Optical fiber pH sensor based on gold nanoparticles into polymeric coatings

Socorro, Abian B.; Rivero, Pedro J.; Hernáez, Miguel; Goicoechea, Javier; Matı́as, Ignacio R.; Arregui, Francisco J.

doi:10.1117/12.2179970

Cited by 7 publications

(6 citation statements)

References 22 publications

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“…Other methods rely on dependence of dielectric’s refractive index on concentration of target chemicals, such as a water salinity sensor [ 131 ]. Several pH fiber optic LSPR sensors have also been demonstrated [ 132 , 133 ]. Gas sensing with SPR typically relies on metals (palladium, silver) or semiconducting metal oxide over-layers (indium tin oxide, tin dioxide, nickel oxide, zinc oxide, titanium dioxide) that change their electric permittivity when exposed to gaseous environments.…”

Section: Applicationsmentioning

confidence: 99%

Plasmonic Fiber Optic Refractometric Sensors: From Conventional Architectures to Recent Design Trends

Klantsataya

Jia

Ebendorff-Heidepriem

et al. 2016

Sensors

171

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Surface Plasmon Resonance (SPR) fiber sensor research has grown since the first demonstration over 20 year ago into a rich and diverse field with a wide range of optical fiber architectures, plasmonic coatings, and excitation and interrogation methods. Yet, the large diversity of SPR fiber sensor designs has made it difficult to understand the advantages of each approach. Here, we review SPR fiber sensor architectures, covering the latest developments from optical fiber geometries to plasmonic coatings. By developing a systematic approach to fiber-based SPR designs, we identify and discuss future research opportunities based on a performance comparison of the different approaches for sensing applications.

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Section: Applicationsmentioning

confidence: 99%

Plasmonic Fiber Optic Refractometric Sensors: From Conventional Architectures to Recent Design Trends

Klantsataya

Jia

Ebendorff-Heidepriem

et al. 2016

Sensors

171

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“…Other interesting works which employ the LbL technique for the development of hybrid nanostructured coatings based on both inorganic nanoparticles (gold nanoparticles, AuNPs) and organic polymeric structure (polyelectrolytes) onto the optical fiber core for pH sensing can be found in [88,89]. Due to the special optical properties inherent to the metallic nanoparticles, a Localized Surface Plasmon Resonance (LSPR) band is appreciated at a specific wavelength position (around 530 nm) which is indicative that spherical PAA-AuNPs have been successfully incorporated in the multilayer structure [90].…”

Section: Applications Of the Optical Fiber Sensors Based On Layer-mentioning

confidence: 99%

Layer-by-Layer Nano-assembly: A Powerful Tool for Optical Fiber Sensing Applications

Rivero

Goicoechea

Arregui

2019

Sensors

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The ability to tune the composition of nanostructured thin films is a hot topic for the design of functional coatings with advanced properties for sensing applications. The control of the structure at the nanoscale level enables an improvement of intrinsic properties (optical, chemical or physical) in comparison with the traditional bulk materials. In this sense, among all the known nanofabrication techniques, the layer-by-layer (LbL) nano-assembly method is a flexible, easily-scalable and versatile approach which makes possible precise control of the coating thickness, composition and structure. The development of sensitive nanocoatings has shown an exceptional growth in optical fiber sensing applications due to their self-assembling ability with oppositely charged components in order to obtain a multilayer structure. This nanoassembly technique is a powerful tool for the incorporation of a wide variety of species (polyelectrolytes, metal/metal oxide nanoparticles, hybrid particles, luminescent materials, dyes or biomolecules) in the resultant multilayer structure for the design of high-performance optical fiber sensors. In this work we present a review of applications related to optical fiber sensors based on advanced LbL coatings in two related research areas of great interest for the scientific community, namely chemical sensing (pH, gases and volatile organic compounds detection) as well as biological/biochemical sensing (proteins, immunoglobulins, antibodies or DNA detection).

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“…One of the main benefits of using a polymeric protective agent such as Poly(acrylic acid, sodium salt) (PAA) for the synthesis of metallic nanoparticles is that this weak polyelectrolyte can be used to fabricate a multilayer buildup by using the LbL nano-assembly [61,62]. Once a good control over the synthesis of multicolor nanoparticles and the distribution of them in the resultant LbL films is obtained, the design of optical fiber sensors to detect physical parameters (refractive index, relative humidity) [63,64,65,66], chemical parameters (pH) [67,68] or biomedical parameters (human breathing) [69] is possible. A clear example can be found in Figure 10 where colored thin films based on the incorporation of metallic AgNPs with an orange coloration by using the LbL technique is presented (Figure 10a).…”

Section: Polymers As a Support Of The Sensitive Elementmentioning

confidence: 99%

Optical Fiber Sensors Based on Polymeric Sensitive Coatings

2018

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Abstract:Polymer technology is one of the fastest growing fields of contemporary research due to the possibility of using a wide variety of synthetic chemical routes for obtaining a polymeric network with a well-defined structure, resulting in materials with outstanding macroscopic properties. Surface engineering techniques based on the implementation of polymeric structures can be used as an interesting tool for the design of materials with functional properties. In this sense, the use of fabrication techniques for the design of nanostructured polymeric coatings is showing an important growth due to the intrinsic advantages of controlling the structure at a nanoscale level because physical, chemical, or optical properties can be considerably improved in comparison with the bulk materials. In addition, the presence of these sensitive polymeric coatings on optical fiber is a hot topic in the scientific community for its implementation in different market niches because a wide variety of parameters can be perfectly measured with a high selectivity, sensitivity, and fast response time. In this work, the two main roles that a polymeric sensitive matrix can play on an optical fiber for sensing applications are evaluated. In a first section, the polymers are used as a solid support for the immobilization of specific sensitive element, whereas in the second section the polymeric matrix is used as the chemical transducer itself. Additionally, potential applications of the optical fiber sensors in fields as diverse as biology, chemistry, engineering, environmental, industry or medicine will be presented in concordance with these two main roles of the polymeric sensitive matrices.

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Optical fiber pH sensor based on gold nanoparticles into polymeric coatings

Cited by 7 publications

References 22 publications

Plasmonic Fiber Optic Refractometric Sensors: From Conventional Architectures to Recent Design Trends

Plasmonic Fiber Optic Refractometric Sensors: From Conventional Architectures to Recent Design Trends

Layer-by-Layer Nano-assembly: A Powerful Tool for Optical Fiber Sensing Applications

Optical Fiber Sensors Based on Polymeric Sensitive Coatings

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