INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2024
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IF 7.7
Yuming Lin,Nian Xiang,Min Peng,Zuzeng Qin,Tongming Su,Hongbing Ji,Xinling Xie
Conductive hydrogels are utilized in flexible sensors due to their high-water content, excellent elasticity, and shape controllability. However, the sharp increase in resistance of this material under enormous strain leads to instability in the sensing process. This study presents a straightforward method for creating a stable, recyclable, hybrid ionic-electronic conductive (HIEC) hydrogel via a simple one-pot strategy using polyvinyl alcohol (PVA), bagasse cellulose nanofibrils (CNF), and graphene(G) with sodium dodecylbenzene sulfonate (SDBS). The SDBS/G hemimicelles are formed through hydrophobic and π-π stacking interactions between SDBS and G, enhancing the dispersibility of G. Then SDBS/G hemimicelles were integrated into a non-covalent cross-linking network from CNF and PVA, which ensures recyclability and stability. The CNF-PVA-Graphene (CPG) hydrogel exhibited high and stable sensing sensitivity (average gauge factor up to 1.99), high conductivity (0.36 S/m), low graphene concentration (0.16 wt %), low detection limit (1 %), and fast response time (0.17 s). The sensor can detect large (wrist and knee) and small (pulse and laryngeal prominence) body movements. After recycling, the hydrogel sensors maintained high conductivity sensitivity (average gauge factor up to 1.01) and good tensile properties (360 % strain). This study introduces a new approach of hybrid conductive biomass-based hydrogel sensors for precisely monitoring human movements.
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ACS Nano
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2024
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IF 15.8
Yinjun Tang,Xupeng Liu,Pengcheng Qi,Yujia Cai,Hengjia Wang,Ying Qin,Wenling Gu,Canglong Wang,Yao Sun,Chengzhou Zhu
Phosphates within tumors function as key biomolecules, playing a significant role in sustaining the viability of tumors. To disturb the homeostasis of cancer cells, regulating phosphate within the organism proves to be an effective strategy. Herein, we report single-atom Ce-doped Pt hydrides (Ce/Pt–H) with high phosphatase-like activity for phosphate hydrolysis. The resultant Ce/Pt–H exhibits a 26.90- and 6.25-fold increase in phosphatase-like activity in comparison to Ce/Pt and Pt–H, respectively. Mechanism investigations elucidate that the Ce Lewis acid site facilitates the coordination with phosphate groups, while the surface hydrides enhance the electron density of Pt for promoting catalytic ability in H2O cleavage and subsequent nucleophilic attack of hydroxyl groups. Finally, by leveraging its phosphatase-like activity, Ce/Pt–H can effectively regulate intracellular phosphates to disrupt redox homeostasis and amplify oxidative stress within cancer cells, ultimately leading to tumor apoptosis. This work provides fresh insights into noble-metal-based phosphatase mimics for inducing tumor apoptosis.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2024
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IF 7.7
Lu Tang,Bo Wang,Shiru Bai,Bei Fan,Zhongxing Zhang,Liang Zhang,Fengzhong Wang
The development of functional dressings based on natural polysaccharide-based hydrogels remains a great challenge, and the specific roles of gel composition and drug-controlled release mechanisms were unclear. In this study, oxidized soybean cellulose nanocrystals (CNCs)/poly-acrylamide (PAM) hydrogel was prepared. The proportion of CNCs, crosslinkers, and water in the system was regulated to fine-tune the rheological performances, texture properties, transparency, and micro-network structures of CNCs/PAM hydrogel, and further explored its application potential in the field of wound dressings. It was found that CNCs improved the rigidity and adhesion of hydrogels, crosslinkers improved the network density, and water promoted the softening and fluidity of hydrogels. The effective filling of CNCs in the composite hydrogel was verified by FTIR, XRD, and NMR. Furthermore, the pH responsiveness and drug-loading potential of the smart hydrogel were tested by swelling and drug-controlled release experiments, elucidating drug-release dynamic mechanisms during the wound healing process. The inhibition zones (>7 mm) of gram-positive/negative bacteria and cell viability (>100 %) assay showed satisfactory biocompatibility, as the hydrogel effectively accelerated wound healing in a wound model. These results elucidated the regulation mechanism of the structures of CNCs/PAM hydrogel and revealed the application potential of CNCs/PAM hydrogel in wound dressings.
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ACS Applied Materials & Interfaces
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2024
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IF 8.3
Xin Yang,Yuxiang Du,Pengjie Jiang,Rui Fu,Lipeng Liu,Changqing Miao,Rongrong Xie,Yinghui Liu,Yaxiong Wang,Huazheng Sai
Aerogel fibers are good thermal insulators, suitable for weaving, and show potential as the next generation of intelligent textiles that can effectively reduce heat consumption for personal thermal management. However, the production of continuous aerogel fibers from biomass with sufficient strength and radial elasticity remains a significant challenge. Herein, continuous gel fibers were produced via wet spinning using agarose (AG) as the matrix, 2,2,2,6,6-tetramethylpiperidine-1-oxyl radical-oxidized cellulose nanofibers (TOCNs) as the reinforcing agent, and no other chemical additives by utilizing the gelling properties of AG. Supercritical drying and chemical vapor deposition (CVD) were then used to produce hydrophobic AG-TOCN aerogel fibers (HATAFs). During CVD, the HATAF gel skeleton was covered with an isostructural silica coating. Consequently, the HATAFs can recover from radial compression under 60% strain. Moreover, the HATAFs have low densities (≤0.14 g cm–3), high porosities (≥91.8%), high specific surface areas (≥188 m2 g–1), moderate tensile strengths (≤1.75 MPa), excellent hydrophobicity (water contact angles of >130°), and good thermal insulating properties at different temperatures. Thus, HATAFs are expected to become a new generation of materials for efficient personal thermal management.
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Journal of Water Process Engineering
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2025
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IF 6.7
Yue He,Shuang Xiao,Jiabin Zhou,Dan Liu,Zhipu Wang
A novel CuO x /Fe 2 O 3 composite catalyst was synthesized by a hydrothermal method and systematically evaluated for its peroxomonosulfate (PMS) activation capability under visible light irradiation, using tetracycline hydrochloride (TC-HCl) as the model pollutant. The results demonstrated that the CuO x /Fe 2 O 3 catalyst exhibited excellent catalytic oxidation performance, achieving 92.1 % TC-HCl degradation within 30 min through the generation of multiple reactive oxygen species (ROS) under visible light, including superoxide radicals (•O 2 − ), sulfate radicals (•SO 4 − ), hydroxyl radicals (•OH) and singlet oxygen ( 1 O 2 ). The mechanistic studies revealed that synergistic interaction between Fe and Cu bimetallic components significantly enhanced PMS activation efficiency, generating more reactive species and thereby increasing the degradation rate of TC-HCl. In addition, the CuO x /Fe 2 O 3 /PMS/vis system effectively degraded different pollutants (including Ciprofloxacin, Phenol, and Rhodamine B) and showed good tolerance to humic acid (HA) and salinity, among others. These findings highlight the practical potential of the CuO x /Fe 2 O 3 /PMS/vis oxidation system for the removal of organic pollutants in wastewater treatment field.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2025
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IF 6.3
Fengping Yang,Dengsheng Zheng,Libin Zhang,Jiamin Yuan,Liliang Wang,Min Long,Yanzhen Yin,Ke Sun,Cong Liu,Hongxiang Zhu,Tao Liu
The emergence of antibiotic-resistant superbugs has heightened concerns about environmental pollutants such as tetracycline hydrochloride, necessitating effective removal strategies. Among various treatment approaches, interfacial modification means to realize efficient pollutant removal is an ideal method. In this study, a breakthrough in photocatalytic technology was achieved by developing a novel material that combines excellent adsorption capacity with enhanced photocatalytic performance. The innovation lies in our pioneering implementation of a third-component doping strategy, which enabled the construction of an organic semiconductor intrinsic heterojunction photocatalytic layer with an A-D-A structure, integrated onto a natural biomass carbon substrate. This strategic integration creates a synergistic system wherein the natural biomass carbon component rapidly concentrates pollutants, while the organic semiconductor bulk heterojunction photocatalytic layer generates electrons and free radicals for degradation. The material's exceptional performance is evidenced by its ability to completely degrade 20 mg/L of tetracycline hydrochloride within 30 min, establishing a new benchmark in treatment efficiency. Through density-functional theory (DFT) analysis, we have elucidated the underlying degradation mechanism, providing theoretical insights that may facilitate the development of advanced treatment solutions for a broader spectrum of organic pollutants through adsorption photocatalysis.
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JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
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2025
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IF 6.2
Hongliang Li,Shida Wu,Jiale Ma,Kuiyou Wang,Mingqian Tan,Haitao Wang
Paramylon (EP) is a type of β-glucan found in Euglena gracilis, which is characterized by a crystalline structure and insolubility, thereby limiting its practical applications. This study aimed to enhance its utility by preparing water-soluble oxidized EP (OEP) using a 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO)-mediated oxidation process. When compared with EP, OEP was found to boost glucose intake in insulin-resistant cells while increasing insulin receptor substrate 1 (IRS1) and glucose transporter 4 (GLUT4) levels. OEP effectively reduced fasting blood glucose levels in diabetic mice from 13.41 to 8.86 mmol L–1. OEP protected the liver from damage by enhancing hepatic glucose absorption through modulation of the IRS1/GLUT4 signaling pathway. OEP adjusted hepatic lipid composition, reducing the accumulation of diglycerides and triglycerides, ultimately ameliorating diabetes. Therefore, the OEP demonstrates significant potential as a nutritional substance for regulating blood glucose levels.
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PROGRESS IN ORGANIC COATINGS
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2025
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IF 7.3
Yanyi Duan,Jiangjiexing Wu,Aihua Qiao,Xin Guo,Xiaotian Ge,Wei Qi,Anastasia Penkova,Rongxin Su
Marine optical devices face significant biofouling challenges, which compromise their transparency and disrupt their functionality. Existing coatings, typically relying on toxic biocides or dynamic surfaces, harm the marine environment and fail to meet the signal stability required for high-performance equipment. In this study, we introduce a fully bio-based approach to transparent antifouling coatings by developing zwitterionic cellulose nanofibers (ZCNF) modified with lysine, arginine, and histidine. Notably, this innovative modification exhibits enhanced hydrophilicity and antifouling properties compared to unmodified cellulose nanofibers, while also forming a stable antifouling surface, overcoming the key limitations of conventional materials. Laboratory and marine field tests demonstrate the remarkable long-term performance of ZCNF coatings, achieving up to 90 % antifouling efficiency in controlled environments and 80 % in real-world conditions after 150 days. This work provides a sustainable alternative for marine optical coatings, advancing the application of bio-based nanomaterials to address real-world marine challenges.
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MACROMOLECULES
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2025
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IF 5.2
Ronghao Li,Junping Zheng
Despite the solution of the recycling difficulty of traditional thermosetting polymers including polydimethylsiloxane (PDMS) with the development of vitrimers, addressing the trade-off among the mechanical, reprocessing, and thermal properties of PDMS remains a scientific challenge. Herein, a novel “one-stone-for-three-birds” structural design strategy based on the triple effects of Fe3+ including coordination cross-linking for reinforcement and toughening, catalytic effect on silyl ether exchange for reprocessing, and free radical quenching for thermal stabilization is reported, realizing the integration of mechanical robustness, reprocessability, and unprecedentedly high thermal stability in PDMS for the first time. The PDMS vitrimer in this work exhibits the highest thermal stability among the reported PDMS vitrimers, comparable to commercial PDMS. To elucidate the intrinsic mechanisms of the triple effects of Fe3+ in PDMS, multiple characterizations have been performed from the microscopic structure to the macroscopic mechanical, reprocessing, and thermal performances both theoretically and experimentally.
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FOOD CHEMISTRY
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2025
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IF 9.8
Qing Meng,Tao Wang,Siting Li,Hangyu Xie,Honghong Tian,Min Wu,Xueping Song
The dispersion form of Pickering emulsions in the film-forming emulsion dominates the structure and property of films. In this study, the dispersion of oregano essential oil (OEO) Pickering emulsion in the cellulose nanofiber (CNF) were regulated to construct the smart antibacterial packaging films. The emulsion droplets rapidly layered and uniformly aggregated at the top of the film-forming emulsion (CNF 0–0.001 wt%), showed layered form. The droplets flocculated and aggregated through the depletion flocculation of the CNF (0.005–0.1 wt%), showed depletion flocculation form. The emulsion stabilized through depletion stabilization of CNF (0.2 wt%), the droplets distributed uniformly and the particle size increased, showed depletion stabilization form. The film-forming emulsion (CNF 0.3–0.8 wt%) gelled, showed gel stabilization form. The emulsion droplets formed core-shell microcapsules in the Packaging films and the films responded the stimulation of pH to smart control OEO release, and had good barrier and mechanical properties, showing the attractive application prospect in food preservation.
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FOOD CHEMISTRY
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2025
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IF 9.8
Huajian Ou,Lu Chen,Qiaohui Zeng,Zhiyun Peng,Zihao Lin,Ping Qi,Konglong Feng,Jing Jing Wang
A 5-aminolevulinic acid (ALA)-grafted chitin film (O-CT/ALA film) with a photodynamic inactivation (PDI) against bacteria was previously fabricated, and its preservation efficiency and mechanisms against salmon were explored. Results showed that the PDI-mediated O-CT/ALA film exhibited sustained generation capability of ROS, which had potent antibacterial activity in vitro under blue LED irradiation. Moreover, this film significantly inactivated the native bacteria and suppressed their growth in salmon fillets during storage at 4 °C and 25 °C, extending the shelf-life by >2 days compared to commercial polyethylene film. Consequently, the O-CT/ALA film retained the textural integrity of salmon muscle, stabilized the physicochemical properties of pH value, electrical conductivity, color appearance, and reduced the level of protein and lipid oxidation. Notably, it obviously reduced the accumulation of microbial metabolites and oxidation-related volatile compounds in salmon. Therefore, the PDI-mediated film shows a valid ability in preserving the storage quality of aquatic products.
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Journal of Materials Chemistry A
·
2025
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IF 9.5
Jiani Yang,Chao Xiong,Mi Zhou,Xianglin Luo,Xikui Liu,Chong Cheng,Chao He,Xiaohui Xu
Considering the intrinsic limitations of natural enzymes, the development of efficient, cost-effective artificial enzyme alternatives has become imperative. Covalent metal-organic frameworks (CMOFs), as a new type of open framework materials with precise crystalline structures, clear metal catalytic sites, ordered pores and strong designability, can be considered as an ideal platform to develop efficient artificial enzyme materials. Here, we report two distinct enzyme-mimetic CMOFs, Tbpa-Ag3 and Tbpa-Cu3, which featured cyclic trinuclear metal clusters (Ag3/Cu3) as functional nodes respectively. Among the two CMOFs, Tbpa-Ag3 achieved precise spatial integration of photoactive Tbpa ligands with catalytic Ag3 clusters, establishing a more efficient electron transfer pathway that delivered superior oxidase-like activity under visible-light irradiation. Based on Tbpa-Ag3, we engineered a biomarker detection platform for physiological antioxidants (L-Cysteine and GSH) and a sustainable photocatalytic system for benzylamine oxidative coupling (yield > 99%, 4 h), validating Tbpa-Ag3’s dual functionality in analytical chemistry and green catalysis.
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