Results 81 to 90 of about 96,684 (239)

The dependence of the specific activity of urease upon the apparent absolute enzyme concentration [PDF]

open access: yes, 1948
If the activity of an enzyme preparation is determined under conditions in which a further increase in substrate concentration is without demonstrable effect, all other factors being held constant, it is ordinarily assumed that the specific activity of ...
Harmon, Kent M.   +2 more
core  

Real Time Detection and Association of Helicobacter Pylori in Oral Squamous Cell Carcinoma

open access: yesJournal of Indian Academy of Oral Medicine and Radiology
Background: Helicobacter pylori is a recognized pathogen associated with gastric carcinoma, but its potential role in oral squamous cell carcinoma (OSCC) remains underinvestigated. Objective: To evaluate the prevalence of H.
Kandasamy Murugan   +5 more
doaj   +1 more source

Towards a monitoring tool to quantify urease during biocementation treatment at microscale [PDF]

open access: yesE3S Web of Conferences
Biocementation consists in using urease enzyme and a solution rich in urea and in calcium to precipitate calcium carbonate (biocement). When applying this treatment in soils, the biocement minerals bond the grains improving overall soil’s hydro ...
Borges Inês   +3 more
doaj   +1 more source

The Main Virulence factors of Cryptococcus neoformans

open access: yesKufa Journal for Veterinary Medical Sciences
Cryptococcus neoformans, a capsule encased pathogenic yeast, causes cryptococcal meningoencephalitis in human, particularly among immunocompromised individuals.
Sara Hayder Jabbar, Ali Hadi Abbas
doaj   +1 more source

Cascading reaction of arginase and urease on a graphene-based FET for ultrasensitive, real-time detection of arginine [PDF]

open access: yes, 2018
Herein, a biosensor based on a reduced graphene oxide field effect transistor (rGO-FET) functionalized with the cascading enzymes arginase and urease was developed for the detection of L-arginine.
Azzaroni, Omar   +4 more
core   +1 more source

The pH-static enzyme sensor : An ISFET-based enzyme sensor, insensitive to the buffer capacity of the sample [PDF]

open access: yes, 1987
An ISFET-based urea sensor is combined with a noble-metal electrode which provides continuous coulometric titration of the products of the enzymatic reaction.
Bergveld, Piet, Schoot, Bart H. van der
core   +3 more sources

Evolution of Macromolecular Docking Techniques: The Case Study of Nickel and Iron Metabolism in Pathogenic Bacteria

open access: yesMolecules, 2015
The interaction between macromolecules is a fundamental aspect of most biological processes. The computational techniques used to study protein-protein and protein-nucleic acid interactions have evolved in the last few years because of the development of
Francesco Musiani, Stefano Ciurli
doaj   +1 more source

Ammonia toxicity: from head to toe? [PDF]

open access: yes, 2016
Ammonia is diffused and transported across all plasma membranes. This entails that hyperammonemia leads to an increase in ammonia in all organs and tissues.
Dasarathy, Srinivasan   +6 more
core   +1 more source

Duality of Biochar and Organic Manure Co-Composting on Soil Heavy Metals and Enzymes Activity

open access: yesApplied Sciences
Technological procedures for immobilizing agrochemical pollutants and activating soil enzymes that break down contaminants are still lacking due to industry’s ever-increasing number of new products to enhance agricultural production systems. Using animal
George F. Antonious
doaj   +1 more source

In Vitro Probiotic Potential of Lactic Acid Bacteria Isolated from Aguamiel and Pulque and Antibacterial Activity Against Pathogens

open access: yesApplied Sciences, 2019
Probiotics can act as a natural barrier against several pathogens, such Helicobacter pylori, a bacterium linked to stomach cancer. The aim of the present study was to isolate and identify lactic acid bacteria (LAB) from pulque and aguamiel, and evaluate ...
Alicia Cervantes-Elizarrarás   +6 more
doaj   +1 more source

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