{"title":"D R Karsa","description":null,"products":[{"product_id":"biodegradability-of-surfactants-book-dr-karsa-9780751402063","title":"Biodegradability of Surfactants","description":"The awareness and development of 'biodegradable' surfactants pre-dates current pressures by the environmental movement by nearly three decades, wherein a responsible industry mutually agreed to replace 'hard', non-biodegradable com­ ponents of household detergents by 'soft', biodegradable alternatives, without course to legislation. The only requirement at that time was for surfactants used in detergents to exhibit a 'primary biodegradability' in excess of 80%; this referring to the disap­ pearance or removal from solution of the intact surface active material as de­ tected by specified analytical techniques. This proved useful, as observed environmental impacts of surfactants, e.g. visible foam on rivers, are associated with the intact molecule. Test methods for 'primary biodegradability' were eventually enshrined in EU legislation for nonionic surfactants (Directive 821242\/EEC, amended 73\/404IEEC) and for anionic surfactants (Directive 8212431EEC, amended 73\/405IEEC). No approved test methods and resultant legislation have been developed for cationic and amphoteric surfactants to date. The environmental classification of chemical substances, which of course includes surfactants, and associated risk assessment utilises a second criterion ­ 'ready biodegradability'. This may be assessed by a number of methods which monitor oxygen uptake (BOD), carbon dioxide production or removal of dis­ solved organic carbon (DOC). Some surfactants which comply with the above Detergents Directive are borderline when it comes to 'ready biodegradability'.","brand":"WoB","offers":[{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":49605917180177,"sku":"GOR007895033","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ NEW \/ INGRAM","offer_id":52336481501457,"sku":"NLS9780751402063","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/0751402060.jpg?v=1750881605"},{"product_id":"chemistry-in-the-oil-industry-vii-book-d-r-karsa-9780854048618","title":"Chemistry in the Oil Industry VII","description":"This book is the latest in a series of respected volumes that provides an up-to-date review of some of the major chemistry topics related to the oil and gas industry. Divided into four sections, it looks in turn at the latest developments in environmental issues, new technology, applications and flow assurance. This reflects the increasingly important role for chemical technologies in offshore, deep water and challenging environments, allied to developments of low environmental impact chemistry. Regulatory strategies are also discussed, from both the governmental and operational perspective. Overall, Chemistry in the Oil Industry VII presents the latest information on developments in the modern oil industry, which will have an impact on future cost-effectiveness and efficiency. It will be a valuable resource for professionals and consultants within the industry, as well as government agencies and laboratory staff.","brand":"WoB","offers":[{"title":"GB \/ NEW \/ INGRAM","offer_id":52150056386833,"sku":"NLS9780854048618","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/9780854048618.jpg?v=1757608824"},{"product_id":"industrial-biocides-book-d-r-karsa-9780854048052","title":"Industrial Biocides","description":"Numerous applications for biocides have been found in fields as diverse as ethical pharmaceuticals and cat litter products. The aim of this book is two-fold: to provide a comprehensive guide to the use of biocides across a range of applications; and to aid in the selection of a biocide that is fit for purpose. It covers a cross-section of traditional measures, novel ideas and innovative developments, as well as addressing the biocides market, the political outlook and future trends of biocide use. With contributions by acknowledged experts in the field, Industrial Biocides is a unique title that will be welcomed by many in industry, including industrial and water chemists, microbiologists, and plant and environment managers.","brand":"WoB","offers":[{"title":"GB \/ NEW \/ INGRAM","offer_id":52331415109905,"sku":"NLS9780854048052","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":53029401657617,"sku":"GOR014705715","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/9780854048052.jpg?v=1758148374"},{"product_id":"chemical-aspects-of-drug-delivery-systems-book-d-r-karsa-9780854047062","title":"Chemical Aspects of Drug Delivery Systems","description":"Despite advances in the development of new drugs, a drug may never reach the target organ, or it may be difficult to achieve the necessary level of drug in the body. Large doses can result in serious side effects and can harm normal, as well as diseased, cells and organs, and for this reason it is vital that controlled release and the targeting of delivery systems must evolve in parallel to drug research. Chemical Aspects of Drug Delivery Systems reflects the modern challenge to devise effective drug delivery and targeting systems, giving particular emphasis to recent innovations in the field. Delivery systems described include carbohydrate derivatives, novel nonionic surfactant vesicles and various polymers, including polyacrylates and aqueous shellac solutions, as well as hydrogels. In addition, many of the key issues, such as the understanding of biosystems and targets and the development of materials to provide the deserved carrier and excipient properties for controlled, targeted drug delivery, are considered in depth. This book will be of equal interest to undergraduate, graduate, researcher and those in the pharmaceutical industries, and it complements two previous RSC Special Publications, Encapsulation and Controlled Release and Excipients and Delivery Systems for Pharmaceutical Formulations.","brand":"WoB","offers":[{"title":"- \/ - \/ INTERNAL","offer_id":52425534669073,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true},{"title":"GB \/ NEW \/ INGRAM","offer_id":52425535684881,"sku":"NLS9780854047062","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/9780854047062.jpg?v=1759155103"},{"product_id":"encapsulation-and-controlled-release-book-d-r-karsa-9781855738201","title":"Encapsulation and Controlled Release","description":"Encapsulation and controlled release combines basic information on the subject with details of the latest research, making it suitable for both newcomers to the field and those with experience of encapsulation technology. It will also be of great interest to those working on water-soluble or dispersible polymers, as well as application chemists and biochemists in diverse areas.","brand":"WoB","offers":[{"title":"GB \/ NEW \/ INGRAM","offer_id":53521641701649,"sku":"NLS9781855738201","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/9781855738201.jpg?v=1778455032"}],"url":"https:\/\/www.worldofbooks.com\/en-gb\/collections\/author-books-by-d-r-karsa.oembed","provider":"World of Books ","version":"1.0","type":"link"}