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A fast-multiclass method for the determination of 21 endocrine disruptors in human urine by using vortex-assisted dispersive liquid-liquid microextraction (VADLLME) and LC-MS/MS
(2020-10-01)
Simplicity, speed, and reduced cost are essential demands for routine analysis in human biomonitoring studies. Moreover, the availability of higher volumes of human specimens is becoming more restrictive due to ethical ...
Chemical Fingerprinting and Biological Evaluation of the Endemic Chilean FruitGreigia sphacelata(Ruiz and Pav.) Regel (Bromeliaceae) by UHPLC-PDA-Orbitrap-Mass Spectrometry
(MDPI, 2020)
Greigia sphacelata(Ruiz and Pav.) Regel (Bromeliaceae) is a Chilean endemic plant popularly known as "quiscal" and produces an edible fruit consumed by the local Mapuche communities named as "chupon". In this study, several ...
Surface treatment of chemithermomechanical pulp (CTMP) to prevent brightness reversion
(2003)
The photostabilizing effects of sodium borohydride (SB) and dimethyl sulfate (DS) chemical modification; thioglycerol (TG), 2.2?-oxydiethanethiol (OD), and 1-dodecanethiol (DC), as free radical scavengers; and benzophenone ...
Antimicrobial and antiproliferative activities of stingless bee Melipona scutellaris geopropolis
(2013-01-28)
Abstract
Background
Geopropolis is a type of propolis containing resin, wax, and soil, collected by threatened stingless bee species native to tropical countries and used in ...
Anti-platelet activity and chemical characterization by UPLC-DAD-ESI-QTOF-MS of the main polyphenols in extracts from Psidium leaves and fruits
(2021)
In Costa Rica, two species of Psidium fruits, P. guajava and P. friedrichsthalianum, are widely consumed as food and used in folk medicine. Although studies have revealed the health effects of these fruits, there has been ...
Screening of Latin American Plants for Cytotoxic Activity
(2006)
The SRB cytotoxicity assay was used to screen plant extracts, in a collaborative multinational OAS project involving Argentina, Bolivia, Colombia, Costa Rica, Guatemala, Nicaragua and Panama, against breast (MCF-7), lung ...
Avaliação da toxicidade de tiossemicarbazonas derivadas de benzaldeído, acetofenona e benzofenona frente a larvas de Aedes aegypti
(Universidade Federal de Juiz de Fora - Campus Avançado de Governador ValadaresBrasil-Programa de Multicêntrico de Pós-Graduação em Bioquímica e Biologia MolecularUFJF/GV, 2018)
Influência da associação de filtros solares sobre a estabilidade, liberação, permeação e retenção cutânea do p-metoxicinamato de octila em formulações fotoprotetoras
(Universidade Estadual Paulista (UNESP), 2014)