Aqueous Supramolecular Polymers and Hydrogels

Spitzer, D.; Besenius, Pol

doi:10.1002/9783527814923.ch8

Cited by 5 publications

(1 citation statement)

References 173 publications

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“…The physical properties of water (polarity, solvation, hydrogen bonding) lead to important modifications of the recognition phenomena governed by effects that are absent in other solvents. Consequently, supramolecular chemistry in water is singular and often challenging . Supramolecular systems compatible with water , have attracted a lot of interest, − and several studies increased the water solubility of large aromatic groups, with the introduction of charges − or hydrophilic functions. − Nevertheless most studies relied on organic solvents such as methanol, ethanol, and DMSO to help solubilize and organize their systems and only few supramolecular assemblies have been investigated in saline aqueous media or in water only. − …”

Section: Introductionmentioning

confidence: 99%

Supramolecular Recognition of Phosphodiester-Based Donor and Acceptor Oligomers Forming Gels in Water

et al. 2023

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Inspired by automated DNA synthesis, electron-rich dialkoxynaphthalene (DAN) donor and electron-deficient naphthalene-tetracarboxylic diimide (NDI) acceptor phosphodiester-linked homohexamers were synthesized by the phosphoramidite method. Two types of hexamers were prepared, one with only one phosphodiester between the aromatics (i.e., DAN or NDI) and a second with two phosphodiesters around a propanediol between the aromatics, leading to the latter more flexible and more hydrophilic hexamers. The folding properties of these homohexamers alone or mixed together, in water only, were studied by UV–visible absorption spectroscopy and atomic force microscopy (AFM). AFM imaging revealed that a 1:1 mixture of hexaDAN and hexaNDI formed fibers by charge transfer donor–acceptor recognition leading to a hydrogel after drying. The organization of the resulting structures is strongly dependent on the nature of the complementary partner, leading to the formation of mono- or multilayer hydrogel networks with different compactness.

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Section: Introductionmentioning

confidence: 99%

Supramolecular Recognition of Phosphodiester-Based Donor and Acceptor Oligomers Forming Gels in Water

et al. 2023

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Chemically Fueled, Transient Supramolecular Polymers

Helm

Esch

Eelkema

2021

Out‐of‐Equilibrium (Supra)molecular Systems and Materials

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Amphiphilic Fluorescence Resonance Energy‐Transfer Dyes: Synthesis, Fluorescence, and Aggregation Behavior in Water

Dou

Wang

Zhang

2020

Chemistry A European J

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Amphiphilic pyrene/perylene bis‐chromophore dyes were synthesized from unsymmetrically substituted perylene bisimide dyes, which were obtained through three synthetic methods. The optical and aggregation behaviors of these functional dyes were studied by means of UV/Vis absorption and fluorescence spectroscopy, dynamic light scattering, and TEM. These dyes are highly fluorescent and cover the whole visible‐light region. A donor/acceptor dye displays intramolecular fluorescence resonance energy transfer (FRET), with a high efficiency of up to 96.4 % from pyrene to perylene bisimide chromophores, which leads to a high fluorescence color sensitivity to environmental polarity. Under a λ=365 nm UV lamp, the light‐emitting colors of the donor/acceptor dye change from green to yellow with increasing solvent polarity, which demonstrates application potential as a new class of FERT probes. The donor/acceptor dye in water was assembled into hollow vesicles with a narrow size distribution. The bilayer structure of the vesicular wall was directly observed by means of TEM. These vesicular aggregates in water are fluorescent at λ=650–850 nm within the near‐infrared region.

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Aqueous Supramolecular Polymers and Hydrogels

Cited by 5 publications

References 173 publications

Supramolecular Recognition of Phosphodiester-Based Donor and Acceptor Oligomers Forming Gels in Water

Supramolecular Recognition of Phosphodiester-Based Donor and Acceptor Oligomers Forming Gels in Water

Chemically Fueled, Transient Supramolecular Polymers

Amphiphilic Fluorescence Resonance Energy‐Transfer Dyes: Synthesis, Fluorescence, and Aggregation Behavior in Water

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