CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Haiyang Zhang,Hua Lai,Zhongjun Cheng,Dongjie Zhang,Wu Wang,Pengchang Liu,Xiaoyan Yu,Zhimin Xie,Yuyan Liu
Recently, inspired by gecko’s smart adhesion, many intelligent adhesive surfaces have been reported. However, all of these are focused on single adhesion to liquid or solid, to obtain a surface with switchable adhesion to both water and solid is still a challenge. Herein, by coating a layer of polyurethane (PU) with micropillar structures onto a shape memory polymer (SMP) substrate to imitate the skin and muscle of the gecko’s foot, respectively, we report a new shape memory film that can repeatedly display curved/unfolded shapes with the help of the excellent shape memory property. Research results indicate that besides the variation of the contact area, a proper surface energy is also crucial for the special adhesion. Furthermore, based on the smart adhesive performance, in-situ capture/release of both solid and liquid were demonstrated by using the film. This research proposes a film with tunable adhesion to both solid and liquid, which provides a fresh idea for designing novel adhesive film, and meanwhile broadens the application of the adhesive materials.
研究领域:
材料科学
·
高分子化学
·
表面工程
·
仿生学
·
功能材料
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Shumin Lin,Xurun Li,Yunjia Wu,Jiajia Chen,Shuang Luo,Yanan Zhao,Xinying Liu,Jialiang Li,Zewen Lin,Xiaolan Hu,Hao Xue,Hua Bai
The structural-functional integrated device optimizes the synergy between mechanical strength and functionality through advanced material design, offering broad application potential. In this work, a novel structural-functional integrated device designed to address the challenge of stress monitoring in fiber-reinforced composites is presented. By incorporating potassium sodium niobate piezoelectric material into carbon fiber-reinforced polymer composites, a load-bearing and piezoelectric integrated device is successfully developed. The device exhibits outstanding flexural strength of 377.7 MPa and a flexural modulus of 18.8 GPa, making it suitable for use as a structural material. Simultaneously, the device possesses intrinsic piezoelectric properties and can function as a mechanical sensor, demonstrating a linear voltage output over an exceptionally wide pressure range from 10 to 3.8 × 10⁴ N, which enables the monitoring of mechanical stress in the device. Through a carefully designed pattern of carbon fiber fabric, the device can also intelligently identify the location and magnitude of the applied pressure. This research achieves the integration of high mechanical strength and stress sensing functionality through material design, opening new avenues for the development and application of smart composite materials.
研究领域:
材料科学
·
力学
·
传感器技术
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·Vol. 34
·期 45
·2406236
·
IF 18.5
Hao-Yu Zhao,Xin Wang,Jing Wu,Chao Shu,Fu-Lin Gao,Changjun Li,Xiao-Hang Lu,Yan Zhang,Qianlong Wang,Xiaofeng Li,Zhong-Zhen Yu
To alleviate resource shortage and environmental pollution, solar energy can be converted into thermal energy stored in phase change materials and in turn generate electrical energy. To enhance the solar energy utilization efficiency of solar-thermal-electrical conversion devices and prevent the heat loss to the environment at night, an intelligent solar-responsive phase-change system is innovatively designed consisting of a graphene aerogel film/paraffin wax stamen with an ultra-high thermal conductivity of 46.7 W m −1 K −1 , and thermally preserving aerogel film/liquid crystal elastomer bilayer petals that can bend solar-responsively by the synergistic effect of solar-thermal energy conversion and heat-induced contraction. The solar-responsive phase-change system achieves daytime blooming for solar-thermal conversion with simultaneous energy storage and nighttime closing for minimizing heat loss to the environment, exhibiting a high solar-thermal conversion and energy storage efficiency of 89.4% and delaying its temperature drop by the thermal preservation effect of the petals. The assembled solar-responsive solar-thermal-electric generator can reach an output voltage of 1033.8 mV at a light intensity of 500 mW cm −2 and continue to generate electrical energy during nighttime, holding tremendous promise in efficient solar energy conversion, storage, and utilization.
研究领域:
材料科学
·
能源工程
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Xue-Min Yang,Jing-Xiang Lv,Meng-Ting Zheng,Qian-Ting Wang,Uwe Gohs,Kathrin Harre,Dan Xiao
The prospects of endowing the omnipresent hazardous substances with sensitive, safe, and stable life-like behaviors poses significant for the development of on–off switchable smart materials. Herewith, based on material-structural synergistic design, a multi-level responsiveness smart structures (VBGO) inspired by phospholipid biomolecules is self-assembled through asymmetric swelling and smart supramolecular nano-structures. Due to the outstanding sensitive of fire-warning nano-hybrid of functionalized cyclodextrin-graphene and highly stable substrate of vermiculite, the designed VBGO exhibits the high-sensitively fire alarm time (only 0.17 s) and super-along sustained fire alarm time (up to 249 s). Moreover, the VBGO displays significant increment in thermal stability and film-forming properties. Besides, given the asymmetrical and self-assembled smart structures, the VBGO exhibits the unique fast responses in their surrounding environments like fire, heat, light, humidity, and solvent vapor. Additionally, the on–off switchable mechanisms of fire-warning responsiveness, solvent-/humidity-/light-driven, shape memory and environmental awareness are presented systematically. This work introduces a sensitive, safe, and stable approach to designing multi-level responsive smart materials by modifying fire-warning bioinspired structures.
研究领域:
材料科学
·
仿生学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
CELLULOSE
·
2024
·Vol. 31
·期 6
·3805-3819
·
IF 4.9
Cao Hui,Cheng Zhenyu,Liu Jianan,Zhao Zhenzhen,Zhang Jincheng,Dai Manman,Cheng Lu,Wang Ying,Xia Xin,Ke Huizhen,Zhou Huimin
Flexible intelligent response devices are fabricated using several matrix materials. Among these, bacterial cellulose (BC) exhibits higher crystalline characteristics along with a higher degree of polymerization, elastic modulus, tensile strength, and water absorption. In this study, to further increase the response of fiber-based materials and expand their wearable applications, BC-based Janus fibers are prepared via wet spinning and used as fibrous intelligent response materials driven under photothermal stimulation. The BC-based Janus fibers exhibited excellent photothermal response with hydrophilic graphene oxide (GO)/BC as the actuation layer and hydrophobic graphene/BC as the supporting layer. When an infrared light was used to stimulate the GO side, the resulting dehydration and contraction of the GO side drove deformation. When the infrared stimulus was removed, the BC and GO quickly absorbed water and expanded owing to their favorable water-absorption properties. The material recovered its original straight shape, achieving reversible deformation. The experiment showed that the fibers prepared with 35 wt% GO and 100 wt% graphene exhibited a superior photothermal actuation performance compared to the BC fibers, GO/BC fibers, and graphene/BC fibers. When the actuation layer was exposed to infrared light for 27 s, the fibers started to bend upward along the illuminated section. After 55 s of exposure, the bending angle reached 135°. After the infrared light was turned off, the bent fibers returned to their original straight shape.
研究领域:
材料科学
·
生物医学工程
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Jie Wei,Chao Ma,Tingting Zhang,Ziqiang Shao,Yuxia Chen
Smart actuating materials have received tremendous attention due to their promising applications in miniaturized robots, integrated electronics and wearable devices. However, simultaneously achieving sensitive multi-stimuli responsiveness, preferable energy storage capability and adequate mechanical properties by one material in a simple yet efficient way remains a considerable challenge. Herein, we propose a novel multi-responsive nanocomposite film actuator consisting of negatively charged cellulose nanofibers (CNF), polydopamine-chelated MXene-Fe 3 O 4 nanohybrids (PMF) and positively charged carbon nanotubes (CCNT) via a cost-efficient electrostatic self-assembly approach. Benefiting from the laminated porous structure and compositional superiorities, including the water-induced swelling effect of CNF and PMF, conductive CCNT with countless interior hydrophobic channels and magneto-conductive properties of PMF, the optimized nanocomposite film actuator presents a high bending speed (100.5°/s), ultrashort actuation time (2.0 s), long-term stability (1005 cycles) and good magnetic response. These actuators can be assembled into a supercapacitor exhibiting an areal capacitance of 33.5 mF/cm 2 at 0.5 mA/cm 2 and good cycling stability with a capacitance retention of 80.5 % after 5000 cycles. Furthermore, the actuators are designed as soft robots with different motion modes, mechanical grippers for performing consecutive actions and an integrated circuit system to monitor surrounding humidity changes. This work provides inspiration to develop advanced nanocomposite materials for smart devices that require multifunction integration.
研究领域:
材料科学
·
纳米技术
·
智能设备
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Tingting Wang,Xiaotong Fan,Ruyu Li,Jiayun Xu,Junqiu Liu
Natural enzymes are expected to be used in biomedical fields due to their extensive antibacterial activity, good biocompatibility and resistance to bacteria. Herein, we constructed a multi-enzyme protein assembly with ultrathin single protein sheet structure by the strategy of interface assembly and developed an efficient and intelligent antibacterial system based on the combination of multi-enzymes. The multi-enzyme protein assembly not only displayed extremely high antibacterial activity, but can also be turned on and off through the denaturant induced folding and unfolding of natural enzymes, and this process can be realized for several reversible cycles. Such an intelligent antibacterial material provides the possibility for its application in biomedical and other fields.
研究领域:
生物医学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2015
·Vol. 26
·期 12
·9941-9948
·
IF 1.569
Zhang Rong,Lu Yi,Wei Ling,Fang Zhenggang,Lu Chunhua,Ni Yaru,Xu Zhongzi,Tao Shunyan,Li Peiwen
Double perovskite oxides Gd 0.8 Ca 0.2 BaCo 2 O 5+δ have been successfully prepared by EDTA-citrate complexation process. The prepared samples were characterized by means of thermogravimetry–differential analysis, X-ray diffraction, Fourier transform infrared spectroscopy techniques. These analyses suggested that pure Gd 0.8 Ca 0.2 BaCo 2 O 5+δ phase could be formed when the pH value was maintained above three and calcination temperature was higher than 850 °C. The conductivity properties analyzed by means of four probes method, scanning electron microscopy and X-ray photoelectron spectroscopy indicated an improvement in conductivity with a high value of nearly 1200 S/cm, which was due to an increase in the number of small polaron hopping conduction units, Co 3+ –O–Co 4+ . Interestingly, the Gd 0.8 Ca 0.2 BaCo 2 O 5+δ samples exhibited a semiconducting behavior through a wide range of temperature below 100 °C and a metallic behavior at 100–500 °C, thereby demonstrating that Gd 0.8 Ca 0.2 BaCo 2 O 5+δ could meet the requirements of a smart material.
研究领域:
材料科学
·
固体物理
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2016
·
IF 5.31
Yan Liu,Guoxing Zhong,Zhanchao Liu,Minjia Meng,Fangfang Liu,Liang Ni
The novel photoresponsive molecularly imprinted polymers (P-MIPs) based on mesoporous carriers were developed for selective recognition and intelligent separation of bisphenol A from the complex samples. P-MIPs were prepared using an azobenzene-containing monomer as the photosensitive monomer by a facile free radical polymerization, combining the stimuli responsive mechanism and imprinting technology. The physical property and structure of newly synthesized materials have been characterized, and their photoisomerization properties were studied. P-MIPs displayed a superior photoresponsive property. Interestingly enough, the template molecules can be easily bound in the recognition sites and released back into the solution under the alternating irradiation. Binding properties of P-MIPs were also further evaluated by batch adsorption experiments. They possessed specific recognition sites and higher affinity for BPA, and the maximal adsorption capacity was 27.06 μmol g −1 . Subsequently, the materials were also successfully applied to photocontrolled separation of BPA in real water sample with good recovery, indicating great applicability for selective removal specific analytes from complex environment. The present work mainly provided the deep analysis and useful insights concerning the feasibility of using stimuli responsive imprinted materials in intelligent separation system, which shows tremendous potential to establish a sustainable environment.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
Polymers
·
2022
·Vol. 14
·期 24
·5454
·
IF 4.967
Qijun Wu,Chao Ma,Lian Chen,Ye Sun,Xianshuo Wei,Chunxin Ma,Hongliang Zhao,Xiuling Yang,Xiaofan Ma,Chunmei Zhang,Gaigai Duan
Stimulus-responsive hydrogels are an important member of smart materials owing to their reversibility, soft/wet properties, and biocompatibility, which have a wide range of applications in the field of intelligent actuations. However, poor mechanical property and complicated fabrication process limit their further applications. Herein, we report a light-responsive tissue paper/hydrogel composite actuator which was developed by combining inkjet-printed tissue paper with poly(N-isopropylacrylamide) (PNIPAM) hydrogel through simple in situ polymerization. Due to the high strength of natural tissue paper and the strong interaction within the interface of the bilayer structure, the mechanical property of the composite actuator was highly enhanced, reaching 1.2 MPa of tensile strength. Furthermore, the light-responsive actuation of remote manipulation can be achieved because of the stamping graphite with high efficiency of photothermal conversion. Most importantly, we also made a few remotely controlled biomimetic actuating devices based on the near-infrared (NIR) light response of this composite actuator. This work provides a simple strategy for the construction of biomimetic anisotropic actuators and will inspire the exploration of new intelligent materials.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Yaowu Wang,Nan Lin,Yiheng Yue,Jianfeng Wang,Yinyan Li,Zhenping Wu,Shiqing Xu,Gongxun Bai
Near-infrared (NIR) phosphors have emerged as novel luminescent materials across various fields due to their unique advantages of high penetration and invisibility. However, there is currently a lack of intelligent NIR phosphors that can achieve multimode stimuli responsive for sensing applications. In this study, we employed a high-temperature solid-phase reaction to incorporate Pr3+ into Cr3+-doped gallate magnetite SrGa12O19 phosphor, yielding a multimode luminescent intelligent NIR phosphor. Also, due to the inherent cation vacancies and defects in the matrix, the material not only exhibits brighter photoluminescence but also exhibits distinct NIR mechanoluminescence at a lower load. Notably, Pr3+-doped SrGa12O19:Cr3+ also demonstrates extended persistent luminescence and thermoluminescence effects. Finally, we combined the phosphor with the blue LED chip to develop a new multifunctional NIR pc-LED. Leveraging NIR’s unique penetrating ability, it can persist in biological tissues for prolonged periods, enabling optical inspection and offering a novel approach to password protection for anticounterfeiting measures. This intelligent NIR phosphor solution significantly expands the application potential of NIR light in food quality assessment and analysis.
研究领域:
材料科学
·
光学工程
·
生物医学工程
✓ 已验证
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2025
·
IF 7.3
Peng Wang,Jingjing Zhang,Guangxu Zhao,Feng Hong,Hai Lin
Electrospun fluorescent graphene/polyacrylonitrile (R-AMG/PAN)(R-AMG was prepared by acid-modified graphene loaded with rare earth complexes.) and fluorescent graphite/chitosan/polyacrylonitrile (R-AMG/CS/PAN) membranes were incorporated into epoxy resin to develop a smart coating with fluorescence responsiveness to chloride ions (Cl − ), and a comprehensive comparison of both coatings was conducted to assess their ability for corrosion protection and early corrosion monitoring during salt spray testing. Fluorescent graphene is a source for detecting the corrosion behavior of coatings. The use of electrostatic spinning technology significantly enhances the fluorescent properties of graphene. Additionally, the fiber structure enhances the barrier properties of the coating. The work provides a meaningful strategy for the design of intelligent protective materials.
研究领域:
材料科学
·
防腐蚀工程
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）