Results 51 to 60 of about 156,544 (253)

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

The correlation of the values of plant-avalilable Pb and Cd in soil determined using different types of extragens [PDF]

Journal of the Serbian Chemical Society, 2004
The plant-available amount of Pb and Cd in soil was determined by extraction using the solutions: 1) 0.5 M Na2EDTA, pH 5.2; 2) 1 M KCl, pH 7.0; 3) 0.1 M KCl, 0.05 M Na2EDTA, pH 6.2; 4) 2 % CH3COOH, pH 2.5 and 5) 1 M CH3COONH4, pH 4.8.
DRAGAN MARKOVIC, DRAGAN VESELINOVIC, ANKICA SAVIN   +2 more
doaj  

Efficient Recovery of Noble Metal Ions (Pd²⁺, Ag⁺, Pt²⁺, and Au³⁺) from Aqueous Solutions Using N,N'-Bis(salicylidene)ethylenediamine (Salen) as an Extractant (Classic Solvent Extraction) and Carrier (Polymer Membranes)

Membranes, 2021
This paper presents the results of the first application of N,N'-bis(salicylidene)ethylenediamine (salen) as an extractant in classical liquid–liquid extraction and as a carrier in membrane processes designed for the recovery of noble metal ions (Pd2 ...
Katarzyna Witt, Małgorzata A. Kaczorowska, Daria Bożejewicz, Włodzimierz Urbaniak   +3 more
doaj   +1 more source

Advances in QCD sum rule calculations

, 2015
We review the recent progress in the applications of QCD sum rules to hadron properties with the emphasis on the following selected problems: (i) development of new algorithms for the extraction of ground-state parameters from two-point correlators; (ii)
Melikhov, Dmitri
core   +1 more source

Optimization of β-cyclodextrin-based extraction of antioxidant and anti-browning activities from thyme leaves by response surface methodology [PDF]

, 2018
Thyme (Thymus vulgaris) has been demonstrated to extend the shelf-life of food products, being also a potential source of bioactive compounds. The aim of this research was to optimize the ultrasound assisted extraction employing β-cyclodextrin aqueous ...
Buera, Maria del Pilar, dos Santos, Cristina, Favre, Leonardo Cristian, Lopez Fernandez, Maria Paula, Mazzobre, Maria Florencia   +4 more
core   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source

Solvent Extraction of Calcium and Strontium into Nitrobenzene by Using a Synergistic Mixture of Hydrogen Dicarbollylcobaltate and Bis(Diphenylphosphino)Methane Dioxide

Acta Chimica Slovenica, 2013
Extraction of microamounts of calcium and strontium by a nitrobenzene solution of hydrogen dicarbollylcobaltate (H+B-) in the presence of bis(diphenylphosphino)methane dioxide (DPPMDO, L) has been investigated.
Emanuel Makrlík, Zdenek Spíchal, Petr Vanura, Pavel Selucký   +3 more
doaj  

Complexation of Amino Acids with Cadmium and Their Application for Cadmium-Contaminated Soil Remediation

Applied Sciences, 2022
The interaction of amino acids with toxic heavy metals influences their immobilization and bioavailability in soils. However, the complexation ability of amino acids with Cd has not been well studied.
Wenbin Yao, Zhihui Yang, Lei Huang, Changqing Su   +3 more
doaj   +1 more source

DNA Renaturation at the Water-Phenol Interface [PDF]

, 2003
We study DNA adsorption and renaturation in a water-phenol two-phase system, with or without shaking. In very dilute solutions, single-stranded DNA is adsorbed at the interface in a salt-dependent manner.
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core   +4 more sources

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

FEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani, Noemi E. Nwosu, Viktoria Gocke, Müge Kasanmascheff, Hannes Mutschler   +4 more
wiley   +1 more source