Article
Chemistry, Physical
Yuanxia Zhang, Yan Bao, Wenbo Zhang, Ru Xiang
Summary: This study investigated the stabilization mechanism of Pickering emulsion using mesoporous hollow silica microspheres (MHSMs) as stabilizers. The results showed that smaller particle size and shell thickness of MHSMs can improve the stability of Pickering emulsion, and MHSMs with intermediate hydrophobicity and suitable oil/water ratio are favorable for stability. Increasing the concentration of MHSMs within a certain range can enhance the stability of Pickering emulsion, with the optimal concentration being 1.25 mg/mL. This research opens up possibilities for the fabrication of functional materials through Pickering emulsions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Zehu Wang, Zongqi Li, Ruiye Yan, Guangshuo Wang, Yanming Wang, Xiaoliang Zhang, Zhixiao Zhang
Summary: In this study, hollow structured molecularly imprinted polymer microspheres (H-MIPs) were synthesized using Pickering emulsion polymerization with TiO2 nanoparticles. The H-MIPs showed irregular spherical form with sunken surface and perfect hollow structure, and exhibited fast binding kinetics, considerable binding amount, accurate binding selectivity, and good regenerability towards dibutyl phthalate. These H-MIPs microspheres have potential applications in the environmental and analytical fields involving dibutyl phthalate.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Applied
Guanqing Sun, Lin Cheng, Mengyue Tong, Linlin Chen, Jing Luo, Ren Liu
Summary: In this paper, the use of hollow microspheres prepared from Pickering emulsion droplets in the thermal cured epoxy resin formulations is reported. The addition of hollow microspheres reduces the shrinkage stress of the resin, with polydisperse hollow microspheres being more effective in reducing shrinkage stress. The well-dispersed hollow microspheres in the resin matrices do not undermine the basic mechanical properties of the coating.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Chemistry, Physical
Yungang Bai, Fan Zhang, Kun Xu, Xinyue Wang, Chao Wang, Hao Zhang, Ying Tan, Pixin Wang
Summary: This study effectively controlled the surface wettability of polymer microspheres using the Pickering emulsion template method, achieving efficient oil-water separation with a valuable strategy for designing materials with special wettability.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Chemical
Xinyi Chen, Yunlong Wu, Ru Feng, Kai Yu, Jianming Pan
Summary: In this study, hollow microspheres were efficiently prepared using a highly reactive monomer. The resulting microspheres exhibited excellent adsorption capacities and selectivity for uranium, making them a promising adsorbent for efficient uranium extraction. This work not only presents a new clue for fabricating functional microspheres, but also provides a novel platform for uranium capture.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Junjie Tao, Kaiyun Wu, Yaxin Chen, Wei Li, Yao Gu, Ren Liu, Jing Luo
Summary: In this study, porous polymeric microspheres were prepared using a one-pot strategy involving photopolymerization and organic solvents as porogens. The oil phase, containing organic solvents and photopolymerizable materials, was stabilized in water to form a stable emulsion. Upon UV irradiation, the photopolymerizable materials underwent polymerization to form microspheres, and the subsequent removal of organic solvents resulted in the generation of porous polymeric microspheres. The effects of organic solvents, as well as the chemical structure and concentration of photopolymerizable materials, on the microsphere structure were systematically explored. This strategy allows for the scalable and facile preparation of porous microspheres in a time-saving and energy-saving manner.
Article
Chemistry, Analytical
Zeqin Li, Houshi Ma, Yuxin Guo, Hao Fang, Chunsen Zhu, Jinbin Xue, Wenzhong Wang, Gangyin Luo, Yi Sun
Summary: Tumor markers play a crucial role in cancer diagnosis, evaluation, and therapy monitoring. This study successfully synthesized uniform magnetic/fluorescent microspheres using the Pickering emulsion polymerization method. The microspheres were designed to enable the detection of multiple tumor markers and exhibited superior detection performance. They have great potential for application in the field of tumor markers.
Article
Chemistry, Multidisciplinary
Zhiyong Li, Yunlei Shi, Anlian Zhu, Yuling Zhao, Huiyong Wang, Bernard P. Binks, Jianji Wang
Summary: The study demonstrates a light-responsive Pickering emulsion that can undergo reversible transition between emulsification and demulsification triggered by UV and visible light. This system not only enables catalytic reaction and product separation, but also allows for the reuse of emulsifier and catalyst.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Bin Yan, Xiaoyu Wang, Xiaoling Zhang, Shengqu Liu, Honglang Lu, Rong Ran
Summary: In this study, hydroxyapatite nanorods were prepared and hydrophobically modified before being loaded on polycaprolactone microspheres. The modified microspheres exhibited a higher adsorption capacity for malachite green dye compared to pure hydroxyapatite. The adsorption process was found to be spontaneous and followed a pseudo-second-order kinetic model. Additionally, the adsorbent showed excellent reusability and stability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Zhile Wang, Changshui Jing, Wenxin Zhai, Yinghao Li, Wenxia Liu, Fengshan Zhang, Shan Li, Huili Wang, Dehai Yu
Summary: In this study, a novel MIL-101(Fe)/Polysulfone (MP) composite hollow microsphere was fabricated via a Pickering emulsion template approach. The loading of MIL-101(Fe) played a crucial role in determining the porosity, density, and optical properties of the MP composite microspheres. The MP composite microspheres showed excellent MB removal performance, higher adsorption rate compared to MIL-101(Fe) and Polysulfone (PSF), and good degradation efficiency and reusability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Polymer Science
B. Fouconnier, F. Lopez-Serrano, R. I. Puente Lee, J. E. Terrazas-Rodriguez, A. Roman-Guerrero, M. C. Barrera, J. Escobar
Summary: The Pickering emulsion polymerization of styrene, divinylbenzene, and sodium 4-vinyl benzene sulfonate for in situ surface-modification of silica nanoparticles was investigated. Different structures of SNps were formed at different DVB concentrations, and the polymerization mechanisms related to their formation were discussed.
EXPRESS POLYMER LETTERS
(2021)
Article
Nanoscience & Nanotechnology
Dongchan Yi, Gwajeong Jeong, Ji-Hun Seo, Myong Jae Yoo, Hyunseung Yang
Summary: Carbon dots (CDs) with tailored surface wettability were investigated as Pickering emulsifiers. The surface-modified CDs showed strong adsorption at the oil-water interface, exhibiting high emulsification behavior. The density of hydrophobic hexyl isocyanates on the CDs affected the emulsification behavior. The application of the surface-modified CDs as emulsifiers in Pickering emulsion polymerization was demonstrated, and the resulting polystyrene particles showed adsorption performance for heavy metal ions and organic dyes, indicating potential for wastewater treatment.
ACS APPLIED NANO MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Ziyi Feng, Boyu Zhou, Xin Su, Ting Wang, Shu Guo, Huazhe Yang, Xiaoting Sun
Summary: This study aimed to develop a multiphasic Janus particle system for programmed drug delivery. Triple-phase Janus microparticles with different degradation properties in each phase were generated using a one-step microfluidic preparation process. The particles exhibited programmed degradation behaviors and partial degradation as well as triggered cargo release in response to changes in temperature or pH. By modifying the particles with graphene nanosheets and silica nano-spheres, their functions were enriched. Co-loading of doxorubicin and curcumin in the triple-phase microparticles enabled zonal drug loading, and the particles showed programmed release behavior and enhanced tumor inhibition efficacy.
MATERIALS & DESIGN
(2023)
Article
Engineering, Chemical
Ahmed I. A. Abd El-Mageed, Ahmed Esmail Shalan, Lamiaa A. Mohamed, Hisham A. Essawy, Fouad Taha, Amro K. F. Dyab
Summary: Styrene was emulsified in water using magnetite nanoparticles at different concentrations and pH values to form stable template drops for polymerization, resulting in magnetic microspheres. pH was found to dominate the hydrophilicity of particles and affect the size and formation of microspheres.
POLYMER ENGINEERING AND SCIENCE
(2021)
Article
Chemistry, Physical
Chaolumen Wu, Zhenda Lu, Zhiwei Li, Yadong Yin
Summary: Template-mediated self-assembly of colloidal nanoparticles into secondary structures is an important method for exploring new materials with unique collective properties. A general method to prepare submicron hollow superstructures by self-assembling hydrophobic colloidal nanoparticles together with polymeric additives within oil-in-water emulsion droplets is reported. The resulting hollow superstructures of nanoparticles show potential for diverse applications.
Article
Polymer Science
Zhongming Yuan, Hiroko Yamamoto, Shinji Kanehashi, Takeshi Shimomura
Summary: This study reports the synthesis of a flexible light-emitting polymer film using a solution blending method. The selective positioning of MEH-PPV molecules in the PS phase of the film was confirmed. The film exhibited a nanometer-scale luminescent domain with low aggregation quenching and showed good elastomeric characteristics.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2024)
