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Book
Polyvinyl alcohol
Authors: ---
ISBN: 128227452X 9786612274527 1847350968 9781847350961 9781282274525 Year: 2009 Publisher: Shawbury, Shrewsbury, Shropshire, U.K. Smithers Rapra Technology

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Abstract

For a number of years, plastic wastes have been accumulating at such a rate that there are now huge environmental concerns with their disposal. Options such as landfill and incineration have not been well received by the public, or indeed government legislation, and focus is now firmly upon the use of biodegradable alternatives for mass applications. One material that has been considered for mass application has been polyvinyl alcohol (PVOH). To date, the use of this material has been confined to comparativey low technology applications such as paper coatings and fibre sizing, which rely upon


Book
Carbon Nanomaterials for Therapy, Diagnosis, and Biosensing
Authors: ---
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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In the landscape of the design of carbon nanomaterials, the fine-tuning of their functionalities and physico-chemical properties has increased their potential for therapeutic, diagnostic, and biosensing applications. In this editorial, we will provide a brief overview of the contents of this Special Issue. In particular, nanoplatforms originating from the synergistic combination of carbon-based nanomaterials (i.e., nanotubes, graphene, graphene oxide, carbon quantum dots, nanodiamond, etc.) with various functional molecules such as drugs, natural compounds, biomolecules, polymers, metal nanoparticles, and macrocycles that have useful applications in drug delivery, multi-targeted therapies, theranostic as well as scaffolds in tissue engineering, and as sensing materials have been selected for publication as Articles or Mini Reviews. The variety of applications covered by the nine articles published in this Special Issue of Nanomaterials are proof of the growing attention that the use of carbon nanomaterials in the biomedical/pharmaceutical field has received in recent years. We hope that readers find the contents of this Special Issue useful for their research, which is aimed to advance carbon nanomaterials from the laboratory to clinical nanomedicine.


Book
Flexible Electronics: Fabrication and Ubiquitous Integration
Author:
ISBN: 3038978299 3038978280 Year: 2019 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Flexible Electronics platforms are increasingly used in the fields of sensors, displays, and energy conversion with the ultimate goal of facilitating their ubiquitous integration in our daily lives. Some of the key advantages associated with flexible electronic platforms are: bendability, lightweight, elastic, conformally shaped, nonbreakable, roll-to-roll manufacturable, and large-area. To realize their full potential, however, it is necessary to develop new methods for the fabrication of multifunctional flexible electronics at a reduced cost and with an increased resistance to mechanical fatigue. Accordingly, this Special Issue seeks to showcase short communications, research papers, and review articles that focus on novel methodological development for the fabrication, and integration of flexible electronics in healthcare, environmental monitoring, displays and human-machine interactivity, robotics, communication and wireless networks, and energy conversion, management, and storage.


Book
Polyvinyl alcohol/halloysite nanotube bionanocomposites as biodegradable packaging materials
Authors: ---
ISBN: 9811573565 9811573557 Year: 2020 Publisher: Springer Singapore

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This book focuses on the preparation and characterisation of polyvinyl alcohol (PVA)/ halloysite nanotube (HNT) bionanocomposite films with different HNT contents for potential use in food packaging. It examines the effect of material composition and nanofiller content on mechanical, thermal and optical properties in relation to their morphological structures, and also comprehensively describes the water resistance, biodegradation and migration rates of such bionanocomposites, as well as their barrier properties in terms of water vapour transmission, and water vapour, air and oxygen permeabilities. Further, this book discusses the use of Nielsen model and Cussler model to predict the relative permeability of bionanocomposites, demonstrating that Nielsen model is more effective and in better agreement with experimental data obtained. Lastly, it discusses the application of bionanocomposite films in food packaging to prolong the shelf life of freshly cut avocados and peaches.


Book
Functional Polymers as Innovative Tools in the Delivery of Antimicrobial Agents
Author:
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

This Special Issue explored different topics concerning recent progress in the synthesis and characterization of suitable innovative macromolecular systems, proposed as carriers of specific antimicrobial molecules, to be employed in the biomedical and pharmaceutical fields. Many infectious diseases are induced by omnipresent micro-organisms, including bacteria, viruses, protozoa, fungi, and algae, and, consequently, are very common, accounting for a significant share of the global disease burden. Unfortunately, antimicrobial resistance, adverse effects, and the high cost of antimicrobials are crucial health challenges worldwide. One of the common efforts in addressing this issue lies in improving the existing antimicrobial delivery systems. In this regard, nanoparticles as well as three-dimensional hydrophilic systems represent valuable tools able to ensure excellent performances. Biocompatible polymeric particles, entrapping these bioactive molecules, are capable of releasing them over a desired period of time, thereby decreasing the frequency of their administration. At the same time, these systems are able to protect antimicrobial drugs from degradation, enhancing their bioavailability. This Special Issue serves to highlight and capture the contemporary progress recorded in this field.


Book
Environmental Biocatalysis : From Remediation to Waste Valorization
Authors: ---
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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This Special Issue aims to highlight the dual potential of novel biocatalytic processes, where the first part is dedicated to waste valorization for the production of high value products, while the second part is focused on the detoxification of pollutants. Several examples of microbial systems employed for the valorization of waste streams derived by the forest, agricultural, and food industries or the use of whole-cell or enzyme approaches for the removal of nitrogen or dyes from industrial wastewaters are provided. Last but not least, an example of the utilization of polyhydroxyalkanoates (PHAs) was highlighted for the production of fatty acids, which were used for the enzymatic synthesis of sugar esters with antimicrobial properties.


Book
Polymer Membranes for Gas Separation
Authors: ---
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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This Special Issue on “Polymer Membranes for Gas Separation” of the journal Membranes aims to offer an overview about the different applications and strategies available to improve the separation performances based on the material choice and the process conditions.Various topics have been discussed, including the synthesis and characterization of novel membrane materials, membrane aging, and the impact of process conditions on transport phenomena.


Book
Multiscaled PVA bionanocomposite films : characterisation and nanoscale modelling
Authors: ---
ISBN: 981158771X 9811587701 Year: 2021 Publisher: Singapore : Springer,

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This book highlights a novel and holistic approach to multiscaled PVA bionanocomposite films used for electrical sensing, medical and packaging applications. With a combination of material characterization and modeling to understand the effect of nanoparticle size and shape, as well as 3D interphase properties and features such as interphase modulus and nanoscale dimensions, this book substantiates how excellent mechanical and thermal properties of these materials are achieved. Also it addresses the importance of using economical and ecofriendly bionanocomposites as potential green materials to support the goal of environmental sustainability with multifunctional properties.

Keywords

Surfaces (Physics). --- Interfaces (Physical sciences). --- Thin films. --- Materials science. --- Nanotechnology. --- Biomaterials. --- Materials—Surfaces. --- Ceramics. --- Glass. --- Composites (Materials). --- Composite materials. --- Surface and Interface Science, Thin Films. --- Characterization and Evaluation of Materials. --- Nanotechnology and Microengineering. --- Surfaces and Interfaces, Thin Films. --- Ceramics, Glass, Composites, Natural Materials. --- Composites (Materials) --- Multiphase materials --- Reinforced solids --- Solids, Reinforced --- Two phase materials --- Materials --- Amorphous substances --- Ceramics --- Glazing --- Ceramic technology --- Industrial ceramics --- Keramics --- Building materials --- Chemistry, Technical --- Clay --- Biocompatible materials --- Biomaterials --- Medical materials --- Medicine --- Biomedical engineering --- Biocompatibility --- Prosthesis --- Molecular technology --- Nanoscale technology --- High technology --- Material science --- Physical sciences --- Films, Thin --- Solid film --- Solid state electronics --- Solids --- Surfaces (Technology) --- Coatings --- Thick films --- Surface chemistry --- Surfaces (Physics) --- Physics --- Bioartificial materials --- Hemocompatible materials --- Nanocomposites (Materials) --- Polyvinyl alcohol. --- Alcohols --- Vinyl polymers --- Nanocomposite materials --- Nanostructured composite materials --- Nanostructured composites --- Composite materials --- Nanostructured materials


Book
Advances in Hydrogels
Authors: ---
ISBN: 3036561234 3036561242 Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Hydrogels are a class of soft materials with crosslinked network structures. They show good biocompatibility, biodegradability, hydrophilicity, and mechanical properties similar to those of tissue, so they have a wide range of applications. In recent years, a variety of multifunctional hydrogels with excellent performance have been developed, greatly expanding the depth and breadth of their applications. This book is the reprint of the Special Issue “Advances in Hydrogels”, which focused on the recent advances regarding hydrogels, aiming to provide reference for researchers in related fields. This book included one editorial, thirteen original research articles, and three valuable reviews from thirteen different countries including Canada, China, Thailand, Mexico, India, Saudi Arabia, Chile, Germany, the Czech Republic, Colombia, Romania, Israel, and the USA.

Keywords

Research & information: general --- Physics --- molecularly imprinted polymeric hydrogels --- synthetic receptors --- zearalenone --- glucuronic acid --- fluorescent sensors --- PEG-PLA --- thermoresponsive hydrogel --- redox-sensitive --- hydrogel --- superabsorbent --- e-beam --- swelling --- crosslinking --- carboxymethyl cellulose --- drying --- RW --- CHD --- radiation penetration depth --- lecithin --- rheology --- scanning electron microscopy --- drying and swelling --- extracellular matrix --- mesh size --- hydrogels --- photopolymers --- volume holography --- photo curing --- multifunctional biomedical biomaterials --- light-responsive materials --- novel formulations --- natural polymer --- synthetic polymer --- topical application --- cryoconcentrated blueberry juice --- stability --- storage --- bioactive compounds content --- antioxidant activity --- water gel --- photocrosslinking --- natural polymer modification --- biomedical-engineering applications --- vitamin D --- nanoemulsion --- gelled matrices --- texture analysis --- gelatin --- sensory evaluation --- gummy --- thermosensitive --- P(OEGMA-co-MEO2MA) --- microgel --- scaffold --- 3D culture --- commercial copper sulfide (CuS) --- alginate --- photothermal therapy (PTT) --- near-infrared II windows --- cancer --- glioblastoma --- mechanobiology --- mechanoreceptor --- mechanotransduction --- quercetin --- cyclodextrin --- polyvinyl alcohol --- inclusion complex --- photo-polymerization --- potassium acrylate-co-acrylamide --- swelling capacity --- multistructured --- adhesive strength --- hydrogen bonding --- n/a


Book
Performance and Application of Novel Biocomposites
Author:
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Amidst impending climate change and enhanced pollution levels around the globe, the need of the hour is to develop bio-based materials that are sustainable and possess comparable performance properties to their synthetic counterparts. In light of the aforementioned, numerous investigations are being conducted to identify, process, and create materials that are concurrently innocuous towards the environment and have superior properties. This book is a collection of such scientific articles that propagate novel ideas for the development of polymeric composite materials, which have application potential in numerous fields such as medicine, automobile, aviation, construction, etc. It also contains a pedagogical article that proposes some strategies to continue experimental research during pandemics. This book will provide readers a quick glance into recent developments regarding polymeric materials and will encourage them to propagate these research ideas further.

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