Formulation and optimization of microemulsion systems for bioapplication PDF Download

Author: Kyoung-Hee Oh
Publisher:
ISBN:
Category : Emulsions
Languages : en
Pages : 352

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Author: Maurice Bourrel
Publisher: Editions TECHNIP
ISBN: 9782710809562
Category : Emulsions
Languages : en
Pages : 416

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Book Description
Beginning with P.A. Winsor's fundamental hypothesis on a natural interfacial curvature depending on the values of the formulation variables, this unique book shows scientists how to understand the intrinsic structure of these complex systems and their corresponding physical properties... predict how a change in one formulation variable (surfactant structure, oil structure, aqueous phase composition, temperature, etc.) will modify the microemulsion... and systematically formulate microemulsions for individual applications.This book provides a thermodynamic analysis supporting the existence of natural interfacial curvature... compares the behavior of commercial surfactant mixtures and pure isomeric surfactant molecules in order to point out differences and similarities highly significant for various uses... explains how micelles can evolve smoothly and continuously toward solutions containing large quantities of oil and water... gives procedures for fixing quantitative relationships among formulation variables... plus much more.Illustrated with more than 200 diagrams, tables, and photographs, and completely referenced, this superb volume is essential reading for surfactant, colloid, and physical chemists in both academe and industry, as well as chemical engineers, biotechnologists, and petroleum engineers.Contents: 1. The R-Ratio. 2. Aqueous solutions containing amphiphiles. 3. Nonpolar solutions containing amphiphiles. 4. The phase behavior and properties of solutions containing amphiphiles, organic liquids, and water: micellar solutions. 5. Methods for promoting phase changes. 6. Compensating changes between formulation variables. 7. Solubilization. 8. Thermodynamics of solubilized systems.

Author: Leon Prince
Publisher: Elsevier
ISBN: 0323160409
Category : Science
Languages : en
Pages : 192

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Book Description
Microemulsions: Theory and Practice covers the development of the theory and practice of microemulsion systems. This book is divided into seven chapters that explore the physics and chemistry of microemulsions. This book deals first with the commercial history of microemulsions, from the discovery of carnauba wax emulsions to polymer emulsions. This topic is followed by discussions on the theoretical aspects of microemulsion formulation techniques and the design of other products. The subsequent chapter describes the microemulsion formulation with less solubilizer or emulsifier together with their optical properties. A chapter examines the mixed film theory that explains the dispersions, oil-water interface, and inferences in microemulsions. Another chapter considers the role of microemulsions in micellar solutions and their relations to the concentrations of different compounds. This chapter also looks into the association phenomena of three-component phase equilibria diagrams and liquids crystals to microemulsions. The concluding chapter discusses the role of the capillary and hydrostatic forces on the entrapment of oil in the reservoir and the necessary conditions for the displacement of entrapped oil. The important properties and economic aspects of a microemulsion slug required for the tertiary oil recovery are also covered in this chapter.

Author: Anna Klemmer
Publisher: Cuvillier Verlag
ISBN: 3736948972
Category : Science
Languages : en
Pages : 200

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Book Description
Surfactants were and still are our inconspicuous companions at macroscopic but more often at microscopic scale. Many technologies are only possible due to surfactant applications, which are of constantly growing scientific and industrial interest for approximately 100 years [1]. Hence, since its definition ‘micro emulsion’ by Schulman [2] optically isotropic surfactant formulations and their variations have become a significant part in today’s society. In nowadays’ most popular sector of nanomaterials surfactants are utilised for productions of such via template strategies [3–10]. Organic synthesis benefits from the immensely huge interfacial area of microemulsions resulting in bigger yields which were not possible before [11–21]. Closely related to organic synthesis, pharmaceutical industries enjoy the benefits of drug delivery via e.g. vesicels which play a major role during drug transport into the blood stream [22–27]. Simpler application of surfactants were reported 1984 where cationic surfactants were utilised as stabiliser for antibiotics [28]. Concerning healthier and conscious nutrition microemulsions are applied for reduction of the caloric value of food [29–39]. Also, to contribute to environmental protection exhaust emissions can be reduced by introducing water and surfactants into fuels [40–42]. Surfactant systems or in most cases microemulsions are very adaptable and can therefore be utilised in their most different states. This chapter gives an insightful introduction into the world of microemulsions.

Author: Henri L. Rosano
Publisher: CRC Press
ISBN: 9780824774394
Category : Science
Languages : en
Pages : 464

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Author: Desiree Nedra Karunaratne
Publisher: BoD – Books on Demand
ISBN: 9535131710
Category : Science
Languages : en
Pages : 186

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Book Description
Properties and Uses of Microemulsions is intended to provide the reader with some important applications and features of these systems. The intricate composition of microemulsions has made them applicable in many areas such as cosmetics, pharmaceuticals, food, agriculture, oil recovery, chemical synthesis of nanoparticles, and catalysts. An introductory chapter starts off with the description of these applications followed by methods of characterization. Thereafter, a few practical applications of microemulsions focusing on drug delivery, oil recovery, and formation of nanocatalysts are described followed by the third section discussing the theoretical and physical parameters predicting microemulsion properties. The use of spin-polarized paramagnetic probes, bending energetics, and study of self-propelled motion are some of the physical parameters employed to characterize the microemulsions.

Author: Promod Kumar
Publisher: CRC Press
ISBN: 9780824719791
Category : Science
Languages : en
Pages : 872

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Book Description
Demonstrating methods for overcoming stability issues in paints, wax dispersions, cosmetics, food products, and other industrial applications, this reference probes theoretical and practical issues surrounding microemulsion science and technology. Featuring the work of 51 international experts and containing almost 1000 instructive tables, equations, and illustrations, this book reviews the performance of, and prospects for, experimental methods such as X-ray diffraction, transmission electron microscopy (TEM), light scattering, small angle neutron scattering, viscosimetry, and nuclear magnetic resonance (NMR) to characterize various aspects of the dispersed phase of microemulsions.

Author: Taylor Torres
Publisher: Nova Science Publishers
ISBN: 9781634859066
Category : Science
Languages : en
Pages : 92

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Book Description
In this book, Chapter One summarizes novel observations regarding physicochemical properties, physical and chemical stability, and drug delivery potential of microemulsion hydrogel drug delivery systems, based on comprehensive reviews of the research results from relevant scientific publications. Chapter Two discusses the synthesis and investigation of the properties of hexaferrites obtained by microemulsion techniques. Chapter Three focuses on manufacturing solid lipid nanoparticle dispersions using a microwave assisted microemulsion approach.

Author: Friberg
Publisher: CRC Press
ISBN: 135108304X
Category : Science
Languages : en
Pages : 225

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Book Description
This book describes the microemulsion phenomenon in a systematic manner and not only provides an up-to-date introduction to this topic but aslo serves as the basis for further development in the area.The progress of microemulsion research has taken place in well-defined stages. The introduction period was founded on Schulman‘s original discovery and was, as expected, focused on the interfacial free energy. Because Schulman obtained his microemulsions from a macroemulsion by the addition of a cosurfactant.The present stage is characterized by an extensively enhanced knowledge about structure and dynamics in these systems. This has led to the realization that the structure of the microemulsions is related both to solutions with critical behaviour and long range order structures, the lyotropic liquid crystals. These two aspects have been elucidated independently by the French groups and by the Lund Spectroscopy group.

Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 752

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