Article
Biochemistry & Molecular Biology
Yueyang Du, Yongen Lin, Kaikai Zhang, Dylan O'Neill Rothenberg, Huan Zhang, Hui Zhou, Hongfeng Su, Lingyun Zhang
Summary: This study elucidates the molecular mechanisms underlying the differential metabolism of albino, green, and purple pericarp coloration in tea leaves. Biochemical profiling and transcriptome sequencing were performed on three different types of tea pericarps. The findings provide a better understanding of the molecular mechanisms and theoretical basis for utilizing functional components of tea pericarp.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Materials Science, Ceramics
Zhenqian Zhang, Fei He, Changxu Huang, Zekai Song, Jinxiao Yang, Xudong Wang
Summary: This study focuses on the preparation of a black micro-arc oxidation ceramic coating on the surface of magnesium alloy and the mechanism of F- and Fe3+. The results show that the presence of F- and Fe3+ improves the corrosion resistance and thermal control performance of the coating.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Xinyue Teng, Maowen Song, Yongze Ren, Peicheng Lin, Yanzeng Zhang, Ting Xu
Summary: We experimentally demonstrate a semi-transparent optical coating that can produce the same color in transmission and reflection based on Fano resonance. The efficiency about 40% is achieved when the metallic spacer is extremely thin. By varying the thickness of the metal and the refractive index of the dielectric cap, a broad palette of colors and chromatic information display are presented. Our semi-transparent optical coatings exhibit viewing angle tolerance up to 40 degrees, which may lead to novel display and optical anti-counterfeiting techniques.
OPTICAL MATERIALS EXPRESS
(2023)
Review
Materials Science, Multidisciplinary
Navid Attarzadeh, Chintalapalle V. Ramana
Summary: Recent research has focused on designing ceramic coatings for zirconium-based substrates with excellent surface properties for modern technologies. The Plasma Electrolytic Oxidation (PEO) coating is an environmentally friendly wet coating method that can be tailored by changing parameters, electrolyte composition, and substrate alloying elements to meet various industry demands. The review emphasizes understanding PEO growth mechanisms and the impact of process parameters on oxide layer formation and microstructural properties for applications in chemical, electronics, and energy technologies.
Article
Chemistry, Physical
Lei Cai, Xiang Song, Cheng-Bao Liu, Lan-Yue Cui, Shuo-Qi Li, Fen Zhang, M. Bobby Kannan, Dong-Chu Chen, Rong-Chang Zeng
Summary: This work presents the design and preparation of a novel organic-inorganic hybrid coating for corrosion protection of magnesium alloys. By incorporating polyvinyl alcohol (PVA) and neodymium nitrate (Nd(NO3)3) into the micro-arc oxidation (MAO) coating, the properties of the coating are improved and self-healing function is achieved.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Sergey Perevoznikov, Ludmila Tsybulskaya, Vladislav Shendyukov, Nico Scharnagl
Summary: A new method of preparing light absorbing coatings based on electrodeposited nickel-phosphorus coatings has been proposed. By modifying the electrolyte, an ultrablack surface with a low reflectance coefficient can be achieved. The chemical composition and formation mechanism of both surfaces have been studied. It has been found that etching in nitric acid leads to oxidation and the formation of a needle-like microstructure. The light absorbance ability of the coatings is caused by the distribution of fine nickel-phosphorus particles in a dielectric matrix and the specific microstructure of their surfaces.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Physical
Sergey Perevoznikov, Ludmila Tsybulskaya, Vladislav Shendyukov, Nico Scharnagl
Summary: The study introduces a new method for preparing light absorbing coatings based on nickel-phosphorus coatings, achieving ultra-black surfaces through saccharin modification. Nitric acid etching leads to oxidation and microstructure formation, influencing the light absorption ability of the coatings.
SURFACES AND INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Shang-Kun Wu, Wei Yang, Wei Gao, Yu-Hong Yao, Yong Zhang, Jian Chen
Summary: The study investigated the fabrication and performance of MAO + Cu composite coatings on 6061 aluminum alloy substrates. The results showed that the composite coatings exhibited good adhesion strength and friction properties.
Article
Materials Science, Coatings & Films
Fatma Sezgi Eraslan, Ridvan Gecu
Summary: This study optimized the chemical composition of wear- and corrosion-resistant Al2O3-TiO2 composite coatings. The results showed that increasing TiO2 content increased coating thickness, and 2-layered structures had lower wear rates at low TiO2 content while 4-layered structures had higher wear resistance at high TiO2 content.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Environmental Sciences
Lalita Zakharikhina, Peter Rudev, Anna Paltseva
Summary: This study investigates the pollution level of a coastal marine zone caused by the Olympic construction by analyzing the chemical composition of mussels' soft tissues. The findings show anthropogenic pollution in the coastal zone, most significant in the 50-meter zone along the coast. However, the ecological situation stabilizes by 2019. This research is crucial for comprehensive ecological monitoring in similar coastal-marine zones.
MARINE POLLUTION BULLETIN
(2022)
Article
Chemistry, Applied
Jinghua Tan, Fengyun Xie, Jie Huang, Xueyuan Liu, Huipeng Li, Jiazhen Yuan, Chunbo Zhao, Yiwu Liu
Summary: A new black polyimide (BPI) with excellent comprehensive performance was synthesized by customizing a novel diamine monomer (TPCPOHPDA) and polymerizing it with 4,4'-(hexafluoroisopropylidene) diphthalic anhydride (6FDA). The resulting TPCPOHPPI exhibited a broad UV-visible light absorption range, excellent thermal, electrical and mechanical performances, and high solubility. A TPCPOHPPI-based two-layer black flexible copper clad laminate (2L-FCCL) showed good dip soldering resistance and peeling strength.
Article
Food Science & Technology
Ya-Lin Mao, Jie-Qiong Wang, Gen-Sheng Chen, Daniel Granato, Liang Zhang, Yan-Qing Fu, Ying Gao, Jun-Feng Yin, Long-Xin Luo, Yong-Quan Xu
Summary: The study investigated the effects of black tea infusion on the color of milky tea, revealing that redder black tea infusion produces milky tea with more redness and a pleasant pink color when the a* value is between 6.0-7.0. Correlation analysis showed that specific compounds like theaflavins and (-)-epigallocatechin-3-gallate significantly correlate with the redness of milky tea.
FOOD RESEARCH INTERNATIONAL
(2021)
Article
Chemistry, Applied
Jinhe Dou, Jing Wang, Yupeng Lu, Chuanzhong Chen, Huijun Yu, Robin Lok-Wang Ma
Summary: The generation of MAO/CS composite coatings on Mg-1.75Zn-0.56Ca alloy surface significantly improves the corrosion resistance and biocompatibility of the alloy, with smooth and defect-free characteristics of the coatings.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Materials Science, Multidisciplinary
Lyudmila Viktorovna Dobysheva, Feodor Feodorovich Chausov, Natalya Valentinovna Lomova
Summary: FeNTP is a linear organic-inorganic coordination polymer, and Cd-containing NTP-based inhibitor has higher protective properties. Calculated electronic structure using density functional theory can reveal the mechanism for the effect of Cd doping on the anti-corrosive properties of protective layers.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Chen Zhang, Hongqiang Wang, Jun Shen, Xiaodong Wang
Summary: This study investigates the effect of surface free energy and pore volume on the moisture resistance of sol-gel silica coatings, and finds that both factors independently and synergistically affect moisture resistance. As the surface free energy and pore volume decrease, the moisture resistance improves. Once the surface free energy reaches a certain value, the moisture resistance becomes superior, regardless of the microstructure of the coatings. Similarly, once the pore volume of the coatings reaches a certain value, notable moisture resistance is observed, regardless of the surface chemical composition.
APPLIED SURFACE SCIENCE
(2024)
