Cell Reports Physical Science
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2024
·
IF 7.9
Wei-Ming Yin,Ben Dang,Yuanyuan Miao,Shujun Li,Jian Li,Shouxin Liu,Tony D. James,Zhijun Chen
Producing room temperature phosphorescent materials from natural sources is essential for sustainability. However, either toxic chemical reagents or complicated processing is still required to produce such phosphorescent materials derived from natural resources. Here, we produce sustainable room temperature phosphorescence (RTP) materials from wood and sugar. Specifically, sugar is introduced into a wood matrix, which confines the lignin in the wood matrix in situ . As a result, the treated wood (sucrose wood [S-wood]) exhibited RTP emissions with a lifetime of ∼284.4 ms. Life cycle carbon analysis indicates that ∼8.1–11.2 kg CO 2 is produced during the preparation of S-wood, which is lower than for other similar materials. Moreover, the S-wood could be naturally degraded in the soil over 40 days. As a demonstration of the practical potential, S-wood is used for visual decorations and anti-counterfeiting applications.
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Surfaces and Interfaces
·
2025
·
IF 6.3
Yuanyuan Feng,Bin Xu,Zhiqing Tian,Shuang Zhao,Hongyu Liu,Bingli Pan,Jiaxing Li,Rama Layek
The effective storage and delivery of lubricating oils within polymeric materials is crucial for enhancing their tribological performances. In this study, hollow Juncus effusus (JE) fibers with a diameter of 2.14 mm were employed as efficient carriers of paraffin wax (PW) in the epoxy resin (EP) matrix. The microstructure, morphology, and mechanical properties of the resulting epoxy resin/ Juncus effusus /paraffin wax (EP/JE/PW) composites were systematically characterized. Furthermore, the influence of PW content on the tribological performances of EP/JE/PW composites was studied. The results revealed that the average friction coefficient of the EP/JE/PW (1:20) was 0.19, and the wear rate was 6.06 × 10⁻ 5 mm 3 /N·m. Compared to pure EP, the composite exhibited an 80 % reduction in friction coefficient and an 88.02 % reduction in wear rate due to the solid-liquid dual lubrication mechanism. We report the use of biomass JE fibers for the effective storage and delivery of PW to enhance the tribological performances of EP for the first time. This study offers new insights into efficient oil storage and intelligent oil delivery in polymeric matrices using biomass-based JE fibers as an oil carrier and oil transport pathway.
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BIOMATERIALS
·
2025
·
IF 12.9
Hong Wang,Cong Xu,Hanfeng Qin,Yalin He,Yunshi Li,Yuejun Jiang,Junbin Gao,Ziwei Hu,Lu Liu,Jiamiao Jiang,Bin Chen,Fei Peng,Yingjia Li,Yingfeng Tu
Osteoarthritis (OA) is a multifactorial joint disorder characterized by articular cartilage degradation and progressive synovial inflammation. The dense and avascular nature of cartilage hinders the delivery efficiency of nanocarriers to their target cells, resulting in limited therapeutic efficacy in clinical trials. Here, we report the design of a Piezo-MnO 2 motor for in situ reestablishment of the articular microenvironment by effectively degrading the local excess hydrogen peroxide in the OA microenvironment into oxygen. The generated oxygen ameliorates hypoxic conditions and acts as a propellant for nanomotor actuation, thereby enabling the motor to penetrate deeply into cartilage and synovium. Under mechanical stress induced by ultrasonic vibration, Piezo-MnO 2 motors efficiently produced electrical signals via piezoelectric effect. This initiates an influx of extracellular calcium ions, which further upregulates the expression of transforming growth factors and drives cartilage repair. Recognized for its anti-inflammatory and antioxidant properties, the hydrogen produced by ultrasonic piezoelectric effect of the motors significantly diminishes the level of pro-inflammatory cytokines. The developed strategy facilitates rapid in situ cartilage regeneration and articular microenvironment modulation, offering a transformative alternative to conventional OA interventions.
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PubMed
高影响因子
ACS Nano
·
2025
·
IF 16
Zhijie Zhao,Yingying Meng,Yao Shu,Yunfeng Yi,Junjie Li,Yuping Wei
The bone fixation implants in the clinic are prone to inflammation and thrombosis that result in efficacy and patient health risks. This paper introduces chitosan microsphere-enhanced poly(sulfobetaine) (CSM/PSBMA) zwitterionic hydrogel coated on the surface of polylactic acid (PLA) fracture fixation devices through interfacial autocatalytic polymerization and in situ gelation. CSM as a disperse phase improves both the mechanical strength and swelling resistance of the PSBMA matrix of the continuous phase. The CSM/PSBMA hydrogel coating keeps the superhydrophilicity and excellent antifouling properties of the pure PSBMA hydrogel coating. In particular, the CSM/PSBMA hydrogel coating still exhibits good stability after 30 days of PBS immersion, 7 days of PBS shearing, 30 min of PBS ultrasonication, and 30 min of water flushing. Furthermore, the CSM/PSBMA hydrogel-coated PLA implants can alleviate foreign body reaction and accelerate the bone repair in the rat femoral fracture model. This brings a promising path for devising zwitterionic hydrogel coatings for implantable medical devices.
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COMPOSITES PART B-ENGINEERING
·
2025
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IF 14.2
Hongyuan Guo,Qiao Lu,Weicheng Jiao,Xingwen Yuan,Shuxin Ren,Haomiao Sun,Xiaodong He
Phase change materials (PCMs) exhibit high energy density, reversibility, and broad temperature selectivity. Unfortunately, the inherent trade-off between functionality and mechanical strength inevitably arises during application, necessitating the breakthrough of the thermal-mechanical-functional coupling bottleneck to establish an efficient thermal storage system. This work innovatively designs a multi-dimensional composite PCMs based on supramolecular polymers and graphene-encapsulated paraffin microspheres, achieving cross-scale synergy between thermal conduction networks, energy storage units, mechanical support structures, and functional design. The multi-level strong-weak hydrogen bond interactions within the supramolecular construct a physically cross-linked framework that combines toughness and stability, while paraffin-graphene microspheres enhance energy storage density. The three-dimensional thermally conductive and electrically conductive framework endows PCMs with photo/electro-thermal energy conversion and response capabilities. Simultaneously achieving high phase change enthalpy (190.2 J g −1 ), ultra-low leakage rate (<0.47 wt%), and high strength ranging from 16.0 to 29.6 MPa, with programmable shape memory and recyclable molding capabilities, overcoming the bottleneck of synergistically suppressing thermal hysteresis and mechanical fatigue in PCMs. Further construction of intelligent temperature sensing arrays enables interaction between high and low-temperature environments. This work proposes a feasible strategy to promote the evolution of PCMs from passive thermal storage media to embodied intelligent components.
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Energy Reports
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2025
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IF 5.1
Jin Wang,Shengxian Hou,Xiangsheng Teng,Wenhao Zhang,Yanjiang Zhao,Chengjie You,Jiawen Xu,Shujuan Zhuang,Chuan Li
This work concerns the construction of a paraffin based shape-stable phase change composite with the use of chitosan@expanded graphite aerogel as structure skeleton for low temperature thermal energy storage application. A so-called freeze-drying integrated with infiltration approach is used for the material fabrication and a battery of experiments are performed to evaluate the composite microstructure features, chemical compatibility, and thermophyscial properties as well as cycling performance. The results show that the chitosan@expanded graphite aerogel forms a three-dimensional interconnected structure in the composite, which could effectively accommodate paraffin and prevent liquid phase leakage over heating process. More than 92 wt% of paraffin could be encapsulated in the composite, and at such a composition, the composite presents a melting temperature of 36.3 °C and a latent heat of 183.3 kJ/kg. Owning to the high heat conductivity of expanded graphite, the composite effective thermal conductivity could be significantly enhanced. For a given expanded graphite mass ratio of 33.3 % in the aerogel, the composite thermal conductivity could be reached to 1.21 W/m·°C, which is increased by 5.26 times in comparison with the pure paraffin. The composite also exhibits excellent shape stability and cycling performance. After experienced 300 times of repeated heating-cooling cycles, only less than 3 % reduction in latent heat is observed, demonstrating the composite has achieved splendid cycling ability and could be a competitive candidate utilized in low temperature thermal energy storage fields.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Wenqing Xie,Jianwen Hu,Jian Yang,Xinyu Yuan,Junjie Fan,Haotian Gao,Tianhao Zhang,Jingwen Wang,Chunling Li,Shuangqing Sun
This study introduces a novel pH-responsive Janus emulsifier based on snowman-shaped NH 2 -PS@SiO 2 Janus nanoparticles, demonstrating exceptional interfacial activity and intelligent demulsification control. The synthesized particles achieved a significant reduction in oil-water interfacial tension by 15.08 mN/m at a 1 wt% concentration, while forming stable Pickering emulsions with average droplet sizes of 72.04 μm. The system exhibited rapid and reversible pH-responsive behavior: immediate demulsification occurred under acidic conditions (pH < 7) through amino group protonation, whereas alkaline conditions (pH > 7) maintained stability via deprotonation. Zeta potential measurements confirmed charge-switching capability across a pH range of 2–12, enabling four cycles of controlled emulsification-demulsification. The unique amphiphilic Janus architecture facilitated vertical anchoring at oil-water interfaces, substantially enhancing emulsion stability compared to homogeneous counterparts. This work establishes a versatile platform for smart emulsion systems requiring on-demand destabilization.
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Small Methods
·
2025
·Vol. 9
·期 8
·2500115
·
IF 9.1
Shuiling Jin,Yanzhen Jing,Haowen Lu,Lufeng Shi,Mengying An,Xuesong Ye,Yifan Wang,Xiujun Cai,Shangjing Xin
Digital light processing (DLP) 3D bioprinting is a powerful technique for fabricating intricate tissue structures, yet it faces challenges related to limited bioink selection, difficulty in printing heterogeneous materials, and poor cell incorporation. In this study, photocrosslinkable hydrogel microparticle (HMP) bioinks tailored for DLP bioprinting are developed and optimized. Unlike traditional extrusion-based printing of HMPs that rely on jamming, the DLP approach eliminates this constraint, enabling improved printing resolution and cytocompatibility. It is demonstrated that the aqueous components, such as crosslinkers and photoinitiators, mixed in HMP bioinks ensure sufficient fluidity, supporting consistent DLP printing across a broad range of parameters. Small HMPs (28.2 ± 1.78 µm) provided better structural fidelity than large HMPs (75.0 ± 4.73 µm). Optimized crosslinking conditions and finely tuned UV exposure settings further enabled high-resolution printing, including the formation of serpentine inner channels. Importantly, cell-laden HMP bioinks maintained high viability, achieved uniform cell distribution within printed constructs, and supported their continued growth due to the void spaces between HMPs. The modular nature of HMPs also allowed straightforward multi-material printing. This work expands the application of HMP bioinks to DLP bioprinting, offering a versatile platform for biomanufacturing tissue constructs with microscopic compartmentalization for tissue engineering applications.
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Advanced Materials Technologies
·
2025
·
IF 6.2
Shuangshuang Miao,Lingyu Sun,Xiangdong Liu,Yongping Chen
Ice accretion on airplane surfaces, power lines, or wind turbines causes severe detrimental effects on commercial and residential activities. A great deal of effort has been made to prepare facile and environmentally friendly anti-icing and de-icing surfaces over the last several years. Herein, we present a novel paraffin-infused polyurethane-carbon nanotubes micro-nanostructured icephobic surface (PIPCS) with desired photothermal, electrothermal, and switchable hydrophobic/slippery wettability features for anti-/deicing. The hydrophobic characteristic prevents the ice/frost formation, and the slippery property accelerates the removal of supercooled liquid water. The light-trapping effect from carbon nanotubes endows the film with superior non-contact deicing ability via light irradiation. Furthermore, spatiotemporal control of frost crystal growth on a surface could be achieved via coordination of the strength of cooling and irradiation. Additionally, for the scenarios of sunlight absence, PIPCS exhibits an outstanding electrothermal deicing ability under low voltage. The above properties make PIPCS a promising all-weather anti-icing surface for passive anti-icing and non-contacting deicing in high-altitude equipment and power transportation systems.
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BIOMACROMOLECULES
·
2025
·
IF 5.4
Qi Dai,Jiayi Lv,Yanpeng Cheng,Sining Huang,Hao Li,Zhaolin Yang,Mengqi Zhu,Long Bai,Zhiguo Li,Yang Liu,Siqi Huan
The stabilization of phase change materials (PCMs) in high internal phase emulsions (HIPEs) remains particularly challenging due to their inherent properties, significantly hindering their application in functional materials. Here, we introduce a versatile strategy in which oppositely charged cellulose nanofibrils (CNF) and didodecyl dimethylammonium bromide (DDAB) cooperate to construct PCM-in-water high internal phase Pickering emulsions (HIPPEs). The stabilization mechanism relies on a dual barrier: (i) electrostatic adsorption of CNF/DDAB complexes at the oil–water interface forms a dense and reversible interfacial film; (ii) a percolating CNF network in the continuous phase suppresses droplet migration through steric hindrance and viscoelasticity. Consequently, the emulsions remain stable over 30 days at room temperature, these HIPPEs suit diverse oils (including difficult-to-stabilize liquid paraffin) with up to 92% internal-phase volume, serving as green templates/3D printing inks and expanding the fabrication window for programmable HIPPEs in latent-heat storage and thermal management.
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COLLOIDS AND SURFACES B-BIOINTERFACES
·
2025
·
IF 5.6
Qingyun Jiang,Shuai Shao,Zunhui Zhao,Na Li,Hangyu Zhang,Bo Liu
In this study, we engineered dual-network amphiphilic ionic hydrogel microspheres as microcarriers for culturing in mesenchymal stem cells (MSCs), enhancing stemness retention and proliferation. The microspheres were termed DCsa. We innovatively integrated the zwitterionic sulfobetaine methacrylate (SBMA) into the DCsa microsphere structure, and with its outstanding superhydrophilic properties, formed high-energy hydration barrier sites with strong electrical neutrality on the surface of the microspheres. These sites can efficiently block the adsorption of non-specific proteins, ensuring the maintenance of stemness in long-term cultured MSCs. In addition, the addition of AAm endows the surface of microspheres with abundant functional site groups, which exhibit significant promoting effects on cell adhesion and proliferation processes. Functional assessments confirmed that MSCs cultured on DCsa maintained high cells viability and stemness over extended periods. These findings underscore the potential of DCsa microspheres as an effective three-dimensional (3D) culture platform for the large-scale propagation of MSCs, offering significant implications for the advancement of regenerative medicine and cell therapy.
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高影响因子
CARBON
·
2025
·
IF 11.6
Dazhi Chen,Tian Li,Wenting Deng,Tinghao Liao,Yao Zou,Zhongqiu Guo,Fanbin Meng
Recently, the multi-components hybridization technology and heterogeneous interface design have became the effective pathway to enhance microwave absorption (MA) performance and broaden the effective absorption bandwidth (EAB). To illustrate the heterointerface polarization in the multiscale, this work introduced multi-axis co-electrospinning technology to design a type of multi-components graphene-based aerogel microspheres (GAMs) with two resonant cavities that owing multiple heterogeneous interfaces. The artificial interfaces, engineered at submillimeter scales, were constructed based on triple tangent sphere-like absorbers with differentiated electromagnetic characteristics, possessing both outstanding impedance and attenuation ability. The typical H@ZnO/C/Fe 3 O 4 GAMs-3 displayed impressive reflection loss ( RL min ) of −61.5 dB at 9.58 GHz, and simultaneously the corresponding EAB reached 6.63 GHz. Besides, the widest EAB of this composite was 8.5 GHz, remaining that the RL min values reached −36.92 dB. It revealed that synergistic interface effect in the macro-micro-nano scale could extremely improve scattering properties in the multi-shell cavity. On this basis, the group effect of layered stacked model for different types of GAMs models was explored via electromagnetic simulation, demonstrating that the macro-scale interface between different microsphere individuals could induce electromagnetic polarization. This research emphasized the significance of multi-scale heterointerface engineering in optimizing MA performance, offering new pathways for broadband MA materials.
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