Zobrazeno 1 - 10
of 178
pro vyhledávání: '"Silvana Mattedi"'
Autor:
Ana M. Ferreira, Isabela Sales, Sónia A. O. Santos, Tiago Santos, Fátima Nogueira, Silvana Mattedi, Simão P. Pinho, João A. P. Coutinho, Mara G. Freire
Publikováno v:
Chem & Bio Engineering, Vol 1, Iss 1, Pp 44-52 (2024)
Artemisinin, a drug used to treat malaria, can be chemically synthesized or extracted from Artemisia annua L. However, the extraction method for artemisinin from biomass needs to be more sustainable while maintaining or enhancing its bioactivity. Thi
Externí odkaz:
https://doaj.org/article/4e0e72ad6b294d8b99c9f96ef8c8f2bf
Autor:
Victor Velho de Castro, Cristiano Ev, Leandro Câmara Noronha, Matheus Bullmann, Louise Etcheverry, Leonardo Moreira dos Santos, Rafael Marquetto Vargas, Silvana Mattedi, Roberto Moreira Schroeder, Célia de Fraga Malfatti
Publikováno v:
Metals, Vol 14, Iss 6, p 705 (2024)
This study aims to assess the effectiveness of water-based formulations featuring m-2HEAOL and talc particles in deep drawing applications. The coefficient of friction (COF) was measured through bending under tension (BUT) tests, while the interactio
Externí odkaz:
https://doaj.org/article/b7fcb216829747469aa2522a6667fd1c
Autor:
Moisés F. E. Silva, Beatriz R. Silva, Adrielle N. Marques, Silvana Mattedi, Ricardo F. Carvalho
Publikováno v:
Polymers, Vol 16, Iss 2, p 166 (2024)
Hydrothermal aging is a matter of considerable concern for natural fiber-reinforced polymers; it can alter dimensional stability and induce microcracks and macro strain on the composite structure. This study applied a sorption kinetic model and exami
Externí odkaz:
https://doaj.org/article/e695530322f54bd987507204b21e1ced
Autor:
Cleide M. F. Soares, Milson S. Barbosa, Samuel B. Santos, Silvana Mattedi, Álvaro S. Lima, Matheus M. Pereira, Carla Tecelão, Suzana Ferreira-Dias
Publikováno v:
Catalysts, Vol 13, Iss 5, p 825 (2023)
Human milk fat (HMF) triacylglycerols (TAGs) mainly contain palmitic acid esterified at the sn-2 position while oleic and other unsaturated fatty acids are located at positions sn-1,3. This study aimed at the production of HMF substitutes (HMFS) by l
Externí odkaz:
https://doaj.org/article/243f665d10c148cd8845e0a624aa63c8
Autor:
Maria Rita Ortega Vega, Karine Parise, Leandro B. Ramos, Uilian Boff, Silvana Mattedi, Lírio Schaeffer, Célia F. Malfatti
Publikováno v:
Materials Research, Vol 20, Iss 3, Pp 675-687 (2017)
Among the applications for protic ionic liquids (PILs), lubrication is one of the newest and the most promising. In this work, ammonium-based protic ionic liquids were tested as lubricant fluids for aluminum-steel contacts. PILs were synthesized with
Externí odkaz:
https://doaj.org/article/1a5d05f3ae1343f7b20b41e578adfa7f
Autor:
Anderson S. Barbosa, Jessica A. Lisboa, Matheus A. O. Silva, Nayára B. Carvalho, Matheus M. Pereira, Alini T. Fricks, Silvana Mattedi, Álvaro S. Lima, Elton Franceschi, Cleide M. F. Soares
Publikováno v:
Química Nova, Vol 39, Iss 4, Pp 415-422 (2016)
Mesoporous silica supports (aerogels) were used to immobilize Burkholderia cepacia lipase (BC) by encapsulation (EN or ENIL), physical adsorption (ADS or ADSIL) and covalent binding (CB or CBIL) into or onto the aerogel modified with protic ionic liq
Externí odkaz:
https://doaj.org/article/42f4aaf15aad435ba829cb8009b9ae33
Autor:
Anderson dos S. Barbosa, Matheus Albuquerque de O. Silva, Nayara B. Carvalho, Silvana Mattedi, Miguel Angel Iglesias, Alini T. Fricks, Álvaro S. Lima, Elton Franceschi, Cleide M. F. Soares
Publikováno v:
Química Nova, Vol 37, Iss 6, Pp 969-976 (2014)
Lipase from Burkholderia cepacia was immobilized in a silica matrix and dried in high pressure carbon dioxide media (aerogel). The protic ionic liquid (PIL) was used in the immobilization process by encapsulation. The objective of this work was to ev
Externí odkaz:
https://doaj.org/article/61331ec6a1fd40a08051e4de419a332e
Autor:
Maria Vanessa Souza Oliveira, Patrícia Caroline Molgere Da Rós, Silvana Mattedi, Heizir Ferreira Castro, Cleide Mara Faria Soares, Álvaro Silva Lima
Publikováno v:
Acta Scientiarum: Technology, Vol 36, Iss 3, Pp 445-451 (2014)
Enzymatic transesterification from non-edible vegetable oil (babassu oil) and ethanol is provided. A set of seven experiments featuring a full 22 factorial design with three central points and different combinations of molar ratio and temperature as
Externí odkaz:
https://doaj.org/article/c956cc7b26c746a9af7c96df781c6bd1
Autor:
Rogério F. Dos Santos, Tiago Falcade, Leonardo M. Antonini, Maria R. Ortega V., Silvana Mattedi, Miguel Iglesias, Célia F. Malfatti
Publikováno v:
Dyna, Vol 81, Iss 184, Pp 122-128 (2014)
En el presente trabajo, se llevó a cabo un estudio de corrosión causada por distintos líquidos iónicos sobre placas de acero al carbón A285 grado A, a temperatura ambiente. Se prepararon los líquidos iónicos por neutralización de monoetanolam
Externí odkaz:
https://doaj.org/article/e874a539bd6449cdaf8a2a5cf00287f6
Autor:
Nayára B. Carvalho, Bruna T. Vidal, Anderson S. Barbosa, Matheus M. Pereira, Silvana Mattedi, Lisiane dos S. Freitas, Álvaro S. Lima, Cleide M. F. Soares
Publikováno v:
International Journal of Molecular Sciences, Vol 19, Iss 7, p 1829 (2018)
Treated silica xerogel with protic ionic liquid (PIL) and bifunctional agents (glutaraldehyde and epichlorohydrin) is a novel support strategy used in the effective immobilization of lipase from Burkholderia cepacia (LBC) by covalent binding. As bioc
Externí odkaz:
https://doaj.org/article/b39ad6cbebf34421965057242ed4a693