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Molecular Self-assembly in Nanoscience and Nanotechnology

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ISBN: 9789535131571 9789535131588 Year: Pages: 142 DOI: 10.5772/65607 Language: English
Publisher: IntechOpen
Subject: Chemistry (General)
Added to DOAB on : 2019-10-03 07:51:50

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Self-assembly is a common principle in molecular fabrication of natural and synthetic systems and has many important applications in the fields of nanoscience and nanotechnology. This book provides clear explanations of the principles of self-assembly with the limitations along with examples and research-based results with discussion for students, researchers, and professions.

Properties and Uses of Microemulsions

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ISBN: 9789535131717 9789535131724 Year: Pages: 184 DOI: 10.5772/63187 Language: English
Publisher: IntechOpen
Subject: Chemistry (General)
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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.

Application and Characterization of Surfactants

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ISBN: 9789535133254 9789535133261 Year: Pages: 316 DOI: 10.5772/65591 Language: English
Publisher: IntechOpen
Subject: Chemistry (General)
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The surfactants are among the materials that have a significant importance in everyday life of human. The rapid growth in science and technology has opened new horizons in a very wide range, in which the surfactants play a major and vital role. Hence, the increasing number of applications as well as arising environmental issues has made this relatively old topic still a hot research theme. In the first section of this book, some of the applications of surfactants in various fields such as biology and petroleum industry, as well as their environmental effects, are described. In Section 2 some experimental techniques used for characterization of the surfactants have been discussed.

Redox - Principles and Advanced Applications

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ISBN: 9789535133933 9789535133940 Year: Pages: 250 DOI: 10.5772/66005 Language: English
Publisher: IntechOpen
Subject: Chemistry (General)
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Redox reactions are central to the major element cycling, many cell cycles, many chemisorption and physisorption processes, trace element mobility from rocks and sediments toward wells, aquifers, trace element toxicity toward life forms, and most remediation schemes including water treatments; over the last three decades, the field has attracted a lot of scientists, and a great deal of researches has been done in redox chemistry. This book provides a very broad overview of the state of the art of understanding redox processes, which starts with giving a concise introduction that describes the origin, historical background, and the development of the redox definitions. The book is organized into two sections that include ten chapters and introduces, in Section 1, generalized electron balance theory and its applications in electrolytic redox systems, redox-active molecules and its applications in device memory, fundamentals and applications of flow batteries and their integration into antidirect current, and donor acceptor titrations of displacement and electronic transference. Section 2 introduces redox in biological processes, including roles of reactive oxygen species in respiration, metabolism, and regulations, and redox in physiological processes as redox-sensitive TRP channels TRPA1 and TRPM2. All chapters are written by different authors (with the exception of Chapter 1 [Introduction]). This clearly reflects the broad range of topics that have been covered by experts in the field.

Advanced Chemical Kinetics

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ISBN: 9789535138150 9789535138167 9789535140313 Year: Pages: 224 DOI: 10.5772/68089 Language: English
Publisher: IntechOpen
Subject: Chemistry (General)
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The book on Advanced Chemical Kinetics gives insight into different aspects of chemical reactions both at the bulk and nanoscale level and covers topics from basic to high class. This book has been divided into three sections: (i) ""Kinetics Modeling and Mechanism,"" (ii) ""Kinetics of Nanomaterials,"" and (iii) ""Kinetics Techniques."" The first section consists of six chapters with a variety of topics like activation energy and complexity of chemical reactions; the measurement of reaction routes; mathematical modeling analysis and simulation of enzyme kinetics; mechanisms of homogeneous charge compression ignition combustion for the fuels; photophysical processes and photochemical changes; the mechanism of hydroxyl radical, hydrate electron, and hydrogen atom; and acceptorless alcohol dehydrogenation. The understanding of the kinetics of nanomaterials, to bridge the knowledge gap, is presented in the second section. The third section highlights an overview of experimental techniques used to study the mechanism of reactions.

Liquid Crystals - Recent Advancements in Fundamental and Device Technologies

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ISBN: 9789535138716 9789535138723 9789535140276 Year: Pages: 274 DOI: 10.5772/68030 Language: English
Publisher: IntechOpen
Subject: Chemistry (General)
Added to DOAB on : 2019-10-03 07:51:51

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Liquid crystals exhibit amazingly interesting properties that make them indispensable for several technological applications. The book Liquid Crystals - Recent Advancements in Fundamental and Device Technologies is aimed to focus on various aspects of research and development that liquid crystal mediums have come across in recent years. This would be ranging from the physical and chemical properties to the important applications that the liquid crystals have in our everyday life. It is expected that the book will make the expert researchers to be abreast of recent research advancements, whereas the novice researchers will benefit from both the conceptual understanding and the recent developments in the area. Multitudes of research themes and directions pivoted to liquid crystals remain the essence, which the readers would get the glimpse of and move ahead for further investigations.

Dendrimers - Fundamentals and Applications

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ISBN: 9781789230581 9781789230598 Year: Pages: 174 DOI: 10.5772/intechopen.68738 Language: English
Publisher: IntechOpen
Subject: Chemistry (General)
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Dendrimers are defined as nanoscale macromolecules having a particular architecture consisting of treelike arms or branches. They are characterized by special properties that make them promising candidates in medicine, biology, materials science, synthetic organic chemistry, biotechnology, environmental engineering, optics, electronics, catalysis, electrochemistry, photochemistry, and sensors and even for production of cosmetics and personal care products. The dendrimers research field is growing day by day, and scientists are exploring new synthesis and functionalization methods in order to improve and to determine new properties and thus new applications. The main purpose of this book is to highlight the issues regarding properties and applications of dendrimers in the field of biology, medicine, liquid crystal devices, electronics, quantum devices, and self-healing technology.

Density Functional Calculations - Recent Progresses of Theory and Application

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ISBN: 9781789231328 9781789231335 Year: Pages: 272 DOI: 10.5772/intechopen.68548 Language: English
Publisher: IntechOpen
Subject: Chemistry (General)
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Density functional theory (DFT) ranks as the most widely used quantum mechanical method and plays an increasingly larger role in a number of disciplines such as chemistry, physics, material, biology, and pharmacy. DFT has long been used to complement experimental investigations, while now it is also regarded as an indispensable and powerful tool for researchers of different fields. This book is divided into five sections that include original chapters written by experts in their fields: ""Method Development and Validation,"" ""Spectra and Thermodynamics,"" ""Catalysis and Mechanism,"" ""Material and Molecular Design,"" and ""Multidisciplinary Integration."" I would like to express my sincere gratitude to all contributors and recommend this book to both beginners and experienced researchers.

Introducing the Effective Mass of Activated Complex and the Discussion on the Wave Function of this Instanton

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ISBN: 9781789234800 9781789234817 Year: Pages: 104 DOI: 10.5772/intechopen.70734 Language: English
Publisher: IntechOpen
Subject: Chemistry (General)
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Heterogeneous kinetics plays an important role in many scientific disciplines and industrial branches such as physical chemistry, materials science, chemical industry, ceramic industry, etc. Although many excellent books on theories and methods can be found, the aim of this book is to provide an unconventional insight into the heterogeneous kinetics and properties of the activated complex. The introduction of the effective mass of this instanton enables to calculate many other properties, such as the most probable speed of activated complex, the momentum, the energetic density, the mass flux, etc., and to define two quantum numbers of activated state, i.e., the activation energy and the momentum. The monograph is organized into three chapters. The first of them deals with a short historical background, which introduces the beginning of chemical kinetics in the historical context. The second chapter is dedicated to the transition state theory, and the third one explains the concept of effective mass and effective rate of activated state as well as other properties of activated complex.

Science and Technology Behind Nanoemulsions

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ISBN: 9781789235708 9781789235715 Year: Pages: 206 DOI: 10.5772/intechopen.71147 Language: English
Publisher: IntechOpen
Subject: Chemistry (General)
Added to DOAB on : 2019-10-03 07:51:51

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This book covers new micro-/nanoemulsion systems in technology that has developed our knowledge of emulsion stability. The emulsion system is a major phenomenon in well-qualified products and has extensive usages in cosmetic industry, food industry, oil recovery, and mineral processes. In this book, readers will find recent studies, applications, and new technological developments on fundamental properties of emulsion systems.

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