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

Cennamo, Nunzio; Trigona, Carlo; Graziani, S.; Zeni, Luigi; Arcadio, Francesco; Pasquale, Giovanna Di; Pollicino, Antonino

doi:10.3390/s19224894

Cited by 19 publications

(18 citation statements)

References 29 publications

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“…In this study (thin BC waveguides), the thickness of both configurations reported in Figure 4a, with and without ILs, is equal to about 36 µm, instead of 140 µm [8].…”

Section: B Lspr-bc Sensor Systemmentioning

confidence: 88%

“…This gold layer covers the cellulose wires and sets up a kind of nanowires grid able to excite LSPR. The same sputtering process has been used in this study and in [8,21] for all the tested BC sensor configurations. (patch), so the POFs have been proven to be particularly advantageous for this role due to their large diameter, great numerical aperture, easy manipulation, simple modification, excellent flexibility, and the fact that plastic is able to withstand smaller bend radii than glass.…”

Section: B Lspr-bc Sensor Systemmentioning

confidence: 99%

“…We have already investigated the role of ILs inside of BC waveguides, when the thickness of the BC waveguides is about 140 µm [8]. In this case (thick slab BC waveguides), we have observed that the use of ILs decreases the sensor performances [8]. So, in this work we have reduced the thickness of the BC layer to exploit light-scattering, induced by the ILs in the BC waveguide, to improve the plasmonic phenomenon.…”

Section: Introductionmentioning

confidence: 97%

“…In particular, we want to observe the effect of using ILs in thin BC waveguides. We have already investigated the role of ILs inside of BC waveguides, when the thickness of the BC waveguides is about 140 µm [8]. In this case (thick slab BC waveguides), we have observed that the use of ILs decreases the sensor performances [8].…”

Section: Introductionmentioning

confidence: 98%

“…In particular, authors propose various sensing elements based on BC, impregnated with Ionic Liquids (ILs), and covered by polymeric electrodes (PEDOT:PSS) in order to measure displacement, mass, acceleration and absorbed particles/optical channel [5][6][7]. This latter solution has been already investigated by some of the authors in order to realize an eco-friendly disposable plasmonic sensor based on BC and gold [8].…”

Section: Introductionmentioning

confidence: 99%

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Green LSPR Sensors Based on Thin Bacterial Cellulose Waveguides for Disposable Biosensor Implementation

Cennamo

Trigona

Graziani

et al. 2021

IEEE Trans. Instrum. Meas.

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Nowadays there is an increasing request to realize green, eco-friendly and biodegradable electronic devices for biosensor implementation. In this context, we have conceived and realized a green sensor based on Localized Surface Plasmon Resonance (LSPR) phenomenon in a thin slab waveguide of Bacterial Cellulose (BC). These LSPR sensors can be obtained simply by gold sputtering on the slab BC waveguides. The performances have been studied investigating the presence of ionic liquids (ILs) inside and in absence of ILs with various thickness of the BC substrate. Depending of the thickness of the BC layer, the ILs effect on the LSPR can be constructive or destructive. In this work, we present a study of the sensor performances, in terms of bulk sensitivity and resolution by changing the aforementioned parameters. Analyses in terms of BC geometry are pursued in order to improve the interaction between the light and the LSPR phenomenon. The experimental setup used for this kind of extrinsic optical fiber LSPR sensor is based on two optical fibers used to connect a white light source and a spectrometer with the green LSPR sensor chip. Results evince the suitability of the proposed approach in order to realize sensors and biosensors with several intriguing properties and features. In fact, these LSPR platforms could be used to realize disposable biosensors, when a specific bioreceptor is covalently bonded to the gold.

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“…In this study (thin BC waveguides), the thickness of both configurations reported in Figure 4a, with and without ILs, is equal to about 36 µm, instead of 140 µm [8].…”

Section: B Lspr-bc Sensor Systemmentioning

confidence: 88%

Section: B Lspr-bc Sensor Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Green LSPR Sensors Based on Thin Bacterial Cellulose Waveguides for Disposable Biosensor Implementation

Cennamo

Trigona

Graziani

et al. 2021

IEEE Trans. Instrum. Meas.

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Cholesteric Liquid Crystals Sensors Based on Nanocellulose Derivatives for Improvement of Quality of Human Life: A Review

Leal‐Junior

Soares

Almeida

et al. 2023

Advanced Sensor Research

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This paper presents a review of cholesteric liquid crystal (CLC) sensors based on water and hydroxypropyl cellulose (HPC) mixtures for healthcare and human quality of life applications. First, an overview of the sensors system demands for healthcare and environmental sensing is presented in which there is also a discussion on the sensors technologies conventionally applied in these scenarios. Then, a discussion of the water‐HPC mixtures and the formation of the CLCs as well as their operation principle and fabrication methods is presented. Thereafter, the applications of such technologies for the assessment of different parameters related to biomechanics, medical conditions, and environment contamination are discussed in detail. Thus, the use of CLC sensors based on HPC membranes provides novel sustainable approaches for highly sensitive sensors systems with intuitive signal acquisition and analysis. For these reasons, one can envisage a widespread of such technologies due to the mentioned advantages in conjunction with low cost, flexibility in fabrication, simple signal processing, biocompatibility, and biodegradability.

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Bacterial cellulose‐based biosensors

Torres¹,

Troncoso²,

Gonzales³

et al. 2020

Med Devices & Sens

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A sensor is a device that measures a physical quantity and converts it into a signal, which can be read by an observer or an instrument. It is composed of a receptor element that detects changes or events in a physical environment, and a transducer element that provides an output signal (Ummartyotin & Manuspiya, 2015). Biosensors incorporate biological elements that perform the recognition task. According to the IUPAC (Palchetti, Hansen, & Barcelo, 2017), a biosensor is an integrated receptor transducer device, capable of providing selective quantitative or semi-quantitative analytical information using a biological recognition element. The bioreceptor element of these biosensors may be enzymes, antibodies, living cells and tissue, among others. There are several advantages of biosensors over traditional sensors. Usually, the analyte detection carried out by biosensors can be made without prior separation. In addition, their short response times make possible the real-time monitoring of biological and manufacturing processes. Other advantages include their ease of use, allowing in-field or point-of-care measurements, the flexibility and simplicity of preparation, and the possibility of miniaturization and automatization (Cristea, Hârceagâ, & Sậndulescu, 2014). Miniaturization is of great importance because many biological samples are available in small amounts, and tissue damage must be minimized in cases of in vivo monitoring. The use of biosensors as components of modern medical devices has improved their portability, functionality and reliability for point-of-care analysis and real-time diagnosis (Morrison, Dokmeci, Demirci, & Khademhosseini, 2008).

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

Cited by 19 publications

References 29 publications

Green LSPR Sensors Based on Thin Bacterial Cellulose Waveguides for Disposable Biosensor Implementation

Green LSPR Sensors Based on Thin Bacterial Cellulose Waveguides for Disposable Biosensor Implementation

Cholesteric Liquid Crystals Sensors Based on Nanocellulose Derivatives for Improvement of Quality of Human Life: A Review

Bacterial cellulose‐based biosensors

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