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Brandão WQ, da Silva RJ, Mojica-Sánchez LC, Maciel BG, Ratkovski GP, de Melo CP. Use of polypyrrole-polystyrene membranes for extracting DNA from plant tissues. BIOMATERIALS AND BIOSYSTEMS 2022; 7:100060. [PMID: 36824490 PMCID: PMC9934434 DOI: 10.1016/j.bbiosy.2022.100060] [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: 04/29/2022] [Revised: 07/25/2022] [Accepted: 07/26/2022] [Indexed: 10/16/2022] Open
Abstract
We describe the preparation of a membrane composed of polypyrrole-polystyrene (PPy-PS) and its application in DNA extraction. We adopted the electrospinning technique to prepare polystyrene (PS) membranes, which we used as substrates for incorporating polypyrrole chains through an in situ chemical procedure. As a model system, we initially investigated the use of PPy-PS membranes for the extraction of salmon sperm DNA from aqueous solutions. These studies have shown that the PPy-PS membrane has a maximum adsorption capacity of 236.0 mg of DNA per gram of PPy after 30 min of exposure to a DNA solution (100 mg/L). We incorporated the PPy-PS membranes into centrifugation columns, which we used to carry out experiments for extracting and purification of DNA from curly lettuce leaves. The protocol was initially optimized by first examining the most appropriate concentration of the three components of the lysis buffer (Tris/HCl, NaCl, and EDTA-Na). We then investigated the most adequate volumes of the concentrated surfactant solution (SDS 20%) and that used in the protein and polysaccharide precipitation step (5 M potassium acetate, pH 6.3), factors that directly influence the quality and quantity of the fraction of DNA obtained. For curly lettuce leaves, both in their mature and young stages, the yield and purity of the DNA purified using the PPy-PS membrane were comparable to those obtained using a commercial kit. In both cases, the collected DNA samples presented excellent integrity and quality. These results are suggestive that these composite membranes are competitive with the commercial kits available for the extraction and purification of DNA from plants.
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Affiliation(s)
| | - Romário J. da Silva
- Departamento de Física, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
| | | | | | - Gabriela P. Ratkovski
- Departamento de Física, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
| | - Celso P. de Melo
- Pós-Graduação em Ciência de Materiais, Brazil,Departamento de Física, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil,Corresponding author at: Pós-Graduação em Ciência de Materiais, Brazil.
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2
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Falletta E, Bruni A, Sartirana M, Boffito DC, Cerrato G, Giordana A, Djellabi R, Khatibi ES, Bianchi CL. Solar Light Photoactive Floating Polyaniline/TiO 2 Composites for Water Remediation. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:3071. [PMID: 34835840 PMCID: PMC8619583 DOI: 10.3390/nano11113071] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/10/2021] [Accepted: 11/12/2021] [Indexed: 11/25/2022]
Abstract
In the present study, the development of innovative polyurethane-polyaniline/TiO2 modified floating materials applied in the sorption and photodegradation of rhodamine B from water matrix under solar light irradiation is reported. All the materials were fabricated with inexpensive and easy approaches and were properly characterized. The effect of the kind of polyaniline (PANI) dopant on the materials' behavior was investigated, as well as the role of the conducting polymer in the pollutant abatement on the basis of its physico-chemical characteristics. Rhodamine B is removed by adsorption and/or photodegradation processes depending on the type of doping agent used for PANI protonation. The best materials were subjected to recycle tests in order to demonstrate their stability under the reaction conditions. The main transformation products formed during the photodegradation process were identified by ultraperformance liquid chromatography-mass spectrometry (UPLC/MS). The results demonstrated that photoactive floating PANI/TiO2 composites are useful alternatives to common powder photocatalysts for the degradation of cationic dyes.
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Affiliation(s)
- Ermelinda Falletta
- Department of Chemistry, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy; (A.B.); (M.S.); (R.D.); (E.S.K.); (C.L.B.)
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Via Giusti 9, 50121 Florence, Italy
| | - Anna Bruni
- Department of Chemistry, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy; (A.B.); (M.S.); (R.D.); (E.S.K.); (C.L.B.)
| | - Marta Sartirana
- Department of Chemistry, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy; (A.B.); (M.S.); (R.D.); (E.S.K.); (C.L.B.)
| | - Daria C. Boffito
- Polytechnique Montréal—Génie Chimique 2900 Boul, Edouard Montpetit—H3T 1J4, Montréal, QC H3C 3A7, Canada;
| | - Giuseppina Cerrato
- Department of Chemistry, Università degli Studi di Torino, Via Pietro Giuria, 7, 10125 Torino, Italy; (G.C.); (A.G.)
| | - Alessia Giordana
- Department of Chemistry, Università degli Studi di Torino, Via Pietro Giuria, 7, 10125 Torino, Italy; (G.C.); (A.G.)
| | - Ridha Djellabi
- Department of Chemistry, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy; (A.B.); (M.S.); (R.D.); (E.S.K.); (C.L.B.)
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Via Giusti 9, 50121 Florence, Italy
| | - Erfan S. Khatibi
- Department of Chemistry, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy; (A.B.); (M.S.); (R.D.); (E.S.K.); (C.L.B.)
| | - Claudia L. Bianchi
- Department of Chemistry, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy; (A.B.); (M.S.); (R.D.); (E.S.K.); (C.L.B.)
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Via Giusti 9, 50121 Florence, Italy
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3
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Intrinsically conductive polymers hybrid bilayer films for the fluorescence molecular diagnosis of the Zika virus. Colloids Surf B Biointerfaces 2021; 208:112120. [PMID: 34597940 DOI: 10.1016/j.colsurfb.2021.112120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 09/09/2021] [Accepted: 09/13/2021] [Indexed: 11/20/2022]
Abstract
In 2016, the Zika virus (ZIKV) infection became a major public health problem, after the discovery that an alarming increase in the number of Brazilian newborns with microcephaly could be associated with the occurrence of this viral disease during the pregnancy of their mothers. The urgent need for simple diagnostic methods that allow rapid screening of suspected cases has stimulated the search for low-cost devices capable of detecting specific sequences of nucleic acids. The present work describes the development of nanostructured films formed by bilayers of conjugated polymers for rapid detection of the presence of Zika virus DNA, via fluorescence methods. For this, we initially deposited alternating layers of polyaniline (PANI) and polypyrrole (PPY) on the surface of polyethylene terephthalate (PET) sheets. The films obtained were then characterized by SEM, UV-Vis, ATR-FTIR, and contact angle measurements. For their use as quenchers for the diagnosis of Zika, a single DNA strand-specific for ZIKV was labeled with a fluorophore (FAM-ssDNA). We determined the time required for the saturation of the interaction between probe FAM-ssDNA and the film (180 min) and the time for the maximal hybridization between FAM-ssDNA and target DNA to occur (60 min). The detection limits were estimated as 345 pM and 278 pM for the PET/PPY-PANI and PET/PANI-PPY hybrid films, respectively. The simplicity of the procedure, coupled with the fact that a positive/negative response can be obtained in less than 60 min, suggests that the proposal of using these polymeric bilayer films is a promising methodology for the development of rapid molecular diagnostic tests.
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da Silva RJ, Pedro GC, Gorza FDS, Maciel BG, Ratkovski GP, Mojica-Sánchez LC, Medina-Llamas JC, Chávez-Guajardo AE, de Melo CP. DNA purification using a novel γ-Fe 2O 3/PEDOT hybrid nanocomposite. Anal Chim Acta 2021; 1178:338762. [PMID: 34482873 DOI: 10.1016/j.aca.2021.338762] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 06/10/2021] [Accepted: 06/13/2021] [Indexed: 10/21/2022]
Abstract
We report the synthesis and characterization of a new hybrid magnetic composite formed by the enveloping of magnetic iron oxide nanoparticles (γ-NP) with chains of the conductive polymer PEDOT, and its use for the efficient separation of DNA molecules from complex biological samples, allowing the high yield separation of a pure and high-quality DNA fraction. The successful formation of the γ-NP/PEDOT composite was confirmed by Fourier transform infrared spectroscopy, scanning electron microscopy, UV visible spectroscopy (UV-Vis), and magnetic hysteresis loop measurements. The nanocomposites showed an excellent capacity of DNA adsorption (Qe ∼ 248 mg/g) in a model system consisting of salmon sperm DNA. When the γ-NP/PEDOT was used in protocols to extract the DNA from complex samples, the corresponding yield was in the range of 6.4 μg (blood) and 7.3 μg (bacteria), as evaluated quality by UV-Vis, PCR analysis, and electrophoresis assays. We also established that the captured DNA does not need to be detached from the nanocomposite for use as seeding material in PCR amplification experiments. These results and the simplicity of the protocols indicate that the γ-NP/PEDOT composite is a promising DNA absorbent, being competitive with the commercially available magnetic purification kits.
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Affiliation(s)
- Romário J da Silva
- Departamento de Física, Universidade Federal de Pernambuco, 50670-901, Recife, PE, Brazil
| | - Graciela C Pedro
- Programa de Pós-Graduação em Ciência de Materiais, Universidade Federal de Pernambuco, 50670-901, Recife, PE, Brazil
| | - Filipe D S Gorza
- Fundação Universidade Federal de Rondônia - UNIR, 76801-974, Porto Velho, RO, Brazil
| | - Bruna G Maciel
- Programa de Pós-Graduação em Ciência de Materiais, Universidade Federal de Pernambuco, 50670-901, Recife, PE, Brazil
| | - Gabriela P Ratkovski
- Departamento de Física, Universidade Federal de Pernambuco, 50670-901, Recife, PE, Brazil
| | | | - Juan C Medina-Llamas
- Centro de Estudios Científicos y Tecnológicos No.18, Instituto Politécnico Nacional, 98160, Zacatecas, Zac, Mexico
| | - Alicia E Chávez-Guajardo
- Unidad Académica de Ciencias de la Tierra, Universidad Autónoma de Zacatecas, 98058, Zacatecas, Zac, Mexico
| | - Celso P de Melo
- Programa de Pós-Graduação em Ciência de Materiais, Universidade Federal de Pernambuco, 50670-901, Recife, PE, Brazil; Departamento de Física, Universidade Federal de Pernambuco, 50670-901, Recife, PE, Brazil.
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de Aguiar MF, Leal ANR, de Melo CP, Alves KGB. Polypyrrole-coated electrospun polystyrene films as humidity sensors. Talanta 2021; 234:122636. [PMID: 34364445 DOI: 10.1016/j.talanta.2021.122636] [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] [Received: 03/12/2021] [Revised: 06/16/2021] [Accepted: 06/21/2021] [Indexed: 01/09/2023]
Abstract
We report the preparation of flexible polystyrene/polypyrrole (PS/PPy) mats and their successful use as a resistive humidity sensor. These composite membranes were prepared by first obtaining PS films through the electrospinning technique, and then incorporating PPy chains by an in situ chemical polymerization of the pyrrole monomer. The PS fibers were homogeneously distributed, with diameters that obeyed a normal distribution with an average value of (1.04 ± 0.12) μm. The deposition of conducting PPy chains on the surface of the PS fibers was confirmed after characterizing the PS/PPy mats by Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), contact angle measurements, and electrochemical impedance spectroscopy (EIS). When used as humidity sensors, the PS/PPy mats exhibited a sensor response of 128.6%, with fast response ((54.9 ± 3.5)s) and recovery times ((76.8 ± 11.1)s), and stable response under different humidity conditions over several days. These performance characteristics compare favorably to those of previous resistive humidity sensors discussed in the literature.
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Affiliation(s)
- Maurício F de Aguiar
- Departamento de Engenharia Mecânica, Universidade Federal de Pernambuco, Recife, PE, 50670-901, Brazil
| | - Andressa N R Leal
- Programa de Pós-Graduação Em Ciência de Materiais, Universidade Federal de Pernambuco, Recife, PE, 50670-901, Brazil
| | - Celso P de Melo
- Departamento de Física, Universidade Federal de Pernambuco, Recife, PE, 50670-901, Brazil
| | - Kleber G B Alves
- Departamento de Engenharia Mecânica, Universidade Federal de Pernambuco, Recife, PE, 50670-901, Brazil.
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da Silva RJ, Mojica-Sánchez LC, Gorza FDS, Pedro GC, Maciel BG, Ratkovski GP, da Rocha HD, do Nascimento KTO, Medina-Llamas JC, Chávez-Guajardo AE, Alcaraz-Espinoza JJ, de Melo CP. Kinetics and thermodynamic studies of Methyl Orange removal by polyvinylidene fluoride-PEDOT mats. J Environ Sci (China) 2021; 100:62-73. [PMID: 33279054 DOI: 10.1016/j.jes.2020.04.034] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 04/21/2020] [Accepted: 04/21/2020] [Indexed: 05/08/2023]
Abstract
We report the preparation of poly(3,4-ethylene dioxythiophene) (PEDOT)-modified polyvinylidene fluoride electrospun fibers and their use as a novel adsorbent material for the removal of the anionic dye Methyl Orange (MO) from aqueous media. This novel adsorbent material can be used to selectively remove MO on a wide pH range (3.0-10.0), with a maximum capacity of 143.8 mg/g at pH 3.0. When used in a recirculating filtration system, the maximum absorption capacity was reached in a shorter time (20 min) than that observed for batch mode experiments (360 min). Based on the analyses of the kinetics and adsorption isotherm data, one can conclude that the predominant mechanism of interaction between the membrane and the dissolved dye molecules is electrostatic. Besides, considering the estimated values for the Gibbs energy, and entropy and enthalpy changes, it was established that the adsorption process is spontaneous and occurs in an endothermic manner. The good mechanical and environmental stability of these membranes allowed their use in at least 20 consecutive adsorption/desorption cycles, without significant loss of their characteristics. We suggest that the physical-chemical characteristics of PEDOT make these hybrid mats a promising adsorbent material for use in water remediation protocols and effluent treatment systems.
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Affiliation(s)
- Romário J da Silva
- Programa de Pós-Graduação em Ciência de Materiais, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
| | | | - Filipe D S Gorza
- Programa de Pós-Graduação em Ciência de Materiais, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
| | - Graciela C Pedro
- Programa de Pós-Graduação em Ciência de Materiais, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
| | - Bruna G Maciel
- Programa de Pós-Graduação em Ciência de Materiais, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
| | - Gabriela P Ratkovski
- Departamento de Física, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
| | - Hérica D da Rocha
- Programa de Pós-Graduação em Ciência de Materiais, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
| | - Kamila T O do Nascimento
- Programa de Pós-Graduação em Ciência de Materiais, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
| | - Juan C Medina-Llamas
- Centro de Estudios Científicos y Tecnológicos No.18, Instituto Politécnico Nacional, 98160 Zacatecas, Zac, Mexico
| | - Alicia E Chávez-Guajardo
- Unidad Académica de Ciencias de la Tierra, Universidad Autónoma de Zacatecas, 98058 Zacatecas, Zac, Mexico
| | - José J Alcaraz-Espinoza
- Departamento de Química, Universidad Autónoma Metropolitana, 09340, Ciudad de México, México
| | - Celso P de Melo
- Programa de Pós-Graduação em Ciência de Materiais, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil; Departamento de Física, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil.
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Zaidi SZJ, Luan Y, Harito C, Utari L, Yuliarto B, Walsh FC. Synthesis and application of gas diffusion cathodes in an advanced type of undivided electrochemical cell. Sci Rep 2020; 10:17267. [PMID: 33057183 PMCID: PMC7560722 DOI: 10.1038/s41598-020-74199-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 07/08/2020] [Indexed: 11/17/2022] Open
Abstract
This paper reports the oxidation of Remazol black B dye by employing iron ions catalyst based gas diffusion cathodes, (GDCs). A GDC was synthesized by using a layer of carbon black and iron ions catalyst for oxygen reduction to hydrogen peroxide. The results demonstrated around 97% decolorization of Remazol black-B dye for 50 min by iron ions catalyst based GDC. The degradation study was performed under electrogenerated hydrogen peroxide at a constant voltage of - 0.6 V vs Hg/HgSO4 in which the rate of degradation was correlated with hydrogen peroxide production. Overall, the GDC's found to be effective method to degrade the dyes via electro-Fenton.
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Affiliation(s)
- S Z J Zaidi
- Electrochemical Engineering Laboratory, Energy Technology Research Group, Faculty of Engineering and Environment, Engineering Sciences, University of Southampton, Highfield, Southampton, SO17 1BJ, UK.
- Institute of Chemical Engineering and Technology, University of the Punjab, Lahore, Pakistan.
| | - Y Luan
- Electrochemical Engineering Laboratory, Energy Technology Research Group, Faculty of Engineering and Environment, Engineering Sciences, University of Southampton, Highfield, Southampton, SO17 1BJ, UK
| | - C Harito
- Industrial Engineering Department, Faculty of Engineering, Bina Nusantara University, Jakarta, 11480, Indonesia
| | - L Utari
- Advanced Functional Materials (AFM) Laboratory, Engineering Physics, Institut Teknologi Bandung, 40132, Bandung, Indonesia
- Research Center for Nanosciences and Nanotechnology (RCNN), Institut Teknologi Bandung, 40132, Bandung, Indonesia
| | - B Yuliarto
- Advanced Functional Materials (AFM) Laboratory, Engineering Physics, Institut Teknologi Bandung, 40132, Bandung, Indonesia
- Research Center for Nanosciences and Nanotechnology (RCNN), Institut Teknologi Bandung, 40132, Bandung, Indonesia
| | - F C Walsh
- Electrochemical Engineering Laboratory, Energy Technology Research Group, Faculty of Engineering and Environment, Engineering Sciences, University of Southampton, Highfield, Southampton, SO17 1BJ, UK
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da Rocha HD, Reis ES, Ratkovski GP, da Silva RJ, Gorza FD, Pedro GC, de Melo CP. Use of PMMA/(rice husk ash)/polypyrrole membranes for the removal of dyes and heavy metal ions. J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2020.03.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Stejskal J. Interaction of conducting polymers, polyaniline and polypyrrole, with organic dyes: polymer morphology control, dye adsorption and photocatalytic decomposition. CHEMICAL PAPERS 2019. [DOI: 10.1007/s11696-019-00982-9] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Pedro GC, Gorza FD, da Silva RJ, do Nascimento KT, Medina-Llamas JC, Chávez-Guajardo AE, Alcaraz-Espinoza JJ, de Melo CP. A novel nucleic acid fluorescent sensing platform based on nanostructured films of intrinsically conducting polymers. Anal Chim Acta 2019; 1047:214-224. [DOI: 10.1016/j.aca.2018.10.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 10/05/2018] [Accepted: 10/08/2018] [Indexed: 12/18/2022]
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