Article
Polymer Science
Rang Chen, Xue Jiang, Guolin Lu, Wenbin Liu, Weize Jin, Guojian Tian, Xiaoyu Huang
Summary: Graft copolymers have versatile applications in material science due to their tunable structure and diverse morphologies. This study successfully synthesized amphiphilic graft copolymers bearing pyridine-containing hydrophilic backbones, which exhibited dual temperature- and pH-sensitive behavior, suggesting their potential as polymer-drug nanocarriers.
Article
Polymer Science
Daniela de Morais Zanata, Maria Isabel Felisberti
Summary: A series of thermo- and pH-responsive triblock copolymers were synthesized and their phase behavior was comprehensively studied. The copolymers exhibited self-assembly into different aggregates depending on pH and temperature conditions.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Nicolo Manfredini, Manuel Merigo, Juri Ilare, Mattia Sponchioni, Davide Moscatelli
Summary: In this work, stable limonene-in-water Pickering emulsions were successfully produced by synthesizing biodegradable nanoparticles through a combination of polymerization techniques. The size of the oil phase and wetting properties of limonene could be strictly controlled by tuning the physico-chemical properties of the nanoparticles. The adoption of thermo-responsive polymer chains within the emulsifiers allowed on-demand destabilization of the emulsions for selective dispensing of limonene by increasing the temperature.
Article
Polymer Science
Lu Lian, Jiaman Hu, Yong Lin, Youliang Zhao
Summary: The rational design of architecture-transformable polymers can optimize their physicochemical properties. In this study, a couplable and self-immolative ATRP initiator was used for one-shot copolymerization, resulting in polymers with different block numbers and connection modes. The incorporation of anthracene dimerization and thiolactone groups enabled the construction of graft copolymers with complex structures. Heating the polymers resulted in the cleavage of anthracene dimers and ester groups, generating mixtures of polymers with different block compositions. This approach provides a promising platform for achieving a wide range of complex macromolecular architectures through topological transformation.
Article
Polymer Science
Lu Lian, Jiaman Hu, Yong Lin, Youliang Zhao
Summary: The rational design and synthesis of architecture-transformable polymers allows for the optimization of physicochemical properties. Through a cascade synthesis involving multiple steps, diverse macromolecular architectures can be achieved. These polymers have tunable compositions and functions and serve as a promising platform for the generation of complex macromolecular structures.
Article
Chemistry, Applied
Lakshmi Priya Datta, Triparna Mukherjee, Tapan Kumar Das
Summary: The rampant use of antibiotics and emergence of zoonotic diseases have led to serious global health hazards. Fungal infections, particularly those caused by Aspergillus species, are challenging due to their eukaryotic nature. Researchers have developed pH responsive cationic biocompatible polymers based on amino acids inspired by antimicrobial peptides, which have demonstrated effective fungicidal activities against Aspergillus niger. The mechanism of action involves inhibition of hyphal growth and distortion of conidiophores, with the aqueous solution properties of the side chain groups of individual amino acids significantly influencing the fungicidal activities.
REACTIVE & FUNCTIONAL POLYMERS
(2021)
Article
Chemistry, Physical
Keran Li, Hui Dai, Jing Li, Qin Zhang, Bin Wang
Summary: In this study, a controllable and efficient method for preparing dual-stimulus-responsive magnetic nanospheres as particle emulsifiers was described. The nanospheres showed pH and magnetic responsiveness, and the emulsion stability could be controlled by changing pH value or applying an external magnetic field. The stability and destabilization of the emulsion were influenced by factors such as polymer segment length, particle concentration, water-oil ratio, and oil phase polarity. This research provides opportunities for applications in oily wastewater treatment, water-oil separation, and crude oil delivery systems.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Polymer Science
Dimitrios Selianitis, Stergios Pispas
Summary: This work introduces a series of novel multi-responsive hyperbranched copolymers which self-organize in aqueous media. The copolymers, prepared by RAFT polymerization, exhibit responsiveness to changes in solution temperature and pH, and are able to encapsulate hydrophobic drugs like curcumin. These hyperbranched copolymers show potential as candidates for drug delivery and bio-imaging applications, as they demonstrate stability in the presence of serum proteins.
Article
Materials Science, Multidisciplinary
Nicolo Manfredini, Mattia Sponchioni, Davide Moscatelli
Summary: Thermo-responsive polymeric surfactants were synthesized to promote NP formation during eFRP and facilitate bulk polymer recovery by increasing temperature.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Polymer Science
Arman Moini Jazani, Jung Kwon Oh
Summary: A new method for synthesizing multi-stimuli-responsive degradable block copolymers is reported in this study. The copolymer can achieve controlled, sustained, or rapid drug release through different stimuli (acid, reduction, light).
Article
Polymer Science
Nicolo Manfredini, Marco Tomasoni, Mattia Sponchioni, Davide Moscatelli
Summary: Thermo-responsive nanoparticles are receiving attention for their dynamic behavior and wide range of applications. This study synthesized nanoparticles with varying properties and found that longer polymer chain blocks favor gel formation, while high HLB promotes reversibility.
Article
Polymer Science
Jiasheng Pan, Xin Wen, Mu Wang, Jun Li, Xiangyu Li, Anchao Feng, Liqun Zhang, San H. Thang
Summary: This study successfully constructed a novel stimuli-responsive microgel by introducing complementary interactions between natural nucleobases, and demonstrated shrinkage and assembly behavior under different water content and thermo pH-stimulated conditions.
MACROMOLECULAR RAPID COMMUNICATIONS
(2022)
Article
Polymer Science
Panagiotis G. Falireas, Vincent Ladmiral, Bruno Ameduri
Summary: Fluorinated dual-responsive block terpolymers were synthesized via sequential RAFT polymerization, exhibiting unique solution properties that respond to changes in pH and temperature.
Article
Polymer Science
Hang Xiao, Quan-Xi Shi, Min Su, Xiao-Li Sun, Hongli Bao, Wen-Ming Wan
Summary: This study demonstrates a one-pot strategy for the molecular design of stimuli-responsive opposite emission/absorption polymer material with unique properties. The nontraditional intrinsic luminescence in the visible region is achieved through reversible addition-fragmentation chain transfer polymerization-induced emission (PIE) of a specific moiety. The opposite emission/absorption properties are derived from the carbocation-quinoid mechanism, enabling fluorescence encryption capability. This work provides a proof of concept for a novel polymer material that might inspire different fields.
Article
Pharmacology & Pharmacy
Fen Zhang, Qian Yao, Xiaoqi Chen, Haijun Zhou, Mengmeng Zhou, Yantao Li, Hua Cheng
Summary: The post-encapsulation and release of the anticancer drug doxorubicin hydrochloride (DOX·HCl) through the cell-like transmission functions of polymeric vesicles were investigated. Ethylenediamine-modified cross-linked pH-responsive polymeric vesicles were fabricated for the first time using redox-initiated reversible addition-fragmentation chain transfer dispersion polymerization. The vesicles showed a pH-dependent open and closed state, and exhibited a faster release rate of DOX at pH 5.0 compared to pH 6.5. The DOX-loaded vesicles had low cytotoxicity and higher cellular uptake capability compared to free DOX.
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)