Article
Materials Science, Multidisciplinary
Xiaofeng Huang, Liujun Song, Xiang Jiang, Xinya Zhang
Summary: In this study, highly monodisperse tetrahedral colloidal particles with four spherical dimples were synthesized using classical seeded polymerization. The depth and number of dimples on the particle surface were precisely controlled by adjusting operation parameters. These anisotropic colloidal particles were successfully assembled with spherical particles, forming colloidal clusters with well-defined complex structures. This research provides a potential strategy for constructing multi-dimensional materials using these anisotropic colloidal particles.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Polymer Science
Wangmeng Hou, Wen Zhong, Hanying Zhao
Summary: The study demonstrated the effectiveness of the polymerization-induced surface self-assembly (PISSA) approach in synthesizing colloidal particles with tunable asymmetric core-shell structures. By using reversible addition-fragmentation chain transfer (RAFT) agents covalently anchored onto silica particles, asymmetric colloidal particles with controllable anisotropy were successfully prepared via RAFT dispersion polymerization of styrene. The morphologies of the particles changed from surface nodules to snowman-like structures and finally to asymmetric spherical structures with eccentrically positioned core-shell structures.
Article
Materials Science, Multidisciplinary
Yu-Chia Chang, Roger Bresoli-Obach, Tetsuhiro Kudo, Johan Hofkens, Shuichi Toyouchi, Hiroshi Masuhara
Summary: This study demonstrates the potential of combining optical trapping and resonant photoexcitation to modify particle-particle interactions and assemble dye-doped particles at the solution interface. Depending on the physicochemical properties of the interface, different morphological changes of the particle assemblies are observed, which can be achieved by controlling the absorption force.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Biochemical Research Methods
Sangwoo Shin
Summary: DC electrokinetics enables the manipulation and assembly of colloidal particles, contributing to the understanding of life origin and the synthesis of new materials for various applications.
Article
Polymer Science
Ion Sandu, Claudiu Teodor Fleaca, Florian Dumitrache, Bogdan Alexandru Sava, Iuliana Urzica, Iulia Antohe, Simona Brajnicov, Marius Dumitru
Summary: A polyester fabric with rectangular openings was used as a sacrificial template for the guiding of a sub-micron sphere aqueous colloid self-assembly process. Different geometries and sizes of polyester fabrics can form PCCs with various shapes. Higher colloid concentrations induce the formation of thicker walls.
Article
Chemistry, Multidisciplinary
Kanako Watanabe, Takuya Shimura, Akira Nagasawa, Daisuke Nagao
Summary: The multipoint lock-and-key particle assembly methodology creates rigid colloidal molecules mimicking rigid polymers by connecting lock particles with anisotropic dents to rod-shaped key particles in the presence of depletants. This assembly technique lowers particle diffusion significantly, suggesting its potential as a promising colloidal model for studying atomic-scale polymers associated with micro Brownian motion.
Article
Multidisciplinary Sciences
Iosif Vasile Nemoianu, Cristian George Dragomirescu, Veronica Manescu (Paltanea), Maria-Iuliana Dascalu, Gheorghe Paltanea, Radu Mircea Ciuceanu
Summary: This study revisits the phenomenon of small magnets floating freely on the water's surface under the influence of a superimposing magnetic field and proposes a quantitative approach to analyze the equilibrium patterns formed by these magnets. The experimental results were found to be in good agreement with the computed data, providing insights into the complex conceptual problem of self-organizing patterns in magnetic systems.
Article
Chemistry, Analytical
Kailiang Zhang, Yukun Ren, Ye Tao, Xiaokang Deng, Weiyu Liu, Tianyi Jiang, Hongyuan Jiang
ANALYTICA CHIMICA ACTA
(2020)
Article
Nanoscience & Nanotechnology
Kailiang Zhang, Yukun Ren, Likai Hou, Ye Tao, Weiyu Liu, Tianyi Jiang, Hongyuan Jiang
MICROFLUIDICS AND NANOFLUIDICS
(2020)
Article
Physics, Applied
Weiyu Liu, Yukun Ren, Ye Tao, Zhuofeng Zhou, Qisheng Wu, Rui Xue, Bobin Yao
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2020)
Article
Chemistry, Analytical
Weiyu Liu, Yukun Ren, Ye Tao, Hui Yan, Congda Xiao, Qisheng Wu
Article
Chemistry, Analytical
Weiyu Liu, Yongjun Sun, Hui Yan, Yukun Ren, Chunlei Song, Qisheng Wu
Article
Computer Science, Information Systems
Xu Lei, Bin Feng, Guiping Wang, Weiyu Liu, Yalin Yang
Article
Biochemical Research Methods
Weiyu Liu, Ye Tao, Rui Xue, Chunlei Song, Qisheng Wu, Yukun Ren
Summary: This study presents an efficient microfluidic approach for continuous transport and localized collection of nanoparticles via hybrid electrokinetics. By combining linear and nonlinear electrokinetics driven by a composite DC-biased AC signal, nanoparticles can be continuously transported and trapped selectively onto metal strips, allowing for localized analyte enrichment. The proposed technique has potential applications in flexible electrokinetic frameworks for continuous-flow analyte manipulation in modern microfluidic systems.
Article
Materials Science, Multidisciplinary
Xiaoming Chen, Yukun Ren, Tianyi Jiang, Likai Hou, Hongyuan Jiang
APPLIED MATERIALS TODAY
(2020)
Article
Chemistry, Analytical
Xiaoming Chen, Yukun Ren, Tianyi Jiang, Likai Hou, Hongyuan Jiang
Summary: A practical device based on induced-charge electroosmotic (ICED) vortices has been developed for high-resolution separation of rich-lipid microalgae, showcasing strong potential in microorganism separation and extraction. This technology demonstrates clear separation and high resolution in nanoparticle manipulation, with applications extending to various fields such as energy security, environmental monitoring, and disease diagnosis.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Kailiang Zhang, Yukun Ren, Meiying Zhao, Tianyi Jiang, Likai Hou, Hongyuan Jiang
Summary: The study introduces a method for manipulating microswimmers using thermal buoyancy-capillary convection in multiple microfluidic systems. By adjusting the voltage applied on microheaters, the direction and velocity of granular samples in liquid buffer can be flexibly controlled, which is applicable to various applications such as cargo delivery and sensing.
ANALYTICAL CHEMISTRY
(2021)
Article
Biochemical Research Methods
Weiyu Liu, Ye Tao, Zhenyou Ge, Jian Zhou, Ruibo Xu, Yukun Ren
Summary: Liquid metal (LM) combines the advantages of solid conductors and rheological fluids, providing new opportunities in the construction of flexible microelectronic and fluidic devices. Continuous electrowetting (CEW) is used to manipulate LM droplets in a buffer medium by driving bipolar counterions to reduce the surface tension at the LM/electrolyte interface. Through this mechanism, LM can induce unidirectional pumping of electrolytes and translate within a device channel, showing potential in the design of smart electrokinetic frameworks.
Article
Chemistry, Analytical
Tianyi Jiang, Yankai Jia, Haizhen Sun, Xiaokang Deng, Dewei Tang, Yukun Ren
Article
Engineering, Chemical
Weiyu Liu, Ye Tao, Yanbo Li, Zhenyou Ge, Qisheng Wu, Yukun Ren
Summary: In this study, the dynamic features of surface charge wave and electric stress induced at various phase interfaces of single-core double emulsion droplets were characterized through transient numerical simulation. A novel prolate/prolate electro-deformation mode was discovered for A/B/A type two-phase droplets. The AC electrostatic attraction between two opposing droplets and the inter-droplet electro-coalescence modes were investigated based on the analysis.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Weiyu Liu, Ye Tao, Yaoyao Chen, Zhenyou Ge, Junshuo Chen, Yanbo Li
Summary: The Janus AC-FFET technique proposed in this study can be effectively used for the development of active microfluidic pumps and mixers driven by pure ICEO, without the need for external moving elements, with both horizontal pumping and transverse mixing flows generated by the induced-charge electrokinetic effect.
APPLIED SCIENCES-BASEL
(2023)
Article
Biochemical Research Methods
Hao Wu, Yukun Ren, Likai Hou, Tianyi Jiang, Hongyuan Jiang
Article
Chemistry, Physical
Yiping Yin, Zhe Wang, Hua Zou
Summary: This study presents a novel method for preparing dimpled polymer-silica nanocomposite particles using interfacial swelling-based seeded polymerization. The optimized conditions allow for a relatively high percentage of dimpled particles to be achieved.
Article
Chemistry, Physical
Brenden D. Hoehn, Elizabeth A. Kellstedt, Marc A. Hillmyer
Summary: Porous materials with nanometer-scale pores have important applications as nanoporous membranes. In this study, ABA triblock copolymers were used as precursors to produce nanoporous polymeric membranes (NPMs) in thin film form by degrading the end blocks. Polycyclooctene (PCOE) NPMs with tunable pore sizes were successfully prepared using solvent casting technique. Oxygen plasma etching was employed to improve the surface porosity and hydrophilicity of the membranes. This study provides a straightforward method to produce tough NPMs with high porosity and hydrophilic surface properties.
Article
Chemistry, Physical
Vladislav S. Petrovskii, Stepan I. Zholudev, Igor I. Potemkin
Summary: This article investigates the behavior of linear and ring polypeptide chains in aqueous solution and explores the properties of the complexes formed by these chains with oppositely charged surfactants. The results demonstrate that the complexes of linear supercharged unfolded polypeptides and the corresponding surfactants exhibit impressive adhesive properties.
Article
Chemistry, Physical
Merve Cevik, Serkan Dikici
Summary: Cardiovascular diseases are a leading cause of death globally, and vascular grafts are a promising treatment option. This study focuses on tissue-engineered vascular grafts (TEVGs) using decellularized parsley stems as a potential biomaterial. The decellularized parsley stems showed suitable properties for TEVGs, providing a suitable environment for human endothelial cells to form a pseudo endothelium. This study showcases the potential of using parsley stems for TEVGs.
Article
Chemistry, Physical
Gustavo A. Vasquez-Montoya, Tadej Emersic, Noe Atzin, Antonio Tavera-Vazquez, Ali Mozaffari, Rui Zhang, Orlando Guzman, Alexey Snezhko, Paul F. Nealey, Juan J. de Pablo
Summary: The optical properties of liquid crystals are typically controlled by electric fields. In this study, we investigate the effects of microfluidic flows and acoustic fields on the molecular orientation and optical response of nematic liquid crystals. We identify several previously unknown structures and explain them through calculations and simulations. These findings hold promise for the development of new systems combining sound, flow, and confinement.
Article
Chemistry, Physical
Xinjun Wu, Xin Guan, Shushu Chen, Jiangpeng Jia, Chongyi Chen, Jiawei Zhang, Chuanzhuang Zhao
Summary: This research presents a novel shape memory hydrogel with a remodelable permanent shape and programmable cold-induced shape recovery behavior. The hydrogel is prepared using specific treatment methods to achieve shape fixation by heating and shape recovery by cooling. Additionally, deformable devices can be obtained by assembling hydrogel blocks with different concentrations.
Article
Chemistry, Physical
Rebecca Hengsbach, Gerhard Fink, Ulrich Simon
Summary: This study examines the properties of DNA functionalized pNipmam microgels and pure pNipmam microgels at different concentrations of sodium chloride and in PBS solutions using temperature dependent H-1-NMR measurements. The results show that DNA modification affects the volume phase transition temperature and the addition of salt and PBS further enhances this effect.
Article
Chemistry, Physical
Ningyi Li, Junhong Li, Lijingting Qing, Shicheng Ma, Yao Li, Baohui Li
Summary: This paper investigates the self-assembly behavior of colloids with competing interactions under spherical confinement and finds that different ordered structures can be formed under different sized spherical confinements. Moreover, more perforated structures are formed in smaller spheres.