Electrospinning for High Performance Sensors

Macagnano, Antonella; Zampetti, Emiliano; Kny, E.

doi:10.1007/978-3-319-14406-1

Cited by 41 publications

(3 citation statements)

References 107 publications

(181 reference statements)

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“…This is why electrospun nanomaterials, having large specific surface area and high and tunable porosity [43], have found frequent use in the field of sensors of many types, such as chemiresistive, optic (fluorescent and colorimetric), acoustic wave (piezoelectric) or photoelectric [13]. Electrospun nanostructured sensors display faster adsorption and minimised bulk effects when compared to the conventional sensors [44].…”

Section: Electrospun Sensorsmentioning

confidence: 99%

Sensors from Electrospun Nanostructures

Manea¹,

Bertea²

2019

Nanostructures in Energy Generation, Transmission and Storage

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Nanotechnology exerts a significant influence on materials science, providing new insights into the design of functional materials. One of the most studied areas of nanotechnologies is that of nanofibres, characterised by high specific volume, chemical activity and volume-dependent physical processes. The most promising method of producing nanofibres with various morphologies and functionalities from different materials is electrospinning, where high voltage is applied between the spinneret and the collector to the charged polymer solution (or melt) to draw polymer filaments. This chapter reviews the main electrospinning techniques for producing nanofibres from polymers, provides an overview on the influence of the spinning solution characteristics, the process parameters and the working environment on the process and highlights the many applications of electrospun nanofibres in the field of sensors. Latest advances in this field and the prospects for obtaining new electrospun nanofibre sensors are discussed.

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Section: Electrospun Sensorsmentioning

confidence: 99%

Sensors from Electrospun Nanostructures

Manea¹,

Bertea²

2019

Nanostructures in Energy Generation, Transmission and Storage

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“…MIP techniques typically consist of the polymerization of monomers or polymers in the presence of template molecules and the following generation of functional cavities upon removal of these molecules, thus leaving highly specific active sites [2]. The combination of the excellent selectivity of MIPs due to their recognition properties, like those of natural receptors, and the ability of electrospinning (ES) technology to produce diverse forms of fibrous assemblies with remarkable specific surface area and high porosity [3] enables one to design enhanced sensing platforms taking advantages from both the technologies. This study used the combination of these two technologies to fabricate an innovative, highly specific ES/MIP-based conductive sensor for S(-)-limonene by blending PVP and PAA as carrier polymer and cavity generator, respectively, S(-)-limonene as template molecule and MWCNT as conductive reinforcement.…”

Section: Introductionmentioning

confidence: 99%

UV Light Stereoselective Limonene Sensor Using Electrospun PVP Composite Nanofibers

Macagnano,

Molinari,

Mancini

et al. 2024

Eurosensors 2023

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“…Additionally, electrospinning is adaptable to various deposition substrates, allowing for versatility in sensor design and integration. Furthermore, electrospinning offers a extensive selection of polymers, including eco-friendly materials, thus promoting sustainability in sensor manufacturing processes [36][37][38][39][40]. The nanoscale features of electrospun fibers enable the resulting fibrous fabrics to mimic natural structures like cilia and hair-like protrusions, pivotal in sensing the environment [41,42] and allow the creation of tunable architectures for sensor design.…”

Section: Introductionmentioning

confidence: 99%

Nanofibrous Conductive Sensor for Limonene: One-Step Synthesis via Electrospinning and Molecular Imprinting

Macagnano,

Molinari,

Papa

et al. 2024

Preprint

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Detecting volatile organic compounds (VOCs) emitted from different plant species and their or-gans can provide valuable information about plant health and environmental factors that affect them. For example, limonene emission can be a biomarker to monitor plant health and detect stress. Traditional methods for VOC detection encounter challenges, prompting the proposal of novel approaches. In this study, we proposed integrating electrospinning, molecular imprinting, and conductive nanofibers to fabricate limonene sensors. In detail, polyvinylpyrrolidone (PVP) and polyacrylic acid (PAA) served here as fiber and cavity formers, respectively, with multi-walled carbon nanotubes (MWCNT) enhancing conductivity. We developed one-step monolithic molecularly imprinted fibers, where S(-)-limonene was the target molecule using electrospinning technique. The functional cavities were fixed using UV curing method, followed by a target mol-ecule washing. This procedure enabled the creation of recognition sites for limonene within the nanofiber matrix, enhancing sensor performance and streamlining manufacturing. Humidity was crucial for sensor working, with optimal conditions at about 50% RH. The sensors rapidly re-sponded to S(-)-limonene, reaching a plateau within 200 seconds. Enhancing fiber density im-proved sensor performance, resulting in a lower limit of detection (LOD) of 137 ppb. However, excessive fiber density decreased accessibility to active sites, thus reducing sensitivity. Remarka-bly, the thinnest mat on the fibrous sensors created provided the highest selectivity to limonene (Selectivity Index: 72%) compared to other VOCs, such as EtOH (used as a solvent in nanofiber development), aromatic compounds (toluene), and two other monoterpenes (α-pinene and linalo-ol) with similar structure. These findings underscored the potential of the proposed integrated approach for selective VOC detection in applications such as precision agriculture and environ-mental monitoring.

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Electrospinning for High Performance Sensors

Cited by 41 publications

References 107 publications

Sensors from Electrospun Nanostructures

Sensors from Electrospun Nanostructures

UV Light Stereoselective Limonene Sensor Using Electrospun PVP Composite Nanofibers

Nanofibrous Conductive Sensor for Limonene: One-Step Synthesis via Electrospinning and Molecular Imprinting

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