Showing papers in "Bioelectrochemistry and Bioenergetics in 1984"

TL;DR: In this paper, the activation methods of carbon materials, the means of covalent attachment of the enzymes to the electrode surface, and the macrokinetic behaviour of the electrocatalytic systems are studied.

TL;DR: Planar lipid bilayer membranes were formed at the tip of glass patch clamp pipettes, and ion channels reconstituted by fusion of protein-containing vesicles with the bilayer.

TL;DR: CoA existing in the cell wall was electrochemically oxidized to dimeric CoA and, as a result, the respiration of cells was inhibited and inhibition of the respiratory activity resulted in the death of the microbial cells.

TL;DR: The reaction of hydrogen electrooxidation on carbon-black electrodes with hydrogenase has been studied in this paper, where it is shown that in the presence of hydrogenase a hydrogen equilibrium potential equal to 0.0 V is established on a carbon-Black electrode in phosphate buffer, pH 7.5, saturated with hydrogen.

TL;DR: In this article, the thermodynamic parameters of the cytochrome c electron-transfer reaction have been estimated electrochemically using a bis(4-pyridyl)disulfide-modified gold electrode in phosphate buffer solutions (pH's 6-8) containing 0.1 M NaC104.

TL;DR: In this paper, the authors calculated the contribution of transient aqueous pores to the electrical capacitance of artificial bilayer membranes and concluded that the presence of a large population of transient annealing aqueus can be consistent with the magnitude and transmembrane potential dependence of the capacitance.

TL;DR: In this paper, a carbon paste electrode is used to preconcentrate uric acid, and the results of voltammetric measurements are improved with respect to sensitivity and selectivity by simply immersing the electrode in the acid-containing sample for a given period of time, and then transferring the electrode to an electrolytic blank solution.

TL;DR: In this article, the interaction between copper(II) ions and ionic polysaccharides of natural origin has been studied in 0.05 M NaClO4 aqueous solution at 25°C by means of ion-selective electrode potentiometry, spectrophotometry, and circular dichroism measurements.

TL;DR: In this paper, a flow injection system with dehydrogenase reactors and an amperometric NADH detector was tested with a graphite electrode impregnated with a phenoxazine dye (Naphthoyl Nile Blue) as catalyst.

TL;DR: In this article, the surface pressure versus area isotherms in combination with measurement of enhanced light reflection from the interface in the presence of the porphyrin provides information on the packing and orientation of the chromophores.

TL;DR: In this article, the authors showed that the catalytic action caused by underpotential sub-monolayers has been interpreted in terms of the decrease of the electrode poisoning, resulting from a stable gluconolactone-type adsorbate, according to the third body effect in electrocatalysis.

TL;DR: It is clear that an indirect electrochemical mediation plays a role in faradaic stimulation of ostogenesis, as a result of experiments in vivo and in vitro utilizing electrodic direct current stimulation.

TL;DR: Differential pulse polarography (d.p) was employed to study the interaction of copper(II) ions and carboxylic polysaccharides (pectate, P; algal alginate, AA; bacterial alginates, BA; gul(uronate)-rich oligomers, G; man(nuronate-rich oligomer, M), alternating man-gul oligomers and polyacrylate, PAA) in 0.05 M NaClO 4 aqueous solution as mentioned in this paper.

TL;DR: The negative pit corresponds to the surface film formed by molecules of cytosine adsorbed electro- statically at the negatively charged mercury surface via their positive charge or the electropositive site.

TL;DR: In this paper, the mechanism of electron transport in adsorbed redox polymer layers containing quinones or inorganic complexes is discussed. And the nature of the limiting stages of the processes are discussed.

TL;DR: From results, it appears that this new bioelectrochemical method will become a powerful tool for gene- and biotechnology.

TL;DR: In this paper, electron-conducting planar bilayer lipid membranes (BLM) were investigated by cyclic voltammetry (c.v.), a widely used technique in electrochemistry, but only now applied to the BLM system.

TL;DR: Here the pore population is shown to also be consistent with experimentally determined diffusive permeabilities and to give a significant fractional increase in membrane permeability as the transmembrane voltage is varied from 0 to 200 mV.

TL;DR: The electroporation technique provides the low copy number transfection required for genetic studies and provides a physically plausible mechanism for cell fusion in electric pulses.

TL;DR: Changes in the rate of bioelectrocatalytic processes at modified electrodes are determined by the change in the electron transfer distance due to the altered orientation of protein globules at the interface.

TL;DR: The D-state marks the full Donnan equilibrium of the cells, and the curves predicted for transmembrane potential and volume are correlated to the values measured, indicating that only significant fixed charges inside come from hemoglobin.

TL;DR: The proposed microchemiosmotic hypothesis does not require the one-to-one relationship between primary and secondary proton pumps proposed by others (mosaic chemiosmosis), and may be formally considered as particular cases of a more flexible mechanism.

TL;DR: In this paper, five types of cuttings were used to demonstrate the effects of pulsed magnetic fields on root development, including Impatiens sultani, Begonia, Forsythia hard and softwood, and Ilex japonica.

TL;DR: In this paper, the electrochemistry of bilirubin IX-α in N,N-dimethylformamide has been investigated by cyclic voltammetry, modulated specular reflectance spectroscopy, small amplitude a.c.

TL;DR: In this paper, a controlled potential, controlled current (c.p.c.) method for electrolysis of urea in physiologic solutions and in recirculated canine hemodialysate has been developed.

TL;DR: In this article, the adsorbed layers of different mixtures of albumin and lecithin are found to be permeable for the transport of cadmium ions, while the degree of permeability depends on the ratio between the lipid and protein components in the mixture.

TL;DR: In this paper, an electrochemical study of loxapine, clotiapine and clozapine was performed in order to determine their in vitro redox properties and to elucidate their oxidation mechanisms.

TL;DR: The relationship between the energetic state, the volume and the electrophoretic mobility of rat liver mitochondria has been experimentally investigated and it is shown that in the medium with comparatively low ionic strength, the energization of mitochondria leads to a rise in the electrophic mobility and an increase in the volume.