The Photophysics And Quantum Mechanics Of Cryptophyte Photosynthesis

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The Photophysics and Quantum Mechanics of Cryptophyte Photosynthesis

Author : Alexander Bastiaan Doust
Publisher :
ISBN 13 : 9780494157480
Total Pages : 464 pages
Book Rating : 4.1/5 (574 download)

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Book Synopsis The Photophysics and Quantum Mechanics of Cryptophyte Photosynthesis by : Alexander Bastiaan Doust

Download or read book The Photophysics and Quantum Mechanics of Cryptophyte Photosynthesis written by Alexander Bastiaan Doust and published by . This book was released on 2006 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis is a comprehensive study of the optical properties and the critical role of phycobiliproteins in the absorption of green light for photosynthesis in cryptophyte algae (Rhodomonas CS24 and Chroomonas CCMP270). Investigations of two different isolated proteins, phycoerythrin 545 and phycocyanin 645, are described. In addition, the intact algae are investigated to elucidate the workings of these antennae proteins within the machinery of the organism. The crystal structures of these proteins are known to 0.97 and 1.4 A resolution, respectively. These data confirm that the proteins each bind eight open-chain tetrapyrrole phycobilin chromophores, which, in these proteins, are phycoerythrobilin, dihydrobiliverdin, phycocyanobilin, and mesobiliverdin. These bilins are covalently attached to the protein backbone by cysteine bonds. The extended conformation, conjugation length, protonation state and electronic couplings to other bilins or protein residues all play an important role in ensuring that these pigments function efficiently as photosynthetic light harvesters. Chapter 1 of this thesis outlines the evolution of phycobiliproteins and cryptophyte algae, as well as describing in detail the structures of both phycoerythrin 545 and phycocyanin 645. Chapter 2 provides a background to all the experimental and computational techniques that are employed, as well as the data analysis and global and target modeling of the ultrafast data. Chapter 3 describes the results and discussion of all the work on phycoerythrin 545, with Chapter 4 describing the subsequent experiments that reveal the role of phycoerythrin 545 in the overall photosynthetic energy transfer pathways in intact algae. Chapter 5 is an up-to-date evaluation of phycoerythrin 645, where structural data is combined with steady state and ultrafast heterodyne detected transient grating to generate a non-quantitative model of function. Chapter 6 provides a combined conclusion to all the work that has been performed and presented in this thesis. These phycobilins are the focus of most of the work. Steady-state spectroscopies, including polarization anisotropy and circular dichroism, are combined with ultrafast transient grating and transient absorption spectroscopies and subsequent global analyses to reveal a detailed picture of energy transfer within the proteins. In addition, energy transfer from phycoerythrin 545 to chlorophyll-containing light harvesting complexes and photosystems in intact algae is investigated by steady-state spectroscopy and time-resolved fluorescence. Quantum mechanical computational methods are employed to calculate phycobilin excited states, and generate transition density cubes which are used to accurately determine the electronic coupling between the chromophores in phycoerythrin 545 and phycocyanin 645. Modelling of the phycobilin lineshape function has allowed the precise estimation of the energy transfer times among the bilins in phycoerythrin 545 by way of the generalized Forster theory as well as reproducing the absorption and circular dichroism spectra. Kinetic models for exciton dynamics in both proteins are presented. The roles of the central dimer bilins and the final energy transfer step between the two red-most DBV bilins in phycoerythrin 545 are discussed in detail.

Spectroscopic Investigations of the Photophysics of Cryptophyte Light-Harvesting

Author : Rayomond Dinshaw
Publisher :
ISBN 13 : 9780494928981
Total Pages : pages
Book Rating : 4.9/5 (289 download)

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Book Synopsis Spectroscopic Investigations of the Photophysics of Cryptophyte Light-Harvesting by : Rayomond Dinshaw

Download or read book Spectroscopic Investigations of the Photophysics of Cryptophyte Light-Harvesting written by Rayomond Dinshaw and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Quantum Electrodynamics of Photosynthesis

Author : Artur Braun
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3110627000
Total Pages : 552 pages
Book Rating : 4.1/5 (16 download)

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Book Synopsis Quantum Electrodynamics of Photosynthesis by : Artur Braun

Download or read book Quantum Electrodynamics of Photosynthesis written by Artur Braun and published by Walter de Gruyter GmbH & Co KG. This book was released on 2020-10-12 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book uses an array of different approaches to describe photosynthesis, ranging from the subjectivity of human perception to the mathematical rigour of quantum electrodynamics. This interdisciplinary work draws from fields as diverse as astronomy, agriculture, classical and quantum optics, and biology in order to explain the working principles of photosynthesis in plants and cyanobacteria.

The Role of Phycobilins in Cryptophyte Photosynthesis

Author : Alexander Doust
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783838310121
Total Pages : 232 pages
Book Rating : 4.3/5 (11 download)

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Book Synopsis The Role of Phycobilins in Cryptophyte Photosynthesis by : Alexander Doust

Download or read book The Role of Phycobilins in Cryptophyte Photosynthesis written by Alexander Doust and published by LAP Lambert Academic Publishing. This book was released on 2009-10 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the detailed mechanisms of photosynthesis has become an ever increasingly important research field, as the community aims to apply the understandings from nature to design elements in organic photovoltaics. This thesis is a comprehensive study of the optical properties and the critical role of phycobiliproteins in the absorption of green light for photosynthesis in cryptophyte algae (Rhodomonas CS24 and Chroomonas CCMP270). Investigations of two different isolated proteins, phycoerythrin 545 and phycocyanin 645, are described in addition to investigating the workings of these antennae proteins within the machinery of intact algae. Steady-state and ultrafast spectroscopies with subsequent global analyses, modeling and quantum mechanical calculations are employed to reveal a detailed picture of energy transfer within the proteins and to the photosystems in the intact algae. Any researcher interested in photosynthesis and energy transfer would benefit greatly from the work presented, as a comprehensive experimental and theoretical guide to understanding energy transfer and light harvesting in these natural systems.

Light Harvesting in Photosynthesis

Author : Roberta Croce
Publisher : CRC Press
ISBN 13 : 1351242873
Total Pages : 793 pages
Book Rating : 4.3/5 (512 download)

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Book Synopsis Light Harvesting in Photosynthesis by : Roberta Croce

Download or read book Light Harvesting in Photosynthesis written by Roberta Croce and published by CRC Press. This book was released on 2018-01-12 with total page 793 pages. Available in PDF, EPUB and Kindle. Book excerpt: This landmark collective work introduces the physical, chemical, and biological principles underlying photosynthesis: light absorption, excitation energy transfer, and charge separation. It begins with an introduction to properties of various pigments, and the pigment proteins in plant, algae, and bacterial systems. It addresses the underlying physics of light harvesting and key spectroscopic methods, including data analysis. It discusses assembly of the natural system, its energy transfer properties, and regulatory mechanisms. It also addresses light-harvesting in artificial systems and the impact of photosynthesis on our environment. The chapter authors are amongst the field’s world recognized experts. Chapters are divided into five main parts, the first focused on pigments, their properties and biosynthesis, and the second section looking at photosynthetic proteins, including light harvesting in higher plants, algae, cyanobacteria, and green bacteria. The third part turns to energy transfer and electron transport, discussing modeling approaches, quantum aspects, photoinduced electron transfer, and redox potential modulation, followed by a section on experimental spectroscopy in light harvesting research. The concluding final section includes chapters on artificial photosynthesis, with topics such as use of cyanobacteria and algae for sustainable energy production. Robert Croce is Head of the Biophysics Group and full professor in biophysics of photosynthesis/energy at Vrije Universiteit, Amsterdam. Rienk van Grondelle is full professor at Vrije Universiteit, Amsterdam. Herbert van Amerongen is full professor of biophysics in the Department of Agrotechnology and Food Sciences at Wageningen University, where he is also director of the MicroSpectroscopy Research Facility. Ivo van Stokkum is associate professor in the Department of Physics and Astronomy, Faculty of Sciences, at Vrije Universiteit, Amsterdam.

Chlorophyll a Fluorescence in Aquatic Sciences: Methods and Applications

Author : David J. Suggett
Publisher : Springer Science & Business Media
ISBN 13 : 9048192684
Total Pages : 332 pages
Book Rating : 4.0/5 (481 download)

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Book Synopsis Chlorophyll a Fluorescence in Aquatic Sciences: Methods and Applications by : David J. Suggett

Download or read book Chlorophyll a Fluorescence in Aquatic Sciences: Methods and Applications written by David J. Suggett and published by Springer Science & Business Media. This book was released on 2010-08-23 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements of variable chlorophyll fluorescence have revolutionised global research of photosynthetic bacteria, algae and plants and in turn assessment of the status of aquatic ecosystems, a success that has partly been facilitated by the widespread commercialisation of a suite of chlorophyll fluorometers designed for almost every application in lakes, rivers and oceans. Numerous publications have been produced as researchers and assessors have simultaneously sought to optimise protocols and practices for key organisms or water bodies; however, such parallel efforts have led to difficulties in reconciling processes and patterns across the aquatic sciences. This book follows on from the first international conference on “chlorophyll fluorescence in the aquatic sciences” (AQUAFLUO 2007): to bridge the gaps between the concept, measurement and application of chlorophyll fluorescence through the synthesis and integration of current knowledge from leading researchers and assessors as well as instrument manufacturers.

Quantum Effects in Biology

Author : Masoud Mohseni
Publisher : Cambridge University Press
ISBN 13 : 1107010802
Total Pages : 421 pages
Book Rating : 4.1/5 (7 download)

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Book Synopsis Quantum Effects in Biology by : Masoud Mohseni

Download or read book Quantum Effects in Biology written by Masoud Mohseni and published by Cambridge University Press. This book was released on 2014-08-07 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explores the role of quantum mechanics in biology for advanced undergraduate and graduate students in physics, biology and chemistry.

Photosynthetic Excitons

Author : Herbert van Amerongen
Publisher : World Scientific
ISBN 13 : 9789810232801
Total Pages : 612 pages
Book Rating : 4.2/5 (328 download)

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Book Synopsis Photosynthetic Excitons by : Herbert van Amerongen

Download or read book Photosynthetic Excitons written by Herbert van Amerongen and published by World Scientific. This book was released on 2000 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excitons are considered as the basic concept used by describing the spectral properties of photosynthetic pigment-protein complexes and excitation dynamics in photosynthetic light-harvesting antenna and reaction centers. Following the recently obtained structures of a variety of photosynthetic pigment-protein complexes from plants and bacteria our interest in understanding the relation between structure, function and spectroscopy has strongly increased. These data demonstrate a short interpigment distance (of the order of 1 nm or even smaller) and/or a highly symmetric (ring-like) arrangement of pigment molecules in peripheral light-harvesting complexes of photosynthetic bacteria. Books which were devoted to the exciton problem so far mainly considered the spectral properties of molecular crystals. However, the small size of these pigment aggregates in the pigment-protein complexes as well as the role of the protein, which is responsible for the structural arrangement of the complex, clearly will have a dramatic influence on the pigment spectra and exciton dynamics. All these aspects of the problem are considered in this book. Exciton theory is mainly considered for small molecular aggregates (dimers, ring-like structures etc.). Together with the theoretical description of the classical conceptual approach, which mainly deals with polarization properties of the absorption and fluorescence spectra, the nonlinear femtosecond spectroscopy which is widely used for investigations now is also discussed. A large part of the book demonstrates the excitonic effects in a multitude of photosynthetic pigment-protein complexes and how we can understand these properties on the basis of the exciton concept.

Dissertation Abstracts International

Author :
Publisher :
ISBN 13 :
Total Pages : 428 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Dissertation Abstracts International by :

Download or read book Dissertation Abstracts International written by and published by . This book was released on 1987 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Materials for Sustainable Energy

Author : Vincent Dusastre
Publisher : World Scientific
ISBN 13 : 9814317640
Total Pages : 360 pages
Book Rating : 4.8/5 (143 download)

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Book Synopsis Materials for Sustainable Energy by : Vincent Dusastre

Download or read book Materials for Sustainable Energy written by Vincent Dusastre and published by World Scientific. This book was released on 2011 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: The search for cleaner, cheaper, smaller and more efficient energy technologies has to a large extent been motivated by the development of new materials. The aim of this collection of articles is therefore to focus on what materials-based solutions can offer and show how the rationale design and improvement of their physical and chemical properties can lead to energy-production alternatives that have the potential to compete with existing technologies. In terms of alternative means to generate electricity that utilize renewable energy sources, the most dramatic breakthroughs for both mobile (i.e., transportation) and stationary applications are taking place in the fields of solar and fuel cells. And from an energy-storage perspective, exciting developments can be seen emerging from the fields of rechargeable batteries and hydrogen storage.

Photosynthesis in Algae

Author : Anthony W. D. Larkum
Publisher : Springer Science & Business Media
ISBN 13 : 9400710380
Total Pages : 499 pages
Book Rating : 4.4/5 (7 download)

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Book Synopsis Photosynthesis in Algae by : Anthony W. D. Larkum

Download or read book Photosynthesis in Algae written by Anthony W. D. Larkum and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the reader to algal diversity as currently understood and then traces the photosynthetic structures and mechanisms that contribute so much to making the algae unique. Indeed the field is now so large that no one expert can hope to cover it all. The 19 articles are each written by experts in their area; ranging over all the essential aspects and making for a comprehensive coverage of the whole field. Important developments in molecular biology, especially transformation mutants in Chlamydomonas, are dealt with, as well as areas important to global climate change, carbon dioxide exchange, light harvesting, energy transduction, biotechnology and many others. The book is intended for use by graduate students and beginning researchers in the areas of molecular and cell biology, integrative biology, plant biology, biochemistry and biophysics, biotechnology, global ecology, and phycology.

Regulation of Photosynthesis

Author : Eva-Mari Aro
Publisher : Springer Science & Business Media
ISBN 13 : 0306481480
Total Pages : 624 pages
Book Rating : 4.3/5 (64 download)

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Book Synopsis Regulation of Photosynthesis by : Eva-Mari Aro

Download or read book Regulation of Photosynthesis written by Eva-Mari Aro and published by Springer Science & Business Media. This book was released on 2006-04-11 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the expression of photosynthesis related genes including regulation both at transcriptional and translational levels. It reviews biogenesis, turnover, and senescence of thylakoid pigment protein complexes and highlights some crucial regulatory steps in carbon metabolism.

Quantum Foundations, Probability and Information

Author : Andrei Khrennikov
Publisher : Springer
ISBN 13 : 3319749714
Total Pages : 304 pages
Book Rating : 4.3/5 (197 download)

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Book Synopsis Quantum Foundations, Probability and Information by : Andrei Khrennikov

Download or read book Quantum Foundations, Probability and Information written by Andrei Khrennikov and published by Springer. This book was released on 2018-06-13 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Composed of contributions from leading experts in quantum foundations, this volume presents viewpoints on a number of complex problems through informational, probabilistic, and mathematical perspectives and features novel mathematical models of quantum and subquantum phenomena. Rich with multi-disciplinary mathematical content, this book includes applications of partial differential equations in quantum field theory, differential geometry, oscillatory processes and vibrations, and Feynman integrals for quickly growing potential functions. Due to rapid growth in the field in recent years, this volume aims to promote interdisciplinary collaboration in the areas of quantum probability, information, communication and foundation, and mathematical physics. Many papers discuss complex yet novel problems that depart from the mainstream of quantum physical studies. Others devote explanation to fundamental problems of the conventional quantum theory, including its mathematical formalism. Overall, authors cover a diverse set of topics, including quantum and classical field theory and oscillatory processing, quantum mechanics from a Darwinian evolutionary perspective, and biological applications of quantum theory. Together in one volume, these essays will be useful to experts in the corresponding areas of quantum theory. Theoreticians, experimenters, mathematicians, and even philosophers in quantum physics and quantum probability and information theory can consider this book a valuable resource.

Molecular Materials

Author : Duncan W. Bruce
Publisher : John Wiley & Sons
ISBN 13 : 1119972957
Total Pages : 455 pages
Book Rating : 4.1/5 (199 download)

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Book Synopsis Molecular Materials by : Duncan W. Bruce

Download or read book Molecular Materials written by Duncan W. Bruce and published by John Wiley & Sons. This book was released on 2011-04-04 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: “... the book does an excellent job of putting together several different classes of materials. Many common points emerge, and the book may facilitate the development of hybrids in which the qualities of the “parents” are enhanced.” –Angew. Chem. Int. Ed. 2011 With applications in optoelectronics and photonics, quantum information processing, nanotechnology and data storage, molecular materials enrich our daily lives in countless ways. These materials have properties that depend on their exact structure, the degree of order in the way the molecules are aligned and their crystalline nature. Small, delicate changes in molecular structure can totally alter the properties of the material in bulk. There has been increasing emphasis on functional metal complexes that demonstrate a wide range of physical phenomena. Molecular Materials represents the diversity of the area, encapsulating magnetic, optical and electrical properties, with chapters on: Metal-Based Quadratic Nonlinear Optical Materials Physical Properties of Metallomesogens Molecular Magnetic Materials Molecular Inorganic Conductors and Superconductors Molecular Nanomagnets Structured to include a clear introduction, a discussion of the basic concepts and up-to-date coverage of key aspects, each chapter provides a detailed review which conveys the excitement of work in that field. Additional volumes in the Inorganic Materials Series: Low-Dimensional Solids | Molecular Materials | Porous Materials | Energy Materials

Single Molecule Spectroscopy

Author : R. Rigler
Publisher : Springer Science & Business Media
ISBN 13 : 3642565441
Total Pages : 375 pages
Book Rating : 4.6/5 (425 download)

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Book Synopsis Single Molecule Spectroscopy by : R. Rigler

Download or read book Single Molecule Spectroscopy written by R. Rigler and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: The topics range from single molecule experiments in quantum optics and solid-state physics to analogous investigations in physical chemistry and biophysics.

Quantum Theory Of Tunneling (2nd Edition)

Author : Mohsen Razavy
Publisher : World Scientific
ISBN 13 : 9814525030
Total Pages : 792 pages
Book Rating : 4.8/5 (145 download)

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Book Synopsis Quantum Theory Of Tunneling (2nd Edition) by : Mohsen Razavy

Download or read book Quantum Theory Of Tunneling (2nd Edition) written by Mohsen Razavy and published by World Scientific. This book was released on 2013-12-17 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this revised and expanded edition, in addition to a comprehensible introduction to the theoretical foundations of quantum tunneling based on different methods of formulating and solving tunneling problems, different semiclassical approximations for multidimensional systems are presented. Particular attention is given to the tunneling of composite systems, with examples taken from molecular tunneling and also from nuclear reactions. The interesting and puzzling features of tunneling times are given extensive coverage, and the possibility of measurement of these times with quantum clocks are critically examined.In addition, by considering the analogy between evanescent waves in waveguides and in quantum tunneling, the times related to electromagnetic wave propagation have been used to explain certain aspects of quantum tunneling times. These topics are treated in both non-relativistic as well as relativistic regimes. Finally, a large number of examples of tunneling in atomic, molecular, condensed matter and nuclear physics are presented and solved.

Phycobiliproteins: Recent Developments and Future Applications

Author : Vinod K. Kannaujiya
Publisher : Springer
ISBN 13 : 9811064601
Total Pages : 155 pages
Book Rating : 4.8/5 (11 download)

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Book Synopsis Phycobiliproteins: Recent Developments and Future Applications by : Vinod K. Kannaujiya

Download or read book Phycobiliproteins: Recent Developments and Future Applications written by Vinod K. Kannaujiya and published by Springer. This book was released on 2017-12-22 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phycobiliproteins are water soluble, brilliantly colored accessory light-harvesting macromolecules organized in a supramolecular complexes on photosynthetic apparatus in cyanobacteria, red algae and cryptomonads. The objective of this book is to provide state of the art knowledge and highlight the recent developments and future biotechnological and biomedical applications of phycobiliproteins. This book will be highly useful for students, researchers, professionals and experts in the field of Life Sciences and Biomedical Sciences as well as industries for potential applications of phycobiliproteins.