Bøger udgivet af RSC Publishing

This volume brings together internationally-leading researchers in this field to explore and exchange ideas about the key aspects of surface science.

Ayurvedic Medicine, or Ayurveda, is a traditional Indian health care system. Research into the medicinal plants utilised in Ayurveda is becoming a global endeavour, and large pharmaceutical companies are investing in novel drug discovery from Ayurvedic sources as a number of clinical studies have demonstrated efficacy of natural products from Ayurvedic plant extracts against common ailments such as arthritis and diabetes. Ayurvedic medicine and its components have been well described in the past, but this book represents a comprehensive source on the biochemistry and mechanisms of the pharmacological effects of natural products from Ayurvedic sources. This book is a valuable resource for researchers in natural products and alternative sources of bioactive compounds in drug discovery, as well as pharmaceutical experts and those in industry.

As a result of their unique physical properties, biological membrane mimetics such as biopolymers are used in a broad range of scientific and technological applications. This comprehensive book covers new applications of biopolymers in the research and development of industrial scale nutraceutical and functional food grade products. All the major food biopolymers are included, from plant, animal and marine sources. Coverage also includes biopolymer-based drug delivery mechanisms intended for biological applications such as bio-detection of pathogens, fluorescent biological labels, and drug and gene delivery.This is the first interdisciplinary book to address this area specifically and is essential reading for those who produce the functional biopolymer materials as well as those who seek to incorporate them into appropriate nutraceutical, food and drug delivery products.

Cosmetics manufacture is a dynamic and vibrant industry with companies varying from the very small scale, working in their own home, to much larger enterprises. With such variable companies there is the risk of equally variable quality in manufacturing. The International Organization for Standards (ISO) provides guidelines on good manufacturing processes for the cosmetics industry. However, not everyone working in cosmetics has a scientific or engineering backgrounds and understanding and meeting the ISO requirements can be daunting. Whether you are a small business just starting out or an established company looking to expand, Making Quality Cosmetics will guide you through the requirements of the ISO standard. Calling on more than 35 years of experience in the cosmetics sector the author covers every aspect of the manufacturing set up and process, as well as discussing other regulations that may need to be considered, especially in larger facilities. With technical advice ranging from choosing equipment and raw materials, to assessing and auditing contractors this book will help you make sure your products are of the highest quality.

Smart materials stimulated by chemical or by logical signals hold promise for many applications, including new sensors and actuators for medicine, environmental and process control. In contrast to other books on responsive materials which are restricted to sensing, this volume not only highlights fundamental chemical and physical principles but also focuses on the use of smart materials for applications such as drug delivery, wound healing, cell adhesion, tuneable vesicles, surface control, smart paints and glasses, separations, oil recovery and artificial muscles. In this completely updated and expanded edition, readers are introduced to the area with chapters reflecting the enormous expansion of the field in recent years. Different responsive material systems will be covered including hydrogels, membranes, thin layers, polymer brushes, chemomechanical and imprinted polymers, nanomaterials and silica particles. With contributions from internationally recognised experts, the book will appeal to graduate students and researchers in academia, healthcare and industry interested in functional materials and their applications.

Many studies have highlighted the importance of discourse in scientific understanding. Argumentation is a form of scientific discourse that plays a central role in the building of explanations, models and theories. Scientists use arguments to relate the evidence that they select from their investigations and to justify the claims that they make about their observations. The implication is that argumentation is a scientific habit of mind that needs to be appropriated by students and explicitly taught through suitable instruction.Edited by Sibel Erduran, an internationally recognised expert in chemistry education, this book brings together leading researchers to draw attention to research, policy and practice around the inclusion of argumentation in chemistry education. Split into three sections: Research on Argumentation in Chemistry Education, Resources and Strategies on Argumentation in Chemistry Education, and Argumentation in Context, this book blends practical resources and strategies with research-based evidence. The book contains state of the art research and offers educators a balanced perspective on the theory and practice of argumentation in chemistry education.

For the first time, this book sets out ways to teach the science of nanochemistry at a level suitable for pre-service and in-service teachers in middle and secondary school. The authors draw upon peer-reviewed science education literature for experiments, activities, educational research, and methods of teaching the subject.The book starts with an overview of chemical nanotechnology, including definition of the basic concepts in nanoscience, properties, types of nanostructured materials, synthesis, characterization, and applications. It includes examples of how nanochemistry impacts our daily lives. This theoretical background is an address for teachers even if they do not have enough information about the subject of nanoscale science. Subsequent chapters present best practices for presenting the material to students in a way that improves their attitudes and knowledge toward nanochemistry and STEM subjects in general. The final chapter includes experiments designed for middle and high school students.From basic science through to current and near-future developments for applications of nanomaterials and nanostructures in medicine, electronics, energy, and the environment, users of the book will find a wealth of ideas to convey nanochemistry in an engaging way to students.

Asymmetric autocatalysis is a reaction in which chiral compound acts as a chiral catalyst for its own production. The process is a catalytic automultiplication of the chiral compound leading to an end product with a high enantiomeric excess. It has advantages over non-autocatalytic reactions because the amount of catalyst increases and no loss or deterioration of the catalyst is observed. Additionally, because the catalyst and product have the same structure, the separation of product from the catalyst is not necessary.Asymmetric Autocatalysis provides a comprehensive introduction to the topic of autocatalysis and an in-depth review of the current state of the research. Edited by a team including Professor Kenso Soai, who first described these types of reaction, and written by experts from around the world this book is a great resource for anyone with an interest in organic synthesis, catalysis and chirality.

Over the last two decades, advances in the design, miniaturization, and analytical capabilities of portable X-ray fluorescence (pXRF) instrumentation have led to its rapid and widespread adoption in a remarkably diverse range of applications in research and industrial fields. The impetus for this volume was that, as pXRF continues to grow into mainstream use, analysts should be increasingly empowered with the right information to safely and effectively employ pXRF as part of their analytical toolkit. This volume provides introductory and advanced-level users alike with readings on topics ranging from basic principles of pXRF and qualitative and quantitative approaches, through to machine learning and artificial intelligence for enhanced applications. It also includes fundamental guidance on calibrations, the mathematics of calculating uncertainties, and an extensive reference index of all elements and their interactions with X-rays. Contributing authors have provided a wealth of information and case studies in industry-specific chapters. These sections delve into detail on current standard practices in industry and research, including examples from agricultural and geo-exploration sectors, research in art and archaeology, and metals industrial and regulatory applications. As pXRF continues to grow in use in industrial and academic settings, it is essential that practitioners continue to learn, share, and implement informed and effective use of this technique. This volume serves as an accessible guidebook and go-to reference manual for new and experienced users in pXRF to achieve this goal.

There is growing interest in the food, supplements, cosmetics, and pharmaceutical industries in improving the healthiness of their products by incorporating lipophilic bioactive substances like oil-soluble vitamins (A, D and E), omega-3 fatty acids, and nutraceuticals (carotenoids, curcuminoids and flavonoids). However, there are many challenges that need to be overcome due to their poor water-solubility, chemical stability, and bioavailability. For this reason, there is interest in the development of effective encapsulation technologies to increase the efficacy of lipophilic bioactives. This book reviews the encapsulation systems currently available for delivering lipophilic bioactives, including their preparation, functionality, and application range, including nanoemulsions, emulsions, Pickering emulsions, HIPEs, microgels, organogels and liposomes. Chapters 1-2 review the biological activity of delivery systems and lipophilic bioactives. Chapters 3-5 describe the materials and preparation methods used to assemble delivery systems. Chapters 6-17 focus on the formation and application of different kinds of delivery systems. Chapter 18 discusses future trends in the development of bioactive delivery systems. Edited and authored by world renowned scholars, the book provides a state-of-the-art overview of the design, fabrication, and utilization of delivery systems for bioactives that will be useful for academic, government, and industrial scientists in fields such as pharmaceuticals, cosmetics, agriculture, chemical engineering, nutrition, and foods.

The use of spectroscopy in food analysis is growing and this informative volume presents the application of advanced spectroscopic techniques in the analysis of food quality. The spectroscopic techniques include visible and NIR spectroscopy, FTIR spectroscopy and Laser-induced Breakdown Spectroscopy (LIBS). A wide range of food and beverage items are covered including tea, coffee and wine. The chapters will highlight the potential of spectroscopic techniques to enrich the food quality analysis experience when coupled with artificial intelligence and machine learning and provide a good opportunity to assess and critically lay out any future prospects.Different chapters have been written using a bottom-up approach that suits the needs of novice researchers and at the same time offers a smooth read for professionals. The book will also be of use to those developing spectroscopic facilities providing a useful cross comparison of the various techniques.

The importance of processing and packaging food items so that they are safe for the consumer cannot be underestimated. Sensors have an important role to play in this, and sensing technologies have attracted the attention of the scientific community in view of increasing environmental and societal concerns. This edited volume presents a collection of ten chapters discussing the current trends of bio- and nano-sensing technologies for processing and packaging of food items. Starting with an overview chapter which introduces the field, the book goes on to discuss novel applications related to preservation, authenticity and safety of foods. Intelligent food packaging and nano-based sensing are covered, and the book finishes with a look towards the pros and cons of how this will revolutionise sensing throughout the food sector. It will be of benefit to scientists and practising professionals conducting research in the areas of food processing, contamination and food safety, and academic researchers and graduate students studying food technology or food engineering.

This volume brings together world-leaders in the field of bioinorganic chemistry to discuss current mechanistic insights into the function of metalloenzymes.

Ozone has been actively and widely employed in water and wastewater treatment, but the utilization of ozone alone is insufficient for purifying and disinfecting water to the emission standard of real-world situations because of its selective oxidation behaviour. With the assistance of catalysts (especially heterogeneous catalysts) and coupling with other effective technologies such as the Fenton process, photocatalysis, electrocatalysis, ultrasound, microwave, and ceramic membranes, ozone can be effectively activated into more powerful reactive oxygen species (especially hydroxyl radicals). These combined technologies lead to an enhanced efficiency and complete mineralization capability that open up the method for more practical applications.Advanced Ozonation Processes for Water and Wastewater Treatment introduces the state-of-the-art catalysts used in catalytic ozonation and various combined processes with ozone. The reaction mechanisms, process kinetics, structure-property-activity relationships of catalysts, effects of operation parameters in these processes and the present state of practical applications and future trends are also discussed, making this a useful reference both for water treatment professionals and for those researching ozonation processes.

Nanotechnology is a promising technique that can facilitate sustainability across a wide range of areas. By fabricating materials into nanometre-scale, nanotechnology has facilitated an efficient, economically, and environmentally acceptable solution for waste treatment and energy production. This book illustrates how green nanotechnology is being used to promote sustainability, including applications in environmental remediation and energy optimization. First, a comprehensive discussion of the latest advances to address the global challenges in water purification, CO2 management, plastics issue, food waste valorisation, toxic chemical pollutes, and energy efficiency will be provided. This is followed by the new opportunities that have been created in the production of alternative renewable energy under the premise of low natural resource consumption and minuscule toxicity production. Offering an important reference for the research community to understand more about green nanotechnology and its applications in sustainable development and circular economy.  The book will be of interest to graduate students and researchers in nanotechnology, materials science, sustainability, environmental science, and energy.

By 2030, diabetes will be the 7th leading cause of premature mortality worldwide, according to the World Health Organisation. The application of nanotechnology in medicine holds many possible advantages and over the past few decades, there has been huge progress in its utilisation. Nanotechnology is widely applied for cancer treatment and other diseases but, the use of it for diabetes treatment is now starting to flourish. This book presents the latest developments of nanomedicine for the treatment of different facets of diabetes and related disorders. With a multidisciplinary approach, chapters focus on previously overlooked topics in glucose sensing, insulin delivery and secretion, bioimaging and transplantation of islets. This book is suitable for researchers of nanomedicine, nanotechnology and diabetes looking into the emergence of new approaches for the treatment of this life-threatening disease.

Greenhouse gas removal (GGR) technologies can remove greenhouse gases such as carbon dioxide from the atmosphere. Most of the current GGR technologies focus on carbon dioxide removal, these include afforestation and reforestation, bioenergy with carbon capture and storage, direct air capture, enhanced weathering, soil carbon sequestration and biochar, ocean fertilisation and coastal blue carbon. GGR technologies will be essential in limiting global warning to temperatures below 1.5(deg)C (targets by the IPCC and COP21) and will be required to achieve deep reductions in atmospheric CO2 concentration. In the context of recent legally binding legislation requiring the transition to a net zero emissions economy by 2050, GGR technologies are broadly recognised as being indispensable.This book provides the most up-to-date information on GGR technologies that provide removal of atmosphere CO2, giving insight into their role and value in achieving climate change mitigation targets. Chapters discuss the issues associated with commercial development and deployment of GGRs, providing potential approaches to overcome these hurdles through a combination of political, economic and R&D strategies.With contributions from leaders in the field, this title is an indispensable resource for graduate students and researchers in academia and industry, working in chemical engineering, mechanical engineering and energy policy.