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Layered double hydroxides. --- Chemistry. --- Chemistry, inorganic. --- Chemistry, Physical organic. --- Polymers. --- Inorganic Chemistry. --- Polymer Sciences. --- Physical Chemistry. --- Layered double hydroxides --- Hydroxides --- Anions --- Alkalies --- Inorganic Chemicals --- Chemicals and Drugs --- Ions --- Electrolytes --- Inorganic Chemistry --- Chemistry --- Physical Sciences & Mathematics --- Chemicals, Inorganic --- Alkalis --- Alkali --- Double hydroxides, Layered --- LDHs (Chemicals) --- Polymere --- Polymeride --- Polymers and polymerization --- Chemistry, Physical organic --- Inorganic chemistry --- Inorganic chemistry. --- Physical chemistry. --- Inorganic compounds --- Chemistry, Organic --- Chemistry, Physical and theoretical --- Macromolecules --- Polymers  . --- Chemistry, Theoretical --- Physical chemistry --- Theoretical chemistry

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Layered Double Hydroxides (LDHs) certainly do not represent a newcomer to the scientific community, yet they continue to attract a strong and general interest among a vast and multifaceted range of researchers. This persistent modernity is definitely due to some peculiar characteristics of these materials, which allow researchers and engineers to play with different aspects of two worlds: organic and inorganic, crystalline and molecular, solid and liquid, cationic and anionic. A virtually infinite number of possible chemical combinations takes advantage of their layered structure to express an unrivaled collection of remarkable properties. The capture and/or release of organic and inorganic species, versatile low-cost catalytic activity, and blending with other compounds to build up a variety of hybrid composites, are just some of the many effects investigated to date. As a result, the applications encompass almost all aspects of our life, ranging from renewable energy production to water purification, including biomedical applications, gas sensing, drug delivery, and food packaging and safety. This Special Issue highlights some of the recent research lines, and shows that remarkable progress has been and is still being made in all these aspects, to allow the consideration of LDHs as one of the most interesting and versatile inorganic materials.

Research & information: general --- layered double hydroxides --- reconstruction --- curcumin --- drug release --- wastewater --- heavy metals removal --- sol-gel processing --- alkaline earth metals --- mixed metal oxides --- reconstruction effect --- surface properties --- nanocomposites --- nanofillers --- thermal stability --- flammability --- polymer matrix --- HC --- hydrothermal synthesis --- layered double hydroxide --- AFm phase --- calcium hemicarboaluminate --- cement phases --- cement hydration --- C3AH6 --- C4ACH11 --- katoite --- microwave-assisted organic synthesis --- biofuel production --- rehydrated hydrotalcite --- heterogeneous basic catalysis --- green chemistry --- mechanochemistry --- bead mill --- synthesis --- wet grinding --- layered double hydroxides (LDHs) --- other nanoclays --- organically modified LDH --- water purification --- adsorption --- adsorption interaction --- diffusion --- layered double hydroxides --- reconstruction --- curcumin --- drug release --- wastewater --- heavy metals removal --- sol-gel processing --- alkaline earth metals --- mixed metal oxides --- reconstruction effect --- surface properties --- nanocomposites --- nanofillers --- thermal stability --- flammability --- polymer matrix --- HC --- hydrothermal synthesis --- layered double hydroxide --- AFm phase --- calcium hemicarboaluminate --- cement phases --- cement hydration --- C3AH6 --- C4ACH11 --- katoite --- microwave-assisted organic synthesis --- biofuel production --- rehydrated hydrotalcite --- heterogeneous basic catalysis --- green chemistry --- mechanochemistry --- bead mill --- synthesis --- wet grinding --- layered double hydroxides (LDHs) --- other nanoclays --- organically modified LDH --- water purification --- adsorption --- adsorption interaction --- diffusion

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Adequate quality of life and well-being of modern societies is only achievable with sustainable manufacturing processes that efficiently use raw materials, eliminate waste, and avoid the use of hazardous materials. All this is hardly conceivable without catalysis. In a world concerned with the exploitation of natural resources, catalysis can offer direct synthesis routes that maximize resource efficiency. The Iberoamerican society is far too significant and far too involved in global development, owing to its natural richness of resources, not to have an essential role in current developments and future directions. Catalysis, in the Iberoamerican academic and industrial communities, is recognized as a relevant scientific discipline that supports several strategic industrial sectors through the manufacturing of products and materials, and the operationalization of processes to produce energy and other utilities. As a reflection of this, once every two years the Iberoamerican Congress on Catalysis takes place to share and discuss the state-of-the-art of this discipline with the Federation of Iberoamerican Catalysis Societies. This book collected sixteen outstanding contributions, stemming from this exceptional event—one which will undoubtedly mark a turning point and could be a source of inspiration to all those involved in catalysis, particularly the young generation of competent researchers taking their first steps in this incredibly complex and beautiful discipline.

History of engineering & technology --- hydrodeoxygenation --- fast-pyrolysis bio-oil --- nickel catalyst --- upgrading --- peptide bond --- phthalonitriles --- phthalocyanines --- aminocarbonylation --- palladium catalysts --- castor oil --- biofuel --- selective transesterification --- ecodiesel --- biodiesel --- diesel engine --- electricity generator --- smoke opacity --- Bacharach opacity --- aldol condensation --- biomass valorization --- Mg/Al mixed oxides --- surfactant --- microwaves --- influence of water --- FAEEs --- mixed biocatalysts --- lipases --- microalgae --- silver nanoparticles --- zirconia --- hydrocarbons --- diesel soot --- catalytic combustion --- boronic esters --- borylation --- Suzuki-Miyaura --- layered double hydroxides --- copper --- palladium --- Fe/Nb2O5 immobilized catalyst --- emerging pollutants --- degradation --- hydrodesulfurization --- CoMo/Al2O3 --- basic additive --- lanthanum --- MCM-41 --- cerium --- benzyl alcohol --- oxidation --- benzaldehyde --- etherification --- glycerol --- tert-butyl alcohol --- dibutyl ether --- A-15 --- catalyst stability --- Cobalt ferrite --- ethylesters --- biofuels --- hydrotalcite --- transesterification --- fast pyrolysis --- SAPO-5 --- Al-MCM-41 --- dodecanoic acid --- photocatalysis --- Mg/Fe layered double hydroxides --- coprecipitation --- chlorophenols --- mixed oxides --- elimination --- phenol --- Al2O3-TiO2 --- CoMo --- CoMoS --- MoS2 --- desulfurization --- chemisorption --- MPI silica --- Ag nanoparticles --- XPS assessment --- hydrodeoxygenation --- fast-pyrolysis bio-oil --- nickel catalyst --- upgrading --- peptide bond --- phthalonitriles --- phthalocyanines --- aminocarbonylation --- palladium catalysts --- castor oil --- biofuel --- selective transesterification --- ecodiesel --- biodiesel --- diesel engine --- electricity generator --- smoke opacity --- Bacharach opacity --- aldol condensation --- biomass valorization --- Mg/Al mixed oxides --- surfactant --- microwaves --- influence of water --- FAEEs --- mixed biocatalysts --- lipases --- microalgae --- silver nanoparticles --- zirconia --- hydrocarbons --- diesel soot --- catalytic combustion --- boronic esters --- borylation --- Suzuki-Miyaura --- layered double hydroxides --- copper --- palladium --- Fe/Nb2O5 immobilized catalyst --- emerging pollutants --- degradation --- hydrodesulfurization --- CoMo/Al2O3 --- basic additive --- lanthanum --- MCM-41 --- cerium --- benzyl alcohol --- oxidation --- benzaldehyde --- etherification --- glycerol --- tert-butyl alcohol --- dibutyl ether --- A-15 --- catalyst stability --- Cobalt ferrite --- ethylesters --- biofuels --- hydrotalcite --- transesterification --- fast pyrolysis --- SAPO-5 --- Al-MCM-41 --- dodecanoic acid --- photocatalysis --- Mg/Fe layered double hydroxides --- coprecipitation --- chlorophenols --- mixed oxides --- elimination --- phenol --- Al2O3-TiO2 --- CoMo --- CoMoS --- MoS2 --- desulfurization --- chemisorption --- MPI silica --- Ag nanoparticles --- XPS assessment

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Very few materials have attracted so much attention in recent years, both from researchers and industry, as layered double hydroxides (LDHs) have. LDHs, which are also referred to as anionic clays or hydrotalcites, are a wide class of inorganic ionic lamellar clay materials consisting of alternately stacked positively charged metal hydroxide layers with intercalated charge-balancing anions in hydrated interlayer regions. Their unique properties, such as their extremely high versatility in chemical composition and intercalation ability, extraordinary tuneability in composition as well as morphology, good biocompatibility and high anion exchangeability, have triggered immense interdisciplinary interest for their use in many different fields of chemistry, biology, medicine, and physics. Indeed, the applications of LDHs are constantly growing: LDHs, in the form of aggregated lamellar clusters, exfoliated single-layer nanosheets, or hierarchical films of interconnected nanoplatelets, can be effectively used as nanoscale vehicles in drug delivery, heterogeneous catalysts and supports for molecular catalysts, ion exchangers and adsorbents, solid electrolytes or fillers in electrochemistry, for the fabrication of superhydrophobic surfaces, water treatment and purification, and the synthesis of functional thin films. This book gathers the contributions to the Special Issue “Layered Double Hydroxides” of Crystals, which includes two review articles and seven research papers.

Research & information: general --- layered double hydroxide --- memory effect --- rare earth --- europium --- 1,3,5-benzenetricarboxylic acid --- alginate beads --- green sorbent --- selective adsorption --- heavy metals --- tetracycline --- metal hydroxides --- layered double hydroxides --- removal --- water sample --- Bacillus subtilis --- surfactin --- quantitative analysis --- fermentation --- growth phase --- cellular biology --- catalysis --- DNA --- drug delivery --- hydrotalcite --- osteogenesis --- photocatalysis --- RNA. --- antimonate uptake --- mine water --- brandholzite --- zincalstibite --- iron precursor --- acidic residual solution --- LDH synthesis --- Mo(VI) adsorption --- resveratrol --- solid lipid nanoparticles --- endurance exercise --- mitochondrial nutrients --- mitochondrial quality control --- origin of life --- layer double hydroxide --- synthetic biology --- bioinspired devices --- biosensors --- bioanalysis --- layered double hydroxide --- memory effect --- rare earth --- europium --- 1,3,5-benzenetricarboxylic acid --- alginate beads --- green sorbent --- selective adsorption --- heavy metals --- tetracycline --- metal hydroxides --- layered double hydroxides --- removal --- water sample --- Bacillus subtilis --- surfactin --- quantitative analysis --- fermentation --- growth phase --- cellular biology --- catalysis --- DNA --- drug delivery --- hydrotalcite --- osteogenesis --- photocatalysis --- RNA. --- antimonate uptake --- mine water --- brandholzite --- zincalstibite --- iron precursor --- acidic residual solution --- LDH synthesis --- Mo(VI) adsorption --- resveratrol --- solid lipid nanoparticles --- endurance exercise --- mitochondrial nutrients --- mitochondrial quality control --- origin of life --- layer double hydroxide --- synthetic biology --- bioinspired devices --- biosensors --- bioanalysis

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This collection of research and review papers is aimed at depicting the state of the art on the possible correlations between processing variables, obtained structure and special properties which this structure induces on the plastic part. The extraordinary capacity of plastics to modify their properties according to a particular structure is evidenced for several transformation processes and for many applications. The final common goal is to take profit of this peculiar capacity of plastics by inducing, through a suitable processing, a specific spatial organization.

polymer blend --- carbon nanotube --- polycaprolactone --- X-ray diffraction --- reactive blending --- copper clad laminate --- incremental forming --- uniaxial compression --- fatigue --- nanoparticles --- composite --- deformation --- polymer composite --- humidity --- model --- uniaxial tensile deformation --- injection molding --- SPIF --- bioresorbable polymers --- flow --- poly(ethylene terephthalate) --- morphology --- 3D printing/additive manufacturing --- supercritical CO2 --- polymer morphology --- tissue engineering and regenerative medicine --- microfibrillar composites --- polyamide 6 --- ultra-high molecular weight polyethylene --- chain orientation --- processing --- intrinsic viscosity --- conductive polymer composites --- microcellular injection molding --- ionic liquids --- poly(?-caprolactone) --- biaxial elongation --- biobased films --- crystalline morphology --- gel --- composites --- PLLA --- bioresorbable vascular scaffolds --- temperature --- layered double hydroxides --- epoxy microstructure --- nanoreinforcement --- shear --- collagen --- controllable gas permeability --- contact angle --- WAXS --- mechanical performance --- biodegradable nanofibers --- in situ X-ray --- foam --- polyolefin --- carbon black --- polymorphism --- degradation --- polypropylene --- XRD --- graphite --- polyimide film --- indentation --- ultra-high molecular weight polyethylene (UHMWPE) --- mold temperature evolution --- fused filament fabrication/fused deposition modelling --- polyvinyl butyral --- supercritical fluid --- conductive filler --- octakis[(3-glycidoxypropyl)dimethylsiloxy]octasilsesquioxane (GPOSS) --- supercritical N2 --- compression molding --- flame retardant --- epinephrine --- crystallinity --- ethylene vinyl acetate --- atomic force microscopy --- temperature sensitive --- mechanical properties --- crystallisation --- microencapsulation --- linear coefficient of thermal expansion (CTE) --- structure and properties --- PLA --- isotactic polypropylene --- lidocaine --- graphene --- structural analysis --- critical gel --- Harmonix AFM --- physicochemical characterization --- polyurethane --- cavitation --- curing rate --- orientation --- breathable film --- stress-induced phase transitions --- phase transitions --- SAXS --- hydrophobicity --- melamine polyphosphate --- PLGA --- compatibilizer --- polyoxymethylene (POM) --- homogeneous dispersion --- stretch blow molding --- electrical conductivity --- poly(lactic acid)