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
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
Mathematics, Interdisciplinary Applications
Gaurav Nath, Bahni Ray, Jayati Sarkar
Summary: In this study, the relevance of the lattice Boltzmann method (LBM) for soft matter research was discussed, and a simulation of self-assembly of Janus spheres was conducted. Thermal fluctuations and close contact corrections were considered, and preliminary results were presented and compared with existing literature. The study also highlighted the challenges faced by LBM in tackling such problems.
COMPUTATIONAL PARTICLE MECHANICS
(2022)
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, Physical
Denise Chirinos-Flores, Rodrigo Sanchez, Pedro Diaz-Leyva, Anna Kozina
Summary: The study investigates the structure and dynamics of asymmetrically decorated silica-based Janus particles in a hydrophobic solvent, observing gelation of amphiphilic Janus particles with asymmetric surface decoration in the hydrophobic medium. The influence of particle asymmetry on gel structure and dynamics is discussed, revealing compact structures with contributions of asymmetric short-range attractions and cross-term repulsions to the net effective interaction potential.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(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
Lukasz Baran, Malgorzata Borowko, Wojciech Rzysko, Jakub Smolka
Summary: We use Monte Carlo simulations to investigate the behavior of Janus spheres composed of attractive and repulsive parts confined between two parallel solid surfaces. The adsorption isotherms and the impact of density on morphology are determined. Unique structures such as bilayer and three-layer structures at different distances from the walls are observed. The positional and orientational ordering in these layers are affected by selected parameters, with highly ordered hexagonal lattices formed in some cases.
Article
Chemistry, Multidisciplinary
Voichita Mihali, Andrei Honciuc
Summary: The study demonstrates the generation of tunable pore size freestanding membranes using amphiphilic Janus nanoparticles. By synthesizing specific Janus nanoparticles and processing them under certain conditions, the structural organization and preparation process of membranes can be achieved.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Yusei Kobayashi, Arash Nikoubashman
Summary: This study investigates the self-assembly of amphiphilic cubic colloids using molecular dynamics and rejection-free kinetic Monte Carlo simulations. By varying the number and location of solvophobic faces on the cubes, the size and shape distributions of the self-assembled aggregates are determined. The results show that the binding energy and temperature influence the stability and size of the aggregates. The shapes of the aggregates range from elongated rods to fractal objects and compact spheres, depending on the number and arrangement of solvophobic patches on the cubic colloids.
Article
Multidisciplinary Sciences
Jared T. Wiemann, Danh Nguyen, Ying Li, Yan Yu
Summary: This study investigates the interaction of amphiphilic Janus nanoparticles with lipid vesicles exhibiting phase-separated microdomains through experiments and simulations. The results show that Janus nanoparticles preferentially bind to and extract lipids from the liquid-disordered domains of the vesicles, causing the vesicles to wrinkle and deform. These deformations are driven by the surface anisotropy of the Janus nanoparticles.
Article
Chemistry, Physical
Taiheng Yin, Zihao Yang, Fengfan Zhang, Meiqin Lin, Juan Zhang, Zhaoxia Dong
Summary: Amphiphilic Janus nanosheets spontaneously aggregate at the oil-water interface and exhibit unique mechanical responses under vertical pressure. The morphology of the assembled particle film is controlled by nanosheet concentration, probe wettability, and interface density. The presence of these nanosheets reduces stiffness and enhances flexibility and deformability, resulting in larger deformation under smaller vertical stress.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Wei Li, Daodao Hu, Jinxin Ma, Shukun Shen
Summary: A simple photolysis route was proposed to prepare Amphiphilic Janus Particles (AJP) based on SiO2 microspheres. The AJP exhibited hydrophilic and hydrophobic sides and showed excellent adsorption properties at the water-oil interface.
Article
Chemistry, Physical
Derong Lu, Shuai Hou, Sheng Liu, Qirong Xiong, Yonghao Chen, Hongwei Duan
Summary: We report the self-assembly of polymer-coated magnetoplasmonic Janus nanoparticles driven by amphiphilicity, which results in well-defined colloidal ensembles with controllable size, morphology, and dimension. By coating pH-responsive block copolymer and hydrophilic polymers on plasmonic and magnetic sides of the nanoparticles, respectively, we can achieve a direct correlation between the amphiphilicity of the building blocks and the structural parameters of the ensembles. This study provides insight into the self-assembly of functional nanocrystals and offers possibilities for tuning interparticle distance and studying metal-fluorophore interaction.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Mathematics, Interdisciplinary Applications
Gaurav Nath, Bahni Ray, Jayati Sarkar
Summary: The relevance of the lattice Boltzmann method (LBM) for soft matter in relation to other simulation methods is discussed. A popular self-assembly problem of Janus spheres is set up in LBM, incorporating thermal fluctuations, close contact corrections, and a novel periodic boundary condition for finite-sized 3D particles. Preliminary results are presented and compared with existing literature, highlighting the challenges LBM faces in tackling such problems.
COMPUTATIONAL PARTICLE MECHANICS
(2022)
Article
Chemistry, Multidisciplinary
Xian Qi, Yaxian Du, Ziqiang Zhang, Xu Zhang
Summary: Janus particles for oil-water separation have been widely studied. In this study, bowl-shaped Janus particles were prepared using a thiol-ene click reaction and selective etching. These particles showed convex hydrophilic and concave oleophilic surfaces and exhibited high efficiency in separating micro-sized oil droplets from an emulsion within a short period of time. The underlying mechanism for the coalescence of oil droplets using these Janus particles was proposed based on experimental and theoretical results.
Article
Chemistry, Physical
Deepti Srivastava, C. Heath Turner, Erik E. Santiso, Keith E. Gubbins
JOURNAL OF PHYSICAL CHEMISTRY B
(2018)
Article
Chemistry, Multidisciplinary
Surendra Kumar Jain, Roland J. -M. Pellenq, Keith E. Gubbins, Xuan Peng
Article
Chemistry, Physical
Cody K. Addington, J. Matthew Mansell, Keith E. Gubbins
MOLECULAR SIMULATION
(2017)
Article
Chemistry, Physical
Kaihang Shi, Kai Gu, Yifan Shen, Deepti Srivastava, Erik E. Santiso, Keith E. Gubbins
JOURNAL OF CHEMICAL PHYSICS
(2018)
Article
Engineering, Multidisciplinary
Keith E. Gubbins, Kai Gu, Liangliang Huang, Yun Long, J. Matthew Mansell, Erik E. Santiso, Kaihang Shi, Malgorzata Sliwinska-Bartkowiak, Deepti Srivastava
Article
Chemistry, Physical
Cody K. Addington, Yun Long, Keith E. Gubbins
JOURNAL OF CHEMICAL PHYSICS
(2018)
Article
Chemistry, Multidisciplinary
Kaihang Shi, Erik E. Santiso, Keith E. Gubbins
Article
Materials Science, Multidisciplinary
Monika Jazdzewska, Malgorzata Sliwinska-Bartkowiak, Kamila Domin, Dorota M. Chudoba, Anatoly I. Beskrovnyi, Dimitr S. Neov, Keith E. Gubbins
BULLETIN OF MATERIALS SCIENCE
(2019)
Article
Chemistry, Multidisciplinary
Kaihang Shi, Erik E. Santiso, Keith E. Gubbins
Article
Chemistry, Physical
Kaihang Shi, Yifan Shen, Erik E. Santiso, Keith E. Gubbins
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
(2020)
Article
Chemistry, Multidisciplinary
Chongzhi Qiao, Xiaochen Yu, Xianyu Song, Teng Zhao, Xiaofei Xu, Shuangliang Zhao, Keith E. Gubbins
Article
Chemistry, Physical
P. Montero de Hijes, K. Shi, E. G. Noya, E. E. Santiso, K. E. Gubbins, E. Sanz, C. Vega
JOURNAL OF CHEMICAL PHYSICS
(2020)
Article
Chemistry, Physical
Kaihang Shi, Erik E. Santiso, Keith E. Gubbins
Summary: The estimation of a microscopic pressure tensor for an adsorbed thin film on a planar surface is challenging, but defining a coarse-grained tangential pressure can yield unique results. This method has potential applications in porous materials and can help understand pressure enhancement in strongly wetting systems.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Biographical-Item
Chemistry, Physical
Martin Schoen, Robert Evans, Keith E. Gubbins, Juergen P. Rabe, Matthias Thommes, George Jackson
Article
Chemistry, Physical
Kaihang Shi, Edward R. Smith, Erik E. Santiso, Keith E. Gubbins
Summary: This paper reviews methods for calculating the microscopic pressure tensor and establishes connections between different pressure forms for equilibrium and nonequilibrium systems. It also points out challenges in the field, including historical controversies over the definition of the microscopic pressure tensor, difficulties with many-body and long-range potentials, insufficient software and computational tools, and a lack of experimental routes to probe the pressure tensor at the nanoscale. Possible future directions are suggested.
JOURNAL OF CHEMICAL PHYSICS
(2023)