Download or read book Surface Characterization of Organic and Bioinspired Nanoscale Devices written by Kuo-Yao Lin and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: For the past few decades, the research and industrial application of organic semiconducting materials has been very active. Compared to traditional semiconducting materials, facile chemical modification and processing are advantageous properties of organic electronics. This dissertation focuses on two classes of organic semiconducting devices: light-emitting electrochemical cells (LEECs) and bioinspired nanowires. Organic light-emitting diodes (OLEDs) have emerged in display applications, but not lighting due to high fabrication costs. To achieve high OLED performance at low cost, efforts have focused on light-emitting electrochemical cells (LEECs). LEECs, and particularly iridium LEECs, exhibit substantial efficiency, high luminance, and long lifetime in a simple, solution processable device architecture. Performance is facilitated by the redistribution of ions that assists charge injection. However, the physics of iridium LEECs has not been fully explored, particularly brightness enhancement with lithium additives. Scanning Kelvin Probe Microscopy (SKPM) was used to reveal the surface potential profile of iridium LEEC devices and clarify the effect of lithium addition. We found that ions do not pack densely at the cathode in pristine iridium LEECs devices. Li[PF6] addition produced a doubling of the peak electric field at the cathode from an increase of ionic space charge. This work was the first to clarify the nature of iridium device performance and enhancement from lithium salt additives: the additional mobile cations improves space charge accumulation for improved electron injection. The second class of devices concerns nanowires, specifically, the DNA-inspired self-assembly of nanoscale electronic devices. There is a need to fabricate nanoscale electronics with high yield and high purity. We created devices based on 20 nm long DNA nanowires incorporating a perylene-3,4,9,10-tetracarboxylic diimide (PTCDI) derivative, an organic semiconductor with dimensions similar to two DNA bases. We synthesized these nanowires by automated DNA phosphoramidite chemistry and purified these wires by high performance liquid chromatography, thus achieving high control and purity of a nanoscale electronic element. We patterned gold nanogap electrodes and assembled the nanowires by gold-thiol self-assembly. Current voltage characterization revealed that the current of perylene nanowires was enhanced 4.4 fold over conventional DNA nanowires. Temperature dependence revealed that the current increased from room temperature up to 35 °C for each type of wire, and then lowered rapidly, consistent with DNA melting. We performed atomic force microscopy imaging studies to observe an instance of a single nanowire spanning a nanogap. This research provides a new approach to fabricate nanoscale devices with lower cost and high yield. Chapter 1 will serve as an introduction to organic semiconductor fundamentals and applications. Chapter 2 will discuss the state-of-the-art lithographic fabrication methods and the progress of molecular electronics, including research with DNA nanowires. Chapter 3 describes our research in performing surface characterization of iridium light-emitting electrochemical cells and the effect of lithium additives. Finally, the construction of bioinspired nanowire devices with the organic semiconductor perylene and associated electronic, thermal, and surface characterization is reported in Chapter 4.

Download or read book Bio Inspired and Nanoscale Integrated Computing written by Mary Mehrnoosh Eshaghian-Wilner and published by John Wiley & Sons. This book was released on 2009-06-22 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: Brings the latest advances in nanotechnology and biology to computing This pioneering book demonstrates how nanotechnology can create even faster, denser computing architectures and algorithms. Furthermore, it draws from the latest advances in biology with a focus on bio-inspired computing at the nanoscale, bringing to light several new and innovative applications such as nanoscale implantable biomedical devices and neural networks. Bio-Inspired and Nanoscale Integrated Computing features an expert team of interdisciplinary authors who offer readers the benefit of their own breakthroughs in integrated computing as well as a thorough investigation and analyses of the literature. Carefully edited, the book begins with an introductory chapter providing a general overview of the field. It ends with a chapter setting forth the common themes that tie the chapters together as well as a forecast of emerging avenues of research. Among the important topics addressed in the book are modeling of nano devices, quantum computing, quantum dot cellular automata, dielectrophoretic reconfigurable nano architectures, multilevel and three-dimensional nanomagnetic recording, spin-wave architectures and algorithms, fault-tolerant nanocomputing, molecular computing, self-assembly of supramolecular nanostructures, DNA nanotechnology and computing, nanoscale DNA sequence matching, medical nanorobotics, heterogeneous nanostructures for biomedical diagnostics, biomimetic cortical nanocircuits, bio-applications of carbon nanotubes, and nanoscale image processing. Readers in electrical engineering, computer science, and computational biology will gain new insights into how bio-inspired and nanoscale devices can be used to design the next generation of enhanced integrated circuits.

Download or read book Bioinspired Functional Nanoscale Materials written by In-Kook Jun and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Inorganic-organic nanocomposites were realized by assembling synthesized gibbsite nanoplatelets using the electrophoretic deposition and infiltration of a monomer followed by polymerization. Via surface modifications of gibbsite nanoplatelets, nanocomposites were further reinforced with covalent linkages between the inorganic platelets and organic matrix.

Download or read book Bio Inspired Nanotechnology written by Marc R. Knecht and published by Springer Science & Business Media. This book was released on 2014-04-12 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the use of bio-inspired and biomimetic methods for the fabrication and activation of nanomaterials. This includes studies concerning the binding of the biomolecules to the surface of inorganic structures, structure/function relationships of the final materials and extensive discussions on the final applications of such biomimetic materials in unique applications including energy harvesting/storage, biomedical diagnostics and materials assembly.

Download or read book Biomimetic and Bioinspired Nanomaterials written by Challa S. S. R. Kumar and published by John Wiley & Sons. This book was released on 2010-09-20 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book series Nanomaterials for the Life Sciences, provides an in-depth overview of all nanomaterial types and their uses in the life sciences. Each volume is dedicated to a specific material class and covers fundamentals, synthesis and characterization strategies, structure-property relationships and biomedical applications. The series brings nanomaterials to the Life Scientists and life science to the Materials Scientists so that synergies are seen and developed to the fullest. Written by international experts of various facets of this exciting field of research, the series is aimed at scientists of the following disciplines: biology, chemistry, materials science, physics, bioengineering, and medicine, together with cell biology, biomedical engineering, pharmaceutical chemistry, and toxicology, both in academia and fundamental research as well as in pharmaceutical companies. VOLUME 7 - Biomimetic and Bioinspired Nanomaterials

Download or read book Biological Nanostructures and Applications of Nanostructures in Biology written by Michael A. Stroscio and published by Springer Science & Business Media. This book was released on 2006-04-11 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biological Nanostructures and Applications of Nanostructures in Biology: Electrical, Mechanical, and Optical Properties contains reviews and discussions of contemporary and relevant topics dealing with the interface between the science and technology of nanostructures and the science of biology. Moreover, this book supplements these past groundbreaking discoveries with discussions of promising new avenues of research that reveal the enormous potential of emerging approaches in nanobiotechnology. The topics include: - Biomedical applications of semiconductor quantum dots, - Integrating and tagging biological structures with nanoscale quantum dots, - Applications of carbon nanotubes in bioengineering, - Nanophysical properties of living cells, - Bridging natural nanotubes with fabricated nanotubes, - Bioinspired approaches to building nanoscale devices and systems, - Hairpin formation in polynucleotides. This state-of-the-art survey of key developments in nanotechnology - as they apply to bioengineering and biology - is essential reading for all academics, biomedical engineers, medical physicists, and industry professionals wishing to take advantage of the latest developments and highly-promising discoveries in nanoscience underlying applications in bioengineering and biology.

Download or read book Surface Engineering 2002 Synthesis Characterization and Applications Volume 750 written by A. Kumar and published by . This book was released on 2003-06-02 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a forum for international and interdisciplinary discussion of phenomena where materials performance may be enhanced through engineered surfaces and interfaces. The materials science of hard and wear-resistant coatings, including nanostructured coatings, is a scientifically challenging problem with immediate technological applications in machine and machining tools, magnetic recording and other manufacturing industries. Hard coating systems designed for use in next-generation materials applications must achieve a combination of physical properties. The performance and reliability of MEMS devices strongly depend on the near-surface properties and many materials issues at the micro- and nanoscale remain to be resolved. This book reviews key aspects, discusses ongoing research and speculates on future trends. Topics include: nano- and micrometer-scale characterization and properties; synthesis and characterization of nanostructured materials; deposition, characterization and properties of films and coatings; industrial applications of surface engineering; atomistic and continuum modeling of materials properties; surface engineering issues for bio/microelectronics applications; and surface engineering issues in MEMS structures and devices.

Download or read book Organic and Polymeric Materials and Devices written by Materials Research Society. Meeting and published by . This book was released on 2003 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of organic semiconductors has seen much development in the past years. Displays based on light-emitting diodes made of small organic molecules as well as polymers, have recently been commercialized. Other applications, such as electronic circuits for tagging, efficient photovoltaic devices and biosensors, have already been demonstrated. This volume brings together a "wish list" of leading researchers in the fields of chemistry, physics and technology of organic devices. Novel device concepts such as charge-generation layers, metal complexes and the use of heterojunctions are presented and should lead to further improvement in the efficiency of organic light-emitting diodes. In the field of organic transistors, major progress is reported on the charge-transport properties of organic semiconductors; mobilities up to 5cm2/Vs are reported for pentacene-based transistors. High mobility n-type materials, which enable the development of ambipolar organic electronic circuits, are also discussed. And new approaches to fully printable displays on substrates, such as textiles and paper, are presented. These may lead the way to new applications of organic optoelectronic devices.

Download or read book Functionalized Nanoscale Materials Devices and Systems written by Ashok K. Vaseashta and published by Springer Science & Business Media. This book was released on 2008-10-23 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary objective of the NATO Advanced Study Institute (ASI) titled “Functionalized Nanoscale Materials, Devices, and Systems for Chem. -Bio Sensors, Photonics, and Energy Generation and Storage” was to present a contemporary and comprehensive overview of the field of nanostructured materials and devices and its applications in chem. -bio sensors, nanophotonics, and energy generation and storage devices. The study has become one of the most promising disciplines in science and technology, as it aims at the fundamental understanding of new physical, che- cal, and biological properties of systems and the technological advances arising from their exploration. Such systems are intermediate in size, between the isolated atoms and molecules and bulk material, where the unique transitional characteristics between the two can be understood, controlled, and manipulated. Nanotechnologies refer to the creation and utilization of functional materials, devices, and systems with novel properties and functions that are achieved through the control of matter, atom-by-atom, molecule-by-molecule, or at a micro-mo- cular level. Advances made over the last few years provide new opportunities for scientific and technological developments in nanostructures and nanosystems with new architectures with improved functionality. The field is very actively and rapidly evolving and covers a wide range of disciplines. Recently, various nanoscale materials, devices, and systems with remarkable properties have been developed, with numerous unique applications in chemical and biological sensors, nanophotonics, nano-biotechnology, and in-vivo analysis of cellular processes at the nanoscale.

Download or read book Bioinspired Intelligent Nanostructured Interfacial Materials written by Lei Jiang and published by World Scientific. This book was released on 2010 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intelligent materials are emerging composite functional materials that have boomed since the 1990s. The intelligent material system, involving a multitude of structures and functions, combines studies that explore nature, mimic nature and surpass nature. It also provides novel ideas, new theories, and cutting-edge methodologies for the innovation of science and technology. Thus, mimicking the micro/nanostructures and functions found in nature will build a bridge between biology and technology, which may provide inspirations for solving today's technological problems. This book gives a complementary introduction about natural and artificial micro/nanoscale interfacial materials, devoting largely to the intelligent materials with special wettabilities. Inspired by nature, the authors proposed a concept of "binary cooperative complementary micro/nanoscale interfacial materials". Based on this design concept, the contact and coupling of heterogeneous materials will result in novel properties on the surface or interface of materials, which may create new functional materials and devices. This book combines popular science and professional knowledge, which will be suitable for not only researchers but also science lovers.

Download or read book Surface Engineering written by and published by . This book was released on 2002 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Materials Research to Meet 21st Century Defense Needs written by National Research Council and published by National Academies Press. This book was released on 2003-03-25 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to achieve the revolutionary new defense capabilities offered by materials science and engineering, innovative management to reduce the risks associated with translating research results will be needed along with the R&D. While payoff is expected to be high from the promising areas of materials research, many of the benefits are likely to be evolutionary. Nevertheless, failure to invest in more speculative areas of research could lead to undesired technological surprises. Basic research in physics, chemistry, biology, and materials science will provide the seeds for potentially revolutionary technologies later in the 21st century.

Download or read book Biological Materials Science written by Marc André Meyers and published by Cambridge University Press. This book was released on 2014-07-31 with total page 647 pages. Available in PDF, EPUB and Kindle. Book excerpt: Taking a unique materials science approach, this text introduces students to the basic concepts and applications of materials and biomedical engineering and prepares them for the challenges of the new interdisciplinary field of biomaterials science. Split into three sections - Basic Biology Principles, Biological Materials, and Bioinspired Materials and Biomimetics - it presents biological materials along with the structural and functional classification of biopolymers, bioelastomers, foams, and ceramic composites. More traditional biomimetic designs such as Velcro are then discussed in conjunction with new developments that mimic the structure of biological materials at the molecular level, mixing nanoscale with biomolecular designs. Bioinspired design of materials and structures is also covered. Focused presentations of biomaterials are presented throughout the text in succinct boxes, emphasising biomedical applications, whilst the basic principles of biology are explained, so no prior knowledge is required. The topics are supported by approximately 500 illustrations, solved problems, and end-of-chapter exercises.

Download or read book Biological and Bioinspired Materials and Devices written by Materials Research Society. Meeting and published by . This book was released on 2004 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: The special interest afforded biological and bioinspired materials and devices lies in the fact that many biological materials, as diverse as bone and teeth and spider silk, have highly refined and sophisticated platforms of structure that are well organized at hierarchical levels spanning nanoscale to microscale measures. There is absolutely strict and precise control of materials synthesis exerted by these natural systems, and vigorous study and advancement in the fields of biomineralization, molecular biology, and DNA technology, for instance, have brought increasing understanding of such control in ever expanding fashion. This knowledge has been quickly transferred into the design and development of synthetic materials that mimic their biological counterparts. In this context, an explosion in research in the past few years has centered on the identification and synthesis of 1) unique ceramics or composites for biomaterials, magnetic and optical use, 2) self-assembled biopolymeric systems for biomaterials and biosensor application, and 3) colloidal and amphiphilic systems for relevance in biomedicine, nanotechnology, and biosensor fabrication. Therefore, new nanocrystalline composites, nanofibers, biosteel fibers, novel biosensors, distinctive drug-delivery systems, exceptional tissue engineering scaffolds, exclusive molecular imprinting matrices, and innovative photonic crystals are suddenly available. Given this backdrop, the papers in this volume involve biology, medicine, engineering, physics, chemistry, and materials science. Topics include biomineralization and the structure and mechanical, magnetic, and optical properties of biominerals; implant materials for dental, maxillofacial, orthopaedic, urological, and ophthalmic applications; tissue adhesives and cements; material degradation and implant failure; organic modification of surfaces and their biocompatibility; tissue engineering with cells and scaffolding to generate extracellular matrices for tissue regeneration; emerging technologies in tissue engineering, including application of stem cells and gene therapy; in situ and ex situ characterization techniques and imaging of biomaterials; pharmaceutical crystallization and materials for drug and gene delivery; supramolecular and biological self assembly; and structure and dynamics of organic/inorganic interfaces.

Download or read book Bioinspired Structures and Design written by Wole Soboyejo and published by Cambridge University Press. This book was released on 2020-09-17 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master simple to advanced biomaterials and structures with this essential text. Featuring topics ranging from bionanoengineered materials to bio-inspired structures for spacecraft and bio-inspired robots, and covering issues such as motility, sensing, control and morphology, this highly illustrated text walks the reader through key scientific and practical engineering principles, discussing properties, applications and design. Presenting case studies for the design of materials and structures at the nano, micro, meso and macro-scales, and written by some of the leading experts on the subject, this is the ideal introduction to this emerging field for students in engineering and science as well as researchers.

Download or read book Implantable Bioelectronics written by Evgeny Katz and published by John Wiley & Sons. This book was released on 2014-02-27 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here the renowned editor Evgeny Katz has chosen contributions that cover a wide range of examples and issues in implantable bioelectronics, resulting in an excellent overview of the topic. The various implants covered include biosensoric and prosthetic devices, as well as neural and brain implants, while ethical issues, suitable materials, biocompatibility, and energy-harvesting devices are also discussed. A must-have for both newcomers and established researchers in this interdisciplinary field that connects scientists from chemistry, material science, biology, medicine, and electrical engineering.

Download or read book Nature Inspired Structured Functional Surfaces written by Zhiwu Han and published by John Wiley & Sons. This book was released on 2022-07-25 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gives a comprehensive description on the biological model, basic physical models, fabrication/characterization of bioinspired materials and their functions.