Results 21 to 30 of about 3,082 (116)
infoANALITÍCA, 2018 La contaminación ambiental puede ser natural o antropogénica, que causa la presencia de determinadas sustancias que interfieren con la salud y el bienestar de los habitantes.
Camila Altamirano, Lorena Meneses
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Optimization of the methodology for the extraction of organophosphate pesticides by HS–SPME–GC–NPD
Revista de la Academia Colombiana de Ciencias Exactas, Físicas y NaturalesOptOrganophosphate compounds are widely present in the environment and are known to exert harmful effects on human health by inhibiting acetylcholinesterase (AChE), a key enzyme of the nervous system.
Jhon Alexander Fiscal-Ladino, +2 more
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International Journal of Microbiology, Volume 2018, Issue 1, 2018., 2018 Background. Chronic periodontitis is a multifactorial infectious disease, where multiple bacteria, such as Porphyromonas gingivalis, Prevotella intermedia, and Fusobacterium nucleatum are implicated. The main purpose of researching natural products is to find substances or compounds with antimicrobial activity. Aim.
Fredy Gamboa +6 more
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Spasmolytic and Antibacterial Activity of Two Citrus sinensis Osbeck Varieties Cultivated in Mexico
Evidence-Based Complementary and Alternative Medicine, Volume 2017, Issue 1, 2017., 2017 Antibacterial activity on ATCC strains of Escherichia coli, Salmonella enterica, Salmonella enteritidis, and Salmonella choleraesuis and spasmolytic effect on contraction on rat ileum trips were determinate. Eight organic extracts (hexanic and methanolic) of albedo (mesocarp) and flavedo (pericarp) of two varieties (Valencian and National) of Citrus ...
Amanda Sánchez-Recillas +5 more
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Identificación de explosivos Orgánicos en Indicios Post-Explosión mediante GC-MS y GC-NPD
Tecnología en Marcha, 2020 Se implementó y validó un método para la identificación de explosivos por medio de cromatografía de gases acoplada a un detector de espectrometría de masa (GC-MS) y por cromatografía de gases de doble columna acoplada a dos detectores de fósforo ...
Stephanie Arce-Rubí +6 more
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International Journal of Polymer Science, Volume 2016, Issue 1, 2016., 2016 Polyhydroxyalkanoates (PHAs) are biodegradable and biocompatible plastics. They are synthesized by a wide variety of microorganisms (i.e., fungi and bacteria) and some organisms such as plants, which share characteristics with petrochemical‐based plastics.
Javier Ricardo Gómez Cardozo +4 more
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Immobilization of NTPDase‐1 from Trypanosoma cruzi and Development of an Online Label‐Free Assay
Journal of Analytical Methods in Chemistry, Volume 2016, Issue 1, 2016., 2016 The use of IMERs (Immobilized Enzyme Reactors) as a stationary phase coupled to high performance chromatographic systems is an interesting approach in the screening of new ligands. In addition, IMERs offer many advantages over techniques that employ enzymes in solution.
Felipe Antunes Calil +6 more
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Advanced Optical Materials, Volume 12, Issue 36, December 20, 2024.The preparation and detailed characterization of four rare‐earth(III) based coordination polymers (CPs) showing high photoluminescence quantum yields in solid state is reported. These compounds present good water solubility that renders brightly emitting solutions and good dispersibility into thin‐films.
Laura Razquin‐Bobillo +4 more
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BioMed Research International, Volume 2014, Issue 1, 2014., 2014 Promastigote forms of Leishmania amazonensis were treated with different concentrations of two fractions of Curcuma longa cortex rich in turmerones and their respective liposomal formulations in order to evaluate growth inhibition and the minimal inhibitory concentration (MIC).
Ana Claudia F. Amaral +8 more
wiley +1 more source
Dexamethasone and diclofenac confirmation by LC-MS-MS as herbal product adulterants
Salud Pública de México, 2013 Objective. To confirm the presence of dexamethasone and diclofenac as adulterants of an herbal product. Materials and methods. For identificaction and confirmation of drugs a method of instrumental analysis by liquid chromatography coupled with high ...
Lourdes Garza-Ocañas +4 more
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