Readily tunable surface plasmon resonances in gold nanoring arrays fabricated using lateral electrodeposition

Mehla, Sunil; Selvakannan, P. R.; Bhargava, Suresh K.

doi:10.1039/d2nr02198f

Cited by 10 publications

(7 citation statements)

References 35 publications

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“…Top-down lithographic fabrication is an attractive method for creating NRs over large areas with high accuracy and efficiency. [32][33][34][35][36] Colloidal lithography, for instance, stands out as a straightforward and cost-effective technique for patterning gold (Au) NRs over large areas. [37][38][39] This approach involves the self-assembly of spherical colloids, such as polystyrene and silica, as templates, followed by selective metal etching and regrowth.…”

Section: Top-down Fabrication Methodsmentioning

confidence: 99%

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Wet‐chemical synthesis of two‐dimensional complex nanorings for near‐field focusing

Jung,

Lee,

Lee

et al. 2024

Bulletin Korean Chem Soc

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Plasmonic nanorings are promising building blocks for a variety of applications, including optical and biological sensing, and energy because the open inner spaces of the nanorings exhibit a high surface‐to‐area ratio and possess unique optical properties that are different from solid nanostructures. However, the simple architecture of mono‐rim based structures leads to low electromagnetic near‐field confinement, which requires a more complex structure to facilitate effective interaction with light. Herein, we report on recent progress of synthetic strategies for fabricating plasmonic nanorings using both top‐down and bottom‐up approaches. First, we introduce the conventional methods for achieving classical ring architectures. Then, we discuss rationally designed synthesis methods for creating advanced and structurally unique nanostructures to increase near‐field enhancement. This process involves multi‐step chemical toolkits that enable control over the shape and the introduction of repeated units in a single entity. Then, we explore the potential applications of complex nanoring architectures.

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Section: Top-down Fabrication Methodsmentioning

confidence: 99%

“…Top‐down lithographic fabrication is an attractive method for creating NRs over large areas with high accuracy and efficiency 32–36 . Colloidal lithography, for instance, stands out as a straightforward and cost‐effective technique for patterning gold (Au) NRs over large areas 37–39 .…”

Section: Introduction Of 2d Nanorings and Fabrication Methodsmentioning

confidence: 99%

Wet‐chemical synthesis of two‐dimensional complex nanorings for near‐field focusing

Jung,

Lee,

Lee

et al. 2024

Bulletin Korean Chem Soc

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“…The two-step lateral electrodeposition method used for fabrication of sunflower mimic gold plasmonic metasurfaces was previously reported elsewhere. 2,17 The experimental details of the synthesis and characterization methods are provided in Section S1 of the ESI. † Three types of gold sunflower arrays were investigated in this study all of which consisted of Au-SiO 2 discs in the centre and gold dendrites of 2D leaf-like (GSA1), branched conical (GSA2) and conical (GSA3) shapes on the lateral surfaces as shown in Fig.…”

Section: Methodsmentioning

confidence: 99%

The impact of dendrite morphology on the optical properties of sunflower mimic plasmonic metasurfaces

Mehla,

Balendhran,

Bhargava

2023

J. Mater. Chem. C

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“…Similarly, conductive metals like copper, silver, gold, and platinum are ideal for photothermal and photodynamic therapy because these metals support plasmon excitation by light irradiation, exhibit tuneable plasmonic response and are also known to be biocompatible. [ 67 ] Figure depicts the important characteristics of nanozymes. The composition can be considered a primary characteristic because it governs the basic framework upon which other tumor remediation functionalities are added.…”

Section: Design and Synthesis Of Nanozymes For Cancer Diagnosis And T...mentioning

confidence: 99%

Smart Nanozymes for Cancer Therapy: The Next Frontier in Oncology

Mehla

Begum

et al. 2023

Adv Healthcare Materials

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Nanomaterials that mimic the catalytic activity of natural enzymes in the complex biological environment of the human body are called nanozymes. Recently, nanozyme systems have been reported with diagnostic, imaging, and/or therapeutic capabilities. Smart nanozymes strategically exploit the tumor microenvironment (TME) by the in situ generation of reactive species or by the modulation of the TME itself to result in effective cancer therapy. This topical review focuses on such smart nanozymes for cancer diagnosis, and therapy modalities with enhanced therapeutic effects. The dominant factors that guide the rational design and synthesis of nanozymes for cancer therapy include an understanding of the dynamic TME, structure‐activity relationships, surface chemistry for imparting selectivity, and site‐specific therapy, and stimulus‐responsive modulation of nanozyme activity. This article presents a comprehensive analysis of the subject including the diverse catalytic mechanisms of different types of nanozyme systems, an overview of the TME, cancer diagnosis, and synergistic cancer therapies. The strategic application of nanozymes in cancer treatment can well be a game changer in future oncology. Moreover, recent developments may pave the way for the deployment of nanozyme therapy into other complex healthcare challenges, such as genetic diseases, immune disorders, and ageing.

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Readily tunable surface plasmon resonances in gold nanoring arrays fabricated using lateral electrodeposition

Abstract: Generation and fine-tuning of surface plasmon resonances is a prerequisite for several established and emerging applications such as photovoltaics, photocatalysis, photothermal therapy, surface-enhanced spectroscopy, sensing, superlensing and lasing. We present...

Cited by 10 publications

References 35 publications

Wet‐chemical synthesis of two‐dimensional complex nanorings for near‐field focusing

Wet‐chemical synthesis of two‐dimensional complex nanorings for near‐field focusing

The impact of dendrite morphology on the optical properties of sunflower mimic plasmonic metasurfaces

Smart Nanozymes for Cancer Therapy: The Next Frontier in Oncology

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