Degradation Rate of Bioresorbable Materials

Degradation Rate of Bioresorbable Materials

Author: F J Buchanan

Publisher: Elsevier

Published: 2008-09-26

Total Pages: 425

ISBN-13: 1845695038

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Bioresorbable materials are extensively used for a wide range of biomedical applications from drug delivery to fracture fixation, and may remain in the body for weeks, months or even years. Accurately predicting and evaluating the degradation rate of these materials is critical to their performance and the controlled release of bioactive agents. Degradation rate of bioresorbable materials provides a comprehensive review of the most important techniques in safely predicting and evaluating the degradation rate of polymer, ceramic and composite based biomaterials. Part one provides an introductory review of bioresorbable materials and the biological environment of the body. Chapters in Part two address degradation mechanisms of commonly used materials such as polymers and ceramics. This is followed by chapters on bioresorption test methods and modelling techniques in Part three. Part four discusses factors influencing bioresorbability such as sterilisation, porosity and host response. The final section reviews current clinical applications of bioresorbable materials. With its distinguished editor and multidisciplinary team of international contributors, Degradation rate of bioresorbable materials: prediction and evaluation provides a unique and valuable reference for biomaterials scientists, engineers and students as well as the medical community. Comprehensively reviews the most pertinent techniques in safely predicting and evaluating the degradation rate of bioresorbable materials Addresses degradation mechanisms of commonly used materials Discusses factors influencing bioresorbability such as sterilisation and host response


Book Synopsis Degradation Rate of Bioresorbable Materials by : F J Buchanan

Download or read book Degradation Rate of Bioresorbable Materials written by F J Buchanan and published by Elsevier. This book was released on 2008-09-26 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioresorbable materials are extensively used for a wide range of biomedical applications from drug delivery to fracture fixation, and may remain in the body for weeks, months or even years. Accurately predicting and evaluating the degradation rate of these materials is critical to their performance and the controlled release of bioactive agents. Degradation rate of bioresorbable materials provides a comprehensive review of the most important techniques in safely predicting and evaluating the degradation rate of polymer, ceramic and composite based biomaterials. Part one provides an introductory review of bioresorbable materials and the biological environment of the body. Chapters in Part two address degradation mechanisms of commonly used materials such as polymers and ceramics. This is followed by chapters on bioresorption test methods and modelling techniques in Part three. Part four discusses factors influencing bioresorbability such as sterilisation, porosity and host response. The final section reviews current clinical applications of bioresorbable materials. With its distinguished editor and multidisciplinary team of international contributors, Degradation rate of bioresorbable materials: prediction and evaluation provides a unique and valuable reference for biomaterials scientists, engineers and students as well as the medical community. Comprehensively reviews the most pertinent techniques in safely predicting and evaluating the degradation rate of bioresorbable materials Addresses degradation mechanisms of commonly used materials Discusses factors influencing bioresorbability such as sterilisation and host response

Modelling Degradation of Bioresorbable Polymeric Medical Devices

Modelling Degradation of Bioresorbable Polymeric Medical Devices

Author: J Pan

Publisher: Elsevier

Published: 2014-10-24

Total Pages: 271

ISBN-13: 1782420258

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The use of bioresorbable polymers in stents, fixation devices and tissue engineering is revolutionising medicine. Both industry and academic researchers are interested in using computer modelling to replace some experiments which are costly and time consuming. This book provides readers with a comprehensive review of modelling polymers and polymeric medical devices as an alternative to practical experiments. Chapters in part one provide readers with an overview of the fundamentals of biodegradation. Part two looks at a wide range of degradation theories for bioresorbable polymers and devices. The final set of chapters look at advances in modelling biodegradation of bioresorbable polymers. This book is an essential guide to those concerned with replacing tests and experiments with modelling. Provides a comprehensive mathematical framework for computer modelling of polymers and polymeric medical devices that can significantly reduce the number of experiments needed Reviews the fundamental methods of modelling degradation, and applies these to particular materials including amorphous bioresorbable polyesters, semicrystalline biodegradable polyesters, and composite materials made of biodegradable polyesters and triclcium phosphates


Book Synopsis Modelling Degradation of Bioresorbable Polymeric Medical Devices by : J Pan

Download or read book Modelling Degradation of Bioresorbable Polymeric Medical Devices written by J Pan and published by Elsevier. This book was released on 2014-10-24 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of bioresorbable polymers in stents, fixation devices and tissue engineering is revolutionising medicine. Both industry and academic researchers are interested in using computer modelling to replace some experiments which are costly and time consuming. This book provides readers with a comprehensive review of modelling polymers and polymeric medical devices as an alternative to practical experiments. Chapters in part one provide readers with an overview of the fundamentals of biodegradation. Part two looks at a wide range of degradation theories for bioresorbable polymers and devices. The final set of chapters look at advances in modelling biodegradation of bioresorbable polymers. This book is an essential guide to those concerned with replacing tests and experiments with modelling. Provides a comprehensive mathematical framework for computer modelling of polymers and polymeric medical devices that can significantly reduce the number of experiments needed Reviews the fundamental methods of modelling degradation, and applies these to particular materials including amorphous bioresorbable polyesters, semicrystalline biodegradable polyesters, and composite materials made of biodegradable polyesters and triclcium phosphates

A Phenomenological Mathematical Modelling Framework for the Degradation of Bioresorbable Composites

A Phenomenological Mathematical Modelling Framework for the Degradation of Bioresorbable Composites

Author: Ismael Moreno-Gomez

Publisher: Springer

Published: 2019-04-05

Total Pages: 325

ISBN-13: 3030049906

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This book presents a generalised computational model for the degradation of resorbable composites, using analytic expressions to represent the interwoven phenomena present during degradation. It then combines this modelling framework with a comprehensive database of quantitative degradation data mined from existing literature and from novel experiments, to provide new insights into the interrelated factors controlling degradation. Resorbable composites made of biodegradable polyesters and calcium-based ceramics have significant therapeutic potential as tissue engineering scaffolds, as temporary implants and as drug-loaded matrices for controlled release. However, their degradation is complex and the rate of resorption depends on multiple connected factors such as the shape and size of the device, polymer chemistry and molecular weight, particle phase, size, volume fraction, distribution and pH-dependent dissolution properties. Understanding and ultimately predicting the degradation of resorbable composites is of central importance if we are to fully unlock the promise of these materials.


Book Synopsis A Phenomenological Mathematical Modelling Framework for the Degradation of Bioresorbable Composites by : Ismael Moreno-Gomez

Download or read book A Phenomenological Mathematical Modelling Framework for the Degradation of Bioresorbable Composites written by Ismael Moreno-Gomez and published by Springer. This book was released on 2019-04-05 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a generalised computational model for the degradation of resorbable composites, using analytic expressions to represent the interwoven phenomena present during degradation. It then combines this modelling framework with a comprehensive database of quantitative degradation data mined from existing literature and from novel experiments, to provide new insights into the interrelated factors controlling degradation. Resorbable composites made of biodegradable polyesters and calcium-based ceramics have significant therapeutic potential as tissue engineering scaffolds, as temporary implants and as drug-loaded matrices for controlled release. However, their degradation is complex and the rate of resorption depends on multiple connected factors such as the shape and size of the device, polymer chemistry and molecular weight, particle phase, size, volume fraction, distribution and pH-dependent dissolution properties. Understanding and ultimately predicting the degradation of resorbable composites is of central importance if we are to fully unlock the promise of these materials.

Biodegradable Systems in Tissue Engineering and Regenerative Medicine

Biodegradable Systems in Tissue Engineering and Regenerative Medicine

Author: Rui L. Reis

Publisher: CRC Press

Published: 2004-11-29

Total Pages: 590

ISBN-13: 0203491238

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Conventional materials technology has yielded clear improvements in regenerative medicine. Ideally, however, a replacement material should mimic the living tissue mechanically, chemically, biologically and functionally. The use of tissue-engineered products based on novel biodegradable polymeric systems will lead to dramatic improvements in health


Book Synopsis Biodegradable Systems in Tissue Engineering and Regenerative Medicine by : Rui L. Reis

Download or read book Biodegradable Systems in Tissue Engineering and Regenerative Medicine written by Rui L. Reis and published by CRC Press. This book was released on 2004-11-29 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conventional materials technology has yielded clear improvements in regenerative medicine. Ideally, however, a replacement material should mimic the living tissue mechanically, chemically, biologically and functionally. The use of tissue-engineered products based on novel biodegradable polymeric systems will lead to dramatic improvements in health

Bioresorbable Polymers

Bioresorbable Polymers

Author: Declan Devine

Publisher: Walter de Gruyter GmbH & Co KG

Published: 2019-04-15

Total Pages: 241

ISBN-13: 311064066X

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Bioresorbable implants can be processed via conventional polymer processing methods such as extrusion, injection and compressing moulding, solvent spinning or casting. This book addresses issues and highlights recent advances in the use of biodegradable polymers. It is intended for researchers utilizing biodegradable polymers in areas from tissue engineering to controlled release of active pharmaceuticals, as well as industrial processors.


Book Synopsis Bioresorbable Polymers by : Declan Devine

Download or read book Bioresorbable Polymers written by Declan Devine and published by Walter de Gruyter GmbH & Co KG. This book was released on 2019-04-15 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioresorbable implants can be processed via conventional polymer processing methods such as extrusion, injection and compressing moulding, solvent spinning or casting. This book addresses issues and highlights recent advances in the use of biodegradable polymers. It is intended for researchers utilizing biodegradable polymers in areas from tissue engineering to controlled release of active pharmaceuticals, as well as industrial processors.

Degradation Models for Polyesters and Their Composites

Degradation Models for Polyesters and Their Composites

Author: Xiaoxiao Han

Publisher:

Published: 2011

Total Pages:

ISBN-13:

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Intensive studies are being carried out to use devices made of bioresorbable polymers inside the human body to provide various temporary functions. Typical examples include scaffolds for tissue engineering, fixation screws for broken bones and drug-loaded matrices for controlled-release. The development is entirely based on trial and error. The degradation rate strongly depends on the shape and size of the devices, making it difficult to transfer experience from one device to another. The degradation time ranges from weeks to years; animal and ultimately human trials have to be carried out, making the trial and error approach time-consuming and expensive. The entire field would benefit enormously from mathematical models capable of predicting the degradation and property change of the devices. This PhD project will develop such models as following: a) A multi-scale model for degradation of bioresorbable polyesters was developed. Events that occur at the molecular scale are modelled at the molecular scale using the kinetic Monte Carlo schemes while events that occur at the device scale are modelled using macroscopic diffusion model. b) A phenomenological model for simultaneous crystallisation and biodegradation of biodegradable polymers was developed. This model completed the degradation theory developed by Wang et al. at University of Leicester. c) The model in (b) was improved and applied to the analysis of accelerated degradation data. Temperature effects were taking into account by using Arrhenius relations. d) A model for the biodegradation of composite materials made of polyesters and calcium phosphates was developed. A calcium phosphate effectiveness map is established to show the conditions under which incorporating calcium phosphates into polyesters is effective, saturated or ineffective. f) A phase field model was developed for drug release from a swelling Hydroxypropyl methylcellulose matrix. This model can be readily extended to full three dimensional problems.


Book Synopsis Degradation Models for Polyesters and Their Composites by : Xiaoxiao Han

Download or read book Degradation Models for Polyesters and Their Composites written by Xiaoxiao Han and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Intensive studies are being carried out to use devices made of bioresorbable polymers inside the human body to provide various temporary functions. Typical examples include scaffolds for tissue engineering, fixation screws for broken bones and drug-loaded matrices for controlled-release. The development is entirely based on trial and error. The degradation rate strongly depends on the shape and size of the devices, making it difficult to transfer experience from one device to another. The degradation time ranges from weeks to years; animal and ultimately human trials have to be carried out, making the trial and error approach time-consuming and expensive. The entire field would benefit enormously from mathematical models capable of predicting the degradation and property change of the devices. This PhD project will develop such models as following: a) A multi-scale model for degradation of bioresorbable polyesters was developed. Events that occur at the molecular scale are modelled at the molecular scale using the kinetic Monte Carlo schemes while events that occur at the device scale are modelled using macroscopic diffusion model. b) A phenomenological model for simultaneous crystallisation and biodegradation of biodegradable polymers was developed. This model completed the degradation theory developed by Wang et al. at University of Leicester. c) The model in (b) was improved and applied to the analysis of accelerated degradation data. Temperature effects were taking into account by using Arrhenius relations. d) A model for the biodegradation of composite materials made of polyesters and calcium phosphates was developed. A calcium phosphate effectiveness map is established to show the conditions under which incorporating calcium phosphates into polyesters is effective, saturated or ineffective. f) A phase field model was developed for drug release from a swelling Hydroxypropyl methylcellulose matrix. This model can be readily extended to full three dimensional problems.

Synthetic Bioabsorbable Polymers for Implants

Synthetic Bioabsorbable Polymers for Implants

Author: Chandra Mauli Agrawal

Publisher: ASTM International

Published: 2000

Total Pages: 174

ISBN-13: 0803128703

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From a November 1999 symposium in Kansas City, Missouri, 12 papers explore aspects of biological implants that are absorbed by the body over time from the perspective of materials science. Their topics include the mechanical evaluation of 70:30 poly bone screws after in-vitro degradation, novel biod


Book Synopsis Synthetic Bioabsorbable Polymers for Implants by : Chandra Mauli Agrawal

Download or read book Synthetic Bioabsorbable Polymers for Implants written by Chandra Mauli Agrawal and published by ASTM International. This book was released on 2000 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: From a November 1999 symposium in Kansas City, Missouri, 12 papers explore aspects of biological implants that are absorbed by the body over time from the perspective of materials science. Their topics include the mechanical evaluation of 70:30 poly bone screws after in-vitro degradation, novel biod

Bioresorbable Polymers for Biomedical Applications

Bioresorbable Polymers for Biomedical Applications

Author: Giuseppe Perale

Publisher: Woodhead Publishing

Published: 2016-08-24

Total Pages: 630

ISBN-13: 0081002661

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Bioresorbable Polymers for Biomedical Applications: From Fundamentals to Translational Medicine provides readers with an overview of bioresorbable polymeric materials in the biomedical field. A useful resource for materials scientists in industry and academia, offering information on the fundamentals and considerations, synthesis and processing, and the clinical and R and D applications of bioresorbable polymers for biomedical applications. Focuses on biomedical applications of bioresorbable polymers Features a comprehensive range of topics including fundamentals, synthesis, processing, and applications Provides balanced coverage of the field with contributions from academia and industry Includes clinical and R and D applications of bioresorbable polymers for biomedical applications


Book Synopsis Bioresorbable Polymers for Biomedical Applications by : Giuseppe Perale

Download or read book Bioresorbable Polymers for Biomedical Applications written by Giuseppe Perale and published by Woodhead Publishing. This book was released on 2016-08-24 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioresorbable Polymers for Biomedical Applications: From Fundamentals to Translational Medicine provides readers with an overview of bioresorbable polymeric materials in the biomedical field. A useful resource for materials scientists in industry and academia, offering information on the fundamentals and considerations, synthesis and processing, and the clinical and R and D applications of bioresorbable polymers for biomedical applications. Focuses on biomedical applications of bioresorbable polymers Features a comprehensive range of topics including fundamentals, synthesis, processing, and applications Provides balanced coverage of the field with contributions from academia and industry Includes clinical and R and D applications of bioresorbable polymers for biomedical applications

Bioresorbable Polymers and their Biomedical Applications

Bioresorbable Polymers and their Biomedical Applications

Author: Declan M Devine

Publisher: Smithers Rapra

Published: 2017-04-10

Total Pages: 254

ISBN-13: 1911088092

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Bioresorbable or biodegradable polymers are commonly used in various biomedical applications. The application of bioresorbable polymers in the biomedical sector has been widely exploited by immobilising suturing thread with an analgesic or antibacterial drugs, and the development of bioresorbable vascular scaffolds, wound-healing and intravenous drug-delivery devices. Furthermore, biodegradable polymers have been investigated as a replacement for metallic orthopaedic devices due to their precise control of material composition and microstructure. These polymers are eliminated from the body via dissolution, assimilation and excretion through metabolic pathways. The hydrolysing process breaks down the polymer into smaller units and its degradation products are excreted by means of the citric acid cycle or by direct renal excretion with no residual side effects.Processing of bioresorbable implants can be achieved via conventional polymer processing methods such as extrusion, injection and compressing moulding, solvent spinning or casting. However, special consideration must be given when processing these materials because heat can cause a reduction in molecular weight due to the hydrolysing of bonds. In addition, overheating can depolymerise the polymer and, as a result, monomers can have a plasticising effect on the polymer. Recently, alternative approaches utilising rapid prototyping and micro-/nanofabrication processes have been employed.This book addresses these issues and highlights recent advances in the biomedical field that have being enabled by the use of biodegradable polymers. This book is designed as a reference guide for academic researchers utilising biodegradable polymers in a range of areas from tissue engineering to controlled release of active pharmaceuticals, through to industry-based processors of biodegradable polymers.


Book Synopsis Bioresorbable Polymers and their Biomedical Applications by : Declan M Devine

Download or read book Bioresorbable Polymers and their Biomedical Applications written by Declan M Devine and published by Smithers Rapra. This book was released on 2017-04-10 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioresorbable or biodegradable polymers are commonly used in various biomedical applications. The application of bioresorbable polymers in the biomedical sector has been widely exploited by immobilising suturing thread with an analgesic or antibacterial drugs, and the development of bioresorbable vascular scaffolds, wound-healing and intravenous drug-delivery devices. Furthermore, biodegradable polymers have been investigated as a replacement for metallic orthopaedic devices due to their precise control of material composition and microstructure. These polymers are eliminated from the body via dissolution, assimilation and excretion through metabolic pathways. The hydrolysing process breaks down the polymer into smaller units and its degradation products are excreted by means of the citric acid cycle or by direct renal excretion with no residual side effects.Processing of bioresorbable implants can be achieved via conventional polymer processing methods such as extrusion, injection and compressing moulding, solvent spinning or casting. However, special consideration must be given when processing these materials because heat can cause a reduction in molecular weight due to the hydrolysing of bonds. In addition, overheating can depolymerise the polymer and, as a result, monomers can have a plasticising effect on the polymer. Recently, alternative approaches utilising rapid prototyping and micro-/nanofabrication processes have been employed.This book addresses these issues and highlights recent advances in the biomedical field that have being enabled by the use of biodegradable polymers. This book is designed as a reference guide for academic researchers utilising biodegradable polymers in a range of areas from tissue engineering to controlled release of active pharmaceuticals, through to industry-based processors of biodegradable polymers.

Biodegradable Polyesters

Biodegradable Polyesters

Author: Stoyko Fakirov

Publisher: John Wiley & Sons

Published: 2015-04-06

Total Pages: 370

ISBN-13: 3527656979

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Collating otherwise hard-to-get and recently acquired knowledge in one work, this is a comprehensive reference on the synthesis, properties, characterization, and applications of this eco-friendly class of plastics. A group of internationally renowned researchers offer their first-hand experience and knowledge, dealing exclusively with those biodegradable polyesters that have become increasingly important over the past two decades due to environmental concerns on the one hand and newly-devised applications in the biomedical field on the other. The result is an unparalleled overview for the industrial chemist and materials scientist, as well as for developers and researchers in industry and academia alike.


Book Synopsis Biodegradable Polyesters by : Stoyko Fakirov

Download or read book Biodegradable Polyesters written by Stoyko Fakirov and published by John Wiley & Sons. This book was released on 2015-04-06 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Collating otherwise hard-to-get and recently acquired knowledge in one work, this is a comprehensive reference on the synthesis, properties, characterization, and applications of this eco-friendly class of plastics. A group of internationally renowned researchers offer their first-hand experience and knowledge, dealing exclusively with those biodegradable polyesters that have become increasingly important over the past two decades due to environmental concerns on the one hand and newly-devised applications in the biomedical field on the other. The result is an unparalleled overview for the industrial chemist and materials scientist, as well as for developers and researchers in industry and academia alike.