Zobrazeno 1 - 10
of 23
pro vyhledávání: '"P. B. A., Fechine"'
Autor:
Juliana S. Osterno Leitão, Francisco M. Lima, Daniel de C. Girão, Lillian M. U. D. Fechine, Samuel V. Carneiro, Ralph S. Oliveira, Francisco N. A Freire, A. F. Valentim de Amorim, Pierre B. A. Fechine, Walney Silva Araújo, Janaína S. Rocha
Publikováno v:
Materials Research, Vol 27, Iss suppl 1 (2024)
The use of fluorescent nanomaterials in various fields of study has become increasingly common. In this work, the use of carbon quantum dots as a corrosion marker in carbon steel is proposed. To produce the sensor, carbon quantum dots based on ethyle
Externí odkaz:
https://doaj.org/article/dad24954561547688970b39e9f2f139d
Autor:
Paula J. M. Lima, Jouciane de S. Silva, Rafael L. F. Melo, Francisco S. Neto, Pierre B. A. Fechine, Maria V. P. Rocha, Luciana R. B. Gonçalves, José C. S. dos Santos
Publikováno v:
Química Nova, Vol 47, Iss 5 (2024)
In this work, the support, cashew apple bagasse (CAB), was chemically modified with divinyl sulfone (DVS), and it was evaluated to immobilize Candida antarctica lipase A (CAL-A). The best activation conditions of CAB support were defined by an advanc
Externí odkaz:
https://doaj.org/article/9bb0b27ee4c34acfa329d729b261660e
Autor:
Antônio A. C. Cruz, Natália D. G. Souza, João P. B. de Souza, Samuel V. Carneiro, Claudenilson S. Clemente, Jeanlex S. Sousa, Lillian M. U. D. Fechine, Sebastián Michea, Pierre B. A. Fechine, Rafael M. Freire
Publikováno v:
C, Vol 10, Iss 3, p 57 (2024)
Trace elements such as cobalt (Co), molybdenum (Mo), and zinc (Zn) play necessary roles in different biological functions. Co is a microelement that influences the vascular system. Mo works as an enzymatic cofactor of three enzymes (aldehyde oxidase,
Externí odkaz:
https://doaj.org/article/f6fd0dd828cb46e8a438c8e2b195fee2
Autor:
Katerine da S. Moreira, André L. B. de Oliveira, Lourembergue S. de M. Júnior, Rodolpho R. C. Monteiro, Thays N. da Rocha, Fernando L. Menezes, Lillian M. U. D. Fechine, Juliano C. Denardin, Sebastian Michea, Rafael M. Freire, Pierre B. A. Fechine, Maria C. M. Souza, José C. S. dos Santos
Publikováno v:
Frontiers in Bioengineering and Biotechnology, Vol 8 (2020)
In this communication, it was evaluated the production of fatty acid ethyl ester (FAAE) from the free fatty acids of babassu oil catalyzed by lipase from Rhizomucor miehei (RML) immobilized on magnetic nanoparticles (MNP) coated with 3-aminopropyltri
Externí odkaz:
https://doaj.org/article/147bb8ad5f0f4ba4af1afaa329c91d64
Autor:
Tiago M. Freire, Lillian M. U. D. Fechine, Danilo C. Queiroz, Rafael M. Freire, Juliano C. Denardin, Nágila M. P. S. Ricardo, Thaina N. B. Rodrigues, Diego R. Gondim, Ivanildo J. S. Junior, Pierre B. A. Fechine
Publikováno v:
Nanomaterials, Vol 10, Iss 6, p 1194 (2020)
In this work, chitosan/magnetite nanoparticles (ChM) were quickly synthesized according to our previous report based on co-precipitation reaction under ultrasound (US) irradiation. Besides ChM was in-depth structurally characterized, showing a crysta
Externí odkaz:
https://doaj.org/article/1a04ad40131c4f5a8332c72ed92790be
Autor:
J. S. Sarmento, D. V. M. Paiva, E. V. de Araújo, M. A. S. Silva, A. S. B. Sombra, S. E. Mazzetto, P. B. A. Fechine
Publikováno v:
Applied Physics A. 129
Autor:
Viviane G. P. Ribeiro, João P. F. Mota, Antônio E. Costa Júnior, Nayane M. A. Lima, Pierre B. A. Fechine, Juliano C. Denardin, Luigi Carbone, Ermelinda Bloise, Giuseppe Mele, Selma E. Mazzetto
Publikováno v:
Molecules, Vol 24, Iss 18, p 3284 (2019)
In this work we report the synthesis of new hybrid nanomaterials in the core/shell/shell morphology, consisting of a magnetite core (Fe3O4) and two consecutive layers of oleic acid (OA) and phthalocyanine molecules, the latter derived from cashew nut
Externí odkaz:
https://doaj.org/article/8ad713ce23e64b7fbd21ffab918e23e1
Autor:
Rafael Melo Freire, A. A. C. Cruz, N. D. G. Souza, J. P. B. de Souza, S. V. Carneiro, Claudenilson S. Clemente, Jeanlex S. Sousa, L. M. U. D. Fechine, P. B. A. Fechine
Publikováno v:
SSRN Electronic Journal.
Autor:
P. B. A. Fechine, E. J. J. Mallmann, J. C. Goes, S. D. Figueiro, N. M. P. S. Ricardo, J. C. Denardin, A. S. B. Sombra, F. J. N. Maia, S. E. Mazzeto
Publikováno v:
eXPRESS Polymer Letters, Vol 5, Iss 12, Pp 1041-1049 (2011)
This work is devoted to the preparation of yttrium iron garnet (YIG) ferrimagnetic biocomposites based in biodegradable chitosan and gelatin. The aim was to produce composite films containing controlled amounts of YIG to obtain a new biological mater
Externí odkaz:
https://doaj.org/article/4cf9c0c5519e4499a8f2ce5fc3ea6777
Autor:
Milena A. Esmeraldo, Antonio C. Gomes, Jose E. B. Freitas, Pierre B. A. Fechine, Antonio S. B. Sombra, Elisangela Corradini, Giuseppe Mele, Alfonso Maffezzoli, Selma E. Mazzetto
Publikováno v:
BioResources, Vol 5, Iss 4, Pp 2478-2501 (2010)
Dwarf-green coconut fibers were modified by alkali treatment and characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), as well as thermogravimetric (TGA), mechanical, and dielec
Externí odkaz:
https://doaj.org/article/a96dc7b7f6984d0ba43ed1e19f99abae