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Chino M, La Gatta S, Leone L, De Fenza M, Lombardi A, Pavone V, Maglio O. Dye Decolorization by a Miniaturized Peroxidase Fe-MimochromeVI*a. Int J Mol Sci 2023; 24:11070. [PMID: 37446248 DOI: 10.3390/ijms241311070] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 06/23/2023] [Accepted: 07/01/2023] [Indexed: 07/15/2023] Open
Abstract
Oxidases and peroxidases have found application in the field of chlorine-free organic dye degradation in the paper, toothpaste, and detergent industries. Nevertheless, their widespread use is somehow hindered because of their cost, availability, and batch-to-batch reproducibility. Here, we report the catalytic proficiency of a miniaturized synthetic peroxidase, Fe-Mimochrome VI*a, in the decolorization of four organic dyes, as representatives of either the heterocyclic or triarylmethane class of dyes. Fe-Mimochrome VI*a performed over 130 turnovers in less than five minutes in an aqueous buffer at a neutral pH under mild conditions.
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Affiliation(s)
- Marco Chino
- Department of Chemical Sciences, University of Napoli Federico II, Via Cintia, 80126 Napoli, Italy
| | - Salvatore La Gatta
- Department of Chemical Sciences, University of Napoli Federico II, Via Cintia, 80126 Napoli, Italy
| | - Linda Leone
- Department of Chemical Sciences, University of Napoli Federico II, Via Cintia, 80126 Napoli, Italy
| | - Maria De Fenza
- Department of Chemical Sciences, University of Napoli Federico II, Via Cintia, 80126 Napoli, Italy
| | - Angela Lombardi
- Department of Chemical Sciences, University of Napoli Federico II, Via Cintia, 80126 Napoli, Italy
| | - Vincenzo Pavone
- Department of Chemical Sciences, University of Napoli Federico II, Via Cintia, 80126 Napoli, Italy
| | - Ornella Maglio
- Department of Chemical Sciences, University of Napoli Federico II, Via Cintia, 80126 Napoli, Italy
- Institute of Biostructures and Bioimaging (IBB), National Research Council (CNR), Via Pietro Castellino 111, 80131 Napoli, Italy
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Biocompatible MXene (Ti 3C 2T x) Immobilized with Flavin Adenine Dinucleotide as an Electrochemical Transducer for Hydrogen Peroxide Detection in Ovarian Cancer Cell Lines. MICROMACHINES 2021; 12:mi12080862. [PMID: 34442484 PMCID: PMC8401909 DOI: 10.3390/mi12080862] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 07/10/2021] [Accepted: 07/19/2021] [Indexed: 11/24/2022]
Abstract
Flavin adenine dinucleotide (FAD) is a coenzyme and acts as a redox cofactor in metabolic process. Owing to such problems as poor electron transfer properties, unfavorable adsorption, and lack of stability on rigid electrodes, the bio-electrochemical applications of FAD have been limited. Herein, a novel fabrication method was developed for the immobilization process using 2D MXene (Ti3C2Tx), which enhanced the redox property of FAD and improved the electro-catalytic reduction of hydrogen peroxide (H2O2) in neutral medium. The FAD-immobilized Ti3C2Tx electrode (FAD/Ti3C2Tx) was studied by UV-Visible and Raman spectroscopies, which confirmed the successful adsorption of FAD on the Ti3C2Tx surface. The surface morphology and the elemental composition of Ti3C2Tx were investigated by high resolution transmission electron microscopy and the energy dispersive X-ray analysis. The redox property of the FAD/Ti3C2Tx modified glassy carbon electrode (FAD/Ti3C2Tx/GCE) was highly dependent on pH and exhibited a stable redox peak at −0.455 V in neutral medium. Higher amounts of FAD molecules were loaded onto the 2D MXene (Ti3C2Tx)-modified electrode, which was two times higher than the values in the reported work, and the surface coverage (ᴦFAD) was 0.8 × 10−10 mol/cm2. The FAD/Ti3C2Tx modified sensor showed the electrocatalytic reduction of H2O2 at −0.47 V, which was 130 mV lower than the bare electrode. The FAD/Ti3C2Tx/GCE sensor showed a linear detection of H2O2 from 5 nM to 2 µM. The optimization of FAD deposition, amount of Ti3C2Tx loading, effect of pH and the interference study with common biochemicals such as glucose, lactose, dopamine (DA), potassium chloride (KCl), ascorbic acid (AA), amino acids, uric acid (UA), oxalic acid (OA), sodium chloride (NaCl) and acetaminophen (PA) have been carried out. The FAD/Ti3C2Tx/GCE showed high selectivity and reproducibility. Finally, the FAD/Ti3C2Tx modified electrode was successfully applied to detect H2O2 in ovarian cancer cell lines.
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Abstract
Abstract
The XXIst century might be called the Plastic Era. With the continually growing consumption and production, low recycling level, one observes the continuous transformation of the Blue Planet into the Ocean of Plastics. Among various problems related to the presence of synthetic materials in the environment, the ghost nets draw particular attention. They are present in the global ocean due to lost or abandoned fishing gear. Their impact on the environment is represented by the tones of animals caught. Moreover, they are an abundant source of secondary marine microplastic and release a considerable amount of toxic chemical compounds. To resolve this issue, an interdisciplinary approach is needed. Chemical research enables a better understanding of polymer behaviour and their weathering, whereas spectroscopy helps in qualitative analyses and proposes solutions. This paper aims to present the interdisciplinary study of this phenomenon and its broad context, including social awareness but underlines the crucial role of chemical research. One focuses on the basic studies of chemical and physical properties as this knowledge provides the first and essential step to tackle the problem.
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Affiliation(s)
- Agnieszka Dąbrowska
- Faculty of Chemistry , University of Warsaw, Laboratory of Spectroscopy and Intermolecular Interactions , Pasteura 1 , 02-093 Warsaw , Poland
- Faculty of Chemistry , University of Warsaw, Chemistry Teaching Laboratory , Żwirki i Wigury 101 , 02-089 Warsaw , Poland
| | - Iwona Łopata
- Faculty of Chemistry , University of Warsaw, Laboratory of Spectroscopy and Intermolecular Interactions , Pasteura 1 , 02-093 Warsaw , Poland
| | - Magdalena Osial
- Biological and Chemical Research Centre, University of Warsaw , Żwirki i Wigury 101 , 02-089 Warsaw , Poland
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V T F, T S C. Effect of neutral red incorporation on Al-doped ZnO thin films and its bio-electrochemical interaction with NAD +/NADP + dependent enzymes. Enzyme Microb Technol 2018; 116:57-63. [PMID: 29887017 DOI: 10.1016/j.enzmictec.2018.05.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 05/06/2018] [Accepted: 05/10/2018] [Indexed: 10/16/2022]
Abstract
A new approach to deposition of electroactive ZnO thin films have been carried out, by one-pot chemical bath deposition with Al dopant and incorporation of neutral red as organic mediator. The morphological, structural and functional characterization of the neutral red incorporated, Al-doped ZnO (NR-AZO) film was carried out using electron microscopy, FTIR, XRD and EIS respectively. The incorporated neutral red was found to induce strain in the crystal of AZO proportional to the concentration used in depositing solution which further affected the charge transfer resistance of the films in solution. One mM neutral red was found to be the optimum concentration for both conductivity and response to NADH/NADPH. The response of the films was further validated by immobilizing NAD+ dependent alcohol dehydrogenase (ADH) and NADP+ dependent glucose dehydrogenase (GDH) independently. The ADH/NR-AZO showed a sensitivity of 3.2 μA cm-2 mM-1 with a LoD of 1.7 μM of ethanol in the range 5.6 μM-7 mM, whereas GDH/NR-AZO showed a sensitivity of 4.33 μA cm-2 mM-1 with a LoD of 27 μM of glucose in the range 90 μM-4 mM. This method serves as a simple alternative to immobilize the organic redox dyes into the inorganic thin films in a single step making it electroactive towards specific biomolecules.
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Affiliation(s)
- Fidal V T
- Bhupat and Jyoti Mehta School of Biosciences, Department of Biotechnology, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Chandra T S
- Bhupat and Jyoti Mehta School of Biosciences, Department of Biotechnology, Indian Institute of Technology Madras, Chennai, 600036, India.
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Guler M, Turkoglu V, Kivrak A, Karahan F. A novel nonenzymatic hydrogen peroxide amperometric sensor based on Pd@CeO 2-NH 2 nanocomposites modified glassy carbon electrode. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 90:454-460. [PMID: 29853112 DOI: 10.1016/j.msec.2018.04.084] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 03/13/2018] [Accepted: 04/28/2018] [Indexed: 01/13/2023]
Abstract
Herein, (3-aminopropyl)triethoxysilane functionalized cerium (IV) oxide (CeO2-NH2) supported Pd nanoparticles were synthesized. The nanocomposites were characterized using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and High-resolution transmission electron microscopy (HRTEM). The Pd@CeO2-NH2 showed better electrocatalytic response to the reduction of H2O2 than CeO2-NH2. The fabricated sensor exhibited two linear responses to the reduction of H2O2. The first one was from 0.001 to 3.276 mM with 0.47 μM of a limit of detection (LOD) (S/N = 3) and excellent sensitivity of 440.72 μA mM-1 cm-2 and the second one was from 3.276 to 17.500 mM with the sensitivity of 852.65 μA mM-1 cm-2 in the optimum conductions. Also, the sensor exhibited 91% of electrocatalytic activity toward H2O2 after having been used for 30 days and the reproducibility was also satisfactory. The sensor response to H2O2 was not affected by ascorbic acid, fructose, glycine, dopamine, arginine, mannose, glucose, uric acid, Mg+2, Ca+2, and phenylalanine at the studied potential. Also, the fabricated sensor was used to determine H2O2 in milk samples. The results show that the constructed sensor can be a promising devise for the determination of H2O2 in real samples.
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Affiliation(s)
- Muhammet Guler
- Van Yuzuncu Yil University, Faculty of Science, Department of Chemistry, 65080 Van, Turkey.
| | - Vedat Turkoglu
- Van Yuzuncu Yil University, Faculty of Science, Department of Chemistry, 65080 Van, Turkey
| | - Arif Kivrak
- Van Yuzuncu Yil University, Faculty of Science, Department of Chemistry, 65080 Van, Turkey
| | - Fatih Karahan
- Van Yuzuncu Yil University, Institute of Science, Van, Turkey
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A Comparative Study of Poly(Azure A) Film-Modified Disposable Electrodes for Electrocatalytic Oxidation of H₂O₂: Effect of Doping Anion. Polymers (Basel) 2018; 10:polym10010048. [PMID: 30966084 PMCID: PMC6414827 DOI: 10.3390/polym10010048] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 12/23/2017] [Accepted: 01/03/2018] [Indexed: 11/17/2022] Open
Abstract
In the present paper, poly(azure A) (PAA) films were electrosynthetized in the presence of different doping anions on disposable screen-printed carbon electrodes (SPCEs). The anions used included inorganic monoatomic (chloride and fluoride), inorganic polyatomic (nitrate and sulfate) and organic polyatomic (dodecyl sulfate, DS) species. The coated electrodes thus obtained were characterized by electrochemical techniques and SEM. They showed improved electrocatalytic activities towards hydrogen peroxide oxidation compared to that of a bare SPCE. In particular, the insertion of DS anions inside PAA films provided a special sensitivity to the electrocatalysis of H2O2, which endowed these electrodes with promising analytical features for H2O2 quantification. We obtained a wide linear response for H2O2 within a range of 5 µM to 3 mM and a limit of detection of 1.43 ± 0.10 µM (signal-to-noise ratio of 3). Furthermore, sensitivity was 72.4 ± 0.49 nA·µM−1∙cm−2 at a relatively low electrocatalytic oxidation overpotential of 0.5 V vs. Ag. The applicability of this boosted system was tested by the analysis of H2O2 in commercial samples of a hair lightener and an antiseptic and was corroborated by spectrophotometric methods.
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Lee KT, Liang YC, Lin HH, Li CH, Lu SY. Exfoliated SnS 2 Nanoplates for Enhancing Direct Electrochemical Glucose Sensing. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.10.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Chiang Lin K, Yu Lai S, Ming Chen S. A highly sensitive NADH sensor based on a mycelium-like nanocomposite using graphene oxide and multi-walled carbon nanotubes to co-immobilize poly(luminol) and poly(neutral red) hybrid films. Analyst 2014; 139:3991-8. [PMID: 24922539 DOI: 10.1039/c4an00536h] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hybridization of poly(luminol) (PLM) and poly(neutral red) (PNR) has been successfully performed and further enhanced by a conductive and steric hybrid nanotemplate using graphene oxide (GO) and multi-walled carbon nanotubes (MWCNTs). The morphology of the PLM-PNR-MWCNT-GO mycelium-like nanocomposite is studied by SEM and AFM and it is found to be electroactive, pH-dependent, and stable in the electrochemical system. It shows electrocatalytic activity towards NADH with a high current response and low overpotential. Using amperometry, it has been shown to have a high sensitivity of 288.9 μA mM(-1) cm(-2) to NADH (Eapp. = +0.1 V). Linearity is estimated in a concentration range of 1.33 × 10(-8) to 1.95 × 10(-4) M with a detection limit of 1.33 × 10(-8) M (S/N = 3). Particularly, it also shows another linear range of 2.08 × 10(-4) to 5.81 × 10(-4) M with a sensitivity of 151.3 μA mM(-1) cm(-2). The hybridization and activity of PLM and PNR can be effectively enhanced by MWCNTs and GO, resulting in an active hybrid nanocomposite for determination of NADH.
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Affiliation(s)
- Kuo Chiang Lin
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, no.1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan.
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Lin KC, Ezhil Vilian AT, Chen SM. Using multi-walled carbon nanotubes to enhance coimmobilization of poly(azure A) and poly(neutral red) for determination of nicotinamide adenine dinucleotide and hydrogen peroxide. RSC Adv 2014. [DOI: 10.1039/c4ra07550a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Illustration of electro-codeposition of azure A and neutral red hybrid films using high ly conductive and steric MWCNTs as a template.
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Affiliation(s)
- Kuo Chiang Lin
- Electroanalysis and Bioelectrochemistry Lab
- Department of Chemical Engineering and Biotechnology
- National Taipei University of Technology
- Taipei 106, Taiwan (ROC)
| | - A. T. Ezhil Vilian
- Electroanalysis and Bioelectrochemistry Lab
- Department of Chemical Engineering and Biotechnology
- National Taipei University of Technology
- Taipei 106, Taiwan (ROC)
| | - Shen Ming Chen
- Electroanalysis and Bioelectrochemistry Lab
- Department of Chemical Engineering and Biotechnology
- National Taipei University of Technology
- Taipei 106, Taiwan (ROC)
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Li L, Lu H, Deng L. A sensitive NADH and ethanol biosensor based on graphene-Au nanorods nanocomposites. Talanta 2013; 113:1-6. [PMID: 23708615 DOI: 10.1016/j.talanta.2013.03.074] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Revised: 03/21/2013] [Accepted: 03/28/2013] [Indexed: 10/27/2022]
Abstract
In this paper, a simple strategy for the synthesis of graphene-Au nanorods hybrid nanosheets (GN-AuNRs) through electrostatic interaction has been demonstrated. Due to the synergistic effect between AuNRs and GN, the hybrid nanosheets exhibited excellent performance toward dihydronicotinamide adenine dinucleotide (NADH) oxidation, with a low detection limit of 6 µM. The linear GN-AuNRs also served as a biocompatible and electroactive matrix for enzyme assembly to facilitate the electron transfer between the enzyme and the electrode. Using alcohol dehydrogenase (ADH) as a model system, a simple and effective sensing platform was developed for ethanol assay. The response displayed a good linear range from 5 to 377 µM with detection limit 1.5 μM. Furthermore, the interference effects of redox active substances, such as uric acid, ascorbic acid and glucose for the proposed biosensor were negligible.
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Affiliation(s)
- Li Li
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China
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Lin KC, Huang JY, Chen SM. Enhancing electro-codeposition and electrocatalytic properties of poly(neutral red) and FAD to determine NADH and H2O2 using amino-functionalized multi-walled carbon nanotubes. RSC Adv 2013. [DOI: 10.1039/c3ra44081h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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