Mircea Vînătoru
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View article: Corrigendum to “A new reactor for process intensification involving the simultaneous application of adjustable ultrasound and microwave radiation” [Ultrason. Sonochem. 77 (2021) 105701]
Corrigendum to “A new reactor for process intensification involving the simultaneous application of adjustable ultrasound and microwave radiation” [Ultrason. Sonochem. 77 (2021) 105701] Open
View article: A simple new approach for mapping an ultrasonic tank for sonochemistry
A simple new approach for mapping an ultrasonic tank for sonochemistry Open
View article: Ultrasound-Assisted Alkaline Pretreatment of Biomass to Enhance the Extraction Yield of Valuable Chemicals
Ultrasound-Assisted Alkaline Pretreatment of Biomass to Enhance the Extraction Yield of Valuable Chemicals Open
As a renewable and sustainable resource, lignocellulosic biomass serves as a crucial raw material for the production of biofuels, biochemicals, and various value-added products. This paper aims to develop and optimize a mild alkaline treat…
View article: Ultrasound Assisted Alkaline Pretreatment of Biomass to Enhance the Extraction Yield of Valuable Chemicals
Ultrasound Assisted Alkaline Pretreatment of Biomass to Enhance the Extraction Yield of Valuable Chemicals Open
Lignocellulosic biomass, an abundant and renewable resource, serves as a crucial raw material for the production of biofuels, biochemicals, and various value-added products. This paper aims to develop and optimize a mild alkaline treatment…
View article: The Efficient Extraction of β-Carotene from Sea Buckthorn Berries Using a Novel Solvent, Fatty Acid Ethyl Esters, and a Combination of Ultrasound and Microwave
The Efficient Extraction of β-Carotene from Sea Buckthorn Berries Using a Novel Solvent, Fatty Acid Ethyl Esters, and a Combination of Ultrasound and Microwave Open
The move towards environmentally friendly processing has been a driving force for research into green methods for the extraction of bioactive compounds from plant materials. In this study, a green and efficient process for the extraction o…
View article: Thoughts About Sars-Cov-2
Thoughts About Sars-Cov-2 Open
Organic and Medicinal chemistry international Journal is an open access journal that is committed to publish the papers on various topics of chemistry, especially synthetic organic chemistry, and pharmacology and various other biological s…
View article: Contents
Contents Open
Chapter 5 Sonochemical synthesis 1 5.1 Historical introduction 1 5.1.1Mechanistic aspects 2 5.1.2Synthetic aspects 5 5.2 Sonochemical synthesis in Coventry 13 5.2.1 The Ullmann reaction 13 5.2.2 Halogenation of aromatics using CuBr 2 suppo…
View article: The Influence of Ultrasound on the Growth of Nannochloris sp. in Modified Growth Medium
The Influence of Ultrasound on the Growth of Nannochloris sp. in Modified Growth Medium Open
The influence of ultrasound irradiation on the algal biomass productivity as well as its oil content and fatty acids profile, grown in a modified Zarrouk medium, i.e., deproteinized whey waste solution, was investigated. The algal samples …
View article: Preface for Volume 1
Preface for Volume 1 Open
This two-volume book "Sonochemistry" is not written in the style that might be expected of such a comprehensive history of the subject.This is because the authors, Tim Mason and Mircea Vinatoru, were active participants in its development …
View article: Contents
Contents Open
View article: Frontmatter
Frontmatter Open
View article: The use of ultrasound (UAE) and microwaves (MAE) to improve the extraction of pharmaceutically active materials from the fruit of the prickly pear (Opuntia ficus-indica)
The use of ultrasound (UAE) and microwaves (MAE) to improve the extraction of pharmaceutically active materials from the fruit of the prickly pear (Opuntia ficus-indica) Open
Background Conventional extraction methods have many limitations and drawbacks, including, prolonged extraction time, present safety concern and environmental risks, with low quality extracts. We report the use of ultrasonic (UAE) and micr…
View article: Transport of Magnetic Polyelectrolyte Capsules in Various Environments
Transport of Magnetic Polyelectrolyte Capsules in Various Environments Open
Microcapsules consisting of eleven layers of polyelectrolyte and one layer of iron oxide nanoparticles were fabricated. Two types of nanoparticles were inserted as one of the layers within the microcapsule’s walls: Fe2O3, ferric oxide, hav…
View article: A parameter study of ultrasound assisted enzymatic esterification
A parameter study of ultrasound assisted enzymatic esterification Open
This work is focused on the study of the esterification parameters for the ultrasound assisted synthesis of isoamyl acetate catalyzed by lipase Lipozyme 435 in a continuous loop reactor. Investigating the influence of different parameters …
View article: Ultrasonic or Microwave Cascade Treatment of Medicinal Plant Waste
Ultrasonic or Microwave Cascade Treatment of Medicinal Plant Waste Open
In this study, we present a strategy for valorizing lignocellulosic wastes (licorice root and willow bark) that result from industrial extraction of active principles using water as green solvent and aqueous NaOH solution. The wastes were …
View article: A Parameter Study of Ultrasound Assisted Enzymatic Esterification
A Parameter Study of Ultrasound Assisted Enzymatic Esterification Open
This work is focused on the study of esterification parameters for the ultrasound assisted synthesis of isoamyl acetate catalyzed by lipase Lipozyme 435 in a continuous loop reactor. Investigating the influence of different parameters show…
View article: Magnetic silica particles functionalized with guanidine derivatives for microwave-assisted transesterification of waste oil
Magnetic silica particles functionalized with guanidine derivatives for microwave-assisted transesterification of waste oil Open
This study aimed to develop a facile synthesis procedure for heterogeneous catalysts based on organic guanidine derivatives superbases chemically grafted on silica-coated Fe 3 O 4 magnetic nanoparticles. Thus, the three organosilanes that …
View article: A new reactor for process intensification involving the simultaneous application of adjustable ultrasound and microwave radiation
A new reactor for process intensification involving the simultaneous application of adjustable ultrasound and microwave radiation Open
View article: Fatty Acid Ethyl Esters (FAEE): A New, Green and Renewable Solvent for the Extraction of Carotenoids from Tomato Waste Products
Fatty Acid Ethyl Esters (FAEE): A New, Green and Renewable Solvent for the Extraction of Carotenoids from Tomato Waste Products Open
Currently there is a drive towards the minimisation and reclamation of valuable materials from the waste products of the food and beverage industry. This can be achieved through the extraction of residual nutraceuticals from such materials…
View article: Jean-Louis Luche and the Interpretation of Sonochemical Reaction Mechanisms
Jean-Louis Luche and the Interpretation of Sonochemical Reaction Mechanisms Open
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 …
View article: Effects of Ultrasounds on Neat nitrobenzene
Effects of Ultrasounds on Neat nitrobenzene Open
Neat nitrobenzene was continuously irradiated at two ultrasonic frequencies: 40 and 200 kHz, under air and argon atmosphere, respectively. Samples taken at intervals of 1, 5, 10 and 24 h were analyzed by GC-MS and decomposition products we…
View article: GROWTH OF NANNOCHLORIS ALGAE IN THE PRESENCE OF MICROWAVES (CONTINUOUS REACTOR)
GROWTH OF NANNOCHLORIS ALGAE IN THE PRESENCE OF MICROWAVES (CONTINUOUS REACTOR) Open
Algae are very effective in capturing the sun's energy, carbon dioxide from the atmosphere, and nutrients to turn them into useful substances (carbohydrates, oils, proteins, etc.). Besides the main metabolites, there are also secondary met…
View article: OPTIMIZATION OF MICROWAVE ASSISTED DELIGNIFICATION OF WOOD RESIDUES BY SURFACE RESPONSE METHODOLOGY
OPTIMIZATION OF MICROWAVE ASSISTED DELIGNIFICATION OF WOOD RESIDUES BY SURFACE RESPONSE METHODOLOGY Open
Efficient processing of vegetal biomass is a great challenge to current research studies. This work is focused on improving the yield of enzymatic hydrolysis of wood residues by removal of lignin using a alkaline wash assisted by microwave…
View article: MICROWAVE AND ULTRASOUNDS TOGETHER – A CHALLENGE
MICROWAVE AND ULTRASOUNDS TOGETHER – A CHALLENGE Open
The literature related to microwave and ultrasound working simultaneously is rather infrequent. The reason is obvious: microwave irradiation is of electromagnetic origin while ultrasound is a mechanical vibration energy. Moreover, the opti…
View article: Ultrasonic, hydrodynamic and microwave biodiesel synthesis – A comparative study for continuous process
Ultrasonic, hydrodynamic and microwave biodiesel synthesis – A comparative study for continuous process Open
At this time biodiesel appears to be a viable proposition as a renewable energy source and an alternative to fossil-based fuels. Following many years of research, the use of process intensification techniques for the production of biodiese…
View article: Intensification of the Enzymatic Esterification Process by Ultrasounds
Intensification of the Enzymatic Esterification Process by Ultrasounds Open
Ultrasound application is a method of enhancing the performance of biocatalysts. Enzymes performance is strongly influenced by the nature of the reaction medium. Ultrasounds have the potential to significantly influence the activity of the…
View article: Can sonochemistry take place in the absence of cavitation? – A complementary view of how ultrasound can interact with materials
Can sonochemistry take place in the absence of cavitation? – A complementary view of how ultrasound can interact with materials Open
A hypothesis is advanced for a mechanism by which ultrasound could help to activate chemical reactions, even in the absence of cavitation. It is suggested that the compression phase of an acoustic wave could produce transient solid-like st…
View article: The Effects of Magnetic Nanoparticles Incorporated in Polyelectrolyte Capsules
The Effects of Magnetic Nanoparticles Incorporated in Polyelectrolyte Capsules Open
Polyelectrolyte multilayer capsules are synthesized comprising of 12 total layers each containing a single layer of iron oxide nanoparticles in shells 4, 6, 8 or 10. A protein-labelled dye is embedded in the calcium carbonate template core…
View article: Sonoelectrochemical degradation of formic acid using Ti/Ta 2 O 5 -SnO 2 electrodes
Sonoelectrochemical degradation of formic acid using Ti/Ta 2 O 5 -SnO 2 electrodes Open
View article: A possible general mechanism for ultrasound-assisted extraction (UAE) suggested from the results of UAE of chlorogenic acid from Cynara scolymus L. (artichoke) leaves
A possible general mechanism for ultrasound-assisted extraction (UAE) suggested from the results of UAE of chlorogenic acid from Cynara scolymus L. (artichoke) leaves Open