Maria Pesavento
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View article: High sensitive optical-chemical sensors based on optical fibers in a reflection scheme combined with C-shaped waveguides of MIP-microbeads
High sensitive optical-chemical sensors based on optical fibers in a reflection scheme combined with C-shaped waveguides of MIP-microbeads Open
In order to monitor analytes in liquid matrices, optical fiber probes in reflection mode can be exploited in several application fields. This work presents a novel sensing approach based on C-shaped waveguides obtained by filling PVC C-sha…
View article: An Extrinsic Optical Fiber Sensor Probe with Micrometer Size via a C-Shaped Waveguide with a Core of MIP
An Extrinsic Optical Fiber Sensor Probe with Micrometer Size via a C-Shaped Waveguide with a Core of MIP Open
Optical–chemical sensors based on optical fibers can be made in reflection or transmission schemes. In the reflection scheme, the sensing area is typically present at the end of the fiber, and the light source and the detector are placed o…
View article: Silica Optical Fibers Connected via a Micro MIP-Core Waveguide to Build Optical-Chemical Sensors
Silica Optical Fibers Connected via a Micro MIP-Core Waveguide to Build Optical-Chemical Sensors Open
Molecularly imprinted polymers (MIPs) can be combined with optical fibers (OFs) to create various sensor configurations, yielding low-cost and highly sensitive extrinsic and intrinsic sensors. In this work, an MIP-based extrinsic optical f…
View article: An Attomolar-Level Optical Device for Monitoring Receptor–Analyte Interactions Without Functionalization Steps: A Case Study of Cytokine Detection
An Attomolar-Level Optical Device for Monitoring Receptor–Analyte Interactions Without Functionalization Steps: A Case Study of Cytokine Detection Open
A plastic optical fiber (POF)-based device for biosensing strategies has been developed to monitor several protein–protein interactions at ultra-low concentrations without functionalization processes, exploiting plasmonic phenomena. In thi…
View article: An Optical Device Based on a Chemical Chip and Surface Plasmon Platform for 2-Furaldehyde Detection in Insulating Oil
An Optical Device Based on a Chemical Chip and Surface Plasmon Platform for 2-Furaldehyde Detection in Insulating Oil Open
2-Furaldehyde (2-FAL) is one of the main by-products of the degradation of hemicellulose, which is the solid material of the oil–paper insulating system of oil-filled transformers. For this reason, it has been suggested as a marker of the …
View article: Plasmonic Optical Fiber Sensors and Molecularly Imprinted Polymers for Glyphosate Detection at an Ultra-Wide Range
Plasmonic Optical Fiber Sensors and Molecularly Imprinted Polymers for Glyphosate Detection at an Ultra-Wide Range Open
In this study, a surface plasmon resonance (SPR) sensor based on modified plastic optical fibers (POFs) was combined with a specific molecularly imprinted polymer (MIP), used as a synthetic receptor, for glyphosate (GLY) determination in a…
View article: Splitter-Based Sensors Realized via POFs Coupled by a Micro-Trench Filled with a Molecularly Imprinted Polymer
Splitter-Based Sensors Realized via POFs Coupled by a Micro-Trench Filled with a Molecularly Imprinted Polymer Open
An optical–chemical sensor based on two modified plastic optical fibers (POFs) and a molecularly imprinted polymer (MIP) is realized and tested for the detection of 2-furaldehyde (2-FAL). The 2-FAL measurement is a scientific topic of grea…
View article: Advances in plastic optical fiber bio/chemical sensors to realize point-of-care-tests
Advances in plastic optical fiber bio/chemical sensors to realize point-of-care-tests Open
The characteristics of Plastic Optical Fibers (POFs) are exploited to realize simple, highly sensitive, and low-cost bio/chemical sensors via innovative schemes. The POF's multimode characteristic and the simple modification processes are …
View article: Plasmonic sensor combined with a microcuvette device for monitoring molecule binding processes at ultra-low concentrations
Plasmonic sensor combined with a microcuvette device for monitoring molecule binding processes at ultra-low concentrations Open
A novel sensing strategy is presented to monitor receptor-target pair interactions at ultra-low concentrations without functionalization processes. The biosensing is made by a sensitive chip and a surface plasmon resonance (SPR) probe conn…
View article: MIP-Assisted 3-Hole POF Chip Faced with SPR-POF Sensor for Glyphosate Detection
MIP-Assisted 3-Hole POF Chip Faced with SPR-POF Sensor for Glyphosate Detection Open
The present study proposes the application of a recently developed optical–chemical sensor system to glyphosate detection. The device probes the refractive index variation in a chip based on a plastic optical fiber (POF) in which three ort…
View article: Detection of 2-Furaldehyde in Milk by MIP-Based POF Chips Combined with an SPR-POF Sensor
Detection of 2-Furaldehyde in Milk by MIP-Based POF Chips Combined with an SPR-POF Sensor Open
An innovative optical-chemical sensor has been used to detect the 2-furaldehyde (2-FAL) in milk. The proposed sensing approach exploits the refractive index changing in a microstructured chip based on a plastic optical fiber (POF) with ort…
View article: An Optical Fiber Sensor for Uranium Detection in Water
An Optical Fiber Sensor for Uranium Detection in Water Open
An optical sensor for uranyl has been prepared based on a gold-plated D-shaped plastic optical fiber (POF) combined with a receptor consisting of a bifunctional synthetic molecule, 11-mercaptoundecylphosphonic acid (MUPA), with a phosphoni…
View article: An Optical Fiber Sensor System for Uranium Detection in Water
An Optical Fiber Sensor System for Uranium Detection in Water Open
A simple to realize optical fiber sensor specific for uranium(VI) detection in water is reported to demonstrate the sensing approach’s capability to determine uranyl (UO22+) in water solution in the ppb range. The proposed sensor was…
View article: A Molecularly Imprinted Polymer Based SPR Sensor for 2-Furaldehyde Determination in Oil Matrices
A Molecularly Imprinted Polymer Based SPR Sensor for 2-Furaldehyde Determination in Oil Matrices Open
Optical chemosensors with surface plasmon resonance (SPR) transduction are widely employed, even in complex environments, such as those outside the laboratory. In this context, not only the chemical nature but also the physical form of the…
View article: Optical Chemo-Sensors for Specific Markers in Transformer Insulating Oil Exploiting Molecularly Imprinted Polymers and Plasmonic Optical Fibers
Optical Chemo-Sensors for Specific Markers in Transformer Insulating Oil Exploiting Molecularly Imprinted Polymers and Plasmonic Optical Fibers Open
2-FAL (2-furaldehyde) and furanic derivatives are the main by-products of the thermal degradation of cellulose paper insulation of power transformers’ windings. The detection of these compounds in the insulating oil of transformers i…
View article: SPR-Optical Fiber-Molecularly Imprinted Polymer Sensor for the Detection of Furfural in Wine
SPR-Optical Fiber-Molecularly Imprinted Polymer Sensor for the Detection of Furfural in Wine Open
A surface plasmon resonance (SPR) platform, based on a D-shaped plastic optical fiber (POF), combined with a biomimetic receptor, i.e., a molecularly imprinted polymer (MIP), is proposed to detect furfural (2-furaldheide, 2-FAL) in ferment…
View article: Single Drop Detection of Furfural in Wine by an SPR-Optical Fiber-MIP Based Sensor
Single Drop Detection of Furfural in Wine by an SPR-Optical Fiber-MIP Based Sensor Open
A surface plasmon resonance (SPR) platform, based on a D-shaped plastic optical fiber (POF), combined with a biomimetic receptor, i.e., a molecularly imprinted polymer (MIP), is proposed to detect 2-furaldheide (2-FAL) in fermented beverag…
View article: Sensing of Furfural by Molecularly Imprinted Polymers on Plasmonic and Electrochemical Platforms
Sensing of Furfural by Molecularly Imprinted Polymers on Plasmonic and Electrochemical Platforms Open
The goal of this work is to test the possibility of selective detection of furfural (2-FAL) in aqueous solutions, with a molecularly imprinted polymer (MIP) receptor exploiting two different transduction methods, for food safety applicatio…
View article: An Optical Fiber Chemical Sensor for the Detection of Copper(II) in Drinking Water
An Optical Fiber Chemical Sensor for the Detection of Copper(II) in Drinking Water Open
Highly sensitive plasmonic optical fiber platforms combined with receptors have been recently used to obtain selective sensors. A low-cost configuration can be obtained exploiting a D-shaped plastic optical fiber covered with a multilayer …
View article: Sensing of Copper(II) by Immobilized Ligands: Comparison of Electrochemical and Surface Plasmon Resonance Transduction
Sensing of Copper(II) by Immobilized Ligands: Comparison of Electrochemical and Surface Plasmon Resonance Transduction Open
Two sensors for the detection of the metal ion Cu(II), based on the same sensing layer, are compared. They rely on different transduction methods, i.e., electrochemistry and surface plasmon resonance (SPR). D,L-penicillamine was used as th…
View article: Sensing by Molecularly Imprinted Polymer: Evaluation of the Binding Properties with Different Techniques
Sensing by Molecularly Imprinted Polymer: Evaluation of the Binding Properties with Different Techniques Open
The possibility of investigating the binding properties of the same molecularly imprinted polymer (MIP), most probably heterogeneous, at various concentration levels by different methods such as batch equilibration and sensing, is examined…
View article: SPR Chemosensors Based on D-Shaped POFs and MIPs: Investigation on Optimal Thickness of the Buffer Layer
SPR Chemosensors Based on D-Shaped POFs and MIPs: Investigation on Optimal Thickness of the Buffer Layer Open
A comparative analysis of different optical sensing platforms, designed for chemical applications and based on molecularly imprinted polymers (MIPs), is presented. [...]
View article: Analysis of SPR Sensors in d-Shaped POF Realized by Hand and Mechanical Polishing
Analysis of SPR Sensors in d-Shaped POF Realized by Hand and Mechanical Polishing Open
Optical fiber sensors based on Surface Plasmon Resonance are today widely proposed for applications in different areas of bio-chemical and chemical sensing. [...]
View article: Towards the development of cascaded surface plasmon resonance POF sensors exploiting gold films and synthetic recognition elements for detection of contaminants in transformer oil
Towards the development of cascaded surface plasmon resonance POF sensors exploiting gold films and synthetic recognition elements for detection of contaminants in transformer oil Open
View article: Refractive Index Sensing with D-Shaped Plastic Optical Fibers for Chemical and Biochemical Applications
Refractive Index Sensing with D-Shaped Plastic Optical Fibers for Chemical and Biochemical Applications Open
We report the optimization of the length of a D-shaped plastic optical fiber (POF) sensor for refractive index (RI) sensing from a numerical and experimental point of view. The sensing principle is based on total internal reflection (TIR).…
View article: Optimization of an Evanescent Field Sensor based on D-Shaped Plastic Optical Fiber for Chemical and Biochemical Sensing
Optimization of an Evanescent Field Sensor based on D-Shaped Plastic Optical Fiber for Chemical and Biochemical Sensing Open
The experimental investigations of the performance of a D-shaped Plastic Optical Fiber (POF) sensor are presented. The phenomenon behind this optical fiber sensor based platform is the variation of the transmitted light at the output of th…
View article: Novel Optical Chemical Sensor Based on Molecularly Imprinted Polymer Inside a Trench Micro-machined in Double Plastic Optical Fiber
Novel Optical Chemical Sensor Based on Molecularly Imprinted Polymer Inside a Trench Micro-machined in Double Plastic Optical Fiber Open
For the detection of chemical agents in different environments, the combination of plastic optical fibers (POFs) and molecularly imprinted polymer (MIP) layers has been tested as a way to obtain a low cost, highly selective and sensitive s…
View article: Monitoring of Low Levels of Furfural in Power Transformer Oil with a Sensor System Based on a POF-MIP Platform
Monitoring of Low Levels of Furfural in Power Transformer Oil with a Sensor System Based on a POF-MIP Platform Open
In this work an innovative, miniaturized and low cost optical chemical sensor (POF-MIP platform), based on a molecular imprinted polymer (MIP) and surface plasmon resonance in a plastic optical fiber (POF), is presented and preliminarily t…