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Rubin Gulaboski

Bio: Rubin Gulaboski is an academic researcher from Saarland University. The author has contributed to research in topics: Voltammetry & Redox. The author has an hindex of 31, co-authored 105 publications receiving 2628 citations. Previous affiliations of Rubin Gulaboski include United States Department of Agriculture & University of Valencia.


Papers
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Book
17 Mar 2005
TL;DR: In this paper, a comprehensive overview of the results published in more than 300 papers over the last 15 years is presented, and applications from many different fields are presented, as well as the theoretical basis of the systems is outlined.
Abstract: Immobilizing particles or droplets on electrodes is a novel and most powerful technique for studying the electrochemical reactions of three-phase systems. It gives access to a wealth of information, ranging from quantitative and phase analysis to thermodynamic and kinetic data of electrode processes. Three-phase electrodes with immobilized droplets provide information on the electrochemistry of redox liquids and of compounds dissolved in inert organic liquids. Such measurements allow the determination of the Gibbs energies of the transfer of cations and anions between immiscible solvents, and thus make it possible to assess the hydrophobicity of ions – a property that is of great importance for pharmaceutical applications, biological studies, and for many fields of chemistry. The monograph gives, for the first time, a comprehensive overview of the results published in more than 300 papers over the last 15 years. The experiments are explained in detail, applications from many different fields are presented, and the theoretical basis of the systems is outlined.

239 citations

Journal ArticleDOI
TL;DR: In this paper, a review on the recent progress of square-wave voltammetry is presented, covering the period of the last five years, addressing the new theoretical development of the technique as well as its application for mechanistic purposes, electrode kinetic measurements, biochemical and analytical applications.
Abstract: A review on the recent progress of square-wave voltammetry is presented, covering the period of the last five years. The review addresses the new theoretical development of the technique as well as its application for mechanistic purposes, electrode kinetic measurements, biochemical and analytical applications. Besides, a few novel methodological modifications are proposed that might expand the scope and application of the technique.

172 citations

Journal ArticleDOI
TL;DR: In this paper, the transfer of the ions Cl −, Br −, I −, ClO 4 −, SCN −, NO 3 −, BF 4 −, and (C 6 H 5 ) 4 B − across the water| n -octanol (W|OC) liquid interface was studied and the standard Gibbs energies of ion transfer were determined.

110 citations

Journal ArticleDOI
TL;DR: Basic oxygen redox chemistry and methods of ROS detection with special emphasis on electron paramagnetic resonance (EPR) spectroscopy are reviewed and the present knowledge of redox regulation of Ca(2+) permeable ion channels such as voltage-gated Ca( 2+) channels, transient receptor potential (TRP) channels and Orai channels is focused on.

108 citations

Journal ArticleDOI
TL;DR: The basic 5 principle is outlined, as well as a summary of the results obtained to date, and a discussion on the theoretical treatments concerning the kinetic regime of the three-phase electrodes with immobilized droplets.
Abstract: Ions can be transferred between immiscible liquid phases across a common interface, with the help of a three-electrode potentiostat, when one phase is an organic droplet attached to a solid electrode and containing a redox probe. This novel approach has been used in studies to determine the Gibbs energy of anion and cation transfer, ranging from simple inorganic and organic ions to the ionic forms of drugs and small peptides. This method of studying ion transfer has the following advantages: (1) no base electrolytes are necessary in the organic phase; (2) the aqueous phase contains only the salt to be studied; (3) a three-electrode potentiostat is used; (4) organic solvents such as n-octanol and chiral liquids such as D- and L-2-octanol can be used; (5) the range of accessible Gibbs energies of transfer is wider than in the classic 4-electrode experiments; (6) the volume of the organic phase can be very small, for example, 1 microL or less; (7) the experiments can be performed routinely and fast. Herein, the basic 5 principle is outlined, as well as a summary of the results obtained to date, and a discussion on the theoretical treatments concerning the kinetic regime of the three-phase electrodes with immobilized droplets.

101 citations


Cited by
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08 Dec 2001-BMJ
TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
Abstract: There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality. Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

33,785 citations

Journal ArticleDOI
TL;DR: Results from Diffraction Experiments 1351 and results from Spectroscopic Measurements 1354 4.3.1.
Abstract: 4. Structure of Ionic Hydration Shells 1351 4.1. Results from Diffraction Experiments 1351 4.1.1. X-ray Diffraction 1351 4.1.2. Neutron Diffraction 1351 4.2. Results from Computer Simulations 1352 4.3. Results from Spectroscopic Measurements 1354 4.3.1. Vibrational Spectroscopic Measurements 1354 4.3.2. EXAFS Spectroscopy 1354 4.3.3. NMR Relaxation Studies 1355 4.3.4. Dielectric Relaxation Studies 1355 4.4. Summary of the Structure of Ionic Hydration Shells 1355

1,445 citations

Journal ArticleDOI
TL;DR: A general and up-to-date overview of methods available for measuring antioxidant activity and the chemistry behind them can be found in this paper, where the principle mechanisms, advantages and limitations of the measurement assays are discussed.

707 citations

Journal ArticleDOI
TL;DR: The mechanisms contributing to sonoporation are categorized according to three ultrasound settings: i) low intensity ultrasound leading to stable cavitation of microbubbles, ii) high intensity ultrasound leads to inertial cavitation with microbubble collapse, and iii) ultrasound application in the absence ofmicrobubbles.

580 citations