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Food Packaging Based on Nanomaterials

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ISBN: 9783038975014 9783038975021 Year: Pages: 114 DOI: 10.3390/books978-3-03897-502-1 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Chemistry (General)
Added to DOAB on : 2019-01-07 11:41:52
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The use of nanotechnologies in the food-packaging area has opened up a number of possibilities derived from the inherent characteristics of nanoadditives, which can either improve relevant properties of neat polymers (such as barrier or mechanical properties) or introduce new functionalities (for active and bioactive packaging applications or even for sensing). This is an exciting and rapidly growing field of study, and very interesting developments are unfolding. Although the aim of these novel materials is to improve packaged food quality and safety, the toxicological effects derived from their potential migration from the polymer structures is also under consideration.This Special Issue compiles a review and five original papers describing novel nanocomposites with improved packaging properties, the use of nanotechnologies for smart packaging applications, and nanoparticle migration studies from novel nanocomposites.

Nanocelluloses: Synthesis, Modification and Applications

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ISBN: 9783039287840 / 9783039287857 Year: Pages: 142 DOI: 10.3390/books978-3-03928-785-7 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- Biotechnology
Added to DOAB on : 2020-06-09 16:38:57
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Nanocelluloses: Synthesis, Modification and Applications is a book that provides some recent enhancements of various types of nanocellulose, mainly bacterial nanocellulose, cellulose nanocrystals and nanofibrils, and their nanocomposites. Bioactive bacterial nanocellulose finds applications in biomedical applications, https://doi.org/10.3390/nano9101352. Grafting and cross-linking bacterial nanocellulose modification emerges as a good choice for improving the potential of bacterial nanocellulose in such biomedical applications as topical wound dressings and tissue-engineering scaffolds, https://doi.org/10.3390/nano9121668. On the other hand, bacterial nanocellulose can be used as paper additive for fluorescent paper, https://doi.org/10.3390/nano9091322, and for the reinforcement of paper made from recycled fibers, https://doi.org/10.3390/nano9010058. Nanocellulose membranes are used for up-to-date carbon capture applications, https://doi.org/10.3390/nano9060877. Nanocellulose has been applied as a novel component of membranes designed to address a large spectrum of filtration problems, https://doi.org/10.3390/nano9060867. Poly(vinyl alcohol) (PVA) and cellulose nanocrystals (CNC) in random composite mats prepared using the electrospinning method are widely characterized in a large range of physical chemical aspects, https://doi.org/10.3390/nano9050805. Similarly, physical chemical aspects are emphasized for carboxylated cellulose nanofibrils produced by ammonium persulfate oxidation combined with ultrasonic and mechanical treatment, https://doi.org/10.3390/nano8090640. It is extraordinary how nanocellulose can find application in such different fields. Along the same lines, the contributions in this book come from numerous different countries, confirming the great interest of the scientific community for nanocellulose.

Synthesis and Applications of Biopolymer Composites

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ISBN: 9783039211326 9783039211333 Year: Pages: 312 DOI: 10.3390/books978-3-03921-133-3 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- Chemical Engineering
Added to DOAB on : 2019-08-28 11:21:27
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This book, as a collection of 17 research articles, provides a selection of the most recent advances in the synthesis, characterization, and applications of environmentally friendly and biodegradable biopolymer composites and nanocomposites. Recently, the demand has been growing for a clean and pollution-free environment and an evident target regarding the minimization of fossil fuel usage. Therefore, much attention has been focused on research to replace petroleum-based commodity plastics by biodegradable materials arising from biological and renewable resources. Biopolymers—polymers produced from natural sources either chemically from a biological material or biosynthesized by living organisms—are suitable alternatives for addressing these issues due to their outstanding properties, including good barrier performance, biodegradation ability, and low weight. However, they generally possess poor mechanical properties, a short fatigue life, low chemical resistance, poor long-term durability, and limited processing capability. In order to overcome these deficiencies, biopolymers can be reinforced with fillers or nanofillers (with at least one of their dimensions in the nanometer range). Bionanocomposites are advantageous for a wide range of applications, such as in medicine, pharmaceutics, cosmetics, food packaging, agriculture, forestry, electronics, transport, construction, and many more.

Keywords

nanocellulose --- protease sensor --- human neutrophil elastase --- peptide-cellulose conformation --- aerogel --- glycol chitosan --- ?-tocopherol succinate --- amphiphilic polymer --- micelles --- paclitaxel --- chitosan --- PVA --- nanofibers --- electrospinning --- nanocellulose --- carbon nanotubes --- nanocomposite --- conductivity --- surfactant --- Poly(propylene carbonate) --- thermoplastic polyurethane --- compatibility --- toughness --- biopolyester --- compatibilizer --- cellulose --- elastomer --- toughening --- biodisintegration --- heat deflection temperature --- biopolymers composites --- MgO whiskers --- PLLA --- in vitro degradation --- natural rubber --- plasticized starch --- polyfunctional monomers --- physical and mechanical properties --- cross-link density --- water uptake --- chitosan --- deoxycholic acid --- folic acid --- amphiphilic polymer --- micelles --- paclitaxel --- silk fibroin --- glass transition --- DMA --- FTIR --- stress-strain --- active packaging materials --- alginate films --- antimicrobial agents --- antioxidant activity --- biodegradable films --- essential oils --- polycarbonate --- thermal decomposition kinetics --- TG/FTIR --- Py-GC/MS --- wheat gluten --- potato protein --- chemical pre-treatment --- structural profile --- tensile properties --- biocomposites --- natural fibers --- poly(3-hydroxybutyrate-3-hydroxyvalerate) --- biodegradation --- impact properties --- chitin nanofibrils --- poly(lactic acid) --- nanocomposites --- bio-based polymers --- natural fibers --- biomass --- biocomposites --- fiber/matrix adhesion --- bio-composites --- mechanical properties --- poly(lactic acid) --- cellulose fibers --- n/a

Plasma based Synthesis and Modification of Nanomaterials

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ISBN: 9783039213955 / 9783039213962 Year: Pages: 160 DOI: 10.3390/books978-3-03921-396-2 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology
Added to DOAB on : 2020-06-09 16:38:57
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This book, entitled “Plasma-Based Synthesis and Modification of Nanomaterials” is a collection of nine original research articles devoted to the application of different atmospheric pressure (APPs) and low-pressure (LPPs) plasmas for the synthesis or modification of various nanomaterials (NMs) of exceptional properties. These articles also show the structural and morphological characterization of the synthesized NMs and their further interesting and unique applications in different areas of science and technology. The readers interested in the capabilities of plasma-based treatments will quickly be convinced that APPs and LPPs enable one to efficiently synthesize or modify differentiated NMs using a minimal number of operations. Indeed, the presented procedures are eco-friendly and usually involve single-step processes, thus considerably lowering labor investment and costs. As a result, the production of new NMs and their functionalization is more straightforward and can be carried out on a much larger scale compared to other methods and procedures involving complex chemical treatments and processes. The size and morphology, as well as the structural and optical properties of the resulting NMs are tunable and tailorable. In addition to the desirable and reproducible physical dimensions, crystallinity, functionality, and spectral properties of the resultant NMs, the NMs fabricated and/or modified with the aid of APPs are commonly ready-to-use prior to their specific applications, without any initial pre-treatments.

Biomedical Applications of Nanoparticles

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ISBN: 9783039285426 / 9783039285433 Year: Pages: 366 DOI: 10.3390/books978-3-03928-543-3 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Medicine (General)
Added to DOAB on : 2020-06-09 16:38:57
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This book provides an overview of the design and physico-chemical properties of nanoparticles developed for biomedical applications such as targeting and detection of pathologies, nanovectorization of drugs, radiosensitization, metal detection, and nanocomposite implants. The considerations necessary when developing a new nanomedicine are also developed, including toxicological investigation, biodistribution, and efficacy. This book provides an accurate and current representation of the field by addressing the promises and hurdles of nanomedicine via 20 different pertinent studies. Covering a wide range of areas, this book is an excellent partner for physico-chemists, doctors, pharmacologists, and biochemists working on nanosciences dedicated to medicine, both in industry and in academia.

Keywords

curcumin --- mitoxantrone --- synergism --- PEG --- chitosan nanoparticles --- hybrid Fe-Si nanoparticles --- laser pyrolysis --- Caco2 cells --- cytotoxicity --- oxidative stress --- upconversion nanoparticles --- nanocarriers --- drug delivery --- gene delivery --- photolysis --- cancer imaging --- cytoreduction surgery --- fluorescent nanoparticle --- near-infrared --- short-wave infrared --- Candida glabrata --- extracellular --- mycosynthesis --- MIC --- MBC --- MFC --- membrane integrity --- TEM --- FTIR --- surface-enhanced Raman spectroscopy (SERS) --- Ag-film --- Hg2+ ions detection --- SERS sensor --- nanocomposites --- medical devices --- middle ear prosthesis --- silver nanoparticles --- biocompatibility --- thermoplastic polymer --- dihydroartemisinin --- liposomes --- autophagy --- apoptosis --- breast cancer --- surface-enhanced Raman scattering (SERS) --- metal-enhanced fluorescence (MEF) --- dual functional imaging nanoprobe --- UiO-66 --- nanoparticles --- glioblastoma --- biocompatibility --- drug delivery --- alginate --- chitosan --- layer-by-layer --- magnetic nanoparticles --- drug delivery --- cancer --- curcumin --- lignin --- nanoparticle --- protein --- nanocellulose --- fibril --- enzyme --- heat --- self-assembly --- cross-link --- antibiotics --- nanoparticles --- biogenic nanoparticles --- antimicrobial --- antibiotic resistance --- multidrug resistant (MDR) microorganisms --- plasma --- nanomaterials --- nanomaterial synthesis --- plasma liquid Interactions --- non-thermal plasma --- biomedical applications --- core-shell nanoparticles --- biocompatible --- drug delivery --- anticancer --- SERS --- histamine --- nanostars --- nanophotonics --- computational electromagnetism --- surface enhanced Raman scattering --- SERS --- finite element method --- density functional theory calculations --- cell labeling --- cancer --- iron oxide superparamagnetic nanoparticles --- trans-resveratrol derivative --- drug delivery --- glioma --- gold nanoparticles --- radiosensitization --- thioredoxin reductase --- radiation --- prognosis --- biochemical mechanism --- nanodiamond --- targeted nanoparticles --- in vivo application --- cancer cell targeting --- antimiR --- nano-bio interaction

Bio-Based Polymers for Engineered Green Materials

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ISBN: 9783039289257 / 9783039289264 Year: Pages: 568 DOI: 10.3390/books978-3-03928-926-4 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2020-06-09 16:38:57
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With daily signals, Nature is communicating us that its unconscious wicked exploitation is no more sustainable. Our socio-economic system focuses on production increasing without considering the consequences. We are intoxicating ourselves on a daily bases just to allow the system to perpetuate itself. The time to switch into more natural solutions is come and the scientific community is ready to offer more natural product with comparable performance then the market products we are used to deal with. This book collects a broad set of scientific examples in which research groups from all over the world, aim to replace fossil fuel-based solutions with biomass derived materials. In here, some of the most innovative developments in the field of bio-materials are reported considering topics which goes from biomass valorization to the synthesis of high preforming bio-based materials.

Keywords

thermoplastic starch --- corn starch --- chitosan --- crosslinked microparticles --- lignin-containing cellulose nanofibrils --- poly(lactic acid) and composite films --- lignin content --- compatibility --- adsorption --- phenanthrene --- pyrene --- benzoyl cellulose --- stearoyl cellulose --- silkworm cocoons --- dense structure --- porosity --- robust fiber network --- mechanical properties --- photodegradation --- liquid natural rubber --- UV light --- TiO2 anatase --- latex state --- wood modification --- alkali lignin --- water resistance --- dimensional stability --- heat treatment --- polymeric composites --- antifouling --- metal binding --- iron chelation --- polydopamine coating --- free-radical polymerization --- galactoglucomannan --- lignin --- lignin-carbohydrate complex --- ultrafiltration --- precipitation --- hydrogel --- recycling --- thermal degradation --- mechanical degradation --- polylactic acid --- Bioflex --- Solanyl --- PHBV --- poly(lactic acid) --- pulp fibers --- biocomposite --- emulsion-solvent evaporation method --- films --- mechanical properties --- PHA --- mixed microbial cultures --- bioplastics --- feast-famine --- cost --- Peptone --- Microbial nutrient --- Anti-bacterial silver nanoparticle --- Escherichia coli --- Staphylococcus aureus --- tannin --- hemicellulose --- waste biomass --- HSQC-NMR --- pyrolysis mechanism --- hydrotropic treatment --- metal chloride --- delignification --- enzymatic saccharification --- lignocellulosic nanofibrils --- microencapsulated phase change material (MPCM) --- polylactic acid (PLA) --- toughening --- endothermic effect --- kenaf fiber --- hybrid composites --- bio-based --- film --- mechanical properties --- polysaccharides --- resource recovery --- solution casting --- orange waste --- nanocelluloses --- cellulose nanofibers --- cellulose nanocrystals --- bacterial cellulose --- cement --- fiber-cement --- Hatscheck process --- bio-inspired interfaces --- mechanical properties --- thermal stability --- sensitivity --- electrospinning --- tissue engineering --- paper-based scaffolds --- osteoblast proliferation --- polycaprolactone --- biopolymers --- nanoclays --- nanobiocomposites --- extrusion-compounding --- polyhydroxyalkanoates --- thermal properties --- mechanical properties --- differential scanning calorimetry --- nuclear magnetic resonance --- X-ray diffraction --- transparent wood --- chemical composition --- H2O2 bleaching treatment --- physicochemical properties --- cellulose --- electrical resistance --- copper coating --- electroless deposition --- humidity sensor --- strain sensor --- lyocell fiber --- asphalt rubber --- bio-asphalt --- mixing sequence --- workability --- storage stability --- tung oil --- unsaturated polyester resins --- thermosetting polymers --- structure–property relationship --- structural plastics --- ONP fibers --- silanization --- composites --- mechanical properties --- Artemisia vulgaris --- microcellulose fiber --- nanocellulose fibers --- natural fibers --- Bio-based foams --- wastewater treatments --- cationic dyes --- anionic surfactants --- pollutant adsorbents --- tannin polymer --- tannin-furanic foam --- biopolymers --- nanoclays --- bio-nanocomposites --- extrusion-compounding --- polyhydroxyalkanoates --- thermal properties --- microstructure --- volatiles --- autoxidation --- thermal gravimetric analysis --- scanning electron microscope --- headspace solid phase microextraction --- alginate sponge --- two-step lyophilization --- methylene blue --- adsorption capacity --- biomass resources --- hybrid nonisocyanate polyurethane --- solvent- and catalyst-free --- dimer acid --- melt condensation --- bacterial cellulose --- surface modification --- TEMPO oxidation --- one-pot synthesis --- immobilized TEMPO --- physical property --- skincare --- cellulose --- graphene oxide --- ionic liquid --- membrane --- transport properties --- heavy metals --- porous structure --- SAXS --- WAXS --- cellulose --- wood --- lignocellulose --- ionic liquid --- imidazolium --- fractionation --- dissolution --- GC-MS --- kaempferol --- knotwood --- larixol --- taxifolin --- vibrational spectroscopy --- n/a

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