Control of growth solution on the dimensions of gold nanorods accounted for LSPR sensitivity toward liquid ammonia sensing

Bala, Saroj; Dokwal, Sumit; Saini, Sangeeta; Mahendia, Suman; Kumar, S.

doi:10.1016/j.photonics.2020.100782

Cited by 6 publications

(1 citation statement)

References 43 publications

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“…This enormous difference was attributed to the surfactant capping layer on the NRs. Recently, Bala et al [ 166 ] presented low aspect ratio Au NRs with RI sensitivities between 5000 and 6000 nm/RIU. These RI sensitivities are completely out of scale when compared to other studies, which can be explained by the nature of the surrounding medium, as done by Jain et al [ 167 ].…”

Section: Nanostructuresmentioning

confidence: 99%

Advances in Plasmonic Sensing at the NIR—A Review

Santos

Almeida

Pastoriza‐Santos

et al. 2021

Sensors

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Surface plasmon resonance (SPR) and localized surface plasmon resonance (LSPR) are among the most common and powerful label-free refractive index-based biosensing techniques available nowadays. Focusing on LSPR sensors, their performance is highly dependent on the size, shape, and nature of the nanomaterial employed. Indeed, the tailoring of those parameters allows the development of LSPR sensors with a tunable wavelength range between the ultra-violet (UV) and near infra-red (NIR). Furthermore, dealing with LSPR along optical fiber technology, with their low attenuation coefficients at NIR, allow for the possibility to create ultra-sensitive and long-range sensing networks to be deployed in a variety of both biological and chemical sensors. This work provides a detailed review of the key science underpinning such systems as well as recent progress in the development of several LSPR-based biosensors in the NIR wavelengths, including an overview of the LSPR phenomena along recent developments in the field of nanomaterials and nanostructure development towards NIR sensing. The review ends with a consideration of key advances in terms of nanostructure characteristics for LSPR sensing and prospects for future research and advances in this field.

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Section: Nanostructuresmentioning

confidence: 99%

Advances in Plasmonic Sensing at the NIR—A Review

Santos

Almeida

Pastoriza‐Santos

et al. 2021

Sensors

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Gold Nanoparticle‐Based Sensing of Pesticides and Fertilizers in Aqueous System: A Review

Salsabiila,

Morsin,

Razali

et al. 2024

Physica Status Solidi (a)

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The extensive use of pesticides and fertilizers in agriculture has led to significant environmental pollution, particularly in aqueous systems. This review provides an inclusive overview of the advancements in the application of gold nanoparticles (GNPs), specifically for the sensing of pesticides and fertilizers on surface water. The novelty of this work lies in its focused analysis of the unique localized surface plasmon resonance properties of GNPs that enable highly sensitive and selective detection of contaminants on surface water. Various synthesis methods and detection mechanisms are discussed, emphasizing the integration of GNP‐based sensors with modern analytical techniques to enhance detection limits and response time. The review also highlights the significance of monitoring agricultural chemicals in water systems from an environmental perspective. In addition, this review also reveals the potential of GNPs contribution toward sustainable agricultural practices by providing reliable, rapid, and cost‐effective sensing solutions. Future perspectives on the development of GNP‐based sensors, including the fundamental challenges in designing GNP sensors, such as incorporation with other materials, miniaturized and portable sensing devices, and field‐testing validation are also presented.

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