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
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
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.
Article
Chemistry, Multidisciplinary
Chenyang Wang, Shujuan Ma, Yinmao Wei, Junjie Ou
Summary: The study focuses on the use of cationic surfactant hexadecyl trimethyl ammonium bromide and co-surfactant octadecylamine to improve the stability of Pickering emulsions and arrange micron-sized silica particles at the toluene-water interface through electrostatic interaction. Organosilane reagents are also added to construct asymmetric hydrophilic or hydrophobic mesoporous onto the silica particles surface. The cation surfactant-assisted Pickering emulsion method is simple and effective, making it applicable for the synthesis of dual Janus silica particles for specific applications.
Article
Chemistry, Multidisciplinary
Jiaxian Liu, Zhaoqi Tan, Xiaozhong Qu, Fuxin Liang, Zhenzhong Yang
Summary: Cross-linked epoxy resin (EP) single-hole Janus hollow spheres are prepared by cross-linking induced phase separation and selective modification. The size of the hole and cavity can be controlled by adjusting the solvent content and cross-linker concentration. Using frozen wax as the core material allows for effective protection of the sphere's interior surface, enabling selective modification.
Review
Chemistry, Multidisciplinary
Danqing Zou, Cong Wang, Fei Xiao, Yuchen Wei, Lin Geng, Lei Wang
Summary: Janus particles, also known as Yin-Yang structured particles or bifacial asymmetric particles, have gradually become a new type of functional materials in various fields due to their unique structure and function. In the field of environmental detection, Janus materials can provide new research directions for improving detection sensitivity, selectivity, and stability.
PROGRESS IN CHEMISTRY
(2021)
Article
Materials Science, Ceramics
G. E. Abrosimova, N. A. Volkov, E. A. Pershina, V. V. Chirkova, I. A. Sholin, A. S. Aronin
Summary: The influence of various alloying elements on the crystallization process and phases of Co-Fe-B amorphous alloys was studied, showing that higher concentrations lead to smaller nanocrystal sizes. The transition of elements from a bcc lattice to an hcp lattice results in multiphase crystallization.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Chemistry, Analytical
Touvia Miloh, Jacob Nagler
Summary: A theoretical study was conducted on the hydrodynamic and electrokinetic response of metallic spherical polarized colloids and metallodielectic Janus particles under arbitrary non-uniform ambient electric fields. New expressions for dielectrophoretic and induced-charge electrophoretic forces and moments were derived and compared with existing solutions. The levitation problem of metallic and Janus particles near a powered electrode in a cylindrical pore was also analyzed.
Article
Chemistry, Multidisciplinary
Rajarshi Roy Raju, Joachim Koetz
Summary: This study reports a modified approach for the batch scale preparation of completely engulfed core-shell emulsions or partially engulfed Janus emulsions with colorful optical properties. The in situ reduction of gold chloride at the olive oil interface leads to the formation of compartmentalized emulsion droplets in water, with time-dependent morphological transformations observed depending on the presence of chitosan or presynthesized AuNPs. The Pickering effect of AuNPs brings color effects to microdroplets and induces surprising self-assembly.
Article
Chemistry, Multidisciplinary
Molly Lightowler, Shuting Li, Xiao Ou, Xiaodong Zou, Ming Lu, Hongyi Xu
Summary: This study elucidated the structure of a new crystal form of Indomethacin, delta-indomethacin, using 3D electron diffraction and corrected a previous misunderstanding. The findings demonstrate the powerfulness of 3D electron diffraction in the study of polymorphic structures.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Polymer Science
Giovanni Russo, Marco Lattuada
Summary: Post-synthesis modifications have been used to prepare non-spherical polymer particles with Janus characteristics. By selectively dissolving one face of the Janus colloids, intriguing shapes such as mushroom-like and Janus dimpled particles can be obtained. The composition of the PMMA face and the addition of a cross-linker also affect the particles' morphology. This method provides a new approach for controlling the shape of polymer particles.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Muhammad Saqib, Phong A. Tran, Batur Ercan, E. Yegan Erdem
Summary: Janus particles have asymmetrical nature which make them superior to conventional particles. Microfluidic-based techniques are popular for their versatility and control over reaction conditions, leading to complex functionalities being imparted to the Janus particles.
INTERNATIONAL JOURNAL OF NANOMEDICINE
(2022)
Article
Chemistry, Multidisciplinary
Karnika Singh, Ankit Yadav, Prateek Dwivedi, Rahul Mangal
Summary: The study investigates the motion of active SiO2-Pt Janus particles in a complex environment of passive silica tracers, revealing significant impacts of collisions on the swimmers' motion. The frequency and nature of collisions determine the overall impact of tracers on the active particles, with high-density tracers leading to novel organizational behavior of tracers around the active particles.
Article
Multidisciplinary Sciences
Kevin Kaufmann, Hobson Lane, Xiao Liu, Kenneth S. Vecchio
Summary: Transfer learning can accelerate the training of deep learning models and improve performance with limited data. In this study, a few-shot transfer learning approach is used to classify electron backscatter diffraction pattern images, demonstrating its applicability for real-world phase identification and differentiation.
SCIENTIFIC REPORTS
(2021)
Article
Materials Science, Ceramics
B. Mironchuk, G. Abrosimova, S. Bozhko, E. Pershina, A. Aronin
Summary: The parameters of shear bands and their relationship with the nanocrystallization process in the Al87Ni8La5 amorphous alloy under deformation were investigated. It was found that an increase in deformation level led to an increase in surface roughness, step height, and the formation of Al nanocrystals.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Review
Chemistry, Multidisciplinary
Hui Zhang, Yufei Ma, Yijie Wang, Lin Niu, Rui Zou, Min Zhang, Hao Liu, Guy M. Genin, Ang Li, Feng Xu
Summary: This article reviews the soft-hard tissue interfaces found in the body and their application in bioinspired engineering materials. It also describes a range of manufacturing technologies related to interfacial tissue engineering, hydrogel bioadhesion, and healthcare and medical devices.
Article
Chemistry, Analytical
Yuxiang Zhao, Yabei Li, Shuake Kuermanbayi, Yulin Liu, Junjie Zhang, Zhaoyang Ye, Hui Guo, Kai Qu, Feng Xu, Fei Li
Summary: Ferroptosis, a promising therapeutic strategy for cancers, has attracted great interest. Monitoring the dynamic changes in key parameters during the early course of ferroptosis can provide insights for understanding the underlying mechanisms and developing targeted therapies.
ANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Biomedical
Yan Hu, Yuanbo Jia, Siwei Wang, Yufei Ma, Guoyou Huang, Tan Ding, Dayun Feng, Guy M. Genin, Zhao Wei, Feng Xu
Summary: Injectable hydrogels have the potential to promote healing of brain lesions, but current challenges arise from the mismatch between the hydrogel and the brain tissue. This study develops a self-healing hydrogel that mimics the composition, stiffness, and viscoelasticity of native brain tissue, and shows promising results in an in vivo mouse model of brain lesions.
ADVANCED HEALTHCARE MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yunzhang Li, Yimin Zhao, Xing Liu, Yinwei Qiu, Zhenglin He, Shengli Zhang, Haiping Fang, Liang Chen, Lei Zhang, Guosheng Shi
Summary: This study utilizes cryo-electron microscopy and X-ray photoelectron spectroscopy to discover a novel 2D Li2Cl crystal with metallic properties. A high content of Li2Cl is prepared in reduced graphene oxide (rGO) membranes through vacuum filtration, exhibiting high areal capacitance. Furthermore, the Li2Cl-rGO membranes also exhibit heterostructure property and piezoelectricity, making them useful as humidity sensors. These findings open up possibilities for fabricating novel high-performance electronic devices, transistors, and sensors.
ADVANCED MATERIALS INTERFACES
(2023)
Correction
Chemistry, Analytical
Zhaoyang Ye, Yabei Li, Yuxiang Zhao, Junjie Zhang, Tong Zhu, Feng Xu, Fei Li
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Zhaoyang Ye, Yabei Li, Yuxiang Zhao, Junjie Zhang, Tong Zhu, Feng Xu, Fei Li
Summary: This study constructed an in vitro cardiac tissue model and established a thermal-electric coupled theoretical model to simulate the electric field and temperature distributions around the cardiac tissue. Scanning electrochemical microscopy (SECM) was used to in situ and quantitatively monitor the dynamic changes in the key parameters of the cardiac tissue function after electric field stimulations. The results showed that the oxygen consumption, cell membrane permeability coefficient, and contraction frequency of the cardiac tissue were strongly dependent on electrical energy, especially when the electrical energy was higher than 0.001 J.
ANALYTICAL CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Yizhen Zhao, Yifan Zhao, Linke Xie, Qian Li, Yuze Zhang, Yongjian Zang, Xuhua Li, Lei Zhang, Zhiwei Yang
Summary: The global pandemic of SARS-CoV-2 is a pressing public health issue. This study models the structure and properties of the S protein in different states, identifies potential binding sites for ligands, and screens for bioactive compounds. Molecular dynamic simulations reveal that sulforaphane has the best binding affinity and can inhibit the conformational changes of the S protein during viral membrane fusion. These findings contribute to the understanding of S protein regulation and structure-activity relationship, facilitating the development of potential antiviral agents.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Biochemistry & Molecular Biology
Xiao-Lei Yu, Xin Meng, Yi-Di Yan, Jin-Cheng Han, Jia-Shan Li, Hui Wang, Lei Zhang
Summary: The naringin extraction process was optimized using response surface methodology and the purified naringin showed potential applications as a functional food for lowering blood lipid levels.
Article
Nanoscience & Nanotechnology
Jinbin Qiu, Zhijie Li, Keli An, Lele Niu, Haishui Huang, Feng Xu
Summary: This study constructed 3D culture models to investigate the thermal response of glioma cells under different hyperthermic temperatures. It was found that the high energy level of cells in 3D glioma spheres enables them to maintain cellular viability and respond promptly to thermal stimulation. Additionally, 3D glioma spheres exhibit strong drug resistance to thermo-chemical combination therapy.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Xinming Xia, Yingying Huang, Bingquan Peng, Tao Wang, Ruobing Yi, Yimin Zhao, Jie Jiang, Fangfang Dai, Yan Fan, Pei Li, Yusong Tu, Lei Zhang, Haiping Fang, Liang Chen
Summary: A high-yield synthesis method for 2D abnormal crystals with unconventional stoichiometries is reported, and the unique electronic, magnetic, and optical properties of these crystals are demonstrated. By applying a negative potential, a more than tenfold increase in abnormal Na2Cl crystals with higher sodium content is achieved in rGOM. The crystals exhibit a square structure and piezoelectric behavior.
ADVANCED MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Yizhen Zhao, Dongxiao Hao, Yifan Zhao, Shengli Zhang, Lei Zhang, Zhiwei Yang
Summary: This study compared the structural characteristics of authentic CETP and mutant CETP through molecular dynamics simulations, revealing that authentic CETP exhibits greater flexibility and curvature in lipid transport. A ligand identified through virtual screening and simulations was found to bind to the N- and C-termini of CETP, inducing structural changes unfavorable to lipid transport. This study sheds new light on the relationship between the structural and functional mechanisms of CETP and provides novel ideas for precise regulation of CETP functions.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Multidisciplinary Sciences
Jicheng Niu, Wenjing Liu, Jasmine Xinze Li, Xianglong Pang, Yulin Liu, Chao Zhang, Keyang Yue, Yulin Zhou, Feng Xu, Xiaoguang Li, Fei Li
Summary: The authors report a strategy for laser cutting machining of nanoparticle encased water pancakes with sub-millimeter depth. They verified and elucidated the process of nanoparticle-encased water pancake laser cutting and the parameters that affect cutting accuracy through theoretical analysis, numerical simulation, and experimental studies. Laser-fabricated water patterns with diverse properties were demonstrated and their applications in various fields were conceptually demonstrated.
NATURE COMMUNICATIONS
(2023)
Article
Computer Science, Information Systems
Bin Li, Wei Zhang, Hong Fu, Hao Liu, Feng Xu
Summary: This article proposes an end-to-end multi-level constrained spatiotemporal representation structure for facial video-based blood volume pulse (BVP) signal measurement. The structure strengthens the generation of BVP-related features and enhances BVP signal period pattern learning through global-local association. Experimental results show that the proposed structure outperforms state-of-the-art methods in BVP signal measurement with significant reductions in mean absolute error and root mean squared error. This structure has potential applications in telemedical and non-contact heart health monitoring.
IEEE JOURNAL OF BIOMEDICAL AND HEALTH INFORMATICS
(2023)
Article
Materials Science, Biomaterials
Songbai Zhang, Yuanbo Jia, Jingyi Liu, Fan Feng, Zhao Wei, Min Zhang, Feng Xu
Summary: Periodontitis can lead to irreversible defects in the periodontal ligament (PDL), hindering its regeneration and hampering the treatment of the disease. A promising approach for promoting PDL regeneration is the use of hydrogels that release anti-inflammatory drugs. However, current hydrogel systems do not mimic the viscoelastic features of native periodontium, which play an important role in tissue regeneration. This study developed a bi-crosslinking viscoelastic hydrogel (Alg-PBA/Spd) that integrates phenylboronic acid-modified alginate with an anti-inflammatory agent (spermidine) through crosslinking bonds, showing potential for promoting periodontal regeneration through mechanobiological synergy.
REGENERATIVE BIOMATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yulin Liu, Junjie Zhang, Yabei Li, Yuxiang Zhao, Shuake Kuermanbayi, Jian Zhuang, Hua Zhang, Feng Xu, Fei Li
Summary: This study constructed an in vitro mechanical-inflammatory coupled microenvironment model for microglia and demonstrated that lipopolysaccharide treatment induced activation of microglia on a stiff matrix, leading to disruption of redox balance and increased susceptibility to ROS production. The respiratory activity and migration behavior of microglia were closely associated with their activation process, with the most pronounced changes observed in stiff matrix-LPS-induced microglia. The findings provide valuable insights into the mechanisms underlying neuroinflammatory processes in the CNS.