Article
Nanoscience & Nanotechnology
Liyun Xu, Lili Yang, Shu Yang, Zhao Xu, Gaojian Lin, Jianjun Shi, Ruiyun Zhang, Jianyong Yu, Dengteng Ge, Ying Guo
Summary: By mimicking the deformation adaptability of soft earthworm skin, researchers have developed an ultra-durable superhydrophobic fabric using PDMS with uniform wrinkles. The fabric shows extraordinary durability, withstanding numerous standard laundries and rubbing cycles, and is self-healable after heat or plasma treatment. This innovative engineering approach provides a pathway for designing ultra-durable, multifunctional wearables.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Electrical & Electronic
Taewi Kim, Insic Hong, Yeonwook Roh, Dongjin Kim, Sungwook Kim, Sunghoon Im, Changhwan Kim, Kiwon Jang, Seongyeon Kim, Minho Kim, Jieun Park, Dohyeon Gong, Kihyeon Ahn, Jingoo Lee, Gunhee Lee, Hak-Seung Lee, Jeehoon Kang, Ji Man Hong, Seungchul Lee, Sungchul Seo, Bon-Kwon Koo, Je-sung Koh, Seungyong Han, Daeshik Kang
Summary: The recent advances in wearable sensors have shown remarkable progress, but they still have limitations that require sensor refabrication for target signal tuning. However, biological sensory systems have the inherent ability to adjust their sensitivity to the external environment, allowing for broader and enhanced detection. In this study, a Tunable, Ultrasensitive, Nature-inspired, Epidermal Sensor (TUNES) was developed, which significantly increased strain sensitivity (GF similar to 30k) and allowed for tuneable pressure sensitivity (10-254 kPa(-1)) through preset membrane tension. The sensor demonstrated the capability to measure a wide range of pressures (0.05 Pa-25 kPa) with optimal performance, making it suitable for wearable health monitoring systems and home healthcare applications.
NPJ FLEXIBLE ELECTRONICS
(2023)
Article
Materials Science, Multidisciplinary
Han Liu, Long Yu, Bingqian Zhao, Yezhou Ni, Peng Gu, Hua Qiu, Wan Zhang, Kunlin Chen
Summary: A hybrid hydrogel with self-healing ability and environmental responsiveness has been developed in this study. This hydrogel exhibits excellent sensing and color-changing properties, making it suitable for monitoring human actions in wearable devices. The damaged parts of the hydrogel can self-repair due to the strong bonds among the polyacrylate, zinc ions, and microcapsules. Additionally, the hydrogel undergoes rapid color change under thermal or UV stimulus, enabling monitoring of human physiological health and achieving adaptive camouflage. This smart hybrid hydrogel has promising applications in human body monitoring, safety warning, adaptive camouflage, and artificial intelligence for wearable electronic devices.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Construction & Building Technology
Ainagul Jumabekova, Julien Berger, Tessa Hubert, Antoine Dugue, Tingting Vogt Wu, Thomas Recht, Christian Inard
Summary: This article proposes a framework to model and predict the energy performance of an adaptive facade. The study utilizes a bio-inspired concept called Stegos, which manages thermal transfers through the facade by changing the color and position of rotating flaps. By testing a prototype in real weather conditions and applying the Modal Identification Method (MIM), the reduced order model accurately predicts heat flux values when the flaps are closed or fully open. Additionally, a Model Predictive Control (MPC) is implemented to determine optimal configurations for better energy efficiency.
ENERGY AND BUILDINGS
(2023)
Article
Fisheries
Tran Thi Thanh Hien, Trinh Van Loc, Tran Le Cam Tu, Tran Minh Phu, Pham Minh Duc, Hua Thai Nhan, Pham Thanh Liem
Summary: The study found that supplemental carotenoid pigments did not significantly affect the growth performance of the bighead catfish, but had a noticeable impact on the color of the muscle. Farmers and feed producers could utilize Xa at an optimal dose of 75 mg/kg to enhance the color performance of bighead catfish for at least 4 weeks prior to harvest.
Article
Immunology
Yang Feng, Jiao Wang, Wei Fan, Yi Geng, Xiaoli Huang, Ping Ouyang, Defang Chen, Hongrui Guo, Huidan Deng, Weimin Lai, Zhicai Zuo
Summary: In this study, the researchers examined the pathological changes in the skin and muscle of yellow catfish infected with Vibrio mimicus. They found significant necrosis, inflammation, and tissue remodeling, as well as changes in collagen composition. Transcriptomic and label-free analyses revealed immune pathway responses and downregulated cell signaling pathways. Key regulatory genes, such as MMP-9 and MMP-13, were identified in the cytokine and tissue remodeling pathways. These findings provide new insights into the immune response to V. mimicus infection in yellow catfish and suggest potential therapeutic targets.
FRONTIERS IN IMMUNOLOGY
(2023)
Article
Physiology
Johannes Kovarik, Norihiko Morisawa, Johannes Wild, Adriana Marton, Kaoru Takase-Minegishi, Shintaro Minegishi, Steffen Daub, Jeff M. Sands, Janet D. Klein, James L. Bailey, Jean-Paul Kovalik, Manfred Rauh, Susanne Karbach, Karl F. Hilgers, Friedrich Luft, Akira Nishiyama, Daisuke Nakano, Kento Kitada, Jens Titze
Summary: Our study found that rats with 5/6 nephrectomy showed polyuria due to the inability of their kidneys to concentrate urine, but they were able to adapt physiologically by mobilizing nitrogen and energy from muscle, increasing norepinephrine and copeptin levels, and reducing skin blood flow to compensate for transepidermal water loss. This complex physiologic-metabolic adjustment across multiple organs allowed the rats to stabilize their body water content despite persisting renal water loss, although it led to hypertension and muscle catabolism.
Article
Chemistry, Multidisciplinary
Haiyan Feng, Yanfei Ma, Zhizhi Zhang, Song Yang, Zhengfeng Ma, Yunlei Zhang, Shuanhong Ma, Bo Yu, Meirong Cai, Xiaowei Pei, Feng Zhou
Summary: This study introduces a strategy to quickly reverse the adhesion properties of hydrogels by anchoring very thin adhesive coatings on their surface, providing hydrogels with more potential applications.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Rongnian Xu, Yunlei Zhang, Shuanhong Ma, Zhengfeng Ma, Bo Yu, Meirong Cai, Feng Zhou
Summary: A new method called ultraviolet-triggered surface catalytically initiated radical polymerization (UV-SCIRP) from a sticky initiation layer (SIL) has been proposed for growing hydrogel coatings on substrates/medical devices. This method allows for the modification of virtually any substrate's surface with controllable thickness and diverse compositions of hydrogel coatings. The hydrogel coatings exhibit good interface bonding with the substrates and enable easy changes in their wettability and lubrication performances. Importantly, this method facilitates the smooth growth of uniform hydrogel lubrication coatings on the surface of a range of medical devices with complex geometries.
ADVANCED MATERIALS
(2022)
Article
Engineering, Environmental
Jianbin Zhang, Xingwei Wang, Chaoyang Zhang, Hai yan Feng, Bo Yu, Wufang Yang, Xiaowei Pei, Feng Zhou
Summary: A new antifouling technology using interpenetrating polymer networks (IPNs) with autocrine property has been developed for marine protection, showing both quasi-static and dynamic antifouling properties, excellent mechanical performance, over 95% fouling resistance efficiency, good fouling release ability, and weak interfacial adhesion to biomass.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Guoqing Chen, Chaoyang Zhang, Qing Huang, Qiangliang Yu, Zhaozhao Yang, Chunyu Zhou, Xiaoyan Yan, Ruozheng Wang, Bo Yu, Meirong Cai
Summary: Two new water-based additives (P4-G, P8-G) with phosphate organic guanidine salt were synthesized and their superior tribological properties and anti-corrosion performance were investigated. P8-G exhibited excellent lubricity, anti-wear properties, and anti-corrosion properties, making it a promising lubricant additive for water-based hydraulic fluids.
Article
Engineering, Mechanical
Chaoyang Zhang, Zhiquan Yang, Qing Huang, Xingwei Wang, Wufang Yang, Chunyu Zhou, Bo Yu, Qiangliang Yu, Meirong Cai, Feng Zhou
Summary: A new type of lubricating material, BTA-P-4444-Lig, was synthesized by combining lignin with tetrabutylphosphorus and benzotriazole. It exhibits excellent friction reduction, wear resistance, thermal stability, and oxidation resistance. The mechanism analysis reveals that the active elements react with the metal substrate and the phenolic hydroxyl group in lignin affords good anti-oxidant activity.
Article
Chemistry, Physical
Ruozheng Wang, Chufeng Sun, Xiaoyan Yan, Tingting Guo, Wenjun Xiang, Zhaozhao Yang, Qiangliang Yu, Bo Yu, Meirong Cai, Feng Zhou
Summary: Four types of choline/fatty acid ionic liquids were synthesized and used as water-based lubricant additives in an ethylene glycol system. The tribological behaviors of the mixtures were investigated under the control of an applied electric field. The [Ch][SA] ionic liquid showed excellent tribological properties due to its strong adsorption and tribochemical reaction film formation on the metal surface.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Bo Yu, Zhengrong Sun, Yubo Liu, Yang Wu, Feng Zhou
Summary: A photo-thermal superhydrophobic polyurethane sponge (PSP-SPONGE) was developed, which can easily prevent ice accretion or de-ice on solid surfaces under faint sunlight irradiation. The PSP-SPONGE has excellent self-cleaning and self-healing properties, making it suitable for various environmental conditions and ensuring durable anti-icing and de-icing performances.
Article
Engineering, Chemical
Zhaozhao Yang, Yijing Liang, Qing Huang, Xingwei Wang, Chunyu Zhou, Ruozheng Wang, Xiaoyan Yan, Bo Yu, Qiangliang Yu, Meirong Cai, Feng Zhou
Summary: Four oil-soluble ionic liquids (ILs) with different structures were synthesized and their effects on the physicochemical properties of oil samples were investigated. The results showed that P/S improved the thermal stability of the oil samples, while N/S significantly improved the tribological performance at room temperature and under heavy loading.
LUBRICATION SCIENCE
(2023)
Article
Chemistry, Applied
Yubo Liu, Weiming Sun, Kai Feng, Yang Wu, Bo Yu, Shujuan Liu, Feng Zhou
Summary: Inspired by sebaceous glands, a self-lubricant (SL) coating with ultra-low ice adhesion and excellent deicing durability was designed. By selecting a suitable simulant of oily sebum, mixing lubricant with resin, and forming sebaceous glands-like structures in the coating matrix, the coating achieved storage and secretion of lubricants, ensuring its deicing durability.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Engineering, Mechanical
Xiaoyan Yan, Zhiquan Yang, Ruozheng Wang, Wenjun Xiang, Zhaozhao Yang, Chufeng Sun, Qiangliang Yu, Meirong Cai, Bo Yu
Summary: This study synthesized three sterically-hindered quaternary ammonium phosphate ionic liquids and investigated the effect of the alkyl chain structure of oil soluble ILs on their lubricating and anti-corrosion abilities. The research found that when lower steric hindrance was present, the amount of ILs adsorbed increased, resulting in the formation of more antiwear compounds and a hydrophobic layer that isolated the corrosive environment.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Polymer Science
Yingfeng Xu, Chunrong Tian, Luyao Bao, Kaijie Wei, Yanhua Liu, Bo Yu, Feng Zhou
Summary: In this study, the hygroscopicity of polyurethane foams with different compositions was investigated. The experimental results showed that the moisture absorption of the foams followed Fick's law, and the mechanical properties of the foams were slightly reduced after moisture absorption. PU-4 was identified as the optimal foam system based on its dimensional and mechanical property changes. Additionally, it was found that moisture absorption increased significantly with higher temperature and humidity. Two-dimensional infrared and NMR techniques revealed the moisture absorption mechanism at the molecular scale, which was validated by molecular dynamics simulations.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Applied
Ruozheng Wang, Chen Zhao, Zhenjun Peng, Xiaoyan Yan, Yuchen Sun, Qiangliang Yu, Bo Yu, Meirong Cai, Feng Zhou
Summary: A multifunctional organic/inorganic hybrid coating was prepared on AZ31 magnesium alloy by microarc oxidation and vapor deposition of Polyp-xylene. The coating exhibited excellent corrosion resistance and lubricating properties, offering promising application prospects for surface protection of magnesium alloys.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Nanoscience & Nanotechnology
Zhengfeng Ma, Yizhe Liu, Kai Feng, Jianteng Wei, Jianxi Liu, Yang Wu, Xiaowei Pei, Bo Yu, Meirong Cai, Feng Zhou
Summary: In this study, a brush-like amphiphilic copolymer was synthesized to construct an environment-adaptive multifunctional coating. The coating exhibited various functions depending on the surrounding environment, such as antifogging, underwater oleophobicity, self-cleaning, antibacterial properties, triboelectric resistance, and super lubrication in water-rich surroundings, and low friction coefficient and antioil properties in dry air surroundings. This research presents a strategy for the construction of environment-adaptive coatings with important application prospects in the field of optical lenses.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Mouji Li, Yangyang Xiang, Li Sun, Yunlei Zhang, Wufang Yang, Wenshen Lu, Xiaoduo Zhao, Luyao Bao, Meirong Cai, Bo Yu, Feng Zhou
Summary: A multi-phase composite ultra-low friction system was constructed based on special wetting interfaces, achieving an ultra-low friction phenomenon and avoiding wear by using environmentally friendly lubrication components.
Article
Materials Science, Multidisciplinary
Rongnian Xu, Mutian Hua, Shuwang Wu, Shuanhong Ma, Yunlei Zhang, Liqiang Zhang, Bo Yu, Meirong Cai, Ximin He, Feng Zhou
Summary: This study presents a new method (UV-SCIRP) for the growth of hydrogel layers at room temperature, facilitated by surface catalytically initiated radical polymerization. This method allows the fabrication of multi-layered hydrogel structures.
