Ion current rectification dependent on the concentration gradient of KCl solutions was systematically investigated in polyethyleneimine modified glass nano-pipettes with inner diameter of 105 nm. Peak shape dependence of the rectification factor on outer KCl solution concentration was observed when inner KCl solution with concentration from 1 mM to 500 mM was used. The peak shape dependence was...

Intracellular microelectrodes inserted into the soma of crayfish stretch receptor neurons record frequent fluctuations of the membrane potential. Time course, amplitude, and interval distribution indicate that they are miniature potentials. At the average resting potential the polarity of the miniature potentials depends on the anion used in the microelectrode: KCl electrodes record depolarizin...

Migraine is sexually dimorphic and associated in 20-30% of patients with an aura most likely caused by cortical spreading depression (CSD). We have previously shown that systemic L-kynurenine (L-KYN), the precursor of kynurenic acid, suppresses CSD and that this effect depends on the stage of the estrous cycle in female rats. The objectives here are to determine the influence of ovarian hormone...

In this study, effects of mechanical activation in the chlorination roasting and water leaching route known as CaCl2 process developed for production potassium chloride (KCl) from feldspar ores were studied. A microcline containing K-feldspar ore with 10.89% K2O was first intensively dry milled by a planetary ball mill mixed calcium (CaCl2) then roasted at temperatures up to 1000 °C obtain KCl ...

untuk mengetahui pengaruh dari pembenah tanah terhadap pertumbuhan tanaman, pembentukan bintil akar, serta sifat biologi tanah. Penelitian ini menggunakan Rancangan Acak Kelompok dengan pola non faktorial. Perlakuan terdiri dari: Kontrol, kombinasi Urea dan KCL, Kombinasi (NPK 50% rekomendasi), Sekam Padi 5 ton ha-1 + NPK 0%, KCl, rekomendasi, Biochar sekam padi KCl +NPK rekomendasi. Peubah yan...

Skin permeability of Sevan trout has been studied during 30 min in different solutions: distilled water, 70% ethanol, solution 0.125 M KCl. The was measured by methylene blue. It shown that the skin for this dye changes depending, on what these shreds were kept and side shred tightened from. also KCl ethanol result structural layers, particularly epidermis.

In studies at 5 degrees C and pH 9.0, poliovirus 1 was inactivated about 15 times more rapidly by free chlorine (FC) in purified water in the presence of 1,262 mg of KCl per liter (approximately 0.0169 M) than in the absence of KCl. In the presence of 526 mg of KCl per liter, the virus was inactivated about seven times more rapidly by FC than in the absence of KCl. At a level of 21 mg/liter, KC...

Mitochondrial Ca(2+) concentration ([Ca(2+)](m)) was monitored in C2C12 skeletal muscle cells stably expressing the Ca(2+)-sensitive photoprotein aequorin targeted to mitochondria. In myotubes, KCl-induced depolarization caused a peak of 3.03 +/- 0.14 micrometer [Ca(2+)](m) followed by an oscillatory second phase (5.1 +/- 0.1 per min). Chelation of extracellular Ca(2+) or blockade of the voltag...

We report a systematic study of the condensation of plasmid DNA by oligocations with variation of the charge, Z, from +3 to +31. The oligocations include a series of synthetic linear epsilon-oligo(l-lysines), (denoted epsilonKn, n = 3-10, 31; n is the number of lysines equal to the ligand charge) and branched alpha-substituted homologues of epsilonK10: epsilonYK10, epsilonLK10 (Z = +10); epsilo...

Potassium chloride (KCl) has been commonly used in homogenization buffer and procedures of protein extraction. It is known to facilitate release of membrane-associated molecules but the higher concentration of KCl may affect the integrity of mitochondria by breaching the electrostatic force between the lipids and proteins. Therefore, it has been intended to explore the effect of KCl on mitochon...