Self-Assembly of Polyoxometalate-Based Nanoparticle Surfactants in Solutions

Xia, Zhiqin; Yang, Yang; Song, Yu-Fei; Shi, Shaowei

doi:10.1021/acsmacrolett.3c00503

ACS Macro Lett.

2024

DOI: 10.1021/acsmacrolett.3c00503

|View full text |Cite

Self-Assembly of Polyoxometalate-Based Nanoparticle Surfactants in Solutions

Zhiqin Xia,

Yang Yang,

Yu-Fei Song

et al.

Abstract: Nanoparticle surfactants (NPSs) are an emergent class of amphiphiles attractive for their controllable assembly at the liquid−liquid interface. In this work, intriguing self-assembly behavior and stimuli-responsiveness of NPSs in homogeneous solutions are presented. With β-cyclodextrin-grafted polyoxometalates (POMs) and ferrocene (or azobenzene)-terminated polystyrene in water/tetrahydrofuran, POM-based NPSs are formed via host−guest interactions and self-organize to vesicles driven by solvent-phobic effects.… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article3

Relationship

Self Cite0

Independent3

Authors

Journals

Cited by 3 publications

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Switchable pH-Responsive Morphologies of Coassembled Nucleobase Copolymers

Arsenie,

Semsarilar,

Benkhaled

et al. 2024

Biomacromolecules

View full text Add to dashboard Cite

This work presents supramolecular coassembled nucleobase copolymers with transitional morphologies upon pH changes (from 7.4 to 10). Uracil-and adenine-containing copolymers were prepared by RAFT, which allowed us to finely tailor the polymerization degree and the composition. The coassembled formulations prepared in an aqueous buffer at two distinct pH (7.4 and 10) formed spherical morphologies at physiological pH. The increase of the pH induced the apparition of various large, irreversible anisotropic supramolecular architectures. Isothermal titration calorimetry revealed that the coassembly at pH 7.4 was mainly guided by H-bonds between complementary nucleobases, while the experiments conducted at pH 10 showed that the assemblies were mainly driven by hydrophobic interactions. These results highlight that the nature of supramolecular interactions (H-bonds or hydrophobic interactions) has a great influence on the morphology of nucleobase-containing coassemblies when changing the pH. These findings may provide further perspectives in the field of advanced nanomaterials.

show abstract

Switchable pH-Responsive Morphologies of Coassembled Nucleobase Copolymers

Arsenie,

Semsarilar,

Benkhaled

et al. 2024

Biomacromolecules

View full text Add to dashboard Cite

show abstract

Complex Phase Transitions of Fully Rigid Sphere–Rod Amphiphiles Induced by Solvent Polarity in Dilute Solutions

Zhou,

Wei,

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

We report complex macrophase and microphase transitions of rigid amphiphiles with spherical Keggin molecular clusters as the solvophilic block and rod-like rigid oligofluorene (OF) as the solvophobic block in mixed solvents of water and polar organic solvent. By properly adjusting the solvent polarity, the amphiphiles are found to respond accordingly by self-assembling into multilayered incomplete onion-like structures (10−25 vol % THF), single-layered vesicular structures (60 vol % THF), and an unexpected macrophase separation in the middle (40−50 vol % THF), which is due to the anomalous trends in Keggin solubility as a result of the nature of TBA + counterions. The rigidity of the OF block prevents the amphiphile from assembling by following the rule of packing parameters; instead, interdigitation among different rods leads to the formation of the solvophobic domain to achieve self-assembly. The incomplete onion structures are controlled by the interdigitation of rigid rods for the number of layers and the electrostatic interaction among Keggin head groups for the interlayer distance. When the degree of interdigitation becomes lower, the self-assembly process shows a trend that can be explained by the traditional rule of packing parameter. This study demonstrates the formation of different self-assembled structures by rigid amphiphiles and their transitions induced by solvent composition. The self-assembly (microphase separation) of rigid amphiphiles in a dilute solution could indeed represent a broad area containing complicated, uncharted rules.

show abstract

Chemistry, applications, and future prospects of structured liquids

Ghaffarkhah,

Hashemi,

Isari

et al. 2024

Chem. Soc. Rev.

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Self-Assembly of Polyoxometalate-Based Nanoparticle Surfactants in Solutions

Cited by 3 publications

References 49 publications

Switchable pH-Responsive Morphologies of Coassembled Nucleobase Copolymers

Switchable pH-Responsive Morphologies of Coassembled Nucleobase Copolymers

Complex Phase Transitions of Fully Rigid Sphere–Rod Amphiphiles Induced by Solvent Polarity in Dilute Solutions

Chemistry, applications, and future prospects of structured liquids

Contact Info

Product

Resources

About