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Tavoletta I, Arcadio F, Renzullo LP, Oliva G, Del Prete D, Verolla D, Marzano C, Alberti G, Pesavento M, Zeni L, Cennamo N. Splitter-Based Sensors Realized via POFs Coupled by a Micro-Trench Filled with a Molecularly Imprinted Polymer. SENSORS (BASEL, SWITZERLAND) 2024; 24:3928. [PMID: 38931712 PMCID: PMC11207874 DOI: 10.3390/s24123928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 06/13/2024] [Accepted: 06/15/2024] [Indexed: 06/28/2024]
Abstract
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 great interest in different application fields, such as human health and life status monitoring in power transformers. The proposed sensor is realized by using two POFs as segmented waveguides (SW) coupled through a micro-trench milled between the fibers and then filled with a specific MIP for the 2-FAL detection. The experimental results show that the developed intensity-based sensor system is highly selective and sensitive to 2-FAL detection in aqueous solutions, with a limit of detection of about 0.04 mg L-1. The proposed sensing approach is simple and low-cost, and it shows performance comparable to that of plasmonic MIP-based sensors present in the literature for 2-FAL detection.
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Affiliation(s)
- Ines Tavoletta
- Department of Engineering, University of Campania Luigi Vanvitelli, Via Roma 29, 81031 Aversa, Italy; (I.T.); (F.A.); (L.P.R.); (G.O.); (D.D.P.); (D.V.); (C.M.); (L.Z.)
| | - Francesco Arcadio
- Department of Engineering, University of Campania Luigi Vanvitelli, Via Roma 29, 81031 Aversa, Italy; (I.T.); (F.A.); (L.P.R.); (G.O.); (D.D.P.); (D.V.); (C.M.); (L.Z.)
| | - Luca Pasquale Renzullo
- Department of Engineering, University of Campania Luigi Vanvitelli, Via Roma 29, 81031 Aversa, Italy; (I.T.); (F.A.); (L.P.R.); (G.O.); (D.D.P.); (D.V.); (C.M.); (L.Z.)
| | - Giuseppe Oliva
- Department of Engineering, University of Campania Luigi Vanvitelli, Via Roma 29, 81031 Aversa, Italy; (I.T.); (F.A.); (L.P.R.); (G.O.); (D.D.P.); (D.V.); (C.M.); (L.Z.)
| | - Domenico Del Prete
- Department of Engineering, University of Campania Luigi Vanvitelli, Via Roma 29, 81031 Aversa, Italy; (I.T.); (F.A.); (L.P.R.); (G.O.); (D.D.P.); (D.V.); (C.M.); (L.Z.)
| | - Debora Verolla
- Department of Engineering, University of Campania Luigi Vanvitelli, Via Roma 29, 81031 Aversa, Italy; (I.T.); (F.A.); (L.P.R.); (G.O.); (D.D.P.); (D.V.); (C.M.); (L.Z.)
| | - Chiara Marzano
- Department of Engineering, University of Campania Luigi Vanvitelli, Via Roma 29, 81031 Aversa, Italy; (I.T.); (F.A.); (L.P.R.); (G.O.); (D.D.P.); (D.V.); (C.M.); (L.Z.)
| | - Giancarla Alberti
- Department of Chemistry, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy; (G.A.); (M.P.)
| | - Maria Pesavento
- Department of Chemistry, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy; (G.A.); (M.P.)
| | - Luigi Zeni
- Department of Engineering, University of Campania Luigi Vanvitelli, Via Roma 29, 81031 Aversa, Italy; (I.T.); (F.A.); (L.P.R.); (G.O.); (D.D.P.); (D.V.); (C.M.); (L.Z.)
| | - Nunzio Cennamo
- Department of Engineering, University of Campania Luigi Vanvitelli, Via Roma 29, 81031 Aversa, Italy; (I.T.); (F.A.); (L.P.R.); (G.O.); (D.D.P.); (D.V.); (C.M.); (L.Z.)
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2
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De Vito S, Del Giudice A, Di Francia G. Electric Transmission and Distribution Network Air Pollution. SENSORS (BASEL, SWITZERLAND) 2024; 24:587. [PMID: 38257682 PMCID: PMC10818988 DOI: 10.3390/s24020587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 01/10/2024] [Accepted: 01/13/2024] [Indexed: 01/24/2024]
Abstract
There is a consensus within the scientific community regarding the effects on the environment, health, and climate of the use of renewable energy sources, which is characterized by a rate of harmful polluting emissions that is significantly lower than that typical of fossil fuels. On the other hand, this transition towards the use of more sustainable energy sources will also be characterized by an increasingly widespread electrification rate. In this work, we want to discuss whether electricity distribution and transmission networks and their main components are characterized by emissions that are potentially harmful to the environment and human health during their operational life. We will see that the scientific literature on this issue is rather limited, at least until now. However, conditions are reported in which the network directly causes or at least promotes the emissions of polluting substances into the environment. For the most part, the emissions recorded, rather than their environmental or human health impacts, are studied as part of the implementation of techniques for the early determination of faults in the network. It is probable that with the increasing electrification of energy consumption, the problem reported here will become increasingly relevant.
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Affiliation(s)
| | | | - Girolamo Di Francia
- ENEA—Italian National Agency for New Technologies, Energy and Sustainable Economic Development, P.le E. Fermi, 1, 80055 Napoli, Italy; (S.D.V.); (A.D.G.)
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3
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Park H, Kim E, Jun T, Pyo SH, Kim SH. Colorimetric Detection of Furfural with Enhanced Visible Absorption of Furfural-DNPH in Basic Conditions. ACS OMEGA 2024; 9:2519-2527. [PMID: 38250383 PMCID: PMC10795146 DOI: 10.1021/acsomega.3c07025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 12/04/2023] [Accepted: 12/14/2023] [Indexed: 01/23/2024]
Abstract
Furfural is an intermediary toxic aldehyde compound produced during heat-induced food processing and storage. Furfural is also formed by the degradation of cellulosic insulation in oil-immersed electric potential transformers, whose level is an important indicator of aging for replacement. In this study, we report a new means to detect the trace level of furfural in a colorimetric manner. Furfural is reacted with dinitrophenylhydrazine (DNPH) in acid solutions. The colorless furfural-DNPH compound turns orange-colored as the solution changes to basic. The delocalization of the π-electron in the DNPH-aldehyde derivatives at the basic condition causes the shift of the absorption peak from 318 to 470 nm, which renders the solution orange-colored. The color and absorbance are saturated in 20 min of incubation. There is high linearity between the absorbance and the concentration of furfural in the range of 0-0.2 mM, which enables the quantitative detection of furfural. The limit of detection is estimated to be as low as 1.76 μM for the absorbance analysis and 10 μM for the naked eyes. The colorimetric assay protocol is applicable to the detection of various aromatic aldehydes, which show strong π-electron delocalization and is not applicable to aliphatic aldehydes due to lack of delocalization. This simple assay can be conducted in typical 96-well microplates using a microplate reader, which provides a low-cost and high-throughput screening. Therefore, we believe that our method is potentially applicable for the quantitative detection of aromatic aldehydes in various samples from foods, electronic devices, and so on.
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Affiliation(s)
- Hyunjoo Park
- Korea
Electric Power Research Institute, 105 Munji-Ro, Yuseong-Gu, Daejeon 34056, Republic of Korea
- Department
of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, 291 Yuseong-Gu, Daehak-Ro, Daejeon 34141, Republic of Korea
| | - Eunyoung Kim
- Korea
Electric Power Research Institute, 105 Munji-Ro, Yuseong-Gu, Daejeon 34056, Republic of Korea
| | - Taehyun Jun
- Korea
Electric Power Research Institute, 105 Munji-Ro, Yuseong-Gu, Daejeon 34056, Republic of Korea
| | - Sang-Hyun Pyo
- Biotechnology,
Department of Chemistry, Lund University, SE-22100 Lund, Sweden
| | - Shin-Hyun Kim
- Department
of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, 291 Yuseong-Gu, Daehak-Ro, Daejeon 34141, Republic of Korea
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4
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Ramajayam K, Ganesan S, Ramesh P, Beena M, Kokulnathan T, Palaniappan A. Molecularly Imprinted Polymer-Based Biomimetic Systems for Sensing Environmental Contaminants, Biomarkers, and Bioimaging Applications. Biomimetics (Basel) 2023; 8:245. [PMID: 37366840 DOI: 10.3390/biomimetics8020245] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/20/2023] [Accepted: 06/02/2023] [Indexed: 06/28/2023] Open
Abstract
Molecularly imprinted polymers (MIPs), a biomimetic artificial receptor system inspired by the human body's antibody-antigen reactions, have gained significant attraction in the area of sensor development applications, especially in the areas of medical, pharmaceutical, food quality control, and the environment. MIPs are found to enhance the sensitivity and specificity of typical optical and electrochemical sensors severalfold with their precise binding to the analytes of choice. In this review, different polymerization chemistries, strategies used in the synthesis of MIPs, and various factors influencing the imprinting parameters to achieve high-performing MIPs are explained in depth. This review also highlights the recent developments in the field, such as MIP-based nanocomposites through nanoscale imprinting, MIP-based thin layers through surface imprinting, and other latest advancements in the sensor field. Furthermore, the role of MIPs in enhancing the sensitivity and specificity of sensors, especially optical and electrochemical sensors, is elaborated. In the later part of the review, applications of MIP-based optical and electrochemical sensors for the detection of biomarkers, enzymes, bacteria, viruses, and various emerging micropollutants like pharmaceutical drugs, pesticides, and heavy metal ions are discussed in detail. Finally, MIP's role in bioimaging applications is elucidated with a critical assessment of the future research directions for MIP-based biomimetic systems.
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Affiliation(s)
- Kalaipriya Ramajayam
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
- Centre for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
| | - Selvaganapathy Ganesan
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
- Centre for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
| | - Purnimajayasree Ramesh
- Centre for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
- School of Biosciences and Technology, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
| | - Maya Beena
- Centre for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
- School of Biosciences and Technology, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
| | - Thangavelu Kokulnathan
- Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei 106, Taiwan
| | - Arunkumar Palaniappan
- Centre for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
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5
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Alberti G, Arcadio F, Pesavento M, Marzano C, Zeni L, Zeid NA, Cennamo N. Detection of 2-Furaldehyde in Milk by MIP-Based POF Chips Combined with an SPR-POF Sensor. SENSORS (BASEL, SWITZERLAND) 2022; 22:8289. [PMID: 36365986 PMCID: PMC9654890 DOI: 10.3390/s22218289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 10/25/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
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 orthogonal micro-holes containing a specific molecularly imprinted polymer (MIP). This POF-MIP chemical chip modifies the surface plasmon resonance (SPR) phenomena excited in another sensor chip realized in POFs (SPR-POF) and connected in series. The proposed sensor configuration exploits MIP receptors avoiding any modification of the gold film of the SPR platform. This work reports the performance, particularly the high sensitivity and low detection limit, in complex matrices such as buffalo milk fortified with 2-FAL and in different commercial kinds of cow milk thermally treated for pasteurization. The measurements were carried out in about ten minutes by dropping the solution under-test on the planar D-shaped POF surface of the chemical chip. In contrast, on the gold surface of the SPR-POF platform, a water drop is always placed to excite the SPR phenomenon, which is modulated by the chemical chip via MIP-2-FAL binding. Furthermore, the experimental results demonstrated the pros and cons of the proposed sensor system. Thanks to the high sensitivity of the sensor system, the detection of 2-FAL in the diluted milk sample (1:50) was achieved. The dilution is required to reduce the interferent effect of the complex matrix.
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Affiliation(s)
- Giancarla Alberti
- Department of Chemistry, University of Pavia, Via Taramelli n.12, 27100 Pavia, Italy
| | - Francesco Arcadio
- Department of Engineering, University of Campania Luigi Vanvitelli, Via Roma n.29, 81031 Aversa, Italy
| | - Maria Pesavento
- Department of Chemistry, University of Pavia, Via Taramelli n.12, 27100 Pavia, Italy
| | - Chiara Marzano
- Department of Engineering, University of Campania Luigi Vanvitelli, Via Roma n.29, 81031 Aversa, Italy
| | - Luigi Zeni
- Department of Engineering, University of Campania Luigi Vanvitelli, Via Roma n.29, 81031 Aversa, Italy
| | - Naji Abi Zeid
- Industrial Research Institute, Lebanese University Campus Hadath, Baabda 2806, Lebanon
| | - Nunzio Cennamo
- Department of Engineering, University of Campania Luigi Vanvitelli, Via Roma n.29, 81031 Aversa, Italy
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6
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Cennamo N, Arcadio F, Seggio M, Maniglio D, Zeni L, Bossi AM. Spoon-shaped polymer waveguides to excite multiple plasmonic phenomena: A multisensor based on antibody and molecularly imprinted nanoparticles to detect albumin concentrations over eight orders of magnitude. Biosens Bioelectron 2022; 217:114707. [PMID: 36116224 DOI: 10.1016/j.bios.2022.114707] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 08/13/2022] [Accepted: 09/06/2022] [Indexed: 11/18/2022]
Abstract
A polymeric multimode waveguide, characterized by a pioneering spoon-shaped geometry, was herein proposed for the first time to devise Surface Plasmon Resonance (SPR) biochemical sensors. The plasmon excitation was enabled by layering a gold nanofilm of ∼60 nm onto the spoon-waveguide. As a consequence of the waveguide's extra-ordinary geometry, two distinct sensing regions were identified: a planar one, located on the spoon's neck, and a concave one on the bowl, with angled surfaces. The bulk sensitivity (Sn) is correlated both to the way the light was launched in/collected from the sensor (parallel or orthogonal to the main axis of the waveguide) and to the sensing area interrogated (planar-neck or angled-bowl), indicating that the sensor's performance can be conveniently tuned, depending on the chosen measuring configuration. The SPR sensor's characterization showed Sn equal to 750 nm/RIU for the neck and to 950 nm/RIU for the bowl. To further inspect the peculiar sensing-features and assess the application niches, the spoon-shaped waveguide was functionalized with two kinds of receptors, both specific for human serum albumin (HSA): an antibody on the bowl region (high Sn); molecularly imprinted nanoparticles (nanoMIPs) on the neck region (low Sn). The experimental results showed a limit of detection (LOD) for the immune-sensor of 280 pM and an LOD for the nanoMIP-sensor of 4.16 fM. The overall response of the HSA multi-sensor encompassed eight orders of magnitude, suggesting that the spoon-shaped waveguide's provides multi-scale detection and holds potential to devise multi-analyte sensing platforms.
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Affiliation(s)
- Nunzio Cennamo
- University of Campania Luigi Vanvitelli, Department of Engineering, Via Roma 29, 81031, Aversa, Italy
| | - Francesco Arcadio
- University of Campania Luigi Vanvitelli, Department of Engineering, Via Roma 29, 81031, Aversa, Italy
| | - Mimimorena Seggio
- University of Verona, Department of Biotechnology, Strada Le Grazie 15, 37134, Verona, Italy
| | - Devid Maniglio
- University of Trento, Department of Industrial Engineering, Via Sommarive 9, 38123, Trento, Italy
| | - Luigi Zeni
- University of Campania Luigi Vanvitelli, Department of Engineering, Via Roma 29, 81031, Aversa, Italy
| | - Alessandra Maria Bossi
- University of Verona, Department of Biotechnology, Strada Le Grazie 15, 37134, Verona, Italy.
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7
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Fu X, Yang K, Liu M, Xing T, Wu C. LightFD: Real-Time Fault Diagnosis with Edge Intelligence for Power Transformers. SENSORS 2022; 22:s22145296. [PMID: 35890976 PMCID: PMC9322841 DOI: 10.3390/s22145296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/07/2022] [Accepted: 07/12/2022] [Indexed: 12/04/2022]
Abstract
Power fault monitoring based on acoustic waves has gained a great deal of attention in industry. Existing methods for fault diagnosis typically collect sound signals on site and transmit them to a back-end server for analysis, which may fail to provide a real-time response due to transmission packet loss and latency. However, the limited computing power of edge devices and the existing methods for feature extraction pose a significant challenge to performing diagnosis on the edge. In this paper, we propose a fast Lightweight Fault Diagnosis method for power transformers, referred to as LightFD, which integrates several technical components. Firstly, before feature extraction, we design an asymmetric Hamming-cosine window function to reduce signal spectrum leakage and ensure data integrity. Secondly, we design a multidimensional spatio-temporal feature extraction method to extract acoustic features. Finally, we design a parallel dual-layer, dual-channel lightweight neural network to realize the classification of different fault types on edge devices with limited computing power. Extensive simulation and experimental results show that the diagnostic precision and recall of LightFD reach 94.64% and 95.33%, which represent an improvement of 4% and 1.6% over the traditional SVM method, respectively.
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Affiliation(s)
- Xinhua Fu
- School of Information Science and Technology, Northwest University, Xi’an 710100, China;
| | - Kejun Yang
- Anhui Nanrui Jiyuan Electricity Grid Technical Co., Ltd., Hefei 230088, China;
| | - Min Liu
- Anhui Zhongke Haoyin Intelligent Technology Co., Ltd., Hefei 230000, China;
| | - Tianzhang Xing
- School of Information Science and Technology, Northwest University, Xi’an 710100, China;
- Correspondence: (T.X.); (C.W.)
| | - Chase Wu
- Department of Computer Science, New Jersey Institute of Technology, Newark, NJ 07102, USA
- Correspondence: (T.X.); (C.W.)
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8
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Yang W, Ma Y, Sun H, Huang C, Shen X. Molecularly Imprinted Polymers Based Optical Fiber Sensors: A Review. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116608] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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9
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Monsalve-Atencio R, Montaño DF, Contreras-Calderón J. Molecular imprinting technology and poly (ionic liquid)s: Promising tools with industrial application for the removal of acrylamide and furanic compounds from coffee and other foods. Crit Rev Food Sci Nutr 2022; 63:6820-6839. [PMID: 35170386 DOI: 10.1080/10408398.2022.2038078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Coffee is one of the most consumed beverages in the world. Coffee provides to the consumer special sensorial characteristics, can help to prevent diseases, improves physical performance and increases focus. In contrast, coffee consumption supplies a significant source of substances with carcinogenic and genotoxic potential such as furan, hydroxymethylfurfural (HMF), furfural (F), and acrylamide (AA). The present review addresses the issues around the presence of such toxic substances formed in Maillard reaction (MR) during thermal treatments in food processing, from chemical and, toxicological perspectives, occurrences in coffee and other foods processed by heating. In addition, current strategies advantages and disadvantages are presented along with application of molecular imprinting technology (MIT) and poly (ionic liquid) s (PIL) as an alternative to reduce the furan, HMF, F and AA content in coffee and other foods.
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Affiliation(s)
- Robinson Monsalve-Atencio
- Bioali Research Group, Food Department, Faculty of Pharmaceutical and Food Sciences, University of Antioquia, Medellín, Colombia
| | - Diego F Montaño
- Department of Chemistry, Faculty of Basic Sciences, University of Pamplona, Pamplona, Norte de Santander, Colombia
| | - José Contreras-Calderón
- Bioali Research Group, Food Department, Faculty of Pharmaceutical and Food Sciences, University of Antioquia, Medellín, Colombia
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10
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Preparation of a Molecularly Imprinted Film on Quartz Crystal Microbalance Chip for Determination of Furanic Compounds. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9120338] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The structural preferences of furanic compounds were studied using a combination of a molecularly imprinted film (MIF) on a piezoelectric-quartz chip. The furanic compounds and their derivatives were used as the templates. Owing to their similar heterocyclic structures, it is difficult to verify the structural differences between the templates. Therefore, a new cross-linker (Methacr-l-Cys-NHBn)2, was employed to generate a platform on a quartz crystal microbalance (QCM) chip. The cross-linker self-assembled to link the surface of the chip to copolymerize with other functional monomers. A layered film with chiral hydrophobicity and rigidity was thus fabricated. Subsequently, Acr-l-Ser-NHBn was utilized as a chiral monomer to construct MIF on a QCM chip. Forcomparison, we synthesized a more hydrophobic monomer, Methacr-l-Ser-NHBn, to enhance the binding ability of the MIF. The QCM flow injection system was handled in an organic solvent system. The proportion of the monomers was adjusted to optimize the recognition ability of these films. As the binding ability of the MIF toward model templates and structurally-related furanic compounds was improved, a MIF derived from 2-furaldehyde (FUL) achieved a lower detection limit (10 ng/mL). The binding properties of MIFs prepared against furanic compounds exhibited strong similarities to the binding properties of other compounds with heterocyclic ring structures. For example, 2-furaldehyde is very similar to 2-formylthiazole, 2-acetylfuran is similar to 2-acetylthiazole, and 2-furfuryl alcohol is similar to imidazole-2-methanol. Such recognition ability can help distinguish between the structural counterparts of other small heterocyclic compounds.
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11
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Kadhem AJ, Gentile GJ, Fidalgo de Cortalezzi MM. Molecularly Imprinted Polymers (MIPs) in Sensors for Environmental and Biomedical Applications: A Review. Molecules 2021; 26:6233. [PMID: 34684813 PMCID: PMC8540986 DOI: 10.3390/molecules26206233] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 10/06/2021] [Accepted: 10/12/2021] [Indexed: 01/30/2023] Open
Abstract
Molecular imprinted polymers are custom made materials with specific recognition sites for a target molecule. Their specificity and the variety of materials and physical shapes in which they can be fabricated make them ideal components for sensing platforms. Despite their excellent properties, MIP-based sensors have rarely left the academic laboratory environment. This work presents a comprehensive review of recent reports in the environmental and biomedical fields, with a focus on electrochemical and optical signaling mechanisms. The discussion aims to identify knowledge gaps that hinder the translation of MIP-based technology from research laboratories to commercialization.
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Affiliation(s)
- Abbas J. Kadhem
- Department of Civil and Environmental Engineering, University of Missouri, E2509 Lafferre Hall, Columbia, MO 65211, USA;
| | - Guillermina J. Gentile
- Department of Chemical Engineering, Instituto Tecnológico de Buenos Aires, Lavardén 315, Buenos Aires C1437FBG, Argentina;
| | - Maria M. Fidalgo de Cortalezzi
- Department of Civil and Environmental Engineering, University of Missouri, E2509 Lafferre Hall, Columbia, MO 65211, USA;
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12
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Liu L, Deng S, Zheng J, Yuan L, Deng H, Teng C. An Enhanced Plastic Optical Fiber-Based Surface Plasmon Resonance Sensor with a Double-Sided Polished Structure. SENSORS 2021; 21:s21041516. [PMID: 33671630 PMCID: PMC7926450 DOI: 10.3390/s21041516] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 02/15/2021] [Accepted: 02/18/2021] [Indexed: 11/25/2022]
Abstract
An enhanced plastic optical fiber (POF)-based surface plasmon resonance (SPR) sensor is proposed by employing a double-sided polished structure. The sensor is fabricated by polishing two sides of the POF symmetrically along with the fiber axis, and a layer of Au film is deposited on each side of the polished region. The SPR can be excited on both polished surfaces with Au film coating, and the number of light reflections will be increased by using this structure. The simulation and experimental results show that the proposed sensor has an enhanced SPR effect. The visibility and full width at half maximum (FWHM) of spectrum can be improved for the high measured refractive index (RI). A sensitivity of 4284.8 nm/RIU is obtained for the double-sided POF-based SPR sensor when the measured liquid RI is 1.42. The proposed SPR sensor is easy fabrication and low cost, which can provide a larger measurement range and action area to the measured samples, and it has potential application prospects in the oil industry and biochemical sensing fields.
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Affiliation(s)
- Lian Liu
- Guangxi Key Laboratory of Optoelectronic Information Processing, Guilin University of Electronic Technology, Guilin 541004, China; (L.L.); (S.D.); (L.Y.); (H.D.)
| | - Shijie Deng
- Guangxi Key Laboratory of Optoelectronic Information Processing, Guilin University of Electronic Technology, Guilin 541004, China; (L.L.); (S.D.); (L.Y.); (H.D.)
| | - Jie Zheng
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China;
| | - Libo Yuan
- Guangxi Key Laboratory of Optoelectronic Information Processing, Guilin University of Electronic Technology, Guilin 541004, China; (L.L.); (S.D.); (L.Y.); (H.D.)
| | - Hongchang Deng
- Guangxi Key Laboratory of Optoelectronic Information Processing, Guilin University of Electronic Technology, Guilin 541004, China; (L.L.); (S.D.); (L.Y.); (H.D.)
| | - Chuanxin Teng
- Guangxi Key Laboratory of Optoelectronic Information Processing, Guilin University of Electronic Technology, Guilin 541004, China; (L.L.); (S.D.); (L.Y.); (H.D.)
- Correspondence: ; Tel.: +86-0773-2290-083
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13
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Pesavento M, Merli D, Biesuz R, Alberti G, Marchetti S, Milanese C. A MIP-based low-cost electrochemical sensor for 2-furaldehyde detection in beverages. Anal Chim Acta 2021; 1142:201-210. [PMID: 33280698 DOI: 10.1016/j.aca.2020.10.059] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 09/25/2020] [Accepted: 10/28/2020] [Indexed: 01/03/2023]
Abstract
There is an increasing interest in determining the concentration of furanic compounds naturally formed in food aqueous matrices, by in situ, fast and low-cost methods. A sensor presenting such characteristics is here proposed, and characterized. It is based on a molecularly imprinted polymer (MIP) as a receptor with electrochemical transduction on a screen printed cell (SPC). The molecularly imprinted polymer has been developed for a particular furanic derivative, 2-furaldehyde (2-FAL). The detection bases on the reduction of 2-FAL selectively adsorbed on the polymer layer in contact with the working electrode. The polymer layer is simply formed by in situ polymerization, directly over the SPC and it was characterized by IR, SEM and electrochemical methods. Even if based on an easy and fast preparation procedure, the layer sufficiently adheres to the cell surface giving a reusable sensor. Square wave voltammetry (SWV) was applied as the signal acquisition method. The sensor performance in aqueous solution (NaCl 0.1 M) was tested, obtaining that the dose-response curve is fitted by the Langmuir adsorption isotherm. The sensitivity, and so the limit of detection, were noticeably improved by a chemometric approach based on the Design of experiment method. (optimized conditions: Estep = 0.03 V, Epulse = 0.066 V, f = 31 s-1). In water solution at pH around neutrality the dynamic range was from about 50 μM to 20 mM. Similar results were obtained for a white wine containing 12% ethanol, which has been considered as a typical example of beverage possibly containing furhaldehydes. The higher limit of quantification can be modulated by the amount of MIP deposited, while the lower detection limit by the conditions of the electrochemical measurement.
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Affiliation(s)
- M Pesavento
- Department of Chemistry, University of Pavia, Italy.
| | - D Merli
- Department of Chemistry, University of Pavia, Italy
| | - R Biesuz
- Department of Chemistry, University of Pavia, Italy
| | - G Alberti
- Department of Chemistry, University of Pavia, Italy
| | - S Marchetti
- Department of Chemistry, University of Pavia, Italy
| | - C Milanese
- Department of Chemistry, University of Pavia, Italy
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14
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Abstract
Diagnostic and condition monitoring of power transformers are key actions to guarantee their safe operation. The subsequent benefits include reduced service interruptions and economic losses associated with their unavailability. Conventional test methods developed for the condition assessment of power transformers have certain limitations. To overcome such problems, fiber optic-based sensors for monitoring the condition of transformers have been developed. Flawlessly built-up fiber optic-based sensors provide online and offline assessment of various parameters like temperature, moisture, partial discharges, gas analyses, vibration, winding deformation, and oil levels, which are based on different sensing principles. In this paper a variety and assessment of different fiber optic-based diagnostic techniques for monitoring power transformers are discussed. It includes significant tutorial elements as well as some analyses.
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15
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pH-sensitive fluorescent organic nanoparticles: Off-on fluorescent detection of furfural in transformer oil. Talanta 2019; 197:383-389. [DOI: 10.1016/j.talanta.2019.01.053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 01/09/2019] [Accepted: 01/13/2019] [Indexed: 12/20/2022]
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16
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Pesavento M, Marchetti S, De Maria L, Zeni L, Cennamo N. Sensing by Molecularly Imprinted Polymer: Evaluation of the Binding Properties with Different Techniques. SENSORS 2019; 19:s19061344. [PMID: 30889872 PMCID: PMC6470915 DOI: 10.3390/s19061344] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 03/08/2019] [Accepted: 03/12/2019] [Indexed: 02/06/2023]
Abstract
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, considering two kinds of sensors, based respectively on electrochemical and surface plasmon resonance (SPR) transduction. As a proof of principle, the considered MIP was obtained by non-covalent molecular imprinting of 2-furaldehyde (2-FAL). It has been found that different concentration ranges of 2-FAL in aqueous matrices can be measured by the two sensing methods. The SPR sensor responds in a concentration range from 1 × 10−4 M down to about 1 × 10−7 M, while the electrochemical sensor from about 5 × 10−6 M up to about 9 × 10−3 M. The binding isotherms have been fit to the Langmuir adsorption model, in order to evaluate the association constant. Three kinds of sites with different affinity for 2-FAL have been detected. The sites at low affinity are similar to the interaction sites of the corresponding NIP since they have a similar association constant. This is near to the affinity evaluated by batch equilibration too. The same association constant has been evaluated in the same concentration range. The sensing methods have been demonstrated to be very convenient for the characterization of the binding properties of MIP in comparison to the batch equilibration, in terms of reproducibility and low amount of material required for the investigation.
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Affiliation(s)
- Maria Pesavento
- Department of Chemistry, University of Pavia, 27100 Pavia PV, Italy.
| | - Simone Marchetti
- Department of Chemistry, University of Pavia, 27100 Pavia PV, Italy.
| | | | - Luigi Zeni
- Department of Engineering, University of Campania Luigi Vanvitelli, 81031 Aversa, Italy.
| | - Nunzio Cennamo
- Department of Engineering, University of Campania Luigi Vanvitelli, 81031 Aversa, Italy.
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17
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Novel Simulation Technique of Electromagnetic Wave Propagation in the Ultra High Frequency Range within Power Transformers. SENSORS 2018; 18:s18124236. [PMID: 30513874 PMCID: PMC6308964 DOI: 10.3390/s18124236] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 11/24/2018] [Accepted: 11/27/2018] [Indexed: 11/16/2022]
Abstract
Diagnoses of power transformers by partial discharge (PD) measurement are effective to prevent dielectric failures of the apparatus. Ultra-high frequency (UHF) method has recently received attention due to its various advantages, such as the robustness against external noise and the capability of PD localization. However, electromagnetic (EM) waves radiated from PD tend to suffer attenuation before arriving at UHF sensors, because active part of the transformer disturbs the EM wave propagation. In some cases, that results in poor detection sensitivity. To understand propagation and attenuation characteristics of EM waves and to evaluate the detection sensitivity quantitatively, a computational approach to simulate the EM wave propagation is important. Although many previous researches have dealt with EM wave simulation for transformers, validations of those simulations by comparing with the experimental ones have seldom been reported. In this paper, cumulative energies, signal amplitudes and propagation times of EM waves were measured using a 630 kVA transformer. EM wave propagation was computed using the time-domain finite integration technique and the results were compared with the experimentally obtained ones. These simulation results showed good agreement with the experimental ones. The results can serve as guidelines to improve the efficiency of UHF PD detection and offer the possibility to achieve optimal placement of UHF sensors in power transformers.
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18
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A Molecularly Imprinted Polymer on a Plasmonic Plastic Optical Fiber to Detect Perfluorinated Compounds in Water. SENSORS 2018; 18:s18061836. [PMID: 29874860 PMCID: PMC6021968 DOI: 10.3390/s18061836] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 06/04/2018] [Accepted: 06/04/2018] [Indexed: 12/14/2022]
Abstract
A novel Molecularly Imprinted Polymer (MIP) able to bind perfluorinated compounds, combined with a surface plasmon resonance (SPR) optical fiber platform, is presented. The new MIP receptor has been deposited on a D-shaped plastic optical fiber (POF) covered with a photoresist buffer layer and a thin gold film. The experimental results have shown that the developed SPR-POF-MIP sensor makes it possible to selectively detect the above compounds. In this work, we present the results obtained with perfluorooctanoate (PFOA) compound, and they hold true when obtained with a perfluorinated alkylated substances (PFAs) mixture sample. The sensor’s response is the same for PFOA, perfluorooctanesulfonate (PFOS) or PFA contaminants in the C4–C11 range. We have also tested a sensor based on a non-imprinted polymer (NIP) on the same SPR in a D-shaped POF platform. The limit of detection (LOD) of the developed chemical sensor was 0.13 ppb. It is similar to the one obtained by the configuration based on a specific antibody for PFOA/PFOS exploiting the same SPR-POF platform, already reported in literature. The advantage of an MIP receptor is that it presents a better stability out of the native environment, very good reproducibility, low cost and, furthermore, it can be directly deposited on the gold layer, without modifying the metal surface by functionalizing procedures.
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Rivero PJ, Goicoechea J, Arregui FJ. Optical Fiber Sensors Based on Polymeric Sensitive Coatings. Polymers (Basel) 2018; 10:E280. [PMID: 30966315 PMCID: PMC6414912 DOI: 10.3390/polym10030280] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 03/04/2018] [Accepted: 03/05/2018] [Indexed: 12/26/2022] Open
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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Affiliation(s)
- Pedro J Rivero
- Materials Engineering Laboratory, Department of Mechanical, Energy and Materials Engineering, Public University of Navarre, Campus Arrosadía S/N, 31006 Pamplona, Spain.
| | - Javier Goicoechea
- Nanostructured Optical Devices Laboratory, Department of Electrical and Electronic Engineering, Public University of Navarre, Campus Arrosadía S/N, 31006 Pamplona, Spain.
| | - Francisco J Arregui
- Nanostructured Optical Devices Laboratory, Department of Electrical and Electronic Engineering, Public University of Navarre, Campus Arrosadía S/N, 31006 Pamplona, Spain.
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20
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Ahari H, Hedayati M, Akbari-adergani B, Kakoolaki S, Hosseini H, Anvar A. Staphylococcus aureus exotoxin detection using potentiometric nanobiosensor for microbial electrode approach with the effects of pH and temperature. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2017. [DOI: 10.1080/10942912.2017.1347944] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Hamed Ahari
- Assistant Professor, Department of Food Science and Technology, Tehran Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Mehdi Hedayati
- Cellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences
| | - Behrouz Akbari-adergani
- Food and Drug Laboratory Research Center, Food and Drug Organization, Ministry of Health and Medical Education, Tehran, Iran
| | - Shapour Kakoolaki
- Agricultural Research, Education and Extension Organization (AREEO), Iranian Fisheries Science Research Institute, Tehran, Iran
| | - Hedayat Hosseini
- Department of Food Sciences and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Amirali Anvar
- Assistant Professor, Department of Food Science and Technology, Tehran Science and Research Branch, Islamic Azad University, Tehran, Iran
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21
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Pesavento M, De Maria L, Merli D, Marchetti S, Zeni L, Cennamo N. Towards the development of cascaded surface plasmon resonance POF sensors exploiting gold films and synthetic recognition elements for detection of contaminants in transformer oil. SENSING AND BIO-SENSING RESEARCH 2017. [DOI: 10.1016/j.sbsr.2017.01.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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22
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Rico-Yuste A, González-Vallejo V, Benito-Peña E, de las Casas Engel T, Orellana G, Moreno-Bondi MC. Furfural Determination with Disposable Polymer Films and Smartphone-Based Colorimetry for Beer Freshness Assessment. Anal Chem 2016; 88:3959-66. [DOI: 10.1021/acs.analchem.6b00167] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alberto Rico-Yuste
- Department of Analytical Chemistry and ‡Department of
Organic Chemistry,
Faculty of Chemistry, Complutense University of Madrid, Ciudad Universitaria
s/n, 28040 Madrid, Spain
| | - Victoria González-Vallejo
- Department of Analytical Chemistry and ‡Department of
Organic Chemistry,
Faculty of Chemistry, Complutense University of Madrid, Ciudad Universitaria
s/n, 28040 Madrid, Spain
| | - Elena Benito-Peña
- Department of Analytical Chemistry and ‡Department of
Organic Chemistry,
Faculty of Chemistry, Complutense University of Madrid, Ciudad Universitaria
s/n, 28040 Madrid, Spain
| | - Tomás de las Casas Engel
- Department of Analytical Chemistry and ‡Department of
Organic Chemistry,
Faculty of Chemistry, Complutense University of Madrid, Ciudad Universitaria
s/n, 28040 Madrid, Spain
| | - Guillermo Orellana
- Department of Analytical Chemistry and ‡Department of
Organic Chemistry,
Faculty of Chemistry, Complutense University of Madrid, Ciudad Universitaria
s/n, 28040 Madrid, Spain
| | - María Cruz Moreno-Bondi
- Department of Analytical Chemistry and ‡Department of
Organic Chemistry,
Faculty of Chemistry, Complutense University of Madrid, Ciudad Universitaria
s/n, 28040 Madrid, Spain
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23
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Cennamo N, Chiavaioli F, Trono C, Tombelli S, Giannetti A, Baldini F, Zeni L. A Complete Optical Sensor System Based on a POF-SPR Platform and a Thermo-Stabilized Flow Cell for Biochemical Applications. SENSORS 2016; 16:196. [PMID: 26861328 PMCID: PMC4801573 DOI: 10.3390/s16020196] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 01/21/2016] [Accepted: 02/01/2016] [Indexed: 12/13/2022]
Abstract
An optical sensor platform based on surface plasmon resonance (SPR) in a plastic optical fiber (POF) integrated into a thermo-stabilized flow cell for biochemical sensing applications is proposed. This device has been realized and experimentally tested by using a classic receptor-analyte assay. For this purpose, the gold surface of the POF was chemically modified through the formation of a self-assembling monolayer. The surface robustness of the POF-SPR platform has been tested for the first time thanks to the flow cell. The experimental results show that the proposed device can be successfully used for label-free biochemical sensing. The final goal of this work is to achieve a complete, small-size, simple to use and low cost optical sensor system. The whole system with the flow cell and the optical sensor are extensively described, together with the experimental results obtained with an immunoglobulin G (IgG)/anti-IgG assay.
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Affiliation(s)
- Nunzio Cennamo
- Department of Industrial and Information Engineering, Second University of Naples, Via Roma 29, Aversa 81031, Italy.
| | - Francesco Chiavaioli
- Institute of Applied Physics "Nello Carrara", CNR, Via Madonna del Piano 10, Sesto Fiorentino 50019, Italy.
| | - Cosimo Trono
- Institute of Applied Physics "Nello Carrara", CNR, Via Madonna del Piano 10, Sesto Fiorentino 50019, Italy.
| | - Sara Tombelli
- Institute of Applied Physics "Nello Carrara", CNR, Via Madonna del Piano 10, Sesto Fiorentino 50019, Italy.
| | - Ambra Giannetti
- Institute of Applied Physics "Nello Carrara", CNR, Via Madonna del Piano 10, Sesto Fiorentino 50019, Italy.
| | - Francesco Baldini
- Institute of Applied Physics "Nello Carrara", CNR, Via Madonna del Piano 10, Sesto Fiorentino 50019, Italy.
| | - Luigi Zeni
- Department of Industrial and Information Engineering, Second University of Naples, Via Roma 29, Aversa 81031, Italy.
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24
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Effect of Loads and Other Key Factors on Oil-Transformer Ageing: Sustainability Benefits and Challenges. ENERGIES 2015. [DOI: 10.3390/en81012147] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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