Download or read book Protein Adsorption to Vial Surfaces Quantification Structural and Mechanistic Studies written by Johannes Mathes and published by Cuvillier Verlag. This book was released on 2010-09-21 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: The adsorption of therapeutic proteins to different surfaces in the course of fill and finish, storage, or administration is critical and has shown to cause severe problems which should not be underestimated. Among them is the loss of content but also, potentially, protein structural changes, accompanied by the risk of therapy failure or immunological reactions. In this context, special attention has to be paid to primary packaging containers, to which the protein has an enduring surface contact. Against this background, the adsorption of a modern therapeutic protein, i.e. an IgG1 antibody, to vials was investigated within the scope of this thesis. The first priority had borosilicate glass, followed by siliconized borosilicate glass and polyolefin plastic. The use of model surfaces was almost completely avoided. The studies comprise the quantification of surface-bound protein subject to variable formulation compositions and surface qualities as well as a detailed characterization of the adsorbed protein layer including protein structural alterations caused by the adsorption process. In the presented investigations, the main focus was on the equilibrium state of adsorption at conditions mainly within the scope of pharmaceutical relevance, but also beyond, if necessary, for the acquisition of fundamental knowledge on the adsorption mechanism.
Download or read book Protein Adsorption to Vial Surfaces written by Johannes Maximilian Mathes and published by . This book was released on 2010 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pharmaceutical Inhalation Aerosol Technology Third Edition written by Anthony J. Hickey and published by CRC Press. This book was released on 2019-03-26 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt: This fully revised and updated third edition of Pharmaceutical Inhalation Aerosol Technology encompasses the scientific and technical foundation for the rationale, design, componentry, assembly and quality performance metrics of therapeutic inhalers in their delivery of pharmaceutical aerosols to treat symptoms or the underlying causes of disease. It focuses on the importance of pharmaceutical engineering as a foundational element of all inhaler products and their application to pulmonary drug delivery. The expanded scope considers previously unaddressed aspects of pharmaceutical inhalation aerosol technology and the patient interface by including aerosol delivery, lung deposition and clearance that are used as measures of effective dose delivery. Key Features: Provides a thoroughly revised and expanded reference with authoritative discussions on the physiologic,pharmacologic, metabolic, molecular, cellular and physicochemical factors, influencing the efficacy and utilization of pharmaceutical aerosols Emphasizes the importance of pharmaceutical engineering as a foundational element of all inhaler products and their application to pulmonary drug delivery Addresses the physics, chemistry and engineering principles while establishing disease relevance Expands the ‘technology’ focus of the original volumes to address the title more directly Offers an impressive breadth of coverage as well as an international flavour from outstanding editors and contributors
Download or read book Proteins at Solid Liquid Interfaces written by Philippe Déjardin and published by Springer Science & Business Media. This book was released on 2006-09-28 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book opens with a description of fundamental aspects of protein adsorption to surfaces, a phenomenon that plays a key role in biotechnological applications, especially at solid-liquid interfaces. Presented here are methods for studying adsorption kinetics and conformational changes such as optical waveguide lightmode spectroscopy (OWLS). Also described are sensitive bench techniques for measuring the orientation and structure of proteins at solid-liquid interfaces, including total internal reflection ellipsometry (TIRE), dual polarisation interferometry (DPI) and time of flight - secondary ion mass spectrometry (TOF–SIMS). A model study of fibronectin at polymer surfaces is included, as are studies using microporous membranes and textiles with immobilized enzymes for large-scale applications. Biocompatibility, anti-fouling properties and surface modification to modulate the adsorption and activity of biomolecules are among the other topics addressed in this invaluable book.
Download or read book Parenteral Medications Fourth Edition written by Sandeep Nema and published by CRC Press. This book was released on 2019-07-19 with total page 1125 pages. Available in PDF, EPUB and Kindle. Book excerpt: Parenteral Medications is an authoritative, comprehensive reference work on the formulation and manufacturing of parenteral dosage forms, effectively balancing theoretical considerations with practical aspects of their development. Previously published as a three-volume set, all volumes have been combined into one comprehensive publication that addresses the plethora of changes in the science and considerable advances in the technology associated with these products and routes of administration. Key Features: Provides a comprehensive reference work on the formulation and manufacturing of parenteral dosage forms Addresses changes in the science and advances in the technology associated with parenteral medications and routes of administration Includes 13 new chapters and updated chapters throughout Contains the contributors of leading researchers in the field of parenteral medications Uses full color detailed illustrations, enhancing the learning process The fourth edition not only reflects enhanced content in all the chapters but also highlights the rapidly advancing formulation, processing, manufacturing parenteral technology including advanced delivery and cell therapies. The book is divided into seven sectionss: Section 1 - Parenteral Drug Administration and Delivery Devices; Section 2 - Formulation Design and Development; Section 3 - Specialized Drug Delivery Systems; Section 4 - Primary Packaging and Container Closure Integrity; Section 5 - Facility Design and Environmental Control; Section 6 - Sterilization and Pharmaceutical Processing; Section 7 - Quality Testing and Regulatory Requirements
Download or read book Surface Analysis of Adsorbed Proteins written by Elaine Hillenmeyer Tronic and published by . This book was released on 2012 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adsorbed proteins on surfaces are important in many applications, including medical implants, sensors, marine materials, and in vitro substrates for cell culture and other uses. Understanding the protein structure on the surface would allow better control of the interaction of the material with the surrounding environment and a more reproducible system response. Protein adsorption is a complex process, and characterization requires the combination of multiple analysis techniques. In this thesis, adsorbed protein amounts were measured using x-ray photoelectron spectroscopy (XPS) and radiolabeled proteins. Protein conformation and orientation were measured using time-of-flight secondary ion mass spectrometry (ToF-SIMS), near edge x-ray absorption fine structure (NEXAFS), sum frequency generation (SFG), and enzyme-linked immunosorbent assays (ELISA). Surface type influenced the adsorbed surface concentration of albumin and fibronectin on surfaces of glass, polystyrene, titanium, and sulfonated polystyrene as measured by XPS and radiolabeled protein adsorption. More albumin adsorbed onto polystyrene than glass. More albumin and fibronectin adsorbed onto sulfonated polystyrene than titanium. ToF-SIMS also showed differences in structure of the proteins adsorbed onto the different surfaces. The A1 domain of von Willebrand Factor adsorbed in similar amounts onto glass, tissue culture polystyrene, and polystyrene surfaces, as measured by XPS. However, ToF-SIMS showed differences in solution exposure of A1 domain amino acids when adsorbed onto the three surfaces and NEXAFS showed the most ordered ß-sheet structure when A1 was adsorbed onto polystyrene. ELISA showed lowest binding of antibodies recognizing a nonlinear epitopes within A1 when A1 was adsorbed onto polystyrene. Functional studies using a parallel plate flow chamber measured platelet binding to A1 adsorbed onto the three surfaces. At high shear (20dyne/cm2), platelets showed most detachment from A1 adsorbed onto glass. At low shear (0.2dyne/cm2), platelets showed most detachment from A1 adsorbed onto polystyrene. Surface analysis was also useful in characterizing collagen substrates created under different experimental conditions, including material source and pH. Collagen obtained from different sources exhibited altered adsorption behavior, both in amount adsorbed as measured by XPS and interaction with the A1 domain of von Willebrand Factor as measured by ToF-SIMS. SFG was used to identify differences in ordering of collagen adsorbed from solutions at different pH values. Collagen adsorbed at pH 8.0 showed higher SFG amide signal than collagen adsorbed at pH 6.5, suggesting greater ordering of the peptide backbone at pH 8.0. The differences in SFG signal were not due to the amount adsorbed protein, as XPS showed more collagen adsorbed onto tissue culture polystyrene at pH 6.5 than pH 8.0. These studies demonstrated that the surface type can have a large impact on adsorbed proteins, both in amount adsorbed and surface structure. These studies also showed that surface analysis is very useful in creating defined in vitro protein substrates. In all cases, it was crucial to use multiple analysis techniques to understand these systems.
Download or read book Proteins at Surfaces written by Yulia Mikhailovna Efimova and published by IOS Press. This book was released on 2006 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding protein adsorption is of vital importance in many fields of medicine and industry that can be divided into two categories: those in which it is desired to minimize adsorption, and those in which protein adsorption is desired. The first category covers materials for kidney dialysis membranes, implants in the bloodstream, vessels for storing pharmaceutical products, marine antifouling paints, etc. The second covers mainly materials for surgical implants, e.g., bone replacement, teeth implants, which must be assimilated with the living tissue. For example, bones or tooth implants require good protein adhesion to allow the growth of the bone and the formation of a stable and strong interphase between the implants and the bone. In contrast, the protein adhesion has to be poor for catheters or contact lenses, where a low contact with the tissue is required...
Download or read book Studies on the Conformation of Adsorbed Proteins written by Peter Billsten and published by . This book was released on 1997 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Protein Adsorption and Conformational Changes written by Michael Assfalg and published by Mdpi AG. This book was released on 2022-03-28 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Protein adsorption to solids, nanomaterials, and biological surfaces is of central interest in many fields, including biomedicine, bioanalytical chemistry, materials engineering, bio-nanotechnology, and basic biomolecular research. Although protein adsorption may sometimes occur with little consequence on molecular structure, interactions with surfaces frequently cause changes in local or global conformations and dynamics, perturbations to secondary structures or tertiary folds, eventually resulting in dramatically altered protein function. Importantly, surfaces may trigger protein misfolding and self-aggregation, or, conversely, promote protein structure formation. The use of nanoscale surfaces to remodel the conformational landscape and the aggregation pathways of amyloidogenic peptides and proteins has been proposed as a promising strategy against several severe human diseases. The rapid growth of applications and technological innovation which is based on or concerned with protein adsorption necessitates renewed efforts to provide molecular-level insights into adsorption-induced protein structural perturbations. In this Special Issue, we gathered the recent findings of experimental and computational investigations that contributed novel insights into protein adsorption with a focus on the structural and dynamic aspects of proteins.
Download or read book Investigations on Protein Adsorption to Coated Glass Vials written by Kerstin Höger and published by . This book was released on 2014 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Protein Adsorption and Conformational Changes written by Michael Assfalg and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Protein adsorption to solids, nanomaterials, and biological surfaces is of central interest in many fields, including biomedicine, bioanalytical chemistry, materials engineering, bio-nanotechnology, and basic biomolecular research. Although protein adsorption may sometimes occur with little consequence on molecular structure, interactions with surfaces frequently cause changes in local or global conformations and dynamics, perturbations to secondary structures or tertiary folds, eventually resulting in dramatically altered protein function. Importantly, surfaces may trigger protein misfolding and self-aggregation, or, conversely, promote protein structure formation. The use of nanoscale surfaces to remodel the conformational landscape and the aggregation pathways of amyloidogenic peptides and proteins has been proposed as a promising strategy against several severe human diseases. The rapid growth of applications and technological innovation which is based on or concerned with protein adsorption necessitates renewed efforts to provide molecular-level insights into adsorption-induced protein structural perturbations. In this Special Issue, we gathered the recent findings of experimental and computational investigations that contributed novel insights into protein adsorption with a focus on the structural and dynamic aspects of proteins.
Download or read book Membrane Proteins in Aqueous Solutions written by Jean-Luc Popot and published by Springer. This book was released on 2018-06-08 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the first to be entirely devoted to the challenging art of handling membrane proteins out of their natural environment, a key process in biological and pharmaceutical research, but one plagued with difficulties and pitfalls. Written by one of the foremost experts in the field, Membrane Proteins in Aqueous Solutions is accessible to any member of a membrane biology laboratory. After presenting the structure, functions, dynamics, synthesis, natural environment and lipid interactions of membrane proteins, the author discusses the principles of extracting them with detergents, the mechanisms of detergent-induced destabilization, countermeasures, and recent progress in developing detergents with weaker denaturing properties. Non-conventional alternatives to detergents, including bicelles, nanodiscs, amphipathic peptides, fluorinated surfactants and amphipols, are described, and their relative advantages and drawbacks are compared. The synthesis and solution properties of the various types of amphipols are presented, as well as the formation and properties of membrane protein/amphipol complexes and the transfer of amphipol-trapped proteins to detergents, nanodiscs, lipidic mesophases, or living cells. The final chapters of the book deal with applications: membrane protein in vitro folding and cell-free expression, solution studies, NMR, crystallography, electron microscopy, mass spectrometry, amphipol-mediated immobilization of membrane proteins, and biomedical applications. Important features of the book include introductory sections describing foundations as well as the state-of-the-art for each of the biophysical techniques discussed, and topical tables which organize a widely dispersed literature. Boxes and annexes throughout the book explain technical aspects, and twelve detailed experimental protocols, ranging from in vitro folding of membrane proteins to single-particle electron cryomicroscopy, have been contributed by and commented on by experienced users. Membrane Proteins in Aqueous Solutions offers a concise, accessible introduction to membrane protein biochemistry and biophysics, as well as comprehensive coverage of the properties and uses of conventional and non-conventional surfactants. It will be useful both in basic and applied research laboratories and as a teaching aid for students, instructors, researchers, and professionals within the field.
Download or read book Handbook of Toxicology of Chemical Warfare Agents written by Ramesh C Gupta and published by Academic Press. This book was released on 2009-04-02 with total page 1182 pages. Available in PDF, EPUB and Kindle. Book excerpt: This groundbreaking book covers every aspect of deadly toxic chemicals used as weapons of mass destruction and employed in conflicts, warfare and terrorism. Including findings from experimental as well as clinical studies, this one-of-a-kind handbook is prepared in a very user- friendly format that can easily be followed by students, teachers and researchers, as well as lay people. Stand-alone chapters on individual chemicals and major topics allow the reader to easily access required information without searching through the entire book.This is the first book that offers in-depth coverage of individual toxicants, target organ toxicity, major incidents, toxic effects in humans, animals and wildlife, biosensors, biomarkers, on-site and laboratory analytical methods, decontamination and detoxification procedures, prophylactic, therapeutic and countermeasures, and the role of homeland security. - Presents a comprehensive look at all aspects of chemical warfare toxicology in one reference work. This saves researchers time in quickly accessing the very latest definitive details on toxicity of specific agents used in chemical warfare as opposed to searching through thousands of journal articles. Will include the most agent-specific information on the market - Includes detailed coverage of the most exhaustive list of agents possibly used as chemical warfare agents in one source. Section 4: Agents That Can Be Used as Weapons of Mass Destruction ? 25 chapters long. Other books on the market only include a sample selection of specific agents. Offering all possible agents detailed under one cover makes this appealing to a wider audience and saves researchers time - The Forward will be written by Dr. Tetsuo Satoh, Chiba University, Japan. He is one of the most respected, recognizable authorities on chemical warfare agents which will set the authoritative tone for the book - Covers risk to humans, animals and the environment equally. Researchers involved in assessing the risks involved with a possible chemical warfare attack and those who are developing response plans to such attacks must look at not only the risks to human health but to our wildlife and environment as well. The holistic approach taken in this book ensures that the researchers have ready access to the details no matter which aspect of the effects of CWA's they might be concerned with
Download or read book Immune Aspects of Biopharmaceuticals and Nanomedicines written by Raj Bawa and published by CRC Press. This book was released on 2019-01-10 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: The enormous advances in the immunologic aspects of biotherapeutics and nanomedicines in the past two decades has necessitated an authoritative and comprehensive reference source that can be relied upon by immunologists, biomedical researchers, clinicians, pharmaceutical companies, regulators, venture capitalists, and policy makers alike. This text provides a thorough understanding of immunology, therapeutic potential, clinical applications, adverse reactions, and approaches to overcoming immunotoxicity of biotherapeutics and nanomedicines. It also tackles critical, yet often overlooked topics such as immune aspects of nano-bio interactions, current FDA regulatory guidances, complement activation-related pseudoallergy (CARPA), advances in nanovaccines, and immunogenicity testing of protein therapeutics.
Download or read book Enzymes written by Robert A. Copeland and published by John Wiley & Sons. This book was released on 2004-04-07 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fully updated and expanded-a solid foundation for understandingexperimental enzymology. This practical, up-to-date survey is designed for a broadspectrum of biological and chemical scientists who are beginning todelve into modern enzymology. Enzymes, Second Editionexplains the structural complexities of proteins and enzymes andthe mechanisms by which enzymes perform their catalytic functions.The book provides illustrative examples from the contemporaryliterature to guide the reader through concepts and data analysisprocedures. Clear, well-written descriptions simplify the complexmathematical treatment of enzyme kinetic data, and numerouscitations at the end of each chapter enable the reader to accessthe primary literature and more in-depth treatments of specifictopics. This Second Edition of Enzymes: A Practical Introductionto Structure, Mechanism, and Data Analysis features refinedand expanded coverage of many concepts, while retaining theintroductory nature of the book. Important new featuresinclude: A new chapter on protein-ligand binding equilibria Expanded coverage of chemical mechanisms in enzyme catalysisand experimental measurements of enzyme activity Updated and refined discussions of enzyme inhibitors andmultiple substrate reactions Coverage of current practical applications to the study ofenzymology Supplemented with appendices providing contact information forsuppliers of reagents and equipment for enzyme studies, as well asa survey of useful Internet sites and computer software forenzymatic data analysis, Enzymes, Second Edition isthe ultimate practical guide for scientists and students inbiochemical, pharmaceutical, biotechnical, medicinal, andagricultural/food-related research.
Download or read book Aggregation of Therapeutic Proteins written by Wei Wang and published by John Wiley & Sons. This book was released on 2010-12-28 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives pharmaceutical scientists an up-to-date resource on protein aggregation and its consequences, and available methods to control or slow down the aggregation process. While significant progress has been made in the past decade, the current understanding of protein aggregation and its consequences is still immature. Prevention or even moderate inhibition of protein aggregation has been mostly experimental. The knowledge in this book can greatly help pharmaceutical scientists in the development of therapeutic proteins, and also instigate further scientific investigations in this area. This book fills such a need by providing an overview on the causes, consequences, characterization, and control of the aggregation of therapeutic proteins.
Download or read book Papers Presented at the Meeting written by American Chemical Society. Division of Polymer Chemistry and published by . This book was released on 1992 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
