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Book
Bio-Based Polymeric Films
Authors: ---
ISBN: 303655937X 3036559388 Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

These days, massive consumer demands for short-term single-use plastic materials have produced huge plastic waste, which in turn has created tremendous environmental pollution. Biodegradable polymers or biopolymers can be used to develop alternatives to synthetic petroleum-based plastics. Different sources of biopolymers, like carbohydrates, proteins, and lipids, as well as biodegradable polymers such as polyesters, polyamides, polyurethanes, etc., have been utilized recently to make environmentally benign biodegradable plastic.


Book
Phenolic Compounds in Food : Characterization and Health Benefits
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ISBN: 3036561153 3036561161 Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Phenolic compounds in food such as fruits, vegetables, wine, spices, and oils have been characterized and their possible effects on human health has been studied in depth. Several technological aspects have also been considered concerning the sustainable extraction of phenolic compounds, the long-term storage effects, and the influence of fermentation and boiling techniques on their properties.


Book
Advances in Polymeric Materials for Biomedical Applications
Authors: ---
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Significant research efforts are currently being undertaken in the field of natural and synthetic polymers for a range of biomedical applications. (Co)polymer molecular structure, topology, self-assemblies, biodegradation, and hydrophobicity are of biomaterial importance for intrinsically biocompatible polymer systems. This book is comprised of nine chapters, published previously as original research contributions of the Special Issue focused on advances in polymeric materials for biomedical applications. The authors of these contributions are predominantly from central European countries, Italy and the United Kingdom. The content of this book will be of interest to scientists, scholars and students working in this area of knowledge, reflecting the progress in the development of advanced natural and synthetic polymer biomaterials.


Book
Natural Degradation: Polymer Degradation under Different Conditions
Authors: ---
ISBN: 3036551344 3036551336 Year: 2022 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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This book focuses on some fundamental issues of polymers’ natural degradation. It is mostly devoted to the different aspects of biodegradation, but some data on the action of water, oxygen, ozone, and UV/Vis light is also included. The consideration of the biodegradation in vivo as the superposition of decay and synthesis provides the opportunity for a fresh look at well-known processes.

Keywords

Research & information: general --- Chemistry --- gelatin methacryloyl --- osteoinduction --- tannic acid --- crosslinking --- hydrogel --- biodegradable --- poly(3-hydroxybutyrate) --- chitosan --- electrospinning --- thermal oxidation --- biodegradation --- Sturm’s method --- biodegradation rates --- arterial hypertension --- vertebral cartilage --- rhomboid fossa --- anaerobic digestion --- biosorbent --- biostimulant --- magnetite --- nanoparticles --- kinetic model --- polyvinyl chloride (PVC) --- pyrolysis --- thermogravimetric analysis (TGA) --- kinetics --- thermodynamics --- artificial neural networks (ANN) --- mechanochemical method --- recycled polyurethane foam --- orthogonal test --- tensile strength --- thermal conductivity --- enzymatic hydrolysis --- deep eutectic solvents --- polyethylene terephthalate --- Box-Behnken design --- microwave depolymerization --- biodegradable polyester --- ultrafine electrospun fibers --- tetraphenylporphyrin --- metalloporphyrin complexes --- Fe(III) --- Sn(IV) --- X-ray diffraction --- DSC --- spin probe EPR method --- SEM --- biopolymeric nanoparticles --- synthesis --- applications --- medicine --- agriculture --- mechanical recycling --- closed-loop --- polyolefins --- circular testing --- polymer degradation --- epoxy resin --- composite material --- hygrothermal ageing --- water diffusion --- Fick model deviation --- statistical analysis --- box plot --- PCA --- titanium silicon oxide --- hydrolytic degradation --- titania --- silica --- antimicrobial activity --- photocatalytic degradation --- n/a --- Sturm's method


Book
Functional Polymer Solutions and Gels-Physics and Novel Applications : Physics and Novel Applications
Authors: ---
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

“Functional Polymer Solutions and Gels—Physics and Novel Applications” contains a broad range of articles in this vast field of polymer and soft matter science. It shows insight into the field by highlighting how sticky (non-covalent) chemical bonds can assemble a seemingly water-like liquid into a gel, how ionic liquids influence the gelation behavior of poly(N-Isopropylacrylamide) as well as how the molecular composition of functional copolymers is reflected in the temperature-responsiveness. These physics were augmented by theoretical works on drag-reduction. Also, drug-release – an improved control of how fast or dependent on an external factor – and antibacterial properties were the topic of several works. Biomedical applications on how cell growth can be influenced and how vessels in biological systems, e.g., blood vessels, can be improved by functional polymers were complemented with papers on tomography by using gels. On totally different lines, also the topic of how asphalt can be improved and how functional polymers can be used for the enrichment and removal of substances. These different papers are a good representation of the whole area of functional polymers.

Keywords

Poly(N-isopropylacrylamide) --- tacticity --- ionic liquid --- rheology --- hydrogel --- vascular graft --- braided fiber strut --- swellability --- mechanical property --- N-isopropylacrylamide --- lower critical solution temperature --- thermoresponsive polymers --- hydrophobic interactions --- statistical modeling --- SBS-modified asphalt binder --- UV aging --- rheological properties --- functional group --- cracking --- osteoporosis --- strontium --- polyphenol tannic acid --- titanium --- osteoblasts --- osteoclasts --- hydrophilic molecularly imprinted chitosan --- deep eutectic solvents --- solid phase microextraction --- gallic acid --- response surface methodology --- coating --- drug delivery --- surface roughness --- polymers --- mesoporous silica --- polypropylene --- nonwoven fibers --- plasma --- imprinted polymer --- chromium --- carbon-fibers --- multifunctional composites --- nanocomposites --- fracture toughness --- associative polymer colloids --- micellar assemblies --- Reynolds stress model --- polymer --- turbulent model --- drag reduction --- DNS --- responsive gels in biomedical and diagnostic applications --- gel --- precision --- radiation therapy --- dosimetry --- 3D --- flattening filter free --- FFF --- oxygen scavenger --- dose rate --- magnetic resonance --- fluorescent gels --- radio-fluorogenic (RFG) gel --- tomographic fluorescence imaging --- polymer-gel radiation dosimetry --- 3D radiation dosimetry --- microscopic characteristic --- poly (styrene-butadiene-styrene)-modified asphalt --- modified clamps --- adhesion --- n/a


Book
Nanoscale Self-Assembly: Nanopatterning and Metrology
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Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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The self-assembly process underlies a plethora of natural phenomena from the macro to the nano scale. Often, technological development has found great inspiration in the natural world, as evidenced by numerous fabrication techniques based on self-assembly (SA). One striking example is given by epitaxial growths, in which atoms represent the building blocks. In lithography, the use of self-assembling materials is considered an extremely promising patterning option to overcome the size scale limitations imposed by the conventional photolithographic methods. To this purpose, in the last two decades several supramolecular self-assembling materials have been investigated and successfully applied to create patterns at a nanometric scale. Although considerable progress has been made so far in the control of self-assembly processes applied to nanolithography, a number of unresolved problems related to the reproducibility and metrology of the self-assembled features are still open. Addressing these issues is mandatory in order to allow the widespread diffusion of SA materials for applications such as microelectronics, photonics, or biology. In this context, the aim of the present Special Issue is to gather original research papers and comprehensive reviews covering various aspects of the self-assembly processes applied to nanopatterning. Topics include the development of novel SA methods, the realization of nanometric structures and devices, and the improvement of their long-range order. Moreover, metrology issues related to the nanoscale characterization of self-assembled structures are addressed.


Book
Functional Polymers in Sensors and Actuators: Fabrication and Analysis
Authors: ---
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Recent advances in the fabrication techniques have enabled the production of different types of polymer sensors and actuators that can be utilized in a wide range of applications, such as soft robotics, biomedical, smart textiles and energy harvesting. Functional polymers possess dynamic physical and chemical properties, which make them suitable candidates for sensing and actuating tasks in response to external stimuli, such as radiation, temperature, chemical reaction, external force, magnetic and electric fields. This book focuses on the recent advancements in the modeling and analysis of functional polymer systems.

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