Buscar
Mostrando ítems 1-10 de 578
Pump-Free Microfluidic Rapid Mixer Combined with a Paper-Based Channel
(2020-07-24)
Capillary forces are commonly employed to transport fluids in pump-free microfluidic platforms such as paper-based microfluidics. However, since paper is a porous material consisting of nonuniform cellulose fibers, it has ...
Ecotoxicologicaltoolsforthetropics:Sublethalassayswithfishtoevaluate edge-of-fieldpesticiderunofftoxicity
(2010)
This study proposes short-term sublethal assays for the tropics using the fish Poecilia reticulata. Assays were evaluated under realistic exposure scenarios by simulating a runoff over an agricultural area sprayed with ...
Triagens de alta performance para a descoberta de agentes anti-Zika vírus
(Universidade Federal de São CarlosUFSCarCâmpus São CarlosBiotecnologia - Biotec, 2022-04-13)
The Zika virus (ZIKV) is an mosquito-borne transmitted by the bite of the Aedes aegypti mosquito, which became a public health problem during the 2015/2016 outbreak in the Americas and mainly in Brazil, where it was related ...
Estudo fitoquímico e avaliação das atividades antimicrobiana, de inibição enzimática e antitumoral de Erythrina crista-galli nativa do RS
(Universidade Federal de Santa MariaBRQuímicaUFSMPrograma de Pós-Graduação em Química, 2013-09-05)
The phytochemical study of the crude extract hexane, methanol and fractions (acid ether, basic ether and basic acetate) from the stem bark of E. crista-galli (Fabaceae) resulted in the isolation of four compounds: The ...
Bioactive compounds and phenolic-linked functionality of powdered tropical fruit residues
(SAGE PUBLICATIONS LTDLONDON, 2012)
Tropical fruit residues consisting of seeds, peels and residual pulp generated as by-products of fruit processing industry were investigated for bioactive compounds, the in vitro antioxidant capacity as well as alpha-glucosidase ...
Rapid autographic method for detection of enzymatic browning inhibitors based on enzyme immobilization
(Elsevier, 2018-12)
This work describes a TLC-coupled bioautographic assay suitable for the separation and detection of apple polyphenol oxidase (PPO) inhibitors from natural extracts. PPO was immobilised in agar containing L-DOPA as substrate ...
Effects of glucose-glycine melanoidins on the digestive trypsin-like activity of the rainbow trout Oncorhynchus mykiss
(Elsevier Science, 2020-03-01)
Melanoidins, a product of advanced browning reactions due to the thermal treatment of the diet, has been previously demonstrated to inhibit the activity of trypsins from mammalian origin, but no data exists in relation to ...