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Modulation by extracellular and intracellular iodide of volume-activated Cl- current in HeLa cells
(1998)
The patch-clamp technique was used to study the effect of extracellular and intracellular iodide on the properties of the volume-activated anion current in HeLa cells. Upon hypotonic challenge, HeLa cells responded by ...
Deactivation of excited singlet aromatic hydrocarbons by metallic ions in ethanol-water solution
(1987)
The deactivation of a number of excited polycyclic aromatic hydrocarbons by copper(II), cobalt(II), nickle(II) and chromium(III) in ethanol-water (1:1 by volume) has been investigated. In spite of the fact that most of the ...
Methane combustion over Pd/SiO2 catalysts with different degrees of hydrophobicity
(ELSEVIER SCIENCE BV, 2005-04-08)
The combustion of methane has been studied over 1% Pd catalysts supported on commercial silica with different hydrophobicity, prepared by chlorine free precursors. It was found that, when no water is added to the feed, the ...
Nifedipine and nitrendipine reactivity toward singlet oxygen
(ELSEVIER SCIENCE SA, 2005-10-31)
The ability to generate singlet molecular oxygen, O-2((1)Delta(g)), and the scavenging activity of two well-known 1,4-dihydropyridines (1,4-DHPs) such as nifedipine (1,4-dihydro-2,6-dimethyl-4-(2-nitrophenyl)-3,5-pyridin ...
Electronic spectra of d-ph-d’ systems. 1.aminophenol cations as isoelectronic structures of cresols
(1990)
The electronic absorption spectra and luminescent properties in the first singlet π-π* excited states of aminophenol cations in aqueous solutions are studied from a theoretical and experimental point of view. Lifetime and ...
Modulation of the Shaker K+ channel gating kinetics by the S3-S4 linker
(ROCKEFELLER UNIV PRESS, 2000-02)
In Shaker K+ channels depolarization displaces outwardly the positively charged residues of the S4 segment. The amount of this displacement is unknown, but large movements of the S4 segment should be con strained by the ...
Time Decay of the Activity of the Reduction Reaction of NO by CO on a Pd/Al2O3 Catalyst
(SPRINGER, 2008-11)
An experimental study is made of the time decay of activity of the CO-NO reaction on a Pd/Al2O3 looking at the effect on reaction order and apparent activation energy. The optimum kinetics parameters fitting the steady ...
Neurotoxicological and neuroprotective elements in Parkinson's disease
(2002)
SNpc neurons are uniquely at risk from damage by a variety of ROS, including catechol-quinones formed from autoxidation of DA; as well as Tyr O, TyrOOH, H2O2O-.2, NO., HONOO-, and HO.. The high content of Fe2+ in SNpc ...
Characterization of Co/sulfated zirconia catalysts for selective reduction of NO by methane
(ELSEVIER SCIENCE BV, 2008-10-10)
In this study, Co based catalysts (0.5–5 wt% Co) supported on sulfated zirconia were prepared for NO
selective reduction by methane. The effect of Co loading on the catalyst structure, the catalytic activity
and stability, ...
Relationship between the electrophilicity and σp Hammett constant in Baeyer–Villiger reactions
(Elsevier B.V, 2008-07-20)
The Baeyer–Villiger oxidation of some aldehydes and ketones has been revised by using the electrophilicity
as a descriptor of reactivity. The global electrophilicity index evaluated at the ground state of a series
of ...