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Multiple Emulsion

Author : Abraham Aserin
ISBN : 0470209259
Genre : Science
File Size : 34.93 MB
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The Comprehensive, Single-Source Reference on Multiple Emulsions In theory, multiple emulsions have significant potential for breakthrough applications in food, agricultural, pharmaceutical, nutraceutical, and cosmetic industries in which they can facilitate the sustained release and transport of active material. However, in practice, multiple emulsions are thermodynamically unstable. This book presents recent findings that can help formulators understand how to enhance their stability. With chapters contributed by leading experts from around the world, it covers the definition and properties of multiple emulsions, their formation and stability, and potential applications, with an emphasis on medical and pharmaceutical applications. In one definitive resource, it presents recent findings and achievements in the field, including: New theoretical approaches and modeling to characterize the transport mechanism Droplet size reduction and increased shelf life stability through the use of polymeric amphiphiles and complex adducts The use of new emulsification techniques to enhance the monodispersibility of the droplets Potential applications in drug delivery systems where clinical studies have proven their efficacy This is a core, hands-on reference for surface and colloid scientists, physical chemists, chemical engineers, soft materials scientists, food chemists, controlled release scientists, and pharmaceutical scientists in drug delivery applications, as well as for graduate students in these disciplines. The editor and contributors hope this logical consolidation of current information will further the understanding of multiple emulsions and lead to new, practical applications.
Category: Science

Colloids In Drug Delivery

Author : Monzer Fanun
ISBN : 1439818266
Genre : Medical
File Size : 65.48 MB
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Colloidal drug delivery systems present a range of therapeutic benefits in the treatment of a number of challenging conditions, allowing researchers to cross barriers that have previously prevented efficient treatment while offering improved and more targeted absorption. Summarizing recent research in the field, Colloids in Drug Delivery assembles the work of 65 of the world’s leading colloid scientists who examine the full spectrum of this rapidly emerging science, from pure to applied, most of it drawn from their own experience and research. The book begins by examining the basics of surfactant and polymer surface activity and self-assembly, the various types of structures formed by such compounds, and their use in drug delivery and biotechnology. It examines the development of controlled and targeted delivery systems by utilizing the various properties of colloids before moving on to discuss various applications and fields of research. Topics discussed include: The use of hard, soft, and macromolecular colloidal drug delivery systems formed by surfactants, polymers, proteins, and lipids Recent advances in procolloidal systems, self-emulsifying drug delivery systems, and aerosol applications to pharmaceutical drug delivery Colloidal nanocarriers for imaging applications and the treatment of dental and periodontal diseases Classification and application of colloidal drug delivery systems in tumor targeting The use of colloids for improved nasal, ocular, vaginal, oral, buccal, gastrointestinal, and colon drug delivery Examining topics necessary to the critical evaluation of a drug candidate’s potential for delivery, the book also describes the preparation, classification, interfacial activity, surface modifications and influence on particle characteristics, drug delivery, and drug targeting. Each chapter in this expansive volume explains why a particular system is used for the intended application, how it is made, and how it behaves. All those concerned with the research, development, and manufacture of drugs will find this a valuable reference, offering a wealth of research upon which they can build.
Category: Medical

Uk Colloids 2011

Author : Victor Starov
ISBN : 9783642289743
Genre : Technology & Engineering
File Size : 57.85 MB
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UK Colloids 2011 - the first multi-day conference on the topic of colloid science held in the UK for many years, jointly organized by the RSC Colloid and Interface Science Group and the SCI Colloid and Surface Science Group. The conference had over 250 delegates, from all across the world – good representation from Japan, China, Australia, USA, France, Germany, Holland, Sweden, Spain, Poland, Georgia – as well as a substantial number of UK based researchers. This Special Issue of “Progress in Colloid and Polymer Science” collects together a selection of 20 papers, mostly presented during the Conference. The papers included cover the wide variety of topics from fundamentals in colloid and interface science to industrial applications. The current Special Issue also reflects the international character of the Conference.
Category: Technology & Engineering

Advances In Food Colloids

Author : E. Dickinson
ISBN : 0751402036
Genre : Technology & Engineering
File Size : 47.34 MB
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The field of food colloids is concerned with the physical chemistry of food systems viewed as assemblies of particles and macromolecules in various stages of supramolecular and microscopic organization. Butter, cheese, ice cream, margarine mayonnaise and yogurt are all examples of food colloids. This book describes experimental and theoretical developments in the field over the past 10-15 years. The authors have tried to strike a reasonable balance between theory and experiment, between principles and applications, and between molecular and physical approaches to the subject.
Category: Technology & Engineering

Hydrophile Lipophile Balance Of Surfactants And Solid Particles

Author : Pyotr M Kruglyakov
ISBN : 0080534333
Genre : Technology & Engineering
File Size : 56.85 MB
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This book considers the different concepts of hydrophile-lipophile balance (HLB) of surfactants and solid particles and the main physicochemical properties of surfactant and solid interfaces which are used to definite the hydrophile-lipophile balance. The book comprehensively analyses all interfacial and bulk properties of surfactants used for the determination of HLB (such as interfacial tension, distribution coefficient, adsorption, surface pressure, surfactants solubility, structure characteristics, distribution between heteropolar phases, micellar formation, chromatographic characteristics, phase separation in emulsions, phase inversion temperature, formation of three phase systems). The central point of the book is the energetic interpretation of the balance, i.e. the hydrophile-lipophile ratio. At the same time the HLB-number systems of Griffin and Davies and other independant methods of the hydrophile-lipophile balance definitions are discussed: PIT, polarity indexes, surfactant affinity difference etc. The possibility of application of the different characteristics of the hydrophile-lipophile balance as a criterion of phase inversion in emulsions and microemulsion systems water-oil-surfactant are considered. For the first time the different methods of the hydrophile-lilophile balance definition for solid particles in compact and dispersed form are suggested by the author. The use of hydrophile-lipophile characteristics of solid particles as a criterion of phase inversion in emulsion stabilisation and for other applications is discussed.
Category: Technology & Engineering

Microencapsulation And Microspheres For Food Applications

Author : Leonard M.C. Sagis
ISBN : 9780128004180
Genre : Technology & Engineering
File Size : 74.40 MB
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Microencapsulation and Microspheres for Food Applications is a solid reflection on the latest developments, challenges, and opportunities in this highly expanding field. This reference examines the various types of microspheres and microcapsules essential to those who need to develop stable and impermeable products at high acidic conditions. It’s also important for the novel design of slow releasing active compound capsules. Each chapter provides an in-depth account of controlled release technologies, evidence based abstracts, descriptions of chemical and physical principals, and key relevant facts relating to food applications. Written in an accessible manner, the book is a must have resource for scientists, researchers, and engineers. Discusses the most current encapsulation technology applied in the food industry, including radiography, computed tomography, magnetic resonance imaging, and dynamic NMR microscopy Presents the use of microsphere immunoassay for mycotoxins detection Covers a broad range of applications of microcapsules and microspheres, including food shelf-life, pesticides for crop protection, and nanoencapsulated bacteriophage for food safety
Category: Technology & Engineering

Emulsion Formation And Stability

Author : Tharwat F. Tadros
ISBN : 9783527647965
Genre : Science
File Size : 59.43 MB
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The importance of emulsification techniques, their use in the production of nanoparticles for biomedical applications as well as application of rheological techniques for studying the interaction between the emulsion droplets is gathered in this reference work. Written by some of the top scientists within their respective fields, this book covers such topics as emulsions, nano-emulsions, nano-dispersions and novel techniques for their investigation. It also considers the fundamental approach in areas such as controlled release, drug delivery and various applications of nanotechnology.
Category: Science

Multiple Emulsionen

Author : Gerald Muschiolik
ISBN : 3899473396
Genre : Emulsions
File Size : 42.69 MB
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Category: Emulsions

Emulsion Science

Author : Fernando Leal-Calderon
ISBN : 9780387396835
Genre : Science
File Size : 74.26 MB
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This book gives an overview of the most recent advances in emulsion science, from the preparation to the destruction of these materials. This book is intended for a large audience, from undergraduate students to senior scientists. A progressive and didactic approach is proposed for that purpose. The concepts presented should provide a useful guidance for formulating and controlling the lifetime of emulsion at laboratory and industrial scales. For easy comprehension, the text is illustrated by more than 70 figures. This book is a new edition of the one published in the series "Springer Tracts in Modern Physics (vol. 181)". The main difference is a more didactic approach which will allow the non-specialist reader to capture the essential concepts. We shall also incorporate the very last research results (solid-stabilized emulsions, metastability) and novel applications (Biotechnology).
Category: Science

New Products And Applications In Surfactant Technology

Author : D. R. Karsa
ISBN : 1850758727
Genre : Surface active agents
File Size : 33.61 MB
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This first volume in the series includes detailed chapters on cationic, polymeric, ′hybrid′ fluorocarbon / hydrocarbon surfactants and biosurfactants, as well as on esters of alpha–sulphonated fatty acids. The production, physico–chemical properties and applications of these products are discussed in depth. Other chapters focus on specific applications, including a Japanese perspective on surfactants for personal–care products and an account of the use of surfactant systems for the environmental remediation of contaminated land. The biodegradability, aquatic toxicity and oestrogenic activity of alkylphenol ethoxylates continue to be a focus of health, safety and environmental concern and a status report is therefore an essential part of this review. Greater understanding of the physical behaviour of surfactants in solution is also an important element of the volume. Several chapters focus on this aspect of particular products and a separate chapter is devoted to the subject of multiple emulsions.
Category: Surface active agents