Download or read book Single molecule Enzymology of Alpha chymotrypsin Using Microfabricated Arrays of Cylindrical Wells written by Angela Y. Chen and published by . This book was released on 2009 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Single-molecule enzymatic studies have introduced ways to identify and track the distributions of individual enzyme's reaction rates that are averaged in ensemble kinetics. We describe a simple method that combines the use of a microfabricated array of wells, a protease assay, and fluorescence microscopy to study our model enzyme alpha-chymotrypsin at the single-molecule level. The microfabrication process for the silicon wafer mold is outlined in detail, and the enzymatic assay is compared between ensemble and single-molecule experiments. In our method, PDMS wells are designed 2micron in diameter and 1.35micron in height. We isolate alpha-chymotrypsin into single molecules inside the cylindrical wells with an enzyme-to-substrate ratio of 1: 6,666 molecules. This method allows for the simultaneous tracking of hundreds of individual enzyme molecules over time. In our analysis of single-enzyme kinetics, we incorporate orange fluorescent microspheres (540/560nm) as the reference standard and correct for photobleaching of the dye in the protease assay. Our results show that single alpha-chymotrypsin molecules exhibit heterogeneous product formation rates that are stable for long durations.
Download or read book Handbook of Single Molecule Biophysics written by Peter Hinterdorfer and published by Springer Science & Business Media. This book was released on 2009-12-24 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook describes experimental techniques to monitor and manipulate individual biomolecules, including fluorescence detection, atomic force microscopy, and optical and magnetic trapping. It includes single-molecule studies of physical properties of biomolecules such as folding, polymer physics of protein and DNA, enzymology and biochemistry, single molecules in the membrane, and single-molecule techniques in living cells.
Download or read book Physics in Molecular Biology written by Kim Sneppen and published by Cambridge University Press. This book was released on 2005-08-25 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, first published in 2005, is a discussion for advanced physics students of how to use physics to model biological systems.
Download or read book Holographic Sensors written by Ali Kemal Yetisen and published by Springer. This book was released on 2014-12-03 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents a theoretical and experimental approach for the rapid fabrication, optimization and testing of holographic sensors for the quantification of pH, organic solvents, metal cations, and glucose in solutions. Developing non-invasive and reusable diagnostics sensors that can be easily manufactured will support the monitoring of high-risk individuals in any clinical or point-of-care setting. Sensor fabrication approaches outlined include silver-halide chemistry, laser ablation and photopolymerization. The sensors employ off-axis Bragg diffraction gratings of ordered silver nanoparticles and localized refractive index changes in poly (2-hydroxyethyl methacrylate) and polyacrylamide films. The sensors exhibited reversible Bragg peak shifts, and diffracted the spectrum of narrow-band light over the wavelength range λpeak ≈ 495-1100 nm. Clinical trials of glucose sensors in the urine samples of diabetic patients demonstrated that they offer superior performance compared to commercial high-throughput urinalysis devices. Lastly, a generic smartphone application to quantify colorimetric tests was developed and tested for both Android and iOS operating systems. The sensing platform and smartphone application may have implications for the development of low-cost, reusable and equipment-free point-of-care diagnostic devices.
Download or read book Core Concepts in Supramolecular Chemistry and Nanochemistry written by Jonathan W. Steed and published by John Wiley & Sons. This book was released on 2007-04-30 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Supramolecular chemistry and nanochemistry are two strongly interrelated cutting edge frontiers in research in the chemical sciences. The results of recent work in the area are now an increasing part of modern degree courses and hugely important to researchers. Core Concepts in Supramolecular Chemistry and Nanochemistry clearly outlines the fundamentals that underlie supramolecular chemistry and nanochemistry and takes an umbrella view of the whole area. This concise textbook traces the fascinating modern practice of the chemistry of the non-covalent bond from its fundamental origins through to it expression in the emergence of nanochemistry. Fusing synthetic materials and supramolecular chemistry with crystal engineering and the emerging principles of nanotechnology, the book is an ideal introduction to current chemical thought for researchers and a superb resource for students entering these exciting areas for the first time. The book builds from first principles rather than adopting a review style and includes key references to guide the reader through influential work. supplementary website featuring powerpoint slides of the figures in the book further references in each chapter builds from first principles rather than adopting a review style includes chapter on nanochemistry clear diagrams to highlight basic principles
Download or read book Nanotubes and Nanowires written by Peter John Burke and published by World Scientific. This book was released on 2007 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of nanotubes and nanowires is evolving at a rapid pace, with many potential applications in electronics, optics, and sensors, to name a few. In this book, various prominent researchers summarize our current understanding of these new materials systems, as well as some of these potential applications. A snapshot of the state-of-the-art in the field of nanowires and nanotubes, the contributions give an instructive mix of experimental, theoretical, and visionary material to give the reader an indication of where the field is now, and where it is going. With several points of view represented, including academic theoreticians, academic experimental device engineers, and industry researchers from well-known semiconductor companies, Nanotubes and Nanowires is an essential source of reference for physicists, chemists, materials scientists, and graduate students interested in keeping abreast of the latest developments in nanotechnology.
Download or read book BioMEMS and Biomedical Nanotechnology written by Mihrimah Ozkan and published by Springer Science & Business Media. This book was released on 2007-04-03 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contributions reporting on fundamental and applied investigations of the material science, biochemistry, and physics of biomedical microdevices with applications to Genomics and Proteomics. Topics include gene expression profiling utilizing microarray technology; imaging and sensing for gene detection and use in DNA analysis; and coverage of advanced microfluidic devices and the Humane Genome Project.
Download or read book Long Acting Injections and Implants written by Jeremy C. Wright and published by Springer Science & Business Media. This book was released on 2012-01-29 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: Long acting injections and implants improve therapy, enhance patient compliance, improve dosing convenience, and are the most appropriate formulation choice for drugs that undergo extensive first pass metabolism or that exhibit poor oral bioavailability. An intriguing variety of technologies have been developed to provide long acting injections and implants. Many considerations need to go into the design of these systems in order to translate a concept from the lab bench to actual therapy for a patient. This book surveys and summarizes the field. Topics covered in Long Acting Injections and Implants include the historical development of the field, drugs, diseases and clinical applications for long acting injections and implants, anatomy and physiology for these systems, specific injectable technologies (including lipophilic solutions, aqueous suspensions, microspheres, liposomes, in situ forming depots and self-assembling lipid formulations), specific implantable technologies (including osmotic implants, drug eluting stents and microfabricated systems), peptide, protein and vaccine delivery, sterilization, drug release testing and regulatory aspects of long acting injections and implants. This volume provides essential information for experienced development professionals but was also written to be useful for scientists just beginning work in the field and for others who need an understanding of long acting injections and implants. This book will also be ideal as a graduate textbook.
Download or read book Immobilized Biocatalysts written by Peter Grunwald and published by MDPI. This book was released on 2018-11-14 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Immobilized Biocatalysts" that was published in Catalysts
Download or read book Protein Conformational Dynamics written by Ke-li Han and published by Springer Science & Business Media. This book was released on 2014-01-20 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses how biological molecules exert their function and regulate biological processes, with a clear focus on how conformational dynamics of proteins are critical in this respect. In the last decade, the advancements in computational biology, nuclear magnetic resonance including paramagnetic relaxation enhancement, and fluorescence-based ensemble/single-molecule techniques have shown that biological molecules (proteins, DNAs and RNAs) fluctuate under equilibrium conditions. The conformational and energetic spaces that these fluctuations explore likely contain active conformations that are critical for their function. More interestingly, these fluctuations can respond actively to external cues, which introduces layers of tight regulation on the biological processes that they dictate. A growing number of studies have suggested that conformational dynamics of proteins govern their role in regulating biological functions, examples of this regulation can be found in signal transduction, molecular recognition, apoptosis, protein / ion / other molecules translocation and gene expression. On the experimental side, the technical advances have offered deep insights into the conformational motions of a number of proteins. These studies greatly enrich our knowledge of the interplay between structure and function. On the theoretical side, novel approaches and detailed computational simulations have provided powerful tools in the study of enzyme catalysis, protein / drug design, protein / ion / other molecule translocation and protein folding/aggregation, to name but a few. This work contains detailed information, not only on the conformational motions of biological systems, but also on the potential governing forces of conformational dynamics (transient interactions, chemical and physical origins, thermodynamic properties). New developments in computational simulations will greatly enhance our understanding of how these molecules function in various biological events.
Download or read book Protein Folding written by Victor Muñoz and published by Humana. This book was released on 2022-12-14 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides comprehensive protocols on experimental and computational methods that are used to study probe protein folding reactions and mechanisms. Chapters divided into five parts detail protein engineering, protein chemistry, experimental approaches to investigate the thermodynamics and kinetics of protein folding transitions, probe protein folding at the single molecule, analysis and interpretation of computer simulations, procedures and tools for the prediction of protein folding properties. Written in the format of the highly successful Methods in Molecular Biology series, each chapter includes an introduction to the topic, lists necessary materials and reagents, includes tips on troubleshooting and known pitfalls, and step-by-step, readily reproducible protocols. Authoritative and cutting-edge, Protein Folding: Methods and Protocols aims to be a useful practical guide to researches to help further their study in this field.
Download or read book Advanced 3D Printed Systems and Nanosystems for Drug Delivery and Tissue Engineering written by Lisa C. du Toit and published by Elsevier. This book was released on 2020-03-08 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced 3D-Printed Systems and Nanosystems for Drug Delivery and Tissue Engineering explores the intricacies of nanostructures and 3D printed systems in terms of their design as drug delivery or tissue engineering devices, their further evaluations and diverse applications. The book highlights the most recent advances in both nanosystems and 3D-printed systems for both drug delivery and tissue engineering applications. It discusses the convergence of biofabrication with nanotechnology, constructing a directional customizable biomaterial arrangement for promoting tissue regeneration, combined with the potential for controlled bioactive delivery. These discussions provide a new viewpoint for both biomaterials scientists and pharmaceutical scientists. Shows how nanotechnology and 3D printing are being used to create systems which are intelligent, biomimetic and customizable to the patient Explores the current generation of nanostructured 3D printed medical devices Assesses the major challenges of using 3D printed nanosystems for the manufacture of new pharmaceuticals
Download or read book Cosmetic Science and Technology Theoretical Principles and Applications written by Kazutami Sakamoto and published by Elsevier. This book was released on 2017-03-03 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cosmetic Science and Technology: Theoretical Principles and Applications covers the fundamental aspects of cosmetic science that are necessary to understand material development, formulation, and the dermatological effects that result from the use of these products. The book fulfills this role by offering a comprehensive view of cosmetic science and technology, including environmental and dermatological concerns. As the cosmetics field quickly applies cutting-edge research to high value commercial products that have a large impact in our lives and on the world's economy, this book is an indispensable source of information that is ideal for experienced researchers and scientists, as well as non-scientists who want to learn more about this topic on an introductory level. Covers the science, preparation, function, and interaction of cosmetic products with skin Addresses safety and environmental concerns related to cosmetics and their use Provides a graphical summary with short introductory explanation for each topic Relates product type performance to its main components Describes manufacturing methods of oral care cosmetics and body cosmetics in a systematic manner
Download or read book Encapsulation of Active Molecules and Their Delivery System written by Shirish Sonawane and published by Elsevier. This book was released on 2020-03-24 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: Encapsulation of Active Molecules and Their Delivery System covers the key methods of preparation of encapsulation, as well as release mechanisms and their applications in food, biotechnology, metal protection, drug delivery, and micronutrients delivery in agriculture. The book also provides real-life examples of applications in food and other industries. Sections encompasses (i) Synthesis and characterization methods of micro- and nanocarriers as the delivery systems, (ii) Up-to-date encapsulation techniques in the areas of pharmaceuticals, nutraceuticals and corrosion, (iii) The release methods of the encapsulated materials, and (iv) Industry perspectives, including scale up of the processes. Focuses on encapsulation processes in chemical and materials engineering and biotechnology Provides a relevant resource for the pharmaceutical and food industries Presents wide coverage on the entrapment of molecules that scales-up to industrial sized needs
Download or read book Molecular Diagnostics written by Lela Buckingham and published by F. A. Davis Company. This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first text on molecular diagnostics specifically designed for clinical laboratory science programs is back! This exceptional resource introduces the fundamentals of nucleic acid, as well as more advanced concepts. With a focus on the application of molecular concepts in the clinical laboratory to diagnosis diseases, the 2nd Edition includes important updates and improvements to keep up with the rapidly developing field. Inside youll find in-depth explanations of the principles of molecular-based assays as well as reference material, trouble-shooting tips for the laboratory, and discussions that emphasize the continuing emergence of new diagnostic technologies.
Download or read book Complex Magnetic Nanostructures written by Surender Kumar Sharma and published by Springer. This book was released on 2017-04-04 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a detailed discussion of the complex magnetic behavior of magnetic nanosystems, with its myriad of geometries (e.g. core-shell, heterodimer and dumbbell) and its different applications. It provides a broad overview of the numerous current studies concerned with magnetic nanoparticles, presenting key examples and an in-depth examination of the cutting-edge developments in this field. This contributed volume shares the latest developments in nanomagnetism with a wide audience: from upper undergraduate and graduate students to advanced specialists in both academia and industry. The first three chapters serve as a primer to the more advanced content found later in the book, making it an ideal introductory text for researchers starting in this field. It provides a forum for the critical evaluation of many aspects of complex nanomagnetism that are at the forefront of nanoscience today. It also presents highlights from the extensive literature on the topic, including the latest research in this field.
Download or read book Handbook of Cosmetic Science and Technology written by André O. Barel and published by CRC Press. This book was released on 2009-03-03 with total page 890 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited by a team of experienced and internationally renowned contributors, the updated Third Edition is the standard reference for cosmetic chemists and dermatologists seeking the latest innovations and technology for the formulation, design, testing, use, and production of cosmetic products for skin, hair, and nails.New features in the Third Editi
