Supramolecular Systems

Moraes, Marli L.; Caseli, Luciano

doi:10.1016/b978-0-323-49782-4.00002-4

Cited by 3 publications

(3 citation statements)

References 29 publications

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“…A supramolecular system is a molecular assembly organized through intermolecular interactions that can be ionic or covalent, 57 including hydrogen bonds, metallic coordination, hydrophobic interactions, van der Waals forces, and ionic interactions. The chemistry of supramolecules has been described as “chemistry beyond the molecule.” Thus, a group of molecular components that contribute properties that each component possesses individually to the whole assembly (covalent or noncovalent) can be expected to be supramolecular compounds, which have been used in supramolecular photochemistry 58 .…”

Section: Main Contentsmentioning

confidence: 99%

Section: Photoresponsive Supramolecular Systemsmentioning

confidence: 99%

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Visible‐light‐switchable azobenzenes: Molecular design, supramolecular systems, and applications

et al. 2022

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Photocontrol of functional molecules and supramolecular systems provides promising directions for the development of innovative materials and technologies.Reversible photoswitches that can isomerize among different states play a vital role in such photoresponsive systems. However, the commonly used UV light for triggering the isomerization of photoswitches such as azobenzene (AB) has limited their applications in functional material systems because UV light penetrates poorly and causes damage to materials or biological tissues. Accordingly, tremendous endeavors have been devoted to the development of visible-light-switchable molecules and expand their new applications in various fields. Herein, we highlight the strategies of molecule design for visible-light-switchable ABs by discussing the effects of benzene substituents on the absorption spectrum. Based on this, visible-light-responsive supramolecular systems with metal-organic frames, cyclodextrins, nanoparticles, and biomolecules (DNAs, peptides, and proteins) are elaborated. Then, the light-responsive mechanical properties and their emerging applications in actuators, biological systems, information storage, energy storage, nonlinear optical devices, and photoswitchable adhesives are discussed. Finally, a summary of the challenges and perspective on visible-light-switchable ABs are outlined.

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Section: Main Contentsmentioning

confidence: 99%

Section: Photoresponsive Supramolecular Systemsmentioning

confidence: 99%

Visible‐light‐switchable azobenzenes: Molecular design, supramolecular systems, and applications

et al. 2022

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“…Indeed, when the lipids are initially re-dissolved in water, depending on their composition, they often tend to form multilamellar vesicles with a broad size distribution. Sonication of the vesicle suspension breaks the multilamellar vesicles, which rapidly reassemble into unilamellar vesicles with a more homogeneous size distribution [ 40 ]. Extrusion through a polycarbonate membrane also induces temporary rupture of the lipid vesicles and reassembling in unilamellar vesicles [ 39 ].…”

Section: Design Of Biomimetic Lipid Membranesmentioning

confidence: 99%

Mimicking the Mammalian Plasma Membrane: An Overview of Lipid Membrane Models for Biophysical Studies

Luchini

Vitiello

2020

Biomimetics

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Cell membranes are very complex biological systems including a large variety of lipids and proteins. Therefore, they are difficult to extract and directly investigate with biophysical methods. For many decades, the characterization of simpler biomimetic lipid membranes, which contain only a few lipid species, provided important physico-chemical information on the most abundant lipid species in cell membranes. These studies described physical and chemical properties that are most likely similar to those of real cell membranes. Indeed, biomimetic lipid membranes can be easily prepared in the lab and are compatible with multiple biophysical techniques. Lipid phase transitions, the bilayer structure, the impact of cholesterol on the structure and dynamics of lipid bilayers, and the selective recognition of target lipids by proteins, peptides, and drugs are all examples of the detailed information about cell membranes obtained by the investigation of biomimetic lipid membranes. This review focuses specifically on the advances that were achieved during the last decade in the field of biomimetic lipid membranes mimicking the mammalian plasma membrane. In particular, we provide a description of the most common types of lipid membrane models used for biophysical characterization, i.e., lipid membranes in solution and on surfaces, as well as recent examples of their applications for the investigation of protein-lipid and drug-lipid interactions. Altogether, promising directions for future developments of biomimetic lipid membranes are the further implementation of natural lipid mixtures for the development of more biologically relevant lipid membranes, as well as the development of sample preparation protocols that enable the incorporation of membrane proteins in the biomimetic lipid membranes.

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Stimuli-Responsive Zinc (II) Coordination Polymers: A Novel Platform for Supramolecular Chromic Smart Tools

2021

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The unique role of the zinc (II) cation prompted us to cut a cross-section of the large and complex topic of the stimuli-responsive coordination polymers (CPs). Due to its flexible coordination environment and geometries, easiness of coordination–decoordination equilibria, “optically innocent” ability to “clip” the ligands in emissive architectures, non-toxicity and sustainability, the zinc (II) cation is a good candidate for building supramolecular smart tools. The review summarizes the recent achievements of zinc-based CPs as stimuli-responsive materials able to provide a chromic response. An overview of the past five years has been organised, encompassing 1, 2 and 3D responsive zinc-based CPs; specifically zinc-based metallorganic frameworks and zinc-based nanosized polymeric probes. The most relevant examples were collected following a consequential and progressive approach, referring to the structure–responsiveness relationship, the sensing mechanisms, the analytes and/or parameters detected. Finally, applications of highly bioengineered Zn-CPs for advanced imaging technique have been discussed.

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Supramolecular Systems

Cited by 3 publications

References 29 publications

Visible‐light‐switchable azobenzenes: Molecular design, supramolecular systems, and applications

Visible‐light‐switchable azobenzenes: Molecular design, supramolecular systems, and applications

Mimicking the Mammalian Plasma Membrane: An Overview of Lipid Membrane Models for Biophysical Studies

Stimuli-Responsive Zinc (II) Coordination Polymers: A Novel Platform for Supramolecular Chromic Smart Tools

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