Fagla Jules Mawignon

Xi'an Jiaotong University

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Liguo Qin

Xi'an Jiaotong University

Ange Nsilani Kouediatouka

Xi'an Jiaotong University

Shan Lu

Xi'an Jiaotong University

Guangneng Dong

Xi'an Jiaotong University

Hao Yang

Beijing University of Chemical Technology

Zeyu Ma

Xi'an Jiaotong University

Yali Zhang

Jilin Agricultural University

Jianbo Liu

Hunan University

Jiawei Wang

Tianjin University

Qi Liu

Wuhan University

Cooperative Institutions

Xi'an Jiaotong University

Northwestern Polytechnical University

Chinese Academy of Sciences

Tsinghua University

Sichuan University

Hunan University

China XD Group (China)

Nanjing University

Chinese Academy of Medical Sciences & Peking Union Medical College

University of Science and Technology Beijing

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Self-Powered Tactile Sensors Embedded with Self-Healing Electrodes for Multifunctional Applications

ACS Applied Materials & Interfaces (2024)

Liguo Qin Wentao Xia Yuhao Wu Xiaodong Huang Ange Nsilani Kouediatouka

Tactile-based sensing technology represents one of the most promising methods for interacting with their surrounding environment. Consequently, flexible tactile sensing has garnered significant attention from researchers worldwide. In this study, triboelectricity and piezoelectricity were combined to propose a multifunctional self-powered tactile sensor (MSPTS). Notably, new and innovative self-healing electrodes were embedded and synthesized from HPDMS (poly(dimethylsiloxane)) and boric acid in the MSPTS, MSPTS demonstrated a linear detection range of 0.25–5 kPa with a sensitivity of 246.28 mV/kPa, indicating substantial improvements in sensor sensitivity, output performance, and anti-interference capability. Our method of forming hydrogen bonds between a self-healing material (SHM) and a liquid metal (LM) effectively addressed the issue of LM leakage within the flexible matrix under pressure, thus preventing sensor failure. The borate dynamic bonding conferred self-healing properties to the electrode when it was damaged. The MSPTS was successfully applied to pressure detection, material identification, and human body movement detection, significantly broadening the application range of flexible electronic devices.

Self-healing material

Tactile sensor

10.1021/acsami.4c14518

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Citations (0)

Sensing characterization of an amorphous PDMS/Ecoflex blend composites with an improved interfacial bonding and rubbing performance

Applied Surface Science (2023)

Ange Nsilani Kouediatouka Qi Liu Fagla Jules Mawignon Wei Wang Jiawei Wang

Gauge factor

Polydimethylsiloxane

Hysteresis

10.1016/j.apsusc.2023.157675

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Citations (13)

Eco-friendly polysaccharide coatings for antifouling and drag-reduction and potential application for marine devices

Friction (2023)

Hao Yang Liguo Qin Wenhui Zhao Fagla Jules Mawignon Hui Guo

Abstract Traditional antifouling agents usually have a certain toxic effect on marine environments and non-target organisms. In this study, Dictyophora indusiata polysaccharide (DIP) was applied as a natural antifouling surface modifier to prepare the surface coating for marine antifouling. Three DIP coatings were prepared: D. indusiata spore polysaccharide (DISP), D. indusiata volva polysaccharide (DIVP), and D. indusiata embryonic body polysaccharide (DIEP). The antifouling, tribological, and anticorrosion behavior of the coatings were examined. Results revealed that the three kinds of DIP coatings had excellent antifouling properties, which could effectively prevent the adhesion of Chlorella and the attachment of water-based and oily stains on the surface. Additionally, the coatings showed great mechanical stability and could maintain an extremely low coefficient of friction (COF < 0.05) after continuous wear. The drag reduction rate of the coated surfaces reached 5%, showing a powerful lubrication performance. Furthermore, the DIP coatings presented an outstanding corrosion resistance, where the equivalent circuit impedances were 4–9 orders of magnitude higher than the control groups. This research showed a promising prospect of surface coating fabrication with DIP for marine devices to achieve the purpose of antifouling and drag reduction.

Biofouling

Environmentally Friendly

10.1007/s40544-023-0797-8

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Citations (17)

Synergistic effect of sharkskin-inspired morphologies and surface chemistry on regulating stick-slip friction

Tribology International (2023)

Liguo Qin Xiaodong Huang Zongsheng Sun Zeyu Ma Fagla Jules Mawignon

Polydimethylsiloxane

Soft materials

Rough surface

10.1016/j.triboint.2023.108765

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Citations (19)

A facile method to fabricate the durable and self-protective coating for marine applications

Surface and Coatings Technology (2022)

Hao Yang Liguo Qin Fei Wang Fagla Jules Mawignon Mochen Dong

Polydimethylsiloxane

Biofouling

10.1016/j.surfcoat.2022.129124

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Citations (10)

Pressure-Activatable Liquid Metal Composites Flexible Sensor with Antifouling and Drag Reduction Functional Surface

ACS Applied Materials & Interfaces (2023)

Zeyu Ma Shan Lu Yuhao Wu Xiaodong Zhang Yufan Wei

Flexible sensors produced through three-dimensional (3D) printing have exhibited promising results in the context of underwater sensing detection (for applications in navigational vehicles and human activities). However, underwater vehicles and activities such as swimming and diving are highly susceptible to drag, which can cause negative impacts such as reduced speed and increased energy consumption. Additionally, microbial adhesion can shorten the service life of these vehicles. However, natural organisms are able to circumvent such problems, with shark skin offering excellent barrier properties and ruffled papillae providing effective protection against fouling. Here, we show that a sandwich system consisting of a spraying layer, conductive elastomer composite, and encapsulation layer can be printed for multifunctional integrated underwater sensors. The modulated viscoelastic properties of liquid metal form the foundation for printing features, while its pressure-activated properties offer the potential for switchable sensors. An integrated drag reduction and antifouling layer were created by combining the shark skin surface shield scale structure with the lotus leaf surface papillae structure. A 3D-printed flexible sensor was designed using our approach to monitor attitude changes and strain in underwater environments, showcasing its capabilities. Our printed sensors can reduce biological attachment density by more than 50% and reduce underwater drag by 8.6-10.3%.

Biofouling

10.1021/acsami.3c12910

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Citations (14)

Highly strong bio-inspired ZnO/PDMS superhydrophobic surface with drag reduction and antibacterial properties

Tribology International (2023)

Fagla Jules Mawignon Liguo Qin Ange Nsilani Kouediatouka Shan Lu Hao Yang

Biofouling

Polydimethylsiloxane

10.1016/j.triboint.2023.109003

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Citations (14)

A facile method for fabricating super-slippery surface with long term and high-efficiency sustained release performance

Progress in Organic Coatings (2022)

Liguo Qin Hao Yang Fagla Jules Mawignon Yali Zhang Guangneng Dong

Penetration (warfare)

Immersion

10.1016/j.porgcoat.2022.107275

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Citations (11)

Economic Friendly ZnO-Based UV Sensors Using Hydrothermal Growth: A Review

Materials (2021)

Liguo Qin Fagla Jules Mawignon Mehboob A. Hussain Ange Nsilani Kouediatouka Shan Lu

Ultraviolet (UV) sensors offer significant advantages in human health protection and environmental pollution monitoring. Amongst various materials for UV sensors, the zinc oxide (ZnO) nanostructure is considered as one of the most promising candidates due to its incredible electrical, optical, biomedical, energetic and preparing properties. Compared to other fabricating techniques, hydrothermal synthesis has been proven to show special advantages such as economic cost, low-temperature process and excellent and high-yield production. Here, we summarize the latest progress in research about the hydrothermal synthesis of ZnO nanostructures for UV sensing. We particularly focus on the selective hydrothermal processes and reveal the effect of key factors/parameters on ZnO architectures, such as the laser power source, temperature, growth time, precursor, seeding solution and bases. Furthermore, ZnO hydrothermal nanostructures for UV applications as well as their mechanisms are also summarized. This review will therefore enlighten future ideas of low-temperature and low-cost ZnO-based UV sensors.

Ultraviolet

Hydrothermal Synthesis

Environmentally Friendly

10.3390/ma14154083

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Citations (42)

Fixed-bed column method for removing arsenate from groundwater using aluminium-modified kapok fibres

Journal of Porous Materials (2023)

Kanfolo Franck Herve YEO Yingying Dong Tongxuan Xue Ye Yang Zhiwen Chen

Endothermic process

Specific surface area

BET theory

10.1007/s10934-022-01420-0

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Citations (7)