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de Moraes Segundo JDDP, de Moraes MOS, Brito WR, Matos RS, Salerno M, Barcelay YR, Segala K, da Fonseca Filho HD, d’Ávila MA. Molecularly Imprinted Membrane Produced by Electrospinning for β-Caryophyllene Extraction. Materials (Basel) 2022; 15:7275. [PMID: 36295339 PMCID: PMC9610809 DOI: 10.3390/ma15207275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/12/2022] [Accepted: 10/14/2022] [Indexed: 06/16/2023]
Abstract
Molecularly imprinted membrane of β-caryophyllene (MIM-βCP) was fabricated incorporating β-caryophyllene molecularly imprinted polymer nanoparticles (βCP-NP) into polycaprolactone (PCL) fibers via electrospinning. The βCP-NP were synthesized by precipitation polymerization using the βCP as a template molecule and acrylic acid as a functional monomer in the proportion of 1:4 mol, respectively. Atomic force microscopy images and X-ray diffraction confirmed the nanoparticles' incorporation into MIM-βCP. MIM-βCP functionalization was evaluated by gas chromatography. The binding capacity was 1.80 ± 0.05 μmol/cm2, and the selectivity test was performed with a mixing solution of βCP and caryophyllene oxide, as an analog compound, that extracted 77% of the βCP in 5 min. The electrospun MIM-βCP can be used to detect and extract the βCP, applications in the molecular sieve, and biosensor production and may also contribute as an initial methodology to enhance versatile applications in the future, such as in the treatment of skin diseases, filters for extraction, and detection of βCP to prevent counterfeiting of commercial products, and smart clothing with insect-repellent properties.
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Affiliation(s)
| | - Maria Oneide Silva de Moraes
- Department of Chemistry, Federal University of Amazonas, Manaus 69067-005, Brazil
- Thematic Laboratory of Microscopy and Nanotechnology, National Institute of Amazonian Research, Manaus 69067-001, Brazil
| | - Walter Ricardo Brito
- Department of Chemistry, Federal University of Amazonas, Manaus 69067-005, Brazil
| | - Robert S. Matos
- Postgraduate Program in Materials Science and Engineering, Federal University of Sergipe-UFS, São Cristóvão 49100-000, Brazil
| | - Marco Salerno
- Institute for Globally Distributed Open Research and Education (IGDORE), Institute for Materials Science, Max Bergmann Center of Biomaterials, Technische Universität Dresden, 01069 Dresden, Germany
| | - Yonny Romaguera Barcelay
- Department of Chemistry, Federal University of Amazonas, Manaus 69067-005, Brazil
- BioMark@UC/CEB–LABBELS, Faculty of Sciences and Technology, University of Coimbra, 3004-531 Coimbra, Portugal
| | - Karen Segala
- Department of Chemistry, Federal University of Amazonas, Manaus 69067-005, Brazil
| | - Henrique Duarte da Fonseca Filho
- Laboratory of Synthesis of Nanomaterials and Nanoscopy, Physics Department, Federal University of Amazonas-UFAM, Manaus 69067-005, Brazil
| | - Marcos Akira d’Ávila
- Department of Manufacturing and Materials Engineering, University of Campinas, Campinas 13083-860, Brazil
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de Moraes Segundo JDDP, Constantino JSF, Calais GB, de Moura Junior CF, de Moraes MOS, da Fonseca JHL, Tsukamoto J, Monteiro RRDC, Andrade FK, d’Ávila MA, Arns CW, Beppu MM, Vieira RS. Virucidal PVP-Copper Salt Composites against Coronavirus Produced by Electrospinning and Electrospraying. Polymers (Basel) 2022; 14:polym14194157. [PMID: 36236105 PMCID: PMC9570984 DOI: 10.3390/polym14194157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 09/24/2022] [Accepted: 09/30/2022] [Indexed: 11/23/2022] Open
Abstract
Electrospinning technology was used to produced polyvinylpyrrolidone (PVP)-copper salt composites with structural differences, and their virucidal activity against coronavirus was investigated. The solutions were prepared with 20, 13.3, 10, and 6.6% w/v PVP containing 3, 1.0, 0.6, and 0.2% w/v Cu (II), respectively. The rheological properties and electrical conductivity contributing to the formation of the morphologies of the composite materials were observed by scanning electron microscopy (SEM). SEM images revealed the formation of electrospun PVP-copper salt ultrafine composite fibers (0.80 ± 0.35 µm) and electrosprayed PVP-copper salt composite microparticles (1.50 ± 0.70 µm). Energy-dispersive X-ray spectroscopy (EDS) evidenced the incorporation of copper into the produced composite materials. IR spectra confirmed the chemical composition and showed an interaction of Cu (II) ions with oxygen in the PVP resonant ring. Virucidal composite fibers inactivated 99.999% of coronavirus within 5 min of contact time, with moderate cytotoxicity to L929 cells, whereas the virucidal composite microparticles presented with a virucidal efficiency of 99.999% within 1440 min of exposure, with low cytotoxicity to L929 cells (mouse fibroblast). This produced virucidal composite materials have the potential to be applied in respirators, personal protective equipment, self-cleaning surfaces, and to fabric coat personal protective equipment against SARS-CoV-2, viral outbreaks, or pandemics.
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Affiliation(s)
- João de Deus Pereira de Moraes Segundo
- Department of Chemical Engineering, Federal University of Ceará, Fortaleza 60455-760, Brazil
- Department of Materials and Bioprocess Engineering, University of Campinas, Campinas 13083-852, Brazil
- Department of Manufacturing and Materials Engineering, University of Campinas, Campinas 13083-860, Brazil
- Correspondence: (J.d.D.P.d.M.S.); (R.S.V.)
| | | | - Guilherme Bedeschi Calais
- Department of Materials and Bioprocess Engineering, University of Campinas, Campinas 13083-852, Brazil
| | | | - Maria Oneide Silva de Moraes
- Thematic Laboratory of Microscopy and Nanotechnology, National Institute of Amazonian Research, Manaus 69067-001, Brazil
| | | | - Junko Tsukamoto
- Department of Genetics, Evolution, Microbiology and Immunology, University of Campinas, Campinas 13083-970, Brazil
| | | | - Fábia Karine Andrade
- Department of Chemical Engineering, Federal University of Ceará, Fortaleza 60455-760, Brazil
| | - Marcos Akira d’Ávila
- Department of Manufacturing and Materials Engineering, University of Campinas, Campinas 13083-860, Brazil
| | - Clarice Weis Arns
- Department of Genetics, Evolution, Microbiology and Immunology, University of Campinas, Campinas 13083-970, Brazil
| | - Marisa Masumi Beppu
- Department of Materials and Bioprocess Engineering, University of Campinas, Campinas 13083-852, Brazil
| | - Rodrigo Silveira Vieira
- Department of Chemical Engineering, Federal University of Ceará, Fortaleza 60455-760, Brazil
- Correspondence: (J.d.D.P.d.M.S.); (R.S.V.)
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de Moraes MOS, de Moraes Segundo JDDP, Paula MMDS, Sales MGF, Brito WR. Highly sensitive electrochemical immunosensor using a protein-polyvinylidene fluoride nanocomposite for human thyroglobulin. Bioelectrochemistry 2021; 142:107888. [PMID: 34325091 DOI: 10.1016/j.bioelechem.2021.107888] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 07/12/2021] [Accepted: 07/13/2021] [Indexed: 01/16/2023]
Abstract
The highly sensitive detection of serum thyroglobulin (Tg) is essential in the post-treatment follow-up of patients with differentiated thyroid cancer undergoing total or partial thyroidectomy and radioactive iodine ablation and requires sensitive, accurate and stable methods. This work proposes an electrochemical immunosensor for the detection of serum Tg antigen, making use of innovative nanocomposites including polyvinylidene fluoride (PVDF) microparticles coated with streptavidin (MP) and gold nanoparticles (AuNPs). The functionalized polymer matrices were characterized by UV-Vis, FTIR, XPS, SEM, dynamic light scattering, and free surface energy. Immobilization of biotin-labeled anti-thyroglobulin monoclonal antibodies was achieved by binding these to the polymer nanocomposite via streptavidin proteins. The analytical response was measured in quintuplicate and had a linear profile from 2.0 to 10.0 ng/mL Tg, with r2 of 0.985. The limits of detection and quantification were excellent, equal to 0.015 and 0.047 ng/mL, respectively. In addition, the recovery factor was equal to 95.4% (1.0 ng/mL Tg). Overall, the innovative polymer-based nanocomposite used herein enabled the production of an electrochemical-based immunosensor with excellent sensitivity, selectivity, and reproducibility. It evidenced the remarkable potential of determining low levels of Tg in in vitro assays, thereby suggesting that it may be considered for the analyzes of serum patients.
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Affiliation(s)
- Maria Oneide Silva de Moraes
- LABEL, Department of Chemistry, Federal University of Amazonas, Manaus, Amazonas 69067-005, Brazil; Thematic Laboratory of Microscopy and Nanotechnology, National Institute of Amazonian Research Manaus, Amazonas 69067-001, Brazil.
| | | | | | - Maria Goreti Ferreira Sales
- BioMark@UC, Department of Chemical Engineering, Faculty of Sciences and Technology, University of Coimbra, Coimbra 3030-790, Portugal
| | - Walter Ricardo Brito
- LABEL, Department of Chemistry, Federal University of Amazonas, Manaus, Amazonas 69067-005, Brazil.
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