Engineered nano-sphere array of gold-DNA core–shells and junctions as opto-plasmonic sensors for biodetection

Osanloo, Nahid; Ahmadi, Vahid; Naser-Moghaddasi, Mohammad; Darabi, Elham

doi:10.1039/d1ra03079e

Cited by 3 publications

(2 citation statements)

References 62 publications

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“…Besides nanoparticles, several other nanomaterials have also been explored for their possible contributions in enhancing the performance of plasmonic sensors. Some of these include nanorods [92][93][94], nanowires [95][96][97][98][99], nanosheets [100][101][102], nanotubes [103,104], fullerenes [105,106], TM dichalcogenides, [107,108] hexagonal boron nitride [109,110], and core-shells [111][112][113]. Studies focussing on the integration of nanomaterials in plasmonics for sensing applications have led to breakthrough technologies such as wearable plasmonic sensors [114,115] and multi-parameter sensing [116][117][118].…”

Section: Nanomaterials Plasmonicsmentioning

confidence: 99%

Plasmonic gas sensors based on nanomaterials: mechanisms and recent developments

Vaidyanathan,

Mondal,

Rout

et al. 2024

J. Phys. D: Appl. Phys.

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Sensing devices for rapid analytics are important societal requirements, with wide applications in environmental diagnostics, food testing, and disease screening. Nanomaterials present excellent opportunities in sensing applications owing to their superior structural strength, and their electronic, magnetic, and optoelectronic properties. Among the various mechanisms of gas sensing, including chemiresistive sensors, electrochemical sensors, and acoustic sensors, another promising area in this field involves plasmonic sensors. The advantage of nanomaterial-plasmonic sensors lies in the vast opportunities for tuning the sensor performance by optimizing the nanomaterial structure, thereby producing highly selective and sensitive sensors. Recently, several novel plasmonic sensors have been reported, with various configurations such as nanoarray resonator-, ring resonator-, and fiber-based plasmonic sensors. Going beyond noble metals, some promising nanomaterials for developing plasmonic gas sensor devices include two-dimensional materials, viz. graphene, transition metal dichalcogenides, black phosphorus, blue phosphorus, and MXenes. Their properties can be tuned by creating hybrid structures with layers of nanomaterials and metals, and the introduction of dopants or defects. Such strategies can be employed to improve the device performance in terms of its dynamic range, selectivity, and stability of the response signal. In this review, we have presented the fundamental properties of plasmons that facilitate its application in sensor devices, the mechanism of sensing, and have reviewed recent literature on nanomaterial-based plasmonic gas sensors. This review briefly describes the status quo of the field and future prospects.

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Section: Nanomaterials Plasmonicsmentioning

confidence: 99%

Plasmonic gas sensors based on nanomaterials: mechanisms and recent developments

Vaidyanathan,

Mondal,

Rout

et al. 2024

J. Phys. D: Appl. Phys.

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“…Here we consider the on or low impedance state to be 1000 and the off or high impedance state to be 100 000, which is usually reported for DNA structures with an impedance ratio in the range of a few hundred. 47 …”

Section: Nanosphere With Dna Coatmentioning

confidence: 99%

Analytical study of gold–DNA nano core–shell cloaking characteristics for drug delivery and cancer therapy

et al. 2023

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Microarrays towards nanoarrays and the future Next Generation of Sequencing methodologies (NGS)

Bracamonte

2022

Sensing and Bio-Sensing Research

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Engineered nano-sphere array of gold-DNA core–shells and junctions as opto-plasmonic sensors for biodetection

Abstract: Several engineered optoplasmonic structures including DNA rods as junctions between GNPs for controlling and improving the absorbance were proposed.

Cited by 3 publications

References 62 publications

Plasmonic gas sensors based on nanomaterials: mechanisms and recent developments

Plasmonic gas sensors based on nanomaterials: mechanisms and recent developments

Analytical study of gold–DNA nano core–shell cloaking characteristics for drug delivery and cancer therapy

Microarrays towards nanoarrays and the future Next Generation of Sequencing methodologies (NGS)

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