Автор: Polavarapu Название: Chiroptical Spectroscopy: Fundamentals and Applications ISBN: 1420092464 ISBN-13(EAN): 9781420092462 Издательство: Taylor&Francis Рейтинг: Цена: 193950.00 T Наличие на складе: Нет в наличии. Описание: This book details chiroptical spectroscopic methods: electronic circular dichroism (ECD), optical rotatory dispersion (ORD), vibrational circular dichroism (VCD), and vibrational Raman optical activity (VROA). For each technique, the text presents experimental methods for measurements and theoretical methods for analyzing the experimental data. It also includes a set of experiments that can be adopted for undergraduate teaching laboratories. Each chapter is written in an easy-to-follow format for novice readers, with necessary theoretical formalism in appendices for advanced readers.
Автор: Mohd. Shahid; Anwar Shahzad; Abida Malik; Aastha S Название: Recent Trends in Biotechnology and Therapeutic Applications of Medicinal Plants ISBN: 9400795556 ISBN-13(EAN): 9789400795556 Издательство: Springer Рейтинг: Цена: 139310.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: This book provides an overview of advances and recent trends in medicinal plant sciences along with biotechnological interventions that has made it increasingly feasible to exploit these natural resources and transform traditional medicines into modern drugs.
Автор: Marta Cristina Teixeira Duarte; Mahendra Rai Название: Therapeutic Medicinal Plants: From Lab to the Market ISBN: 1482254034 ISBN-13(EAN): 9781482254037 Издательство: Taylor&Francis Рейтинг: Цена: 193950.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: Medicinal plants have been used in the prevention, diagnosis, and elimination of diseases based on the practical experience of thousands of years.
Автор: Tharwat F. Tadros Название: Emulsions: Formation, Stability, Industrial Applications ISBN: 3110452170 ISBN-13(EAN): 9783110452174 Издательство: Walter de Gruyter Цена: 74320.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: Chapter 1 General IntroductionDefinition of emulsions and the role of the emulsifier. Classification based on the nature of the emulsifier. Classification based on the structure of the system. General instability problems with emulsions : creaming/sedimentation, flocculation, Ostwald ripening, coalescence and phase inversion. Importance of emulsions in various industrial applications. Chapter 2 Thermodynamics of Emulsion Formation and BreakdownApplication of the second law of thermodynamics for emulsion formation : Balance of energy and entropy and non-spontaneous formation of emulsions. Breakdown of the emulsion by flocculation and coalescence in the absence of an emulsifier. Role of the emulsifier in preventing flocculation and coalescence by creating an energy barrier resulting from the repulsive energies between the droplets. Chapter 3 Interaction Forces between Emulsion DropletsVan der Waals attraction and its dependence on droplet size, Hamaker constant and separation distance between the droplets. Electrostatic repulsion resulting from the presence of electrical double layers and its dependence on surface (or zeta) potential and electrolyte concentration and valency. Combination of the van der Waals attraction with double layer repulsion and the theory of colloid stability. Steric repulsion resulting from the presence of adsorbed non-ionic surfactants and polymers. Combination of van der Waals attraction with steric repulsion and the theory of steric stabilisation. Chapter 4 Adsorption of Surfactants at the Oil/Water InterfaceThermodynamic analysis of surfactant adsorption and the Gibbs adsorption isotherm. Calculation of the amount of surfactant adsorption and area per surfactant molecule at the interface. Experimental techniques for measuring the interfacial tension. Chapter 5 Mechanism of Emulsification and the Role of the EmulsifierDescription of the factors responsible for droplet deformation and its break-up. Role of surfactant in preventing coalescence during emulsification. Definition of the Gibbs dilational elasticity and the Marangoni effect in preventing coalescence. Chapter 6 Methods of EmulsificationPipe flow, static mixers and high speed stirrers (rotor-stator mixer). Laminar and turbulent flow. Membrane emulsification. High pressure homogenisers and ultrasonic methods. Chapter 7 Selection of EmulsifiersThe hydrophilic-lipophilic-balance (HLB) and its application in surfactant selection. Calculation of HLB numbers and the effect of the nature of the oil phase. The phase inversion temperature (PIT) method for emulsifier selection. The cohesive energy ratio method for emulsifier selection. Chapter 8 Creaming/Sedimentation of Emulsions and its preventionDriving force for creaming/sedimentation: effect of gravity, droplet size and density difference between the oil and continuous phase. Calculation of the rate of creaming/sedimentation in dilute emulsions. Influence of increase of the volume fraction of the disperse phase on the rate of creaming/sedimentation. Reduction of creaming/sedimentation: Balance of the density of the two phases, reduction of droplet size and effect of addition of ''thickeners'. Chapter 9 Flocculation of Emulsions and its PreventionFactors affecting flocculation. Calculation of fast and slow flocculation rate. Definition of stability ratio and its dependence on electrolyte concentration and valency. Definition of the critical coagulation concentration and its dependence on electrolyte valency. Reduction of flocculation by enhancing the repulsive forces. Chapter 10 Ostwald Ripening and its ReductionFactors responsible for Ostwald ripening : difference in solubility between small and large droplets and the Kelvin equation. Calculation of the rate of Ostwald ripening. Reduction of Ostwald ripening by incorporation of a small amount of highly insoluble oil. Reduction of Ostwald ripening by the use of strongly adsorbed polymeric surfactant and enhancement of the Gibbs elasticity. Chapter 11 Emulsion Coalescence and its PreventionDriving force for emulsion coalescence : Thinning and disruption of the liquid film between the droplets. The concept of disjoining pressure for prevention of coalescence. Methods for reduction or elimination of coalescence : Use of mixed surfactant films, use of lamellar liquid crystalline phases and use of polymeric surfactants. Chapter 12 Phase Inversion and its PreventionDistinction between catastrophic and transient phase inversion. Influence of the disperse volume fraction and surfactant HLB number. Explanation of the factors responsible for phase inversion. Chapter 13 Characterisation of EmulsionsMeasurement of droplet size distribution : Optical microscopy and image analysis. Phase contrast and polarising microscopyDiffraction methods. Confocal laser microscopy. Back scattering methods Chapter 14 Industrial Application of Emulsions14.1 Application in Pharmacy14.2 Application in Cosmetics 14.3 Application in Agrochemicals14.4 Application in Paints14.5 Application in the Oil Industry
Автор: S. Narasimha Murthy Название: Dermatokinetics of Therapeutic Agents ISBN: 1138114588 ISBN-13(EAN): 9781138114586 Издательство: Taylor&Francis Рейтинг: Цена: 81650.00 T Наличие на складе: Невозможна поставка. Описание:
Novel drug delivery technologies strive to bypass challenging biological layers to elicit desired pharmacological activity. The skin, one of our key defensive barriers, allows certain topically applied substances and toxins to pass. The dermatokinetics of a drug determines the efficacy of treatment of skin disorders.
Presenting the first comprehensive reference on this important area of research, Dermatokinetics of Therapeutic Agents includes a general overview of the theoretical as well as practical aspects of dermatokinetics and addresses the impact of a drug delivery system on the dermatokinetics of drugs. Chapters and illustrations cover introductory aspects and the significance, methods, and models used in dermatokinetic studies of therapeutic agents.
Topics include:
Theoretical Models for Dermatokinetics of Therapeutic Agents
Drug Delivery Approaches to Modulate Dermatokinetics of Drugs
Conventional Methods of Cutaneous Drug Sampling
Cutaneous Microdialysis
Sampling Substrates by Skin Permeabilization
Spectroscopic Techniques in Dermatokinetics Studies
Regulatory Perspective of Dermatokinetic Studies
Название: Computational Medicinal Chemistry Set ISBN: 1782620915 ISBN-13(EAN): 9781782620914 Издательство: Royal Society of Chemistry Рейтинг: Цена: 843270.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: This set provides the latest information on harnessing quantitative and computational methods, including structure-based design, molecular modelling and simulation, for medicinal chemistry.
Автор: Brase Stefan Название: Privileged Scaffolds in Medicinal Chemistry: Design, Synthesis, Evaluation ISBN: 1782620303 ISBN-13(EAN): 9781782620303 Издательство: Royal Society of Chemistry Рейтинг: Цена: 252030.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: This book addresses the various classes of privileged scaffolds and covers the history of their discovery and use.
Автор: Hafiz Ansar Rasul Suleria, Megh R. Goyal, Masood Sadiq Butt Название: Phytochemicals from Medicinal Plants: Scope, Applications, and Potential Health Claims ISBN: 1771887958 ISBN-13(EAN): 9781771887953 Издательство: Taylor&Francis Рейтинг: Цена: 133730.00 T Наличие на складе: Невозможна поставка. Описание: Explores the importance of medicinal plants and their potential benefits for human health. This book looks at bioactive compounds from medicinal plants, the health benefits of bioactive compounds, the applications of plant-based products in the food and pharmaceutical industries.
Автор: Al Malah Kamal I.M. Название: Aspen Plus: Chemical Engineering Applications ISBN: 1119131235 ISBN-13(EAN): 9781119131236 Издательство: Wiley Рейтинг: Цена: 133050.00 T Наличие на складе: Поставка под заказ. Описание:
Facilitates the process of learning and later mastering Aspen Plus(R) with step by step examples and succinct explanations
Step-by-step textbook for identifying solutions to various process engineering problems via screenshots of the Aspen Plus(R) platforms in parallel with the related text
Includes end-of-chapter problems and term project problems
Includes online exam and quiz problems for instructors that are parametrized (i.e., adjustable) so that each student will have a standalone version
Includes extra online material for students such as Aspen Plus(R)-related files that are used in the working tutorials throughout the entire textbook
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