Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Michael A. Ludeña-Huaman"'
Autor:
Fiorela Ccoyo Ore, Ana María Lechuga Chacon, Rosana Leonor Aranzábal Carrasco, Flor de Liss Meza López, Ana Cecilia Valderrama Negrón, Michael Azael Ludeña Huaman
Publikováno v:
Results in Chemistry, Vol 12, Iss , Pp 101888- (2024)
In this work, a new hydrogel poly(2-hydroxyethyl methacrylate-co-polyethylene glycol methacrylate-co-itaconic acid) poly(HEMA-PEG6MA-IA) covalently crosslinked with Fe3O4 nanoparticles functionalized with 3-(trimethoxysilyl)propyl methacrylate organo
Externí odkaz:
https://doaj.org/article/c97db2c8990f498d9f3369266343946c
Autor:
Michael Azael Ludeña Huaman, Andrea Eliane Quispe Manco, Flor de Liss Meza López, Rosana Leonor Aranzábal Carrasco, Ana María Lechuga Chacón, Sabir Khan
Publikováno v:
Results in Chemistry, Vol 7, Iss , Pp 101454- (2024)
In this research, a novel magnetic hydrogel (MHG) adsorbent based on Fe3O4/poly(2-hydroxyethylmethacrylate-co-2-acrylamido-2-methylpropanesulfonic acid) Fe3O4/poly(HEMA-co-AMPS) was synthesized by in situ co-precipitation of Fe3O4 magnetic particles
Externí odkaz:
https://doaj.org/article/342eb0ebf1e147bb9105b90e8e4bc1c2
Autor:
Michael Azael Ludeña Huaman, Jaime Vega-Chacón, Reneé Isabel Huamán Quispe, Ana Cecilia Valderrama Negrón
Publikováno v:
Results in Chemistry, Vol 5, Iss , Pp 100917- (2023)
Poly(2-hydroxyethyl methacrylate-co-itaconic acid) poly(HEMA-co-IA) and poly(2-hydroxyethyl methacrylate-co-sodium itaconate) poly(HEMA-co-SI) hydrogels were prepared by free-radical copolymerization method at room temperature for 24 h. N,N-methylene
Externí odkaz:
https://doaj.org/article/678440a9b5b6455795555fb5fc54760b
Publikováno v:
Revista Colombiana de Química, Vol 48, Iss 2, Pp 15-20 (2019)
Ursolic acid (UA) and oleanolic acid (OA) are two widely distributed triterpenes in fruits, especially those belonging to Rosaceae family. These triterpene isomers are of great pharmacological interest due to their multiple bioactive properties. For
Externí odkaz:
https://doaj.org/article/2c8d0780da5d4d2d9f080da460121117
Autor:
Michael Azael Ludeña Huaman, Ana Luz Tupa Quispe, Reneé Isabel Huamán Quispe, Carlos Alberto Serrano Flores, Juana Robles Caycho
Publikováno v:
Results in Chemistry, Vol 3, Iss , Pp 100144- (2021)
A simple method has been developed to obtain ursolic acid (UA) by crystallization and recrystallization of the ethanol extract of Clinopodium revolutum. Its structure was confirmed by 1D (1H-, 13C-, DEPT 45, 90 and 135) and 2D (COSY, HMBC and HSQC) n
Externí odkaz:
https://doaj.org/article/52a6afcd85e24f75abe5435fa9d6bac7
Autor:
Michael Azael Ludeña Huaman
Publikováno v:
Revista Colombiana de Química, Vol 47, Iss 1, Pp 10-15 (2018)
A method to obtain ursolic acid (UA) in an easy, fast, and economical way was proposed, having as raw material the medicinal plant Clinopodium revolutum from Peru. This plant is known and marketed as flor de arena or té indio. The selective recrysta
Externí odkaz:
https://doaj.org/article/05d2a0bc021346f9a0f3908250c97ef0
Publikováno v:
Results in Chemistry. 5:100917
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a1af802098e0e80728d91bafd8c3c0d
https://doi.org/10.1016/j.rechem.2023.100917
https://doi.org/10.1016/j.rechem.2023.100917
Autor:
Michael Azael Ludeña-Huaman
Publikováno v:
TIP Revista Especializada en Ciencias Químico-Biológicas. 24
En las dos últimas décadas ha resurgido la química de la poli(2-oxazolina) debido a su fácil síntesis y capacidad para modular su estructura química, así como sus propiedades. Además, las poli(2-oxazolina)s son biocompatibles y muchas respond
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3ffa2d8ed50d74d0f150724256c21f7
https://doi.org/10.22201/fesz.23958723e.2021.341
https://doi.org/10.22201/fesz.23958723e.2021.341
Autor:
Carlos Alberto Serrano Flores, Ana Luz Tupa Quispe, Reneé Isabel Huamán Quispe, Michael Azael Ludeña Huaman
RESUMEN Ursolic acid (3β-3-hydroxy-urs-12-en-28-oic-acid) is a pentacyclic triterpenoid compound present in many medicinal herbs and edible fruits of different species of plants. Ursolic acid is now considered an important biomolecule due to its pha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0cef8177922e312617cbbc3f7d1c1f0f
Autor:
Azael Ludeña-Huaman, Michael1 michael.ludenah@unsaac.edu.pe
Publikováno v:
TIP Revista Especializada en Ciencias Químico-Biológicas. 2021, Vol. 24, p1-7. 7p.