Journal of Energy Storage
·
2026
·
IF 10.7
Guangyu Yang,Shihang Li,Yu Feng,Xiaofeng Shi,Lei Li,Qinpei Chen,Guohui Li,Hongyuan Ding,Jianghui Xie,Tiannian Zhou,Feng Yang,Que Huang,Changcheng Liu
Thermal runaway is often accompanied by fire and explosion, causing great harm. Therefore, effective thermal protection materials are currently needed to suppress the occurrence of TRP in power batteries. However, many existing thermal insulation materials have problems such as weak thermal insulation capacity, poor flame retardancy and heavy weight, making them difficult to apply. Therefore, This study synthesized a novel composite material by introducing ammonium polyphosphate (APP) and kaolin (Al₂Si₂O₅(OH)₄) into the sodium alginate (SA) matrix through freeze-drying method. This material has low thermal conductivity as 0.0472 W/m·K and excellent flame retardancy with the 68% limiting oxygen index (LOI) as V-0 level Underwriters Laboratories(UL-94, American combustion test standards) by adding flame retardants. The aerogel sheet used for battery thermal runaway had a thickness of 2 mm. This composite material also effectively suppresses thermal runaway propagation in Lithium-ion batteries, achieving a TRP suppression time of up to 30 min while lowering the peak TR temperature by as much as 400 °C., thereby providing a robust basis for the safe deployment of LIBs.
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高影响因子
LANGMUIR
·
2026
·Vol. 42
·期 29
·21452-21461
·
IF 4.4
Shang Yunting,Fang Yueguang,Xiu Lanling,Wang Ziran,Pang Shibo,Tian Peng,Ye Junwei
Conventional antibacterial materials
face challenges
in simultaneously
integrating efficient antibacterial activity, rapid hemostasis, and
high biocompatibility. Herein, we report a rationally designed composite
sponge (TGSS) composed of a highly porous gelatin/sodium alginate
(Gel/SA) matrix decorated with titanium diboride nanosheets (TiB 2 NSs). The TiB 2 NSs not only endow the TGSS with
efficient near-infrared (NIR)-triggered photothermal conversion for
localized thermal ablation of bacteria but also confer Fenton-like
catalytic activity that converts endogenous H 2 O 2 into cytotoxic hydroxyl radicals (·OH), enabling selective
oxidative damage to microbial cells. Owing to photothermal–chemodynamic
synergy, TGSS achieves exceptional antibacterial performance with
99.09% inhibition against Escherichia coli ( E. coli ) and 99.99% against Staphylococcus aureus ( S. aureus ) under NIR irradiation. Concurrently, the highly porous Gel/SA scaffold
promotes rapid blood coagulation via intrinsic pathway activation
and physical adsorption, resulting in significantly reduced bleeding
time and blood loss. Importantly, the polymeric matrix effectively
immobilizes TiB 2 nanosheets (TiB 2 NSs), suppressing
nanoparticle leaching and thereby mitigating potential nanotoxicity.
Furthermore, TGSS demonstrated favorable biocompatibility, as evidenced
by a hemolysis rate below 5% and cell viability maintained above 90%
after 48 h in cytotoxicity assays. Collectively, TGSS effectively
prevents bacterial infection and accelerates blood coagulation, showcasing
significant potential as a multifunctional wound dressing.
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PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2026
·
IF 8.7
Min Ma,Taiyu Liu,Chun Wang,Yunqi Liu,Wanyao Tan,Yingying Zheng,Wenhui Fan,Yue Su,Hong Li,Mingxue Li,Yuemi Zhou,Yongqi Zhang
The mesoporous polydopamine-loaded α-N-thiosemicarbazone was prepared. • A multifunctional photothermal dual-network hydrogel was fabricated. • Hydrogel exhibits injectability, self-healing, and tissue adhesion properties. • It possessed both photothermal antibacterial activity and wound-healing ability. • Hydrogel exhibits antioxidant and excellent biocompatibility. Refractory wounds caused by bacterial infections pose a severe clinical challenge, highlighting the urgent need for wound dressings with both excellent antibacterial activity and advanced tissue regeneration capabilities. Herein, a multifunctional photothermal antibacterial hydrogel (GHUS-mPDA@HL) was fabricated using mesoporous polydopamine-loaded α-N-thiosemicarbazone (mPDA@HL) nanoparticles, ureido-pyrimidinone grafted gelatin (GHU) and sodium alginate as primary components. The hydrogel network was constructed via quadruple hydrogen bonding and an interpenetrating polymer network, rendering it injectable, self-healing, and tissue-adhesive properties. The mPDA@HL nanoparticles combine the antibacterial and antioxidant properties of α-N-heterocyclic thiosemicarbazone compound (HL) with intrinsic photothermal and antibacterial capacity of mesoporous polydopamine (mPDA). Furthermore, under 808 nm near-infrared irradiation, GHUS-mPDA@HL hydrogel exhibits excellent photothermal performance, enabling efficient bacterial eradication, inflammatory mitigation, and accelerated wound healing. The GHUS-mPDA@HL hydrogel achieves synergistic antibacterial effects against both Gram-negative Escherichia coli (99.98%) and Gram-positive Staphylococcus aureus (99.99%) under near-infrared irradiation. Additionally, the hydrogel showed excellent biocompatibility and effective reactive oxygen species scavenging ability. In a full-thickness skin wound mouse model, GHUS-mPDA@HL hydrogel under NIR irradiation remarkably accelerates wound repair, with a healing rate of 98.49% within 10 days. It also promotes collagen deposition and angiogenesis to further facilitate wound closure. Overall, this GHUS-mPDA@HL hydrogel presents an excellent antibacterial activity and potent wound-healing promotion effects, providing a promising strategy for the development of intelligent wound dressings.
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高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
·
2026
·
IF 7.1
Zhufang Duan,Yingqi Wang,Xiang Li,Linsen Ma,Luyao Liu,Fuqiang Xiao,Xin Lü,Gang Wu,Yanglei Yi
Walnut kernel pellicle is valorized as a functional ingredient in edible films. • Walnut kernel pellicle extract exhibits antioxidant and antibacterial activity. • Chitosan nanoparticles achieve 89.79% extract encapsulation. • Active coatings delay the oxidation and microbial growth in fresh walnut kernels. This study developed an active edible film based on sodium alginate, incorporating chitosan nanoparticles loaded with walnut kernel pellicle extract to enhance the storage stability of fresh walnut kernels. The bioactivities of walnut kernel pellicle extracts obtained using methanol, ethyl acetate, n-butanol, and petroleum ether were compared. Based on antioxidant and antibacterial activities, the methanol and n-butanol extracts (16 mg/mL) were selected for subsequent experiments and further characterized by non-targeted metabolomics. Chitosan nanoparticles were prepared via ionic gelation, and at a chitosan-to-sodium tripolyphosphate (TPP) ratio of 5:1, the nanoparticles encapsulating the MeOH extract exhibited the highest encapsulation efficiency, together with a relatively small particle size (475.17 nm) and a positive zeta potential (+34.27 mV), indicating good stability. Incorporating the extract-loaded nanoparticles into sodium alginate at a polymer-to-nanoparticle ratio of 10:1 enhanced the bioactivities, structural integrity, thermal stability, and mechanical properties of the film. When applied to peeled fresh walnut kernels, the composite film significantly delayed lipid oxidation and microbial growth. The 10 g/L sodium alginate formulation exhibited a higher oxidative induction time during storage, indicating better oxidative stability and preservation performance. This study provides an effective strategy for preserving fresh walnut kernels and an approach for valorizing walnut by-products.
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高影响因子
FOOD CONTROL
·
2026
·
IF 7
Jun Yang,Zhengke Zhang,Xiangbin Xu,Mohammad Rizwan Khan,Naushad Ahmad,Abdorreza Mohammadi Nafchi,Haiming Chen,Wanli Zhang
Sodium alginate/pectin (SP) composite film functionalized with Nano-selenium (SeNPs) stabilized with Dendrobium officinale polysaccharides (DOP) was developed to enhance its physicochemical and biological activity properties. The addition of DOP significantly improved the dispersibility and surface potential of SeNPs, and the nanoparticles stabilized with 100% DOP exhibited the smallest particle size (210.45 nm), highest zeta potential (-7.95 mV), and optimal superoxide dismutase (SOD) and catalase (CAT) -like activities. Adding 2% SeNPs to SP film improved UV-blocking performance, matrix density, and thermal stability, as well as extensibility and barrier performance. Among the various formulations, SPS-2 film (SP film ccontaining 2% SeNPs) exhibited the highest antioxidant and antibacterial activity, effectively inhibiting Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) . The high-concentration SeNPs composite film demonstrated high biocompatibility, exhibiting no hemolytic activity against red blood cells and minimal cytotoxicity against RAW 264.7 cells. In a postharvest strawberry preservation test, the SPS-2 coating effectively reduced weight loss and spoilage, maintained firmness and soluble solids, and significantly enhanced antioxidant activity by preserving total phenol and flavonoid content. These results demonstrate that 2% SeNPs-added SP films provide an integrated strategy combining enzyme-mimetic activity, enhanced film performance, and high biosafety, and show promising potential for postharvest fruit preservation.
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CARBOHYDRATE POLYMERS
·
2026
·
IF 13.2
Yue Xu,Liwen Kang,Xin Su,Qiu Xiang,Shiyu Wang,Mengping Zhu,Zhishuo Chen,Hanbing Rao,Tao Zhou,Gehong Su
Gel materials with exceptional mechanical property, environmental stability, and reliable sensing performance are highly desirable for intelligent human-machine interfaces. However, conventional hydrogel systems generally prone to fail under load-bearing applications due to their poor mechanics, progressive dehydration, and freezing-induced performance deterioration. Herein, we report a mechanically tough ionogel with remarkable environmental stability via a facile solvent-replacement strategy: incorporating a non-volatile halometallate ionic liquid composed of CaBr 2 and 1-butyl-3-methylimidazolium bromide ([BMIM]Br) into a polyacrylamide/sodium alginate (PAAm/SA) hydrogel network. Synergistic coordination and ion–dipole interactions reconstructed the network structure and solvent–polymer microenvironment, facilitating efficient energy dissipation. Consequently, the optimized ionogel exhibited remarkable environmental stability and mechanical properties, including 2860% stretchability, 0.68 MPa tensile strength, 9.46 MJ/m 3 toughness, and 16.02 kJ/m 2 fracture energy. Moreover, the ionogel demonstrated stable electromechanical response across a broad strain range (1–500%). Benefiting from these merits, the ionogel-based sensor enabled accurate monitoring of complex human motions and achieved 99.45% recognition accuracy for eight static gestures when integrated with a machine learning algorithm. Collectively, this work provides a facile strategy for constructing environmentally stable yet mechanic tough ionogels through coordination-ionic co-regulation paradigm, offering a viable pathway towards reliable and field-deployable gel systems for wearable electronics. Download: Download high-res image (118KB) Download: Download full-size image
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 2
·122076
·
IF 7.5
Huili Zhang,Meiqi Pan,Chunlin Dong,Fangyang Yuan,Zhilong Yu,Shuting Huang,Lixin Lu
Developing biodegradable packaging materials with strong mechanical strength and reliable barrier performance is essential for reducing reliance on petroleum-based plastics and promoting sustainable food packaging. In this study, ginger residue-derived nanocellulose (GNC) was extracted via sulfuric acid hydrolysis and combined with two-dimensional nanomaterials montmorillonite (MMT) and alkyl ketene dimer (AKD) to construct Brick-and-Mortar-like multidimensional sodium alginate (SA)-based composite films. For the ternary composite system, response surface methodology was used to optimize the formulation, yielding an optimal composition of 5.2% GNC, 7.6% MMT, and 9.2% AKD (SA-GMA). The obtained SA-GMA film exhibited a significant relationship between structure and performance: including a reduction in oxygen permeability to 2.274 cm³ /m²·24 h·0.1 MPa, a decrease in water vapor permeability to 5.289 × 10⁻⁷ g·m/m²·h·Pa, and an increase in tensile strength to 62.39 MPa. Structural and spectroscopic analyses revealed that GNC and MMT synergistically reinforced the polymer matrix through a compact layered architecture, while AKD improved hydrophobicity via β-keto ester bond formation and the distribution of hydrophobic droplets. These combined effects endowed the composite films with enhanced barrier and mechanical properties. Overall, this work provides an effective strategy for valorizing agricultural waste and developing high-performance bio-based packaging materials with potential in sustainable packaging applications.
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FOOD CHEMISTRY
·
2026
·
IF 10.4
Heqing Yang,Yu Nie,Juwei Liang,Tong Wang,Wei Li,Weining Wang,Dianyu Yu
Composite oleogels were prepared using a soy protein isolate (SPI)‑sodium alginate (SA) complex in synergy with rice bran wax (RBW). The effect of SA addition on composite oleogels was investigated, and kinetic models for oxidation and Δ 9 -tetrahydrocannabinol degradation (Δ 9 -THC) were established. Research found that when the SA concentration was increased to 1.25 wt%, the obtained composite oleogel reached its optimal state, with a dense and mechanically strong SPI-SA framework formed internally and almost no oil leakage externally. Fourier transform infrared spectroscopy indicated the presence of hydrogen bonds, van der Waals forces, hydrophobic interactions, and electrostatic attractions in the composite oleogels. An oxidation kinetic model was established for the composite oleogel, and the resulting equation is c = e 20.8594 e − 7324.3829 T t + 0.98 , and the degradation rate of Δ 9 -THC was calculated to be 0.0043 days −1 , with a half-life of 160.63 days. The results indicate that composite oleogelation can reduce lipid oxidation and delay active substance degradation.
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高影响因子
Gels
·
2026
·Vol. 12
·期 6
·468
·
IF 6.4
Xuecui Song,Jing Guo,Wei Chen,Mengya Liu,Yihang Zhang,Wenhui Xiao,Fucheng Guan
Recently, conductive hydrogels have gained extensive applications in flexible wearable electronics and have garnered considerable attention. However, their inherent swelling behaviour and limited mechanical strength have hindered their further development. In this study, a polyacrylamide/sodium alginate (PAM/SA, PS)-based hydrogel with high mechanical strength and anti-swelling properties was prepared by combining mechanical stretching–drying pretreatment with a bimetallic ion (Li+/multivalent metal ion) post-soaking strategy. Among multivalent metal ions (Ca2+, Al3+, and Zr4+), the Al3+-crosslinked hydrogel (PS-Al3+) demonstrated outstanding overall performance. It exhibited excellent mechanical properties, with tensile strength, elongation at break, and impact strength reaching 9.71 MPa, 993.53%, and 75 MJ/m3, respectively. Its dense network structure also gave it excellent anti-swelling properties (swelling ratio of 14%). As a strain sensor, the PS-Al3+hydrogel displayed good conductivity (1.33 S/m), high sensitivity (GF = 2.25), fast response (response time of 403 ms), and negligible hysteresis (recovery time of 407 ms). Benefiting from its exceptional resistance to expansion, the material’s sensor response signals in underwater environments are highly consistent with those in air. Furthermore, this sensor has been successfully applied to swimming motion monitoring and data transmission in underwater environments. This study proposes a novel, low-cost, and simple approach for developing flexible sensors suitable for underwater environments.
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高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
·
2026
·
IF 4.4
Nana Lei,Junyan Liu,Wenjing Guo,Bowen Liu,Liming Fan
Color-tunable luminescent hydrogels were assembled from naturally derived sodium alginate (AG) and κ-carrageenan (κ-Car). • The hydrogels were formed through coordination interaction between Eu 3+ /Tb 3+ ions and the carboxylate groups of AG, together with a 3D hydrogen-bonding network. • The hydrogel beads and films were fabricated by the droplet method and the immersion/ion diffusion method, respectively. To develop biocompatible optical materials with high transparency, tunable emission, and information encryption capability, color-tunable luminescent hydrogels were prepared using naturally derived sodium alginate (AG) and κ-carrageenan (κ-Car) as a composite polysaccharide matrix. The hydrogels were formed through coordination interaction between Eu 3+ /Tb 3+ ions and the carboxylate groups of AG, together with a three-dimensional hydrogen-bonding network from AG and κ-Car. 2,6-Pyridinedicarboxylic acid (DPA) was introduced as an antenna ligand to sensitize the characteristic emission of rare-earth ions. Luminescent hydrogel beads and films were fabricated by the droplet method and the immersion/ion diffusion method, respectively, and then their photoluminescence properties, microstructures, and information encryption behaviors were systematically investigated. The obtained hydrogels remained highly transparent under visible light and exhibited intense emission under UV excitation. DPA markedly enhanced the characteristic emission of Eu 3+ , and continuous color tuning from red to green was achieved by varying the Eu 3+ /Tb 3+ molar ratio. SEM and FT-IR analyses revealed that the hydrogel films possessed a layered microstructure and that carboxylate groups were involved in coordination with rare-earth ions. Taking advantage of the optical feature of being hidden under visible light and revealed under UV light, array-based and multilevel responsive information encryption models were constructed, enabling the visual readout of concealed information. This work provides a facile and environmentally benign strategy for constructing rare-earth luminescent hydrogels and expands their potential applications in anti-counterfeiting and information encryption. Color-tunable luminescent hydrogels for information encryption were assembled from naturally derived sodium alginate (AG) and κ-carrageenan (κ-Car) via Eu 3+ /Tb 3+ ions coordination, sensitized by 2,6-pyridinedicarboxylic acid (DPA). The hydrogel beads and films were fabricated by the droplet method and the immersion/ion diffusion method, respectively. Download: Download high-res image (113KB) Download: Download full-size image
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高影响因子
CARBOHYDRATE POLYMERS
·
2026
·
IF 13.2
Chengyu Yu,Nana You,Chengxu Pei,Junchao Ren,Mengde Huang,Shijing Song,Yuanyuan Xu,Guangbing Zhao,Hao Nie,Hanwu Lei,Xuya Jiang,Fang Wang,Qingfa Zhang
Conductive hydrogels integrating mechanical reinforcement, electromagnetic shielding, and sensing functions have attracted considerable attention for multifunctional wearable electronics. Herein, a morphology-controlled polypyrrole (PPy) strategy was proposed to fabricate biochar (BC)-reinforced sodium alginate (SA) and polyacrylamide (PAM) semi-interpenetrating polymer network (semi-IPN) multifunctional conductive hydrogels. The results showed that the tubular PPy-based composite hydrogel, denoted as BSPH@PPy-Tube exhibited enhanced strength, stretchability, and toughness, with a tensile strength of 1.00 MPa, an elongation at break of 1486.43%, a modulus of 0.07 GPa, and a tensile toughness of 8.14 MJ·m −3 . This improvement was attributed to the synergistic network among tubular PPy, BC, and the SA and PAM matrix, where tubular PPy served as conductive bridges and stress-transfer pathways, while hydrogen bonding, electrostatic interactions, and π-π stacking strengthen the interfacial interactions within the hydrogel. The interconnected tubular PPy and BC conductive network promoted electron transport, interfacial polarization, and multiple electromagnetic wave attenuation, achieving an EMI shielding effectiveness of 46.19 dB. The BSPH@PPy-Tube was further assembled as a flexible strain sensor, exhibiting a gauge factor of 5.07 in the 100–200% strain range and stable electrical responses to human motions. This work provides a feasible strategy for constructing multifunctional conductive hydrogels with mechanical robustness, electromagnetic protection, and wearable sensing capability.
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高影响因子
DESALINATION
·
2026
·
IF 9.9
Peng Liu,Xian Sun,Xiaobin Gu,Yunan Mu,Hongen Nian
A SA/MMT/CNT hydrogel enables efficient solar-driven interfacial evaporation. • MMT regulates water states to promote interfacial water evaporation. • Fluorinated interfacial engineering effectively suppresses salt crystallization. • MD simulations reveal hydrogen-bond evolution and interfacial ion exclusion. Conventional desalination system suffers from high energy consumption and complicated equipment combination. Solar driven interfacial evaporation offers great potential for next-generation desalination since it is only driven by solar energy, and its system efficiency is substantially high. However, achieving a balance of strong light absorption, structural stability and long-term salt tolerance in a single solar evaporator is still a big challenge. This work, therefore, proposes a sodium alginate /montmorillonite/carbon nanotube (SA/MMT/CNTs) composite hydrogel for efficient solar-driven interfacial evaporation. By integrating a broadband photothermal CNTs network with low cost and hydroxyl-rich MMT nanosheets, the composite system simultaneously achieves enhanced solar light absorption and accelerated water evaporation. To further improve the anti-salt performance of the prepared composite hydrogel, a hydrophobic surface modification method with silane coupling modification strategy is introduced. And molecular dynamics (MD) simulations provide molecular-level insights into the evolution of molecular configuration and hydrogen bond density, ion distribution, thereby revealing the underlying mechanisms responsible for the improved anti-salt performance. The resulting composite hydrogel based solar evaporator delivers an evaporation rate of 1.76 kg m −2 h −1 under one-sun irradiation. In addition, it exhibits excellent long-term stability and strong resistance to salt accumulation under salt solution. Outdoor experiment in Xining City, Qinghai province is preformed to verify the practical potential of the composite hydrogel based solar evaporator. This study provides a low-cost and effective strategy for high-performance solar desalination systems. Download: Download high-res image (372KB) Download: Download full-size image
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危险品化学品经营许可证（带存储）