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Solid Catalysts for the Upgrading of Renewable Sources

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ISBN: 9783038975724 Year: Pages: 226 DOI: 10.3390/books978-3-03897-573-1 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Chemistry (General) --- Science (General)
Added to DOAB on : 2019-04-05 11:07:22
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The use of solid catalysts for the upgrade of renewable sources gives the opportunity to combine the two main cores of green chemistry, that is, on the one hand, the set-up of sustainable processes and, on the other, the use of biomass-derived materials. Solid catalysts have taken on a leading role in traditional petrochemical processes and could represent a key tool in new biorefinery-driven technologies.

Siloxane-Based Polymers

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ISBN: 9783038971252 9783038971269 Year: Pages: 188 DOI: 10.3390/books978-3-03897-126-9 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, a collection of 12 original contributions and 4 reviews, provides a selection of the most recent advances in the preparation, characterization, and applications of polymeric nanocomposites comprising nanoparticles. The concept of nanoparticle-reinforced polymers came about three decades ago, following the outstanding discovery of fullerenes and carbon nanotubes. One of the main ideas behind this approach is to improve the matrix mechanical performance. The nanoparticles exhibit higher specific surface area, surface energy, and density compared to microparticles and, hence, lower nanofiller concentrations are needed to attain properties comparable to, or even better than, those obtained by conventional microfiller loadings, which facilitates processing and minimizes the increase in composite weight. The addition of nanoparticles into different polymer matrices opens up an important research area in the field of composite materials. Moreover, many different types of inorganic nanoparticles, such as quantum dots, metal oxides, and ceramic and metallic nanoparticles, have been incorporated into polymers for their application in a wide range of fields, ranging from medicine to photovoltaics, packaging, and structural applications.

Keywords

fabrication --- multielectrode array (MEA) --- PDMS --- PDMS etching --- plateau-shaped electrode --- recessed electrode --- spinal cord signal recording --- underexposure --- organosilane --- quartz microcrystal --- encapsulant --- refractive index --- thermal conductivity --- poly(dimethylsiloxanes) --- surface modification --- nanosilica --- diethyl carbonate --- carbon content --- morphology --- coatings --- fillers --- hybrid hydrogel --- MAPOSS --- mechanical properties --- swelling --- drug release --- dental resin --- methacryl POSS --- shrinkage --- hardness --- scratch resistance --- ceramizable silicone rubber --- borate --- halloysite --- composite --- ceramizable mechanism --- polysiloxanes --- mortar --- basalt fibre --- roughness --- surface free energy --- poly(ethylene glycol) (PEG) --- hydrophilic --- non-releasable --- polydimethylsiloxane --- coatings --- cross-linking --- surface --- amphiphilic --- anti-bioadhesion --- hyperbranched poly(methylhydrosiloxanes) --- hydrolytic polycondensation --- 29Si-NMR --- topology of polysiloxane chains --- polyhedral oligomeric silsesquioxanes --- high molecular weight --- nanoparticles --- PDMS --- sugar templating process --- 3D porous network --- thermal stability --- TG-FTIR --- X-ray (Micro-CT) microtomography --- sol-gel --- hybrids --- chlorogenic acid --- bioactivity --- FTIR --- TG --- polysiloxanes --- theranostics --- drug delivery --- nanomedicine --- PDMS --- silicon --- ultraviolet (UV) curable coatings --- low surface energy materials --- fluorinated siloxane resin

Refrigeration Systems and Applications 2019

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ISBN: 9783039219520 9783039219537 Year: Pages: 200 DOI: 10.3390/books978-3-03921-953-7 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2020-01-07 09:08:26
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The Special Issue “Refrigeration Systems and Applications” aims to encourage researchers to address the concerns associated with climate change and the sustainability of artificial cold production systems, and to further the transition to the more sustainable technologies and methodologies of tomorrow through theoretical, experimental, and review research on the different applications of refrigeration and associated topics.

Recent Advances in Biocatalysis and Metabolic Engineering for Biomanufacturing

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ISBN: 9783039215744 9783039215751 Year: Pages: 278 DOI: 10.3390/books978-3-03921-575-1 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- Biotechnology
Added to DOAB on : 2019-12-09 11:49:15
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The use of biocatalysts, including enzymes and metabolically engineered cells, has attracted a great deal of attention in the chemical and bio-industry, because biocatalytic reactions can be conducted under environmentally-benign conditions and in more sustainable ways. The catalytic efficiency and chemo-, regio-, and stereo-selectivity of enzymes can be enhanced and modulated using protein engineering. Metabolic engineering seeks to enhance cellular biosynthetic productivity of target metabolites via controlling and redesigning metabolic pathways using multi-omics analysis, genome-scale modeling, metabolic flux control, and reconstruction of novel pathways. The aim of this book is to cover the recent advances in biocatalysis and metabolic engineering for biomanufacturing of biofuels, chemicals, biomaterials, and pharmaceuticals. Reviews and original research articles on the development of new strategies to improve the catalytic efficiency of enzymes, biosynthetic capability of cell factories, and their applications in production of various bioproducts and chemicals are included.

Keywords

artificial self-sufficient P450 --- bioplastics --- dodecanoic acid --- Nylon 12 --- ?-aminododecanoic acid --- immobilization --- fluorescein diacetate --- polyurethane foam --- biofilm --- total enzymatic activity --- biocatalysis --- Combi-CLEAs --- cascade reactions --- immobilization --- Myceliophthora --- glyoxal oxidase --- 5-hydroxymethylfurfural --- aerobic methane bioconversion --- bioreactor --- string film reactor --- mass transfer performance --- cross-linked enzyme aggregate --- amyloglucosidase --- magnetic nanoparticles --- bovine serum albumin --- polyethyleneimine --- starch hydrolysis --- Eversa --- interfacial activation --- lipase immobilization --- enzyme stabilization --- enzyme modulation --- metabolic engineering --- synthetic biology --- 3-hydroxypropionic acid --- microbial production --- fatty acid synthesis --- acetate --- redox enzymes --- FTIR spectroscopy --- small molecules --- Corynebacterium glutamicum --- Pvgb --- tunable expression system --- expression vectors --- synthetic biology --- Vitreoscilla --- vgb --- biocatalysts --- biocatalytic reaction --- Methylosinus sporium strain 5 --- soluble methane monooxygenase --- C–H activation --- O2 activation --- synthetic biology --- metabolic engineering --- microbial cell factory --- synthetic metabolic pathways --- mannose --- magnetic nanoparticles --- immobilization --- whole cell --- specific recognition --- 12-hydroxydodecanoic acid --- dodecanoic acid --- CYP153A --- whole-cell biotransformation --- Candida antarctica Lipase B --- transesterification --- polymer functionalization --- tetraethylene glycol --- poly(ethylene glycol) --- hydrogenase --- bio-hydrogen --- chemicals addition --- review --- (?)-?-bisabolol --- mevalonate (MVA) --- mevalonate kinase 1 --- Methanosarcina mazei --- fed-batch fermentation --- monoterpene --- prokaryotic microbial factory --- metabolic engineering --- MEP pathway --- MEV pathway --- n/a

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MDPI - Multidisciplinary Digital Publishing Institute (4)


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CC by-nc-nd (4)


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english (4)


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2019 (4)