Journal of Materials Chemistry A
·
2021
·Vol. 10
·期 1
·304-312
·
IF 12.732
Zhihua Yu,Shuhui Li,Mingming Liu,Ruofei Zhu,Mengnan Yu,Xiuli Dong,Yaxin Sun,Shaohai Fu
The shortage of freshwater severely constrains economic development and social security worldwide. Bio-inspired functional fog-harvesting devices (FHDs) have been broadly exploited to tackle this global challenge. Despite the great advances achieved in FHDs, efficient and large-scale water harvesting is still hindered by some inherent limitations: (1) a rational structure should be designed to maximize the function of the separated hydrophilic and hydrophobic regions, (2) simple, low-cost and mature manufacturing technology can better realize the large-scale production of FHDs. Here, inspired by the unique wettability of Namib desert beetles and the wedge-shaped structure of leaf veins, we prepared a dual-biomimetic tuck fabric with a manipulable structure and wettability using knitting technology, which greatly enhanced the fog capture velocity and directional water transportation. The influences of different structures and wettability on fog capture and droplet transportation efficiency have been systematically investigated. Moreover, massive theoretical models were proposed to reveal the fog harvesting mechanism. The optimized FHD exhibited rapid and highly efficient fog harvesting capacity (5424 mg h−1 cm−2). In addition, the prepared FHD showed excellent mechanical strength and durability, enabling low-cost and large-scale production. Thus, this work reinforces the understanding of the fundamental research and significantly promotes the practical applications of functional fog-harvesting devices.
研究领域:
材料科学
·
环境科学
·
生物仿生学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2022
·
IF 10.53
Yuyao Li,Yuezhen Hua,Zekai Ji,Zheng Wu,Jie Fan,Yong Liu
Coronavirus disease 2019 (COVID-19) pandemic makes protective respirators highly demanded. The respirator materials should filter out viral fine aerosols effectively, allow airflow to pass through easily, and wick away the exhalant moisture timely. However, the commonly used melt-blown nonwovens perform poorly in meeting these requirements simultaneously. Herein, dual-bionic nano-groove structured (NGS) nanofibers are fabricated to serve as protective, breathable and moisture-wicking respirator materials. The creativity of this design is that the tailoring of dual-bionic nano-groove structure, combined with the strong polarity and hydrophilicity of electrospinning polymer, not only endows the nanofibrous materials with improved particle capture ability but also enable them to wick away and transmit breathing moisture. Benefitting from the synthetic effect of hierarchical structure and the intrinsic property of polymers, the resulting NGS nanofibrous membranes show a high filtration efficiency of 99.96%, a low pressure drop of 110 Pa, and a high moisture transmission rate of 5.67 kg m -2 d -1 at the same time. More importantly, the sharp increase of breathing resistance caused by the condensation of exhaled moisture is avoided, overcoming the bottleneck faced by traditional nonwovens and paving a new way for developing protective respirators with high wear comfortability.
研究领域:
材料科学
·
医学
·
公共卫生
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·
IF 18.5
Zhen Wang,Yang Liu,Yunjie Guo,Jiasong Lin,Lizhong Liu,Kejia You,Qinghong Lin,Jiayu Sun,Liangxu Lin,Yi Zhao,Wei Huang
Sodium-ion batteries (SIBs) are promising alternatives to lithium-ion batteries with similar working principles, cell structures, and material systems. However, attaining long-term stability and high-capacity performance of SIBs at ultrahigh rates remains a significant challenge due to the large ionic radius and slow kinetic behavior of Na + . Herein, a novel robust anode with a dual-biomimetic gradient hierarchical architecture is proposed and provide a simple strategy to fabricate this sulfur-doped mesoporous carbon concave hollow sphere/Ti 3 C 2 T x MXene (SCMX) anode. In addition, Cu 2 S nanoparticles are in situ embedded into the SCMX architecture by electrochemical induction during the cycling process to act as active sites, which enhances the rate performance and cycling stability. Relying on its hybrid architecture and in situ formed Cu 2 S, this SCMX anode can achieve high ion accessibility, rich active sites, rapid charge transfer, and favorable structure stability, as disclosed by in/ex situ characterizations. As a result, it exhibits high reversible capacity (745.6 mAh g −1 at 0.2 A g −1 ), ultrahigh-rate capability (380.5 mAh g −1 at 50.0 A g −1 ), and long cycling stability (98.2% capacity retention after 10 000 cycles at 80.0 A g −1 ). This work is anticipated to accelerate the development of high-performance SIBs and offer distinctive inspiration for the design of electrode structures/systems.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
Pharmaceutics
·
2023
·Vol. 15
·期 12
·2785
·
IF 5.4
Ziyue Xi,Yingying Jiang,Zitong Ma,Qun Li,Xinran Xi,Chuanyong Fan,Shuang Zhu,Junjie Zhang,Lu Xu
The nano-delivery system with a dual biomimetic effect can penetrate deeper in tumor microenvironments (TMEs) and release sufficient antitumor drugs, which has attracted much attention. In this study, we synthesized erythrocyte-like mesoporous silica nanoparticles (EMSNs) as the core loaded with doxorubicin (DOX) and coated them with calcium phosphate (CaP) and erythrocyte membrane (EM) to obtain DOX/EsPMs. The transmission electron microscopy (TEM), fluorescent co-localization and protein bands of SDS-PAGE were used to confirm the complete fabrication of EsPMs. The EsPMs with erythrocyte-like shape exhibited superior penetration ability in in vitro diffusion and tumor-sphere penetration experiments. Intracellular Ca2+and ROS detection experiments showed that the CaP membranes of EsPMs with pH-sensitivity could provide Ca2+continuously to induce reactive oxide species’ (ROS) generation in the TME. The EM as a perfect “camouflaged clothing” which could confuse macrophagocytes into prolonging blood circulation. Hemolysis and non-specific protein adsorption tests proved the desirable biocompatibility of EsPMs. An in vivo pharmacodynamics evaluation showed that the DOX/EsPMs group had a satisfactory tumor-inhibition effect. These advantages of the nano-erythrocytes suggest that by modifying the existing materials to construct a nano-delivery system, nanoparticles will achieve a biomimetic effect from both their structure and function with a facilitated and sufficient drug release profile, which is of great significance for antitumor therapy.
研究领域:
药剂学
·
肿瘤学
·
生物材料学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Frontiers of Environmental Science & Engineering
·
2024
·Vol. 18
·期 4
·1-17
·
IF 6.1
Peng Huiting,Chen Yan,Lin Jiaopan,Benally Chelsea,El-Din Mohamed Gamal,Gao Junkai
Recently, research on hydrogel materials with a porous structure and superior water absorption capabilities significantly grown. However, the hydrogel under gravity-driven separation conditions often exhibit an unstable pore structure, poor mechanical properties, and limited functionality. To this end, this work presents a novel approach that combines a macro-micro double bionic strategy with a triple crosslinking method to develop a multifunctional alginate composite hydrogel filter (2%-SA-κ-CG-PVA-Ca 2+ , 2%-SKP-Ca 2+ for short) with a stable pore structure and superior mechanical properties, which possessed an umbrella-shaped structure resembling that of jellyfish. The 2%-SKP-Ca 2+ filter was synthesized using polyvinyl alcohol (PVA) as a stable structure-directing agent, and sodium alginate (SA) and κ-carrageenan (κ-CG) as polymer hydrogels. The distinctive umbrella-shaped hydrogel of 2%-SKP-Ca 2+ filter, formed through the triple crosslinking method, overcomes the limitations of unstable pore structure and poor durability seen in hydrogels prepared by traditional crosslinking methods. Furthermore, the utilization of the 2%-SKP-Ca 2+ filter in water treatment demonstrates its good selective permeability, excellent resistance to fouling, and extended longevity, which enables it to simultaneously achieve the multifunctional water purification and the coating of multi-substrate anti-fouling coatings. Therefore, not only does this research provide an efficient, multifunctional, highly pollution-resistant preparation method for designing a new filter, but it also confirms the application prospect of the macro-micro dual bionic strategy developed in this study in complex water treatment.
研究领域:
环境科学
·
材料科学
·
化学工程
·
水处理技术
·
仿生学
✓ 已验证
DOI
高影响因子
Advanced Science
·
2025
·
IF 14.1
Junyao Cheng,Hufei Wang,Ming Li,Jianpeng Gao,Xiao Liu,Chuyue Zhang,Pengfei Chi,Bo Li,Yuan Xve,Daoyang Fan,Zheng Wang,Jianheng Liu,Xing Wang,Licheng Zhang
The development of bone adhesives capable of restoring natural bone structure and function represents a pioneering advancement in surgical technology, offering significant potential to improve the treatment outcomes of comminuted fractures. However, the development of a clinically demand-driven adhesive, ensuring both reliable adhesion and osteogenic activity, poses a significant challenge. Herein, a structurally and functionally dual-biomimetic bone adhesive is developed through the design of an organic–inorganic network-enhanced hydrogel, which integrates caffeic acid-grafted collagen (CAC), aminated laponite (ALAP), and N-hydroxysuccinimide ester-terminated polyethylene glycol (tetra-PEG-SC). Benefiting from nanosheet-induced strengthening, the mechanically reinforced adhesive can maintain integrity under extreme compression (98%) and tensile (600%) deformations, facilitating anatomical repositioning of rabbit radius and porcine femur fractures. Of greater importance, the adhesive accelerated fracture healing, potentially via ROS scavenging and immunomodulation, as evidenced by reduced oxidative stress and M2 macrophage polarization in vitro. Assessed through an innovative rabbit radius comminuted fracture model, the injectable bone adhesive demonstrates rapid and flexible adhesion of bone fragments in a blood-rich environment, as observed over the 2 fold improvement in biomechanical and radiological performance compared with commercially available cyanoacrylate adhesives. This intricately designed bone adhesive holds promise as a novel solution for addressing complex fracture cases in surgical treatment.
研究领域:
生物医学工程
·
生物材料
·
组织工程
·
骨科手术
·
免疫调节
·
纳米技术
✓ 已验证
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）