Article
Chemistry, Multidisciplinary
Jacopo Vialetto, Fabrizio Camerin, Shivaprakash N. Ramakrishna, Emanuela Zaccarelli, Lucio Isa
Summary: The encapsulation of a rigid core within a soft polymeric shell allows obtaining composite colloidal particles with retained functional properties. The authors investigated the interfacial morphology of these particles and identified that the core properties, shell thicknesses, and grafting density can influence their conformation. By understanding their wetting behavior, these composite particles can be designed to exhibit specific inter-particle interactions for the stabilization of interfaces and the fabrication of tailored 2D materials with functional properties.
Article
Polymer Science
Aleksey D. Drozdov, Jesper deClaville Christiansen
Summary: The increase in elastic modulus is associated with aggregation of hydrophobic segments into clusters, forming extra physical bonds between chains. Microgels exhibit higher elastic moduli but lower degrees of swelling in stress-free state compared with macroscopic gels.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Anne C. Nickel, Andrey A. Rudov, Igor I. Potemkin, Jerome J. Crassous, Walter Richtering
Summary: This study compares the interfacial deformation and assembly of anisotropic core-shell and hollow microgels and highlights the importance of microgel shape and stiffness on their behavior at the interface.
Article
Polymer Science
Keumkyung Kuk, Lukas Gregel, Vahan Abgarjan, Caspar Croonenbrock, Sebastian Haensch, Matthias Karg
Summary: This paper reports on a one-pot synthesis protocol for micron-sized silica-poly(N-isopropylacrylamide) core-shell microgels and demonstrates excellent control over the shell-to-core ratio. The experimental results show that the synthesized microgels are monodisperse and suitable for optical investigations even at high packing fractions.
Article
Chemistry, Multidisciplinary
Minghang Qiao, Yi Xing, Lei Xie, Biao Kong, Freddy Kleitz, Xiaoyu Li, Xin Du
Summary: This paper presents a temperature-controlled swelling approach for facile synthesis of functional yolk@shell structured nanospheres with tunable inner core and mesoporous shell. The method shows great potential for wide applications in biology and medicine.
Article
Chemistry, Multidisciplinary
Bastian Haehnle, Philipp A. Schuster, Lisa Chen, Alexander J. C. Kuehne
Summary: A synthetic toolbox has been developed to create monodisperse core-shell and core-shell-shell particles composed entirely of different types of conjugated polymers. Seeded and fed-batch dispersion polymerizations based on Suzuki-Miyaura-type cross-coupling allow precise control over the interface between conjugated polymer phases, facilitating control over energy transfer phenomena. This new approach offers synthetic freedom for fine-tuning the optical properties of CPP, potentially enabling the synthesis of individual white light-emitting particles.
Article
Multidisciplinary Sciences
Johannes Menath, Jack Eatson, Robert Brilmayer, Annette Andrieu-Brunsen, D. Martin A. Buzza, Nicolas Vogel
Summary: Researchers have successfully designed two-dimensional assemblies with structural complexity by utilizing the distinct interfacial morphology of soft particles. They found that core-shell particles can form complex chain and cluster structures under interfacial compression. Through a combination of experimental, simulation, and theoretical analysis, the interaction parameter of the system was narrowed down to between 0.9 and 2.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Chemistry, Multidisciplinary
Merin Jose, Muruga Lokesh, Rahul Vaippully, Dillip K. Satapathy, Basudev Roy
Summary: The study investigates the direction-resolved viscoelastic properties of particle-laden interfaces using optical tweezers and birefringent probe particles. The results show that the modes orthogonal to the interface and the rotational mode also exhibit a viscous to viscoelastic transition, but with lower viscoelasticity compared to the in-plane mode.
Review
Materials Science, Ceramics
Camilla Berg, Le Fu, Yihong Liu, Hakan Engqvist, Wei Xia
Summary: Hollow microstructured-and nanostructured-materials, also known as core-shell particles, have attracted great attention for their fascinating physicochemical properties and potential applications. Various synthesis strategies have been explored to fabricate these particles with different morphologies, compositions, and microstructures. Soft-templating with nanobubbles has emerged as a feasible and effective method, leading to the preparation of inorganic core-shell particles. However, a comprehensive review of this field is still lacking. This paper provides a review of the formation methods, stability, and stabilization strategies of nanobubbles, as well as the characteristics and formation mechanisms of core-shell particles prepared using nanobubble soft templates. The concerns regarding nanobubbles as soft templates are also briefly discussed.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Nabila Yasmeen, Jakub Kalecki, Pawel Borowicz, Wlodzimierz Kutner, Piyush S. Sharma
Summary: In this study, a simple method was developed to synthesize micrometer-sized microgel particles that can be suspended in an aqueous solution and deposited as thin films on different inorganic cores. Through applying a sufficiently high constant potential and hydrodynamic conditions, different morphologies of microgels could be prepared at room temperature without the need for heating or UV-light illumination. These findings are significant for the fabrication of microgel particles and films with diverse morphology and structure.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Polymer Science
Marco Hildebrandt, Sergey Lazarev, Javier Perez, Ivan A. Vartanyants, Janne-Mieke Meijer, Matthias Karg
Summary: In this study, small-angle X-ray scattering (SAXS) was used to investigate soft microgels with thermoresponsive shells and gold nanoparticle cores. The scattering contrast of the gold cores allowed precise determination of the microgel volume fraction, and the structure factor was extracted to characterize the phases using UV-vis spectroscopy. This research provides new ways to explore dense packings of soft microgels, including in situ studies of phase transitions.
Article
Chemistry, Physical
Merin Jose, Muraleedharapai Mayarani, Madivala G. Basavaraj, Dillip K. Satapathy
Summary: Experimental studies have shown that binary mixtures of soft colloids in monolayer deposits exhibit good ordering properties, regardless of the size difference or mixing ratio of the particles. The unique characteristics of soft colloids allow them to deform at the interface to preserve the crystalline lattice structure.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Physics, Fluids & Plasmas
Lara Frenzel, Michael Dartsch, Gerard Marti Balaguer, Fabian Westermeier, Gerhard Gruebel, Felix Lehmkuehler
Summary: The structure and dynamics of colloidal particles with a hard core and a thermo-responsive shell were studied using small-angle x-ray scattering and x-ray photon correlation spectroscopy. Different phases such as liquid, repulsive glass, and attractive gel were observed. Dynamics slowed down with increasing volume fraction in the liquid phase and a gel-glass transition was observed at an effective volume fraction of 34 vol.%.
Article
Physics, Multidisciplinary
Trevor J. Jones, Thomas Dupuis, Etienne Jambon-Puillet, Joel Marthelot, P. -t. Brun
Summary: This study investigates the physics of soft deployable structures using core-shell inflatables and proposes a strategy for synchronized deployment. Complex network structures are modeled to demonstrate the ability to reconfigure their final shape. Furthermore, the method is extended to assemble complex three-dimensional structures. These results utilize material and geometric nonlinearities to provide a low-energy pathway for growth and reconfiguration of soft deployable structures.
PHYSICAL REVIEW LETTERS
(2023)
Article
Biochemistry & Molecular Biology
Venkatesha Narayanaswamy, Jayalakshmi Jagal, Hafsa Khurshid, Imaddin A. A. Al-Omari, Mohamed Haider, Alexander S. S. Kamzin, Ihab M. M. Obaidat, Bashar Issa
Summary: Magnetically soft-soft MnFe2O4-Fe3O4 core-shell nanoparticles were synthesized and their magnetic and thermal properties were studied. The results showed that the shell thickness had no significant effect on the magnetic properties, while the interface spin freezing between the shell and core played an important role. These nanoparticles have potential applications in cancer treatment.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Physical
Panpan Zhang, Xu Wang, Yangyang Yang, Haifeng Yang, Chunsheng Lu, Mingru Su, Yu Zhou, Aichun Dou, Xiaowei Li, Xiaochuan Hou, Yunjian Liu
Summary: In this study, the influence of transition metal doping on the electronic and mechanical properties and electrochemical performance of 2HMoS2/NC was investigated using Cobalt (Co) as an example. Co doping was found to effectively improve the electronic conductivity and active site areas of 2H-MoS2/NC at different positions, optimizing the adsorption and diffusion capability of potassium ions. Furthermore, the study revealed the optimal roles of different types of nitrogen atoms in kinetic adsorption, diffusion, and interfacial stability of potassium ions. These findings provide guidance for the experimental design of high rate 2H-MoS2/NC electrode materials and the optimal design of other functional composite materials.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zeeshan Ajmal, Mahmood Ul Haq, Shahid Zaman, M. K. Al-Muhanna, Anuj Kumar, Mohammed M. Fadhali, Siwar Ben Hadj Hassine, Muhammas Qasim, K. F. Alshammari, Ghulam Abbas Ashraf, Abdul Qadeer, Adil Murtaza, Sulaiman Al-Sulaimi, Huaqiang Zeng
Summary: This study presents a novel heterojunction structure (SrTiO3/CN-TAL10.0) for enhanced photocatalytic water splitting (PWS). The incorporation of thiophenedicarboxaldehyde (TAL) through copolymerization significantly improves the photocatalytic activity of carbon nitride (CN) while maintaining its photostability performance. The optimized composition allows efficient isolation of photoinduced charge carriers and enhanced charge transport, resulting in a remarkable increase in overall photocatalytic efficiency.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Angela Arnosa-Prieto, Patricia Diaz-Rodriguez, Manuel A. Gonzalez-Gomez, Pelayo Garcia-Acevedo, Lisandra de Castro-Alves, Yolanda Pineiro, Jose Rivas
Summary: Macrophages can exhibit different phenotypes depending on the microenvironment and the characteristics of magnetic iron oxide nanoparticles (MNPs). This study demonstrates that the concentration and morphology of MNPs can influence the polarization of macrophages. The findings have implications for therapeutics targeting tissue regeneration and tumor progression.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yu Fang, Cheng-Ye Zhu, Hao-Cheng Yang, Chao Zhang, Zhi-Kang Xu
Summary: This study demonstrates the advantages of vacuum-assisted interfacial polymerization (VAIP) in fabricating polyimide nanofiltration membranes. By using vacuum filtration, aqueous solutions of PIP can be evenly distributed on different microfiltration substrates, leading to the fabrication of uniform and ultra-thin polyamide layers with excellent performance. The membranes exhibit high rejection rates and water permeance, as well as satisfactory long-term stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Isaac J. Gresham, Edwin C. Johnson, Hayden Robertson, Joshua D. Willott, Grant B. Webber, Erica J. Wanless, Andrew R. J. Nelson, Stuart W. Prescott
Summary: Understanding the interactions between polymers and surfactants is crucial for optimizing commercial systems. This study tested the behavior of polymer-surfactant systems, revealing that they do not behave like polyelectrolytes in the presence of salt. Additionally, the structure of polymer-surfactant complexes under confinement differs from that of polyelectrolytes.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yunxiao Xie, Cui Liu, Jie Zhang, Yan Li, Bin Li, Shilin Liu
Summary: This study aimed to improve the microstructure and rheological properties of W/W Pickering emulsions by crosslinking sodium alginate at the water-water interface, thereby enhancing the activity of encapsulated probiotics in simulated gastrointestinal digestion.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Sang Ho Lee, Yige Sun, Patrick S. Grant
Summary: This research developed an effective approach to enhance the charging rates of lithium ion batteries (LIBs) by strategically incorporating carbon nanotube (CNT) conductivity boosters into Li4Ti5O12 (LTO) electrodes. Multi-layer architectures comprising CNT-rich and CNT-free LTO electrode layers were manufactured using a layer-by-layer spray coating method to promote charge transfer kinetics of high mass loading electrodes. The best performing multi-layer was paired with a spray-coated LiFePO4 (LFP) positive electrode, resulting in attractive power performance that outperformed conventional LTO || LFP combinations.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jingwei Liang, Shaobin Li, Fengbo Li, Li Zhang, Yufeng Jiang, Huiyuan Ma, Kun Cheng, Liang Qing
Summary: A molybdenum-regulated self-supporting electrode material with rich vacancy defects has been successfully synthesized and shows exceptional catalytic activities and stability for electrocatalytic overall water splitting. This study provides a new perspective for the design and synthesis of non-precious metal bifunctional electrocatalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jonas Blahnik, Jennifer Schuster, Rainer Mueller, Eva Mueller, Werner Kunz
Summary: This study investigates the relationship between the morphology of PMMA monopolymers and PMMA-PHEMA copolymers with the expected nature of surfactant-free microemulsions (SFMEs) before polymerization. It is found that previously mesostructured, surfactant-free mixtures can produce porous polymers of different morphologies, while unstructured, oil-rich regions lead to solid, transparent polymers without nanostructured morphologies. Additionally, a surfactant-based reference system shows similar phase behavior and polymer morphologies as the comparable surfactant-free system, indicating the importance of the hydrotropic behavior of HEMA in this system.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zheng-Fen Pu, Wen-Zhi She, Rong Sheng Li, Qiu-Lin Wen, Bi-Chao Wu, Chun-Hua Li, Jian Ling, Qiue Cao
Summary: This study synthesized two framework-isomeric covalent organic frameworks (COFs) and discovered that the light scattering signal of COFs can be used for the analytical detection of lead ions. By controlling synthesis conditions and introducing regulators, the morphology of COFs could be controlled and framework-isomeric COFs could be precisely synthesized.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yuchen Weng, Ying Hong, Jingyu Deng, Sicheng Cao, Li-Juan Fan
Summary: This paper reports the preparation of dynamic color-changing fluorescent polymer nanoparticles (PNPs) by constructing a fluorescence resonance energy transfer (FRET) pair. The PNPs show excellent anti-counterfeiting effects and reproducibility. The study demonstrates a promising encryption strategy that can achieve multiple outputs with simple operation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Guodong Liu, Zijian Wang, Jianing Wang, Hanbin Liu, Zhijian Li
Summary: This study investigates the combination of multicolor switchable polyaniline (PANI) electrode and 1-methyl-4,4'-bipyridyl iodide (MBI), which demonstrates superior optical properties in visible and near-infrared light modulation, as well as excellent electrochemical performances. This combination can be used to develop novel electrochromic devices for applications in smart packaging, smart labels, and flexible smart windows.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Huying Yan, Yang Guo, Xingzhi Bai, Jiawei Qi, Haipeng Lu
Summary: By modifying Ti3C2Tx through heterogeneous interface engineering, optimized impedance matching is achieved, leading to enhanced electromagnetic wave absorption performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Kehu Zhang, Yang Zhou, Silvia Moreno, Simona Schwarz, Susanne Boye, Brigitte Voit, Dietmar Appelhans
Summary: This article presents an advanced crosslinking strategy to fabricate clustered polymersomes using host-guest interactions. By controlling the input of crosslinker and environmental conditions, reversible aggregation and disassembly of these polymersomes can be achieved. The size and structure of these clustered polymersomes can be regulated and visualized through a fluorescent enzymatic cascade reaction.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Junjie Xu, Weixiong Huang, Ruiling Li, Li Li, Jinjin Ma, Jiaou Qi, Haiyan Ma, Min Ruan, Lilin Lu
Summary: In this study, a potassium doped palladium catalyst was developed for acetylene hydrogenation, showing excellent catalytic performance and durability. The doping of potassium effectively weakened the adsorption of ethylene, improved ethylene selectivity, and lowered the barriers of hydrogen activation and transfer reactions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)