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Boron Nitride Nanostructures

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ISBN: 9783038974895 / 9783038974901 Year: Pages: 104 DOI: 10.3390/books978-3-03897-490-1 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Chemistry (General)
Added to DOAB on : 2019-01-08 10:31:36
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The research topic of this Special Issue will consider (i) the design of nanostructured boron nitride nanostructures with controlled crystal structures, porosity, and dimensionality, (ii) the functionalization of boron nitride, and (iii) prospective applications of boron nitride nanostructures and materials. It contains six papers dealing with (i) the exfoliation of hexagonal Boron Nitride (h-BN) in liquid phase by ion intercalation, (ii) effective mechanical properties and thickness determinations of Boron Nitride nanosheets using molecular dynamics simulation, (iii) direct observation of inner-layer inward contractions of multiwalled Boron Nitride nanotubes upon in situ heating, (iv) the alignment of Boron Nitride nanofibers in epoxy composite films for thermal conductivity and dielectric breakdown strength improvement, (v) the effect of Boron Nitride on the thermal and mechanical properties of poly(3-hydroxybutyrate-co-3-hydroxyvalerate), and (vi) hexagonal Boron Nitride functionalized with Au nanoparticles—properties and potential biological applications.

On the diverse bonding situations in nanostructures : an ab initio computational study

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ISBN: 9783866444508 Year: Pages: VIII, 131 p. DOI: 10.5445/KSP/1000013975 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Chemistry (General)
Added to DOAB on : 2019-07-30 20:01:58
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This computational study investigates diverse bonding situations in nanostructures (carbon nanotubes, fullerenes, metal compounds) spanning a broad range of energies. Weak, dispersive interactions and covalent metal-ligand and metal-metal bonding are examined. The results of efficient density functional calculations are compared to those of correlated wavefunction calculations on model systems. This rigorous validation is crucial in evaluating the balance between computational cost and accuracy.

STM Characterization of Phenylene-Ethynylene Oligomers on Au(111) and their Integration into Carbon Nanotube Nanogaps

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Book Series: Experimental Condensed Matter Physics / Karlsruher Institut für Technologie, Physikalisches Institut ISSN: 21919925 ISBN: 9783731502357 Year: Volume: 12 Pages: 125 p. DOI: 10.5445/KSP/1000041811 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Physics (General)
Added to DOAB on : 2019-07-30 20:01:58
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Molecular electronics requires both profound knowledge of a molecule's structure and functionality on a surface and controlled positioning between electrodes with nanometer-sized gaps. In the first part of this work, a detailed scanning tunneling microscope study of two variants of oligo(phenylene ethynylene) molecules is presented. In the second part, methods of fabricating carbon nanotube nanogap electrodes as direct contacts to these molecules are explored.

Multi-Walled Carbon Nanotubes

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ISBN: 9783039212293 / 9783039212309 Year: Pages: 184 DOI: 10.3390/books978-3-03921-230-9 Language: eng
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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Since their discovery, multi-walled carbon nanotubes (MWCNTs) have received tremendous attention due to their unique electrical, optical, physical, chemical, and mechanical properties. Remarkable advances have been made in the synthesis, purification, structural characterization, functionalization, and application of MWCNTs. Their particular characteristics make them well suited for a plethora of applications in a number of fields, namely nanoelectronics, nanofluids, energy management, (electro)catalysis, materials science, construction of (bio)sensors based on different detection schemes, multifunctional nanoprobes for biomedical imaging, and sorbents for sample preparation or removal of contaminants from wastewater. They are also useful as anti-bacterial agents, drug delivery nanocarriers, etc. The current relevant application areas are countless. This Special Issue presents original research and review articles that address advances, trends, challenges, and future perspectives regarding synthetic routes, structural features, properties, behaviors, and industrial or scientific applications of MWCNTs in established and emerging areas.

Keywords

water based nanofluid --- carbon-nanotubes --- boundary layer --- heat generation --- thermal radiation --- curved stretching sheet --- numerical solution --- Single-Walled Carbon Nanotube (SWCNT) --- Multi-Walled Carbon Nanotube (MWCNT) --- MHD --- Casson model --- stretching sheet --- non-linear thermal radiation --- HAM --- zeolitic imidazolate framework --- multi-walled carbon nanotubes --- magnetic solid phase extraction --- organochlorine pesticides --- agricultural irrigation water --- Pd-CNT nanohybrids --- functionalized CNTs --- polarity --- semi-homogeneous catalysis --- heck reaction --- nanomaterials --- multi-walled carbon nanotubes --- synthesis methods --- electrochemical properties --- electrochemical sensors --- electroanalysis --- sensing applications --- multiwalled carbon nanotubes --- gold(I) --- gold(III) --- adsorption --- elution --- gold nanoparticles --- adsorption --- multi-walled carbon nanotubes --- nonylphenol --- kinetics --- multi-walled carbon nanotubes --- graphene oxide --- cerium oxide --- lubricating oil additives --- multi-wall carbon nanotube (MWCNT) --- azide-alkyne click chemistry --- RAFT polymerization --- PMMA --- carbon nanotubes --- composites --- radar absorbing materials --- complex permittivity --- chloride diffusion --- cement mortars --- carbon nanotubes --- mechanical properties --- electrical properties --- hydrophobic drugs --- drug delivery --- functionalized carbon nanotubes --- dissolution rate --- nanomedicine --- polymeric composites --- silicone rubber --- Ionic liquid --- carbon materials --- structural --- EMI shielding --- n/a

Nanomaterials in Liquid Crystals

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ISBN: 9783038971153 9783038971160 Year: Pages: 160 DOI: 10.3390/books978-3-03897-116-0 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Physics (General) --- Chemistry (General)
Added to DOAB on : 2018-09-25 11:14:33
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The dispersion of nanomaterials in liquid crystals, both of the thermotropic and the lyotropic kind, has attracted much interest over recent years. This is in part related to the success of liquid crystals in several applications, in particular flat screen displays, besides others. The dispersion of nanoparticles allows the fine-tuning of liquid crystalline properties and the addition of functionalities associated with the properties of the nanoparticles. These include the addition of ferroelectricity, magnetic properties, optic and plasmonic properties, for example through quantum dots and gold nanoparticles, but also directed conductivity, by exploiting the respective conductivity anisotropy of nanotubes. In addition, such behaviors can be achieved through transfer and templating of the self-organization of the liquid crystalline order onto dispersed anisotropic nanoparticles, allowing the formation of ordered nanostructures. Furthermore, the formation of partially ordered fluids can be induced by dispersing shape anisotropic nanoparticles in an isotropic solvent. Such lyotropic systems have recently experienced a revived interest. This genuinely multidisciplinary field of research has led to a wealth of novel systems in soft condensed matter and promises new applications in the areas of displays, optical elements, meta-materials, sensors, drug delivery, and many more. Various examples are presented in this publication.

Polymer Clay Nano-composites

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ISBN: 9783039216529 / 9783039216536 Year: Pages: 246 DOI: 10.3390/books978-3-03921-653-6 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology
Added to DOAB on : 2019-12-09 11:49:16
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This Special Issue focuses on the current state-of-the-art of “Polymer Clay Nano-Composites” for biomedical, anticorrosion, antibacterial, and other applications. Clay–polymer composite nanomaterials represent an emerging area of research. Loading polymers with clay particles essentially enhances the composite strength features. Of particular interest are different nano-assembly methods, such as silane mono and multilayers, polyelectrolyte layer-by-layer assembly, and others. An important development was reached for tubular and fibrous clay nanoparticles, such as halloysite, sepiolite, and imogolite. Polymer clay nanoparticles can be prepared as sheets with 1-nm thickness and width of a few hundred nm (e.g., kaolin and montmorillonite). Fibrous clays significantly reinforce the nano-composites in the assembly with biopolymers and other green polymers, leading to functional hybrid bio nano-composites. The scope of this Special Issue comprehensively includes the synthesis and characterization of polymer clay nano-composites used for several applications, including nano-clay polymer composites and hybrid nano-assemblies.

Keywords

polyimide --- graphene oxide --- composite --- mechanical properties --- indentation recovery --- AFM --- carbon fibers --- surface grafting --- halloysite nanotubes --- polymer composites --- interface --- fish gelatin --- halloysite nanotubes --- glycerol --- mechanical properties --- water resistance --- LAP --- hyaluronic acid --- doxorubicin --- CD44 receptor targeted --- sacrificial bond --- ionic network --- organic montmorillonite --- 1,2-polybutadiene --- in-situ intercalation --- clay–polymer nanocomposites --- atrazine --- radical polymerization --- hexadecyltrimethylammonium bromide --- phenyltrimethylammonium chloride --- FTIR --- TGA --- adsorption --- dental resins --- nanocomposite materials --- organically modified clays --- montmorillonite --- intercalation --- nanotechnology --- ammonium persulfate --- fuzzy optimization --- N,N?-methylenebisacrylamide --- Pareto set --- polyacrylic acid --- swelling capacity --- variable cost --- polyethylene oxide --- montmorillonite clays --- Pd catalysis --- catalytic composite --- positron annihilation --- doubly functionalized montmorillonite --- polystyrene --- soap-free emulsion polymerization --- thermal stability --- tribological property --- organo-clays --- polyamines --- clay-amine interaction mechanisms --- structure effects --- la uptake and release --- layered silicate --- sericite --- CTAB --- intercalation stability --- nanocomposites --- gelation kinetics --- sol–gel transition --- water shutoff --- silica sol --- cellulose nanofibrils --- halloysite nanotubes --- supercritical CO2 --- polystyrene foam --- blowing agent --- in situ polymerization --- attapulgite/polypyrrole nanocomposite --- halloysite nanotubes --- polysaccharide --- interfacial interactions --- reinforcing --- adsorption --- dispersion --- coatings --- whey protein isolate --- nanocomposites --- nanoclay, barrier --- morphology --- n/a

Tissue Engineering and Regenerative Nanomedicine

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ISBN: 9783039216567 / 9783039216574 Year: Pages: 126 DOI: 10.3390/books978-3-03921-657-4 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-12-09 11:49:16
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[This book focus on the most recent advances related to the design and processing methods of different nanobiomaterials, films, and fibers; surface functionalization strategies, including biological performance assessment and cytocompatibility; and their applications in tissue engineering strategies.]

Carbonates

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ISBN: 9783038977223 Year: Pages: 146 DOI: 10.3390/books978-3-03897-723-0 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Physics (General) --- Science (General)
Added to DOAB on : 2019-04-05 10:34:31
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This Special Issue is aimed at presenting the state of the art of the multidisciplinary science concerning all aspects of volcanic plumes, of relevance to the volcanology, climatology, atmospheric science, and remote sensing communities.

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: eng
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.

Food Packaging. Materials and Technologies

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ISBN: 9783038977667 9783038977674 Year: Pages: 216 DOI: 10.3390/books978-3-03897-767-4 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering --- Materials
Added to DOAB on : 2019-04-25 16:37:17
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Because of the increasing pressure on both food safety and packaging/food waste, the topic is important both for academics, applied research, industry and also for environment protection. Different materials, such as glass, metals, paper and paperboards, and non-degradable and degradable polymers, with versatile properties, are attractive for potential uses in food packaging. Food packaging is the largest area of application within the food sector. Only the nanotechnology-enabled products in the food sector account for ~50% of the market value, with and the annual growth rate is 11.65%. Technological developments are also of great interest. In the food sector, nanotechnology is involved in packaging materials with extremely high gas barriers, antimicrobial properties, and also in nanoencapsulants for the delivery of nutrients, flavors, or aromas, antimicrobial, and antioxidant compounds. Applications of materials, including nanomaterials in packaging and food safety, are in forms of: edible films, polymer nanocomposites, as high barrier packaging materials, nanocoatings, surface biocides, silver nanoparticles as potent antimicrobial agents, nutrition and neutraceuticals, active/bioactive packaging, intelligent packaging, nanosensors and nanomaterial-based assays for the detection of food relevant analytes (gasses, small organic molecules and food-borne pathogens) and bioplastics.

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