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Special Issue "Sonochemistry: Understanding of Ultrasonic-Based Phenomena and Innovative Applications in Chemistry: A Commemorative Issue in Honor of Dr. Jean-Louis Luche"

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Green Chemistry".

Deadline for manuscript submissions: 31 July 2021.

Special Issue Editor

Dr. Gregory Chatel
E-Mail Website
Guest Editor
EDYTEM, Univ. Savoie Mont Blanc University, CNRS, 73000 Chambéry, France
Interests: green chemistry; sonochemistry; sonophotochemistry; catalysis; organic chemistry; eco-extraction; ultrasound; ionic liquids; supercritical fluids; microwaves; oxidation reactions; biomass conversion; cellulose processing; lignin valorization; waste valorization; sustainable chemical processes, circular economy
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Special Issue Information

Dear Colleagues,

It is a great honor for me to be the guest editor of this Commemorative Issue in homage to Dr. Jean-Louis Luche. Unfortunately, I never had the opportunity to meet Dr. Luche, who ended his career in the laboratory in which I currently work (LCME, Univ. Savoie Mont Blanc). However, he is an important reference in the history of sonochemistry through his scientific contribution, but also in my career, since his work has always inspired me, since my thesis, and continues to guide me in my current research involving organic sonochemistry. I personally thank Marie-Jacqueline Luche et her daugthers Béatrice, Sylvie, Stéphanie and Nathalie for the exchanges we had and for supporting the posting of this Commemorative Issue.


Jean-Louis Luche was born in Pithiviers in France in 1941. He graduated from the National School of Chemistry of Paris (1963) and obtained his doctorate at the Collège de France (1968) in a team supervised by Prof. Henri B. Kagan. After a postdoctoral internship in Canada, he started a brilliant career at the CNRS (France) and obtained the CNRS Silver Medal in 1991. Within the Laboratoire d’Études Dynamiques et Structurales de la Sélectivité (LEDSS) of Grenoble, he was interested in the stereochemistry of the allenes and the possibilities offered by lanthanides. At the end of the 1970s, he described the efficient selective reduction of α,β-unsaturated ketones by the action of the NaBH4-CeCl3 complex in alcoholic medium, known as “Luche reduction”.

In his book entitled Synthetic Organic Sonochemistry, Dr. Luche wrote in 1998: “Almost 20 years ago, we had to perform an apparently simple Grignard reaction with n-butylmagnesium bromide and geranial, but the results were repeatedly unsatisfactory. The one-pot Barbier technique was attempted, also without success. From my studies at the University, I imagined that the failure of the latter reaction could be caused by common phenomenon known by solid state chemists as passivation, which in some cases can be overcome by ultrasonication. By chance, an ultrasonic bath was sitting on the next bench, borrowed to clean some equipment. We clamped our reluctant reaction mixture into the bath, the reaction proceeded vigorously and… the adventure started!”

The research work developed by Luche makes him one of the pioneers of sonochemistry, in particular organic sonochemistry. In addition to the numerous examples and applications developed, Dr. Luche proposed a theory for classifying and predicting the different effects of ultrasound according to the studied reactions. He was also convinced of the need to bring together a community of scientists working on chemistry under ultrasound, allowing the creation of the European Society of Sonochemistry and the organization of its first international congress in France in 1990.

After three years at the Université Paul Sabatier in Toulouse (France), he joined in 1996 his Alps and the young Université de Savoie and the Laboratoire de Chimie Moléculaire et Environnement (LCME), where he was hosted by one of his first PhD students when he was in Grenoble, Prof. Christian Pétrier.

A great reader and passionate about music, Spain, and mountain walks, Dr. Luche left us on 24 March 2014.

The journal is pleased to be publishing a commemorative issue in honor of Dr. Jean-Louis Luche for his outstanding contributions to sonochemistry. This Special Issue of Molecules welcomes the submissions of unpublished manuscripts of original work or reviews on sonochemistry and the use of ultrasound in chemistry from fundamental to applicative research.

Dr. Gregory Chatel
Guest Editor

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  • power ultrasound
  • sonochemistry
  • sonochemical cavitation
  • mechanisms
  • applications
  • reactivity
  • organic chemistry
  • materials
  • polymers
  • radical species
  • theory

Published Papers (2 papers)

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Frequency-Dependent Sonochemical Processing of Silicon Surfaces in Tetrahydrofuran Studied by Surface Photovoltage Transients
Molecules 2021, 26(12), 3756; - 20 Jun 2021
Viewed by 469
The field of chemical and physical transformations induced by ultrasonic waves has shown steady progress during the past decades. There is a solid core of established results and some topics that are not thoroughly developed. The effect of varying ultrasonic frequency is among [...] Read more.
The field of chemical and physical transformations induced by ultrasonic waves has shown steady progress during the past decades. There is a solid core of established results and some topics that are not thoroughly developed. The effect of varying ultrasonic frequency is among the most beneficial issues that require advances. In this work, the effect of sonication of Si wafers in tetrahydrofuran on the photovoltage performance was studied, with the specific goal of studying the influence of the varying frequency. The applied ultrasonic transducer design approach enables the construction of the transducer operating at about 400 kHz with a sufficient sonochemical efficiency. The measurements of the surface photovoltage (SPV) transients were performed on p-type Cz-Si(111) wafers. Sonication was done in tetrahydrofuran, methanol, and in their 3:1 mixture. When using tetrahydrofuran, the enhanced SPV signal (up to ≈80%) was observed due to increasing sonication frequency to 400 kHz. In turn, the signal was decreased down to ≈75% of the initial value when the frequency is lowered to 28 kHz. The addition of methanol suppressed this significant difference. It was implied that different decay processes with hydrogen decomposed from tetrahydrofuran could be attempted to explain the mechanism behind the observed frequency-dependent behavior. Full article
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Jean-Louis Luche and the Interpretation of Sonochemical Reaction Mechanisms
Molecules 2021, 26(3), 755; - 01 Feb 2021
Cited by 2 | Viewed by 719
Sonochemistry can be broadly defined as the science of chemical and physical transformations produced under the influence of sound. The use of sound energy is rather a young branch of chemistry and does not have the clear definitive rules of other, more established, [...] Read more.
Sonochemistry can be broadly defined as the science of chemical and physical transformations produced under the influence of sound. The use of sound energy is rather a young branch of chemistry and does not have the clear definitive rules of other, more established, divisions such as those in cycloaddition reactions or photochemistry. Nevertheless, there are a few guidelines which can help to predict what is going to happen when a reaction mixture is submitted to ultrasonic irradiation. Jean-Louis Luche, formulated some ideas of the mechanistic pathways involved in sonochemistry more than 30 years ago. He introduced the idea of “true” and “false” sonochemical reactions both of which are the result of acoustic cavitation. The difference was that the former involved a free radical component whereas only mechanical effects played a role the latter. The authors of this paper were scientific collaborators and friends of Jean-Louis Luche during those early years and had the chance to discuss and work with him on the mechanisms of sonochemistry. In this paper we will review the original rules (laws) as predicted by Jean-Louis Luche and how they have been further developed and extended in recent years. Full article
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.


Title: Ultrasound assisted microencapsulation of soybean oil and vitamin
Authors: Rita Cimino a, Sukhvir Kaur Bhangu b, Anshul Baral c, Muthupandian Ashokkumar* c, Francesca Cavalieri* a,b
Affiliation: aDepartment of Chemical Sciences and Technologies, University of Rome “Tor Vergata”, 00133 Rome, Italy bSchool of Science, RMIT University, Melbourne, VIC 3000, Australia cSchool of Chemistry, University of Melbourne, Melbourne, VIC 3010, Australia
Abstract: Ultrasonically synthesized core-shell microcapsules have found applications in food, drug delivery and cosmetics and are usually composed of synthetic polymers and biopolymers, such as proteins and polysaccharides This study reports on the ultrasonic synthesis of microcapsules using unmodified polysaccharide glycogen nanoparticles derived from various sources such as rabbit liver(RG), oyster(OG), corn(PG) and bovine liver (BG) for the encapsulation of soybean oil and Vitamin D. Depending upon their source, glycogen nanoparticles exhibit differences in size and associated proteins. We optimized the various synthesis parameters such as ultrasonic power, time and concentration of glycogens and the oil phase to obtain stable core-shell microcapsules. It was found that the size of glycogen as well as the protein component play an important role in stabilizing the Pickering emulsion and the microcapsules shell. Hence, this study shows that native glycogen can be successfully used for the encapsulation of the nutrients without any further tedious chemical modification steps.

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