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Zmozinski AV, S Peres R, Macedo AJ, Mendes Becker E, Pasinato Napp A, Schneider R, Reisdörfer Silveira J, Ferreira CA, H Vainstein M, Schrank A. Silicone-geranium essential oil blend for long-term antifouling coatings. Biofouling 2024; 40:209-222. [PMID: 38500010 DOI: 10.1080/08927014.2024.2328611] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 03/05/2024] [Indexed: 03/20/2024]
Abstract
This study explores the potential of geranium essential oil as a natural solution for combating marine biofouling, addressing the environmental concerns associated with commercial antifouling coatings. Compounds with bactericidal activities were identified by 13Carbon nuclear magnetic resonance (13C NMR). Thermogravimetric analysis (TGA) revealed minimal impact on film thermal stability, maintaining suitability for antifouling applications. The addition of essential oil induced changes in the morphology of the film and Fourier transform infrared spectroscopy (FTIR) analysis indicated that oil remained within the film. Optical microscopy showed an increase in coating porosity after immersion in a marine environment. A total of 18 bacterial colonies were isolated, with Psychrobacter adeliensis and Shewanella algidipiscicola being the predominant biofilm-forming species. The geranium essential oil-based coating demonstrated the ability to reduce the formation of Psychrobacter adeliensis biofilms and effectively inhibit macrofouling adhesion for a duration of 11 months.
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Affiliation(s)
- Ariane V Zmozinski
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brasil
| | - Rafael S Peres
- Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Sul - IFRS, Porto Alegre, Brazil
| | - Alexandre José Macedo
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brasil
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Emilene Mendes Becker
- Departamento de Química Inorgânica, Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Amanda Pasinato Napp
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brasil
| | - Rafael Schneider
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brasil
| | - Jade Reisdörfer Silveira
- Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Sul - IFRS, Porto Alegre, Brazil
| | - Carlos Arthur Ferreira
- LAPOL/PPGE3M - Laboratório de Materiais Poliméricos, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Marilene H Vainstein
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brasil
- Departamento de Biologia Molecular e Biotecnologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brasil
| | - Augusto Schrank
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brasil
- Departamento de Biologia Molecular e Biotecnologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brasil
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Felipe VTA, Marques JF, da Silva Silveira MR, Ferreira CA, Mazzetto SE, Lomonaco D, Avelino F. High-performance acetosolv lignin-incorporated DGEBA cured with aprotic imidazolium-based ionic liquid: Polymerization, chemical, thermal and combustion aspects of the thermosetting materials. Int J Biol Macromol 2023; 242:124863. [PMID: 37201891 DOI: 10.1016/j.ijbiomac.2023.124863] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 04/29/2023] [Accepted: 05/10/2023] [Indexed: 05/20/2023]
Abstract
The lignin valorization constitutes a chemical platform for several segments of chemical industry. The aim of this work was to evaluate the potential of acetosolv coconut fiber lignin (ACFL) as an additive to DGEBA, curing it using an aprotic IL ([BMIM][PF6]) and analyze the properties of the obtained thermosetting materials. ACFL was obtained by mixing coconut fiber with 90 % acetic acid and 2 % HCl at 110 °C during 1 h. ACFL was characterized by FTIR, TGA and 1H NMR. The formulations were fabricated by mixing DGEBA and ACFL at different concentrations (0-50 % wt.). The curing parameters and [BMIM][PF6] concentrations were optimized by DSC analyses. The cured ACFL-incorporated epoxy resins were characterized by gel content (GC), TGA, MCC and chemical resistance in different media. ACFL undergone a selective partial acetylation that favored its miscibility with DGEBA. High GC values were obtained at high curing temperatures and ACFL concentration. The crescent ACFL concentration did not affect the Tonset of the thermosetting materials significantly. ACFL has increased the resistance of DGEBA to combustion and different chemical media. ACFL has shown a great potential to be used as a bio-additive for enhancing the chemical, thermal and combustion properties of high-performance materials.
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Affiliation(s)
- Vinícius Taveira Andrade Felipe
- Departament of Research, Extension and Production, Federal Institute of Education, Science and Technology of Ceará, 63503-790 Iguatu, CE, Brazil
| | | | | | - Carlos Arthur Ferreira
- LAPOL/PPGEM, Federal University of Rio Grande do Sul, BP 15010, 91501-970 Porto Alegre, RS, Brazil
| | - Selma Elaine Mazzetto
- Departament of Organic and Inorganic Chemistry, Federal University of Ceará, 60440-900 Fortaleza, CE, Brazil
| | - Diego Lomonaco
- Departament of Organic and Inorganic Chemistry, Federal University of Ceará, 60440-900 Fortaleza, CE, Brazil
| | - Francisco Avelino
- Departament of Research, Extension and Production, Federal Institute of Education, Science and Technology of Ceará, 63503-790 Iguatu, CE, Brazil.
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Bianchi O, Pereira PB, Ferreira CA. Mechanochemical Treatment in High-Shear Thermokinetic Mixer as an Alternative for Tire Recycling. Polymers (Basel) 2022; 14:polym14204419. [PMID: 36297997 PMCID: PMC9610282 DOI: 10.3390/polym14204419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 10/14/2022] [Accepted: 10/17/2022] [Indexed: 11/30/2022] Open
Abstract
This publication highlights the use of a high-speed thermokinetic mixer as an alternative to recycling ground tire rubber (GTR) using mechanochemical treatment. The GTR initially had a gelled fraction of 80% and presented a reduction of up to 50% of gel fraction in the most intensive condition (5145 rpm, n2). The processing condition at the lowest speed (2564 rpm, n1) resulted in greater selectivity in chain scission (K~1). However, in the most intense processing condition (10 min to n2), more significant degradation was observed via random scission, reduction in the glass transition temperature, Tg (11 °C), increase in the soluble polymeric fraction, and a more significant reduction in the density of bonds occurs. The artificial neural network could describe and correlate the thermal degradation profile with the processing conditions and the physicochemical characteristics of the GTR. The n2 velocity resulted in the formation of particles with a smoother and more continuous surface, which is related to the increase in the amount of soluble phase. The approach presented here represents an alternative to the mechanochemical treatment since it can reduce the crosslink density with selectivity and in short times (1–3 min).
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Bastidas JG, Maurmann N, da Silveira MR, Ferreira CA, Pranke P. Development of fibrous PLGA/fibrin scaffolds as a potential skin substitute. Biomed Mater 2020; 15:055014. [DOI: 10.1088/1748-605x/aba086] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Ortega Vega MR, Ercolani J, Mattedi S, Aguzzoli C, Ferreira CA, Rocha AS, Malfatti CF. Oleate-Based Protic Ionic Liquids As Lubricants for Aluminum 1100. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b02426] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Silvana Mattedi
- Laboratório de Termodinâmica Aplicada, Universidade Federal da Bahia (UFBA), Aristides Novis Street 2, Salvador, Bahia 40210-630 Brazil
| | - César Aguzzoli
- Programa de Pós-Graduação em Engenharia e Ciência dos Materiais (PGMAT) Universidade de Caxias do Sul (UCS), Francisco Getúlio Vargas Street 1130, Caxias do Sul, Rio Grande do Sul 95070-560, Brazil
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Ferreira CA, Baptista R, Oliveira-Santos M, Milner J, Marinho V, Ferreira J, Dias P, Moura J, Pego M. 3140The SCORE and the ASCVD risk prediction scores in a Southern Europe population: very good at identifying very low risk patients. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.3140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- C A Ferreira
- University Hospitals of Coimbra, Cardiology A, Coimbra, Portugal
| | - R Baptista
- University Hospitals of Coimbra, Cardiology A, Coimbra, Portugal
| | | | - J Milner
- University Hospitals of Coimbra, Cardiology A, Coimbra, Portugal
| | - V Marinho
- University Hospitals of Coimbra, Cardiology A, Coimbra, Portugal
| | - J Ferreira
- University Hospitals of Coimbra, Cardiology A, Coimbra, Portugal
| | - P Dias
- University Hospitals of Coimbra, Internal Medicine A, Coimbra, Portugal
| | - J Moura
- University Hospitals of Coimbra, Internal Medicine A, Coimbra, Portugal
| | - M Pego
- University Hospitals of Coimbra, Cardiology A, Coimbra, Portugal
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Müller F, Andretta R, de Oliveira Meneguzzi L, Arthur Ferreira C. Development of quaternarized poly(vinyl alcohol) anion-exchange membranes for applications in electrodialysis. J Appl Polym Sci 2017. [DOI: 10.1002/app.44946] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Franciélli Müller
- LAPOL/PPGE3M, Universidade Federal do Rio Grande do Sul; Porto Alegre, RS, BP 15010 Brazil 91501-970
| | - Rafaela Andretta
- LAPOL/PPGE3M, Universidade Federal do Rio Grande do Sul; Porto Alegre, RS, BP 15010 Brazil 91501-970
| | | | - Carlos Arthur Ferreira
- LAPOL/PPGE3M, Universidade Federal do Rio Grande do Sul; Porto Alegre, RS, BP 15010 Brazil 91501-970
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Affiliation(s)
- Eliane Coser
- Universidade Federal do Rio Grande do Sul, Brazil
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Affiliation(s)
- Rafael Silveira Peres
- Escola de Engenharia/PPGE3M, Laboratório de Materiais Poliméricos; UFRGS; Av. Bento Gonçalves 9500 91501-970 Porto Alegre Brazil
| | - Eduardo Cassel
- Faculdade de Engenharia, Departamento de Engenharia Química; PUCRS; Av. Ipiranga 6681 90619-900 Porto Alegre Brazil
| | - Carlos Arthur Ferreira
- Escola de Engenharia/PPGE3M, Laboratório de Materiais Poliméricos; UFRGS; Av. Bento Gonçalves 9500 91501-970 Porto Alegre Brazil
| | - Denise Schermann Azambuja
- Instituto de Química, Laboratório de Eletroquímica; UFRGS; Av. Bento Gonçalves 9500 90619-900 Porto Alegre Brazil
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Pistor V, Ornaghi HL, Ferreira CA, Zattera AJ. Performance of poly(ethylene‐
co
‐vinyl acetate) nanocomposites using distinct clays. J Appl Polym Sci 2012. [DOI: 10.1002/app.34804] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Vinicios Pistor
- LPOL/Universidade de Caxias do Sul, Caxias do Sul, RS, Brazil
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Fiorio R, Zattera AJ, Ferreira CA. Modification of physical properties of thermoplastic polyurethane by incorporation of low-molecular-weight diurethanes. POLYM ENG SCI 2010. [DOI: 10.1002/pen.21760] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Sette JBC, Santana MRO, Martins TPG, Alves SG, Keiralla LCB, Alexandre LM, Ferreira CA, Lopes RW, Penhalves FB, Smanio PEP. IA 002 Ankle Brachial Index (ABI) and its Associations with Myocardial Scintillography (MS) and Cineangiocoronariography in Elderly Patients: A 2-year Follow up. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)71740-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Fiorio R, Zattera AJ, Ferreira CA. Effects of the incorporation of low-molecular-weight diurethanes on thermal and rheological properties of thermoplastic polyurethane. J Appl Polym Sci 2009. [DOI: 10.1002/app.29904] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Salgado KCPC, Von Pinho EVR, Guimarães CT, Von Pinho RG, Ferreira CA, Andrade V. Mapping of quantitative trait locus associated with maize tolerance to high seed drying temperature. Genet Mol Res 2008; 7:1319-26. [PMID: 19065767 DOI: 10.4238/vol7-4gmr504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
quantitative trait locus (QTL) mapping and identification of traits of agronomic importance is important in the process of molecular marker-assisted selection in breeding programs. The molecular map of maize is well saturated and QTL and simple sequence repeat (SSR) markers have been identified, whereas few markers linked to seed quality traits are included. The present study aimed to identify QTL and the gene action and to quantify the effects of these regions in the phenotypic variation related to maize tolerance to high seed drying temperature. SSR markers and 129 segregating families of F2 plants of the cross of intolerant and tolerant lines were used in regression and composite interval mapping methods. Three maize QTL associated with tolerance to high seed drying temperature were identified and mapped to chromosomes 6 and 8, explaining 39% of the phenotypic variation of the trait with additive, dominance and overdominance gene action. These markers seem to be effectively associated with the evaluated trait, since all were mapped near genes whose expression products were associated with seed desiccation tolerance.
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Affiliation(s)
- K C P C Salgado
- Laboratório de Sementes, Departamento de Agricultura, Universidade Federal de Lavras, Lavras, MG, Brasil
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Ferreira CA. Autoimmune diseases: beyond clinical and/or immune parameters to pathogenic process. Pathol Biol (Paris) 2006; 54:119-21. [PMID: 16495021 DOI: 10.1016/j.patbio.2005.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Concepts of autoimmune diseases (AD) over the last number of years are critically considered according to the contribution or lack thereof they have made to the understanding of these diseases. Specifically, terms have come down to contemporary researchers that have generally been left unquestioned, and therefore inadequate to accurately describe or clearly define clinical phenomena. An approach to AD that embraces research results from recent studies holds significant potential.
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Passos DT, Ferreira CA, da Silva SS, Richter MF, Ozaki LS. Detection of genomic variability in different populations of the cattle tick Boophilus microplus in southern Brazil. Vet Parasitol 1999; 87:83-92. [PMID: 10628703 DOI: 10.1016/s0304-4017(99)00147-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
DNA from seven isolates of the cattle tick Boophilus microplus was analyzed by restriction fragment length polymorphism (RFLP). Three different cDNA clones, named P-9, P-25 and CP-12, isolated from a B. microplus cDNA library, were used as DNA probes. DNA sequences of P-9 have high similarity to ribosomal genes, whereas P-25 does not show significant homology with known sequences within databases. CP-12 is a cDNA clone encoding a cysteine endopeptidase gene. A limited degree of polymorphism was detected with P-9 and P-25, while CP-12 showed a different pattern of bands for each tick isolate. These findings suggest the existence of a complex genotypic diversity of the tick B. microplus population in endemic regions.
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Affiliation(s)
- D T Passos
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
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Baroudi R, Ferreira CA. Contouring the hip and the abdomen. Clin Plast Surg 1996; 23:551-72; discussion 572-3. [PMID: 8906390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
This article describes the surgical procedures used for the aesthetic improvements of the flanks and abdomen. A clinical classification for patient selection regarding when to use liposuction, surgery, or both, is included. Isolated flankplasty, isolated abdominoplasty, and combined flanks with abdominoplasty performed in the same stage are reviewed. Finally, secondary problems after traditional abdominoplasty are evaluated. Solutions are described and illustrated.
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Brandalise NA, Nagase Y, Ferreira CA. [Mesenteric panniculitis]. Arq Gastroenterol 1980; 17:17-20. [PMID: 7213127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A case of mesenteric panniculitis is presented in which the main signal was an abdominal pulsable mass and severe obstruction of the lymphatic vessels of the mesentery. A review of the literature was done.
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Zalmon I, Carvalho G, Ferreira CA. [Induction of ovulation with a new drug: clomiphene citrate]. Hospital (Rio J) 1965; 67:1249-54. [PMID: 5294826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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