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50 results on '"Ying, Wu Bin"'

5. Transmembrane Inspired Mechano‐Responsive Elastomers with Synergized Traction‐Assisted Healing and Dual‐Channel Sensing.

Author

Chen, Chao, Yu, Zhe, Tian, Ying, Li, Fenglong, Kong, Zhengyang, Ran, Xu, Wu, Xing, Lee, Kyung Jin, Kim, Do Hwan, Lee, Jung‐Yong, Zhu, Jin, and Ying, Wu Bin

Subjects
MACHINE learning, BIOMIMETIC materials, DEEP learning, MEMBRANE proteins, MUSCLE strength
Abstract

In the burgeoning field of bioinspired materials, the principles governing biological perception and self‐healing drive advancements in biomimetic mechano‐responsive materials, seamlessly integrating ionic signal sensing with self‐healing. While current research often emphasizes individual functionalities, the concurrent enhancement of both self‐healing and sensitivity in iontronic skins is often overlooked. Drawing inspiration from transmembrane proteins like TSP‐15, Piezo 1 and Piezo 2, renowned for recruiting repair factors, multifunctional molecular‐ionic regulatory sites are constructed within a polyurethane/ionic liquid composite system, leading to the development of a mechano‐responsive elastomer (i‐DAPU) that exhibited both rapid self‐healing (72 µm min−1) and impressive sensitivity (7012.05 kPa−1). Leveraging the dual functionalities of i‐DAPU in tandem with deep learning algorithms, a sophisticated system is devised for intelligently analyzing neural conditions in comatose patients based on muscle strength, achieving a remarkable 99.2% accuracy rate, holding significant promise for healthcare applications. [ABSTRACT FROM AUTHOR]

Published
2024
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18. Fully‐Printed Bionic Tactile E‐Skin with Coupling Enhancement Effect to Recognize Object Assisted by Machine Learning.

Author

Yu, Zhe, Mao, Yanghuan, Wu, Zhixin, Li, Fenglong, Cao, Jinwei, Zheng, Ya‐Nan, Zhong, Xiaolong, Wang, Lebin, Zhu, Jin, Gao, Pingqi, Ying, Wu Bin, and Liu, Gang

Subjects
BIONICS, MACHINE learning, SOFT robotics, THREE-dimensional printing, WEARABLE technology, INDUSTRIAL costs
Abstract

In the pursuit of tactile sensation resembling human skin, the electronic skin (E‐skin) has long been a subject of interest and inspires the exploration of various biomimetic structures. Nevertheless, the exceptional functionality of living organisms arises from the synergistic interplay of multiple internal factors, i.e. the coupling enhancement effect, which has received limited attention in existing studies. Here, a tactile E‐skin featuring a multicoupled biomimetic structure that mimics three coupling elements found in the skin: Stratum spinosum, Meissner corpuscle, and Piezo2 protein, is proposed. By amalgamating their distinguishing characteristics, this bionic E‐skin surpasses the performance of conventional counterparts such as sensitivity as high as 388.5 kPa−1, hysteresis as low as 0.76%, and response times as short as 10 ms. Furthermore, its fabrication methodology of efficient 3D printing shows great advantages in terms of production cost and customization. Finally, the sensor is expanded to a 9 × 9 pixels array for a machine learning‐assisted intellisense system to recognize the fruits as a human does, achieving an accuracy of 91.4%. All of these prove the promising potential of this multicoupled biomimetic structure in wearable electronics, human–machine interface, soft robotics, and artificial sensing. [ABSTRACT FROM AUTHOR]

Published
2024
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24. Azo‐Functionalized Thermoplastic Polyurethane for Light‐Driven Shape Memory Materials.

Author

Pan, Baohai, Park, Soon Mo, Ying, Wu Bin, Yoon, Dong Ki, and Lee, Kyung Jin

Subjects
SHAPE memory polymers, POLYURETHANES, SOFT robotics, AZO compounds, MEMORY, RESIDUAL stresses
Abstract

Shape memory polymers have great potential in the fields of soft robotics, injectable medical devices, and as essential materials for advanced electronic devices. Herein, light‐triggered shape‐memory thermoplastic polyurethane (TPU) is reported using azido TPU grafted by the photoswitchable azo compound. The trans–cis transitions of the azobenzene on the side chain of the TPU induce the recoiling of the main chain, leading to shaping memory behavior. Under UV irradiation, cis–azo allows the oriented main chain to recoil to release residual stress and realize light‐triggered shape memory behavior. The facile method proposed here for the preparation of azo‐functionalized TPU can provide viable opportunities for soft robotics and smart TPU applications. [ABSTRACT FROM AUTHOR]

Published
2023
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29. A Biologically Muscle‐Inspired Polyurethane with Super‐Tough, Thermal Reparable and Self‐Healing Capabilities for Stretchable Electronics

Author

Ying, Wu Bin, primary, Wang, Guyue, additional, Kong, Zhengyang, additional, Yao, Chen Kai, additional, Wang, Yubin, additional, Hu, Han, additional, Li, Fenglong, additional, Chen, Chao, additional, Tian, Ying, additional, Zhang, Jiawei, additional, Zhang, Ruoyu, additional, and Zhu, Jin, additional

Published
2021
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35. A Self‐Healing and Ionic Liquid Affiliative Polyurethane toward a Piezo 2 Protein Inspired Ionic Skin.

Author

Chen, Chao, Ying, Wu Bin, Li, Jiayi, Kong, Zhengyang, Li, Fenglong, Hu, Han, Tian, Ying, Kim, Do Hwan, Zhang, Ruoyu, and Zhu, Jin

Subjects
*IONIC liquids, *CONDUCTING polymers, *POLYURETHANES, *BIOCOMPATIBILITY, *ELECTROSTATIC interaction, *POLYURETHANE elastomers, *SERS spectroscopy, *HEALING
Abstract

Ionic skin (I‐Skin) has the advantage of feasible compatibility with biological systems. Nevertheless, developing a stable and durable ionic skin is challenging. Here, an ionic polyurethane (i‐PU) is synthesized, which is capable of self‐healing and able to lock the ionic liquids (ILs). In detail, an ionic chain extender containing an ammonium cationic group is synthesized, followed by the polymerization to obtain the target i‐PU. Through electrostatic interaction and chain diffusion, the i‐PU can be fully self‐healed at room temperature within 400 min. Afterward, low contact angle (37°) of the i‐PU against IL and the density functional theory (DFT) calculation prove their good compatibility and strong interaction, originating from the electrostatic interaction. The Raman intensity map shows the reversible process of the enrichment and restoration of ionic concentration on the i‐PU/IL surface when external pressure is applied or released, proving stable binding of ions by ionic polymer chains. Lastly, the self‐healing I‐Skin based on the i‐PU/IL is fabricated with a wide range of pressures (0–120 kPa), fast response time (32 ms), excellent antifatigue property (2% attenuation after 1000 cycles), and remarkable sensitivity (52.4 kPa–1). [ABSTRACT FROM AUTHOR]

Published
2022
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50. Zirconium Hydroxide-coated Nanofiber Mats for Nerve Agent Decontamination.

Author

Kim S, Ying WB, Jung H, Ryu SG, Lee B, and Lee KJ

Subjects
Nerve Agents toxicity, Surface Properties, Decontamination methods, Hydroxides chemistry, Nanofibers chemistry, Nerve Agents chemistry, Nerve Agents isolation & purification, Zirconium chemistry
Abstract

Diverse innovative fabrics with specific functionalities have been developed for requirements such as self-decontamination of chemical/biological pollutants and toxic nerve agents. In this work, Zr(OH) 4 -coated nylon-6,6 nanofiber mats were fabricated for the decontamination of nerve agents. Nylon-6,6 fabric was prepared via the electrospinning process, followed by coating with Zr(OH) 4 , which was obtained by the hydrolysis of Zr(OBu) 4 by a sol-gel reaction on nanofiber surfaces. The reaction conditions were optimized by varying the amounts of Zr(OBu) 4 ,the reaction time, and the temperature of the sol-gel reaction. The composite nanofibers show high decontamination efficiency against diisopropylfluorophosphate, which is a nerve agent analogue, due to its high nucleophilicity that aids in the catalysis of the hydrolysis of the phosphonate ester bonds. Composite nanofiber mats have a large potential and can be applied in specific fields such as military and medical markets., (© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.)

Published
2017
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