BIORESOURCE TECHNOLOGY
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2025
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IF 9
Zebing Xiao,Yutong Xiong,Yonghua Zhang,Xiaoyun Li,Yixiang Wang,Xiaoying Wang
Bamboo pulp fines (BPF) are defined as bamboo pulp waste. BPF, including fine fibers and abundant non-fibrous cells, are detrimental to the performance of paper and are usually regarded as waste and discarded. In this work, inspired by the loose structure of non-fibrous cell walls in bamboo, a mild method for converting BPF into CNFs was developed. By leveraging the loose structure of BPF, high-density surface carboxyl groups were introduced via low-toxic (relatively less hazardous than nitro-based oxidants) maleic anhydride (MAH) esterification reactions, significantly enhancing dispersibility and interfacial compatibility. Combined with gentle mechanical disintegration, successfully resulting in CNFs (M−CNFs) with a diameter of approximately 2.6 nm, an aspect ratio exceeding 1000, a carboxyl content of 1.45 mmol/g, and a yield of approximately 98%. Furthermore, M−CNF−based nanofilms exhibited exceptional mechanical properties, achieving 107 MPa tensile strength with unique stress-dispersion mechanisms. The resulting M−CNFs serve as sustainable building blocks for multidimensional advanced cellulose materials and emulsion stabilizers. This method-produced M−CNFs offer advantages including ultrahigh aspect ratios, colloidal stability, high yield, and significant application potential, establishing a high-value valorization route for bamboo pulp waste.
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CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Nan Li,Le Yang,Xingxiang Ji,Wei Chen
Flexible piezoresistive sensors are crucial for wearable electronics. Conventional approaches predominantly enhance sensitivity and detection range through innovations in conductive materials, sensor substrates, or sophisticated microstructure engineering. This study presents a novel approach using commercial band-aid as multifunctional piezoresistive sensor substrates, utilizing their inherent structural properties. This substrate is functionalized through immersion into a multi-walled carbon nanotubes (MWCNT) and cellulose nanofibers (CNFs) composite dispersion, forming a nanoscale conductive film while preserves the native microscale patterns. These patterns amplify localized pressure responses, thereby enhancing sensitivity. Simultaneously, the conductive band-aid is assembled into a millimeter-scale arched architecture that optimizes the sensitivity-range trade off: under low stress, the minimal initial contact area optimizes sensitivity, while the arch design stabilizes large deformations, extending the measurable pressure range. This cross-scale integration synergizes stress redistribution and dynamic conductive pathway adjustments, enhancing contact area homogeneity under pressure. The resultant sensor demonstrates exceptional performance including high sensitivity (66.8 kPa −1 ), broad detection range (0–219.2 kPa), rapid response/recovery times (1 ms/4 ms), exceptional durability (10,000 cycles), and ultra-low detection limit (7 Pa). Moreover, the methodology addresses scalability and cost barriers by utilizing mass-produced, biocompatible band-aids as off-the-shelf substrates, bypassing complex and costly nanofabrication processes. By harmonizing material accessibility, structural ingenuity, and multi-functional sensing performance, this approach not only resolves enduring trade-offs between sensitivity, range, and durability in wearable sensor design but also establishes a scalable platform for next-generation epidermal electronics.
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Nature Communications
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2025
·Vol. 16
·期 1
·10501
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IF 15.7
Zhu Qiong,Su Jingjing,Lin Guoan,Li Guisheng,Zhuo Zhiwen,Wang Weiyi,Li Jialin,Xu Xiaoxiang
Photocatalytic oxygen reduction reaction (ORR) represents a green and cost-effective means to produce the high-value industrial compound H 2 O 2 . However, the efficient H 2 O 2 synthesis awaits in-depth knowledge of the ORR mechanisms for the design of highly active photocatalysts. In this work, surface indium vacancies (denote hereafter as V In ) have been introduced into In 2 S 3 , which significantly boosts the photocatalytic activity for H 2 O 2 production, with an optimal H 2 O 2 generation rate of 4.77 ± 0.05 mmol·h −1 ·g cat. −1 under visible light illumination (λ ≥ 420 nm) and an apparent quantum efficiency (AQE) of 7.49 ± 0.01% at 420 ± 20 nm. Mechanistic analysis reveals the multifunctionality of V In , such as enlarging the chemisorption capacity of O 2 , enriching photo-generated electrons for ORR, endorsing high reducing power to photo-generated electrons, and promoting H 2 O 2 desorption. These findings justify that surface cation vacancies open up new possibilities for H 2 O 2 photosynthesis by leveraging their reaction dimensions in ORR.
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Acta Biomaterialia
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2025
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IF 9.6
Bing Wu,Ye Yang,Xiancheng Huang,Yuanchao Shi,Chongzhou Fang,Fei Liu,Yang-Chi-Dung Lin,Jiaxin Wang,Jianjing Lin,Jing Mu,Xintao Zhang
Osteoarthritis (OA) is a progressive degenerative joint disease characterized by synovial inflammation and cartilage degradation, and its progression is closely related to excessive production of reactive oxygen species (ROS) and upregulation of catabolic enzymes such as matrix metalloproteinases. Here, we developed a self-assembled multifunctional polymeric nanoparticle (NP) system for the co-delivery the ROS scavenger 2,2,6,6-Tetramethylpiperidoxyl (TEMPO) and small interfering RNA (siRNA) against MMP-13 (siMMP-13). The nanoplatform is constructed from antioxidant TEMPO-PEG-PLGA and cationic PEG-PLGA-OA9 to enable efficient siRNA encapsulation and intra-articular delivery. TEMPO mimics superoxide dismutase to neutralize ROS, while siMMP-13 silences catabolic gene expression to suppress cartilage degradation. This redox- and gene-regulatory NP system demonstrated potent anti-inflammatory and cartilage-protective effects in vitro and in vivo , effectively attenuating cartilage damage and inflammation in Osteoarthritis. This work presents a promising and translational approach to Osteoarthritis treatment via integrated redox and gene regulation strategies. Statement of Significance Osteoarthritis (OA) remains a major clinical challenge due to its complex and multifactorial pathogenesis, which current palliative therapies fail to adequately address. This study presents a novel, multifunctional therapeutic strategy that concurrently targets two critical pathological features of OA—oxidative stress and extracellular matrix degradation—through the co-delivery of a reactive oxygen species (ROS) scavenger (TEMPO) and MMP-13–targeting siRNA via a self-assembled polymeric nanoparticle system. By integrating redox modulation and gene silencing within a single nanoplatform, this approach enables precise regulation of inflammatory and catabolic pathways, thereby enhancing therapeutic efficacy and cartilage preservation. The findings offer a promising foundation for the development of next-generation disease-modifying OA therapies with strong potential for clinical translation.
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CARBOHYDRATE POLYMERS
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2012
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IF 3.628
Xinwang Cao,Xianfeng Wang,Bin Ding,Jianyong Yu,Gang Sun
Cellulose nanowhiskers as a kind of renewable and biocompatible nanomaterials evoke much interest because of its versatility in various applications. Herein, for the first time, a novel controllable fabrication of spider-web-like nanoporous networks based on jute cellulose nanowhiskers (JCNs) deposited on the electrospun (ES) nanofibrous membrane by simple directly immersion-drying method is reported. Jute cellulose nanowhiskers were extracted from jute fibers with a high yield (over 80%) via a 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO)/NaBr/NaClO system selective oxidization combined with mechanical homogenization. The morphology of JCNs nanoporous networks/ES nanofibrous membrane architecture, including coverage rate, pore-width and layer-by-layer packing structure of the nanoporous networks, can be finely controlled by regulating the JCNs dispersions properties and drying conditions. The versatile nanoporous network composites based on jute cellulose nanowhiskers with ultrathin diameters (3–10 nm) and nanofibrous membrane supports with diameters of 100–300 nm, would be particularly useful for filter applications.
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Nature Communications
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2025
·Vol. 16
·期 1
·1-10
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IF 15.7
Yang Huai-Bin,Lu Yi-Xing,Yue Xin,Liu Zhao-Xiang,Sun Wen-Bin,Zheng Wen-Pei,Guan Qing-Fang,Yu Shu-Hong
The overall structural integrity plays a vital role in the unique performance of living organisms, but the integral synchronous preparation of different multiscale architectures remains challenging. Inspired by the cuttlebone’s rigid cavity-wall structure with excellent energy absorption, we develop a robust hierarchical predesigned hydrogel assembly strategy to integrally synchronously assemble multiple organic and inorganic micro-nano building blocks to different structures. The two types of predesigned hydrogels, combined with hydrogen, covalent bonding, and electrostatic interactions, are layer-by-layer assembled into brick-and-mortar structures and close-packed rigid micro hollow structures in a cuttlebone-inspired structural material, respectively. The cuttlebone-inspired structural materials gain crack growth resistance, high strength, and energy absorption characteristics beyond typical energy-absorbing materials with similar densities. This hierarchical hydrogel integral synchronous assembly strategy is promising for the integrated fabrication guidance of bioinspired structural materials with multiple different micro-nano architectures.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2025
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IF 6.3
Yuqi Sun,Amatjan Sawut,Rena Simayi,Xixi Huang
Though advanced oxidation technologies show promise for water purification, they face challenges. Photocatalysts struggle with recoverability and environmental adaptability, while the Fenton process is limited by the finite cycling of Fe species, low H 2 O 2 utilization, and strict acidic pH requirements. Based on the above issues, this paper developed a novel FeOCl-loaded hydroxypropyl methylcellulose/polyacrylamide (HPMC/PAM) composite hydrogel (FeOCl/HPMC/PAM) is developed as an efficient photo-Fenton-like catalyst. The FeOCl/HPMC/PAM composite system exhibits complex degradation kinetics (zero-order reaction with 5–50 μL hydrogen peroxide solution, first-order reaction with 100 μL hydrogen peroxide solution) and demonstrates highly efficient degradation performance across a broad pH range (1–7). Under pH= 7, it achieves 93.47 % methylene blue (MB) degradation within 60 min via an adsorption-degradation synergistic mechanism. After six cycles, it retains 75 % activity, showing favorable reusability. The cyclic stability test shows that it still retains 75 % of the degradation efficiency after 6 consecutive cycles, confirming its reliable reusability. Meanwhile, the iron leaching rate of the composite material during the reaction is only 0.061 mg/L, confirming its structural stability and environmental safety. With low cost, easy recovery, and wide pH adaptability, this composite hydrogel exhibits potential as a commercially viable system for organic pollutant removal from real water matrices.
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Journal of Water Process Engineering
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2025
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IF 6.7
Yongxiu Song,Shifei Kang,Mingzhu Huang,Youduo Wu,Yuyang Lv,Chuang Xue
The generation of hydroperoxyl radical ( OOH) radicals is an important issue and has significant value in the highly selective removal of pollutants in complex water environment. However, the metal active center catalysts frequently encounter the limited surface site type and energy level mismatch, making it difficult to maintain a stable supply of OOH. Therefore, a novel photocatalytic self-Fenton system based on metal-free g-C 3 N 4 /chitosan (g-C 3 N 4 /CS) catalyst was developed to achieve excellent efficiency in the removal of tetracycline, bisphenol A and 2,4-dichlorophenol across a broad pH range (3.14–9.04), superior the conventional Fenton system which only works at pH 3–5. Chitosan modification enhanced the charge separation and transfer efficiency of the S-scheme charge transfer pathway, optimized the formation of OOH, O 2 − , h + , enhancing the selective generation and stable supply of OOH radical with a high ratio of 33 %, led to the efficiency removal of pollutants. Further mechanistic analysis demonstrated the unique dominance of the desired OOH radicals. g-C 3 N 4 /CS catalyst exhibited excellent stability and reusability by the cycling experiments, suggesting durable OOH supplying. This work offers novel insights into g-C 3 N 4 based metal-free catalyst with special radical features through chitosan modification, demonstrating the potential for industrial applications of OOH dominated g-C 3 N 4 /CS self-Fenton system in wastewater treatment.
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Journal of Materials Chemistry C
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2025
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IF 5.1
Jingyu Du,Daohai Zhang,Yuhuan Xu,Xiao Zhan,Shuhao Qin
With the increasing global energy demand, water-based zinc ion batteries have received widespread attention. However, the growth of zinc dendrites and the occurrence of side reactions on the surface of zinc electrodes can affect the capacity of zinc ion batteries, hindering their practical application. This study reports a multifunctional dendrite-free gel electrolyte prepared by introducing carboxyl modified nanocellulose (C-CNFs) into a polyvinyl alcohol (PVA) based gel electrolyte. At the same time, we also add the antifreeze agent dimethyl sulfoxide (DMSO) to it, which greatly improves the low-temperature performance of gel electrolytes. The rich functional groups on the surface of C-CNFs can effectively adjust the continuous movement of PVA and improve the mechanical strength of the gel electrolyte, and at the same time, they can effectively absorb zinc ions, enable uniform distribution of zinc ions in the electrolyte, reduce the interface concentration gradient, and reduce the occurrence of side reactions, so that the zinc ion deposition is more uniform, and dendrite free deposition is achieved. The polyaniline zinc ion battery assembled with this electrolyte can stably cycle over 3000 times at room temperature, with a capacity retention rate of 83.23%. At −20 °C, the capacity retention rate reaches 60% after 1200 cycles.
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JOURNAL OF CATALYSIS
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2025
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IF 6.5
Zong-Pin Fu,Qi-Jie Zhou,Yun-Peng Zhao,Yu-Fa Wu,Fang-Jing Liu,Mei Zhong,Jian Li,Jing Liang,Jing-Pei Cao
The abundant bridging bonds and side chains in lignin make the selective cleavage of its C-O bonds a promising approach for achieving efficient conversion. Herein, Cu/CoOx-CeO 2 catalysts were prepared and the effects of their physical and chemical structures on C-O bond hydrogenolysis activity were investigated. The results indicated that incorporating an appropriate amount of CeO 2 as a support facilitated the doping of Co n+ cations into the CeO 2 lattice, enhancing oxygen vacancy concentration. Additionally, the Cu K-edge X-ray absorption near-edge structure (XANES) spectra revealed that Cu exists in a mixed valence state (Cu δ+ , 0 < δ < 2) within the catalyst. Reaction pathway regulation was achieved through strategic modulation of reaction conditions. When isopropanol was used as the solvent under a N 2 atmosphere, 2-phenoxy-1-phenylethanol (2-PPE-ol) was completely converted at 180 °C within 2 h, yielding ethylbenzene and cyclohexanol with 100 % selectivity. Conversely, when n -hexane was employed as the solvent, dehydrogenation of the C α -OH group generated hydrogen radicals, which promoted cleavage of the C β -O bond in the β-O-4 ketone intermediate, resulting in phenol and 1-phenylethanol with 100 % selectivity. Isotopic labeling and active hydrogen tracking experiments revealed that the active hydrogen in catalyst transfer hydrogenolysis (CTH) originated from the solvent, whereas self-hydrogen-transfer hydrogenolysis (SHTH) relied on hydrogen derived from the C α -OH group of 2-PPE-ol. This work provides valuable insights into the directional conversion of lignin into high-value chemicals and efficient energy utilization.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2024
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IF 7.7
Xuanxuan Huang,Rui Huang,Qian Zhang,Jinlong Fan,Zhaohong Zhang,Jintian Huang
UV protection has become crucial as increasing environmental pollution has led to the destruction of the ozone layer, which has a weakened ability to block UV rays. In this paper, we successfully prepared cellulose-based biomass films with high UV shielding effect, high transparency and high tensile strength by graft-modifying oxidized cellulose nanocellulose (TOCN) with folic acid (FA) and borrowing vacuum-assisted filtration. The films had tunable UV shielding properties depending on the amount of FA added. When the FA addition was 20 % ( V /V), the film showed 0 % transmittance in the UV region (200–400 nm) and 90.61 % transmittance in the visible region (600 nm), while the tensile strength was up to 150.04 MPa. This study provides a new integrated process for the value-added utilization of nanocellulose and a new route for the production of functional biomass packaging materials. The film is expected to be applied in the field of food packaging with UV shielding.
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Nano Materials Science
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2025
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IF 17.9
Diwen Jiang,Guoliang Liu,Haowen Zhang,Zhesheng Feng,Fanbin Meng,Yan Wang
Despite the potential of MXene-based textiles for wearable devices, their oxidative instability and weak interfacial adhesion hinder practical applications. In this study, a nickel-ion-assisted MXene@caffeic acid (MXene@CA, MC) composite dispersion was deposited onto carboxyl-aminated cotton fabric (CPCF) via dip-coating to fabricate a multifunctional composite textile (CPCF-Ni-MC). The presence of CA limits the oxidative degradation of MXene, ensuring the surface chemical activity of the MXene nanosheets. The nickel ions enhance the stability and quantity of the deposited dispersion on the fabric through covalent bonds and electrostatic interactions. The CPCF-Ni-MC composite fabric not only retains the original fabric’s excellent breathability, moisture permeability, washability, and flexibility but also exhibits superior electrical conductivity (289.18 S cm −1 ) and electromagnetic interference shielding effectiveness (66.8 dB). Furthermore, its rapid joule heating (reaching 112.1 °C within 49 s at 3.5 V) and ultralow infrared emissivity (0.21) enable adaptive thermal management. Additionally, the textile demonstrates exceptional environmental resistance with hydrophobic, flame-retardant properties, and UV-blocking capability (transmission rates <0.01 in the UVA and UVB regions). By achieving these diverse functionalities within a single textile through a low-cost and scalable manufacturing approach, CPCF-Ni-MC presents novel perspectives and strategies for the preparation of stable integrated multifunctional wearable devices.
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