Study of the Stability of a 12 Base-pair Self-complementary Oligonucleotide by DSC, NMR and Absorption Spectroscopy

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Physical chemical study of the liquid-vapor interface of the cavitation bubbles

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About a Double-Body Immersion Horn System to be Used for Quantitative Sonochemical Studies

The majority of quantitative sonochemical studies in the 20-100-kHz frequency range are performed by using an immersion horn system. The new system described in this letter consists of a double immersion horn acted on by a single pair of piezoelectric ceramics. This instrument is well adapted to the quantitative measure of effects, i.e. variations in the rate constant of a specific reaction associated to the change of an experimental parameter. The gas effect, obtained by comparing the rate of a reaction under air and under argon, illustrates the efficiency of the system.info:eu-repo/semantics/publishe

About the Janus Double-horn Sonicator and its Use in Quantitative Homogenous Sonochemitry

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Sonochemistry: a Systematic Study of the Maleate-fumarate Isomerization in the Presence of Alkyl Bromides

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Perfluorocarbons as Inert Gases in Homogeneous Sonochemistry

The polyatomic inert gases CF4 and C2F6 are efficient in homogeneous sonochemistry. This observation leads to the conclusion that some analogies could exist between sonochemistry and plasma chemistry. © 1992.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Quantitative sonochemistry

The measurement of a sonochemical effect requires a comparison of the reaction rates with and without ultrasound when all other parameters remain constant. Various artefacts make this last condition difficult to fulfil. Some of them are discussed in the case of the Diels-Alder reaction. To evidence a frequency effect in sonochemistry, the reaction rates have to be compared by changing the frequency alone and maintaining all the other parameters constant. The major difficulty in fulfilling this condition led us to use a relative method where a couple of reactions were studied at 20 kHz and 1.7 MHz. The third topic concerns the effect of ultrasound on various electrochemical reactions for the purpose of producing nano- to microparticles of metals, oxides and semiconductors.SCOPUS: ar.jinfo:eu-repo/semantics/publishedProceedings of the Symposium on the Chemical Effects of Ultrasound in the 1995 International Chemical Congress of Pacific Basin Societie

Sonoelectrochemistry in aqueous electrolyte: a new type of sonoelectroreactor

A new type of sonoelectroreactor is presented. Its most interesting characteristic is the nature of the working electrode which is made up of the immersed titanium horn itself (anode or cathode). The frequency of the home-made reactor is around 20 kHz. The performances of this sonoelectroreactor are tested during the copper electrodeposition. © 1993.info:eu-repo/semantics/publishe

Quantitative Homogeneous Sonochemistry: Scope and Limitations

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