[INVITED] Slab plasmonic platforms combined with Plastic Optical Fibers and Molecularly Imprinted Polymers for chemical sensing

Zeni, Luigi; Pesavento, Maria; Marchetti, Simone; Cennamo, Nunzio

doi:10.1016/j.optlastec.2018.06.028

Cited by 22 publications

(21 citation statements)

References 35 publications

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“…The advantages of this approach, based on an extrinsic POF sensor, is the possibility of remote sensing by two POFs combined with a removable, eco-friendly, and disposable chip sensor for biochemical sensing applications. In fact, as shown in Table 1, the bulk sensitivity and the resolution of the sensor configuration without ILs in the BC paper are very similar to those obtained by other refractive index sensors (several already tested with receptors for the selective detection of analytes) [1,2,3,4,5,6,7,8,9,10,11,12,13,14,22,23,24,25,26,27,28,29], but with all the advantages of an eco-friendly disposable chip.…”

Section: Discussionsupporting

confidence: 81%

An Eco-Friendly Disposable Plasmonic Sensor Based on Bacterial Cellulose and Gold

Cennamo

Trigona

Graziani

et al. 2019

Sensors

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In several application fields, plasmonic sensor platforms combined with bio-receptors are intensively used to obtain biosensors. Most of these commercial devices are based on a disposable chip. Usually a gold chip, functionalized with a specific bio-receptor, inside a costly sensor system, is used. In this work, we propose a low-cost and small-size sensor system, used for monitoring a disposable plasmonic chip, based on an innovative optical waveguide made of bacterial cellulose (BC). In particular, we have sputtered gold on the green slab waveguide that is able to excite localized surface plasmon resonance (LSPR). Experimental results are presented on the capabilities of using the BC-based composite as an eco-friendly plasmonic sensor platform, which could be exploited for realizing disposable biosensors. The sensor has been used with optical fibers and simple equipment. More specifically, the fibers connect the green disposable LSPR sensor with a light source and with a spectrometer. The novel plasmonic sensing approach has been tested using two different optical waveguide configurations of BC, with and without ions inside BC.

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Section: Discussionsupporting

confidence: 81%

An Eco-Friendly Disposable Plasmonic Sensor Based on Bacterial Cellulose and Gold

Cennamo

Trigona

Graziani

et al. 2019

Sensors

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“…The results were compared to those obtained with a classic fibre optic system, obtaining better LODs, although cross-reactivity was not evaluated. The great advantages of this system were that no polishing of the fibre is required and that the flat shape improved reproducibility and the possibility of easily changing the chip after several cycles (Figure 12) [186].…”

Section: Other Materialsmentioning

confidence: 99%

“…Top and cross section view of the sensor system and outline of the experimental setup depicting the instrumentation. Reproduced from Reference [186] with permission of Elsevier.…”

Section: Figurementioning

confidence: 99%

Molecularly Imprinted Polymer-Based Hybrid Materials for the Development of Optical Sensors

Rico-Yuste¹,

Carrasco

2019

Polymers

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We report on the development of new optical sensors using molecularly imprinted polymers (MIPs) combined with different materials and explore the novel strategies followed in order to overcome some of the limitations found during the last decade in terms of performance. This review pretends to offer a general overview, mainly focused on the last 3 years, on how the new fabrication procedures enable the synthesis of hybrid materials enhancing not only the recognition ability of the polymer but the optical signal. Introduction describes MIPs as biomimetic recognition elements, their properties and applications, emphasizing on each step of the fabrication/recognition procedure. The state of the art is presented and the change in the publication trend between electrochemical and optical sensor devices is thoroughly discussed according to the new fabrication and micro/nano-structuring techniques paving the way for a new generation of MIP-based optical sensors. We want to offer the reader a different perspective based on the materials science in contrast to other overviews. Different substrates for anchoring MIPs are considered and distributed in different sections according to the dimensionality and the nature of the composite, highlighting the synergetic effect obtained as a result of merging both materials to achieve the final goal.

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“…have implemented important applications of this configuration based on the same plasmonic POF platform with different kinds of receptors, such as MIPs and bioreceptors . The authors have also presented MIPs combined with different POF platforms, that is, based on tapered POFs, gold nanostars, a polymer slab waveguide combined with POFs, and a trench milled between two POFs filled with MIP . In particular, the molecular imprinting technique is a convenient tool for the preparation of molecular‐recognition materials characterized by good chemical stability and selectivity.…”

Section: Introductionmentioning

confidence: 99%

“…In particular, the molecular imprinting technique is a convenient tool for the preparation of molecular‐recognition materials characterized by good chemical stability and selectivity. Moreover, the advantage of MIPs is that they can be directly formed, after deposition of the prepolymeric mixture, by a spin coater machine on the flat sensing surface, such as the D‐shaped fiber or the slab waveguide covered by gold …”

Section: Introductionmentioning

confidence: 99%

Polymer Optical Fibers for Sensing

Cennamo

Zeni

2020

Macromolecular Symposia

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Sensing techniques based on optical fibers are used in numerous key fields. For example, optical fiber sensors are exploited in medical diagnostics, environmental monitoring, physical parameters detection, industrial applications, food safety, and security. In fact, optical fiber sensors are used for their numerous capabilities, as for example when in the detection fast, portable, low-cost, small size, and/or rugged sensor systems are needed. In general, the optical fiber for sensing applications can be a glass one, a specialty one, or a polymer one. Polymer optical fibers (POFs) are especially advantageous due to their excellent flexibility, easy manipulation, large diameter, resilience, and the fact that plastic is able to withstand smaller bend radii than glass. These POF sensors, intrinsic and extrinsic, combined with different kinds of receptors can be directly connected to an online platform by interface software, allowing storing, analyzing, and displaying the sensor's data, to realize low-cost biochemical sensors for several applications. In this work, two plasmonic POF sensors, one intrinsic and another one extrinsic, that can be used in biochemical applications are described.

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[INVITED] Slab plasmonic platforms combined with Plastic Optical Fibers and Molecularly Imprinted Polymers for chemical sensing

Cited by 22 publications

References 35 publications

An Eco-Friendly Disposable Plasmonic Sensor Based on Bacterial Cellulose and Gold

An Eco-Friendly Disposable Plasmonic Sensor Based on Bacterial Cellulose and Gold

Molecularly Imprinted Polymer-Based Hybrid Materials for the Development of Optical Sensors

Polymer Optical Fibers for Sensing

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