Degradation of Dyes Catalyzed by Aminophenyl-Substituted Mn-Porphyrin Immobilized on Chloropropyl Silica Gel and Evaluation of Phytotoxicity

Autor: Igor Muniz de Oliveira, João Victor Docílio Pereira, Everton Carlos da Silva Pereira, Micaelle Silva de Souza, Márcia Luciana Cazetta, Claudiano Carneiro da Cruz Neto, Victor Mancir da Silva Santana, Victor Hugo Araújo Pinto, Júlio Santos Rebouças, Dayse Carvalho da Silva Martins, Gilson DeFreitas-Silva, Denilson Santos Costa, Vinicius Santos da Silva

Publikováno v: ACS Omega, Vol 9, Iss 27, Pp 29516-29528 (2024)

Externí odkaz: https://doaj.org/article/56394a4d5594421fac97c3972e271ae1

Manganese porphyrins immobilized on magnetic SBA-15 mesoporous silica as selective and efficient catalysts for cyclic and linear alkane oxidation

Autor: Renaldo Marcos da Silva, Gilson DeFreitas-Silva, Júlio S. Rebouças, Irineu Mazzaro, Shirley Nakagaki, Geani Maria Ucoski, Fábio Souza Nunes, Victor Hugo Araújo Pinto

Publikováno v: Microporous and Mesoporous Materials. 265:84-97

This work describes the immobilization of neutral and cationic Mn porphyrins (MnP) on magnetic SBA-15 mesoporous silica. XRD patterns, TEM images and N2 adsorption-desorption analyses showed that the prepared solids had high surface areas and homogen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e7067d011bf8ed529ed437b63f9eebaf
https://doi.org/10.1016/j.micromeso.2018.02.003

Magnetic HMS silica as a Support to Immobilization of Catalysts Based on Cationic Manganese Porphyrins

Autor: Júlio S. Rebouças, Victor Hugo Araújo Pinto, Geani Maria Ucoski, Gilson DeFreitas-Silva, Fábio Souza Nunes, Irineu Mazzaro, Shirley Nakagaki

Publikováno v: ChemistrySelect. 2:3703-3715

The immobilization of cationic manganese porphyrins (MnP) over the surface of a magnetic hexagonal HMS silica (HMS-Mag) produced a solid with high surface area and relatively homogeneous pores. Given the presence of the magnetite, the catalysts are e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b922add393ba41a7ec22c06cf910b9f2
https://doi.org/10.1002/slct.201700501

Thermal stability of the prototypical Mn porphyrin-based superoxide dismutase mimic and potent oxidative-stress redox modulator Mn(III) meso-tetrakis(N-ethylpyridinium-2-yl)porphyrin chloride, MnTE-2-PyP5+

Autor: Ynara Marina Idemori, Tin Weitner, Júlio S. Rebouças, Dayse CarvalhoDa-Silva, Victor Hugo Araújo Pinto, Maria Irene Yoshida, Jonas L.M.S. Santos, Maria G. Fonseca, Ines Batinic-Haberle

Publikováno v: Journal of Pharmaceutical and Biomedical Analysis. 73:29-34

Cationic Mn porphyrins are among the most potent catalytic antioxidants and/or cellular redox modulators. Mn(III) meso-tetrakis(N-ethylpyridinium-2-yl)porphyrin chloride (MnTE-2-PyPCl(5)) is the Mn porphyrin most studied in vivo and has successfully

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d70ba91b3009efc221b02ace35277947
https://doi.org/10.1016/j.jpba.2012.03.033

Chemisorption of divalent cations on a silica gel surface modifield with thioglycolic acid: pH influence and ionic strength

Autor: Maria G. Fonseca, José G.P. Espínola, Victor Hugo Araújo Pinto, Luiza N.H. Arakaki, Vera Lucia S. Augusto Filha, Kaline S. Sousa

Publikováno v: Química Nova, Volume: 30, Issue: 3, Pages: 528-534, Published: JUN 2007
Química Nova v.30 n.3 2007
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ

A novel type of heavy metal adsorbent was prepared by the covalent grafting of thioglycolic acid molecules on a silica gel surface previsiouly modified with 3-aminopropyltrimethoxysilane. The amount of thioglycolic acid immobilized was 1.03 mmol per

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f621186aabdb81a85cd4d515ae3c1860
https://doi.org/10.1590/s0100-40422007000300005