Download or read book Aromatic Electron Donor acceptor Interactions in Novel Supramolecular Assemblies written by Joseph James Reczek and published by . This book was released on 2006 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation describes the use of the Dan:Ndi interaction in new systems and environments, expanding the potential and scope for applications of this chemistry. This work specifically focuses on inter-molecular assemblies, with novel molecular designs for solution interactions as well as the group's first exploration of designed solid state and bulk properties.
Download or read book Investigation of solvent effects in aromatic electron donor acceptor interactions written by Mark Stull Cubberley and published by . This book was released on 2000 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aromatic Donor acceptor Interactions written by Valerie Jean Bradford and published by . This book was released on 2008 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aromatic donor-acceptor interactions have been utilized by the Iverson group in the development of abiotic molecules, called aedamers, that achieve new folding motifs, intermolecular association in heteroduplexes, and new material properties. These molecules exploit the interaction between the electron-rich 1,5-dialkoxynapthalene (DAN) and electron-deficient 1,4,5,8-naphthalenetetracarboxylic diimide (NDI) units in a face-centered stacking geometry in aqueous solution. This dissertation describes the use of DAN-NDI interactions in the realm of peptides and proteins to expand the scope for applications of this interaction. This work specifically focuses on three areas of aromatic donor-acceptor interactions: achieving protein behavior with abiotic molecules, introducing the interaction into natural peptides, and utilizing the interaction in the intermolecular association of an abiotic molecule and a natural peptide. Chapter 2 refines the model of aggregation of an amphiphilic aedamer, which forms a hydrogel upon heating. The aedamer behaves similarly to proteins called amlyoids, which form fibrils and plaques in vivo which have been implicated in a variety of diseases, including Alzheimer's. Chapter 3 describes the synthesis of [alpha]-amino acids with DAN- and NDI-containing side chains. These amino acids can be used in a peptide model of [beta]-hairpin secondary structure. The model system can determine whether aromatic donor-acceptor interactions are useful in stabilizing peptide and protein structure. Chapter 4 describes the study of the Anchored Periplasmic Expression System (APEx) for use in screening random peptide libraries. A random peptide library is used to determine the sequence of a natural peptide, potentially containing electron-rich aromatic residues, which could bind an NDI oligomer with high affinity for use as a protein expression tag. Chapter 5 describes work toward the use of cyclic NDI bisintercalators for binding both the major and minor grooves of a specific sequence of DNA simultaneously, in addition to the use of cyclic NDI and DAN molecules for the further study of NDI-DAN interactions in abiotic intermolecular assembiles. Overall, this work has advanced the application of aromatic donor-acceptor interactions in peptides and should serve as a foundation for the future study of this interaction in protein folding and behavior in biological systems.
Download or read book Exploration of Novel Architectures for Aromatic Electronic Donor acceptor Hetero duplexes written by Stevan Ashad Samuel and published by . This book was released on 2011 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research within the Iverson group has been primarily focused around the investigation of aromatic donor-acceptor interactions between an electron-rich 1,5-dialkoyxnaphthalene (DAN) molecule and the electron-deficient 1,4,5,8-naphthalenetetracarboxylic diimide (NDI) species. The complementary electrostatics within this aromatic system is responsible for the powerful associative properties of these two molecules when placed in aqueous environments, leading to highly ordered, discrete face-centered modes of stacking upon complexation. The exploitation of these interactions has lead to the formation of novel molecules, called aedamers, which achieve a variety of directed folded topologies and extended hydrogel networks, oligomers which form distinct intermolecular hetero-duplex assemblies, and unique crystalline materials with novel tunable liquid crystalline properties. This dissertation describes the use of DAN-NDI aromatic donor-acceptor interactions in the design and construction of new oligomer architectures, with the aim of driving intermolecular hetero-duplex formation with higher fidelity and increased binding affinities. Chapter 2 describes efforts towards the design and construction of an amino acid based oliogmer with a highly rigidified molecular framework. A structurally rigidified scaffold would enhance the intermolecular association observed in our aromatic donor-acceptor hetero-duplexes allowing access to highly intricate and well-ordered networks in aqueous environments. Chapter 3 describes the design and synthesis of a novel DNA based architecture with the intention of creating aromatic donor-acceptor nucleoside analogs of the ubiquitous DNA building blocks. Fabrication of this novel subunit would facilitate the modular construction of larger, extended donor-acceptor oligomers enabling the formation of more expansive hetero-duplex assemblies hopefully exhibiting increased binding affinities. As a whole, these projects seek to probe the specific elements necessary for the selective intermolecular association of DAN-NDI donor-acceptor oligomers. Fine tuning of the non-covalent interactions of this class of molecules can increase the level of control we see in the directed self-assembly of these aromatic hetero-duplexes in aqueous environments. With this in hand, these systems can now potentially be utilized in a variety of applications ranging from surface immobilization techniques, to novel water-soluble polymeric materials and biologically compatible non-natural peptide based artificial proteins.
Download or read book How to Assemble in Water Without Really Bonding written by Chelsea RamEl Martinez and published by . This book was released on 2011 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: Non-covalent interactions are of great interest to chemists and biologists who study the molecular structure and function of biological systems, as well as those who seek to control, undo, or improve upon the efficiency of these systems with man-made chemical tools. The Iverson group has specifically applied noncovalent aromatic donor-acceptor interactions to biotic and abiotic aqueous systems through the use of the electron-rich 1,5-dialkoxynaphthalene (DAN) and electron-deficient 1,4,5,8-naphthalenetetracarboxylic diimide (NDI) moieties. Chapter 1 introduces and reviews the current state of self-assembly research, especially work conducted in aqueous media. Chapter 2 delineates the design and synthesis of a molecule that can self-assemble and form disulfide bonds, with the goal of creating higher-order structure. Chapter 3 comprises the design and synthesis of a series of pendant-NDI bisintercalators of DNA that are distinct from the backbone-incorporated intercalators previously employed in our laboratory. Chapter 4 contextualizes the term of art "pi-stacking," reviewing the current state of knowledge of specific contributions to this effect and commenting on the putative uniqueness of the interaction. Theoretical and experimental work in the field is summarized. The work discussed in this dissertation serves to expand the scope of programmability of our DNA intercalators, to probe the higher-order assembly behavior of our donor-acceptor pair, and to clarify the term "pi-stacking," lately overused, that imperfectly describes the interaction that gives both these systems their compelling binding properties.
Download or read book Photochemistry written by D Bryce-Smith and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 577 pages. Available in PDF, EPUB and Kindle. Book excerpt: The breadth of scientific and technological interests in the general topic of photochemistry is truly enormous and includes, for example, such diverse areas as microelectronics, atmospheric chemistry, organic synthesis, non-conventional photoimaging, photosynthesis, solar energy conversion, polymer technologies, and spectroscopy. This Specialist Periodical Report on Photochemistry aims to provide an annual review of photo-induced processes that have relevance to the above wide-ranging academic and commercial disciplines, and interests in chemistry, physics, biology and technology. In order to provide easy access to this vast and varied literature, each volume of Photochemistry comprises sections concerned with photophysical processes in condensed phases, organic aspects which are sub-divided by chromophore type, polymer photochemistry, and photochemical aspects of solar energy conversion. Volume 34 covers literature published from July 2001 to June 2002. Specialist Periodical Reports provide systematic and detailed review coverage in major areas of chemical research. Compiled by teams of leading authorities in the relevant subject areas, the series creates a unique service for the active research chemist, with regular, in-depth accounts of progress in particular fields of chemistry. Subject coverage within different volumes of a given title is similar and publication is on an annual or biennial basis.
Download or read book Naphthalenediimide and its Congeners written by G Dan Pantos and published by Royal Society of Chemistry. This book was released on 2017-03-20 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: The past decade has seen significant advances in naphthalenediimide and rylene diimide chemistry. This book discusses the recent advances in this field, and highlights potential and real applications for the molecules. Such applications include organic photovoltaics, anion-slides, DNA binders, and building blocks for complex molecular topologies. Naphthalenediimide and its Congeners is the first book in this rapidly developing area, and will be essential reference material for postdoctoral researchers and postgraduate students. This text will also provide a solid foundation for further development of naphthalenediimide chemistry. Written by leaders in the field, the book includes chapters on the supramolecular chemistry of naphthalenediimide; DNA intercalators; ion transport through membranes; naphthalenediimide based photovoltaics; and rylene dyes, amongst others. Naphthalenediimide and its Congeners is a detailed and in depth resource relevant not only to supramolecular and materials chemists, but also to the larger chemistry and materials science fields.
Download or read book Synthetic Polymer Chemistry written by Zheng Zhao and published by Royal Society of Chemistry. This book was released on 2019-09-09 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymeric materials form the basis of daily life. Despite the great contribution of traditional methodologies such as anionic and radical polymerizations in preparing various functional polymers, the increasing demand for polymers with new structures and functions has inspired the development of new synthetic techniques. Many new polymerizations including click polymerization, controlled/living radical polymerization, multicomponent polymerization have been well developed. Focusing on breakthroughs and recent progress, Synthetic Polymer Chemistry provides efficient tools for the synthesis of linear and topological polymers. Chapters cover topics including fabrication of supramolecular polymers, organocatalytic synthesis and olefin co(polymerization). This title will be a valuable reference for those working in polymer chemistry, as well as students and researchers interested in opto-electronic, biological and materials sciences.
Download or read book Exploiting Aromatic Donor acceptor Recognition in the Folding and Binding of Naphthyl Oligomers written by Gregory John Gabriel and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Influence of Electron donor acceptor Interactions on the Competitive Sorption of Polycyclic Aromatic Hydrocarbons in Soil written by Stefan Arthaber and published by . This book was released on 2018 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polyzyklische aromatische Kohlenwasserstoffe weisen eine hohe Affinität zukohlenstoffreichen Bodenbestandteilen auf mit denen sie sehr starke Bindungeneingehen können und wodurch die Verfügbarkeit von PAKs in Böden sinkt. Dieskann verhindern, dass kontaminierter Boden effektiv mikrobiologisch behandeltwerden kann. Da im Boden nur begrenzte Bindungsplätze vorhanden sind kanndie Verfügbarkeit von Substanzen durch Verdrängung an diesen Bindungsplätzenerhöht werden. Diese Arbeit untersucht den Einfluss von Elektronen-Donor-Akzeptor-Interaktionen (EDA) auf die Erhöhung der Verfügbarkeit von PAKs.Kontaminierter Boden wird mit sorptive bioaccessibilty extraction (SBE)analysiert, um vier Substanzen, die verschiedene Arten von EDA eingehenkönnen, zu vergleichen: Toluol (schwacher p - Elektronen Donator),Methylcyclohexan (keine EDA), Nitrotoluol ( p - Elektronen Akzeptor) und Toluidin(starker p - Elektronen Donator). Mit konventioneller SBE wurde einbioverfügbarer Anteil an PAK in der Höhe von 8.49 ± 0.37% festgestellt, wobeies in Gegenwart aller kompetitiven Substanzen zu einer Erhöhung derverfügbaren Fraktion kam. Vergleicht man die Größe des desorbierten Anteils anPAKs, reihen sich die Kompetitor-Substanzen wie folgt: Toluidin
Download or read book Supramolecular Chemistry in Corrosion and Biofouling Protection written by Viswanathan S. Saji and published by CRC Press. This book was released on 2021-12-23 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Supramolecular chemistry, "the chemistry beyond the molecule", is a fascinating realm of modern science. The design of novel supramolecular structures, surfaces, and techniques are at the forefront of research in different application areas, including corrosion and biofouling protection. A team of international experts provide a comprehensive view of the applications and potential of supramolecular chemistry in corrosion and biofouling prevention. Chapter topics include types and fundamentals of supramolecules, supramolecular polymers and gels, host-guest inclusion compounds, organic-inorganic hybrid materials, metallo-assemblies, cyclodextrins, crown ethers, mesoporous silica and supramolecular structures of graphene and other advances. Additional Features include: Focuses on different aspects of supramolecular chemistry in corrosion and biofouling prevention. Comprehensively covers supramolecular interactions that can provide better corrosion and biofouling protection. Provides the latest developments in self-healing coatings. Explores recent research advancements in the suggested area. Includes case studies specific to industries. The different supramolecular approaches being investigated to control corrosion and biofouling are gathered in one well-organized reference to serve senior undergraduate and graduate students, research students, engineers, and researchers in the fields of corrosion science & engineering, biofouling, and protective coatings.
Download or read book Synthesis Spectroscopy Solution Structural Characterization and Electron Transfer Kinetics of Systems Designed to Probe Donor acceptor Electronic Coupling Modulated by Stacked Aromatic Residues Separated by Less Than the Sums of Their Van Der Waals Radii written by Peter M. Iovine and published by . This book was released on 2000 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Crystalline Molecular Complexes and Compounds written by Frank H. Herbstein and published by Oxford University Press, USA. This book was released on 2005 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an account of the structure and properties of crystalline binary adducts. Such crystals are perhaps better known as molecular compounds and complexes and are estimated to make up one quarter of the world's crystals. More than 600 figures, 200 tables and 3500 references are included in the book.
Download or read book Handbook of Food Analysis written by Leo M.L. Nollet and published by CRC Press. This book was released on 2004-06-01 with total page 876 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thoroughly updated to accommodate recent research and state-of-the-art technologies impacting the field, Volume 2: Residues and Other Food Component Analysis of this celebrated 3 volume reference compiles modern methods for the detection of residues in foods from pesticides, herbicides, antibacterials, food packaging, and other sources. Volume 2 ev
Download or read book Insights from Imaging in Bioinorganic Chemistry written by and published by Academic Press. This book was released on 2016-01-11 with total page 525 pages. Available in PDF, EPUB and Kindle. Book excerpt: Insights from Imaging in Bioinorganic Chemistry continues a long-running series that describes recent advances in scientific research, in particular, in the field of inorganic chemistry. Several highly regarded experts, mostly from academe, contribute on specific topics. The series editor chooses a sub-field within inorganic chemistry as the theme and focus of the volume, extending invitations to experts for their contributions; the current theme is insights from metal ion imaging in bioinorganic and medicinal chemistry. Contains concise, informative accounts that are not too highly specialized, therefore appealing to a wide range of scientists and health professionals Presents contributions from highly qualified international experts Provides intrinsic scientific interest and applications, including important issues relating to the diagnosis and therapeutics that are relevant to public health
Download or read book Donor acceptor Interactions written by Joanne Hall Smith and published by . This book was released on 1977 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theory of Change Transfer in Aromatic Donor acceptor Crystals written by Paul J. Strebel and published by . This book was released on 1971 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
