Article
Multidisciplinary Sciences
Meneka Banik, Shaili Sett, Chirodeep Bakli, Arup Kumar Raychaudhuri, Suman Chakraborty, Rabibrata Mukherjee
Summary: Experimental and simulation studies have revealed the influence of substrate wettability on the orientation of Janus particles during self-assembly. The particles show specific orientation on hydrophilic and hydrophobic substrates, while exhibiting random arrangement on neutral substrates.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Multidisciplinary
Hossein Eslami, Florian Mueller-Plathe
Summary: The self-assembly of triblock Janus particles and the relative stability of different lattices were simulated. The nucleation process consists of two steps: the formation of a compact and disordered liquid cluster, followed by the reorientation of particles to form crystalline nuclei. The nucleation barriers for pyrochlore and perovskite were similar to previously studied 2D kagome lattices, while the barrier for diamond was larger.
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, Physical
Hossein Eslami, Ali Gharibi, Florian Mueller-Plathe
Summary: The study employed a model to simulate nucleation and solid-solid phase transitions of triblock Janus particles, revealing a two-step mechanism. The distinction between unbiased and biased simulations lies in the generation of multiple nuclei and their growth processes.
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
(2021)
Article
Chemistry, Multidisciplinary
Maximilian Niehues, Sabrina Engel, Bart Jan Ravoo
Summary: Stimuli-responsive self-assembly of plasmonic magnetic dumbbell Janus nanoparticles (Au-Fe3O4) was demonstrated using the host-guest interaction of cyclodextrin and arylazopyrazole. Efficient ligand exchange procedures allowed the introduction of functional ligands to the gold or magnetite core of the dumbbell, leading to distinct nanoparticle superstructures in aqueous solutions. These superstructures could be modulated with light, showing reversible formation and fragmentation.
Article
Chemistry, Multidisciplinary
Shanshan Li, Xiaobo Liu, Hao Zhang, Yuhua Mao, Tangxin Zhang, Jianli Wang
Summary: This study reports the fabrication of shape-tunable polymeric Janus nanoparticles with hollow cavities derived from polymerization induced self-assembly based crosslinked vesicles for the first time. These novel nanoparticles can be applied to a wide range of applications where nanoparticles with controllable hollow morphologies are needed.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Zhan-Wei Li, Yu-Wei Sun, Yan-Hui Wang, You-Liang Zhu, Zhong-Yuan Lu, Zhao-Yan Sun
Summary: Using simple deformable triblock Janus colloids, increasing particle softness enhances the self-assembly and photonic bandgap performance of the structures. Direct pyrochlore lattices formed from overlapping soft particles exhibit larger photonic bandgaps than nonoverlapping structures, and proper overlap caused by softness can significantly improve the photonic properties of the structures.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Materials Science, Biomaterials
Yadu Nath Vakkipurath Kodakkadan, Charlie Maslen, Petr Cigler, Frantisek Stepanek, Ivan Rehor
Summary: This method involves using different types of microgel platelets to self-assemble into ordered 2D structures with material anisotropy on an inclined plane. Through gravitational pull, the microgel platelets self-orient and form densely packed structures at the bottom of the tilted plane.
JOURNAL OF MATERIALS CHEMISTRY B
(2021)
Article
Chemistry, Multidisciplinary
Qingguang Xie, Jens Harting
Summary: This study reports the capillary assembly of magnetic ellipsoidal Janus particles at a fluid-fluid interface, where the particles can deform the interface and generate different structures depending on their tilt angle, and can be actively controlled by applying an external magnetic field.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Wenjuan Zhou, Lei Liu, Jianan Huang, Ying Cai, Martien A. Cohen Stuart, Renko de Vries, Junyou Wang
Summary: A new assembly system based on a cationic triblock polypolypeptide and anionic PAMAM dendrimers can form stable virus-like nanorods. Increasing the generation of the dendrimers affects the length and height of the particles, while the width remains unaffected. This system may be useful for designing functional virus-like particles such as vaccines.
Article
Chemistry, Physical
Zhong Zeng, Ziyun Li, Qili Li, Guangjie Song, Meng Huo
Summary: Polymerization-induced self-assembly (PISA) has been employed as a general strategy to fabricate biomimetic hydrogels and organogels with tailored nanostructures and excellent mechanical properties. The hydrogels with nanostructured spherical domains exhibit remarkable strength, toughness, stretchability, and recoverability, which are attributed to the unique network architecture. The successful fabrication of various nanostructured gels confirms the general feasibility of the PISA strategy and inspires the design of functional nanostructured gels.
Article
Chemistry, Multidisciplinary
Christian Hils, Joachim Schmelz, Markus Drechsler, Holger Schmalz
Summary: This study presents a facile method for producing worm-like Janus micelles through crystallization-driven self-assembly of a double-crystalline triblock terpolymer. These amphiphilic Janus micelles exhibit excellent interfacial activity and can be easily produced in solution through a simple heating and cooling protocol.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Engineering, Environmental
Yujing Zheng, Yue Lian, Hongliang Bao, Haixian Guo, Yongfeng Hu, Jing Zhao, Huaihao Zhang
Summary: Biological self-assembly is utilized in this study to combine biomass membrane with carbon membrane, forming a Janus membrane (FAS-MC@M) with low energy consumption and high efficiency. The biomass-derived carbon membrane has superior photothermal conversion efficiency and enhanced salt resistance. The biomass layer ensures rapid water transfer to the Janus interface and inhibits salt crystals formation. Furthermore, it provides thermal insulation properties and protection against oil pollution, resulting in desirable evaporation desalination potential.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Umesh Dhumal, Umashankar Erigi, Mukta Tripathy
Summary: This study investigates the structure and phase behavior of polymer-Janus nanorod mixtures using PRISM theory and molecular dynamics simulations. The results show that the system undergoes transitions from depletion-driven contact aggregation to dispersion and then to bridging-driven phase separation. At high Janus nanorod densities, the system exhibits a transition from depletion-driven macrophase separation to dispersion, and then to chemical anisotropy-driven self-assembly.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Caleb H. Meredith, Alexander C. Castonguay, Yu-Jen Chiu, Allan M. Brooks, Pepijn G. Moerman, Peter Torab, Pak Kin Wong, Ayusman Sen, Darrell Velegol, Lauren D. Zarzar
Summary: In this study, the chemomechanical framework underlying the self-propulsion of biphasic Janus oil droplets solubilizing in aqueous surfactant is uncovered. The influence of oil mixing, droplet shape, and oil solubilization rates on droplet propulsion is elucidated. Spatiotemporal control over droplet swimming speed and orientation is demonstrated through the application of thermal gradients.