Results 11 to 20 of about 1,155,277 (319)

Chemical Composition of Leaves, Stem, and Roots of Peperomia pellucida (L.) Kunth

Molecules, 2022
Peperomia pellucida is a species known in the Amazon as “erva-de-jabuti” that has been used in several therapeutic applications based on folk medicine.
Paulo Wender P. Gomes, Hugo Barretto, José Diogo E. Reis, Abraão Muribeca, Alice Veloso, Carlos Albuquerque, Andrew Teixeira, Wandson Braamcamp, Sônia Pamplona, Consuelo Silva, Milton Silva   +10 more
doaj   +1 more source

Analyzes of β-lactam antibiotics by direct injection of environmental water samples into a functionalized graphene oxide-silica packed capillary extraction column online coupled to liquid chromatography tandem mass spectrometry

Talanta Open, 2023
An environmentally friendly and high-throughput method for monitoring β-lactam antibiotics in environmental water samples is presented. In this study, an in-lab synthesized graphene oxide supported onto aminopropyl silica (GO@SiO2) sorbent was packed ...
Edvaldo V.S. Maciel, Deyber A. Vargas-Medina, Fernando M. Lancas   +2 more
doaj   +1 more source

Defensive functions and potential ecological conflicts of floral stickiness

Scientific Reports, 2022
Stickiness of vegetative tissues has evolved multiple times in different plant families but is rare and understudied in flowers. While stickiness in general is thought to function primarily as a defense against herbivores, it may compromise mutualistic ...
Alexander Chautá, Arvind Kumar, Jesica Mejia, Elena E. Stashenko, André Kessler   +4 more
doaj   +1 more source

Enhancing the multi-attribute method through an automated and high-throughput sample preparation

mAbs, 2021
The multi-attribute method (MAM), a recent advance in the application of liquid chromatography-mass spectrometry within the pharmaceutical industry, enables the simultaneous monitoring of multiple product quality attributes in a single analytical method.
Pongkwan Sitasuwan, Thomas W. Powers, Tiffany Medwid, Yuting Huang, Bradley Bare, L. Andrew Lee   +5 more
doaj   +1 more source

Margaritaria nobilis L.F. (Phyllanthaceae): Ethnopharmacology and Application of Computational Tools in the Annotation of Bioactive Molecules

Metabolites, 2022
Margaritaria nobilis is a shrubby species widely distributed in Brazil from the Amazon to the Atlantic Rainforest. Its bark and fruit are used in the Peruvian Amazon for disinfecting abscesses and as a tonic in pregnancy, respectively, and its leaves are
Johan Carlos C. Santiago, Carlos Alberto B. Albuquerque, Abraão de Jesus B. Muribeca, Paulo Roberto C. Sá, Sônia das Graças Santa R. Pamplona, Consuelo Yumiko Y. e Silva, Paula Cardoso Ribera, Enéas de Andrade Fontes-Júnior, Milton Nascimento da Silva   +8 more
doaj   +1 more source

The Suitability of RNA from Positive SARS-CoV-2 Rapid Antigen Tests for Whole Virus Genome Sequencing and Variant Identification to Maintain Genomic Surveillance

Diagnostics, 2023
The COVID-19 pandemic has transformed laboratory management, with a surge in demand for diagnostic tests prompting the adoption of new diagnostic assays and the spread of variant surveillance tools. Rapid antigen tests (RATs) were initially used only for
Annamaria Cucina, Flavia Contino, Giuseppina Brunacci, Valentina Orlando, Mario La Rocca, Sergio Indelicato, Francesca Di Gaudio   +6 more
doaj   +1 more source

Development of SPE clean-up procedure for acrylamide determination from potato-based products by GC-MS/MS

Open Agriculture, 2020
The aim of this work was to develop an analytical method for determining acrylamide in potato-based products by gas chromatography and tandem mass spectrometry analysis (GC-MS/MS) using solid-phase extraction (SPE) clean-up.
Negoiță Mioara, Mihai Adriana Laura, Horneț Gabriela Andreea, Duță Denisa Eglantina   +3 more
doaj   +1 more source

Comprehensive Characterization of 76 Pharmaceuticals and Metabolites in Wastewater by LC-MS/MS

Chemosensors, 2021
Wastewaters are considered one of the main sources of pollution in the aquatic environment as release a large number of contaminants every day. Emerging contaminants such as pharmaceuticals have special interest due to the high levels of consumption by ...
Cristian Gómez-Canela, Sílvia Edo, Natalia Rodríguez, Gemma Gotor, Sílvia Lacorte   +4 more
doaj   +1 more source

Efficient Sub-1 Minute Analysis of Selected Biomarker Catecholamines by Core-Shell Hydrophilic Interaction Liquid Chromatography (HILIC) with Nanomolar Detection at a Boron-Doped Diamond (BDD) Electrode

Separations, 2021
A rapid, sensitive method for the separation of catecholamine biomarkers (CAs), of importance in traumatic brain injury (TBI) and in Parkinson’s disease (PD), has been successfully developed using hydrophilic interaction liquid chromatography (HILIC ...
Majidah Alsaeedi, Huda Alghamdi, Phyllis E. Hayes, Anna M. Hogan, Jeremy D. Glennon   +4 more
doaj   +1 more source

Chemical Characterization and Determination of the Antioxidant Properties of Phenolic Compounds in Three Scutellaria sp. Plants Grown in Colombia

Molecules, 2023
Plants of the genus Scutellaria (Lamiaceae) have a wide variety of bioactive secondary metabolites with diverse biological properties, e.g., anti-inflammatory, antiallergenic, antioxidant, antiviral, and antitumor activities.
Silvia M. Porras, Rogerio A. Saavedra, Lady J. Sierra, Robert T. González, Jairo R. Martínez, Elena E. Stashenko   +5 more
doaj   +1 more source