A5062651894- Corrosion Behavior and Inhibition
- Paleontology and Stratigraphy of Fossils
- Concrete Corrosion and Durability
- Genomics and Phylogenetic Studies
- Hydrogen embrittlement and corrosion behaviors in metals
- Marine Biology and Environmental Chemistry
- Oral microbiology and periodontitis research
- Streptococcal Infections and Treatments
- Bacterial biofilms and quorum sensing
- Hydrocarbon exploration and reservoir analysis
- Membrane Separation Technologies
- Methane Hydrates and Related Phenomena
- Microbial Community Ecology and Physiology
- Calcium Carbonate Crystallization and Inhibition
- Probiotics and Fermented Foods
- Advanced Sensor and Energy Harvesting Materials
- Marine Ecology and Invasive Species
- Microbial Fuel Cells and Bioremediation
- Marine Biology and Ecology Research
- Pleistocene-Era Hominins and Archaeology
- Graphene and Nanomaterials Applications
- Water Treatment and Disinfection
- Bacteriophages and microbial interactions
- Building materials and conservation
- Offshore Engineering and Technologies
Pontificia Universidad Católica de Chile
2017-2024
Universidad Mayor
2023-2024
Inria Chile
2022
Universidad Andrés Bello
2010
ABSTRACT Fusobacterium nucleatum is a periodontal pathogen that has been directly associated with the development and progression of disease, widespread pathology affects support tissues tooth. We isolated new bacteriophage (FnpΦ02) specifically infects this bacterium. Transmission electron microscopy showed virion composed an icosahedral head segmented tail. The size phage genome was estimated to be approximately 59 kbp double-stranded DNA. morphological features genetic characteristics...
The effects of tidal cycles associated with the water level on biocorrosion stainless steel AISI 316L were studied. Steel coupons exposed to different conditions immersion in mesocosms fed by fresh seawater either continuously or accordance periodicity natural tides. After 5 and 15 weeks, all found have undergone ennoblement formation a biofilm. Analysis composition bacterial community using denaturing gradient gel electrophoresis (DGGE) revealed differences biological succession. exposure...
Abstract Ancient putative microbial structures that appear in the rock record commonly serve as evidence of early life on Earth, but details their formation remain unclear. The study modern mat can help inform properties ancient counterparts, mineralizing systems with morphological similarity to are rare. Here, we characterize partially lithified mats containing cm-scale dendrolitic coniform from a geothermal pool (“Cone Pool”) at Little Hot Creek, California, if fully lithified, would...
Characterizing seasonal changes in diatom community profiles coastal environments is scarce worldwide. Despite diatoms being prevalent microfouling, their role microbially influenced corrosion of metallic materials remains poorly understood. This study reports the effect variations on settlement marine and 316 L stainless steel surfaces exposed to Chilean seawater. Electron microscopy imaging revealed a diverse assembly diatoms, exhibiting pronounced differences at genus level between summer...
Biofouling in membrane filtration systems poses significant operational challenges, leading to decreased permeate flux. The aim of this work was study the anti-biofilm properties new nanofiltration membranes produced via layer-by-layer, LBL, assembly by coating a polyvinylidene fluoride (PVDF) support with polyethylenimine (PEI) and poly(acrylic acid)/graphene oxide (PAA-GO) mixture. were characterized according contact angle, scanning electron microscopy (SEM), atomic force their...
Microbial electrochemical technologies have revealed the opportunity of enrichment for specific bacterial groups that are able to catalyze reactions interest. However, there unsolved challenges towards their application under aggressive environmental conditions, such as in sea. This study demonstrates impact surface potential on community composition and its corrosivity. Electrochemical was successfully carried out natural seawater without nutrient amendments. Experiments were ten days...
Microbially influenced corrosion (MIC) is an aggressive type of that occurs in aquatic environments and sparked by the development a complex biological matrix over metal surface. In marine environments, MIC exacerbated frequent variability environmental conditions typically high diversity microbial communities; hence, local situ studies are crucial to improve our understanding biofilm composition, interactions among its members, characteristics, corrosivity. Typically, material performance...
Las enfermedades periodontales asociadas a la placa dental son un importante problema de salud pública. La etiología estas patologías es origen multifactorial e involucra factores del hospedero, medio ambiente y carácter infeccioso asociados bacterias embebidas en dental. principales periodontitis crónica Porphyromonas gingivalis, Treponema denticola Tannerella forsythia, mientras que Aggregatibacter actinomycetemcomitans se ha asociado principalmente agresiva. Otro microorganismo clave el...