Experimental and Computational Investigations of Therapeutic Drug Release from Biodegradable Poly(lactide-co-glycolide) (plg) Microspheres

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (61 download)

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Book Synopsis Experimental and Computational Investigations of Therapeutic Drug Release from Biodegradable Poly(lactide-co-glycolide) (plg) Microspheres by : Nader Samir Berchane

Download or read book Experimental and Computational Investigations of Therapeutic Drug Release from Biodegradable Poly(lactide-co-glycolide) (plg) Microspheres written by Nader Samir Berchane and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The need to tailor release-rate profiles from polymeric microspheres remains one of the leading challenges in controlled drug delivery. Microsphere size, which has a significant effect on drug release rate, can potentially be varied to design a controlled drug delivery system with desired release profile. In addition, drug release rate from polymeric microspheres is dependent on material properties such as polymer molecular weight. Mathematical modeling provides insight into the fundamental processes that govern the release, and once validated with experimental results, it can be used to tailor a desired controlled drug delivery system. To these ends, PLG microspheres were fabricated using the oil-in-water emulsion technique. A quantitative study that describes the size distribution of poly(lactide-coglycolide) (PLG) microspheres is presented. A fluid mechanics-based correlation that predicts the mean microsphere diameter is formulated based on the theory of emulsification in turbulent flow. The effects of microspheres0́9 mean diameter, polydispersity, and polymer molecular weight on therapeutic drug release rate from poly(lactide-co-glycolide) (PLG) microspheres were investigated experimentally. Based on the experimental results, a suitable mathematical theory has been developed that incorporates the effect of microsphere size distribution and polymer degradation on drug release. In addition, a numerical optimization technique, based on the least squares method, was developed to achieve desired therapeutic drug release profiles by combining individual microsphere populations. The fluid mechanics-based mathematical correlation that predicts microsphere mean diameter provided a close fit to the experimental results. We show from in vitro release experiments that microsphere size has a significant effect on drug release rate. The initial release rate decreased with an increase in microsphere size. In addition, the release profile changed from first order to concave-upward (sigmoidal) as the microsphere size was increased. The mathematical model gave a good fit to the experimental release data. Using the numerical optimization technique, it was possible to achieve desired release profiles, in particular zero-order and pulsatile release, by combining individual microsphere populations at the appropriate proportions. Overall, this work shows that engineering polymeric microsphere populations having predetermined characteristics is an effective means to obtain desired therapeutic drug release patterns, relevant for controlled drug delivery.

Dissertation Abstracts International

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ISBN 13 :
Total Pages : 1006 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Dissertation Abstracts International by :

Download or read book Dissertation Abstracts International written by and published by . This book was released on 2008 with total page 1006 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Bio-inspired Polymers

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Publisher : Royal Society of Chemistry
ISBN 13 : 1782626662
Total Pages : 613 pages
Book Rating : 4.7/5 (826 download)

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Book Synopsis Bio-inspired Polymers by : Nico Bruns

Download or read book Bio-inspired Polymers written by Nico Bruns and published by Royal Society of Chemistry. This book was released on 2016-10-14 with total page 613 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many key aspects of life are based on naturally occurring polymers, such as polysaccharides, proteins and DNA. Unsurprisingly, their molecular functionalities, macromolecular structures and material properties are providing inspiration for designing new polymeric materials with specific functions, for example, responsive, adaptive and self-healing materials. Bio-inspired Polymers covers all aspects of the subject, ranging from the synthesis of novel polymers, to structure-property relationships, materials with advanced properties and applications of bio-inspired polymers in such diverse fields as drug delivery, tissue engineering, optical materials and lightweight structural materials. Written and edited by leading experts on the topic, the book provides a comprehensive review and essential graduate level text on bio-inspired polymers for biochemists, materials scientists and chemists working in both industry and academia.

Computational Pharmaceutics

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Publisher : John Wiley & Sons
ISBN 13 : 1118573994
Total Pages : 350 pages
Book Rating : 4.1/5 (185 download)

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Book Synopsis Computational Pharmaceutics by : Defang Ouyang

Download or read book Computational Pharmaceutics written by Defang Ouyang and published by John Wiley & Sons. This book was released on 2015-07-20 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular modeling techniques have been widely used in drug discovery fields for rational drug design and compound screening. Now these techniques are used to model or mimic the behavior of molecules, and help us study formulation at the molecular level. Computational pharmaceutics enables us to understand the mechanism of drug delivery, and to develop new drug delivery systems. The book discusses the modeling of different drug delivery systems, including cyclodextrins, solid dispersions, polymorphism prediction, dendrimer-based delivery systems, surfactant-based micelle, polymeric drug delivery systems, liposome, protein/peptide formulations, non-viral gene delivery systems, drug-protein binding, silica nanoparticles, carbon nanotube-based drug delivery systems, diamond nanoparticles and layered double hydroxides (LDHs) drug delivery systems. Although there are a number of existing books about rational drug design with molecular modeling techniques, these techniques still look mysterious and daunting for pharmaceutical scientists. This book fills the gap between pharmaceutics and molecular modeling, and presents a systematic and overall introduction to computational pharmaceutics. It covers all introductory, advanced and specialist levels. It provides a totally different perspective to pharmaceutical scientists, and will greatly facilitate the development of pharmaceutics. It also helps computational chemists to look for the important questions in the drug delivery field. This book is included in the Advances in Pharmaceutical Technology book series.

Drug Delivery

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Publisher : Springer Science & Business Media
ISBN 13 : 3642004776
Total Pages : 506 pages
Book Rating : 4.6/5 (42 download)

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Book Synopsis Drug Delivery by : Monika Schäfer-Korting

Download or read book Drug Delivery written by Monika Schäfer-Korting and published by Springer Science & Business Media. This book was released on 2010-03-10 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the view of most experts pharmacology is on drugs, targets, and actions. In the context the drug as a rule is seen as an active pharmaceutical ingredient and not as a complex mixture of chemical entities of a well defined structure. Today, we are becoming more and more aware of the fact that delivery of the active compound to the target site is a key. The present volume gives a topical overview on various modern approaches to drug targeting covering today’s options for specific carrier systems allowing successful drug treatment at various sites of the body difficult to address and allowing to increase the benefit-risk-ratio to the optimum possible.

Polymer Modification

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Publisher : Springer Science & Business Media
ISBN 13 : 1489914773
Total Pages : 207 pages
Book Rating : 4.4/5 (899 download)

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Book Synopsis Polymer Modification by : Graham G. Swift

Download or read book Polymer Modification written by Graham G. Swift and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of an ACS-PMSE Division Symposium held in Orlando, Florida, August 21-25, 1996

Smart Textiles for Medicine and Healthcare

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Publisher : Elsevier
ISBN 13 : 1845692934
Total Pages : 329 pages
Book Rating : 4.8/5 (456 download)

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Book Synopsis Smart Textiles for Medicine and Healthcare by : Lieva Van Langenhove

Download or read book Smart Textiles for Medicine and Healthcare written by Lieva Van Langenhove and published by Elsevier. This book was released on 2007-02-21 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: Smart or intelligent textiles are a relatively novel area of research within the textile industry with enormous potential within the healthcare industry. This book provides a unique insight into recent developments in how smart textiles are being used in the medical field.The first part of the book assesses trends in smart medical textiles. Chapters cover topics such as wound care materials, drug-based release systems and electronic sensors for health care. The second part of the book discusses the role of smart textile in monitoring the health of particular groups such as pregnant women, children, the elderly and those with particular physical disabilities.With its distinguished editor and team of international contributors, this book provides a unique and essential reference to those concerned with intelligent textiles in healthcare. - Unlocks the significant potential of smart textiles within the healthcare industry - Provides a unique insight into recent developments in this exciting field

Engineering Polymer Systems for Improved Drug Delivery

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Publisher : John Wiley & Sons
ISBN 13 : 1118747801
Total Pages : 395 pages
Book Rating : 4.1/5 (187 download)

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Book Synopsis Engineering Polymer Systems for Improved Drug Delivery by : Rebecca A. Bader

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.

Understanding Drug Release and Absorption Mechanisms

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Publisher : CRC Press
ISBN 13 : 1420004654
Total Pages : 648 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Understanding Drug Release and Absorption Mechanisms by : Mario Grassi

Download or read book Understanding Drug Release and Absorption Mechanisms written by Mario Grassi and published by CRC Press. This book was released on 2006-12-26 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: Demand for better reliability from drug delivery systems has caused designers and researchers to move away from trial-and-error approaches and toward model-based methods of product development. Developing such models requires cross-disciplinary physical, mathematical, and physiological knowledge. Combining these areas under a single cover, Under

Solid State Polymerization

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Publisher : John Wiley & Sons
ISBN 13 : 0470451823
Total Pages : 314 pages
Book Rating : 4.4/5 (74 download)

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Book Synopsis Solid State Polymerization by : Constantine D. Papaspyrides

Download or read book Solid State Polymerization written by Constantine D. Papaspyrides and published by John Wiley & Sons. This book was released on 2009-04-27 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most current guide to solid state polymerization Solid State Polymerization (SSP)is an indispensable tool in the design, manufacture, and study of polymers, plastics, and fibers. SSP presents significant advantages over other polymerization techniques due to low operating temperatures, inexpensive equipment, and simple and environmentally sound procedures. Combining fundamentals of polymer science, chemistry, physical chemistry, and engineering, SSP also offers many research applications for a wide range of students and investigators. Gathering and filtering the latest literature on SSP, Solid Solid State Polymerization offers a unique, one-stop resource on this important process. With chapters contributed by leaders in the field, this text summarizes SSP, and provides essential coverage that includes: An introduction to SSP, with chemical and physical steps, apparatus, advantages, and parameters SSP physical chemistry and mechanisms Kinetic aspects of polyesters and polyamides SSP Catalysis in SSP processes Application of SSP under high pressure conditions in the laboratory Engineering aspects regarding process modeling and industrial application Recent developments and future possibilities Solid State Polymerization provides the most up-to-date coverage of this constantly developing field to academic and industry professionals, as well as graduate and postgraduate-level students in chemical engineering, materials science and engineering, polymer chemistry, polymer processing and polymer engineering.

Dosage Form Design Considerations

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Publisher : Academic Press
ISBN 13 : 0128144246
Total Pages : 881 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Dosage Form Design Considerations by :

Download or read book Dosage Form Design Considerations written by and published by Academic Press. This book was released on 2018-07-28 with total page 881 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dosage Form Design Parameters, Volume I, examines the history and current state of the field within the pharmaceutical sciences, presenting key developments. Content includes drug development issues, the scale up of formulations, regulatory issues, intellectual property, solid state properties and polymorphism. Written by experts in the field, this volume in the Advances in Pharmaceutical Product Development and Research series deepens our understanding of dosage form design parameters. Chapters delve into a particular aspect of this fundamental field, covering principles, methodologies and the technologies employed by pharmaceutical scientists. In addition, the book contains a comprehensive examination suitable for researchers and advanced students working in pharmaceuticals, cosmetics, biotechnology and related industries. - Examines the history and recent developments in drug dosage forms for pharmaceutical sciences - Focuses on physicochemical aspects, prefomulation solid state properties and polymorphism - Contains extensive references for further discovery and learning that are appropriate for advanced undergraduates, graduate students and those interested in drug dosage design

Nanotechnology in Drug Delivery

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Publisher : Springer Science & Business Media
ISBN 13 : 0387776680
Total Pages : 681 pages
Book Rating : 4.3/5 (877 download)

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Book Synopsis Nanotechnology in Drug Delivery by : Melgardt M. de Villiers

Download or read book Nanotechnology in Drug Delivery written by Melgardt M. de Villiers and published by Springer Science & Business Media. This book was released on 2008-10-29 with total page 681 pages. Available in PDF, EPUB and Kindle. Book excerpt: The reader will be introduced to various aspects of the fundamentals of nanotechnology based drug delivery systems and the application of these systems for the delivery of small molecules, proteins, peptides, oligonucleotides and genes. How these systems overcome challenges offered by biological barriers to drug absorption and drug targeting will also be described.

Drug Delivery Nanoparticles Formulation and Characterization

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Publisher : CRC Press
ISBN 13 : 1420078054
Total Pages : 416 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Drug Delivery Nanoparticles Formulation and Characterization by : Yashwant Pathak

Download or read book Drug Delivery Nanoparticles Formulation and Characterization written by Yashwant Pathak and published by CRC Press. This book was released on 2016-04-19 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exploring fundamental concepts, Drug Delivery Nanoparticles Formulation and Characterization presents key aspects of nanoparticulate system development for various therapeutic applications and provides advanced methods used to file for regulatory approval.This comprehensive guide features:Process Analytical Techniques (PAT) used in manufacturing Na

Degradable Aliphatic Polyesters

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Publisher : Springer Science & Business Media
ISBN 13 : 3540422498
Total Pages : 188 pages
Book Rating : 4.5/5 (44 download)

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Book Synopsis Degradable Aliphatic Polyesters by : A.-C. Albertsson

Download or read book Degradable Aliphatic Polyesters written by A.-C. Albertsson and published by Springer Science & Business Media. This book was released on 2001-12-03 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: A renewed interest in aliphatic polyesters has resulted in developing materials important in the biomedical and ecological fields. Mainly materials such as PLA and PCL homopolymers have so far been used in most applications. There are many other monomers which can be used. Different molecular structures give a wider range of physical properties as well as the possibility of regulating the degradation rate. By using different types of initiators and catalysts, ring-opening polymerization of lactones and lactides provides macromolecules with advanced molecular architectures. In the future, new degradable polymers should be able to participate in the metabolism of nature. Some examples of novel polymers with inherent environmentally favorable properties such as renewability and degradability and a series of interesting monomers found in the metabolisms and cycles of nature are given.

Industrial Pharmaceutical Biotechnology

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Publisher : Wiley-VCH
ISBN 13 :
Total Pages : 328 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Industrial Pharmaceutical Biotechnology by : Heinrich Klefenz

Download or read book Industrial Pharmaceutical Biotechnology written by Heinrich Klefenz and published by Wiley-VCH. This book was released on 2002-04-22 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume focuses on pharmaceutical biotechnology as a key area of life sciences. The complete range of concepts, processes and technologies of biotechnology is applied in modern industrial pharmaceutical research, development and production. The results of genome sequencing and studies of biological-genetic function are combined with chemical, micro-electronic and microsystem technology to produce medical devices and diagnostic biochips. A multitude of biologically active molecules is expanded by additional novel structures created with newly arranged gene clusters and bio-catalytic chemical processes. New organisational structures in the co-operation of institutes, companies and networks enable faster knowledge and product development and immediate application of the results of research and process development. This book is the ideal source of information for scientists and engineers in research and development, for decision-makers in biotech, pharma and chemical corporations, as well as for research institutes, but also for founders of biotech companies and people working for venture capital corporations.

BioMEMS and Biomedical Nanotechnology

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Publisher : Springer Science & Business Media
ISBN 13 : 0387258434
Total Pages : 554 pages
Book Rating : 4.3/5 (872 download)

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Book Synopsis BioMEMS and Biomedical Nanotechnology by : Mihrimah Ozkan

Download or read book BioMEMS and Biomedical Nanotechnology written by Mihrimah Ozkan and published by Springer Science & Business Media. This book was released on 2007-04-03 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contributions reporting on fundamental and applied investigations of the material science, biochemistry, and physics of biomedical microdevices with applications to Genomics and Proteomics. Topics include gene expression profiling utilizing microarray technology; imaging and sensing for gene detection and use in DNA analysis; and coverage of advanced microfluidic devices and the Humane Genome Project.

Supramolecular Amphiphiles

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Publisher : Royal Society of Chemistry
ISBN 13 : 1782625429
Total Pages : 183 pages
Book Rating : 4.7/5 (826 download)

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Book Synopsis Supramolecular Amphiphiles by : Xi Zhang

Download or read book Supramolecular Amphiphiles written by Xi Zhang and published by Royal Society of Chemistry. This book was released on 2017-06-15 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: An amphiphile is a molecule that contains a hydrophilic part and a hydrophobic part, linked by covalent bonding. Supramolecular amphiphiles (supra-amphiphiles) are amphiphiles linked by non-covalent interactions. As they employ non-covalent interactions, these species demonstrate adaptability and reversibility in conformational transformation, making them one of the most important emerging species in supramolecular chemistry. They have proven important in bridging the gap between molecular architecture and functional assembly. This book is written and edited by the current leaders in the topic and contains a foreword from Professor Jean-Marie Lehn, a father of the supramolecular chemistry field. Bringing together supramolecular chemistry and colloidal and interfacial science, the book provides a detailed and systematic introduction to supramolecular amphiphiles. Chapters explain how to employ non-covalent interactions to fabricate supra-amphiphiles. The book opens with an introduction to the history and development of the field, followed by chapters focussing on each type of interaction, including host-guest interaction, electrostatic interaction, charge-transfer interaction, hydrogen bonding and dynamic covalent bonds. This book will be a valuable resource for students new to this field and experienced researchers wanting to explore the wider context of their work.