Article
Nanoscience & Nanotechnology
Le Van Lich, Ha Thi Dang, Van-Hai Dinh
Summary: In this study, self-assembled toron structures were discovered in ferroelectric materials, which were formed due to combined effects of geometrical confinement and dipole interactions of different ferroelectric phases. Additionally, the chirality of the toron texture can be controlled by a homogeneous electric field. These findings may open up possibilities for novel solitonic polar structures and their technological applications.
SCRIPTA MATERIALIA
(2023)
Article
Chemistry, Multidisciplinary
Jiaqi Wang, Hanzhang Chen, Yan Zhang, Yan Zhuang, Hailang Jia, Mingyun Guan
Summary: In this work, core-shell ZnO@Bi2O3 composites were fabricated using a solid-phase method. The composites exhibited uniform distribution of Bi2O3 film on the surface of ZnO particles. The optimized ZnO@Bi2O3 composites showed excellent electrochemical performance and cycle stability, with potential applications in energy storage. The Bi2O3 layer effectively suppressed hydrogen evolution and the migration of Zn(OH)(4)(2-), improving the performance of the zinc anode.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Physical
Di Liu, Junyu Yan, Kai Wang, Yundong Wang, Guangsheng Luo
Summary: A continuous synthesis method for core-shell upconversion nanoparticles of less than 10 nm was developed using coiled tube embedded flask reactors and a flow solvothermal co-participation reaction, achieving fast nucleation of hexagonal nanocrystals in less than 9 min residence time. A two-step reaction strategy was created for the synthesis of beta-NaYF4:Gd,Yb,Er/Ho/Tm@NaYF4 particles without intermediate purification.
Article
Chemistry, Organic
Milagros Aguilar-Martinez, Judas Tadeo Vargas-Durazo, Adrian Ochoa-Teran, Hisila Santacruz-Ortega, Karen Ochoa-Lara, Arturo Zizumbo-Lopez, Juan Carlos Galvez-Ruiz
Summary: An efficient methodology for the synthesis of neutral reducing agents supported on Merrifield resin has been developed, leading to the successful generation of a library of 40 agents with high yields and reusability potential.
Article
Materials Science, Multidisciplinary
Fei Li, Wei Cui, Zhaobo Tian, Jie Zhang, Songmo Du, Zhanglin Chen, Shijia Zhang, Kexin Chen, Guanghua Liu
Summary: High-purity SiC/graphene powders with controllable core-shell structure were successfully prepared by combustion synthesis. The thickness of synthesized graphene was regulated by changing the Mg/SiC mass ratio, and the interface between SiC and graphene was well bonded. These powders have great potential for various applications.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Sajeevi S. Withanage, Vanessa Charles, Bhim Chamlagain, Robert Wheeler, Shin Mou, Saiful Khondaker
Summary: The study presents a new method for synthesizing MoO2/MoS2 core-shell nanoparticles, a novel form of TMD nanostructure, using chemical vapor deposition and precisely controlling gas flow rate and sulfur vapor introduction time to achieve dense coverage of nanoparticles ranging from 50-120 nm in size.
Article
Chemistry, Analytical
Wenjuan Shi, Ah-Hyeon Park, Young-Uk Kwon
Summary: In this work, carbon-supported (Pd,Cu)@Pt core-shell nanoparticles with tunable Pt shell thickness are successfully synthesized by reacting pre-formed PdxCuy NPs with Pt(IV) ions. The catalysts exhibit enhanced catalytic activities and superior long-term durability, providing guidance for the commercialization of proton exchange membrane fuel cells.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
M. Tarnaoui, A. Zaim, M. Kerouad
Summary: This study provides an exhaustive analysis of the ferroelectric and thermal properties, as well as phase diagrams, of a nanoparticle with antiferroelectric core/ferroelectric shell. The results indicate that the core exchange interaction and transverse field have considerable implications on critical temperature and properties. The study suggests the important role played by the core exchange interaction in controlling the transition temperature and provides insights into its effect on critical properties.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Yingyue Zhang, Zhenzhen Guo, Hanrui Zhu, Wenkui Xing, Peng Tao, Wen Shang, Benwei Fu, Chengyi Song, Yuan Hong, Michael D. Dickey, Tao Deng
Summary: This report presents nanoparticles composed of a liquid gallium core with a reduced graphene oxide (RGO) shell, which exhibit high photothermal and photoacoustic performance for imaging applications. The Ga@RGO nanoparticles show significant enhancement in photoacoustic signals compared to bare gallium nanoparticles and gold nanorods. They not only serve as contrast agents for photoacoustic imaging, but also open up new possibilities for the design of liquid metal-based nanomaterials.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Analytical
Bing Liu, Hanyu Tang, Qian Liu, Wenwen Wang, Haitao Li, Shiya Zheng, Fei Sun, Xiangwei Zhao
Summary: In this study, a novel surface-enhanced Raman scattering-based Western blot (SERS-WB) was proposed for accurate quantitative detection of low-abundance proteins. SERS nanotags were used as quantitative labels of proteins, and the target protein on the membrane could be directly identified by colorimetric signal due to the aggregation effect of nanoparticles.
Article
Materials Science, Composites
Nathaniel Wellington, Shreyas Pathreeker, Ian D. Hosein
Summary: We used the Light-Induced Self-Writing (LISW) technique to fabricate vertically-aligned polymer composite microstructures with core-shell morphology. Our results indicate that photopolymerization-driven nanoparticle phase separation is possible, and LISW is a highly attractive materials fabrication technique. Through this technique, we obtained a microstructure array with exemplary core-shell morphologies.
COMPOSITES COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Jacob A. Erstling, Nirmalya Bag, Thomas C. Gardinier, Ferdinand F. E. Kohle, Naedum Domnwachukwu, Scott D. Butler, Teresa Kao, Kai Ma, Melik Z. Turker, Grant B. Feuer, Rachel Lee, Nada Naguib, James F. Tallman, Henry F. Malarkey, Lieihn Tsaur, William L. Moore, Dana V. Chapman, Tangi Aubert, Saurabh Mehta, Richard A. Cerione, Robert S. Weiss, Barbara A. Baird, Ulrich B. Wiesner
Summary: The study examines the interactions of fluorescent and poly(ethylene glycol)-coated (PEGylated) core-shell silica nanoparticles with biological barriers during oral delivery. It finds that ultra-small nanoparticles below 10 nm diameter passively pass through tight junctions, while particles above 20 nm diameter are actively transported through cells. Additionally, the in vivo experiments in mice demonstrate successful passage through the body and renal clearance without protein corona formation, suggesting the nanoparticles as viable candidates for oral administration.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Yameng Wang, Yan Zhang, Cheng Du, Jian Chen, Zhengfang Tian, Mingjiang Xie, Liu Wan
Summary: The study demonstrated that the three-dimensional hierarchical CoFeP@nickel-manganese sulfide nanoarrays constructed on a flexible carbon cloth have enhanced electrical conductivity and efficient ion diffusion, leading to improved performance for hybrid supercapacitor applications.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Physical
Yizhen Shao, Kaiwen Nie, Maria Iliut, Finn Box, Dai Luan, Yuan Shen, Weimiao Wang, William W. Sampson, Ingo Dierking, Aravind Vijayaraghavan
Summary: The vortex ring effect is used to generate three-dimensional assemblies of graphene oxide (GO) flakes in water, which leads to the formation of GO hydrogel and aerogel microparticles with complex shapes. By using electrohydrodynamic VR effect, the real-time self-assembly of GO core-shell hydrogel microparticles with spherical, donut and jellyfish shapes can be observed and controlled. The formation of different shapes is determined by dimensionless Weber and Ohnesorge numbers, and the microparticles can be used for efficient adsorption and removal of anionic contaminants in water with tuneable adsorption capacity.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Applied
Puyam S. Singh, Vinod K. Aswal, Wilhelm Schwieger
Summary: The optimal design of Beta zeolite membrane with a three-dimensional 12-ring interconnected channel system is essential for environmentally sustainable industrial separation applications. A faster crystal growth route from colloidal solution results in the formation of a poly (nanocrystalline) zeolite Beta membrane. The SANS study has revealed the functional diversity of core-shell precursor nanoparticles and their role in influencing the crystal growth process for Beta membrane formation.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)