Article
Engineering, Biomedical
Jueying Chen, Jiahui He, Yutong Yang, Lipeng Qiao, Juan Hu, Jie Zhang, Baolin Guo
Summary: The development of compressible, stretchable and self-healing hydrogel dressings with good adhesive, antibacterial and angiogenesis properties is needed to promote the regeneration of diabetic wounds in clinical applications.
ACTA BIOMATERIALIA
(2022)
Article
Materials Science, Composites
Wenqi Cui, Ting Hu, Shuguang Yang, Baoquan Huang, Qingrong Qian, Qinghua Chen, Fubin Luo
Summary: In this study, a thermally conductive epoxy/graphite composite with excellent self-healing and reprocessability is prepared using covalent adaptable networks. The influence of graphite on the rheology, reprocessing, and self-healing properties of epoxy is studied. The highly thermally conductive bulk composites are constructed via multilayered stacking up and self-healing based on the film composites prepared using a rolling method. The high thermal conductivity is achieved by the highly aligned graphite induced by the rolling process. This work provides a new strategy for preparing recyclable and highly thermally conductive epoxy.
POLYMER COMPOSITES
(2023)
Article
Chemistry, Multidisciplinary
Zhicheng Xu, Litong Chen, Liangliang Lu, Ruichun Du, Wencan Ma, Yifeng Cai, Xiaoming An, Haomin Wu, Qiong Luo, Qiang Xu, Qiuhong Zhang, Xudong Jia
Summary: Dopamine was introduced into a hydrogen bonding-based elastomer to create a material with both mechanical strength and adhesion strength. This elastomer showed high stress and fracture strain, along with high adhesive and underwater adhesive strength, making it suitable for a stretchable bio-interfacial electrode with self-healing properties.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Bin Kong, Rui Liu, Yi Cheng, Xiaodong Cai, Junying Liu, Dagan Zhang, Hui Tan, Yuanjin Zhao
Summary: Developing a biocompatible and multifunctional adhesive hydrogel for wound healing is a highly anticipated clinical application. In this paper, a novel natural biopolymer-derived hydrogel based on aldehyde-modified oxidized guar gum (OGG) and carboxymethyl chitosan (CMCS) is presented. The hydrogel has excellent self-healing ability and shear thinning behavior, and can be injected conveniently through a needle. The physiochemical properties of the hydrogel can be controlled by regulating the concentrations of OGG. In addition, the hydrogel can adhere tightly to tissues and promote wound repair by encapsulating vascular endothelial growth factor (VEGF).
Article
Chemistry, Physical
Bin Kong, Rui Liu, Yi Cheng, Xiaodong Cai, Junying Liu, Dagan Zhang, Hui Tan, Yuanjin Zhao
Summary: This paper presents a biocompatible and multifunctional adhesive hydrogel based on oxidized guar gum and carboxymethyl chitosan for promoting wound healing. The hydrogel has self-healing ability and shear thinning behavior, allowing it to be easily injected. Its physiochemical properties can be controlled by regulating the concentrations of the hydrogel components. Additionally, the hydrogel exhibits strong adhesion to tissues at physiological temperature.
Article
Nanoscience & Nanotechnology
Lanlan Wang, Ziqiang Zhao, Jinhua Dong, Dawei Li, Wenhao Dong, Haoxuan Li, Yuqi Zhou, Qingsheng Liu, Bingyao Deng
Summary: Multifunctional hydrogel wound dressings with high adhesive, self-healing, antioxidant, and antibacterial activity were designed and fabricated for treating skin injuries in clinical care.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Qing Li, Shiqi Zhang, Ruijie Du, Yunyi Yang, Yang Liu, Zhili Wan, Xiaoquan Yang
Summary: A novel GA-based hybrid hydrogel was developed for wound healing, which exhibited excellent stability, mechanical performance, and multifunctional properties. The hydrogel promoted the formation of granulation tissue, facilitated collagen deposition, reduced bacterial infection, and downregulated inflammatory response. This study highlights the design of new and multifunctional bioactive herb hydrogels for biomedical applications as promising wound-healing dressings.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Biomedical
Xin Zhou, Ashna Rajeev, Arunprabaharan Subramanian, Yang Li, Nicolo Rossetti, Giovanniantonio Natale, Gregory A. A. Lodygensky, Fabio Cicoira
Summary: In this study, self-healing, stretchable, highly adhesive and conductive hydrogels were developed for bioelectronics and wearable electronics applications. These hydrogels exhibited high adhesion, good stretchability, moderate conductivity, and remarkable self-healing properties. They were successfully used to fabricate high-quality electrode for recording electrocardiography and electromyography signals.
ACTA BIOMATERIALIA
(2022)
Article
Materials Science, Composites
Dineshkumar Mani, Minh Canh Vu, Sebastian Anand, Jun-Beom Kim, Tae-Hyeong Jeong, Il-Ho Kim, Bong Kuk Seo, Md Akhtarul Islam, Sung-Ryong Kim
Summary: This study proposes a stretching-induced filler alignment method to improve the thermal conductivity and electromagnetic interference shielding effectiveness of self-healing polyurethane composites with liquid metal. The alignment of the filler improves the transmission of electrons and phonons, allowing for multiple reflections and absorption of electromagnetic waves, thereby enhancing the performance of the composites.
COMPOSITES COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Xinran Wei, Daijun Chen, Xiaoli Zhao, Jinni Luo, Huanxia Wang, Pengxiang Jia
Summary: This study developed a reusable, underwater adhesive, conductive, and self-healing hydrogel with excellent adhesion properties and a wide range of applications.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Minho Seong, Stalin Kondaveeti, Geonjun Choi, Somi Kim, Jaeil Kim, Minsu Kang, Hoon Eui Jeong
Summary: Researchers have designed a multifunctional ionotronic hydrogel that can be printed and has strong processability and high conductivity. The hydrogel can adhere to different surfaces, has self-healing properties, and exhibits ionic conductivity and strain sensing. It can be used as a wearable strain sensor for healthcare devices. This study provides a new avenue for the design of multifunctional ionotronic hydrogels.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Biomedical
Luyao Feng, Liqun Wang, Yao Ma, Wanglin Duan, Sergio Martin-Saldana, Ye Zhu, Xianpeng Zhang, Bin Zhu, Chaowei Li, Shibo Hu, Mingjie Bao, Ting Wang, Yuan Zhu, Fei Yang, Yazhong Bu
Summary: Intrauterine adhesion (IUA) is a fibrosis condition in the uterus that is the second most common cause of female infertility, adversely affecting women's physical and mental well-being. Current treatment strategies for IUA fail to provide satisfactory outcomes, posing a significant challenge for reproductive science. This study presents a series of self-healing adhesive hydrogels with antioxidant properties (P10G15, P10G20, and P10G25) that exhibit good self-healing, adaptability, injectability, and tissue adhesiveness. In vitro experiments using P10G20 showed effective scavenging of oxidative stress markers and promising biocompatibility. Further, P10G20 demonstrated a reduction in oxidative stress and prevention of IUA with improved tissue regeneration in an animal model, highlighting its potential as a clinical treatment option.
BIOACTIVE MATERIALS
(2023)
Article
Polymer Science
Chuchu Cheng, Kang Ding, Wenhao Du, Dong Wang, Xi Zhang
Summary: This study reports an ionic skin fabricated using an ionic liquid, acrylic acid, and Fe3+, which exhibits superior tensile properties, self-healing efficiency, high electrical sensitivity, and a wide strain monitoring range. It has the potential to be used as wearable sensors in various applications and can be programmed to provide information.
Article
Chemistry, Multidisciplinary
Mi Fu, Zhenxuan Sun, Xiaobo Liu, Zhenkai Huang, Guifang Luan, Yutong Chen, Jianping Peng, Kan Yue
Summary: In this study, high-performance ionic hydrogels with excellent mechanical and thermoelectric properties were designed and characterized for the application of converting low-grade waste heat into electricity for wearable electronic devices.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Danfeng Pei, Shanyu Yu, Ping Liu, Yongpeng Wu, Xiaofang Zhang, Yijun Chen, Mingjie Li, Chaoxu Li
Summary: In this study, a conductive composite elastomer of liquid metals with reversible adhesion and self-healing properties was successfully developed. The composite material exhibits high conductivity and stretchability, making it suitable for applications in soft robotics, electronic skins, and wearable devices. It also offers the potential for building damage-endurable soft electronics and human-machine interfaces.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Polymer Science
Jordana Goncalves, Patricia Lima, Beate Krause, Petra Poetschke, Ugo Lafont, Jose R. Gomes, Cristiano S. Abreu, Maria C. Paiva, Jose A. Covas
Article
Engineering, Aerospace
Helena Rocha, Ugo Lafont, Christopher Semprimoschnig
Article
Multidisciplinary Sciences
Maruti Hegde, Lin Yang, Francesco Vita, Ryan J. Fox, Renee van de Watering, Ben Norder, Ugo Lafont, Oriano Francescangeli, Louis A. Madsen, Stephen J. Picken, Edward T. Samulski, Theo J. Dingemans
NATURE COMMUNICATIONS
(2020)
Review
Polymer Science
Ali Reza Zanjanijam, Ian Major, John G. Lyons, Ugo Lafont, Declan M. Devine
Article
Polymer Science
Helena Rocha, Ugo Lafont, Joao P. Nunes
Summary: This study compares the residual strains produced by low-velocity impact events measured by FBG sensors embedded in different locations of carbon fibre reinforced polymer composites to select an appropriate embedding location for BVID detection. The results show that FBG sensors not only measure residual strain after damage but also detect strain peaks at the time of impact, crucial for identifying the nature and presence of BVID in real-life applications.
Article
Materials Science, Multidisciplinary
Roxana Dinu, Ugo Lafont, Olivier Damiano, Alice Mija
Summary: This study proposes a chemical combination of aromatic bio-based epoxy monomers with potential bio-based anhydrides to produce thermosetting materials with competitive performances. The resulting materials have high bio-based carbon content, high glass transition temperatures, high storage moduli, high thermal stability, and low water absorption values, making them suitable for applications in space, aerospace, or naval industry.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Polymer Science
Roxana Dinu, Ugo Lafont, Olivier Damiano, Alice Mija
Summary: In this study, high performance thermosets free of bisphenol A were successfully synthesized by copolymerization of an aromatic tris epoxide with anhydrides. The prepared thermosets exhibited excellent hardness, high thermal stability, and good flame retardancy properties.
Article
Materials Science, Multidisciplinary
Roxana Dinu, Ugo Lafont, Olivier Damiano, Francois Orange, Alice Mija
Summary: Due to concerns about global environmental impact and CO2 emission, sustainable composite materials with advanced performance are required. This study developed environmentally friendly carbon fiber reinforced composites (CFRCs) using a biobased epoxy resin derived from natural and renewable compounds. The CFRCs showed high performance with a glass transition temperature Tg> 350°C, a storage modulus of approximately 42 GPa, an interlaminar shear strength of approximately 63 MPa, and a compressive strength of approximately 400 MPa. Additionally, the CFRCs demonstrated chemical recyclability, reprocessability, and excellent intrinsic flame resistance.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Engineering, Aerospace
Laura Pernigoni, Ugo Lafont, Antonio M. Grande
Summary: One of the challenges in space exploration is to protect astronauts from the dangers of the space environment. Space suits are not currently able to withstand damage from micrometeoroids and orbital debris, which can lead to catastrophic consequences. The integration of self-healing materials into spacesuits has become a topic of interest, as it could improve safety and operational life. This study focuses on analyzing the healing performance of self-healing polymers in spacesuits before and after exposure to simulated space radiation, and aims to bridge the gap between standard characterization and the effects of space radiation on these materials.
Article
Chemistry, Physical
Gabin Charpentier, Ugo Lafont, Sofia Teixeira de Freitas
Summary: This study investigates the performance changes of two commonly used adhesives in spacecraft assembly under environmental aging conditions and evaluates their adhesion to CFRP and aluminum adherents.
Article
Engineering, Aerospace
Laura Pernigoni, Ugo Lafont, Antonio Mattia Grande
Summary: In recent years, there has been increasing interest in introducing self-healing materials into space structures. The ability to autonomously repair damage caused by micrometeoroids and orbital debris would enhance safety, increase spacecraft longevity and reduce replacement costs. However, the interaction between these materials and the space environment, particularly space radiation, needs further analysis and understanding. This study investigates the shielding ability of self-healing materials for human protection in crewed missions.
CEAS SPACE JOURNAL
(2023)
Article
Engineering, Aerospace
Marshall Quinn, Ugo Lafont, Johan Versteegh, Jian Guo
Summary: The research demonstrated that the FFF process can be used to fabricate dimensionally accurate, high-quality polycarbonate components with increased strength and ductility in a vacuum environment. This provides a proof of concept for developing manufacturing technologies in space, potentially allowing for more efficient production of structures using raw materials brought from Earth.
CEAS SPACE JOURNAL
(2021)
Article
Engineering, Aerospace
Laura Pernigoni, Ugo Lafont, Antonio Mattia Grande
Summary: Self-healing materials have great potential for space applications, increasing the reliability and safety of spacecraft structures, extending operational life, and enabling the implementation of more space mission scenarios.
CEAS SPACE JOURNAL
(2021)
Article
Engineering, Aerospace
Valentinas Snitka, Danute Batiuskaite, Ingrida Bruzaite, Ugo Lafont, Yuriy Butenko, Christopher Semprimoschnig
Summary: The use of surface-enhanced Raman scattering (SERS) technology, combined with nanoplasmonic porous silicon membrane and micropump, enables high sensitivity and selectivity detection of gas trace in the environment, achieving nanomolar sensitivity for pollutants molecules such as VOCs.
CEAS SPACE JOURNAL
(2021)
Review
Engineering, Manufacturing
A. Mitchell, U. Lafont, M. Holynska, C. Semprimoschnig
ADDITIVE MANUFACTURING
(2018)
