Science China-Materials
·
2025
·
IF 7.4
Li Hang,Wang Zehao,Tu Hongyi,Chen Min,Wu Yi,Wu Limin
Transparent superhydrophobic coatings hold significant potential for applications in architectural glass and optoelectronic devices. However, obtaining good compatibility between highly transparent, low haze and excellent mechanical stability in a superhydrophobicity coating remains a significant challenge. Inspired by the natural protection mechanism of the hierarchical structure of leaf veins, we have designed and fabricated transparent superhydrophobic coatings with highly detailed hierarchical vein-like ridges via a template-assisted multi-mask photolithography and inverted mold process combined with a spraying technique. The coated glass exhibited not only outstanding superhydrophobicity, with contact angle ⩾ 160° and sliding angle ⩽ 1.5° but also a high optical transmittance of 88.4% and a low haze of 8.1%, as well as remarkable mechanical durability and weather resistance.
研究领域:
材料科学
·
仿生学
·
光学工程
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产品关联
DOI
高影响因子
Small
·
2024
·
IF 13
Haodong Gu,Li Tian,Qiuqi Zhang,Xiao You,Mengmeng Wang,Shaoming Dong,Jinshan Yang
Electromagnetic protection in extreme environments requires materials with excellent thermal insulation capability and mechanical property to withstand severe temperature fluctuations and complex external stresses. Achieving strong electromagnetic wave absorption (EMA) while sustaining these exceptional properties remains a significant challenge. Herein, a facile approach is demonstrated to fabricate a biomimetic leaf-vein MXene/CNTs/PI (MCP) aerogel with parallel venations through bidirectional freeze-casting method. Due to its multi-arch lamellar structure and parallel venations within the aerogel layers, the ultralight MCP aerogel (16.9 mg·cm −3 ) achieves a minimum reflection loss (RL min ) of −75.8 dB and a maximum effective absorption bandwidth (EAB max ) of 7.14 GHz with an absorber content of only 2.4 wt%, which also exhibits superelasticity and structural stability over a wide temperature range from −196 to 400 °C. Moreover, this unique structure facilitates rapid heat dissipation within the layers, while significantly impeding heat transfer between adjacent layers, achieving an ultralow thermal conductivity of 15.3 mW·m −1 ·K −1 for thermal superinsulation. The combination of excellent EMA performance, robust structural stability, and thermal superinsulation provides a potential design scheme under extreme conditions, especially in aerospace applications.
研究领域:
材料科学
·
航空航天工程
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2024
·
IF 11.2
Xinyi Wang,Yan Tao,Chunyu Zhao,Min Sang,Jianpeng Wu,Ken Cham-Fai Leung,Ziyang Fan,Xinglong Gong,Shouhu Xuan
Breathable and stretchable conductive materials are ideal for healthcare wearable electronic devices. However, the tradeoff between the sensitivity and detection range of electronic sensors and the challenge posed by simple-functional electronics limits their development. Here, inspired by the bionic-leaf vein conductive path, silver nanowires (AgNWs)-Ti 3 C 2 T x (MXene) hybrid structure assembled on the nonwoven fabrics (NWF) is well sandwiched between porous polyborosiloxane elastomer (PBSE) to construct the multifunctional breathable wearable electronics with both high anti-impact performance and good sensing behavior. Benefiting from the high conductive AgNWs-MXene hybrid structure, the NWF/AgNWs-MXene/PBSE nanocomposite exhibits high sensitivity (GF = 1158.1), wide monitoring range (57 %), controllable thermal management properties, and excellent electromagnetic interference shielding effect (SE T = 41.46 dB). Moreover, owing to the wonderful shear stiffening effect of PBSE, the NWF/AgNWs-MXene/PBSE possesses a high energy absorption performance. Combining with deep learning, this breathable electronic device can be further applied to wireless sensing gloves and multifunctional medical belts, which will drive the development of electronic skin, human-machine interaction, and personalized healthcare monitoring applications.
研究领域:
材料科学
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生物医学工程
·
电子工程
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产品关联
DOI
高影响因子
MACROMOLECULES
·
2023
·
IF 5.5
Peng Zhang,Lin Chen,Yan Guo,Lei Zhang,Xiu-Li Wang,Yu-Zhong Wang
Inspired by the interpenetrating network of nature leaf-vein, non-composite polymer materials with ultra-robust, lightweight, and fully recyclable properties are synthesized by a “hetero-furan unit”-driven multiscale design. That is, starting from the primary chemical structure at the molecular scale, the furan group is copolymerized in a polymer chain (polyethylene terephthalate, PET). Then, these “hetero-furan units” simultaneously regulate the secondary chain conformation (nano-scale) and the tertiary aggregate structure (micro-scale) of the PET copolymer, thereby driving the spontaneous growth of the “leaf-vein”-mimicking crystal reinforcement phase. Requiring only less than 1% furan units, corresponding copolymer PET-FN1 not only exhibits surprising fourfold increase in toughness (tensile toughness of 346 MJ m–3 and impact strength of 69.8 kJ m–2) and 40% increase in tensile strength (83.6 MPa) but also achieves lower density and easy processing. This demonstrates the super-efficiency of this bioinspired multiscale design regulated by the original chemical structure. Especially, copolymer PET-FN1 can be quickly chemically recovered under mild conditions (80 °C, 4 h) to obtain raw monomers with a purity of 99.8%. This work opens up a new perspective for developing advanced polymer materials with excellent mechanical properties, lightweight, and environmentally friendly recycling, which will greatly benefit the global circular economy and sustainable development.
研究领域:
材料科学
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仿生学
·
化学工程
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产品关联
DOI
高影响因子
Environmental Science-Nano
·
2020
·Vol. 7
·期 9
·2644-2653
·
IF 7.683
Ning Tang,Yang Si,Jianyong Yu,Bin Ding
The increasing worldwide contamination of freshwater by pathogenic microbes is one of the key global challenges facing public health. The commonly used technologies are often limited either by non-recyclability or deterioration of porous structures. Herein, an innovative leaf vein-inspired membrane (LVIM) by a nanonetwork structure is constructed by combining vapor-induced phase separation with electrospinning. Through exquisite control of solvents and relative humid conditions, our approach allows the continuous nanoscale network (∼45 nm fiber diameter) to strongly bind with electrospun nanofibers. The resulting LVIMs exhibit integrated properties of desirable pore structures (small pore size of 0.19 μm, high porosity of 93.2%, and favorable interconnectivity) and strikingly low membrane thickness (∼700 nm). Consequently, the LVIMs are capable of effectually capturing sub-micron particles (∼0.3 μm TiO2 particles) with high efficiency of 99.75% and robust permeation flux of 3907 L m−2 h−1 under an ultralow driving pressure of 5 KPa. More significantly, an outstanding bacterial removal efficiency for E. coli (log reduction value of 8.0) with twice the higher permeation flux (1206 L m−2 h−1) than the commercial microfiltration membranes was also achieved for LVIMs. The successful construction of such versatile membranes may act as an inspirational source for the design of next-generation high-performance separation membranes for various separation applications.
研究领域:
环境科学
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材料科学
·
膜技术
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产品关联
DOI
高影响因子
Sustainable Materials and Technologies
·
2024
·
IF 8.6
Jianyu Wu,Linmin Xia,Yiqin Shen,Chenshu Tan,Jiayun Su,Yuying Yang,Yan Yu,Rilong Yang
Passive daytime radiative cooling (PDRC) technology is a promising technology that can realize zero-energy consumption. The flexible PDRC materials attract much attention owing to their broad applicability. However, the flexible PDRC materials always show unsatisfactory mechanical performance, especially when exposed to prolonged sunlight irradiation. In addition, their fire resistance is also a cause for concern. Herein, inspired by the hierarchical leaf vein structure, a pliable, UV-resistant, nonflammable, robust nanocomposite cooling paper (HTP) composed of hydroxyapatite nanowires (HNWs) and TEMPO-oxidized cellulose nanofibers (TOCNFs) is developed. Through customizing interfacial engineering to introduce physical entanglement and multiple bonding, the leaf-vein-analogous hollow networks formed by HNWs are reinforced by TOCNFs, fully leveraging the advantages of one-dimensional inorganic HNWs and organic TOCNFs at the nanoscale. This enables the HTP to achieve excellent mechanical strength and PDRC performance with a small amount of TOCNFs doping. HTP exhibit a high tensile strength of 48.56 MPa and Young's modulus of 3.07 GPa, surpassing most previously reported flexible PDRC materials. Furthermore, HTP demonstrates outstanding flame resistance and anti-UV aging properties, which benefit from frameworks formed by HNWs and TOCNFs. The exceptional overall performance overcomes the limitations of conventional polymer-based flexible PDRC materials, significantly advancing the practical application of flexible PDRC materials, especially for building cooling.
研究领域:
材料科学
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纳米技术
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建筑节能
·
环境科学
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产品关联
DOI
高影响因子
LANGMUIR
·
2025
·
IF 3.9
Xinkun Chen,Tao Tang,Junlong Zhai,Aoxun Liang,Xiaoyu Li,Xueye Chen
Inspired by plant vascular architectures and leveraging hierarchical vein-branching principles, this study pioneers a biomimetic leaf-venation groove micromixer (LVGM) to address critical limitations in passive microfluidic mixing and conventional liposome preparation. Through systematic numerical simulations, we elucidate the flow field characteristics and vortex-driven mixing mechanisms of the LVGM architecture, complemented by experimental validation of its mixing performance and nanocarrier synthesis capabilities. The bioinspired groove configuration induces hierarchical vortical flows that amplify chaotic advection, achieving exceptional mixing efficiencies (>99%) across broad Reynolds numbers (Re = 0.1–100). When applied to the nanopharmaceutical synthesis, the LVGM enables single-step fabrication of ciprofloxacin-loaded liposomes (CIP-LNPs) with precise size control (131.8 ± 1.84 nm) and narrow dispersity (polydispersity index (PDI) = 0.213 ± 0.009). The engineered nanoparticles demonstrate remarkable colloidal stability (<6.97% size variation over 14 days at 4 °C), with surface characteristics and morphological uniformity confirmed through zeta potential analysis (−34.7 ± 0.86 mV) and transmission electron microscopy (TEM) imaging. Cytotoxicity evaluation revealed that CIP-LNPs maintained >80% viability of L929 fibroblasts at concentrations ≤20 μg·mL–1, confirming their excellent biocompatibility. This vascular-mimetic microfluidic platform advances drug delivery technology by combining energy-efficient operation with scalable manufacturing potential while establishing new paradigms for bioinspired microsystems in precision nanomedicine applications.
研究领域:
生物医学工程
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纳米技术
·
微流体学
·
药物传递
·
仿生学
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药剂学
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产品关联
DOI
PubMed
高影响因子
Science Bulletin
·
2019
·
IF 6.277
Teng Li,Shengyou Li,Xuyi Li,Zijie Xu,Jizhong Zhao,Yating Shi,Yanan Wang,Rui Yu,Xiangyang Liu,Qingchi Xu,Wenxi Guo
As essential components of numerous flexible and wearable optoelectronic devices, the flexible transparent conducting electrodes (TCEs) with sufficient optical transmittance and electric conductivity become more and more important. In this work, we fabricated a large-area flexible TCE based on leaf vein-like hierarchical metal grids (HMG) comprising of mesoscale “trunk” and microscale “branches”. The self-formed branched grids made the conducting paths distributing uniformly while the laser-etching trunk grids enabled to transport the collected electrons across long-distance. The Ag HMG exhibited high optical transmittance (~81%) with low sheet resistance (1.36 Ω sq –1 ), which could be simply optimized through adjusting the grids’ widths, spaces, and the sizes of the TiO 2 colloidal crackle patterns. In addition, on the basis of such advanced HMG electrode, flexible electrochromic devices (ECDs) with remarkable cyclic performance were fabricated. The HMG with high transparency, conductivity, and flexibility provides a promising TCE for the next-generation flexible and wearable optoelectronic devices.
研究领域:
材料科学
·
纳米科技
·
柔性电子学
·
光电子学
·
表面工程
·
功能材料
·
智能窗口技术
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Yongshen Zhou,Shuangmin Fu,Shulun Ai,Ke Pei,Zhiguang Guo
The leaf vein (LV) structure is an evolutionarily optimized quasi-fractal network responsible for efficient capture and transport of water with minimum energy consumption. For the first time, a bio-inspired dual-metal organic framework (MOF) functionalized LV network was proposed for water collection. Two MOFs with distinct wettabilities and microstructures are in-situ grown on opposite side of a metallic LV network, yielding a Janus LV (J-LV) network. The integrated strategy by mimicking cactus needles, Janus structures and bionic LV network in water harvesting can be regulated by the multi-cooperation theory in the processes of droplet caption, transport and collection. As such, the fog collection efficiency of J-LV devices can reach 1.23 ± 0.07 g cm -2 h −1 , which is a 292.9 % increase compared to that of the bare LV. Moreover, the J-LV has excellent interfacial floatability, showing capability of not only carrying objects weighing 149.5 times its own weight while keeping afloat, but also attaching firmly to the air–water interface under harsh airflow. We demonstrate that such Janus quasi-fractal LVs networks by in-situ dual-MOF growth will inspire new insight for designing highly efficient fog water collectors and intelligent Janus interface materials.
研究领域:
材料科学
·
环境科学
·
仿生学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
ULTRASONICS SONOCHEMISTRY
·
2025
·
IF 9.7
Longshi Rao,Shengxin Zhu,Jiaying Liu,Qiuling Bai,Junxian Zou,Chuheng Deng,Hongze Tu,Qingxian Liu,Guisheng Zhong,Xiaodong Niu,Jiasheng Li
Carbon dots (CDs) are promising fluorescent nanomaterials with broad applications in optoelectronics, healthcare, and artificial photosynthesis. However, synthesizing indigo-emitting CDs with optimal properties remains challenging due to the inefficiencies and complexity of conventional methods. This study introduces a high-performance ultrasonic microreactor inspired by biomimetic leaf vein structures to enhance CD synthesis efficiency. We developed a COMSOL Multiphysics-based optimization framework to improve flow field uniformity and examine transport dynamics within the microchannel. This framework identified key parameters, including leaf vein contours, fractal angles, depth-to-width ratios, and inlet configurations, that govern flow characteristics. Additionally, we optimized ultrasonic energy transfer by directly coupling the transducer with the microreactor, determining the optimal frequency (21 kHz) and power (100 W) for maximum reactor performance. Visualization experiments revealed how ultrasound regulates bubble dynamics, enhancing interfacial area and stabilizing suspension behavior. Using this optimized system, we synthesized indigo-emitting CDs with a maximum PLQY of 27.5 % and a narrow FWHM of ∼78 nm under 365 nm excitation. Multivariate experiments revealed how flow velocity, reaction temperature, and ultrasonic modulation influence the optical properties of the CDs. This work underscores the synergistic combination of ultrasonic energy, biomimetic design, and simulation-guided optimization, providing a solid foundation for scalable synthesis of carbon-based nanomaterials with applications in optoelectronics, healthcare, and beyond.
研究领域:
纳米技术
·
材料科学
·
化学工程
·
光电子学
·
声学工程
·
仿生学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Food Chemistry-X
·
2024
·
IF 6.5
Huina Luo,Huimin Ruan,Cailing Ye,Wenkang Jiang,Xin Wang,Shengfeng Chen,Zhisheng Chen,Dongsheng Li
Animal cell culture technology in the production of slaughter-free meat offers ethical advantages with regards to animal welfare, rendering it a more socially acceptable approach for dog meat production. In this study, edible plant-derived scaffold was used as a platform for cell expansion to construct cell-cultured dog meat slices. Primary dog skeletal muscle satellite cells (MSCs) and adipose stem cells (ASCs) were isolated and cultured as seed cells, and 3D spheroid culture in vitro promoted MSCs and ASCs myogenic and adipogenic differentiation, respectively. Natural leaf veins (NLV) were produced as edible mesh scaffolds to create 3D engineered dog muscle and fat tissues. After MSCs and ASCs adhered, proliferated and differentiated on the PLV scaffolds, and muscle and fat slices were produced with cultured dog muscle fibers and adipocytes, respectively. These findings demonstrate the potential of plant-derived PLV in the production of cultured dog meat.
研究领域:
组织工程
·
细胞生物学
·
生物技术
·
食品科学
·
可持续农业
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产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2019
·
IF 5.399
Yinyin Liao,Xiumin Fu,Haiyun Zhou,Wei Rao,Lanting Zeng,Ziyin Yang
Although specialized metabolite distributions in different tea ( Camellia sinensis ) tissues has been studied extensively, little is known about their within-tissue distribution owing to the lack of nondestructive methodology. In this study, desorption electrospray ionization imaging mass spectrometry was used to investigate the within-tissue spatial distributions of specialized metabolites in tea. To overcome the negative effects of the large amount of wax on tea leaves, several sample preparation methods were compared, with a Teflon-imprint method established for tea leaves. Polyphenols are characteristic metabolites in tea leaves. Epicatechin gallate/catechin gallate, epigallocatechin gallate/gallocatechin gallate, and gallic acid were evenly distributed on both sides of the leaves, while epicatechin/catechin, epigallocatechin/gallocatechin, and assamicain A were distributed near the leaf vein. L -Theanine was mainly accumulated in tea roots. L -Theanine and valinol were distributed around the outer root cross-section. The results will advance our understanding of the precise localizations and in-vivo biosyntheses of specialized metabolites in tea.
研究领域:
植物科学
·
分析化学
·
代谢组学
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产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）