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Kaniraja G, Karthikeyan M, Dhinesh Kumar M, Ananthappan P, Arunsunai Kumar K, Shanmugaiah V, Sivasamy Vasantha V, Karunakaran C. Cytochrome c electrochemical detection utilizing molecularly imprinted poly(3, 4-ethylenedioxythiophene) on a disposable screen printed carbon electrode. Anal Biochem 2024; 692:115557. [PMID: 38718955 DOI: 10.1016/j.ab.2024.115557] [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] [Received: 01/23/2024] [Revised: 04/04/2024] [Accepted: 05/06/2024] [Indexed: 05/14/2024]
Abstract
Cytochrome c (cyt c) has been found to play a function in apoptosis in cell-free models. This work presents the creation of molecularly imprinted conducting poly(3, 4-ethylenedioxythiopene) (MIPEDOT) on the surface of a screen printed carbon electrode (SPCE) for cyt c. Cyt c was imprinted by electropolymerization due to the presence of an EDOT monomer hydrophobic functional group on SPCE, using CV to obtain highly selective materials with excellent molecular recognition ability. MIPEDOT was characterized by CV, EIS, and DPV using ferricyanide/ferrocyanide as a redox probe. Further, the characterization of the sensor was accomplished using SEM for surface morphological confirmation. Using CV, the peak current measured at the potential of +1 to -1 V (vs. Ag/AgCl) is linear in the cyt c concentration range from 1 to 1200 pM, showing a remarkably low detection limit of 0.5 pM (sensitivity:0.080 μA pM). Moreover, the applicability of the approach was successfully confirmed with the detection of cyt c in biological samples (human plasma). Similarly, our research has proven a low-cost, simple, and efficient sensing platform for cyt c detection, rendering it a viable tool for the future improvement of reliable and exact non-encroaching cell death detection.
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Affiliation(s)
- Ganesan Kaniraja
- Department of Chemistry, Virudhunagar Hindu Nadars' Senthikumara Nadar College (Autonomous & Affiliated to Madurai Kamaraj University), Virudhunagar, 626 001, Tamil Nadu, India
| | - Murugesan Karthikeyan
- Department of Chemistry, Virudhunagar Hindu Nadars' Senthikumara Nadar College (Autonomous & Affiliated to Madurai Kamaraj University), Virudhunagar, 626 001, Tamil Nadu, India
| | - Marimuthu Dhinesh Kumar
- Department of Chemistry, Virudhunagar Hindu Nadars' Senthikumara Nadar College (Autonomous & Affiliated to Madurai Kamaraj University), Virudhunagar, 626 001, Tamil Nadu, India
| | - Periyasamy Ananthappan
- Department of Natural Products Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, 625 021, Tamil Nadu, India
| | - Karuppiah Arunsunai Kumar
- Department of Chemistry, Virudhunagar Hindu Nadars' Senthikumara Nadar College (Autonomous & Affiliated to Madurai Kamaraj University), Virudhunagar, 626 001, Tamil Nadu, India
| | - Vellasamy Shanmugaiah
- Department of Microbial Technology, School of Biological Science, Madurai Kamaraj University, Madurai, 625 021, Tamil Nadu, India
| | - Vairathevar Sivasamy Vasantha
- Department of Natural Products Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, 625 021, Tamil Nadu, India
| | - Chandran Karunakaran
- Department of Chemistry, Virudhunagar Hindu Nadars' Senthikumara Nadar College (Autonomous & Affiliated to Madurai Kamaraj University), Virudhunagar, 626 001, Tamil Nadu, India.
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Krawczyk S, Golba S, Neves C, Tedim J. Chlorpromazine-Polypyrrole Drug Delivery System Tailored for Neurological Application. Molecules 2024; 29:1531. [PMID: 38611809 PMCID: PMC11013625 DOI: 10.3390/molecules29071531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 03/25/2024] [Accepted: 03/27/2024] [Indexed: 04/14/2024] Open
Abstract
Nowadays, drug delivery systems (DDSs) are gaining more and more attention. Conducting polymers (CPs) are efficiently used for DDS construction as such systems can be used in therapy. In this research, a well-known CP, polypyrrole (PPy), was synthesized in the presence of the polysaccharide heparin (HEP) and chlorpromazine (CPZ) using sodium dodecyl sulfate (SDS) as electrolyte on a steel substrate. The obtained results demonstrate the successful incorporation of CPZ and HEP into the polymer matrix, with the deposited films maintaining stable electrochemical parameters across multiple doping/dedoping cycles. Surface roughness, estimated via AFM analysis, revealed a correlation with layer thickness-decreasing for thinner layers and increasing for thicker ones. Moreover, SEM images revealed a change in the morphology of PPy films when PPy is electropolymerized in the presence of CPZ and HEP, while FTIR confirmed the presence of CPZ and HEP within PPy. Due to its lower molecular mass compared to HEP, CPZ was readily integrated into the thin polymer matrix during deposition, with diffusion being unimpeded, as opposed to films with greater thickness. Finally, the resulting system exhibited the ability to release CPZ, enabling a dosing range of 10 mg to 20 mg per day, effectively covering the therapeutic concentration range.
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Affiliation(s)
- Sara Krawczyk
- Department of Science and Technology, Institute of Materials Engineering, Doctoral School, University of Silesia, Bankowa 14, 40-007 Katowice, Poland
| | - Sylwia Golba
- Department of Science and Technology, Institute of Materials Engineering, Bankowa 14, 40-007 Katowice, Poland
| | - Cristina Neves
- Department of Materials and Ceramic Engineering, Centre for Research in Ceramics and Composite Materials (CICECO), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; (C.N.); (J.T.)
| | - João Tedim
- Department of Materials and Ceramic Engineering, Centre for Research in Ceramics and Composite Materials (CICECO), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; (C.N.); (J.T.)
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Bansal R, Hald N, Martinez R, Chan CK, Westerhoff P, Garcia-Segura S. Self-supported polypyrrole flexible electrodes for electrochemical reduction of nitrite. CHEMOSPHERE 2023; 338:139582. [PMID: 37478997 DOI: 10.1016/j.chemosphere.2023.139582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/07/2023] [Accepted: 07/18/2023] [Indexed: 07/23/2023]
Abstract
The efficiency of an electrochemical oxidation/reduction process strongly depends on the working electrode's surface area to volume ratio. By making electrodes flexible and employing different configurations such as roll-to-roll membrane, the surface area to volume ratio can be enhanced, therefore improving the overall efficiency of electrochemical processes. Conductive polymers emerge as a new framework to enable alternative electrochemical water treatment cell configurations. Self-standing polypyrrole flexible electrodes were synthesized by electropolymerization and evaluated on the treatment of an oxyanion pollutant: nitrite. Mechanical characterization through stress-strain curves and bending tests demonstrated high electrode resilience that sustained over 1000 bending cycles without impacting mechanical integrity or electrocatalytic responses. The electrocatalytic response towards nitrite reduction was assessed under linear scan voltammetry (LSV) and removal performance evaluated under potentiostatic conditions reaching 79% abatement of initial concentrations of nitrite of 15 mg/L [NO2--N]. Self-standing flexible electrodes appear as a novel framework to enable modular compact water treatment unit designs that maximize the electrode area/volume ratio and substitute expensive platinum group metal (PGMs) electrocatalysts.
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Affiliation(s)
- Rishabh Bansal
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT), United States; School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ, 85287-3005, United States
| | - Nessa Hald
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT), United States; School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ, 85287-3005, United States
| | - Roberto Martinez
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT), United States; School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ, 85287-3005, United States
| | - Candace K Chan
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT), United States; School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ, 85287-3005, United States
| | - Paul Westerhoff
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT), United States; School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ, 85287-3005, United States
| | - Sergi Garcia-Segura
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT), United States; School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ, 85287-3005, United States.
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Mazzotta E, Di Giulio T, Mariani S, Corsi M, Malitesta C, Barillaro G. Vapor-Phase Synthesis of Molecularly Imprinted Polymers on Nanostructured Materials at Room-Temperature. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2302274. [PMID: 37222612 DOI: 10.1002/smll.202302274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/27/2023] [Indexed: 05/25/2023]
Abstract
Molecularly imprinted polymers (MIPs) have recently emerged as robust and versatile artificial receptors. MIP synthesis is carried out in liquid phase and optimized on planar surfaces. Application of MIPs to nanostructured materials is challenging due to diffusion-limited transport of monomers within the nanomaterial recesses, especially when the aspect ratio is >10. Here, the room temperature vapor-phase synthesis of MIPs in nanostructured materials is reported. The vapor phase synthesis leverages a >1000-fold increase in the diffusion coefficient of monomers in vapor phase, compared to liquid phase, to relax diffusion-limited transport and enable the controlled synthesis of MIPs also in nanostructures with high aspect ratio. As proof-of-concept application, pyrrole is used as the functional monomer thanks to its large exploitation in MIP preparation; nanostructured porous silicon oxide (PSiO2 ) is chosen to assess the vapor-phase deposition of PPy-based MIP in nanostructures with aspect ratio >100; human hemoglobin (HHb) is selected as the target molecule for the preparation of a MIP-based PSiO2 optical sensor. High sensitivity and selectivity, low detection limit, high stability and reusability are achieved in label-free optical detection of HHb, also in human plasma and artificial serum. The proposed vapor-phase synthesis of MIPs is immediately transferable to other nanomaterials, transducers, and proteins.
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Affiliation(s)
- Elisabetta Mazzotta
- Laboratory of Analytical Chemistry, Department of Biological and Environmental Sciences and Technologies (Di.S.Te.B.A.), University of Salento, via Monteroni, Lecce, 73100, Italy
| | - Tiziano Di Giulio
- Laboratory of Analytical Chemistry, Department of Biological and Environmental Sciences and Technologies (Di.S.Te.B.A.), University of Salento, via Monteroni, Lecce, 73100, Italy
| | - Stefano Mariani
- Information Engineering Department, University of Pisa, via G. Caruso 16, Pisa, 56122, Italy
| | - Martina Corsi
- Information Engineering Department, University of Pisa, via G. Caruso 16, Pisa, 56122, Italy
| | - Cosimino Malitesta
- Laboratory of Analytical Chemistry, Department of Biological and Environmental Sciences and Technologies (Di.S.Te.B.A.), University of Salento, via Monteroni, Lecce, 73100, Italy
| | - Giuseppe Barillaro
- Information Engineering Department, University of Pisa, via G. Caruso 16, Pisa, 56122, Italy
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Valentino M, Imbriano A, Tricase A, Della Pelle F, Compagnone D, Macchia E, Torsi L, Bollella P, Ditaranto N. Electropolymerized molecularly imprinted polypyrrole film for dimethoate sensing: investigation on template removal after the imprinting process. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:1250-1253. [PMID: 36861684 DOI: 10.1039/d2ay02024f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
The development of ultrasensitive analytical detection methods for organophosphorus pesticides such as dimethoate (DMT) plays a key role in healthy food production. DMT is an inhibitor of acetylcholinesterase (AChE), which can lead to the accumulation of acetylcholine and result in symptoms related to the autonomous and central nervous systems. Herein, we report the first spectroscopic and electrochemical study on template removal after an imprinting process from a polypyrrole-based molecularly imprinted polymer (PPy-MIP) film for the detection of DMT. Several template removal procedures were tested and evaluated using X-ray photoelectron spectroscopy. The most effective procedure was achieved in 100 mM NaOH. The proposed DMT PPy-MIP sensor exhibits a limit of detection of (8 ± 2) × 10-12 M.
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Affiliation(s)
- Marlene Valentino
- Department of Chemistry, University of Bari Aldo Moro, Via E. Orabona 4, 70125 Bari, Italy.
| | - Anna Imbriano
- Centre for Colloid and Surface Science, University of Bari Aldo Moro, Via E. Orabona 4, 70125 Bari, Italy
| | - Angelo Tricase
- Department of Chemistry, University of Bari Aldo Moro, Via E. Orabona 4, 70125 Bari, Italy.
- Centre for Colloid and Surface Science, University of Bari Aldo Moro, Via E. Orabona 4, 70125 Bari, Italy
| | - Flavio Della Pelle
- Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Campus "Aurelio Saliceti" Via R. Balzarini 1, 64100 Teramo, Italy
| | - Dario Compagnone
- Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Campus "Aurelio Saliceti" Via R. Balzarini 1, 64100 Teramo, Italy
| | - Eleonora Macchia
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari Aldo Moro, 70125 Bari, Italy
- Faculty of Science and Engineering, Åbo Akademi University, 20500 Turku, Finland
| | - Luisa Torsi
- Department of Chemistry, University of Bari Aldo Moro, Via E. Orabona 4, 70125 Bari, Italy.
- Centre for Colloid and Surface Science, University of Bari Aldo Moro, Via E. Orabona 4, 70125 Bari, Italy
- Faculty of Science and Engineering, Åbo Akademi University, 20500 Turku, Finland
| | - Paolo Bollella
- Department of Chemistry, University of Bari Aldo Moro, Via E. Orabona 4, 70125 Bari, Italy.
- Centre for Colloid and Surface Science, University of Bari Aldo Moro, Via E. Orabona 4, 70125 Bari, Italy
| | - Nicoletta Ditaranto
- Department of Chemistry, University of Bari Aldo Moro, Via E. Orabona 4, 70125 Bari, Italy.
- Centre for Colloid and Surface Science, University of Bari Aldo Moro, Via E. Orabona 4, 70125 Bari, Italy
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The Production and Evaluation of an Electrochemical Sensors for Strychnine and Its Main Metabolite Strychnine N-Oxide for Their Use in Biological Samples. Molecules 2022; 27:molecules27061826. [PMID: 35335189 PMCID: PMC8954432 DOI: 10.3390/molecules27061826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/08/2022] [Accepted: 03/08/2022] [Indexed: 02/04/2023] Open
Abstract
Strychnine (STN) and its major metabolite Strychnine N-Oxide (SNO) were examined electrochemically. Both parent compounds and its major metabolite showed electroactivity on glassy carbon electrodes using CV and DPV techniques. One oxidation peak at 1008 mV was observed for STN with the optimum peak intensity at pH 7. SNO produced two oxidation peaks, at 617 mV and 797 mV, at pH 5. The peaks demonstrated irreversible behaviour and the irreversibility of the system was confirmed at different scan rates. A calibration curve was produced for both CV and DPV measurements and the sensitivity of the proposed EC method was good compared with previous electrochemical and non-electrochemical methods. The precision of oxidation peak of STN using the STN-MIP method produced a maximum value of 11.5% and 2.32% for inter-day and intraday %RSD, respectively. The average% recovery was around 92%. The electrochemical method has been successfully applied to the determination of STN in spiked plasma and urine samples. For SNO, both anodic peaks of SNO demonstrated irreversible behaviour. A different sweep rate was used for calculating the number of ‘transfer electrons’ in the system; based on this, the mechanism of oxidation reaction was proposed. Calibration curves for both oxidative peaks were produced using DPV measurements. The second anodic peak demonstrated high linearity and precision with %RSD < 1.96%.
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7
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El-Sharif HF, Turner NW, Reddy SM, Sullivan MV. Application of thymine-based nucleobase-modified acrylamide as a functional co-monomer in electropolymerised thin-film molecularly imprinted polymer (MIP) for selective protein (haemoglobin) binding. Talanta 2021; 240:123158. [PMID: 34952354 DOI: 10.1016/j.talanta.2021.123158] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 12/16/2021] [Accepted: 12/18/2021] [Indexed: 11/20/2022]
Abstract
Molecularly imprinted polymers (MIPs) are fast becoming alternatives to biological recognition materials, offering robustness and the ability to work in extreme environments. Here, a modified thymine-based nucleobase, with acrylamide at the 5-postion (AA-dT) was used as a co-monomer in the synthesis of a thin-film electropolymerised MIP system for the molecular recognition of the protein haemoglobin. The AA-dT co-monomer incorporated into a N-hydroxymethylacrylamide (NHMAm) MIP offered a two-fold superior binding affinity of the NHMAm only MIP, with KD values of 0.72 μM and 1.67 μM, respectively. A unique AA-dT:NHMAm MIP bilayer was created in an attempt to increase the amount AA-dT incorporated into the film, and this obtained a respectable KD value of 7.03 μM. All MIPs produced excellent selectivity for the target protein and when applied to a sensor platform (Surface Plasma Resonance), the limit of detection for the MIPs is in the nM range (3.87, 3.47, and 3.87 nM, for the NHMAm MIP, AA-dT:NHMAm MIP, and AA-dT:NHMAm MIP bilayer, respectively). The introduction of the modified thymine-based nucleobase offers a promising strategy for improving the properties of a MIP, allowing these MIPs to potentially be a highly robust and selective material for molecular recognition.
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Affiliation(s)
- Hazim F El-Sharif
- Department of Chemistry, School of Natural Sciences, University of Central Lancashire, Preston, PR1 2HE, United Kingdom
| | - Nicholas W Turner
- Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester, LE1 9BH, United Kingdom
| | - Subrayal M Reddy
- Department of Chemistry, School of Natural Sciences, University of Central Lancashire, Preston, PR1 2HE, United Kingdom.
| | - Mark V Sullivan
- Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester, LE1 9BH, United Kingdom.
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Design and application of molecularly imprinted Polypyrrole/Platinum nanoparticles modified platinum sensor for the electrochemical detection of Vardenafil. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106771] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Hammoud A, Chhin D, Nguyen DK, Sawan M. A new molecular imprinted PEDOT glassy carbon electrode for carbamazepine detection. Biosens Bioelectron 2021; 180:113089. [PMID: 33662846 DOI: 10.1016/j.bios.2021.113089] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 02/07/2021] [Accepted: 02/10/2021] [Indexed: 11/17/2022]
Abstract
An electrochemical sensor for the detection of carbamazepine was fabricated by the electropolymerization of PEDOT on glassy carbon electrodes. Molecular imprinted polymer sites were synthesized by cyclic voltammetry on the electrodes' surfaces providing high selectivity and sensitivity towards carbamazepine molecules. Scanning electron microscopy validated the formation of the polymer. Extraction of carbamazepine from the polymer was performed by immersion in acetonitrile and validated by ultraviolet-visible spectroscopy along with cyclic voltammetry experiments comparing pre- and post-template extraction data. Further cyclic voltammetry and square-wave voltammetry tests aided in characterizing the electrodes' response to carbamazepine concentration in PBS solution with [Fe(CN)6]3-/4- as a redox pair/mediator. The limits of detection and quantification were found to be 0.98 x 10-3 M and 2.97 x 10-3 M respectively. The biosensor was highly sensitive to carbamazepine molecules in comparison to non-imprinted electrodes, simple to construct and easy to operate.
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Affiliation(s)
- A Hammoud
- Department of Electrical Engineering, Polytechnique Montréal, Montréal, QC, Canada.
| | - D Chhin
- Département de Chimie, UQAM, Montréal, QC, Canada
| | - D K Nguyen
- Centre Hospitalier de L'Université de Montréal, Université de Montréal, Montréal, QC, Canada
| | - M Sawan
- Department of Electrical Engineering, Polytechnique Montréal, Montréal, QC, Canada; School of Engineering, Westlake University, And Westlake Institute for Advanced Study, Zhejiang, China
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Towards analytical application of electrochromic polypyrrole layers modified by phenothiazine derivatives. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115132] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Wackers G, Cornelis P, Putzeys T, Peeters M, Tack J, Troost F, Doll T, Verhaert N, Wagner P. Electropolymerized Receptor Coatings for the Quantitative Detection of Histamine with a Catheter-Based, Diagnostic Sensor. ACS Sens 2021; 6:100-110. [PMID: 33337133 DOI: 10.1021/acssensors.0c01844] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In this article, we report on the development of a catheter-based, biomimetic sensor as a step toward a minimally invasive diagnostic instrument in the context of functional bowel disorders. Histamine is a key mediator in allergic and inflammatory processes in the small intestines; however, it is a challenge to determine histamine levels at the duodenal mucosa, and classical bioreceptors are unsuitable for use in the digestive medium of bowel fluid. Therefore, we have developed molecularly imprinted polypyrrole coatings for impedimetric sensing electrodes, which enable the quantification of histamine in nondiluted, human bowel fluid in a broad concentration range from 25 nM to 1 μM. The electrodes show negligible cross-sensitivity to histidine as a competitor molecule and, for comparison, we also evaluated the response of nonimprinted and taurine-imprinted polypyrrole to histamine. Furthermore, using equivalent-circuit modeling, we found that the molecular recognition of histamine by polypyrrole primarily increases the resistive component of the electrode-liquid interface while capacitive effects are negligible. The sensor, integrated into a catheter, measures differentially to correct for nonspecific adsorption effects in the complex matrix of bowel fluids, and a single triggering frequency is sufficient to determine histamine concentrations. Together, these features are beneficial for real-time diagnostic tests.
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Affiliation(s)
- Gideon Wackers
- Laboratory for Soft Matter and Biophysics, KU Leuven, Celestijnenlaan 200D, Leuven B-3001, Belgium
| | - Peter Cornelis
- Laboratory for Soft Matter and Biophysics, KU Leuven, Celestijnenlaan 200D, Leuven B-3001, Belgium
| | - Tristan Putzeys
- Laboratory for Soft Matter and Biophysics, KU Leuven, Celestijnenlaan 200D, Leuven B-3001, Belgium
- Research Group Experimental Oto-rhino-laryngology, KU Leuven, O&N II, Herestraat 49, Leuven B-3001, Belgium
| | - Marloes Peeters
- School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, U.K
| | - Jan Tack
- Translational Research in Gastrointestinal Disorders TARGID, KU Leuven, O&N I, Herestraat 49, Leuven B-3000, Belgium
| | - Freddy Troost
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Universiteitsingel 40, ER Maastricht NL-6229, The Netherlands
| | - Theodor Doll
- Institute of AudioNeuroTechnology VIANNA, Hannover Medical School, Stadtfelddamm 34, Hannover D-30625, Germany
| | - Nicolas Verhaert
- Research Group Experimental Oto-rhino-laryngology, KU Leuven, O&N II, Herestraat 49, Leuven B-3001, Belgium
| | - Patrick Wagner
- Laboratory for Soft Matter and Biophysics, KU Leuven, Celestijnenlaan 200D, Leuven B-3001, Belgium
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Ngwanya OW, Ward M, Baker PGL. Molecularly imprinted polypyrrole sensors for the detection of pyrene in aqueous solutions. Electrocatalysis (N Y) 2021. [DOI: 10.1007/s12678-020-00638-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Non-enzymatic lactose molecularly imprinted sensor based on disposable graphite paper electrode. Anal Chim Acta 2020; 1143:53-64. [PMID: 33384130 DOI: 10.1016/j.aca.2020.11.030] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 11/13/2020] [Accepted: 11/23/2020] [Indexed: 01/22/2023]
Abstract
Lactose (LAC) is a disaccharide - major sugar, present in milk and dairy products. LAC content is an important indicator of milk quality and abnormalities in food industries, as well as in human and animal health. The present study reports the development of an innovative imprinted voltammetric sensor for sensitive detection of LAC. The sensor was constructed using electropolymerized pyrrole (Py) molecularly imprinted polymer (MIP) on graphite paper electrode (PE). The MIP film was constructed through the electrosynthesis of polypyrrole (PPy) in the presence of LAC (template molecule) on PE (PPy/PE). To optimize the detection conditions, several factors affecting the PPy/PE sensor performance were assessed by multivariate methods (Plackett-Burman design and central composite design). Under optimized conditions, the proposed analytical method was applied for LAC detection in whole and LAC-free milks, where it demonstrated high sensitivity and selectivity, with two dynamic linear ranges of concentration (1.0-10 nmol L-1 and 25-125 nmol L-1) and a detection limit of 0.88 nmol L-1. The MIP sensor showed selective molecular recognition for LAC in the presence of structurally related molecules. The proposed PPy/PE sensor exhibited good stability, as well as excellent reproducibility and repeatability. Based on the results obtained, the PPy/PE is found to be highly promising for sensitive detection of LAC.
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Feroz M, Vadgama P. Molecular Imprinted Polymer Modified Electrochemical Sensors for Small Drug Analysis: Progress to Practical Application. ELECTROANAL 2020. [DOI: 10.1002/elan.202060276] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Momina Feroz
- Institute of Chemistry University of the Punjab 54590 Lahore Pakistan
| | - Pankaj Vadgama
- School of Engineering and Materials Science Queen Mary University of London Mile End Road London E1 4NS United Kingdom
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Plausinaitis D, Sinkevicius L, Samukaite-Bubniene U, Ratautaite V, Ramanavicius A. Evaluation of electrochemical quartz crystal microbalance based sensor modified by uric acid-imprinted polypyrrole. Talanta 2020; 220:121414. [PMID: 32928426 DOI: 10.1016/j.talanta.2020.121414] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 07/10/2020] [Accepted: 07/14/2020] [Indexed: 01/17/2023]
Abstract
Uric acid-imprinted polypyrrole-based (MIP(UA)-Ppy) electrochemical quartz crystal microbalance sensor (EQCM) was developed. Experiments and theoretical calculations were focused on molecular interactions between uric acid molecule and: i) polypyrrole imprinted by uric acid (MIP(UA)-Ppy) ii) polypyrrole film without any molecular imprints (NIP-Ppy). Resonant frequency differences during electrochemical deposition of MIP(UA)-Ppy and NIP-Ppy films were observed and were attributed to the phenomenon of molecule capture within formed Ppy matrix. EQCM-resonators modified by MIP-Ppy showed the following advantages: selectivity, qualitative response, cost-effectiveness, and simple procedure. The selectivity of MIP(UA)-Ppy was tested by the replacement of uric acid in the PBS solution with several different concentrations of caffeine and glucose. Langmuir isotherm based molecular adsorption model was applied to evaluate the interaction of MIP(UA)-Ppy with uric acid. From experimental results calculated the standard Gibbs free energy of association (ΔGa) of uric acid with MIP(UA)-Ppy is -16.4 ± 2.05 kJ/mol and with NIP-Ppy is -13.3 ± 8.56 kJ/mol ΔG values illustrate that the formation of uric acid complex with MIP(UA)-Ppy is thermodynamically more favourable than that for complexation with NIP-Ppy.
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Affiliation(s)
- Deivis Plausinaitis
- Vilnius University, Faculty of Chemistry and Geosciences, Institute of Chemistry, Department of Physical Chemistry, Naugarduko str. 24, LT-03225, Vilnius, Lithuania
| | - Linas Sinkevicius
- Vilnius University, Faculty of Chemistry and Geosciences, Institute of Chemistry, Department of Physical Chemistry, Naugarduko str. 24, LT-03225, Vilnius, Lithuania
| | - Urte Samukaite-Bubniene
- Vilnius University, Faculty of Chemistry and Geosciences, Institute of Chemistry, Department of Physical Chemistry, Naugarduko str. 24, LT-03225, Vilnius, Lithuania; NanoTechnas - Center of Nanotechnology and Materials Science at Vilnius University, Faculty of Chemistry and Geosciences, Naugarduko str. 24, LT-03225, Vilnius, Lithuania; State Research Institute Centre for Physical Sciences and Technology, Department of Functional Materials and Electronics, Sauletekio ave. 3, Vilnius, Lithuania
| | - Vilma Ratautaite
- Vilnius University, Faculty of Chemistry and Geosciences, Institute of Chemistry, Department of Physical Chemistry, Naugarduko str. 24, LT-03225, Vilnius, Lithuania; State Research Institute Centre for Physical Sciences and Technology, Department of Functional Materials and Electronics, Sauletekio ave. 3, Vilnius, Lithuania
| | - Arunas Ramanavicius
- Vilnius University, Faculty of Chemistry and Geosciences, Institute of Chemistry, Department of Physical Chemistry, Naugarduko str. 24, LT-03225, Vilnius, Lithuania; NanoTechnas - Center of Nanotechnology and Materials Science at Vilnius University, Faculty of Chemistry and Geosciences, Naugarduko str. 24, LT-03225, Vilnius, Lithuania; State Research Institute Centre for Physical Sciences and Technology, Department of Functional Materials and Electronics, Sauletekio ave. 3, Vilnius, Lithuania.
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Khan M, Shaik MR, Adil SF, Kuniyil M, Ashraf M, Frerichs H, Sarif MA, Siddiqui MRH, Al-Warthan A, Labis JP, Islam MS, Tremel W, Tahir MN. Facile synthesis of Pd@graphene nanocomposites with enhanced catalytic activity towards Suzuki coupling reaction. Sci Rep 2020; 10:11728. [PMID: 32678111 PMCID: PMC7366662 DOI: 10.1038/s41598-020-68124-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 05/07/2020] [Indexed: 12/02/2022] Open
Abstract
A facile and chemical specific method to synthesize highly reduced graphene oxide (HRG) and Pd (HRG@Pd) nanocomposite is presented. The HRG surfaces are tailored with amine groups using 1-aminopyrene (1-AP) as functionalizing molecules. The aromatic rings of 1-AP sit on the basal planes of HRG through π-π interactions, leaving amino groups outwards (similar like self-assembled monolayer on 2D substrates). The amino groups provide the chemically specific binding sites to the Pd nucleation which subsequently grow into nanoparticles. HRG@Pd nanocomposite demonstrated both uniform distribution of Pd nanoparticles on HRG surface as well as excellent physical stability and dispersibility. The surface functionalization was confirmed using, ultraviolet-visible (UV-Vis), Fourier transform infra-red and Raman spectroscopy. The size and distribution of Pd nanoparticles on the HRG and crystallinity were confirmed using high-resolution transmission electron microscopy and powder X-ray diffraction and X-ray photoelectron spectroscopy. The catalytic efficiency of highly reduced graphene oxide-pyrene-palladium nanocomposite (HRG-Py-Pd) is tested towards the Suzuki coupling reactions of various aryl halides. The kinetics of the catalytic reaction (Suzuki coupling) using HRG-Py-Pd nanocomposite was monitored using gas chromatography (GC).
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Affiliation(s)
- Mujeeb Khan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia.
| | - Mohammed Rafi Shaik
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Syed Farooq Adil
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Mufsir Kuniyil
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia
- Department of Chemistry, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur, Andhra Pradesh, 522502, India
| | - Muhammad Ashraf
- Department of Chemistry, King Fahd University of Petroleum and Minerals, P.O. Box 5048, Dhahran, 31261, Kingdom of Saudi Arabia
| | - Hajo Frerichs
- Institut für Anorganische Chemie Und Analytische Chemie, Johannes Gutenberg-Universität, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Massih Ahmad Sarif
- Institut für Anorganische Chemie Und Analytische Chemie, Johannes Gutenberg-Universität, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Mohammed Rafiq H Siddiqui
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Abdulrahman Al-Warthan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Joselito P Labis
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Mohammad Shahidul Islam
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Wolfgang Tremel
- Institut für Anorganische Chemie Und Analytische Chemie, Johannes Gutenberg-Universität, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Muhammad Nawaz Tahir
- Department of Chemistry, King Fahd University of Petroleum and Minerals, P.O. Box 5048, Dhahran, 31261, Kingdom of Saudi Arabia.
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A new molecularly imprinted polymer for selective extraction and pre‐concentration of guaifenesin in different samples: Adsorption studies and kinetic modeling. J Sep Sci 2020; 43:1164-1172. [DOI: 10.1002/jssc.201900940] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 12/18/2019] [Accepted: 12/23/2019] [Indexed: 01/20/2023]
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18
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Sadriu I, Bouden S, Nicolle J, Podvorica FI, Bertagna V, Berho C, Amalric L, Vautrin-Ul C. Molecularly imprinted polymer modified glassy carbon electrodes for the electrochemical analysis of isoproturon in water. Talanta 2020; 207:120222. [DOI: 10.1016/j.talanta.2019.120222] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 08/01/2019] [Accepted: 08/02/2019] [Indexed: 01/06/2023]
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19
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Senel M, Dervisevic M, Esser L, Dervisevic E, Dyson J, Easton CD, Cadarso VJ, Voelcker NH. Enhanced electrochemical sensing performance by in situ electrocopolymerization of pyrrole and thiophene-grafted chitosan. Int J Biol Macromol 2020; 143:582-593. [DOI: 10.1016/j.ijbiomac.2019.12.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 11/25/2019] [Accepted: 12/02/2019] [Indexed: 12/30/2022]
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20
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Karabiberoğlu ŞU, Koçak ÇC, Dursun Z. An over-oxidized poly(Rutin) modified electrode for selective and sensitive determination of catechol and hydroquinone. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113415] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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21
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Mathieu-Scheers E, Bouden S, Grillot C, Nicolle J, Warmont F, Bertagna V, Cagnon B, Vautrin-Ul C. Trace anthracene electrochemical detection based on electropolymerized-molecularly imprinted polypyrrole modified glassy carbon electrode. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113253] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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22
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Raman and XPS studies of ammonia sensitive polypyrrole nanorods and nanoparticles. Sci Rep 2019; 9:8465. [PMID: 31186461 PMCID: PMC6559985 DOI: 10.1038/s41598-019-44900-1] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 05/28/2019] [Indexed: 11/23/2022] Open
Abstract
Polypyrrole (PPy) nanorods (NRs) and nanoparticles (NPs) are synthesized via electrochemical and chemical methods, respectively, and tested upon ammonia exposure using Raman and X-ray photoelectron spectroscopy (XPS). Characterization of both nanomaterials via Raman spectroscopy demonstrates the formation of PPy, displaying vibration bands consistent with the literature. Additionally, XPS reveals the presence of neutral PPy species as major components in PPy NRs and PPy NPs, and other species including polarons and bipolarons. Raman and XPS analysis after ammonia exposure show changes in the physical/chemical properties of PPy, confirming the potential of both samples for ammonia sensing. Results demonstrate that the electrochemically synthesized NRs involve both proton and electron transfer mechanisms during ammonia exposure, as opposed to the chemically synthesized NPs, which show a mechanism dominated by electron transfer. Thus, the different detection mechanisms in PPy NRs and PPy NPs appear to be connected to the particular morphological and chemical composition of each film. These results contribute to elucidate the mechanisms involved in ammonia detection and the influence of the synthesis routes and the physical/chemical characteristics of PPy.
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El Guerraf A, Aouzal Z, Bouabdallaoui M, Ben Jadi S, El Jaouhari A, Wang R, Bazzaoui M, Bazzaoui E. Electrochemically roughened silver surface versus fractal leaf-shaped silver crystals for surface-enhanced Raman scattering investigation of polypyrrole. J Solid State Electrochem 2019. [DOI: 10.1007/s10008-019-04288-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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24
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Sangiorgi N, Sangiorgi A, Tarterini F, Sanson A. Molecularly imprinted polypyrrole counter electrode for gel-state dye-sensitized solar cells. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.03.059] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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25
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Crapnell RD, Hudson A, Foster CW, Eersels K, Grinsven BV, Cleij TJ, Banks CE, Peeters M. Recent Advances in Electrosynthesized Molecularly Imprinted Polymer Sensing Platforms for Bioanalyte Detection. SENSORS (BASEL, SWITZERLAND) 2019; 19:E1204. [PMID: 30857285 PMCID: PMC6427210 DOI: 10.3390/s19051204] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 03/04/2019] [Accepted: 03/05/2019] [Indexed: 01/06/2023]
Abstract
The accurate detection of biological materials has remained at the forefront of scientific research for decades. This includes the detection of molecules, proteins, and bacteria. Biomimetic sensors look to replicate the sensitive and selective mechanisms that are found in biological systems and incorporate these properties into functional sensing platforms. Molecularly imprinted polymers (MIPs) are synthetic receptors that can form high affinity binding sites complementary to the specific analyte of interest. They utilise the shape, size, and functionality to produce sensitive and selective recognition of target analytes. One route of synthesizing MIPs is through electropolymerization, utilising predominantly constant potential methods or cyclic voltammetry. This methodology allows for the formation of a polymer directly onto the surface of a transducer. The thickness, morphology, and topography of the films can be manipulated specifically for each template. Recently, numerous reviews have been published in the production and sensing applications of MIPs; however, there are few reports on the use of electrosynthesized MIPs (eMIPs). The number of publications and citations utilising eMIPs is increasing each year, with a review produced on the topic in 2012. This review will primarily focus on advancements from 2012 in the use of eMIPs in sensing platforms for the detection of biologically relevant materials, including the development of increased polymer layer dimensions for whole bacteria detection and the use of mixed monomer compositions to increase selectivity toward analytes.
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Affiliation(s)
- Robert D Crapnell
- Faculty of Science & Engineering, Div. of Chemistry & Environmental Science, Manchester Metropolitan University, John Dalton Building, Chester Street, Manchester M1 5GD, UK.
| | - Alexander Hudson
- Faculty of Science & Engineering, Div. of Chemistry & Environmental Science, Manchester Metropolitan University, John Dalton Building, Chester Street, Manchester M1 5GD, UK.
| | - Christopher W Foster
- Faculty of Science & Engineering, Div. of Chemistry & Environmental Science, Manchester Metropolitan University, John Dalton Building, Chester Street, Manchester M1 5GD, UK.
| | - Kasper Eersels
- Sensor Engineering, Faculty of Science and Engineering, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands.
| | - Bart van Grinsven
- Sensor Engineering, Faculty of Science and Engineering, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands.
| | - Thomas J Cleij
- Sensor Engineering, Faculty of Science and Engineering, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands.
| | - Craig E Banks
- Faculty of Science & Engineering, Div. of Chemistry & Environmental Science, Manchester Metropolitan University, John Dalton Building, Chester Street, Manchester M1 5GD, UK.
| | - Marloes Peeters
- Faculty of Science & Engineering, Div. of Chemistry & Environmental Science, Manchester Metropolitan University, John Dalton Building, Chester Street, Manchester M1 5GD, UK.
- School of Engineering, Newcastle University, Newcastle Upon Tyne NE1 7RU, UK.
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26
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Qader B, Baron M, Hussain I, Sevilla J, Johnson RP, Gonzalez-Rodriguez J. Electrochemical determination of disulfoton using a molecularly imprinted poly-phenol polymer. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.10.127] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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27
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Anantha-Iyengar G, Shanmugasundaram K, Nallal M, Lee KP, Whitcombe MJ, Lakshmi D, Sai-Anand G. Functionalized conjugated polymers for sensing and molecular imprinting applications. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2018.08.001] [Citation(s) in RCA: 129] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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28
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Tuning the structure of three dimensional nanostructured molybdenum disulfide/nitrogen-doped carbon composite for high lithium storage. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.08.148] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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29
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Baek IH, Han HS, Baik S, Helms V, Kim Y. Detection of Acidic Pharmaceutical Compounds Using Virus-Based Molecularly Imprinted Polymers. Polymers (Basel) 2018; 10:polym10090974. [PMID: 30960899 PMCID: PMC6403656 DOI: 10.3390/polym10090974] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 08/26/2018] [Accepted: 08/28/2018] [Indexed: 11/30/2022] Open
Abstract
Molecularly imprinted polymers (MIPs) have proven to be particularly effective chemical probes for the molecular recognition of proteins, DNA, and viruses. Here, we started from a filamentous bacteriophage to synthesize a multi-functionalized MIP for detecting the acidic pharmaceutic clofibric acid (CA) as a chemical pollutant. Adsorption and quartz crystal microbalance with dissipation monitoring experiments showed that the phage-functionalized MIP had a good binding affinity for CA, compared with the non-imprinted polymer and MIP. In addition, the reusability of the phage-functionalized MIP was demonstrated for at least five repeated cycles, without significant loss in the binding activity. The results indicate that the exposed amino acids of the phage, together with the polymer matrix, create functional binding cavities that provide higher affinity to acidic pharmaceutical compounds.
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Affiliation(s)
- In-Hyuk Baek
- Environmental Safety Group, Korea Institute of Science & Technology Europe GmbH, 66123 Saarbrücken, Germany.
- Center for Bioinformatics, Saarland University, 66123 Saarbrücken, Germany.
| | - Hyung-Seop Han
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, B4495 Oxford, UK.
| | - Seungyun Baik
- Environmental Safety Group, Korea Institute of Science & Technology Europe GmbH, 66123 Saarbrücken, Germany.
| | - Volkhard Helms
- Center for Bioinformatics, Saarland University, 66123 Saarbrücken, Germany.
| | - Youngjun Kim
- Environmental Safety Group, Korea Institute of Science & Technology Europe GmbH, 66123 Saarbrücken, Germany.
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30
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Qader B, Baron M, Hussain I, Gonzalez-Rodriguez J. Electrochemical determination of 2-isopropoxyphenol in glassy carbon and molecularly imprinted poly-pyrrole electrodes. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2017.11.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Molecularly imprinted electrochemical sensor, formed on Ag screen-printed electrodes, for the enantioselective recognition of d and l phenylalanine. Biosens Bioelectron 2018; 105:143-150. [DOI: 10.1016/j.bios.2018.01.010] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 01/01/2018] [Accepted: 01/05/2018] [Indexed: 02/01/2023]
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Tran VC, Sahoo S, Hwang J, Nguyen VQ, Shim JJ. Poly(aniline‑co‑pyrrole)-spaced graphene aerogel for advanced supercapacitor electrodes. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.01.011] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Santos ART, Moreira FTC, Helguero LA, Sales MGF. Antibody Biomimetic Material Made of Pyrrole for CA 15-3 and Its Application as Sensing Material in Ion-Selective Electrodes for Potentiometric Detection. BIOSENSORS 2018; 8:E8. [PMID: 29351206 PMCID: PMC5872056 DOI: 10.3390/bios8010008] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Revised: 01/05/2018] [Accepted: 01/10/2018] [Indexed: 01/15/2023]
Abstract
This work reports a very simple approach for creating a synthetic antibody against any protein of interest and its application in potentiometric transduction. The selected protein was Breast Cancer Antigen (CA 15-3), which is implicated in breast cancer disease and used to follow-up breast cancer patients during treatment. The new material with antibody-like properties was obtained by molecular-imprinting technology, prepared by electropolymerizing pyrrol (Py, 5.0 × 10-3 mol/L) around Breast Cancer Antigen (CA 15-3) (100 U/mL) on a fluorine doped tin oxide (FTO) conductive glass support. Cyclic voltammetry was employed for this purpose. All solutions were prepared in 4-(2-Hydroxyethyl)-1-piperazineethanesulfonic acid (HEPES) buffer, of pH 6.5. The biomarker was removed from the imprinted sites by chemical action of ethanol. The biomimetic material was then included in poly vinyl chloride (PVC) plasticized membranes to act as potentiometric ionophore, having or not a lipophilic ionic additive added. The corresponding selective electrodes were evaluated by calibration curves (in buffer and in synthetic serum) and by selectivity testing. The best analytical performance was obtained by selective electrodes including the plastic antibody and no lipophilic additive. The average limits of detection were 1.07 U/mL of CA 15-3, with a linear response from 1.44 to 13.2 U/mL and a cationic slope of 44.5 mV/decade. Overall, the lipophilic additives yielded no advantage to the overall potentiometric performance. The application of the MIP-based electrodes to the analysis of spiked synthetic serum showed precise and accurate results.
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Affiliation(s)
- Alexandra R T Santos
- BioMark/CINTESIS@ISEP, Instituto Superior de Engenharia do Instituto Politécnico do Porto, 4249-015 Porto, Portugal.
- Departamento de Ciências Médicas, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
| | - Felismina T C Moreira
- BioMark/CINTESIS@ISEP, Instituto Superior de Engenharia do Instituto Politécnico do Porto, 4249-015 Porto, Portugal.
| | - Luísa A Helguero
- Departamento de Ciências Médicas, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
| | - M Goreti F Sales
- BioMark/CINTESIS@ISEP, Instituto Superior de Engenharia do Instituto Politécnico do Porto, 4249-015 Porto, Portugal.
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Tung J, Ching JY, Ng YM, Tew LS, Khung YL. Grafting of Ring-Opened Cyclopropylamine Thin Films on Silicon (100) Hydride via UV Photoionization. ACS APPLIED MATERIALS & INTERFACES 2017; 9:31083-31094. [PMID: 28832115 DOI: 10.1021/acsami.7b08343] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The grafting of cyclopropylamine onto a silicon (100) hydride (Si-H) surface via a ring-opening mechanism using UV photoionization is described here. In brief, radicals generated from the Si-H surface upon UV irradiation were found to behave in classical hydrogen abstraction theory manner by which the distal amine group was first hydrogen abstracted and the radical propagated down to the cyclopropane moiety. This subsequently liberated the strained bonds of the cyclopropane group and initiated the surface grafting process, producing a thin film approximately 10-15 nm in height. Contact angle measurements also showed that such photoionization irradiation had yielded an extremely hydrophilic surface (∼21.3°) and X-ray photoelectron spectroscopy also confirmed the coupling was through the Si-C linkage. However, when the surface underwent high-temperature hydrosilylation (>160 °C), the reaction proceeded predominantly through the nucleophilic NH2 group to form a Si-N linkage to the surface. This rendered the surface hydrophobic and hence suggested that the Si-H homolysis model may not be the main process. To the best of our knowledge, this was the first attempt reported in the literature to use photoionization to directly graft cyclopropylamine onto a silicon surface and in due course generate a highly rich NH-terminated surface that was found to be highly bioactive in promoting cell viability on the basis of 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide studies.
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Affiliation(s)
- J Tung
- College of Arts and Sciences, University of North Carolina (UNC) at Chapel Hill , Chapel Hill, North Carolina 27514, United States
| | - J Y Ching
- Institute of New Drug Development, China Medical University , No. 91 Hsueh-Shih Road, Taichung 40402, Taiwan, Republic of China
| | - Y M Ng
- Advanced Medical and Dental Institute (AMDI), Universiti Sains Malaysia , 13200 Kepala Batas, Pulau Pinang, Malaysia
| | - L S Tew
- Advanced Medical and Dental Institute (AMDI), Universiti Sains Malaysia , 13200 Kepala Batas, Pulau Pinang, Malaysia
| | - Y L Khung
- Institute of New Drug Development, China Medical University , No. 91 Hsueh-Shih Road, Taichung 40402, Taiwan, Republic of China
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Coupled electrochemical-chemical procedure used in construction of molecularly imprinted polymer-based electrode: a highly sensitive impedimetric melamine sensor. J Solid State Electrochem 2017. [DOI: 10.1007/s10008-017-3731-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Bouabdallaoui M, Aouzal Z, Ben Jadi S, El Jaouhari A, Bazzaoui M, Lévi G, Aubard J, Bazzaoui EA. X-ray photoelectron and in situ and ex situ resonance Raman spectroscopic investigations of polythiophene overoxidation. J Solid State Electrochem 2017. [DOI: 10.1007/s10008-017-3698-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Selectivity and Efficiency of Conductive Molecularly Imprinted Polymer (c-MIP) Based on 5-Phenyl-Dipyrromethane and 5-Phenol-Dipyrromethane for Quorum Sensing Precursors Detection. CHEMOSENSORS 2017. [DOI: 10.3390/chemosensors5010005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Usha SP, Shrivastav AM, Gupta BD. A contemporary approach for design and characterization of fiber-optic-cortisol sensor tailoring LMR and ZnO/PPY molecularly imprinted film. Biosens Bioelectron 2017; 87:178-186. [DOI: 10.1016/j.bios.2016.08.040] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 08/03/2016] [Accepted: 08/13/2016] [Indexed: 01/20/2023]
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Karabiberoğlu ŞU, Dursun Z. Over-Oxidized Poly (Phenol Red) Film Modified Glassy Carbon Electrode for Anodic Stripping Voltammetric Determination of Ultra-Trace Antimony (III). ELECTROANAL 2016. [DOI: 10.1002/elan.201600629] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Zekerya Dursun
- Ege University; Faculty of Science; Department of Chemistry; 35100 Bornova, İzmir Turkey
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Kubo T, Otsuka K. Recent progress for the selective pharmaceutical analyses using molecularly imprinted adsorbents and their related techniques: A review. J Pharm Biomed Anal 2016; 130:68-80. [DOI: 10.1016/j.jpba.2016.05.044] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 05/23/2016] [Accepted: 05/24/2016] [Indexed: 10/21/2022]
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Wang RZ, Huang DL, Liu YG, Peng ZW, Zeng GM, Lai C, Xu P, Huang C, Zhang C, Gong XM. Selective removal of BPA from aqueous solution using molecularly imprinted polymers based on magnetic graphene oxide. RSC Adv 2016. [DOI: 10.1039/c6ra21148h] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Schematic of MMIPs for BPA recognition.
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