Download or read book Mucoadhesive Drug Delivery Systems Using Optimized Polymer Blends written by Bhupinder Singh and published by LAP Lambert Academic Publishing. This book was released on 2010-09 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: The work embodies development and systematic optimization of oral controlled release (CR) mucoadhesive hydrophilic matrices of atenolol using "Design of Experiments". A central composite design was used to optimize drug release profile and bioadhesive strength. Two polymers, namely, Carbopol 934P and sodium CMC, were taken as synergistic factors. The 3-D response surfaces and 2-D contour plots indicated significant effect of both the polymers on ex vivo bioadhesive strength of tablet against porcine gastric mucosa, diffusional release exponent and drug release extension. The optimized drug delivery formulation was selected by feasibility and grid searches based on maximization of the response variables. Validation of drug delivery optimization study using experimental runs indicated high prognostic ability of the chosen experimental design. Besides unraveling the effect of the two factors on various response variables, the study helped in finding the "optimized" formulation with excellent bioadhesive strength and extended release for 24 h, holding immense promise for once-a-day gastroretentive CR formulation and minimizing fluctuations in plasma drug levels.
Download or read book Bioadhesive Drug Delivery Systems written by Edith Mathiowitz and published by CRC Press. This book was released on 1999-07-13 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: This invaluable reference presents a comprehensive review of the basic methods for characterizing bioadhesive materials and improving vehicle targeting and uptake-offering possibilities for reformulating existing compounds to create new pharmaceuticals at lower development costs. Evaluates the unique carrier characteristics of bioadhesive polymers and their power to enhance localization of delivered agents, local bioavailability, and drug absorption and transport! Written by over 50 international experts and reflecting broad knowledge of both traditional bioadhesive strategies and novel clinical applications, Bioadhesive Drug Delivery Systems discusses mechanical and chemical bonding, polymer-mucus interactions, the effect of surface energy in bioadhesion, polymer hydration, and mucus rheology analyzes biochemical properties of mucus and glycoproteins, cell adhesion molecules, and cellular interaction with two- and three-dimensional surfaces covers microbalances and magnetic force transducers, atomic force microscopy, direct measurements of molecular level adhesions, and methods to measure cell-cell interactions examines bioadhesive carriers, diffusion or penetration enhancers, and lectin-targeted vehicles describes vaginal, nasal, buccal, ocular, and transdermal drug delivery reviews bioadhesive interactions with the mucosal tissues of the eye and mouth, and those in the respiratory, urinary, and gastrointestinal tracts explores issues of product development, clinical testing, and production and more! Amply referenced with over 1400 bibliographic citations, and illustrated with more than 300 drawings, photographs, tables, and display equations, Bioadhesive Drug Delivery Systems serves as a sound basis for innovation in bioadhesive systems and an excellent introduction to the subject. This unique reference is ideal for pharmaceutical scientists and technologists; chemical, polymer, and plastics engineers; biochemists; physical, surface, and colloid chemists; biologists; and upper-level undergraduate and graduate students in these disciplines.
Download or read book Mucoadhesive Materials and Drug Delivery Systems written by Vitaliy V. Khutoryanskiy and published by John Wiley & Sons. This book was released on 2014-06-12 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mucoadhesion defined as attachment of synthetic or natural materials to mucosal tissues has been widely exploited in pharmaceutical forms. This multi-author book provides an up-to-date account of current research on mucoadhesive materials and drug delivery systems. The introductory section describes the structure and physiology of various mucosal surfaces (oral, nasal, ocular, gastrointestinal and vaginal mucosa). This is followed by chapters on the various methods used to study mucoadhesion and to characterise mucoadhesive properties of various dosage forms. The final section will summarise information on traditional and novel types of mucoadhesive materials, such as chitosan, thiomers, and liposome-based formulations. This book is unique as there is currently no modern book considering mucoadhesion - all other existing books on the topic are either narrowly focused or more than 10 years old. Furthermore, each contributor offers specialist perspectives from a variety of global locations in both industrial and academic research centres.
Download or read book Bioadhesives in Drug Delivery written by K. L. Mittal and published by John Wiley & Sons. This book was released on 2020-05-26 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: This important and unique book comprises 12 chapters divided into three parts examining the fundamental aspects, bioadhesive formulations, and drug delivery applications. Understanding the phenomenon of bioadhesion i.e. its theories or mechanism(s) are of critical importance in developing optimum bioadhesive polymers (used in bioadhesives). Such bioadhesive polymers are the key for exhibiting the process of bioadhesion, controlled/sustained release of drugs, and drug targeting. The use of bioadhesives restricts the delivery system to the site of interest and thus offers a useful and efficient technique for targeting a drug to the desired location for a prolonged duration. This book addresses the various relevant aspects of bioadhesives in drug delivery in an easily accessible and unified manner. The book containing 12 chapters written by eminent researchers from many parts of the globe is divided into three parts: Part 1: Fundamental Aspects; Part 2: Bioadhesive Formulations; Part 3: Drug Delivery Applications. The topics covered include: Theories and mechanisms of bioadhesion; bioadhesive polymers for drug delivery applications; methods for characterization of bioadhesiveness of drug delivery systems; bioadhesive films and drug delivery applications; bioadhesive nanoparticles; bioadhesive hydrogels and applications; ocular biodhesive drug delivery systems; buccal bioadhesive drug delivery systems; gastrointestinal bioadhesive drug delivery systems; nasal bioadhesive drug delivery systems; vaginal drug delivery systems; pulmonary bioadhesive drug delivery systems.
Download or read book Polymer Blends for Drug Release Systems written by Nafisa Gull and published by Frontiers Media SA. This book was released on 2023-03-17 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Drug Delivery Systems Based on Polymer Blends written by Xinyin Liu and published by . This book was released on 2003 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Mucoadhesive Polymers and Formulations for Transmucosal Drug Delivery written by Vitaliy V. Khutoryanskiy and published by MDPI. This book was released on 2020-04-22 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mucoadhesive polymers are widely used in the design of dosage forms for transmucosal drug delivery to the eye, respiratory, gastrointestinal and reproductive tracts. These routes of drug administration offer a number of advantages including improved drug bioavailability, reduced frequency of administration, and the avoidance for the use of injections. This book represents a collection of reviews and original research articles in the area of mucoadhesive polymers and dosage forms. It covers the design of mucoadhesive forms from commercially-available water-soluble polymers, their mixture and complexes as well as some materials, whose mucoadhesive properties were enhanced through chemical modification. With contributions from leading experts in mucoadhesive polymers and formulations, this book will be a very useful source of information for researchers in polymer, pharmaceutical and formulation sciences.
Download or read book Controlled Release in Oral Drug Delivery written by Clive G. Wilson and published by Springer Science & Business Media. This book was released on 2011-09-22 with total page 415 pages. Available in PDF, EPUB and Kindle. Book excerpt: Controlled Release in Oral Drug Delivery provides focus on specific topics, complementing other books in the initial CRS series. Each chapter sets the context for the inventions described and describe the latitude that the inventions allow. In order to provide some similar look to each chapter, the coverage includes the historical overview, candidate drugs, factors influencing design and development, formulation and manufacturing and delivery system design. This volume was written along three main sections: the relevant anatomy and physiology, a discussion on candidates for oral drug delivery and the major three groups of controlled release systems: diffusion control (swelling and inert matrices); environmental control (pH sensitive coatings, time control, enzymatic control, pressure control) and finally lipidic systems.
Download or read book Sustained Release Mucoadhesive Microparticles Drug Delivery System written by Suryakanta Swain and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mucoadhesive drug delivery system has received great deal of attention over the past few decades. The major advantages of this system are to prolong the drug residence at a specific site of delivery and solve bioavailability problems. The major focus of this book is to explain the current research tools for designing of mucoadhesive microparticles of rabeprazole sodium and tolterodine tartrate by non-aqueous solvent evaporation technique using ethylcellulose and selected mucoadhesive polymers. The prepared microparticles of the above drugs were characterized for particle size, drug content, swelling index, mucoadhesive strength etc. In-vitro drug release study for both drugs suggested that formulation containing tolterodine tartrate with ethylcellulose based chitosan and rabeprazole sodium with ethylcellulose based HPMC K100M showed consistent drug release up to 24h. Accelerated stability study of optimized formulations such as F4 and F6c up to 6 and 3 months respectively.
Download or read book Polymers for Controlled Drug Delivery written by Peter J. Tarcha and published by CRC Press. This book was released on 1990-11-21 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymers for Controlled Drug Delivery addresses the challenges of designing macromolecules that deliver therapeutic agents that function safely and in concert with living organisms. The book primarily discusses classes of polymers and polymeric vehicles, including particulates, such as latexes, coacervates, ion-exchange resins, and liposomes, as well as non-particulate vehicles such as enteric coatings, mediators, and bioadhesives. Other topics discussed include diffusion; biodegradation-controlled delivery; animal model studies for toxicity, metabolism, and elimination testing; and FDA requirements for clinical studies. Drug delivery researchers will find this book to be an invaluable reference tool.
Download or read book Applications of Polymers in Drug Delivery written by Ambikanandan Misra and published by Elsevier. This book was released on 2020-10-02 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applications of Polymers in Drug Delivery, Second Edition, provides a comprehensive resource for anyone looking to understand how polymeric materials can be applied to current, new, and emerging drug delivery applications. Polymers play a crucial role in modulating drug delivery and have been fundamental in the successful development of many novel drug delivery systems. This book describes the development of polymeric systems, ranging from conventional dosage forms to the most recent smart systems. Regulatory and intellectual property aspects as well as the clinical applicability of polymeric drug delivery systems are also discussed. The chapters are organized by specific delivery route, offering methodical and detailed coverage throughout. This second edition has been thoroughly revised to include the latest developments in the field. This is an essential book for researchers, scientists, and advanced students, in polymer science, drug delivery, pharmacology/pharmaceuticals, materials science, tissue engineering, nanomedicine, chemistry, and biology. In industry, this book supports scientists, R&D, and other professionals, working on polymers for drug delivery applications. Explains how polymers can be prepared and utilized for all major drug delivery routes Presents the latest advances, including drug targeting, polymeric micelles and polymersomes, and the delivery of biologicals and nucleic acid therapeutics Includes appendices with in-depth information on pharmaceutical properties of polymers and regulatory aspects
Download or read book Optimization of Mucoadhesive Polymer Micelles for Drug Delivery and Ophthalmic Formulations written by Sukrit Rajpal and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanotechnology enable medicine (nanomedicine) is expected to be the next advent of the health care market, facilitating efficient, safe, and personalized therapies. But there has been limited success penetrating the market. Despite numerous publications demonstrating the utility of nanoparticle platforms for drug delivery, analyses on commercial viability show there are several challenges to be addressed. This thesis work addresses some of these challenges, with a focus on ocular drug delivery. Topical administration is the most popular route of ocular drug delivery. However, only 5% of the administered dose is bioavailable for action at the target site, while the remaining 95% is removed via blinking, nasolacrimal drainage, or degradation. Frequent administrations of concentrated solutions are required to overcome these barriers to maintain therapeutic concentrations. Self-assembled mucoadhesive polymer nanoparticles (MNPs) composed of a poly(lactic acid) core, and dextran corona functionalized with phenylboronic acid have been successful in addressing some of these challenges for ocular drug delivery. This work is intended to optimize the commercial viability of these nanoparticle drug carriers. A review of the current state of nanomedicine for ocular drug delivery aimed at improving retention on the ocular surface is presented. The manufacturing process of the mucoadhesive block copolymer is investigated and optimized resulting in significant time and cost savings. In addition, a method for modification of carbohydrates without the use of organic solvents based on solid-state chemistry is described. Strategies to improve the shelf-life of the colloid suspension are explored and optimized for the MNPs with pharmacopoeia guidelines. A novel method of utilizing freeze-drying to drive self-assembly of polymer micelles is demonstrated. Further steps to improve the commercial viability and success of the MNP platform are discussed in the conclusions.
Download or read book Polymers for Controlled Drug Delivery written by Peter J. Tarcha and published by CRC Press. This book was released on 2023-06-14 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymers for Controlled Drug Delivery addresses the challenges of designing macromolecules that deliver therapeutic agents that function safely and in concert with living organisms. The book primarily discusses classes of polymers and polymeric vehicles, including particulates, such as latexes, coacervates, ion-exchange resins, and liposomes, as well as non-particulate vehicles such as enteric coatings, mediators, and bioadhesives. Other topics discussed include diffusion; biodegradation-controlled delivery; animal model studies for toxicity, metabolism, and elimination testing; and FDA requirements for clinical studies. Drug delivery researchers will find this book to be an invaluable reference tool.
Download or read book Engineering Polymer Systems for Improved Drug Delivery written by Rebecca A. Bader and published by John Wiley & Sons. This book was released on 2014-01-17 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymers have played a critical role in the rational design and application of drug delivery systems that increase the efficacy and reduce the toxicity of new and conventional therapeutics. Beginning with an introduction to the fundamentals of drug delivery, Engineering Polymer Systems for Improved Drug Delivery explores traditional drug delivery techniques as well as emerging advanced drug delivery techniques. By reviewing many types of polymeric drug delivery systems, and including key points, worked examples and homework problems, this book will serve as a guide to for specialists and non-specialists as well as a graduate level text for drug delivery courses.
Download or read book Oral Mucosal Drug Delivery and Therapy written by Michael J. Rathbone and published by Springer. This book was released on 2015-03-13 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides a comprehensive overview of the current issues facing scientists working on delivering drugs locally and systemically via the membranes that line the mouth. The book describes the anatomical and physiological challenges of this route for drug delivery and how they impact the design of oral mucosal drug delivery systems. It also provides a detailed description of current oral mucosal drug delivery technologies that overcome these challenges alongside research, development and assessment methods. In 11 authoritative chapters, the book affords an in-depth evaluation of the major issues associated with this route of administration, namely the retention of the drug/product at the site of administration and increasing drug permeability through the oral mucosa. The book provides insights into the in vitro and in vivo methods available to assess drug permeability and retention, offers solutions on how to improve the permeation of the drugs through the oral mucosa, and explores approaches to prolong drug/product retention at the site of administration. It also indicates future directions in research and product development. Oral Mucosal Drug Delivery and Therapy is a key resource for those wishing to extend their knowledge of this field.
Download or read book Polymeric Drugs and Drug Delivery Systems written by Raphael M. Ottenbrite and published by CRC Press. This book was released on 2019-04-30 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymeric materials are now playing an increasingly important role in pharmaceuticals, as well as in sensing devices, in situ prostheses and probes, and microparticle diagnostic agents. This new volume consists of twenty-two recent research-based reports on the developments in these areas of pharmaceutical and biomaterials technology. The reports w
Download or read book Mucoadhesive Drug Delivery System written by Avinash Hosmani and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the recent days, the technology of Mucoadhesive drug delivery system has gained so much attention from the researchers in the field of formulation development. The drug delivery system enables the formulator to bring the drug in the close proximity to the mucus membrane with enhanced contact time and contact area. Thus the technology has been successful to bring out benefits like bio-availability enhancement along with the extended release. The book gives the idea about the basic fundamentals of Mucoadhesive systems. From the presented work, one may get information about the properties of mucoadhesive polymers. One may study the formulation of different mucoadhesive drug delivery systems like tablet, suspension and microsphere.
