Results 51 to 60 of about 4,745,426 (259)

Kinetic and Thermodynamic Study of Oxidative Decolourisation of a Typical Food Dye (Tartrazine) in an Aqueous Environment

open access: yesJournal of Applied Sciences and Environmental Management, 2020
The study was carried out to describe the kinetics and thermodynamics of hydrogen peroxide oxidation of a typical food dye (Tartrazine). The effect of different operational factors were investigated spectrophotometricallyat wavelength460 nm under pseudo
F.O. Okeola   +5 more
doaj   +1 more source

Evolution‐guided yeast complementation reveals functional differences in human PSPH variants

open access: yesFEBS Open Bio, EarlyView.
Ancient genomes can help guide which human genetic variants are tested experimentally. This study applies that idea to PSPH, a gene involved in serine biosynthesis, and uses high‐throughput yeast complementation to compare variant function. The findings reveal measurable differences among selected alleles and illustrate the value of evolution‐guided ...
Mauricio Campa‐Álvarez   +6 more
wiley   +1 more source

Vaginal pH measured in vivo: lactobacilli determine pH and lactic acid concentration

open access: yesBMC Microbiology, 2019
Background Lactic acid (protonated lactate) has broad antimicrobial activity. Vaginal lactobacilli produce lactic acid, and are known to confer protection against reproductive tract infections when they are predominant in the vaginal microbiota.
Deirdre Elizabeth O’Hanlon   +2 more
doaj   +1 more source

Measurement of Hydrogen Ion Concentration in Mixed Solvents

open access: yes, 1974
Department of Chemistry, Kalyani University, Kalyani and Department of Applied Chemistry, Calcutta University, Calcutta-9, India. Difficulties in establishment of the universal pH scale based on aqueous solution as a standard have been discussed ...
S. ADITYA, S C. LAHIRI
core   +1 more source

Structural studies and functional engineering of NanX: an anhydro‐sialic acid transporter from Escherichia coli

open access: yesFEBS Open Bio, EarlyView.
Biophysical characterisation shows that NanX, a membrane transport protein from the major facilitator superfamily (MFS), forms both monomers and dimers after purification. AlphaFold modelling and substrate docking provide information on residues likely involved in substrate recognition for NanX and another MFS member, NanT.
Michael C. Newton‐Vesty   +13 more
wiley   +1 more source

In silico and in vitro exploration of a tyrosinase for biocatalytic production of catechols

open access: yesFEBS Open Bio, EarlyView.
Tyrosinase from Ralstonia pseudosolanacearum is a promising biocatalyst for producing valuable catechols from monophenol substrates. This tyrosinase is uniquely suited to this due to its high monophenolase : diphenolase ratio. We combined in silico docking and in vivo kinetic characterisation of this tyrosinase with 11 industrially relevant monophenols,
James Britton   +6 more
wiley   +1 more source

Michaelis, L. Hydrogen ion concentration

open access: yes, 1926
Leonor Michaelis. Hydrogen ion concentration, its significance in the biological sciences and methods for its determinations Full texthttps://digitalcommons.rockefeller.edu/ru-authors/1127/thumbnail ...
The Rockefeller University
core  

Adenosine triphosphate as a modulator of protein interactions and stability

open access: yesFEBS Open Bio, EarlyView.
ATP is best known as the cell's energy currency, but it also shapes how proteins fold, interact, aggregate and form biomolecular condensates. This review explains the emerging physical principles behind these effects, including weak binding to charged protein regions, magnesium‐dependent behaviour and concentration‐dependent control of protein ...
Shuyuan Tan, Robin Curtis
wiley   +1 more source

Moisture-based green energy harvesting over 600 hours via photocatalysis-enhanced hydrovoltaic effect

open access: yesNature Communications
Harvesting the energy from the interaction between hygroscopic materials and atmospheric water can generate green and clean energy. However, the ion diffusion process of moisture-induced dissociation leads to the disappearance of the ion concentration ...
Peng Duan   +10 more
doaj   +1 more source

Hydrogen Can Passivate Carbon Impurities in Mg-Doped GaN

open access: yesNanoscale Research Letters, 2020
The effect of unintentionally doped hydrogen on the properties of Mg-doped p-GaN samples grown via metal-organic chemical vapor deposition (MOCVD) is investigated through room temperature photoluminescence (PL) and Hall and secondary ion mass ...
Yuheng Zhang   +7 more
doaj   +1 more source

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