Patterning of polyoxometalate rings on gold nanorods

Yang, Chenggong; Tao, Xingfu; Yang, Yang; Liu, Kun

doi:10.1039/c9cc06968b

Cited by 7 publications

(5 citation statements)

References 32 publications

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“…The surface of Au NRs can be automatically coated by small-molecule ligands through electrostatic interaction and π-stacking. , Thiol molecules are prevalent ligands for the generation of a self-assembled monolayer on Au NRs. They include benzenethiol, 3-mercaptopropionic acid, mercaptoethylamine, alkanethiol, , 11-mercaptoundecanoic acid, ,− 16-mercaptohexanoic acid, and 2-aminoethanethiol .…”

Section: Synthesismentioning

confidence: 99%

Gold Nanorods: The Most Versatile Plasmonic Nanoparticles

et al. 2021

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Gold nanorods (NRs), pseudo-one-dimensional rod-shaped nanoparticles (NPs), have become one of the burgeoning materials in the recent years due to their anisotropic shape and adjustable plasmonic properties. With the continuous improvement in synthetic methods, a variety of materials have been attached around Au NRs to achieve unexpected or improved plasmonic properties and explore state-of-the-art technologies. In this review, we comprehensively summarize the latest progress on Au NRs, the most versatile anisotropic plasmonic NPs. We present a representative overview of the advances in the synthetic strategies and outline an extensive catalogue of Au-NR-based heterostructures with tailored architectures and special functionalities. The bottom-up assembly of Au NRs into preprogrammed metastructures is then discussed, as well as the design principles. We also provide a systematic elucidation of the different plasmonic properties associated with the Au-NR-based structures, followed by a discussion of the promising applications of Au NRs in various fields. We finally discuss the future research directions and challenges of Au NRs.

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Section: Synthesismentioning

confidence: 99%

Gold Nanorods: The Most Versatile Plasmonic Nanoparticles

et al. 2021

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“…S13 †). 31 The dynamic light scattering (DLS) results confirmed that M-AuNRs and M-AuNR@POMs maintained a further improved dispersion in water (Fig. S14 †).…”

Section: Synthesis and Characterization Of The Nir Photothermal Catal...mentioning

confidence: 64%

“…Thus, the combination of POMs with AuNRs could be expected to achieve the property of plasma-enhanced photothermal catalysis. However, the existing reports of POMs and AuNRs composite nanomaterials are limited to the study of their assembly morphology 31 and biological applications, 32 and have not studied their photocatalytic aspects in detail yet.…”

Section: Introductionmentioning

confidence: 99%

Near-infrared photothermal conversion of polyoxometalate-modified gold nanorods for plasmon-enhanced catalysis

Wang

Chen

et al. 2023

Inorg. Chem. Front.

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“…Consequently, microparticles with twisted cylinders of PDMS domains were observed (Figures 2c and S11). In this case, the cationic surfactants will preferentially bind to {Mo 72 V 30 } due to their stronger electrostatic attractions than that of protonated PS-NH 2 , 48 leading to the detachment of PS-NH 2 and the disassembly of NPSs (Figures 2d, S12, and Table S1). Then, PS 5.5k -NH 2 will migrate to the PS microdomains and induce the structure transition.…”

Section: Resultsmentioning

confidence: 99%

Dynamic Electrostatic Interfacial Engineering for Block Copolymer Microparticles with Reversible Structures

Zhang,

Cheng,

Han

et al. 2024

ACS Nano

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Responsive nanoparticle surfactants (NPSs) can dynamically and reversibly modulate the interfacial interactions between incompatible components, which are essential in the interfacial catalysis, corrosion, and self-assembly of block copolymers (BCPs). However, NPSs with stimuli-responsive behavior often involve tedious chemical synthesis and surface modifications. Herein, we propose a strategy to in situ construct a kind of dynamic and reversible NPSs by the interfacial electrostatic interaction between the negatively charged nanoparticles (NPs) and the positively charged homopolymers. The NPSs assembled at the oil/water interface reduce the interfacial tension and direct the confined assembly of BCP. Meanwhile, the dynamic NPSs can be disassembled by increasing the pH value or introducing competitive electrostatic attractions, which can dynamically and reversibly change the interfacial properties as well as the alignment of polymer chains, enabling BCP microparticles with reversibly switchable lamellar and cylindrical structures. Furthermore, by the introduction of aggregation-induced emission luminogens as tails to the NPSs, the reversible transformation of BCP microparticles can be visualized by fluorescence emission, which is dependent on the nanostructures of microparticles. This work establishes a concept for dynamically manipulating interfacial interactions and reversibly switching BCP microparticles without time-consuming NPS synthesis, showing promising applications in the fabrication of smart materials with switchable structures and properties.

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Patterning of polyoxometalate rings on gold nanorods

Abstract: Polyoxometalates (POMs) were self-assembled on cetyltriethylammonium bromide-covered gold nanorods and formed periodic POM rings, which could be used as templates for the synthesis of Ag nano-rings.

Cited by 7 publications

References 32 publications

Gold Nanorods: The Most Versatile Plasmonic Nanoparticles

Gold Nanorods: The Most Versatile Plasmonic Nanoparticles

Near-infrared photothermal conversion of polyoxometalate-modified gold nanorods for plasmon-enhanced catalysis

Dynamic Electrostatic Interfacial Engineering for Block Copolymer Microparticles with Reversible Structures

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