Amphiphilic polymers for aggregation-induced emission at air/liquid interfaces

Argudo, Pablo G.; Zhang, Nian; Chen, Hui; Miguel, Gustavo de; Martín‐Romero, María T.; Camacho, Luis; Li, Min-Hui; Giner‐Casares, Juan J.

doi:10.1016/j.jcis.2021.03.049

Cited by 14 publications

(4 citation statements)

References 54 publications

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“…56−58 The behavior of amphiphilic polymers bearing AIE-exhibiting tetraphenylethylene residues at air−water interfaces was also investigated. 59 These works serve as a proof of concept, encouraging further research focused on broadening molecular precursors and gaining a deeper understanding of the structural features of LB films formed by unusual molecular precursors.…”

Section: ■ Introductionmentioning

confidence: 94%

“…The development of AIE-emitting Langmuir monolayers and LB films is based on the use of specific compounds without long alkyl chains, although this structural residue is commonly required for the stabilization of the monolayers. To the best of our knowledge, AIE-active films prepared by the LB method have been exclusively obtained from cyclometalated Ir(III) complexes and tetraphenylethene derivatives. − The behavior of amphiphilic polymers bearing AIE-exhibiting tetraphenylethylene residues at air–water interfaces was also investigated . These works serve as a proof of concept, encouraging further research focused on broadening molecular precursors and gaining a deeper understanding of the structural features of LB films formed by unusual molecular precursors.…”

Section: Introductionmentioning

confidence: 99%

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Preparation of Langmuir–Blodgett Films from Quinoxalines Exhibiting Aggregation-Induced Emission and Their Acidochromism

Ermakova,

Zvyagina,

Kharlamova

et al. 2024

Langmuir

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The development of aggregation-induced emission (AIE)-exhibiting compounds heavily relies on our evolving comprehension of their behavior at interfaces, an understanding that still remains notably limited. In this study, we explored the preparation of two-dimensional (2D) sensing films from 2,3-diphenylquinoxaline-based diazapolyoxa-and polyazamacrocycles displaying AIE via the Langmuir−Blodgett (LB) technique. This systematic investigation highlights the key role of the heteroatom-containing tether of 2,3diphenylquinoxalines in the successful fabrication of Langmuir layers at the air−water interface and the transfer of AIE-emitting supramolecular aggregates onto solid supports. Using both diazapolyoxa-and polyazamacrocycles, we prepared AIE-exhibiting monolayer films containing emissive supramolecular aggregates on silica, mica, and quartz glass and characterized them using ultraviolet−visible (UV−vis) and photoluminescence (PL) spectroscopies, atomic force microscopy (AFM) imaging, and fluorescence microscopy. We also obtained multilayer AIE-emitting films through the LB technique, albeit with increased complexity. Remarkably, by employing the smallest macrocycle N 2 C 3 Q, we successfully prepared LB films suitable for the visual detection of acidic vapors. This sensing material, which contains a much lesser amount of organic dye compared with traditional drop-cast films, can be regenerated and utilized for real-life sample analysis, such as monitoring the presence of ammonia in the air and the freshness of meat.

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Section: ■ Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Preparation of Langmuir–Blodgett Films from Quinoxalines Exhibiting Aggregation-Induced Emission and Their Acidochromism

Ermakova,

Zvyagina,

Kharlamova

et al. 2024

Langmuir

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“…However, due to the hydrophobicity of most AIEgens, it is necessary to modify these molecules to make them more hydrophilic to facilitate their use in biological applications. [128,129] Polymer encapsulation is a common method of water-soluble modification, which has characteristics of simple preparation and high efficiency. [130] PEG is an inert, noncarcinogenic polymer, which is one of the preferred polymers to modify surface of NPs.…”

Section: Peg-polymer Propertiesmentioning

confidence: 99%

PEG‐Polymer Encapsulated Aggregation‐Induced Emission Nanoparticles for Tumor Theranostics

Dai

Dong

Wang

et al. 2021

Adv Healthcare Materials

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In the field of tumor imaging and therapy, the aggregation-caused quenching (ACQ) effect of fluorescent dyes at high concentration is a great challenge. In this regard, the aggregation-induced emission luminogens (AIEgens) show great potential, since AIEgens effectively overcome the ACQ effect and have better fluorescence quantum yield, photobleaching resistance, and photosensitivity. Polyethylene glycol (PEG)-polymer is the most commonly used carrier to prepare nanoparticles (NPs). The advantage of PEGylation is that it can greatly prolong the metabolic half-life and reduce immunogenicity and toxicity. Considering that the hydrophobicity of most AIEgens hinders their application in organisms, the use of PEG-polymer encapsulation is an effective strategy to overcome this obstacle. Importantly, bioactive functional groups can be modified on PEG-polymers to enhance the biological effect of NPs. The combination of powerful AIEgens and PEG-polymers provides a new strategy for tumor imaging and therapy, which is promising for clinical application.

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“…Amphiphilic materials such as semiconductors, display devices, solar cells, and sensors are widely used in the field of electronic devices. , In particular, the amphiphilic polymers play an important role in the formation of conductive lines, thin film transistors, sealants, and moisture barrier layers, which are the key elements of electronic devices. − For instance, poly(styrenesulfonate) (PSS) is known to be used with conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT), and PEDOT/PSS has been used for organic light-emitting diodes, organic solar cells, organic thin film transistors, and sensors. , In addition, from the point of view of environmental issues, water-soluble polymers are one of the most prominent materials in various industrial fields, and thus the market for water-soluble polymer has been growing rapidly in recent years. Thus, amphiphilic polymers such as hydrophobically modified (HM) water-soluble polymers have been widely studied fundamentally and practically for two decades or more. − Therefore, the association behavior of HM-polyanions, several sodium 2-(acrylamido)-2-methylpropanesulfonates (AMPSs) having hydrophobic units and their interactions with liposomes, and surfactant micelles have been fundamentally studied so far. − ,− As the HM-PAMPS polymers, two PAMPS polymers consisting of PAMPS bearing a 5 mol % (1-pyrenyl)butyl- N - n -octadecyl group (PyBuODA) randomly (PAMPS-PyBuODA) and PAMPS end-modified with a PyBuODA group ( e -PyBuODA-PAMPS) as shown in Figure are focused on in this article.…”

Section: Introductionmentioning

confidence: 99%

Fluorescence Study of the Interaction between Hydrophobically Modified Polymers and Charged Particles in Aqueous Media

Mizusaki

2022

Langmuir

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The interaction of hydrophobically randomly modified and endmodified poly(2-(acrylamido)-2-methylpropanesulfonate)s (PAMPSs) with nonionic and positively and negatively charged surfactants was studied with the fluorescence spectroscopic technique of labeled pyrene. The results indicated that the randomly modified PAMPS bound to the nonionic and positively charged surfactants and that the disruption of intrapolymer micelles formed by the polymer occurred. In contrast, end-modified PAMPS was bound to the surfactants without the disruption of multipolymer aggregates formed by the polymer in a comparably low concentration range of surfactants. The conformation of the polymer− surfactant complex was confirmed to depend on the position of the hydrophobic group in the polymer chains. In the case of negatively charged surfactant, the complex formation between the polymers and the surfactants was significantly restricted due to the electrostatic repulsion of anionic sites of the polymer chains and the negatively charged surfactants.

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Amphiphilic polymers for aggregation-induced emission at air/liquid interfaces

Cited by 14 publications

References 54 publications

Preparation of Langmuir–Blodgett Films from Quinoxalines Exhibiting Aggregation-Induced Emission and Their Acidochromism

Preparation of Langmuir–Blodgett Films from Quinoxalines Exhibiting Aggregation-Induced Emission and Their Acidochromism

PEG‐Polymer Encapsulated Aggregation‐Induced Emission Nanoparticles for Tumor Theranostics

Fluorescence Study of the Interaction between Hydrophobically Modified Polymers and Charged Particles in Aqueous Media

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