Ultrasonication
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Ultrasound in Chemistry
Author: José-Luis Capelo-Martínez
language: en
Publisher: John Wiley & Sons
Release Date: 2009-01-07
This comprehensive reference and handbook covers all aspects of ultrasound for analytical applications. Besides classical extraction techniques, it also provides an overview of ultrasound applications and devotes two chapters to proteomics and polymer technology. From the contents: * Common ultrasonic devices * Elemental speciation * On-line applications * Accelerated extraction of semivolatile and volatile organics * The ultrasonic bath vs. the ultrasonic probe * Liquid-liquid, liquid-solid and solid-liquid extraction * Solid-phase (micro)extraction * Stir bar sorptive extraction * Sonochemistry for organic and inorganic synthesis * Electrochemical applications * Applications to polymer science * Power ultrasound meets proteomics Of great interest to researchers in academia and industry, as well as analytical and natural products chemists, and those working in trace analysis.
Traditional Processing Methods in Ethnopharmacology: Enhancing Therapeutic Effects and Unveiling Mechanisms of Action
Ethnopharmacology investigates traditional medicines derived from diverse plants, animals, and minerals used by cultures worldwide. Traditional processing methods may play a vital role in optimizing therapeutic effects, reducing toxicity, and improving overall properties of medicinal resources. However, the contrary may also be the case if, for example, toxic metabolites are extracted at a higher concentration. These time-honored techniques have been employed for centuries in traditional medicine to create effective and safe remedies. Specialized processing techniques can even alter drug action sites or enhance the functional capabilities of medicinal substances. As interest in TCM and other traditional medicines continues to grow, researchers are striving to comprehend the scientific principles behind these processing methods and refine them for contemporary applications. At the same time, with our increasing understanding of medicinal plants’ chemical profiles, therapeutic benefits, and potential safety risks (including interactions with other medications and direct toxicity), there is a need to improve extraction techniques. Optimized techniques may also reduce the environmental impact of such processing methods (e.g., through reduced periods of decocting).
Preparation, Characterization, Properties, and Application of Nanofluid
Preparation, Characterization, Properties and Application of Nanofluid begins with an introduction of colloidal systems and their relation to nanofluid. Special emphasis on the preparation of stable nanofluid and the impact of ultrasonication power on nanofluid preparation is also included, as are characterization and stability measurement techniques. Other topics of note in the book include the thermophysical properties of nanofluids as thermal conductivity, viscosity, and density and specific heat, including the figure of merit of properties. In addition, different parameters, like particle type, size, concentration, liquid type and temperature are discussed based on experimental results, along with a variety of other important topics. The available model and correlations used for nanofluid property calculation are also included. - Provides readers with tactics on nanofluid preparation methods, including how to improve their stability - Explores the effect of preparation method and stability on thermophysical and rheological properties of nanofluids - Assesses the available model and correlations used for nanofluid property calculation