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Bottom-Up Fabrication of Atomically Precise Graphene Nanoribbons (Book chapter)

Authors: --- ---
Book Series: Advanced in Atom and Single Molecule Machines ISBN: 9783319758107 9783319758107 Year: Pages: 40 DOI: 10.1007/978-3-319-75810-7_6 Language: English
Publisher: Springer Grant: H2020 European Research Council - 635919
Subject: Environmental Technology
Added to DOAB on : 2018-07-18 11:01:02
License: Springer

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Graphene nanoribbons (GNRs) make up an extremely interesting class of&#xD;materials. On the one hand GNRs share many of the superlative properties of&#xD;graphene, while on the other hand they display an exceptional degree of tunability&#xD;of their optoelectronic properties. The presence or absence of correlated&#xD;low-dimensional magnetism, or of a widely tunable band gap, is determined by the&#xD;boundary conditions imposed by the width, crystallographic symmetry and edge&#xD;structure of the nanoribbons. In combination with additional controllable parameters&#xD;like the presence of heteroatoms, tailored strain, or the formation of&#xD;heterostructures, the possibilities to shape the electronic properties of GNRs&#xD;according to our needs are fantastic. However, to really benefit from that tunability&#xD;and harness the opportunities offered by GNRs, atomic precision is strictly required&#xD;in their synthesis. This can be achieved through an on-surface synthesis approach,&#xD;in which one lets appropriately designed precursor molecules to react in a selective&#xD;way that ends up forming GNRs. In this chapter we review the structure-property&#xD;relations inherent to GNRs, the synthesis approach and the ways in which the varied&#xD;properties of the resulting ribbons have been probed, finalizing with selected&#xD;examples of demonstrated GNR applications.

Fabrication and Analysis of Bio-Inspired Smart Surfaces

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Book Series: Schriften des Instituts für Mikrostrukturtechnik am Karlsruher Institut für Technologie / Hrsg.: Institut für Mikrostrukturtechnik ISSN: 18695183 ISBN: 9783731501633 Year: Volume: 22 Pages: XIV, 178 p. DOI: 10.5445/KSP/1000037907 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:02:01
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This work introduces novel techniques for the fabrication of bio-inspired hierarchical micro- and nanostructures. The enormous potential of these techniques is demonstrated by presenting a synthetic gecko-like adhesive matching the adhesion and self-cleaning of geckos very closely and a nanofur which is superhydrophobic, superoleophilic, underwater air-retaining, and even self-healing when surface treated.

Laser-Based Nano Fabrication and Nano Lithography

Authors: ---
ISBN: 9783038974109 9783038974116 Year: Pages: 154 DOI: 10.3390/books978-3-03897-411-6 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Chemical Engineering --- Chemistry (General)
Added to DOAB on : 2018-12-07 12:16:05
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The improvement of fabrication resolutions is an eternal challenge for miniaturizing and enhancing the integration degrees of devices. Laser processing is one of the most widely used techniques in manufacturing due to its high flexibility, high speed, and environmental friendliness. The fabrication resolution of laser processing is, however, limited by the diffraction limit. Recently, much effort has been made to overcome the diffraction limit in nano fabrication. Specifically, combinations of multiphoton absorption by ultrafast lasers and the threshold effect associated with a Gaussian beam profile provide fabrication resolutions far beyond the diffraction limit. The use of the optical near-field achieves nano ablation with feature sizes below 100 nm. Multiple pulse irradiation from the linearly polarized ultrafast laser produces periodic nanostructures with a spatial period much smaller than the wavelength. Unlimited diffraction resolutions can also be achieved with shaped laser beams. In the meanwhile, lasers are also widely used for the synthesis of nano materials including fullerenes and nano particles. In view of the rapid advancement of this field in recent years, this Special Issue aims to introduce the state-of-the-art in nano fabrication and nano lithography, based on laser technologies, by leading groups in the field.

Non-thermal Plasma Technology for the Improvement of Scaffolds for Tissue Engineering and Regenerative Medicine - A Review (Book chapter)

Book title: Plasma Science and Technology - Progress in Physical States and Chemical Reactions

Authors: --- --- --- --- et al.
ISBN: 9789535122807 Year: DOI: 10.5772/62007 Language: English
Publisher: IntechOpen Grant: FP7 Ideas: European Research Council - 279022
Subject: Science (General)
Added to DOAB on : 2019-01-17 11:48:00
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Non-thermal plasma technology is one of those techniques that suffer relatively little from diffusion limits, slow kinetics, and complex geometries compared to more traditional liquid-based chemical surface modification techniques. Combined with a lack of solvents, preservation of the bulk properties, and fast treatment times; it is a well-liked technique for the treatment of materials for biomedical applications. In this book chapter, a review will be given on what the scientific community determined to be essential to obtain appropriate scaffolds for tissue engineering and how plasma scientists have used non-thermal plasma technology to accomplish this. A distinction will be made depending on the scaffold fabrication technique, as each technique has its own set of specific problems that need to be tackled. Fabrication techniques will include traditional fabrication methods, rapid prototyping, and electrospinning. As for the different plasma techniques, both plasma activation and grafting/polymerization will be included in the review and linked to the in-vitro/in-vivo response to these treatments. The literature review itself is preceded by a more general overview on cell communication, giving useful insights on how surface modification strategies should be developed.

Glossaire technique trilingue de la pierre : L’exploitation en carrière

Authors: ---
ISBN: 9782351593011 DOI: 10.4000/books.ifpo.1040 Language: French
Publisher: Presses de l’Ifpo
Subject: Social Sciences
Added to DOAB on : 2019-12-06 13:15:32
License: OpenEdition Licence for Books

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De Pétra à Baalbek, en passant par Palmyre, la pierre est omniprésente au Proche-Orient. Presque tous les monuments de la région sont issus des carrières et la plupart de leurs caractères techniques sont étroitement dépendants des conditions géologiques et des techniques propres à ces exploitations. Comment imaginer l’usage de mégalithes à Baalbek si la roche locale n’avait présenté que des strates fragmentées et de faible épaisseur ? Si la production en série modulaire des blocs des fortifications hellénistiques de la côte méditerranéenne a été décidée, c’est grâce à la relative homogénéité des grès dunaires. L’absence de colonnes monolithes en gypse dans les sites de la vallée de l’Euphrate syrien ne tient pas à une décision architecturale, mais à l’impossibilité d’extraire de longs monolithes dans cette roche. La bichromie des monuments d’époque islamique se trouve essentiellement dans les zones géologiques où l’on peut extraire, à peu de distance, du calcaire clair et du basalte. Les pierres décoratives importées de diverses contrées présentent également des aspects spécifiques à leur type de gisement et à leur mode d’exploitation. Tel est le cas des colonnes de marbre cipolin dont l’esthétique finale est déjà déterminée, dès la carrière, par la manière d’isoler leur volume dans la masse rocheuse en anticipant la position de leurs veines vertes et grises. Par ailleurs, que sait-on sur les carriers antiques et médiévaux de la région ? Très peu de chose, si l’on en juge par l’extrême rareté des études historiques et archéologiques qui abordent ce thème. Les sources antiques et médiévales sont quasiment muettes à leur sujet. Les archéologues les assimilent souvent aux mineurs qui ne font que briser la roche pour en extraire le minerai sans intervenir sur la suite du processus de fabrication, alors que les carriers sont, au contraire, en interrelations étroites avec les chantiers de construction : ils exécutent les commandes après avoir défini pour les constructeurs, les possibilités techniques et esthétiques de la production de leur carrière. La rareté des informations sur les carrières de pierre tient d’abord au manque de sensibilisation des archéologues à leur sujet : peu connaissent la problématique archéologique des chantiers d’extraction et les résultats potentiels que peut apporter leur fouille stratigraphique. Les méthodes de fouille doivent être également adaptées aux carrières. Mais, dans la périphérie des zones urbaines, face à la transformation rapide des anciennes carrières en dépotoir, il est indispensable d’engager des prospections et des inventaires. Ces investigations doivent être accompagnées de descriptions précises des structures rocheuses encore visibles dans ces sites. Il existe pour cela un vocabulaire bien spécifique à ce domaine mais très mal connu, aussi bien en français qu’en arabe. L’objectif du présent ouvrage est de proposer un outil linguistique et technique illustré afin d’élargir les recherches dans cette discipline, où elles ne sont qu’embryonnaires. La technicité du sujet impliquait la présentation de nombreuses illustrations et une édition en format réduit pour faciliter l’usage de ce glossaire sur le terrain. Malgré tous nos efforts en vue de l’exhaustivité, il restera néanmoins quelques lacunes, dont nous prions les lecteurs de bien vouloir nous excuser.

Flexible and Stretchable Electronics

Authors: --- ---
ISBN: 9783038424369 9783038424376 Year: Pages: VIII, 172 DOI: 10.3390/books978-3-03842-437-6 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General)
Added to DOAB on : 2017-06-27 09:51:34
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Flexible and stretchable electronics are receiving tremendous attention as future electronics due to their flexibility and light weight, especially as applications in wearable electronics. Flexible electronics are usually fabricated on heat sensitive flexible substrates such as plastic, fabric or even paper, while stretchable electronics are usually fabricated from an elastomeric substrate to survive large deformation in their practical application. Therefore, successful fabrication of flexible electronics needs low temperature processable novel materials and a particular processing development because traditional materials and processes are not compatible with flexible/stretchable electronics. Huge technical challenges and opportunities surround these dramatic changes from the perspective of new material design and processing, new fabrication techniques, large deformation mechanics, new application development and so on. Here, we invited talented researchers to join us in this new vital field that holds the potential to reshape our future life, by contributing their words of wisdom from their particular perspective.

Optofluidics 2015

Authors: --- ---
ISBN: 9783038424697 9783038424680 Year: Pages: X, 162 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Added to DOAB on : 2017-07-13 16:23:40
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Optofluidics combines and integrates optics and fluidics to produce versatile systems that are achievable only with difficulty through either field alone. With the spatial and temporal control of the microfluids, the optical properties can be varied, providing highly flexible, tunable, and reconfigurable optical systems. Since the emergence of optofluidics, numerous systems with varied configurations have been developed and applied to imaging, light routing, bio-sensors, energy, and other fields. This Special Issue aims to collect high quality research papers, short communications, and review articles that focus on optofluidics, micro/nano technology, and related multidisciplinary emerging fields. The special issue will also publish selected papers from the 5th Optofluidics 2015 conference (http://www.optofluidics2015.org/), 26–28 July 2015, Taipei, Taiwan. The aim of optofluidics 2015 conference is to provide a forum to promote scientific exchange and to foster closer networks and collaborative ties between leading international optics and micro/nanofluidics researchers across various disciplines. The scope of Optofluidics 2015 is deliberately broad and interdisciplinary, encompassing the latest advances and the most innovative developments in micro/nanoscale science and technology. Topics range from fundamental research to its applications in chemistry, physics, biology, materials and medicine.

Hollow core optical fibers

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ISBN: 9783039210886 / 9783039210893 Year: Pages: 182 DOI: 10.3390/books978-3-03921-089-3 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-08-28 11:21:27
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The possibility of guiding light in air has fascinated optical scientists and engineers since the dawn of optical fiber technology. In the last few years, hollow core optical fibers have been attracting the attention of an expanding worldwide research community, furthering the design, fabrication and device implementation of specialty optical fibers. Hollow core optical fibers are entering almost any specific application field of optics from medicine to security; from telecommunication to industrial processing; from instrumentation to biology. In parallel to the increased number of applications, major advances are still being made on the optimization of hollow core fiber designs and on the study of its underlying guiding properties, as well as in the use of different materials and fabrication techniques, which, in turn, are providing even more ways of exploitation of this technology and new technical challenges. This Special Issue of Fibers rides the wave of this increasing interest in the field of hollow core optical fibers by providing an overview of the recent progress in this field as well as an updated and indicative sample of current research activities worldwide.

Electrochemically Engineering of Nanoporous Materials

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ISBN: 9783038972686 9783038972693 Year: Pages: 158 DOI: 10.3390/books978-3-03897-269-3 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Chemistry (General)
Added to DOAB on : 2018-10-10 11:46:51
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ca. 200 words; this text will present the book in all promotional forms (e.g. flyers). Please describe the book in straightforward and consumer-friendly terms.Electrochemical engineering of nanoporous materials is a cost-effective and facile synthesis approach that enables the production of a range of nanoscale materials with controllable dimensions and properties. Recent decades have witnessed extensive research activity into the advanced engineering of nanoporous materials, from fundamental studies to applied science. These nanomaterials offer a set of unique and exclusive advantages for a wealth of applications, including catalysis, energy storage and harvesting, electronics, photonics, sensing, templates, and membranes.This Special Issue is dedicated to recent research advances in electrochemical engineering of nanoporous materials and their application across several disciplines and research fields. The broad and interdisciplinary applicability of these nanomaterials will be of profound and immediate interest for a broad audience, ranging from physicists, chemists, engineers, materials scientists, bioengineers, and nanomedicine experts.

Tissue Engineering and Regenerative Nanomedicine

Authors: ---
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.]

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