Article
Nanoscience & Nanotechnology
Kezi Cheng, Alex Chortos, Jennifer A. Lewis, David R. Clarke
Summary: Covalent adaptive networks combine the advantages of cross-linked elastomers and dynamic bonding in a single system. A simple one-pot method to prepare thiol-ene elastomers that exhibit reversible photoinduced switching from an elastomeric gel to fluid state is demonstrated. This behavior can be generalized to different composition and chemistries and allows for self-healing, remolding, and reversible adhesion.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Environmental
Hui Li, Songsong Tang, Wei Chen, Xixue Yang, Shuang Dong, Tieling Xing, Yan Zhao, Guoqiang Chen
Summary: A new method for preparing mechanically robust superhydrophobic surfaces using a fully waterborne coating system based on UV induced thiol-ene click reaction is proposed in this study. Various substrates exhibit water contact angle greater than 160 degrees after being coated with PTFE nanoparticle-containing WPM. Additionally, nanoparticles provide additional functions.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Yu-Ching Hsu, Yi-Hong You, Ai-Nhan Au-Duong, Yan-Shin Huang, Yu-Cheng Chiu, Liang-Yih Chen
Summary: This article presents a simplified approach for producing elastic, self-healing, and light-conversion material using CsPbBr3 quantum dots and a designed copolymer. The composite film exhibits high luminescence and elasticity, and achieves 90% self-healing efficiency at room temperature.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Taisong Fang, Songbai Liu
Summary: A simplified layer-by-layer encapsulation technique has been developed to protect probiotics from adverse conditions in the gastrointestinal tract. The coated probiotics show improved viability and colonization in the intestinal tract, and oral therapy with the coated probiotics alleviates colitis symptoms in mice. This study has significant implications for probiotics-mediated biomedical and nutraceutical applications.
Article
Polymer Science
Ivan Djordjevic, Gautama Wicaksono, Juhi Singh, Manisha Singh, Elizabeth G. Ellis, Maher A. Alraddadi, Andrew P. Dove, Terry W. J. Steele
Summary: In this study, thiol/ene-based resorbable elastomers were combined with a carbene bioadhesive to create a dual crosslinked, three-component hybrid network. The resulting hybrid bioadhesive displayed both tunable dynamic moduli and shear adhesion strength, making it a promising candidate for various biomedical applications.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Osman Konuray, Sasan Moradi, Adria Roig, Xavier Fernandez-Francos, Xavier Ramis
Summary: In order for covalent adaptable networks to be fully recyclable, they need to overcome all topological restrictions and flow. A statistically based method showed that the relaxation of stress in disulfide-containing thiol-ene polymers is closely related to the fraction of permanent cross-links. Even with low disulfide content, the materials can be recycled at moderate temperatures without losing tensile properties by triggering transesterification reactions through increased reprocessing temperature, due to the presence of ester bonds.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Aviv Schwarz, Hadas Alon-Yehezkel, Adi Levi, Rajesh Kumar Yadav, Koushik Majhi, Yael Tzuriel, Lauren Hoang, Connor S. Bailey, Thomas Brumme, Andrew J. Mannix, Hagai Cohen, Eilam Yalon, Thomas Heine, Eric Pop, Ori Cheshnovsky, Doron Naveh
Summary: Recent research on 2D transition metal dichalcogenides (TMDCs) has led to important discoveries in fundamental phenomena and device applications. In this study, a two-step treatment with organic molecules was used to heal native defects in CVD-grown WSe2 and WS2. The adsorption of thiols was found to only partially passivate defects, but molecular trimming and release of atomic sulfur significantly improved semiconductor quality. Time-dependent XPS and first-principles calculations were used to characterize defects and their healing.
NPJ 2D MATERIALS AND APPLICATIONS
(2023)
Article
Polymer Science
Shafer M. Soars, Nicholas J. Bongiardina, Benjamin D. Fairbanks, Maciej Podgorski, Christopher N. Bowman
Summary: A new strategy combining photomediated thiol-ene and disulfide-ene-based polymerization reactions is reported for the design and synthesis of high sulfur-containing materials for potential use in covalent adaptable networks and optical materials. By taking advantage of the relative reaction rates and semiorthogonally performing these reactions, controlled architecture polymer networks were produced. The study demonstrates the differential reaction rates between thiol-ene and disulfide-ene reactions, enabling spatial and temporal manipulation of material properties through dual-cure networks and photopatterning.
Article
Chemistry, Applied
Yinlei Lin, Xinyan Song, Chenjing Zhu, Jianhui Huang, Xiaoxu Bai, Haichen Zhang, Kun Wang, Huawen Hu, Guangji Li
Summary: This study reports the self-healing capability of particle-encapsulated isocyanate activated in a moisture environment. A novel isocyanate-oxazolidine compound loaded-spherical microcapsule is prepared, which improves the thermal stability and allows for autonomous self-healing in a moisture environment. The study provides evidence to elucidate the self-healing pathway on the molecular level and opens up a route to develop isocyanate-encapsulated self-healing materials for practical applications.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Chemistry, Multidisciplinary
Hongbing Zhang, Sijie Wang, Yujie Wang, Shuhan Dong, Wen Chen, De Li, Feng Yu, Yong Chen
Summary: A crosslinked cellulose-based gel polymer electrolyte (GPE) with enhanced mechanical strength and rigid structure was synthesized using a facile and effective thiol-ene click chemistry method. This GPE showed significant improvement in capacity retention and cycling performance in comparison to non-crosslinked GPE.
CHINESE CHEMICAL LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Juan Wang, Fengcang Ma, Lin Song, Ping Liu, Wei Li, Ke Zhang, Xiaohong Chen
Summary: Benzotriazole (BTA) inhibitor was coated in mesoporous silica nanoparticles (MSNs) using tannic acid complex (TAC) deposition, forming a pH control release valve for sensitive feedback and control of BTA release. By adding MSNs-BTA@TAC to an organic-inorganic composite coating, a self-healing coating with pH feedback sensitivity and corrosion compensation function was prepared. The results showed significant self-healing effect of the coating after soaking in simulated body fluids, with a increase in low-frequency impedance modulus.
Article
Materials Science, Multidisciplinary
Zhongqun Zhou, Yanning Zeng, Caili Yu, Quanyang Li, Faai Zhang
Summary: The study presents a design concept for a self-healing, highly stretchable, and robust poly(urethane-urea) elastomer prepared via a thiol-ene click reaction. The elastomer possesses versatile properties and high self-healing efficiency, making it potentially useful for fabricating self-healing stretchable conductive devices.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Polymer Science
Yunfeng Hu, Shafer M. Soars, Bruce E. Kirkpatrick, Maciej Podgorski, Nicholas Bongiardina, Benjamin D. Fairbanks, Kristi S. Anseth, Christopher N. Bowman
Summary: This paper explores the utility of sequential thiol-ene and disulfide-ene photopolymerizations in materials applications such as shape fixation, photolithography, and holographic recording. By taking advantage of the significant difference in reaction rates between these two reactions, two-stage photopolymers with high specificity are formed. The dynamic behavior and shape fixation capabilities of these materials are demonstrated. The mechanical properties under stress are studied using techniques such as photolithography and polarized light microscopy. Additionally, the integrated network in the two-stage system is utilized for holographic grating recording with high refractive index modulation (Delta n) and low haze.
Article
Chemistry, Applied
Lei Ding, Luying Chen, Lecheng Hu, Xueling Feng, Zhiping Mao, Hong Xu, Bijia Wang, Xiaofeng Sui
Summary: The study integrated acidochromic regenerated cellulose into polyvinyl alcohol/borax matrix to prepare a smart hydrogel with self-healing, color-tunable, and sol-gel conversion properties. The mechanical properties of the hydrogel were significantly improved after incorporating ARC, showing excellent self-healing and color tuning abilities.
CARBOHYDRATE POLYMERS
(2021)
Article
Chemistry, Physical
Jiaojiao Zhang, Jinfei Wei, Bucheng Li, Xia Zhao, Junping Zhang
Summary: By designing a two-layer self-healing superamphiphobic coating based on shape memory polymers and attapulgite, long-term corrosion protection for magnesium alloy has been achieved with excellent self-healing and anti-corrosion performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Materials Science, Coatings & Films
Yanchun Xie, Xiaodong Wang, Shenshen Cui, Jiali Hu, Yongcun Wei, Yi Lian, Anwu Xuan, Bin Yu, Erlin Zhang
Summary: In this study, Ti-xFe (x = 3,5,9 wt%) alloys were surface modified by micro-arc oxidation (MAO) to improve their antimicrobial properties and biocompatibility. The results showed that increasing the oxidation voltage greatly enhanced the roughness and hydrophilicity of Ti-xFe-MAO alloys. The Ti-xFe alloys micro-arc oxidized at 250 V and 300 V exhibited improved corrosion resistance and excellent antimicrobial and cytocompatibility properties, making them suitable for orthopedic implant materials.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuting Hao, Zuoyan Ye, Lili Wang, Minheng Ye, Hui Dong, Chao Wang, Yunchen Du
Summary: This study focuses on the modification of PEO coatings on Ta-12W alloy using NH4F additive. The results show that ultra-low porosity coatings can be prepared by optimizing the NH4F content. The formation process of specific structures on the coating surface is discussed, and the effects of NH4F concentration and treatment duration on coating characteristics are investigated.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuanzhuo Liu, Linjiang Chai, Tao Yang, Chaodan Hu, Chuanmei Wang, Guoqiang Xi
Summary: By employing a pulsed laser, laser cladding was performed on IN718 alloy pre-coated with CrCoNi-TiC/SiC powders and three defect-free coatings were successfully prepared. The addition of TiC and SiC powders generated fine carbides dispersed in the coatings and led to changes in grain and substructure morphologies, resulting in increased hardness and wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
M. Ghaemi, A. Lopez-Cazalilla, K. Sarakinos, G. J. Rosaz, C. P. A. Carlos, S. Leith, S. Calatroni, M. Himmerlich, F. Djurabekova
Summary: The use of high-power impulse magnetron sputtering can result in dense and uniform niobium films on all surfaces of superconducting rf cavities, as simulated and investigated in this study.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Jiaheng Du, Xinli Fan, Dongqin Xiao, Wuxiang Wang, Yiran Yin, Zhong Li, Kui He, Yanfei Tan, Jiyuan Yan, Gangli Liu, Ke Duan
Summary: This study investigated the electrophoretic deposition (EPD) of magnesium oxide (MgO) coatings on micro-arc oxidized titanium (MAO-Ti) and evaluated their in vitro antibacterial properties and biocompatibility. The results showed that MgO coatings significantly reduced bacterial numbers and biofilm formation, while also demonstrating good cytocompatibility and induction of osteoblast mineralization.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Samiksha Moharana, Yuichi Otsuka, R. Gnanamoorthy
Summary: The addition of titania to HAp coatings improves their wear resistance and reduces damage to titanium implants caused by debris generation. This study evaluates the fretting wear resistance of titania-added HAp suspension plasma spray coating and finds that it exhibits reduced friction coefficient and increased wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Li-Ping Wu
Summary: The functional hazenite coating deposited on AZ31 Mg alloy showed improved roughness and hydrophilicity, enhanced biocompatibility, reduced degradation rate, and decreased susceptibility to stress corrosion cracking.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Ning Tian, Delei Xu, Jinfei Wei, Bucheng Li, Junping Zhang
Summary: This study reports the preparation of a superhydrophobic and anti-bacterial fabric for face masks. The fabric exhibits high superhydrophobicity and excellent moisture resistance, enabling functionality effectiveness in cold weather conditions. The fabric also demonstrates remarkable anti-bacterial activity against E. coli, attributed to the synergistic effect of superhydrophobicity and embedded ZnO nanoparticles. This superhydrophobic anti-bacterial fabric holds great potential for various practical applications in personal protective equipment, healthcare, and disease prevention.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Katharina Beck, Anke S. Ulrich, Andreas K. Czerny, Emma M. H. White, Martin Heilmaier, Mathias C. Galetz
Summary: Refractory metal based alloys have great potential as structural materials for high-temperature applications due to their high melting points. However, they are prone to catastrophic oxidation at around 700 degrees C. This study investigated the effect of aluminium diffusion coatings on the oxidation resistance of pure molybdenum, niobium, tantalum, and tungsten. The results showed that the aluminization improved the oxidation behavior and decreased the oxide growth rate for molybdenum and tantalum.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Wenwen Shuai, Haijun Dou, Zhichen Guan, Wei Qian, Zhibao Li, Yinqun Hua, Jie Cai
Summary: This study synthesized (Y1-xLax)3Al5O12 (x = 0, 0.1, 0.2, 0.3) materials by doping lanthanum ions, and found that the doped materials exhibited improved mechanical properties and thermal expansion coefficient, as well as enhanced resistance to CMAS corrosion. These materials have potential applications.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Xianglei Liu, Jiahui Ding, Wanbo Hou, Xinhao Shi, Tao Feng, Xiangyuan Meng, Shifeng Wen, Mingde Tong, Zhufeng Yue
Summary: A composite coating was developed to improve the adhesion, wear resistance, and corrosion resistance, which exhibited significant enhancements in these properties.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hongxuan Xing, Jidong Li, Xianwei Hu, Liang Tian, Renyun Zhang, Yiyong Wang
Summary: By depositing a Cu/Co-Mo corrosion-resistant plating layer on the surface of 6061 Al alloy, the bonding strength between the alloy and the plating layer can be improved and the corrosion resistance can be enhanced. The composite coating forms an obvious three-layer structure with Co-Mo coating exhibiting amorphous characteristics and Co3Mo phase composition. The composite coating improves the corrosion resistance and hardness of the substrate, effectively protecting the 6061 Al alloy.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Fan Yang, Debin Wang, Tianrun Li, Baijun Yang, Suode Zhang, Jianqiang Wang
Summary: The impact-corrosion behavior of monolayer and hierarchical Fe-based amorphous coatings fabricated by HVAF was investigated in 3.5 wt% NaCl solution. The monolayer coating exhibits corrosion failure with increased impact energy, while the hierarchical coating shows improved resistance. However, at high impact energies, both coatings experience corrosion degradation.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Shoaib Ahmad, Muddasir Nawaz, Solaiman Mohammad, R. A. Shakoor, Ramazan Kahraman, Talal Mohammed Al Tahtamouni
Summary: This research presents a novel self-healing anti-corrosion composite coating that demonstrates higher inhibition efficiency and self-healing effect, providing protection for metallic structures against corrosive environments.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hui-Wen Peng, Chun-Hway Hsueh
Summary: A series of (CoCrNi)100-x-ySixNdy medium entropy alloy films with manipulated metalloid element, Si, and rare earth element, Nd, were synthesized using magnetron three-target co-sputtering. The films showed different structures and mechanical properties with varying Si and Nd contents. The optimized mechanical properties were observed in the film with Si0.61Nd5.14, attributed to precipitation strengthening and grain refinement.
SURFACE & COATINGS TECHNOLOGY
(2024)