Article
Chemistry, Multidisciplinary
Oleh Vybornyi, Shi-Xia Liu, Robert Haener
Summary: The amphiphilic phosphodiester-linked azobenzene trimer can self-assemble into different supramolecular structures in aqueous medium and can be switched by photoirradiation. These findings offer new possibilities for the development of smart functional materials.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Review
Biochemistry & Molecular Biology
Zhixiong Liu, Xiaofang Zhao, Qingkai Chu, Yu Feng
Summary: Recently, there has been significant interest in stimuli-responsive supramolecular gels due to their ability to modulate properties through external stimuli. This review provides a systematic summary of research progress on stimuli-responsive supramolecular metallogels, including their application in material science and discussion of different types of stimuli-responsive metallogels. Challenges, suggestions, and opportunities for the development of novel stimuli-responsive metallogels are also presented.
Article
Polymer Science
Kwangmin Bae, Dong Geol Lee, Mohammed Iqbal Khazi, Jong-Man Kim
Summary: Metal-mediated self-assembly allows controlled construction of supramolecular architectures with diverse functionalities. By introducing a metal-binding nucleobase cytosine to a macrocyclic diacetylene, a Hg-coordinated unidirectional columnar self-assembly was generated, forming organic nanotubes. UV-induced covalent cross-linking of the monomeric CytMCDA-Hg with blue-phase macrocyclic polydiacetylene nanotubes resulted in a sensing response towards heat and solvents, as well as high sensitivity against thiols.
Review
Green & Sustainable Science & Technology
Chunqiang Jiang, Guohe Xu, Jianping Gao
Summary: This paper systematically reviews the progress of macromolecular self-assembly, including its conception, processes and mechanisms, with a focus on stimuli-responsive macromolecular self-assembly. Based on different stimuli, macromolecular self-assembly can be classified into different types. The problems and future development of macromolecular self-assembly research are also discussed.
Article
Chemistry, Physical
Bhargavi Bhat, Silabrata Pahari, Joseph Sang-Il Kwon, Mustafa E. S. Akbulut
Summary: Stimuli responsive viscosity modifiers are important materials that can form smart materials using stimuli such as pH, temperature, light, and salinity. They have been extensively used in biomedical, energy, and automobile industries, playing roles in tissue engineering, drug delivery, and enhanced oil recovery. This article provides an overview of different structures capable of viscosity modification and the rheological theory associated with classical systems. It also presents five primary mechanisms for stimuli responsive viscosity modification and explores examples from literature that utilize these concepts to create novel structures with intriguing rheological properties.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2023)
Review
Polymer Science
Ruben Van Lommel, Wim M. De Borggraeve, Frank De Proft, Mercedes Alonso
Summary: Supramolecular gels, a class of soft materials explored heavily in the past 20 years, have potential value in computational techniques that has been less emphasized. This review provides an overview of studies using computational tools to better understand the self-assembly behavior of supramolecular gels and accelerate their development through prediction. Future challenges in the field are discussed, along with how computational methods could help overcome them.
Review
Materials Science, Multidisciplinary
Liangchun Li, Rongqin Sun, Renlin Zheng, Yi Huang
Summary: This article discusses the design strategies, mechanisms, and future applications of anion-responsive supramolecular gels, emphasizing the need for more focus on in vivo applications in areas such as drug delivery and disease detection. Through analyzing the latest research summaries, the advantages and disadvantages of anion-responsive gels are explored.
MATERIALS & DESIGN
(2021)
Article
Chemistry, Multidisciplinary
Naohiro Kameta
Summary: Supramolecular nanotubes have unique structural features and can undergo morphological transformations in response to external stimuli, making them highly useful in various fields.
Article
Nanoscience & Nanotechnology
Hongyue Wang, Lin Wang, Shasha Guo, Zehao Liu, Luqing Zhao, Renzhong Qiao, Chao Li
Summary: An active flavonoid compound, rutin, was incorporated into a guanosine phenylborate hydrogel (GBR) for the treatment of inflammatory bowel disease (IBD). The hydrogel exhibited good stability and injectability, and achieved dual-responsive release in an acidic pH and excessive ROS-containing medium. In vivo studies showed that the GBR hydrogel had higher therapeutic efficacy than free rutin and could suppress the expression of inflammatory cytokines.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Benedikt P. Nowak, Maximilian Niehues, Bart Jan Ravoo
Summary: The study reports a peptide-based gelator, Nap GFYE, that can form hydrogels and incorporate Fe3O4 superparamagnetic nanoparticles to create a hybrid gel that transitions from a gel to sol state upon application of a weak magnetic field. The magnetic nanoparticles act as crosslinkers for the self-assembled peptide nanostructures, enhancing the mechanical properties of the gel and enabling on-demand release of a fluorescent dye.
Article
Chemistry, Multidisciplinary
Adrien Bessaguet, Quentin Blancart-Remaury, Pauline Poinot, Isabelle Opalinski, Sebastien Papot
Summary: Rotaxanes and molecular knots have unique properties due to the presence of a mechanical bond that interlocks the molecular components permanently. The disassembly of the interlocked structure can activate properties that are concealed in the parent compound. This study presents the development of stimuli-responsive Cu-I-complexed [2]catenanes as OFF/ON catalysts for the copper-catalyzed alkyne-azide cycloaddition (CuAAC) reaction.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Zaoming Wang, Gavin A. Craig, Alexandre Legrand, Frederik Haase, Saori Minami, Kenji Urayama, Shuhei Furukawa
Summary: Introduction of porosity into supramolecular gels endows soft materials with functionalities for molecular encapsulation, release, separation and conversion. Most of the materials can only be synthesized in organic solvents, and the examples of porous, MOP-based hydrogels are scarce. Gas sorption measurements confirmed the permanent porosity of the corresponding aerogels obtained from these MOP-based hydrogels, showing potentials for applications in gas sorption and catalysis.
CHEMISTRY-AN ASIAN JOURNAL
(2021)
Article
Chemistry, Physical
HuaJie Yu, Xiujie Chang, Qiuhong Li, Xia Sun, Aixiang Li, Zhengliang Zhang, Wenlei Zhao
Summary: A fluorescent functional material with dual responsiveness was prepared by combining different materials at the oil-water interface to form self-assembled structures, exhibiting multiple stimuli-response behaviors. This self-assembled fluorescent probe can be used for detecting Cu2+ and offers a new strategy for environmental monitoring.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Review
Chemistry, Multidisciplinary
Dongxue Han, Jie Wang, Teng Zheng, Liang Peng, Tifeng Jiao
Summary: In recent years, there has been strong interest in circularly polarized luminescent (CPL) materials due to their promising applications in various research fields. The development of stimuli-responsive CPL-active materials, which incorporate chiral groups and responsive luminescent components, has gained significant attention. The review provides an overview of the advancements in stimuli-responsive multicomponent co-assembled systems, particularly in the presence of gels and chiral nematic liquid crystals, and highlights future challenges and opportunities.
CELL REPORTS PHYSICAL SCIENCE
(2023)
Article
Polymer Science
Sreejith Sudhakaran Jayabhavan, Baldur Kristinsson, Dipankar Ghosh, Charlene Breton, Krishna K. K. Damodaran
Summary: The nature of functional groups and their relative position and orientation play an important role in tuning the gelation properties of stimuli-responsive supramolecular gels. In this work, mono-/bis-pyridyl-N-oxide compounds of N-(4-pyridyl)nicotinamide (L-1-L-3) were synthesized and characterized. The gelation properties of these N-oxide compounds were compared with isomeric counterparts of N-(4-pyridyl)isonicotinamide.