Article
Multidisciplinary Sciences
Tine Curk, Erik Luijten
Summary: The process of phase separation in elastic solids and viscous fluids is fundamental to the stability and function of soft materials. This study investigates the dynamics of phase separation and domain growth in viscoelastic materials, such as polymer gels, using analytical theory and Monte Carlo simulations. The results show that the domain size increases algebraically with a ripening exponent that depends on the viscoelastic properties of the material, and this behavior is different from the well-known Ostwald ripening process.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Materials Science, Multidisciplinary
Yanhui Dong, Dan Zhang, Daguang Li, Heng Jia, Weiping Qin
Summary: This study introduces the concepts of critical concentration and time window as the keys to inhibiting Ostwald ripening, and successfully achieves the controllable synthesis of high-quality nanocrystals through precise controls.
SCIENCE CHINA-MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Thao P. Doan-Nguyen, Shuai Jiang, Kaloian Koynov, Katharina Landfester, Daniel Crespy
Summary: The study introduces a novel method to synthesize ultrasmall nanocapsules with a diameter of 6 nm, demonstrating a core-shell structure formed by a sol-gel reaction and Ostwald ripening. Results indicate that the size of the nanocapsules depends on the ripening rate and alkoxysilane conversion rate.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Yuri Reyes, Shaghayegh Hamzehlou, Jose Ramon Leiza
Summary: The use of a mixture of costabilizers has been shown to enhance droplet stability in mini and nanoemulsions by preventing Ostwald ripening. Molecular dynamics simulations provide additional insights into the mechanisms behind this enhancement and allow the study of degradation under different conditions using a limited number of parameters. The retention of small costabilizer by the larger one is found to be the key factor contributing to the stability enhancement.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Lin Geng, Qiunan Liu, Jingzhao Chen, Peng Jia, Hongjun Ye, Jitong Yan, Liqiang Zhang, Yongfu Tang, Jianyu Huang
Summary: By conducting in situ observations of the early stage of electrochemical Na deposition, this research revealed an important electrochemical Ostwald ripening (EOR) phenomenon which dictates the early stage of Na deposition. Through two types of EOR, we gained a deeper understanding of the Na deposition mechanism.
Article
Geosciences, Multidisciplinary
R. Chen, Y. Chen, W. Xu, Y. Hu, L. Zhan, J. Li, D. Zhuang, K. Li
Summary: This study analyzes the influence of the hypergravity field on the Ostwald ripening process using two theoretical models. It is found that increasing the gravity acceleration can shorten the mass transfer time and scaled hypergravity models can replicate long-term and large-scale geological phenomena in a short period.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Shuai Wang, Fanyang Huang, Xinpeng Li, Wanxia Li, Yawei Chen, Xin Tang, Shuhong Jiao, Ruiguo Cao
Summary: The lithium-sulfur (Li-S) batteries have attracted attention for their high energy density and environmental benignity. This study investigated the role of temperature in regulating Li2S deposition and found that forming three-dimensional (3D) Li2S at high temperature effectively mitigates the passivation of the conductive matrix and significantly enhances the cell performance.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Samantha Francis, Alexandre Boucher, Glenn Jones, Alberto Roldan
Summary: In this study, the digestion and growth mechanism of gold clusters on MgO surface were investigated using ab-initio calculations and microkinetic simulations. A unique cluster trend and the temperature range of presence of single atoms on the surface were identified.
APPLIED SURFACE SCIENCE
(2022)
Article
Thermodynamics
Eugenya V. Makoveeva, Dmitri V. Alexandrov
Summary: This study focuses on the concluding stage of a phase transformation and examines the particle coagulation and Ostwald ripening processes. An exact solution to the non-stationary integrodifferential kinetic equation is derived, providing relationships between the particle-volume distribution function, time, number of particles, volume of the condensed phase, average particle radius, and liquid supersaturation. The study also compares the particle-volume distribution function and average radius of particles in cases of constant and averaged collision-frequency functions for different coagulation mechanisms, such as shear coagulation and coagulation under gravity.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Chemistry, Multidisciplinary
Mengyao Xu, Lin Liang, Jing Qi, Tianli Wu, Dan Zhou, Zhubing Xiao
Summary: The synthesis of Ti3C2Tx-CNTs hybrids without the addition of catalyst precursors allows for the uniform precipitation of catalysts and the formation of CNTs with high integrity on the surface of Ti3C2Tx, making them ideal 3D scaffolds for accommodating sulfur and regulating the polysulfides conversion in lithium-sulfur batteries.
Article
Chemistry, Multidisciplinary
Borna Zandkarimi, Patricia Poths, Anastassia N. Alexandrova
Summary: Size selection does not completely suppress Ostwald ripening of supported catalytic nanoparticles due to the presence of different geometric and electronic structures. A competing pathways theory has been proposed to describe the size-specific sintering behavior at the atomistic level.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Deepak Singh, Helmer Andre Friis, Espen Jettestuen, Johan Olav Helland
Summary: Through numerical experiments, we investigated the ripening process of nitrogen bubbles in homogeneous porous media containing decane and water, and found that their sizes depend on the surrounding liquid configuration and oil/water capillary pressure.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Natalia Michalak, Tomasz Ossowski, Zygmunt Milosz, Mauricio J. Prieto, Ying Wang, Miroslaw Werwinski, Visnja Babacic, Francesca Genuzio, Luca Vattuone, Adam Kiejna, Thomas Schmidt, Mikolaj Lewandowski
Summary: Ostwald ripening is a common physicochemical phenomenon where smaller particles dissolve and feed the bigger ones. This study provides evidence for Ostwald ripening occurring in an oxide-on-metal system, which is important for understanding heterogeneous catalysis.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Margarita A. A. Goldberg, Olga S. S. Antonova, Nadezhda O. O. Donskaya, Alexander S. S. Fomin, Fadis F. F. Murzakhanov, Marat R. R. Gafurov, Anatoliy A. A. Konovalov, Artem A. A. Kotyakov, Alexander V. V. Leonov, Sergey V. V. Smirnov, Tatiana O. O. Obolkina, Egor A. A. Kudryavtsev, Sergey M. M. Barinov, Vladimir S. S. Komlev
Summary: This research demonstrates the possibility of increasing the specific surface area, pore volume, and pore diameter of mesoporous hydroxyapatite (HA) materials by changing the synthesis medium and ripening the material in the mother solution. Various characterization techniques were used to analyze the HA powders, and the results showed significant changes in particle morphology and characteristics after ripening. The water-acetone sample exhibited the highest pore volume among all samples, reaching 0.593 cm(3)g(-1).
Article
Computer Science, Interdisciplinary Applications
Yashar Mehmani, Ke Xu
Summary: This article investigates the Ostwald ripening of trapped bubbles in porous media, which is relevant to subsurface and manufacturing applications. Through simulations and theoretical analysis, the article reveals the evolution process of the bubble size distribution from initially non-uniform to stable equilibrium, and finds that the equilibration of bubbles in heterogeneous porous media is slower than in homogeneous media.
JOURNAL OF COMPUTATIONAL PHYSICS
(2022)
Article
Geriatrics & Gerontology
Sarmad Al-Edresi, Izzeddin Alsalahat, Sally Freeman, Harmesh Aojula, Jeffrey Penny
NEUROBIOLOGY OF AGING
(2020)
Article
Pharmacology & Pharmacy
Sarmad S. Aledresi, Inas F. Abdulrazzaq, Abulfadhel J. Alshaibani
LATIN AMERICAN JOURNAL OF PHARMACY
(2020)
Article
Pharmacology & Pharmacy
Sarmad Sabah Aledresi, Abulfadhel Jaber Alshaibani, Ahmed Najim Abood
LATIN AMERICAN JOURNAL OF PHARMACY
(2020)
Article
Pharmacology & Pharmacy
Greta Camilla Magnano, Marika Quadri, Elisabetta Palazzo, Roberta Lotti, Francesca Loschi, Stefano Dall'Acqua, Michela Abrami, Francesca Larese Filon, Alessandra Marconi, Dritan Hasa
Summary: This study aimed to investigate the loading of sildenafil citrate in three commercial transdermal vehicles using 3D full-thickness skin equivalent and compare the results with permeability experiments using porcine skin. The results showed that the results obtained using the 3D skin equivalent were comparable to those obtained using porcine skin, suggesting that the 3D skin model can be a valid alternative for ex-vivo skin absorption experiments.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2024)
Article
Pharmacology & Pharmacy
James W. Mckeage, Andrew Z. H. Tan, Andrew J. Taberner
Summary: Needle-free jet injection is a promising alternative drug delivery technique that offers rapid, non-invasive, and large-volume injections. The study presents a prototype multi-orifice nozzle and a computational fluid dynamic model to demonstrate the feasibility and effectiveness of this technology.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2024)
