ACS Applied Nano Materials
·
2025
·
IF 5.5
Ming Qian,Lei Song,Zefan Huang,Xiucheng Hu,Yunpeng Bai,Yukun Chen,Na An,Haipeng Sun
Bacterial antibiotic resistance poses a global threat to public health, highlighting the urgent need for innovative antimicrobial strategies. Zinc-based nanomaterials have shown promise in antibacterial treatments but are often limited by their low antimicrobial efficiency and poor biocompatibility. In this study, we propose a synergistic antibacterial approach that utilizes the Trojan horse effect through nanocomposites. By exploiting bacterial dependence on Fe3+, we introduce Ga3+ as a substitute, disrupting bacterial growth from within. Utilizing a ZIF-L carrier to load indocyanine green (ICG), we achieve targeted delivery of ICG, which generates ROS under light irradiation, effectively eradicating methicillin-resistant Staphylococcus aureus biofilms. In addition, the combined application of Zn2+ and Ga3+ effectively inhibits the growth of Porphyromonas gingivalis, providing complementary synergistic damage to bacteria from the inside out. This combined approach, integrating Zn2+, the Trojan horse mechanism, and photodynamic therapy, offers a promising therapeutic strategy against bacterial antibiotic resistance.
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高影响因子
MACROMOLECULAR RAPID COMMUNICATIONS
·
2025
·
IF 4.3
Yang Chen,Xinbo Lu,Ziqiang Liu,Weiqiang Xiao,Lina Song,Linquan Lang,Hongqing Li,Xiaoli Zhan,Feng Gao,Qinghua Zhang
Critical issues such as leakage, degradation, and thermal response hysteresis have become the focus in the application of phase change materials (PCMs) in area such as thermal management of fabrics. The encapsulation of PCMs prepared as microcapsules using polysiloxanes, etc. as a component unit of crosslinking agents represents a highly promising avenue of research. In this work, organosilicon crosslinkers are prepared and employed for the crosslinking of poly (methyl methacrylate) (PMMA) for microencapsulation of paraffin wax in microcapsule phase change materials (mPCMs). The results showed that increasing the degree of crosslinking helps to improve the performance of mPCMs by smoothing the shell surface, but excessive crosslinking leads to flocculation, which reduces its performance. The mPCMs produced with 10% wt crosslinking agent gave the highest performance with encapsulation efficiency, melting enthalpy and crystallization enthalpy of 81.3%, 285.0 J g −1 and 253.1 J g −1 , respectively. The obtained mPCMs are also combined with epoxy resin and fabrics to form composite materials. Notably, the polysiloxane-modified mPCMs permit epoxy resins to achieve a maximum temperature reduction of 25 °C. By adjusting the mass ratio of organosilicon crosslinkers, the obtained mPCMs enable textiles to reach a maximum temperature reduction of 17 °C while maintaining satisfactory air permeability.
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Surfaces and Interfaces
·
2024
·
IF 5.7
Jiahua Gu,Xinxin Dai,Shiyi Liu,Xiantao Zhang,Yinsong Hu,Yinjiang Zhang,Zhuanyong Zou
s Traditional dressings tend to adhere to wounds during the healing process, causing secondary damage and delaying wound healing during replacement. Hydrophobic surfaces are resistant to the adhesion of cellular and proteinaceous wound exudates. Herein, a hydrophobic spunlace nonwoven-based dressing composed of the nano-silica/polydimethylsiloxane (SiO 2 /PDMS) composite cotton mesh was developed by a two-step spraying method. The process parameters were optimized by the L 9 (3 4 ) orthogonal experiment to obtain fabrics with excellent hydrophobicity and abrasion resistance. The optimized fabric finishing effect was achieved when the SiO 2 concentration was 0.8 wt%, the PDMS concentration was 0.8 wt%, the heat treatment temperature was 130 °C, and the time was 12 h. After optimization, the contact angle (CA) of the fabric was 145.0 ± 0.7°, and it only dropped by about 1° after the friction test. FTIR, XPS, SEM, and EDS analyses collectively demonstrated the presence of a cladding structure comprising SiO 2 and PDMS on the surface of the optimized fabric. This structural modification imparts desirable mechanical properties and anti-adhesion properties to the fabric. Tensile tests revealed little effect of the optimized finishing on the mechanical properties of the fabrics. Additionally, the anti-adhesion properties of the fabrics were evaluated by an in vitro gelatin model, showing a significant reduction in peeling energy for the optimized fabric. The peeling energies of the optimized fabric were 43.1 ± 28.8 J/m 2 and 84.1 ± 12.6 J/m 2 in the machine direction (MD) and cross direction (CD), respectively, indicating about 80 % superior anti-adhesion effect compared to commercially available oil gauze. Furthermore, the optimized fabric exhibited excellent biocompatibility, causing no hemolysis, pro-coagulant effect and favorable cytocompatibility. These results indicate that this hydrophobic spunlace nonwoven fabric has great potential for the application of anti-adhesive medical dressings.
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LANGMUIR
·
2024
·
IF 3.7
Zhishuang Han,Xinmeng Lv,Yingge Li,Meihuan Gao,Zhenlin Tang,Xinying Su,Ziyang Zhang,Haidi Li,Jing He,Zaihang Zheng,Yan Liu
For settling the recycling problem of waste polyurethane sponges (PU) and environment pollution of oil spills simultaneously, this work exploited the multifunctional superhydrophobic PU materials via the dip-coating method, which were prepared by anchoring modified Fe3O4 and expandable graphite (EG) on PU sponges under the adhesion effect of polydimethylsiloxane (PDMS). The water contact angle and sliding angle of as-prepared PU sponges reached 154.1 ± 1.6 and 8°, respectively. Most importantly, the superhydrophobic PU sponges were endowed with the multipath oil treatment ability, which consisted of magnetically driven, gravity-driven, peristaltic pump-driven, and photothermally driven modes. Besides, the light oil absorption capacity, separation flux, and efficiency for superhydrophobic PU sponges reached 23.9 g/g, 27779 L m–2 h–1, and 99.5%, respectively. Owing to the photothermal conversion ability of Fe3O4 and EG, the temperature of superhydrophobic PU sponges was raised to 71.5 °C within 233 s under 1.2 solar irradiation (1200 W/m2), demonstrating its absorption potential for high-viscosity crude oils. In addition, the prepared sponges exhibited good chemical/mechanical stability, self-cleaning, and flame retardancy. In a nutshell, this article has evolved an environmentally benign and practical method for fabricating the multifunctional materials in oil spill treatment, which will efficiently accomplish the targets of low carbon and environmental management.
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JOURNAL OF MATERIALS SCIENCE
·
2025
·
IF 3.9
Chen Yu,Sun Junchao,Li Yongxu,Wang Yubao,Shi Shaofeng,Jiang Jing,Wang Hongzhen,Cao Lan
Developing polyurethane foams (PUF) with superior water absorption and retention remains challenging due to insufficient understanding of structure-–property relationships. This study systematically regulates the water content gradient (as blowing agent) in all-water-foamed PUF to optimize physicochemical properties. Comprehensive characterization via SEM, contact angle, water absorption, retention, and resilience tests reveals that water content critically governs microcellular architecture, surface hydrophilicity, and their synergistic effects on water management. The optimized formulation (2.5 phr water) achieves exceptional performance: 421.73% water absorption, 76.31% retention, and 55.10% resilience. These enhancements originate from uniform cell structures that harmonize hydrophilic group distribution with mechanical integrity. This work establishes fundamental guidelines for designing eco-friendly PU foams with balanced resilience and hydroscopic functionality, validated through theoretical and experimental insights.
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Yuan Chang,Xiaojuan Niu,Zhengjun Bi,Haorong Li,Wenpeng Hong,Haoran Li
Solar-driven synergistic freshwater and electricity production presents a promising solution to address global water-energy challenges. However, existing systems suffer from limited condensation surface area and long vapor transport paths, which easily lead to vapor accumulation at the evaporation interface and consequently a decrease in evaporation rate. This study develops an integrated thermoelectric-interface evaporation system featuring vapor gradient regulation through enhanced condensation. It lies in a hierarchical condensation architecture with arrayed structures that triple the effective surface area, creating abundant nucleation sites for accelerated vapor phase transition. This structural design effectively reduces the interface vapor saturation and maintains high evaporation flux through dynamic vapor pressure regulation. Under 1 sun irradiation, the system achieves concurrent water production (0.48 kg m −2 h −1 ) and electricity generation (168.15 mV open-circuit voltage). With optical concentration via a Fresnel lens, these performance metrics are further elevated to 0.72 kg m −2 h −1 and 280 mV. Importantly, the device operates stably with various feedwaters, and its practical value is demonstrated by continuously powering mobile communication equipment. This condensation-mediated vapor regulation strategy establishes a new paradigm for high-efficiency synergetic water-electricity generation, particularly for decentralized applications in resource-limited regions.
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Science Advances
·
2025
·Vol. 11
·期 37
·
IF 12.5
Fei Jia,Shengjun Fan,Jianglong Guo,Yanju Liu,Jinsong Leng
Mobile robots that simultaneously have fast speeds, sufficient load-carrying capabilities, and multiple locomotive functions have always been challenging to develop. Here, we introduce a liquid-amplified electrostatic rolling (LAER) mechanism, which elegantly integrates actuation and adhesion into a streamline single-degree-of-freedom structure. Based on this, we developed a rigid tethered LAER roller (0.015 grams) that exhibited a rapid moving speed of ~210 body length per second on ceilings and a flexible tethered roller (10.600 grams) that had a load-to-weight ratio of ~121 moving on the ground. Liquid regulating modules were embedded into LAER structures to exhibit controlled moving. We also developed a single-wheeled and two-wheeled untethered LAER robots with onboard power supply. Furthermore, we demonstrate a LAER linear actuator and a camera equipped untethered LAER robot for preliminary environmental monitoring. The lightweight, scalable LAER structure is promising to bring fast electrostatic actuators, motors, and robots with superior load-to-weight ratios and multimodal locomotion capabilities such as turning, circular moving, and plane-to-plane transitioning.
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ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Zhen Zhang,Dongsong Wei,Wenliang Zhang,Yafei Shi,Yuanpeng Wang,Ting Lu,Ana Sofia Oliveira Henriques Moita,Guoyong Wang,Yan Liu
Superhydrophobic coating (SHC) and slippery liquid-infused porous surfaces (SLIPS) have shown significant potential in anti-icing field. In this work, a smart photo-thermal-responsive superhydrophobic coating (PTRSHC) with switchable wettability between superhydrophobic and slippery states is constructed by introducing phase-change materials (n-nonadecane) and a simple spraying method, which is inspired by lotus leaf and Nepenthes surfaces. Additionally, n-nonadecane not only serves as a solid/liquid lubricant but also supports a low-surface-energy material, which enhances water repellency and anti-/deicing performance. Due to the smart wettability switching, water and ice in Wenzel state can also be quickly removed, which is hard to achieve on traditional SHC. It solves possible terrible anti-icing capability in harsh environments because of the mechanical interlocking between micro-nanostructures and ice. Moreover, the surface can maintain a more durable slippery capability than that of the traditional SLIPS. The coating exhibits an extraordinarily long freezing time of 10195 s, an ice-melting time of 238 s under 1 sun, and an ice adhesion strength as low as 26.9 kPa. Importantly, the coating also has excellent wear resistance and chemical stability. This work provides a new idea for designing and constructing of smart and durable anti-/deicing surfaces which can be widely applied outdoors.
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ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Yilin Wang,Xiran Zhou,Xijing Yang,Jiahao Liang,Shifan Chen,Ziyue Ling,Wenjie Wang,Zijian Shao,Xin Song,Ran Wei,Weifeng Zhao,Changsheng Zhao
Separating toxins from albumin is significantly more challenging than simply adsorbing the toxin/protein complex during blood purification. Bilirubin is distinctive among protein-bound toxins because its photodecomposition products are hydrophilic and readily dissociate from albumin. Inspired by phototherapy for neonatal jaundice, an innovative multifunctional adsorbent is proposed and equipped with self-photodecomposition and visual monitoring abilities. Herein, inverse opal beads (IOBs) is developed through strategic nanoarchitectonics. The periodic ordered structure of the IOBs imparts a self-hosted blue light emission property that facilitates the bilirubin photodecomposition. Additionally, the interconnected pores of the IOBs enhance the adsorption of bilirubin photodecomposition products. Moreover, the colors of the IOBs change in response to the amount of adsorbed bilirubin photodecomposition products, allowing for real-time visual monitoring of the adsorption state during hemoperfusion. These features allow the IOBs to effectively compete with albumin for toxin binding. In hyperbilirubinemia rats, the total bilirubin (TBIL) clearance ratios achieved by the IOBs and a commercial adsorbent (BS330) are 45.1% and 29.3%, respectively. Notably, albumin (ALB) concentration decreased by 31.8% after treatment with BS330, whereas no significant change is observed in the IOB-treated group. These results suggest that IOBs hold great potential as a highly promising adsorbent for treating hyperbilirubinemia.
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POLYMER
·
2025
·
IF 4.5
Bo Zhu,Xu Sun,Yu Feng,Ji Liu,Xinyu Tao,Bo Yang
A microcapsule/XLPE composite material based on reversible Diels-Alder(DA) reaction was designed to solve the problem of electro-hydro hybrid tree aging in cross-linked polyethylene (XLPE) cables during long-term operation. Light-water dual-responsive microcapsules were prepared by in-situ polymerization using hyperbranched polysiloxane containing furan functional groups and linear polysiloxane containing furan and maleimide functional groups introduced by C C covalent bond as core materials and urea-formaldehyde resin as wall materials. A series of composites was prepared by regulating the doping concentration of microcapsules, and their insulation properties were tested. The effect of the doping content of microcapsules on the properties of materials was analyzed, and the multiple self-healing mechanism of microcapsule/XLPE composite was revealed. The results show that when the microcapsule doping concentration is 1 wt%, the composite material can self-heal while maintaining the intrinsic insulation performance of XLPE. Under the condition of thermal triggering, the dynamic reconstruction of the reversible bond enables the material to achieve dual repair of water tree and electrical tree damage, and maintains more than 80 % of the insulation performance after three times of damage-repair, which provides a new strategy for the intelligent design and life extension of high voltage cable insulation materials.
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INDUSTRIAL CROPS AND PRODUCTS
·
2025
·
IF 6.2
Tingjie Chen,Yuhan Tang,Gang Zhao,Zhaoxing Lin,Lihong Xu,Zhenzeng Wu,Xiangfang Peng
As environmental pollution intensifies, particularly due to the severe ecological threats posed by crude oil spills, there is an urgent need to develop hydrophobic/oleophilic porous absorbents with self-heating capabilities. These absorbents can reduce crude oil viscosity through in-situ heat transfer, thereby accelerating the remediation process. Herein, A novel multifunctional and compressible sponge (m-PFS@PPy@Fe₃O₄) is developed by self-assembling PPy, Fe₃O₄ nanoparticles, and polydimethylsiloxane onto the plant fiber sponge. The m-PFS@PPy@Fe₃O₄ exhibits high hydrophobicity and excellent compressibility, making it highly effective in separating oil-water mixtures with a high oil absorption capacity (24.7 ∼ 53.5 g/g). Due to the synergistic effect of photothermal and magnetic-thermal properties, the surface temperature can rapidly rise from 28.0°C to 96.9°C under 1 sun irradiation and 54.2°C under a specific magnetic field. This heat generation, effective in all weather conditions, overcomes limitations related to both weather and energy. The generated heat is transferred to the oil, significantly reducing its viscosity and speeding up the oil absorption process. More importantly, the sponge can be connected to a vacuum pump-assisted absorption device, enabling continuous recovery of crude oil from the water surface under sun irradiation or magnetic field, demonstrating great potential for highly efficient remediation of viscous oil spills.
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NATURE
·
2025
·Vol. 647
·期 8091
·889-896
·
IF 48.5
Xue Yaoting,Cao Jiasheng,Feng Tao,Zhang Kaihang,Li Siyang,Hu Jiahao,Guo Haotian,Zhang Jinming,Song Yaoxian,Wang Zhuofan,Wang Lei,Huang Qishan,Zhou Haofei,Zhou Fanghao,Shen Jiliang,Fan Yaowei,Wang Zhe,Li Xinge,Wong Jie-Wei,Chen Zhiwei,Ruan Dongrui,Miao Zhikun,Zhang Bin,Zhou Enjie,Gan Letian,Wang Xuanqi,Cao Ertai,Chen Tong,Zou Weifeng,Zhang Junhui,Lu Haojian,Zhang Qinghai,Liu Song,Dong Huixu,Xiong Shiying,Peng Shuyou,Wong Tuck-Whye,Chen Yuanjie,Li Tiefeng,Chen Mingyu,Yang Xuxu,Yang Wei,Cai Xiujun
Mechanical transmission is essential in force-related activities ranging from the daily tying of shoe laces 1 to sophisticated surgical 2 and robotic operations 3 , 4 . Modern machines and robots typically use complex electronic devices designed to sense and limit force 5 , some of which still face challenges when operating space is limited (for example, in minimally invasive surgeries) 6 or when resources are scarce (for example, operations in remote areas without electricity). Here we describe an alternative slipknot-based mechanical transmission mechanism to control the intelligent operation of both human and robotic systems. Through topological design, slipknot tying and release can encode and deliver force with a consistency of 95.4% in repeating operations, which circumvents the need for additional sensors and controllers. When applied to surgical repair, this mechanism helped inexperienced surgeons to improve their knotting-force precision by 121%, enabling them to perform surgical knots as good as those of experienced surgeons. Moreover, blood supply and tissue healing after surgery were improved. The mechano-intelligence exhibited in slipknots may inspire investigations of knotted structures across multiple length scales. This slipknot-gauged mechanical transmission strategy can be widely deployed, opening up opportunities for resource-limited healthcare, science education and field exploration.
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高影响因子
危险品化学品经营许可证（带存储）