Availability Of Metal Ions And Zno Nanoparticles In Aqueous Media

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Availability of Metal Ions and ZnO Nanoparticles in Aqueous Media

Author : Sara Cruz González
Publisher :
ISBN 13 :
Total Pages : 169 pages
Book Rating : 4.:/5 (112 download)

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Book Synopsis Availability of Metal Ions and ZnO Nanoparticles in Aqueous Media by : Sara Cruz González

Download or read book Availability of Metal Ions and ZnO Nanoparticles in Aqueous Media written by Sara Cruz González and published by . This book was released on 2014 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: La presència de determinats metalls, ja sigui en forma del metall lliure, formant complexos amb lligands o en forma de nanopartícules metàl·liques té efectes negatius en el medi ambient. Per aquest motiu, l'estudi de la disponibilitat de metalls és important per determinar el seu impacte mediambiental. En aquest treball s'ha estudiat un sistema i una tècnica per a la mesura de la disponibilitat. El sistema té la particularitat de contenir, en dispersió, nanopartícules d'òxids metàl·lics. Una primera part de l'estudi s'enfoca a la caracterització físic-química de dispersions sintètiques de nanopartícules. Aquesta part estudia l'efecte que tenen les condicions del medi (pH, salinitat, contingut de matèria orgànica, etc.) en el comportament de les nanopartícules. S'han determinat processos com són l'agregació, solubilització i sedimentació, en funció de les condicions del medi. Tots aquests processos juguen un paper molt important en el destí de les nanopartícules en el medi ambient i en la seva toxicitat. La segona part d'aquesta tesi es centra en l'aplicació de la tècnica analítica DGT (Diffusive Gradient in Thin films) per la mesura de fluxos de metall disponibles en solucions aquoses. En el present treball, s'ha determinat la solubilitat de nanopartícules en dispersions aquoses. Per altra banda s'ha estudiat la tècnica DGT des d'un punt de vista físic-químic. Les contribucions dels fluxos de complexos s'avaluen amb un paràmetre que té en compte les constants de dissociació dels complexos així com la seva difusió. S'han estudiat les acumulacions de metalls que en solució tenen com especies dominants complexos carregats elèctricament. Si aquesta càrrega és negativa, l'acumulació disminueix en baixar la força iònica i a l'inrevés en el cas contrari. Aquest fenomen s'explica per la repulsió electrostàtica entre la càrrega negativa del disc de resina i el complex quan aquest és parcialment làbil. En conclusió, la resina sembla jugar un paper més actiu del que es pensava en l'acumulació de metalls en DGT.

Zinc Oxide Nanostructures: Synthesis and Characterization

Author : Sotirios Baskoutas
Publisher : MDPI
ISBN 13 : 3038973025
Total Pages : 303 pages
Book Rating : 4.0/5 (389 download)

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Book Synopsis Zinc Oxide Nanostructures: Synthesis and Characterization by : Sotirios Baskoutas

Download or read book Zinc Oxide Nanostructures: Synthesis and Characterization written by Sotirios Baskoutas and published by MDPI. This book was released on 2018-12-04 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Zinc Oxide Nanostructures: Synthesis and Characterization" that was published in Materials

Application and Behavior of Nanomaterials in Water Treatment

Author : Protima Rauwel
Publisher : MDPI
ISBN 13 : 3039211714
Total Pages : 174 pages
Book Rating : 4.0/5 (392 download)

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Book Synopsis Application and Behavior of Nanomaterials in Water Treatment by : Protima Rauwel

Download or read book Application and Behavior of Nanomaterials in Water Treatment written by Protima Rauwel and published by MDPI. This book was released on 2019-08-27 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book compiles scientific articles describing advances in nanomaterial synthesis and their application in water remediation. The publications treat diverse problems such as dye degradation, heavy metal ion, as well as radioactive element capture and sequestration. There are 10 original research articles and one review article. The latter proposes graphene/CNT and Prussian blue nanocomposites for radioactive 137-cesium extraction from aqueous media. All reports thoroughly characterize the nanomaterials post-synthesis and describe their catalytic, photocatalytic, or ion exchange activities in contaminated water. The dyes studied in the collection are azo dyes, i.e. methylene blue and orange, rhodamine B, phenolic dyes viz. bromophenol blue, and other dyes with sulfonyl groups. Extraction of radioactive elements, including cationic 137Cs+ and anionic 125I−, is also investigated. The omnipresence of ZnO nanoparticles in everyday products and their effects in wastewater are also evaluated. Layered double hydroxide are capable of capturing Ag ions, which then has a catalytic effect on dye degradation. The nanomaterials considered are varied, viz., graphene, CNT, Prussian blue, nanoporous carbon, layered double hydroxides, magnetite, ferrites, organic powders, polymer membranes, bacteria, and inorganic nanomaterials such as MnO and Ag. The book targets an interdisciplinary readership.

Zinc Oxide Based Nano Materials and Devices

Author : , Prof. Dr. Ahmed Nahhas
Publisher : BoD – Books on Demand
ISBN 13 : 1789239575
Total Pages : 148 pages
Book Rating : 4.7/5 (892 download)

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Book Synopsis Zinc Oxide Based Nano Materials and Devices by : , Prof. Dr. Ahmed Nahhas

Download or read book Zinc Oxide Based Nano Materials and Devices written by , Prof. Dr. Ahmed Nahhas and published by BoD – Books on Demand. This book was released on 2019-10-09 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a review of recent advances in ZnO-based nanomaterials and devices. ZnO as a nanomaterial has gained substantial interest in the research area of wide bandgap semiconductors and is considered to be one of the major candidates for electronic and photonic applications. ZnO has distinguished and interesting electrical and optical properties and is considered to be a potential material in optoelectronic applications such as solar cells, surface acoustic wave devices, and UV emitters. ZnO's unique properties have attracted several researchers to study its electrical and optical properties. As a nanostructured material, ZnO exhibits many advantages for nanodevices. Moreover, it has the ability to absorb the UV radiation.

Nanotechnology for Sustainable Development

Author : Mamadou S. Diallo
Publisher : Springer
ISBN 13 : 9783319050409
Total Pages : 0 pages
Book Rating : 4.0/5 (54 download)

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Book Synopsis Nanotechnology for Sustainable Development by : Mamadou S. Diallo

Download or read book Nanotechnology for Sustainable Development written by Mamadou S. Diallo and published by Springer. This book was released on 2014-06-02 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world is facing great challenges in meeting rising demands for basic commodities (e.g., food, water, and energy), finished goods (e.g., cell phones, cars and airplanes) and services (e.g., shelter, healthcare and employment) while reducing and minimizing the impact of human activities on Earth's global environment and climate. Nanotechnology has emerged as a versatile platform that could provide efficient, cost-effective, and environmentally acceptable solutions to the global sustainability challenges facing society. This volume is devoted to the utilization of nanotechnology to improve or achieve sustainable development. Recent advances are highlighted and opportunities of utilizing nanotechnology to address global challenges in water purification, clean energy, greenhouse gas management, materials supply/utilization and manufacturing are discussed. Also, societal perspectives are addressed and an outlook of the role of nanotechnology in the convergence of knowledge, technology and society for achieving sustainable development is provided. This book offers a thematic collection of papers previously published in the Journal of Nanoparticle Research.

Toxicology

Author : Marcelo Larramendy
Publisher : BoD – Books on Demand
ISBN 13 : 9535127160
Total Pages : 220 pages
Book Rating : 4.5/5 (351 download)

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Book Synopsis Toxicology by : Marcelo Larramendy

Download or read book Toxicology written by Marcelo Larramendy and published by BoD – Books on Demand. This book was released on 2016-10-26 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited book, Toxicology - New Aspects to This Scientific Conundrum, is intended to provide an overview on the different xenobiotics employed every day in our anthropogenic activities. We hope that this book will continue to meet the expectations and needs of all interested in the implications for the living species of known and new toxicants and to guide them in the future investigations.

Advances in Spectroscopy: Molecules to Materials

Author : Dheeraj Kumar Singh
Publisher : Springer Nature
ISBN 13 : 9811502021
Total Pages : 454 pages
Book Rating : 4.8/5 (115 download)

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Book Synopsis Advances in Spectroscopy: Molecules to Materials by : Dheeraj Kumar Singh

Download or read book Advances in Spectroscopy: Molecules to Materials written by Dheeraj Kumar Singh and published by Springer Nature. This book was released on 2019-10-24 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents and discusses recent developments in the broad field of spectroscopy, providing the reader with an updated overview. The main objective is to introduce them to recent innovations and current trends in spectroscopy applied to molecules and materials. The book also brings together experimentalists and theoreticians to highlight the multidimensional aspects of spectroscopy and discuss the latest issues. Accordingly, it provides insights not only into the general goals of spectroscopy, but also into how the various spectroscopic techniques represent a toolbox that can be used to gain a more detailed understanding of molecular systems and complex chemical problems. Besides technical aspects, basic theoretical interpretations of spectroscopic results are also presented. The spectroscopy techniques discussed include UV-visible absorption spectroscopy, Raman spectroscopy, IR absorption spectroscopy, fluorescence spectroscopy, and time-resolved spectroscopy. In turn, basic tools like lasers and theoretical modeling approaches are also presented. Lastly, applications for the characterization of fundamental properties of molecules (environmental aspects, biomolecules, pharmaceutical drugs, hazardous molecules, etc.) and materials (nanomaterials, nuclear chemistry materials, biomaterials, etc.) are discussed. Given its scope, the book offers a valuable resource for researchers from various branches of science, and presents new techniques that can be applied to their specific problems.

Advanced Functional Nanoparticles "Boon or Bane" for Environment Remediation Applications

Download Advanced Functional Nanoparticles

Author : Raman Kumar
Publisher : Springer Nature
ISBN 13 : 3031244168
Total Pages : 372 pages
Book Rating : 4.0/5 (312 download)

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Book Synopsis Advanced Functional Nanoparticles "Boon or Bane" for Environment Remediation Applications by : Raman Kumar

Download or read book Advanced Functional Nanoparticles "Boon or Bane" for Environment Remediation Applications written by Raman Kumar and published by Springer Nature. This book was released on 2023-06-18 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook provides an overview of applications of advanced nanomaterials, basic lab set up and requirements in for their synthesis, techniques and career scope of nanotechnology in industries and research. Pollution of air, water, soil is an ever increasing environmental problem attributed to increasing population, global industrialization and unplanned urbanization, has acquired alarming dimensions. It is the most dangerous and worst problem that puts the lives of people, animals, and plants on the earth in danger. An effective, efficient and sustainable approach for managing pollution related problems requires the utmost attention of the scientific community to tackle this menace for the society to lead a healthy and quality life. A number of techniques and books, literatures have been developed in recent years to treat environmental contaminants. However, most of these are not economically viable, environmentally benign and suffer due to cumbersome multi-step manipulations. The purpose of this textbook is to inform students about the application of functionalized nanoparticles as a new approach to supplement traditional treatment methods in cost and time effective manner. The simplistic means to assemble nanoparticles to the constituents of next generation technologies in environment cleanup and sensing are the main objectives of the book. The toxicological footprinting of released advanced functional nanomaterials in ecosystem will also be discussed in the book.

Nanobiomaterials in Antimicrobial Therapy

Author : Alexandru Grumezescu
Publisher : William Andrew
ISBN 13 : 0323428878
Total Pages : 578 pages
Book Rating : 4.3/5 (234 download)

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Book Synopsis Nanobiomaterials in Antimicrobial Therapy by : Alexandru Grumezescu

Download or read book Nanobiomaterials in Antimicrobial Therapy written by Alexandru Grumezescu and published by William Andrew. This book was released on 2016-03-08 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanobiomaterials in Antimicrobial Therapy presents novel antimicrobial approaches that enable nanotechnology to be used effectively in the treatment of infections. This field has gained a large amount of interest over the last decade, in response to the high resistance of pathogens to antibiotics. Leading researchers from around the world discuss the synthesis routes of nanobiomaterials, characterization, and their applications as antimicrobial agents. The books covers various aspects: mechanisms of toxicity for inorganic nanoparticles against bacteria; the development of excellent carriers for the transport of a high variety of antimicrobials; the use of nanomaterials to facilitate both diagnosis and therapeutic approaches against infectious agents; strategies to control biofilms based on enzymes, biosurfactants, or magnetotactic bacteria; bacterial adhesion onto polymeric surfaces and novel materials; and antimicrobial photodynamic inactivation. This book will be of interest to postdoctoral researchers, professors and students engaged in the fields of materials science, biotechnology and applied chemistry. It will also be highly valuable to those working in industry, including pharmaceutics and biotechnology companies, medical researchers, biomedical engineers and advanced clinicians. - A methodical approach to this highly relevant subject for researchers, practitioners and students working in biomedical, biotechnological and engineering fields - A valuable guide to recent scientific progress and the latest application methods - Proposes novel opportunities and ideas for developing or improving technologies in nanomedicine and nanobiology

Essentials of Inorganic Materials Synthesis

Author : C. N. R. Rao
Publisher : John Wiley & Sons
ISBN 13 : 111883254X
Total Pages : 231 pages
Book Rating : 4.1/5 (188 download)

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Book Synopsis Essentials of Inorganic Materials Synthesis by : C. N. R. Rao

Download or read book Essentials of Inorganic Materials Synthesis written by C. N. R. Rao and published by John Wiley & Sons. This book was released on 2015-04-06 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: This compact handbook describes all the important methods of synthesis employed today for synthesizing inorganic materials. Some features: Focuses on modern inorganic materials with applications in nanotechnology, energy materials, and sustainability Synthesis is a crucial component of materials science and technology; this book provides a simple introduction as well as an updated description of methods Written in a very simple style, providing references to the literature to get details of the methods of preparation when required

Carbon Nanomaterials and their Composites as Adsorbents

Author : J. Tharini
Publisher : Springer Nature
ISBN 13 : 3031487192
Total Pages : 300 pages
Book Rating : 4.0/5 (314 download)

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Book Synopsis Carbon Nanomaterials and their Composites as Adsorbents by : J. Tharini

Download or read book Carbon Nanomaterials and their Composites as Adsorbents written by J. Tharini and published by Springer Nature. This book was released on with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Ecotoxicology of Nanoparticles in Aquatic Systems

Author : Julian Blasco
Publisher : CRC Press
ISBN 13 : 1351657550
Total Pages : 270 pages
Book Rating : 4.3/5 (516 download)

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Book Synopsis Ecotoxicology of Nanoparticles in Aquatic Systems by : Julian Blasco

Download or read book Ecotoxicology of Nanoparticles in Aquatic Systems written by Julian Blasco and published by CRC Press. This book was released on 2019-07-19 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of nanoparticles in medicine, industrial, and other applications has triggered an interest in their potential. This book explores the use of nanoparticles related to their occurrence in the environment, their impact on biota in aquatic systems, application of new methodologies, and changes associated with new global scenarios. The book also covers the bioaccumulation and internalization of nanoparticles as key aspects to assess their uptake and discusses the methodologies for testing ENPs ecotoxicity at different trophic levels.

Nanotechnology in Diagnosis, Treatment and Prophylaxis of Infectious Diseases

Author : Mahendra Rai
Publisher : Academic Press
ISBN 13 : 0128014717
Total Pages : 341 pages
Book Rating : 4.1/5 (28 download)

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Book Synopsis Nanotechnology in Diagnosis, Treatment and Prophylaxis of Infectious Diseases by : Mahendra Rai

Download or read book Nanotechnology in Diagnosis, Treatment and Prophylaxis of Infectious Diseases written by Mahendra Rai and published by Academic Press. This book was released on 2015-05-23 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanotechnology in Diagnosis, Treatment and Prophylaxis of Infectious Diseases delivers comprehensive coverage of the application of nanotechnology to pressing problems in infectious disease. This text equips readers with cutting-edge knowledge of promising developments and future prospects in nanotechnology, paying special attention to microbes that are now resistant to conventional antibiotics, a concerning problem in modern medicine. Readers will find a thorough discussion of this new approach to infectious disease treatment, including the reasons nanotechnology presents a promising avenue for the diagnosis, treatment, and prophylaxis of infectious diseases. - Provides a comprehensive overview of the use of nanotechnology in the treatment and diagnosis of infectious diseases - Covers all common types of infective agents, including bacteria, viruses, fungi, and protozoa, along with their vectors, ticks, mosquitoes, flies, etc. - Delivers commentary from an international researcher base, providing insights across differing economic statuses - Includes a foundation of basic nanotechnological concepts to aid in designing new strategies to combat several pathogenic diseases and cancer - Illustrates the high antimicrobial potential of nanoparticles, ultimately demonstrating how they are a promising alternative class that can be successfully used in fighting a myriad of infections

Engineered Nanoparticles

Author : Ashok K. Singh
Publisher : Academic Press
ISBN 13 : 012801492X
Total Pages : 556 pages
Book Rating : 4.1/5 (28 download)

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Book Synopsis Engineered Nanoparticles by : Ashok K. Singh

Download or read book Engineered Nanoparticles written by Ashok K. Singh and published by Academic Press. This book was released on 2015-11-24 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: Engineered Nanoparticles: Structure, Properties and Mechanisms of Toxicity is an indispensable introduction to engineered nanomaterials (ENM) and their potential adverse effects on human health and the environment. Although research in the area of pharmacology and toxicology of ENM is rapidly advancing, a possible correlation between their physicochemical properties and biomedical properties or toxicity is not yet fully understood. This understanding is essential to develop strategies for the safe applications and handling of ENM. The book comprehensively defines the current understanding of ENM toxicity, first describing these materials and their physicochemical properties, and then discussing the toxicological theory and methodology before finally demonstrating the potential impact of ENM on the environment and human health. It represents an essential reference for students and investigators in toxicology, pharmacology, chemistry, material sciences, medicine, and those in related disciplines who require an introduction to ENM and their potential toxicological effects. - Provides state-of-the-art physicochemical descriptions and methodologies for the characterization of engineered nanomaterials (ENM) - Describes the potential toxicological effects of ENM and the nanotoxicological mechanisms of action - Presents how to apply theory to practice in a public health and risk assessment setting

Advanced Nanomaterials for Wastewater Remediation

Author : Ravindra Kumar Gautam
Publisher : CRC Press
ISBN 13 : 1315351129
Total Pages : 438 pages
Book Rating : 4.3/5 (153 download)

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Book Synopsis Advanced Nanomaterials for Wastewater Remediation by : Ravindra Kumar Gautam

Download or read book Advanced Nanomaterials for Wastewater Remediation written by Ravindra Kumar Gautam and published by CRC Press. This book was released on 2016-08-05 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contamination of aqueous environments by hazardous chemical compounds is the direct cause of the decline of safe clean water supply throughout the globe. The use of unconventional water sources such as treated wastewater will be a new norm. Emerging nanotechnological innovations have great potential for wastewater remediation processes. Applications that use smart nanomaterials of inorganic and organic origin improve treatment efficiency and lower energy requirements. This book describes the synthesis, fabrication, and application of advanced nanomaterials in water treatment processes; their adsorption, transformation into low toxic forms, or degradation phenomena, and the adsorption and separation of hazardous dyes, organic pollutants, heavy metals and metalloids from aqueous solutions. It explains the use of different categories of nanomaterials for various pollutants and enhances understanding of nanotechnology-based water remediation to make it less toxic and reusable.

Electrochemical Studies of Colloidal Zinc Oxide

Author : Maluge Neluni Anne Perera
Publisher :
ISBN 13 :
Total Pages : 390 pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis Electrochemical Studies of Colloidal Zinc Oxide by : Maluge Neluni Anne Perera

Download or read book Electrochemical Studies of Colloidal Zinc Oxide written by Maluge Neluni Anne Perera and published by . This book was released on 2013 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dissertation here in describes efforts towards the development of electrochemical methods to determine the free energy of formation of semiconductor nanoparticles (SCNP). This method is based on determining the electrochemical reduction potential of metal ions that compose the NP. This method allows fundamental thermodynamic properties to be correlated with size and shape of semiconductor nanostructures. The research was done using zinc oxide (ZnO) NPs and the reduction potential of ZnO NPs was determined by reducing Zn2+ in ZnO NPs at a Hg ultramicroelectrode. ZnO NPs of diameters ranging from ~11 nm to ~77 nm were synthesized and their reduction potentials, surface free energies and average surface tension were estimated. As a reference system to ZnO NPs, electrochemical reduction of Zn2+ was studied using different Zn2+ precursors in non-aqueous and aqueous media on Hg, C, fluorine doped SnO2 (FTO) and Pt electrodes. According to the results, Zn(Ac)2 shows a two-step electron transfer process in CH3CN on Hg, C and FTO and the most reproducible CVs were obtained on FTO. Furthermore, the observation of two steps in Zn2+ reduction in CH3CN led to the testing of the postulate of the existence of a Zn+ intermediate species. Moreover, observation of the formation of NPs during the study of the existence of Zn+ intermediate species led to the electrochemical synthesis of possible Zn based particles via electrochemical reduction of Zn(Ac)2 on FTO in CH3CN. By changing the reduction time and concentration of reacting species it was possible to obtain stable particles with different luminescence properties.

Biocomposites

Author : Shakeel Ahmed
Publisher : CRC Press
ISBN 13 : 135161715X
Total Pages : 496 pages
Book Rating : 4.3/5 (516 download)

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Book Synopsis Biocomposites by : Shakeel Ahmed

Download or read book Biocomposites written by Shakeel Ahmed and published by CRC Press. This book was released on 2018-04-17 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biocomposites, formed by a matrix and a reinforcement of natural fibers, often mimic the structure of living materials and offer the strength of the matrix as well as biocompatibility. Being renewable, cheap, recyclable, and biodegradable, they have witnessed rapidly growing interest in terms of industrial and fundamental applications. This book focuses on fiber-based composites applied to biomedical and environmental applications. It presents a comprehensive survey of biocomposites from the existing literature, paying particular attention to various biomedical and environmental applications. The text describes mechanical designs and manufacturing aspects of various fibrous polymer matrix composites and presents examples of the synthesis and development of bionanocomposites and their applications. The book is the first of its kind to present all these topics together unlike most other books on nano-/biocomposites that are generally limited to their fundamentals, different methods of synthesis, and applications.