Results 21 to 30 of about 86,679 (262)

Interactions of retinol with lipid bilayers: studies with vesicles of different radii.

Journal of Lipid Research, 1995
The interactions of retinol with vesicles of dioleoylphosphatidylcholine of varying radii were studied. The rate constants of dissociation of retinol from bilayers (k(off)) and the equilibrium partition constants (Keq) of retinol into bilayers of ...
N Noy, D J Kelleher, A W Scotto
doaj   +1 more source

Potentiometric investigation of acid-base equilibria of two new pyrimidine derivatives in various methanol-water media [PDF]

Journal of the Serbian Chemical Society, 2006
The acid-base properties of 1-amino-5-benzoyl-4-phenyl-1H-pyrimidine-2-one (L1) and 1-amino-5-benzoyl-4-phenyl-1H-pyrimidine-2-thione (L2) were investigated potentiometrically at an ionic strength of 0.10M(LiCl) in 19.8, 33.6 and 55.9 % (v/v) methanol ...
Kiliç Hasan, Birol Er
doaj   +1 more source

Analytical Characterization and Quantification of Histidine Dipeptides, Carnosine and Anserine by Modeling of Potentiometric Titration Data

International Journal of Electrochemical Science, 2015
In this paper, the relevant acid-base properties of the biologically important dipeptides carnosine and anserine were determined using potentiometric titration.
Marija Jozanović, Nikola Sakač, Danijela Jakobović, Milan Sak-Bosnar   +3 more
doaj   +1 more source

Synthesis and Determination of Acid Dissociation Constants of Bis-Acyl Thiourea Derivatives

Journal of the Turkish Chemical Society, Section A: Chemistry, 2023
N,N'-((dodecane-1,12-diylbis(azanediyl))bis(carbonothioyl))bis(4-nitrobenzamide) 5 and N,N'-((dodecane-1,12-diylbis(azanediyl))bis(carbonothioyl))bis(3-nitrobenzamide) 6 as bis acyl thiourea derivatives were synthesized and their molecular structures ...
Çağla EFEOĞLU, Şit TİKEN, Hayati SARI , Yahya NURAL   +3 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

A Study of Acid-Base Equilibria in Acetonitrile Systems of 2-Halo(Cl,Br,I)-4-nitropicoline(3,5,6) N-oxides

Molecules, 1999
An attempt has been made to determine potentiometrically (1) acid dissociation constants of cations obtained by protonation of nine trisubstituted pyridine N-oxides, namely 2-halo(Cl, Br and I)-4-nitropicoline N-oxides with the methyl group at positions ...
Lech Chmurzynski, Jadwiga Lorenc, Aniela Puszko, Ewa Kaczmarczyk   +3 more
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Dissociation Behaviors of CO₂ Hydrate-Bearing Sediment Particle during Settling in Water

Energies, 2018
Dissociation processes of gas hydrate-bearing sediment particles in water flow condition were investigated. Experiments were carried out by observing a spherical CO2 hydrate-bearing sediment (CHBS) particle settling in water.
Peng Li, Xuhui Zhang, Xiaobing Lu
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Decay-rate power-law exponent as a link between dissociation energy and temperature

Physical Review Research, 2020
Indium-cluster anions In_{n}^{−} are probed for delayed dissociation by photoexcitation in a multi-reflection time-of-flight device. In addition to prompt dissociation with below-microsecond decay constants, we observe reactions on timescales of several ...
Paul Fischer, Lutz Schweikhard
doaj   +1 more source