challenging to balance the lattice structure and EMI shielding effectiveness (SE). Herein, direct ink writing (DIW) 3D printing with assistance of Ca 2+ crosslinking was employed to fabricate double-Zigzag dislocation carbon nanotube (CNT)/sodium alginate (SA)/strontium ferrite (SrFe 12 O 19 ) (CSSrx/y) skeletons. Benefited from the dislocation structures composited with conductive CNT networks and magnetic SrFe 12 O 19 units, the resultant CSSr18/12Ca0.2 skeleton with double-Zigzag dislocation exhibits the high average total EMI SE (SE T ) of 50.2 dB, which can prevent a Tesla coil from working properly. Moreover, an average absorption coefficient (A) of 0.59 is achieved for double-Zigzag dislocation CSSr18/12Ca0.2 skeleton, indicating the absolutely absorption-dominant shielding mechanism. Owing to the reduced edge defects and improved stress transfer, the tensile strength of double-Zigzag CSSr18/12Ca0.2 is enhanced to 6.8 MPa, which is 1.8 times that of the vertical skeleton. Double-Zigzag CSSr18/12Ca0.2 skeleton also holds superb bending resistance, anti-compressive capacity, and resultant resistance. This research provides a novel approach to design and prepare biomass-based EMI shielding materials with double-Zigzag dislocation structures, which has great application potential in the fields of electronics, aerospace, and wearable devices.
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Innovative Food Science & Emerging Technologies
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2026
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IF 6.9
Liyuan Ma,Danyang Liang,Xiangrui Ren,Li Niu,Wenqing Zhao,Wenhao Li
To address the quality limitations of gluten-free potato noodles caused by the lack of a gluten network, this study elucidates the influence of sodium alginate (SA, 0, 0.5, and 1.5%) and zein (0, 10, 15, and 20%), individually and in combination, on the thermomechanical properties of potato dough and the quality of twin-screw extruded noodles. Mixolab analysis showed that SA significantly increased water absorption, while zein delayed protein weakening ( P < 0.05). Their combination enhanced dough's thermomechanical stability and starch gelatinization. At 0.5% SA and 10% zein, dough development time was minimized (0.70 min), and retrogradation resistance was optimal (C5–C4 = 0.63 Nm). Cooking loss was significantly reduced (16.41–30.71%) with SA at ≤1.5% and zein at ≤15%. Low-field nuclear magnetic resonance revealed their synergistic improvement of internal water distribution in noodles. Textural analysis indicated significantly reduced hardness, chewiness, and resilience for all SA-zein combinations except 1.5% SA with 20% zein, with maximum reductions (60.40%, 68.11%, and 38.18%) at 0.5% SA and 20% zein. Microscopy and quantitative network analysis confirmed that a moderate SA (<1.5%) promoted a continuous zein-starch network, whereas excess SA led to aggregation and structural deterioration. Color and in vitro digestion analyses revealed that SA and zein together enhanced redness and increased the content of rapidly digestible starch. In summary, at appropriate concentrations, the combination of SA and zein can synergistically improve noodle quality, thereby providing both theoretical and practical guidance for the rational design of gluten-free extruded noodles.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Pengfei Jiang,Qi Liu,Ming Hao,Nannan Duan,Zhuohang Min,Jingwen Yang,Ni Xu,Shouchun Ma,Chuanli Qin
DN polymer hydrogel electrolyte is prepared via free-radical copolymerization. • Boronic ester and hydrogen bonds in DN enable excellent self-healing properties. • LiCl and iL hybrid electrolyte imparts good low-temperature resistance (−30 °C). • The electrolyte shows good self-healing and low-temperature ionic conductivity. • The assembled supercapacitor shows self-healing and low-temperature resistance. The practical application of flexible energy storage devices is constrained by their susceptibility to mechanical damage and performance degradation under low-temperature environment. The hydrogel electrolytes with integrated self-healing and low-temperature-resistant properties offers a viable solution to the challenges. This study developed a novel double-network (DN) polymer hydrogel electrolyte (B-(PVHA/SA)/LiCl-iL) with hydrogen bonds and dynamic borate ester bonds, using copolymer of 1-vinylimidazole and N-(hydroxymethyl) acrylamide (PVHA) as the matrix, sodium alginate (SA) as the reinforcing phase, borax (B) as a crosslinker and lithium chloride (LiCl) and 1-ethyl-3-methylimidazolium acetate ionic liquid (iL) as a hybrid electrolyte. The DN structure endows the hydrogel electrolyte with excellent thermal, mechanical and self-healing properties. Furthermore, LiCl and iL as a hybrid electrolyte endows the hydrogel electrolyte with remarkable low-temperature resistance. The optimal B-(PVHA/SA)/LiCl-iL hydrogel electrolyte shows a three-dimensional porous structure, with an ionic conductivity of 9.12 × 10 −2 S/cm. After being severed, it can recover its original structure within 20 min, and this healing process can be repeated for up to 15 cycles. The hydrogel electrolyte exhibits outstanding low-temperature resistance and its ionic conductivity at −30 °C remains at 62.3% of its value at room temperature. The supercapacitor assembled with the hydrogel electrolyte demonstrates a capacitance retention of 80.6% after five cut-healing cycles, and retains 52.1% of its initial capacitance at −30 °C. This work provides a feasible strategy for designing multifunctional hydrogel electrolytes, offering promising potential for flexible energy storage and electronics devices operating in environments with temperature fluctuations and mechanical stress.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2026
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IF 8.7
Jingyu Si,Yijie Hua,Changhu Xue,Qingrong Huang,Zihao Wei
A novel W₁/O/W₂ double emulsion was engineered via sodium alginate internal gelation. • Internal aqueous gelation enhanced the compactness and stability of double emulsions. • Modulated viscoelasticity created a robust barrier for Lactobacillus plantarum . • Microcapsules exhibited a honeycomb network with high solubility and rehydration. • The solid microcapsule matrix further prolonged the storage stability of probiotics. The sensitivity of probiotics to environmental stress significantly restricts their widespread application. Here, a novel W₁/O/W₂ double emulsion was constructed via sodium alginate–mediated internal gelation, and its physicochemical properties and protective efficacy for Lactobacillus plantarum were evaluated. Results showed that internal gelation significantly remodeled the emulsion microstructure, creating a compact internal assembly positively correlated with gelation intensity. Compared to the non-gelled control, the gelled emulsions exhibited superior physical, storage, and centrifugal stability, with the 1% alginate gelation intensity achieving the optimal stabilization effect. Rheological data demonstrated that the sodium alginate gel network formed in the internal aqueous phase greatly increased emulsion viscosity. It also modulated the viscoelastic behavior and built a robust physical barrier. This reinforced internal microenvironment markedly improved emulsion stability and effectively mitigated external stress, thereby significantly enhancing the viability of the entrapped probiotics. Furthermore, to further strengthen this protective effect, microcapsules fabricated via freeze-drying exhibited a uniform and dense honeycomb-like cross-linked network, characterized by excellent rehydration properties, solubility, and low moisture content. These solid microcapsules provided enhanced resistance against environmental stress, further improving the storage stability of the probiotics. In conclusion, the hierarchical strategy combining sodium alginate–mediated internal gelation and microencapsulation offered a robust engineering approach for the high-efficiency preservation of probiotics.
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FOOD CHEMISTRY
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2026
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IF 10.4
Zhen Zhao,Amir Bouallegue,Tianlin Gao,Jianshe Chen,Yong Chen
This study comprehensively investigated the shear and extensional rheological, tribological and sensory properties of sodium alginate (SA) with varying molecular weights (SA-1: 177 kDa, SA-2: 244 kDa, SA-3: 392 kDa), in comparison to commercial thickeners (CMC, κ-CG, XG) at IDDSI level 1–3. The results indicated that significant variability in the concentrations required to achieve the same IDDSI level across the six polysaccharides. The oscillatory rheology analysis suggested that SA-1, SA-2, SA-3 and CMC primarily exhibited viscous, liquid-like behavior across all three IDDSI levels, while XG consistently exhibited elastic and weak-gel behavior. Besides, the tribological properties showed that all SA samples maintained relatively low friction coefficients across all IDDSI levels when compared to the commercial thickeners, demonstrating a better lubricating performance of SA. Moreover, the sensory evaluation confirmed that SA samples had higher smoothness perception than XG. Consequently, developing dysphagia thickeners must address both rheology, sensory appeal and oral comfort.
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JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
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2026
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IF 6.7
Yuntong Liang,Zhongquan Peng,Qiaoyuan Luo,Baofeng Lin
The prevention and control of rice pests and diseases are critical to crop quality. Traditional approaches rely heavily on high-concentration pesticides and antibacterial agents, imposing severe environmental burdens. Based on the coordination between tannic acid (TA) and unsaturated Zn2+ on zeolitic imidazolate framework-8 (ZIF-8), we innovatively fabricated a antibacterial seed coating TA/ZIF-8@SA (TZS) loaded with thiamethoxam (TMX). The dense Zn2+-TA gating network and ZIF-8 double-layer structure enable precise and controllable TMX release, reducing pesticide-induced environmental pollution. This coating extends TMX release by over 15 times relative to commercial formulations. In pot experiments, TMX-TZS exerted persistent control against rice planthoppers with 73.54% control efficacy at 30 days, far exceeding 31% for pure TMX. It also achieved a germination rate of 75.43 ± 6.67% in Fusarium moniliforme-infected soil, demonstrating strong antifungal activity. Therefore, TMX-TZS integrates insecticidal and antibacterial functions to strengthen crop defense, realizing the dual control of rice diseases and pests.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
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IF 8.5
Hao-Lin Song,Yu-Qiao Wang,Qian Zhang,Yue Liu,Lin-Da Zhang,Jia-Nan Yan,Bin Lai,Ce Wang,Hai-Tao Wu
The impact of different mannuronic acid (M)/guluronic acid (G) ratios (2:1, 1:1, and 1:2) in sodium alginate (SA) on the gel properties of low-salt whiteleg shrimp surimi was investigated, and the corresponding mechanism was elucidated in this study. The results showed that all three types of SA (M-block dominant, M/G balanced, and G-block dominant) could improve the texture characteristics of low-salt shrimp surimi gel (SSG), strongly modulated by the M/G ratio. As the G content of the SA increased, the gel strength, hardness, and storage modulus of low-salt SSG were significantly enhanced ( P < 0.05). After adding SA at the M/G ratio of 1:2, the highest water holding capacity (86.13 %) and the lowest cooking loss (1.16 %) were observed in the low-salt SSG. These phenomena could be attributed to the structural differences between the M unit (with an equatorial C5 carboxyl group, flexible) and the G unit (with an axial C5 carboxyl group, rigid) of SA. SA with high G content had a superior ability to construct a rigid network, which restricted protein mobility, increased the probability of protein-protein interactions, and thereby promoted protein cross-linking and disulfide bond formation. Meanwhile, the protein conformation in the low-salt SSG changed from α-helix to β-sheet after adding SA. These effects collectively contributed to forming a dense gel network, leading to better texture and water retention capacity of low-salt SSG. In conclusion, the M and G components of SA play crucial roles in establishing the protein-polysaccharide network, which is essential for developing high-quality low-salt SSG.
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LWT-FOOD SCIENCE AND TECHNOLOGY
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2022
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IF 6.056
Hui Wang,Jinming Liu,Xu Fan,Jing Ren,Qian Liu,Baohua Kong
In this study, natural crab-shell particles (CSP) and deacetylated crab-shell particles (dCSP) were used as crosslinking agents at the present of glucolactone to obtain high strength mono-crosslinked and bi-crosslinked sodium alginate (NaAlg) hydrogel films, respectively. The results indicated that the CSP in the system could occur Ca 2+ crosslinking, and the addition of dCSP could help to form both Ca 2+ crosslinking and polyelectrolytes interactions with NaAlg. The remaining unreacted CaCO 3 could enhance the thermal stability of the films due to the high thermally stable CaCO 3 . The surface hydrophobicity, gel properties, mechanical strength and thermal stabilities of those bi-crosslinked NaAlg hydrogel films were better than those of neat NaAlg film and mono-crosslinked NaAlg hydrogel films, which overcome the inferior thermo-mechanical properties for traditional hydrogel films. In addition, the releasing time of those prepared hydrogel films for diclofenac sodium was higher than 36 h, which illustrated sustained drug releasing activity. The CSP modified NaAlg hydrogel film with 0.5% GDL content exhibited the highest cumulative release amount. The proposed approach is a promising green crosslinking technique to develop high performance NaAlg hydrogel films that can realize active ingredients and drugs sustained release in food packaging and medical wound dressing areas.
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JOURNAL OF MOLECULAR STRUCTURE
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2022
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IF 3.841
Zhi-Peng Hu,Hong-Liu Jiang,Qing-Di Hu,Fu-An He,Hong-Li Zou,Zhu-Rui Zhong,Qiao-Jian Zhu,Hu-Wei Lv,Yong-Yu Yang
The hexachlorocyclotriphosphazene crosslinked sodium alginate polymer (HCSAP)/multi-walled carbon nanotubes (MWCNTs) composite was synthesized by a facile one-pot reaction for the purpose of removing the cationic dyes. The structure of the resultant HCSAP/MWCNTs composite was investigated by the scanning electron microscope, the thermal gravimetric analyzer, the Fourier transform infrared spectroscope, the X-ray photoelectron spectroscopy, and the zeta potential measurement. Furthermore, the dye adsorption behaviors of the HCSAP/MWCNTs composite were explored using the methylene blue (MB) and the crystal violet (CV) as the cationic dye pollutant models. The maximum adsorption capacities of MWCNTs-COOH/PCSAP composite for the MB and the CV reached as high as 662.3 mg/g and 666.7 mg/g, respectively. This good absorption ability could be mainly ascribed to the electrostatic attraction. The effects of the MWCNTs content, the initial dye concentration, and the initial pH value of the dye solution on the dye adsorption capacity, the adsorption kinetic, the adsorption isotherm, the adsorption thermodynamic, and the adsorption-desorption cycle regeneration were also studied for the MWCNTs-COOH/PCSAP composite in this work.
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BIOMACROMOLECULES
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2022
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IF 6.978
Qinglong Cao,Zhen Shu,Taoyi Zhang,Wenxi Ji,Jing Chen,Yun Wei
As a classic flexible material, hydrogels show great potential in wearable electronic devices. The application of strain sensors prepared using them in human health monitoring and humanoid robotics is developing rapidly. However, it is still a challenge to fabricate a high-toughness, large-tensile-deformation, strain-sensitive. and human-skin-fit hydrogel with the integration of excellent mechanical properties and high electrical conductivity. In this study, a flexible sensor using a highly strain-sensitive skin-like hydrogel with acrylamide and sodium alginate was designed using liquid metallic gallium as a “reactive” conductive filler. The sensor had a low elastic modulus (30 kPa) similar to that of skin, a high-toughness (2.25 MJ m–3), self-stiffness, a large tensile deformation (1400%), recoverability, and excellent fatigue resistance. Moreover, the addition of gallium might enhance the electrical conductivity (1.9 S m–1) of the hydrogel while maintaining high transparency, and the flexible sensor device constructed from it showed high sensitivity to strain (gauge factor = 4.08) and pressure (gauge factor = 0.455 kPa–1). As a result, the hydrogel sensor could monitor various human motions, including large-scale joint bending and tiny facial expression, breathing, voice recognition, and handwriting. Furthermore, it might even be used for human–computer communication.
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JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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2022
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IF 10.319
Cheng-Zhang Qi,Xinyu Wu,Ji Liu,Xin-Jie Luo,Hao-Bin Zhang,Zhong-Zhen Yu
Although MXene sheets possess high electrical conductivity and rich surface chemistry and are well suitable for fabricating electrically conductive nanocomposites for electromagnetic interference (EMI) shielding applications, it remains challenging for MXene nanocomposites to achieve tunable EMI shielding performances and customized geometries. Herein, an aqueous MXene/sodium alginate ink is developed to print aerogel meshes with customized geometries using a direct ink writing approach. An ion-enhanced strategy is proposed to reinforce the printed aerogel meshes by multi-level cross-linking. The resultant 3D printed aerogel mesh exhibits an ultrahigh electrical conductivity of 2.85 × 10 3 S m −1 , outstanding mechanical properties , and excellent structural stability in wet environment. More importantly, a wide range of tunable EMI shielding efficiencies from 45 to 100 dB is achieved by the structural design of the 3D printed ion-enhanced MXene/sodium alginate aerogel meshes. As a Joule heater, in addition, the printed aerogel meshes can achieve a wide temperature range of 40–135 °C at low driving voltages. This work demonstrates a direct ink writing approach for the fabrication of ion-enhanced MXene/sodium alginate aerogel meshes with tunable EMI shielding properties and multi-functionalities for applications in many scenarios.
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