JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.6
Yitong Yue,Shuai Wang,Hanxue Zhu,Yahong Li,Gaojie Han,Yuezhan Feng,Bing Zhou,Chuntai Liu
Lightweight and multifunctional aerogel films have emerged as promising candidates for electromagnetic interference (EMI) shielding and infrared (IR) stealth. However, current pore structures are mostly random, and achieving the construction of oriented porous layer structures remains a challenge. Herein, the MXene/sodium alginate (SA) films with ordered porous structure are fabricated via long-channel wet spinning combined with confined freeze-drying. The slit channels generate a stable shear field that induces ordered alignment of MXene nanosheets, while Ca 2+ -triggered ionic crosslinking of SA and interfacial coupling with MXene ensure robust structural stability. Confined freeze-drying further creates interlayer pore channels without disrupting the layered orientation. This oriented porous architecture prolongs electromagnetic wave dissipation pathways and reduces effective thermal conductivity, enabling simultaneous EMI shielding and IR stealth enhancement. When the content of MXene is only 50 wt%, the aerogel films achieve an EMI shielding efficiency of 65 dB across X, Ku, and K bands, alongside a low thermal radiation temperature of 76.87 °C under a 150 °C background. Additionally, favorable Joule heating and photothermal conversion capabilities are demonstrated, highlighting potential for personal protection and multi-scenario applications. This work offers a scalable strategy for designing oriented porous structures toward integrated EMI shielding and IR camouflage materials. Download: Download high-res image (123KB) Download: Download full-size image
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ACS Applied Polymer Materials
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2025
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IF 4.7
Xiaoxu Li,Yuchen Dong,Zhangzun Guo,Xiaoyu Huang,Xiaoyan Zhang
Excessive high levels of reactive oxygen species (ROS) at the wound site are also one of the main reasons for difficulty in wound healing. Herein, a kind of antioxidant nanofiber membranes (NFMs) was fabricated by electrospinning sodium alginate (SA) and multi-ether fullerene derivative (mono-C60-O) solutions, which combined the good biocompatibility of SA and excellent antioxidant property of fullerene. The molecular structure of mono-C60-O was characterized by 1H NMR, 13C NMR, and MALDI-TOF mass spectrometry. The morphology of the produced SA/mono-C60-O-X NFMs was homogeneous and consistent, as characterized by scanning electron microscopy (SEM). The scavenging efficiencies of SA/mono-C60-O-25 NFMs were high, about 93.3%, 91.1%, and 92.2% for DPPH, ABTS, and ·OH, respectively. The efficiency value is also significantly higher than that of the commercial product Tegaderm. Good cell and blood compatibility exhibited a potential use of SA/mono-C60-O-25 NFMs in wound healing. In vivo wound healing studies showed that the wound of the SA/mono-C60-O-25 NFM-treated mice group was almost completely healed, while the SA NFM-treated and control groups still obviously healed on day 14. Hematoxylin and eosin (H&E), Masson, and immunohistochemical staining indicated that the SA/mono-C60-O-25 NFMs had a rapid wound healing effect due to the excellent antioxidant property of fullerene, which could reduce inflammatory factors, accelerate angiogenesis, increase collagen deposition, and exert anti-inflammatory effects.
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JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
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2025
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IF 2.8
Zhikun Li,Yuanyuan Li,Yulong Ma,Wenxin Ji,Yonggang Sun
The purification of biomacromolecules, particularly proteins, plays an increasingly vital role in the fields of medicine, biopharmaceuticals, and emerging technologies. Adsorbents with excellent adsorption capacity, superior cycling performance, and environmental compatibility are crucial for protein separation and adsorption. A temperature- and pH dual-stimulus responsive hydrogel material for the adsorption and separation of protein was successfully prepared by copolymerizing sodium alginate (SA) as the matrix with N-isopropylacrylamide (NIPAM), acrylic acid (AAC), and simultaneously introducing zirconium-based metal-organic frameworks (Zr-MOF). This hydrogel material exhibits excellent adsorption and controlled release properties for protein including bovine hemoglobin (BHB) and bovine serum albumin (BSA) with maximum adsorption capacities of 617.45 mg/g and 527.06 mg/g at 45 °C, respectively. Experimental results demonstrate that the adsorption and release behavior of the hydrogel toward proteins can be effectively regulated by adjusting environmental temperature or pH value in an aqueous medium without any acidic, alkaline, high-salt, or organic solvent. Additionally, the material exhibits good cyclic stability, maintaining more than 85 % of its initial protein adsorption capacity after five adsorption-desorption cycles. This study provides new insights into the development of smart responsive biomolecular adsorption materials and has significant application potential in the fields such as drug controlled release and biological separation.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE
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2025
·Vol. 36
·期 1
·1-12
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IF 4.5
Chi Menghui,Zhang Leyuan,Deng Bing,Lin Jing,Wang Qian,Zhang Lina,Yin Min,Gu Lingwen,Li Daohao,Zhao Guiqiu,Li Cui
The blindness rate of fungal keratitis is high, however, traditional therapy, like eye drops, has poor bioavailability. To make the traditional treatment more effective, new drug-loading system was explored, which can attach to the ocular surface to prolong the release time of natamycin (NATA). Sodium alginate (SA) has attractive properties of biocompatibility, biodegradability, which have been exploited to be natural-origin polymer of drug release. Because of special egg box structure of SA, the sodium ions in the structure can be exchanged with divalent cations through crosslinking, which could control the pore size inside the material and release rate of the loaded drug. Here, we utilized the composite of sodium alginate and polyethylene oxide (PEO) with natamycin loaded through crosslinking with calcium ion ethanol aqueous solution to delay drug release and treat fungal keratitis. The results from experiments proved that the membrane with the slowest rate of drug release was the group with the ratio of ethanol to water 2:1, and the 1% natamycin-loaded films could effectively inhibit the growth of Aspergillus fumigatus . SA-PEO membranes could reduce the inflammatory response. Conclusively, NATA-SA-PEO films could be considered a useful approach to prolong ocular natamycin maintenance and improve the outcome of fungal keratitis. Graphical
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ACS Sustainable Chemistry & Engineering
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2025
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IF 7.3
Yingjian Ma,Jun Zhang,Rui Zhao,Pengkun Yan,Meng Yu,Fengyu Li,Ze Lv,Xinyu Guo,Yu-cheng Gu,Yong Xu,Xuemin Wu
Magnaporthe oryzae causes a fungal disease that poses a serious risk to global food security. Nanoagrochemicals are perceived as sustainable, economical, and environmentally friendly alternatives to traditional pesticides. Plant immune activators can be applied as the active ingredients of nanopesticides to control diseases in agriculture, but their use is limited and corresponding research is lacking. In this study, a nanodelivery system (PBZ@CaCO3@SG) for the on-demand release of a plant immune activator (probenazole; PBZ) was prepared using nano-CaCO3 after coating with sodium alginate–gelatin (SG). In vitro, at 48 h, the release rate reached 97.9% and 88.4% at pH 4.5 and 6.0, respectively, which greatly exceeded that under neutral conditions (pH 7.4), with acid-responsive release characteristics. Moreover, it responded quickly to the acidic microenvironment generated during M. oryzae infestation and rationally released PBZ, effectively improving plant resistance to M. oryzae and minimizing disease. Notably, M. oryzae infection was markedly reduced, by 60.6%, after PBZ@CaCO3@SG treatment. Mechanistically, PBZ@CaCO3@SG enhanced both physical barrier formation and systemic acquired resistance in rice, enhancing resistance to M. oryzae. It also showed good biosafety for both microbial communities and earthworms in the soil. This comprehensive study revealed multiple mechanisms by which PBZ@CaCO3@SG interacts with plants and pathogens, inhibits damage, and maintains nontarget biosafety, emphasizing its great potential for plant disease management.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2026
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IF 8.5
Amatjan Sawut,Yurou Feng,Rena Simayi,Manfang Pan
Heavy metal ion pollution in wastewater, particularly Cu 2+ contamination, threatens ecology and human health, demanding efficient adsorption materials in environmental remediation. However, conventional adsorbents suffer from insufficient capacity, poor mechanical stability, weak selectivity, and low reusability, restricting their practical application. Herein, a semi-interpenetrating network composite hydrogel (ZIF-8-AVA) was fabricated via in situ self-assembly, integrating ZIF-8 nanocrystals into a poly(acrylamide- co -vinylimidazole)/sodium alginate (AVA) matrix. Vinylimidazole units served as nucleation anchors, firmly immobilizing ZIF-8 on the polymer backbone via metal-ligand coordination to form a stable system. ZIF-8 significantly enhanced AVA's mechanical properties and Cu 2+ adsorption performance: the composite followed the Langmuir monolayer adsorption model with a maximum adsorption capacity of 355.9 mg/g, achieving 93.81% Cu 2+ removal efficiency at an initial concentration of 50 mg/L. Furthermore, the ZIF-8-AVA hydrogel exhibited excellent selectivity for Cu 2+ in multi-competing-ion systems and maintained high adsorption efficiency after 5 consecutive adsorption-desorption cycles. The key innovation lies in the in situ self-assembly strategy that realizes the intimate integration of ZIF-8 with the hydrogel matrix via coordination-driven anchoring, overcoming the common issue of MOF particle leaching and synergistically enhancing adsorption capacity, selectivity, and mechanical stability. This work offers a novel approach for tunable MOF hydrogels, with great potential in heavy metal wastewater treatment.
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FOOD CHEMISTRY
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2026
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IF 9.8
Hui Shen,Jingsong Zhu,Yinxue Jiao,Yajing Qi,Teng Li,Wenhui Qi,Ying Shu,Kaixuan Zhao,Fengyang Wu,Chi Ren,Zhisheng Zhang
This study systematically explored the effects of sodium alginate (SA) on the structural and interfacial properties of donkey myofibrillar protein (DMP), and the curcumin stability and delivery performance in the DMP-based Pickering emulsion. The results showed that SA interacted with DMP via hydrogen bonding and van der Waals forces, increased surface hydrophobicity, and electrostatic repulsion. These interactions promoted the formation of the three-dimensional network within the emulsion continuous phase, significantly improving its rheological properties and storage stability. Molecular docking showed that SA enhanced the binding affinity between curcumin and DMP. Consequently, SA addition (optimal at 0.4%) significantly increased the curcumin embedding efficiency and stability ( P < 0.05). In vitro digestion studies demonstrated that SA inhibited the rate of curcumin release during gastric digestion and improved its bioaccessibility by approximately 10%. This study provides a protein-polysaccharide-based strategy for developing stable Pickering emulsion systems for the effective delivery of hydrophobic bioactive substances.
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Desalination and Water Treatment
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2015
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IF 1.173
Zhiyuan Wang,Chao Wang,Peifang Wang,Jin Qian,Jun Hou,Yanhui Ao
The adsorptive removal of the most commonly occurring cyanobacterial toxin microcystin–LR by polyacrylamide/sodium alginate-modified montmorillonite (PAM/SA-MMT) superabsorbent nanocomposite was investigated through the HPLC/UV system. The process of PAM/SA-MMT preparation and MC-LR adsorption was characterized by scanning electron microscopy, energy dispersive X-ray microanalysis, X-ray diffraction analysis, and Fourier transform infrared spectroscopy analysis. With the application of Box–Behnken statistical experimental design combined with Response surface methodology, the quadratic statistical model was established to predict the interactive effects of pH, weight ratio (wr) of AM to SA, and weight content (wt) of MMT on MC-LR adsorption and to optimize the main controlling parameters. The maximum adsorption capacity was observed with pH 2.5–4.5, wr 55–65, and wt3–5%. The MC-LR adsorption capacity of PAM/SA-MMT increased with increase in temperature from 10 to 40°C. Kinetics were consistent with Pseudo models and revealed that the sorption process could reach the equilibrium within 80 min and involved several different rate-controlling kinetic stages. The Langmuir isotherm model predicted that the theoretical maximum adsorption capacity of PAM/SA-MMT was 32.66 mg g−1. Over 85% adsorption and 80% desorption could be achieved after five regeneration cycles and the recovery of MC-LR reached 92.8% without ionic effect. PAM/SA-MMT superabsorbent nanocomposite was determined as effective, economic, and environmentally benign for MC-LR removal on a large-scale application.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2017
·
IF 3.671
Xinyu Zhao,Jiacheng Li,Yuhong Feng,Gaobo Yu,Qingfeng Zhou,Furui He,Dunchao Xiao,Kai Chen,Lei Zhang
In this study, cholesteryl-grafted sodium alginate derivatives (CSAD) with different molecular weights were synthesized by esterification. The structure of CSAD was confirmed by FT-IR and 1 H NMR spectrometers. The effects of pH and CSAD polymer concentration on the self-assembled behavior and particle size of CSAD were investigated by fluorescence measurement (FM) and dynamic light scattering (DLS). In the presence of Ca 2+ , the cholesteryl-grafted sodium alginate derivative was used for fabricating self-assembled nanoparticles that can effectively encapsulate the drug acetamiprid . The drug-loaded nanoparticles were characterized by transmission electron microscopy (TEM). The encapsulation efficiency ( EE ) and acetamiprid drug release behavior from the nanoparticles were also studied. The results reveal that CSAD self-assembled nanoparticles had a diameter of 100 nm and were nonaggregated in aqueous media; Moreover, the encapsulation efficiency and the release behavior of nanoparticles were influenced by the MW of CSAD. The mechanism of acetamiprid release was found to vary from non-Fickian (anomalous) to Fickian transport with a decrease in the molecular weight of CSAD.
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LANGMUIR
·
2026
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IF 3.9
Muhammad Yawar Younis,Muhammad Yasir Younis,Safdar Abbas,Yun Wei
Advanced phosphate removal is crucial for mitigating eutrophication. Adsorption stands out for phosphate removal, yet, a weak affinity and slow mass transfer at low concentrations often hinder it. Herein, hierarchical CuCo-LDH@SA-10 hydrogel beads prepared by ZIF-67 conversion and alginate immobilization were fabricated with freeze-drying, which yielded a nanosheet-coated mesoporous architecture accelerating transport. The adsorbent removed phosphate from 50 to 0.05 mg L–1 in real wastewater within three cycles, achieving an adsorption capacity of 140.65 mg g–1 under batch conditions. Equilibrium data followed the Langmuir isotherm, while the pseudo-second-order model provided the best description of uptake kinetics. High removal persisted over a pH range of 3–6, with good tolerance to coexisting anions (chloride being the most suppressive). Beyond phosphate, the material effectively removed chromate, achieving an uptake of 86.75 mg g–1. The beads were regenerable, retaining ≥90% capacity over three cycles and 87% after five cycles. Overall, the integration of hierarchical porosity, strong performance at low concentrations, and demonstrated dual-pollutant removal underscores CuCo-LDH@SA-10 as a promising adsorbent for advanced phosphate and chromate polishing in wastewater.
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CARBOHYDRATE POLYMERS
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2026
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IF 13.2
Zhu Shan,Bo Jiang,Sehrish Manan,Peng Wang,Wenjuan Wu,Yongcan Jin
Dual dynamic bond hydrogel dressings, known for their exceptional self-healing abilities and stimulus responsiveness, offer significant benefits in promoting wound healing. Hence, a multifunctional hydrogel (OCMC/LA/AP/PVA E ) was developed by forming dynamic imine and borate ester bonds among oxidized carboxymethyl cellulose, aminated lignin, modified sodium alginate, poly (vinyl alcohol) and epigallocatechin-3-gallate (EGCG). This adaptable network structure via segmental exchange driven by dual dynamic bonds in a microenvironment enhanced the stability of hydrogels, improved mechanical properties, and exhibited unique pH-sensitive responsiveness, making it well suited for the dynamic wound environment. This responsiveness facilitated the controlled release of drugs and lignin, achieving 75.11% cumulative release of EGCG and 72.09% of lignin and nearly 100% antibacterial rate, further enhancing biological activity. Additionally, dual action of lignin as both structural framework and bioactive substance contributes to the high-value utilization of biomass materials. The hydrogels also exhibited good UV–vis resistance, biocompatibility, and adhesion properties, and enabled the monitoring of drug and lignin release through changes in conductivity. In vivo testing on mice whole skin defect model revealed that the hydrogel significantly accelerated wound healing and supported tissue regrowth. The developed dual dynamic bonds improve the hydrogel's functionality and pave the way for innovative applications in biomedicine.
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FOOD CHEMISTRY
·
2026
·
IF 10.4
Junjie Tang,Jianxi Zhang,Huixian Lu,Xingyan Chen,Si Shi,Jie Shi,Yuanzhao Li,Jie Pang,Chunhua Wu
Postharvest spoilage reduces fruit marketability and shelf life. A multifunctional packaging for strawberries, composed of carboxymethyl chitosan, sodium alginate, tannic acid, and tea tree oil, effectively delays deterioration. It rapidly cross-links via hydrogen bonding within 15 s, forming a protective coating that envelops the fruit surface. This biocompatible film significantly enhances physicochemical properties, antioxidant capacity (with 2% TOCA-TA showing DPPH and ABTS radical scavenging rates of >74% and > 84%, respectively), and antibacterial activity (2%–4% TOCA produces inhibition zones of 15.1–23.9 mm against Escherichia coli (E.coli) and 17.1–26.8 mm against Staphylococcus aureus (S. aureus ). It shields against mechanical damage, maintains freshness, reduces dehydration and flavor loss, inhibits microbes, and extends shelf life to seven days. Easy to clean, it ensures a smooth strawberry surface. These findings highlight this polyphenol-induced polysaccharide film as an economical, green strategy for improving perishable food quality and safety.
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