Article
Polymer Science
Nikunjkumar R. Visaveliya, Seda Kelestemur, Firdaus Khatoon, Jin Xu, Kelvin Leo, Lauren St Peter, Christopher Chan, Tatiana Mikhailova, Visar Bexheti, Ashni Kapadia, Piyali Maity, William P. Carbery, Kara Ng, Dorthe M. Eisele
Summary: The study developed a single-step, microfluidic-supported synthesis method for anisotropic PVMA nanoparticles, demonstrating the impact of different interfacial agents and concentrations on NP shape and diameter. This contributes to a fundamental understanding of colloidal polymerization for predicting shapes below the critical 200 nm regime.
Article
Chemistry, Medicinal
Miroslava Nedyalkova, Giovanni Russo, Philip Loche, Marco Lattuada
Summary: Seeded emulsion polymerization is a well-known method for preparing polymer particles with controlled size and shape. The use of surfactants is critical in guaranteeing colloidal stability and influencing particle morphology. The presence or absence of surfactants can tune the morphology of the particles. Molecular dynamics simulations provide insights into the mechanism and behavior of surfactants during the polymerization process.
JOURNAL OF CHEMICAL INFORMATION AND MODELING
(2023)
Article
Chemistry, Applied
Haifeng Tong, Juan Wang, Liang Qi, Qunyu Gao
Summary: Janus particles (J-OSPs) based on chitosan nanoparticles (CSNPs) and octadecenyl succinic anhydride starch (OSPs) were synthesized using Pickering emulsion method and electrostatic interaction. J-OSPs exhibited various asymmetric structures and their surface characteristics were altered, making them superior in terms of emulsion stability by enhancing hydrophobicity and adjusting surface charges.
CARBOHYDRATE POLYMERS
(2023)
Article
Polymer Science
Seyyedeh Fatemeh Alavi, Payam Abasian, Hormoz Eslami
Summary: In this study, mushroom-like Janus particles consisting of PS as seed and PEA as semispherical centers were successfully synthesized through (seeded) dispersion polymerization. It was found that adjusting the initiator, monomer, stabilizer amount, and polymerization temperature can affect the particle size and PDI percentage at different stages of synthesis. The optimized conditions determined in this work allowed for the synthesis of PS/PEA mushroom-like Janus particles.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2021)
Article
Chemistry, Multidisciplinary
Haoguan Gui, Jieyi Chen, Tiantian Yang, Shixiang Zuo, Xiazhang Li, Chao Yao, Fuxin Liang
Summary: A series of Janus hemispheres with a patchy hemispherical surface and a flat undersurface were synthesized through controlled polymerization-induced phase separation. The hemispherical shape was achieved by polymerizing styrene within wax droplets, followed by grafting hydrophilic polymers on the exposed surface. The patchy hemispherical surface was obtained by introducing hydrophobic acrylate monomers and controlling the polymerization-induced phase separation. The Janus hemispheres were used to fabricate coatings with tunable wettability by grafting zwitterionic polymers.
Article
Chemistry, Multidisciplinary
Zesheng Hua, Guangxu Liu, Jia Man, Jianyong Li, Chenchen Zhou, He Xia, Jianfeng Li
Summary: This study focuses on the phase separation phenomena and spreading behavior of suspended droplets at the air-liquid interface. By utilizing solvent evaporation-induced droplet phase separation, suspended Janus droplets with different morphologies and patchy structure were created. A modified spreading coefficient theory was constructed to predict the phase separation at the air-droplet interface, and factors leading to droplets being able to float were studied. This research has significant potential in various applications for material synthesis.
Article
Chemistry, Physical
Xinyi Shen, Yue Zhang, Duanda Wang, Yanling Huang, Yongyang Song, Shutao Wang
Summary: Polymer-based magnetic particles have been widely used for the separation of biological samples. A new strategy of mediator monomer regulated emulsion interfacial polymerization is presented, which allows effective loading of magnetic nanoparticles and efficient nucleic acid separation. This strategy offers an effective and versatile way for the synthesis of nanoFMPs toward efficient separation in various fields.
Review
Polymer Science
Chen Chen, Linlin Zhang, Na Wang, Dayin Sun, Zhenzhong Yang
Summary: Janus composite particles (JPs) with compartmentalization and anisotropic shape have shown great potentials in various practical applications. Particularly, catalytic JPs are advantageous for multi-phase catalysis with easier separation and recycling. This review briefly surveys typical methods to synthesize JPs and summarizes recent progresses in emulsion interfacial catalysis. The article concludes by calling for more efforts in large-scale precision synthesis of catalytic JPs to meet practical application requirements.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Alex McGlasson, Eva Morgenthaler, Laura C. Bradley, Thomas P. Russell
Summary: This study investigates the interfacial kinetics and assembly mechanism of anisotropic amphiphilic Janus particles using dynamic pendant drop tensiometry. The results shed light on the assembly mechanism of more complex Janus particle morphologies and highlight their effectiveness as interface stabilizers.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Haohong Sun, Shaohui Lin, Flora T. T. Ng, Sushanta K. Mitra, Qinmin Pan
Summary: Uniform anisotropic microparticles with various shapes were successfully synthesized via emulsion interfacial polymerization. Nanoporous microparticles with a heterogeneous structure resembling a walnut were achieved with modified hydrophilic seeds. The potential applications of shape-controllable fluorescent microparticles and surface modification of microparticles through thiol-click reaction were explored.
Article
Polymer Science
Bradley D. Frank, Markus Antonietti, Lukas Zeininger
Summary: A facile one-step approach is reported for the synthesis of polymer particles with tunable characteristics, using dynamically reconfigurable oil-in-water Janus emulsions as structural templates. The resulting particles have intrinsic Janus character and can be further functionalized, promoting directed self-assembly and alignment at fluid interfaces. Applications include technical emulsions, oil recovery, manufacturing of self-assembled architectures, and microstructured interfaces engineering.
Article
Chemistry, Physical
Hiu To Ip, Liangdong Liu, Liangzhi Hong, To Ngai
Summary: Organic-inorganic nanocomposite particles were successfully prepared via Pickering emulsion polymerization using non-functionalized silica nanoparticles. Monodisperse nanocomposite particles with high silica incorporation efficiency were obtained. The wetting effect and electrostatic interaction were found to facilitate the adhesion of silica nanoparticles onto the growing latex particles.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Qi Yu, Li-Jun Mei, Wei-Bing Kuang, Chu-Ran Xu, Rui Tian, Ya-Long Wang, Chong Li, Ming-Qiang Zhu
Summary: Monodisperse polymer hemispheres were fabricated by seed emulsion polymerization, and their morphology was studied using fluorescent microscopy and super-resolution imaging. The polymer colloids were found to consist of hydrophobic cores and hydrophilic surfaces, with a thin hydrophilic surface layer. During seed emulsion polymerization, microphase separation occurred inside each polymer colloid, causing an uneven distribution of the chemical composition. The final shape of the polymer colloids was determined by the postpolymerization washing process.
CHEMISTRY OF MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Elton L. Correia, Nick Brown, Sepideh Razavi
Summary: This review focuses on the behavior of Janus particles in interfacial systems and highlights the impact of particle anisotropy on interfacial mechanics, emphasizing the importance of understanding particle flow behavior in various applications.
Article
Biochemistry & Molecular Biology
Likui Wang, Florian Ion Tiberiu Petrescu, Jing Liu, Hongping Li, Gang Shi
Summary: Dimpled particles with different morphologies can be synthesized through the polymerization of swelled seed particles. These particles can be used in the fabrication of superhydrophobic coatings.
Review
Chemistry, Multidisciplinary
Jing Luo, Jun-Bing Fan, Shutao Wang
Review
Chemistry, Multidisciplinary
Jingxin Meng, Shutao Wang
ADVANCED FUNCTIONAL MATERIALS
(2020)
Article
Polymer Science
Niboqia Zhang, Linxiuzi Yu, Yan-Chun Li, Hong Liu, Zhong-Yuan Lu
Article
Nanoscience & Nanotechnology
Liu Huang, Longlong Zhang, Jinlong Song, Xuyue Wang, Hong Liu
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Materials Science, Composites
Yao-Hong Xue, Min-Wei He, Xiao-Li Liu, Ji-Yuan Xing, Hong Liu
COMPOSITES SCIENCE AND TECHNOLOGY
(2020)
Article
Polymer Science
Hong Liu, Yao-Hong Xue, You-Liang Zhu, Feng-Long Gu, Zhong-Yuan Lu
Article
Chemistry, Physical
Qingbo Xiao, Yonglan Xi, Jian Wang, Datao Tu, Wenwu You, Xiaomei Ye, Hong Liu, Xueyuan Chen, Hongzhen Lin
JOURNAL OF PHYSICAL CHEMISTRY C
(2020)
Article
Multidisciplinary Sciences
Chenglin Yi, Hong Liu, Shaoyi Zhang, Yiqun Yang, Yan Zhang, Zhongyuan Lu, Eugenia Kumacheva, Zhihong Nie
Article
Chemistry, Multidisciplinary
Yongyang Song, Xuefang Dong, Danyi Shang, Xiaofei Zhang, Xiuling Li, Xinmiao Liang, Shutao Wang
Summary: This study demonstrates the synthesis of nanofractal microparticles with rapid protein capture, release, and separation capabilities using a strategy of electrostatic interaction regulated emulsion interfacial polymerization. The controlled growth of nanostructures at the microparticle surface enables fast and efficient protein separation.
Review
Chemistry, Multidisciplinary
Yongyang Song, Han Bao, Xinyi Shen, Xiuling Li, Xinmiao Liang, Shutao Wang
Summary: Biomolecule separation is crucial in downstream applications, and nanoporous materials are the leading materials. Recently, emerging nanoporous materials have been reported for efficient biomolecule separation without the need for monolayer modification.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Xu Cheng, Yuemeng Yang, Yongyang Song, Li-Ping Xu, Shutao Wang
Summary: This study presents a method for the spontaneous separation of similarly sized proteins using a combination of heterostructured porous particles and paper strips. The fabricated paper strips are inexpensive, user-friendly, and disposable, and exhibit good separation performance.
Article
Polymer Science
Zehao Li, Hui Li, Muxi Wang, Zhongyan Zhang, Liting Yang, Lijun Ma, Hong Liu
Summary: By adding nano-silica, the tensile strength of poly(butylene adipate-co-terephthalate)/thermoplastic hydroxypropyl starch (PBAT/TPHSg-SiO2) composite films is significantly improved, with a 35% increase in horizontal tensile strength and a 21% increase in vertical tensile strength after adding 4 phr of nano-silica. When the content of TPHSg-4SiO2 is 40%, the composite films have horizontal and vertical tensile strengths of 9.82 and 12.09 MPa, respectively, and the elongation at break exceeds 500%. Electron micrographs show that TPHSg-4SiO2 is well dispersed in PBAT and exhibits a bi-continuous phase structure at a TPHSg-4SiO2 content of 40%. The blowing PBAT/TPHSg-4SiO2 composite films effectively reduce the cost and still show better mechanical properties, suitable for packaging applications.
Article
Multidisciplinary Sciences
Yongyang Song, Jiajia Zhou, Zhongpeng Zhu, Xiaoxia Li, Yue Zhang, Xinyi Shen, Padraic O'Reilly, Xiuling Li, Xinmiao Liang, Lei Jiang, Shutao Wang
Summary: In this study, the authors synthesized hydrophilic-hydrophobic heterostructure particles (HL-HBPs) using a surface heterogeneous nanostructuring strategy and demonstrated their omnidispersibility. These particles can be dispersed in solvents with different polarity and boiling point, and show efficient adsorption and release of organic dyes.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Xinyi Shen, Yue Zhang, Duanda Wang, Yanling Huang, Yongyang Song, Shutao Wang
Summary: Polymer-based magnetic particles have been widely used for the separation of biological samples. A new strategy of mediator monomer regulated emulsion interfacial polymerization is presented, which allows effective loading of magnetic nanoparticles and efficient nucleic acid separation. This strategy offers an effective and versatile way for the synthesis of nanoFMPs toward efficient separation in various fields.
Article
Chemistry, Multidisciplinary
Feilong Zhang, Jiajia Zhou, Zhen Gu, Man Yang, Siheng Li, Yongyang Song, Jun-Bing Fan, Jingxin Meng, Peiyi Wu, Lei Jiang, Shutao Wang