Molecular Interactions In Bioseparations

Rapid advances in molecular biology have accelerated the production of a great number of protein-based therapeutic agents. The major cost in producing these proteins appears to be associated with their purification from the complex mixture of the crude extract. A major challenge to the protein biochemist and the biochemical engineer is the development of rapid, efficient, and cost-effective purification systems. This volume presents state-of-the-art reviews of current methods used in the purifica tion of biological macromolecules that are based on molecular interactions. Thus, the major emphasis is placed on affinity-related techniques. Part I provides a general introduction to affinity chromatography and includes a chapter describing an interesting new technique called "slalom chromatography" for DNA fractionations. Affinity chromatography using molecules of biological origin as the affinity ligand is covered in Part II. Part III describes the use of a special class of biomolecules, antibodies, as affinity ligands. Affinity chromatography with biomimetic ligands is discussed in Part IV. Newer concepts and their applications in bioseparation are presented in Part V. Part VI covers affinity-related techniques such as affinity-based extracorporeal shunts, affinity electrophoresis, affinity precipitation, and affinity extraction. I would like to express my sincere thanks to all the authors, who are recognized experts in their respective fields, for their cooperation and contributions. I thank the editorial staff of Plenum Press for their professionalism, and Mary Phillips Born, Senior Editor, for her encouragement. The support of my family (Ping and Peilin) made it possible to complete editing this book. That T.

Proceedings of the NATO Advanced Research Workshop, Hveragerdi, Iceland, September 14--19, 1994

Transgenic Plants: A Production System for Industrial andPharmaceutical Proteins provides a detailed guide to the principlesand practice of using transgenic plants as a system for theproduction of heterologous proteins. It is unique in that it coversthe complete process of heterologous protein production in plants,from the initial transformation of the plant, through totranscription, transgene stability and finally the downstreamingprocessing events for protein purification. Written by aninternational team of industrialists and academics, this bookdescribes: * the fundamental issues associated with expressing heterologousproteins in plants; * a number of detailed examples of the successful small-andlarge-scale production of proteins; * the essentials of patenting; and * the commercial exploitation. Transgenic Plants: A Production System for Industrial andPharmaceutical Proteins will be of interest to plantbiotechnologists, molecular biologists and protein biochemists inthe biotechnology and pharmaceutical industries.

Smart polymers are macromolecules capable of undergoing rapid, reversible phase transitions from a hydrophilic to a hydrophobic microstructure when triggered by small changes in their immediate environment, such as slight variations in temperature, pH or ionic strength. Until now, it has always been considered that polymers are passive participants within the Bioseparation procedure. Smart Polymers for Bioseparation and Bioprocessing addresses an entirely novel theory that advocates a much more active role for smart polymers within this process than has previously been envisaged, and therefore focuses on the role of these smart polymers within bioseparation. With contributions from the leading researchers working on smart polymers and their applications, this volume offers a comprehensive overview of both the current state-of-affairs within this research field and the potential for future developments. This book will be of interest to those working on techniques of bioseparation and bioprocessing, polymer chemists developing new smart polymers, as well as graduates in biotechnology.

It is generally recognized that the commercial success of biotechnology products is highly dependent on the successful development and application of high-powered separation and purification methods. In this practical and authoritative handbook, the separation of proteins, nucleic acids, and oligonucleotides from biological matrices is covered from analytical to process scales. Also included in a chapter on the separation of monoclonal antibodies, which have found numerous uses as therapeutic and diagnostic agents. Analytical techniques include an interesting montage of chromatographic methods, capillary electrophoresis, isoelectric focusing, and mass spectrometry. Among separation and purification methods, liquid-liquid distribution, displacement chromatography, expanded bed adsorption, membrane chromatography, and simulated moving bed chromatography are covered at length. Regulatory and economic considerations are addressed, as are plant and process equipment and engineering process control. A chapter on future developments highlights the application of DNA chip arrays as well as evolving methodologies for a large number of drugs that are under development for treatment of cancer, AIDS, rheumatoid arthritis, and Alzheimer's disease. Handbook of Bioseparations serves as an essential reference and guidebook for separation scientists working in the pharmaceutical and biotechnology industries, academia, and government laboratories. Key Features * Covers bioseparations of proteins, nucleic acids, and monoclonal antibodies * Encompasses both analytical and process-scale methods * Elucidates the importance of engineering process control * Details selection of plant and process equipment * Addresses economic considerations * Discusses future developments

Completely revised to reflect the innovations in HPLC from the past decade, this authoritative reference presents practical strategies for the evaluation and analysis of proteins, peptides, and polynucleotides. Offering class-specific applications for the characterization and fractionation of biological macromolecules, the book contains material on organic supports, size exclusion, ion exchange, hydrophobic interaction, and metal interaction chromatography. Leading experts summarize specialized detection systems, provides discussions on the chemical and biological properties of specific biomolecules, include detailed guidelines for the development of analytical techniques, and more.

A modern separation process textbook written for advanced undergraduate and graduate level courses in chemical engineering.

The field of bioseparation, and biochromatography in particular, is advancing very rapidly as our knowledge of the properties of molecules and atomic forces increases. This volume covers the basic principles of biochromatography in detail. It assesses different techniques and includes a large number of applications, providing the reader with a mult