A5028744561- Selenium in Biological Systems
- Arsenic contamination and mitigation
- Advanced Nanomaterials in Catalysis
- Nanoparticles: synthesis and applications
- Redox biology and oxidative stress
- Gut microbiota and health
- Mercury impact and mitigation studies
- Trace Elements in Health
- Heavy Metal Exposure and Toxicity
- Geochemistry and Elemental Analysis
- Microbial Metabolites in Food Biotechnology
- Nanocluster Synthesis and Applications
- Seed and Plant Biochemistry
- Vitamin C and Antioxidants Research
- Food composition and properties
- COVID-19 and Mental Health
- Therapeutic Uses of Natural Elements
- Microbial bioremediation and biosurfactants
- Porphyrin Metabolism and Disorders
- Pharmaceutical and Antibiotic Environmental Impacts
- Bacterial biofilms and quorum sensing
- Health and Lifestyle Studies
- Psychological Well-being and Life Satisfaction
- Alkaline Phosphatase Research Studies
- Polar Research and Ecology
San Sebastián University
2014-2024
Universidad de Santiago de Chile
2013-2016
Instituto de Química y Fisicoquímica Biológicas
2015
The tellurium oxyanion tellurite (TeO3 (2-)) is extremely harmful for most organisms. It has been suggested that a potential bacterial resistance mechanism would consist of an enzymatic, NAD(P)H-dependent, reduction to the less toxic form elemental (Te(0)). To date, number enzymes such as catalase, type II NADH dehydrogenase and terminal oxidases from electron transport chain, nitrate reductases, dihydrolipoamide (E3), among others, have shown display tellurite-reducing activity. This...
Mercury salts and tellurite are among the most toxic compounds for microorganisms on Earth. Bacterial mercury resistance is established mainly via reduction by mer operon system. However, specific mechanisms underlying unknown to date. To identify new detoxification we demonstrate that can trigger cross-protection against a group of Pseudomonads isolated from Chilean Antarctic territory. Sequencing 16S rRNA four strains resulted in identification three (ATH-5, ATH-41 ATH-43) Psychrobacter...
DATA REPORT article Front. Microbiol., 08 November 2016Sec. Microbiotechnology Volume 7 - 2016 | https://doi.org/10.3389/fmicb.2016.01777
Reactive oxygen species (ROS) damage macromolecules and cellular components in nearly all kinds of cells often generate toxic intracellular byproducts. In this work, aldehyde generation derived from the Escherichia coli membrane oxidation as well fatty acid profiles, protein oxidation, bacterial resistance to oxidative stress elicitors was evaluated. Studies included wild-type exhibiting a modulated monounsaturated (MUFA) ratio. The hydroxyaldehyde 4-hydroxy 2-nonenal found be most likely...
The goal of this work was to enhance tellurite toxicity against Gram positive bacteria, especially Staphyloccocus aureus. Using a combination assays (growth inhibition zones, growth curves, and minimal inhibitory concentrations), bacterium tested in the presence various SH- OH-containing compounds. Results showed that noxiousness strongly enhanced 2-mercaptoethanol or dithiothreitol. potentiating effect observed S. aureus ATCC 6538 (the model organism study) other bacteria such as Bacillus...
Abstract Background Human Gut Microbiota (HGM) is composed of more than one thousand species, playing an important role in the health status individuals. Dysbiosis (an HGM imbalance) augmented as chronic kidney disease (CKD) progresses, loss function accelerates. Increased antibiotic use CKD subjects and consumption nephrotoxic heavy metals metalloids such lead, cadmium, arsenic, mercury tap water increases dysbiosis state. Studies people with stage 3 are complex to carry out, mainly because...
Nanoparticles (NPs) are increasingly being used in a number of applications that include biomedicine, biological labeling and cancer marker targeting, their successful storage is important to preserve viability. A systematic investigation the thermal photo stability chemically stabilized cadmium telluride (CdTe) quantum dots (QDs) under various conditions either solution or as dried nanoparticles has not been published. Here we report experiments involving synthesized glutathione-capped CdTe...
The industry predominantly depends on synthetic or artificial additives, occasionally permitting the inclusion of natural molecules sourced from plants replicated their original counterparts. production bakery products increasingly uses sourdough to improve quality bread obtain “clean label” (free additives). additive sector contributes this concern through synthesis potentially harmful compounds, utilization hazardous chemicals and solvents, management resulting by-products, reliance...