Advanced Science
·
2022
·Vol. 9
·期 11
·2104969
·
IF 17.521
Guozhen Li,Shiqiang Liu,Qian Mao,Rong Zhu
Human–robot collaboration is playing more and more important roles in current deployments of robotic systems in our lives. Haptic perception and intelligent control are essential to ensure safety and efficiency of human–robot interaction. However, existing robotic sensory and control systems are deficient in terms of performance issues, complexity, and cost. Here, the authors report a multifunctional electronic skin (e-skin) incorporating multiple perceptions with intelligent robotic control, by which robots can safely and dexterously interact with humans. The e-skin with a simple and cost-effective sensory structure has multimodal perceptions of proximity, temperature, contact force, and contact position with broad measuring range, high sensitivity, and fast response. The e-skin is applied onto robots to accomplish obstacle avoidance, safe and dexterous human–robot interaction, smart teaching, and playing Tai-Chi, which demonstrate a broad range of applications for intelligent robots equipped with e-skins.
研究领域:
机器人学
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材料科学
·
人工智能
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Advanced Composites and Hybrid Materials
·
2021
·Vol. 5
·期 1
·195-208
·
IF 5.693
Luo Xin,Lai Hua,Cheng Zhongjun,Liu Pengchang,Li Yufen,Liu Yuyan
Smart slippery surfaces with intelligent liquid droplet manipulation performance have aroused much attention. The lubricant and surface microstructure are two key factors that govern the droplet’s sliding performance. However, for almost all existing surfaces, only one factor can be regulated, which significantly limits their wetting performances and applications. Herein, by integrating the temperature-responsive lubricant and shape memory surface microstructure, we report a novel slippery surface. On this surface, the solid/liquid phase transition of the lubricant provides the surface with the ON/OFF control for droplet’s movement between the sliding state and pinning state, and the tunable surface microstructure based on material’s shape memory effect offers the programmable sliding directions. Due to the combined effect, diverse liquid transportation programs with random ON/OFF manner and arbitrary direction were further demonstrated on this surface. This work advances a new slippery surface with controllable lubricant and surface microstructure, which not only provides insights into the design for smart slippery surfaces but also provides a promising material for application in smart control of droplet motion. Graphical abstract
A novel shape memory slippery surface is prepared, on which both the lubricant and surface microstructure can be reversibly controlled.
研究领域:
材料科学
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Xiaoyan Yu,Sibo Kang,Xiaoyu Jiao,Hua Lai,Ruijie Wang,Zhongjun Cheng
Recently, Janus membranes with particular ability in unidirectional water permeation, known as “water diode”, have attracted increased attention. However, almost all existing Janus membranes are focused on controlling water permeation in air, similar membranes can work in complicated environments, such as oil, are still quite unusual, let alone with smart controllability. Herein, we report a TiO 2 nanostructures coated mesh membrane. The membrane’s surface wettability can be reversibly switched between uniformly underoil superhydrophobicity and Janus underoil hydrophobicity/hydrophilicity as unilateral UV irradiation and heating are alternately carried out, consequently, on/off control of water permeation between blocking state and unidirectional penetrating state can be realized. Moreover, by controlling the size of the region irradiated by UV light for 50 min, penetrating channels with controlled size can be designed. Based on this advantage, different independent penetrating channels with diameter from 2 mm to 10 mm can be obtained, and precise control of water permeation flux from 48,432 Lm −2 h −1 to 70,553 Lm −2 h −1 can be achieved. Finally, based on the excellent controllability, some significant applications such as the removal of water from oil, underoil multichannel chemical reaction, and droplet pumping were also demonstrated. This work reports a new membrane with smart underoil water permeation controllability, given its controllability and particular wetting performance, it is potentially used in many fields, for example, oil purification, droplet manipulation, and microfluidic devices .
研究领域:
材料科学
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界面化学
·
微流控技术
✓ 已验证
产品关联
DOI
高影响因子
Advanced Materials Interfaces
·
2021
·Vol. 9
·期 1
·2101660
·
IF 6.147
Dongdong Hu,Hua Lai,Zhongjun Cheng,Yingbin Song,Xin Luo,Dongjie Zhang,Zhimin Fan,Zhimin Xie,Yuyan Liu
Droplet manipulation plays an important role in many fields, and smart adhesion control on superhydrophobic surfaces is widely accepted as an effective strategy. However, some imperfections such as long response time and deformable elastic materials are still difficult to be avoided for existing methods. Herein, a new strategy is reported to reversibly control the surface adhesion and droplet's sliding without the change of surface chemistry and microstructure. A novel superhydrophobic surface is prepared by integrating a substrate with a certain size of NdFeB magnetic region and a hydrophobic SiO 2 coating. The magnetic region on the surface is highly adhesive, which can pin a superparamagnetic droplet tightly. As an external magnet (EM) with opposite direction of magnetic flow to the NdFeB magnetic region is put above the droplet, the droplet rolls off as the surface is tilted, indicating that the high adhesive region has turned into the low adhesive state and in situ droplet's sliding control is realized. After removing the EM, the magnetic region on the surface can regain the high adhesion, demonstrating an excellent controllability. Finally, based on the smart controllability, the surface with several magnetic regions is designed and on-demand storage/release control of different droplets is demonstrated.
研究领域:
材料科学
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界面化学
·
微流控技术
✓ 已验证
产品关联
DOI
高影响因子
Nano-Micro Letters
·
2023
·Vol. 15
·期 1
·1-13
·
IF 26.6
Zhou Bo,Liu Jize,Huang Xin,Qiu Xiaoyan,Yang Xin,Shao Hong,Tang Changyu,Zhang Xinxing
A fully self-powered bimodal sensor is designed for patterned-displaying the force trajectories.
Outstanding mechanoluminescence is achieved with a stimulation force as low as 0.3 N and 2000 cycles reproducibility.
The designed bimodal sensor exhibits good potential for handwriting input to achieve visual intelligent control.
研究领域:
材料科学
·
传感器技术
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智能系统
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Advanced Materials Interfaces
·
2023
·Vol. 10
·期 16
·2300045
·
IF 5.4
Yimin Luo,Boran Hao,Jingbo Li,ZhiPeng Liu,Yujie Yang,Litao Chen,Shuaikang Liu,Zhuangzhu Luo
In this work, a simple anti-fingerprint strategy (reduced ≈40–60%) to rearrange fingerprint droplets by patterned micro/nano-pore/spoons texture, air cushion and low surface energy is reported. Superior to previous precise and complex preparation methods, the micro/nano-texture are fabricated through conventional process of spray and dip. The pore and spoon can be freely switched by changing the process. The number (N) and size (r) of pores and spoons are controlled intelligently by solvent volatilization and interfacial tension ( γ FP/PU − H 2 O ${{\bm{\gamma }}_{{\rm{FP/PU}}{\bm{ - }}{{\rm{H}}_2}{\rm{O}}}}$ and γ FP/PU − Solvent ), the key for pore/spoon's forming and expanding. A physical model of interface intelligent controlling the micro/nano-pore/spoon surface texture induced by “Vacancy-Capture” is proposed. The description is being reported, for the first time, to the knowledge, expecting to make it possible to prepare anti-fingerprint engineering materials with newly potential industrial applications on optical device for large-scale in the future.
研究领域:
材料科学
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 21
·2300321
·
IF 19
Xiaoyan Qiu,Jize Liu,Bo Zhou,Xinxing Zhang
Imitating mechano-sensing luminescence of organisms has long been envisaged to achieve dynamic and real-time visualized information display, however, it remains challenging to recreate the skin-like visual sensation functions in artificial sensors. Here, a bioinspired mechanosensor is presented with mechanoluminescent/triboelectric hierarchical structure that is capable of pressure perception and patterning display in real time. Interestingly, a facilitative effect of interfacial triboelectric field on luminescent output and pressure visualization was found. The developed mechanosensor shows self-powered, bimodal, and real-time patterning sensation behavior with a low force detection limit (0.082 N), high sensitivity (9.69 a.u. N −1 ), fast response (35 ms), and good reliability (5000 cycles). On this basis, an intelligent control system is further constructed via combining image machine learning approach. This study not only addresses the long-lasting challenge of real-time pressure visualized display, but also boosts the further development of untethered, small-scale, and efficient intelligent systems.
研究领域:
材料科学
·
生物医学工程
·
传感技术
✓ 已验证
产品关联
DOI
高影响因子
LANGMUIR
·
2017
·
IF 3.833
Yongmin Zhang,Shuang Guo,Xiaofei Ren,Xuefeng Liu,Yun Fang
Herein, we described for the first time a CO2 and redox dual responsive paraffin oil-in-water Pickering emulsion stabilized by the modified silica nanoparticles with Se-containing tertiary amine, SeTA, in which the tertiary amine serves as a CO2-sensitive group, and the Se atom serves as a redox-sensitive center. The Pickering emulsion can be reversibly switched between stable and unstable states by bubbling CO2 and N2 in the reduced state, or with the addition of H2O2 and Na2SO3 in the absence of CO2, because of the adsorption and desorption of SeTA on the silica surface. The former is mainly attributed to a CO2-controllable electrostatic attraction, resulting from the transition of molecules between cationic and nonionic states; whereas, the latter is ascribed to a redox-tunable hydrogen bonding, originating from the transition of molecules between selenide and selenoxide. However, in the presence of CO2, redox can only induce a change in the droplet size, not demulsification. These interesting and unique multiresponsive behaviors endow the Pickering emulsion with a capacity for intelligent control of emulsification and demulsification, as well as the droplet size, which may be an asset for a myriad of technological applications in biomedicine, microfluidics, drug delivery, and cosmetics.
研究领域:
材料科学
·
化学工程
·
生物医药
✓ 已验证
产品关联
DOI
PubMed
高影响因子
TEXTILE RESEARCH JOURNAL
·
2016
·
IF 1.299
Yangyi Chen,Jie An,Qi Zhong,Peter Müller-Buschbaum,Jiping Wang
The smart control of cotton fabric comfort by cross-linking thermo-responsive random copolymer is investigated. The monomers 2-(2-methoxyethoxy) ethoxyethyl methacrylate (MEO2MA) and ethylene glycol methacrylate (EGMA) with a molar ratio of 17:3 are selected to synthesize the thermo-responsive random copolymer poly(2-(2-methoxyethoxy) ethoxyethyl methacrylate-co-ethylene glycol methacrylate), abbreviated as P(MEO2MA-co-EGMA). By using citric acid as a cross-linking agent, the obtained P(MEO2MA-co-EGMA) is successfully immobilized onto cotton fabrics. Smart control is achieved from the thermo-responsive behavior of the copolymer. Cross-linked P(MEO2MA-co-EGMA) will collapse when the ambient temperature exceeds its transition temperature. Therefore, the formerly compact P(MEO2MA-co-EGMA) layer will switch to a porous structure, and the air/moisture permeability of the textiles is enhanced. As the comfort of the textiles is closely related to the air/moisture permeability, a smart control of the cotton fabric comfort can be realized. In addition, the softness of cotton fabrics with and without thermo-responsive polymers does not show a prominent change, even when the applied solution concentration is as high as 16% (wt%). On the contrary, the stiffness of the cotton fabric coated with poly(N-isopropylacrylamide) (PNIPAM) is significantly higher than the original cotton fabric, indicating that homo PNIPAM is less suitable for textiles used in daily lives. Moreover, the whiteness and mechanical properties are studied and stay unchanged after cross-linking. As a consequence, the introduction of P(MEO2MA-co-EGMA) into textiles can provide textiles with smart control of cotton comfort, and it will not influence the wearabilities of the textiles.
研究领域:
纺织科学
·
聚合物化学
·
材料科学
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Jianjie Li,Xiaoli He,Huaide Jiang,Yi Xing,Bi Fu,Chengzhi Hu
Advances in the versatile design and synthesis of nanomaterials have imparted diverse functionalities to Janus micromotors as autonomous vehicles. However, a significant challenge remains in maneuvering Janus micromotors by following desired trajectories for on-demand motility and intelligent control due to the inherent rotational Brownian motion. Here, we present the enhanced and robust directional propulsion of light-activated Fe3O4@TiO2/Pt Janus micromotors by magnetic spinning and the Magnus effect. Once exposed to a low-intensity rotating magnetic field, the micromotors become physically actuated, and their rotational Brownian diffusion is quenched by the magnetic rotation. Photocatalytic propulsion can be triggered by unidirectional irradiation based on a self-electrophoretic mechanism. Thus, a transverse Magnus force can be generated due to the rotational motion and ballistic motion (photocatalytic propulsion) of the micromotors. Both the self-electrophoretic propulsion and the Magnus force are periodically changed due to the magnetic rotation, which results in an overall directed motion moving toward a trajectory with a deflection angle from the direction of incident light with enhanced speed, maneuverability, and steering robustness. Our study illustrates the admirable directional motion capabilities of light-driven Janus micromotors based on magnetic spinning and the Magnus effect, which unfolds a new paradigm for addressing the limitations of directionality control in the current asymmetric micromotors.
研究领域:
纳米材料
·
物理化学
·
智能控制
✓ 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）