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Book Design Synthesis and Evaluation of Fluorescent Probes for Biological Applications

Download or read book Design Synthesis and Evaluation of Fluorescent Probes for Biological Applications written by Andrea Fin and published by . This book was released on 2012 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Design Synthesis and Applications of Fluorescent and Electrochemical Probes

Download or read book Design Synthesis and Applications of Fluorescent and Electrochemical Probes written by Giri K. Vegesna and published by . This book was released on 2014 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbohydrate and protein interactions are key for many biological processes, such as viral and bacterial infections, cell recognition and adhesion, and immune response. Among several analytical techniques aimed to study these interactions, electrochemical biosensing is more efficient due to its low cost, ease of operation, and possibility for miniaturization. During my Ph.D., I synthesized mannose bearing aniline molecule which is successfully tested as electrochemical bio sensor. A Ferrocene-mannose conjugate with an anchoring group is synthesized, which can be used as a potential electrochemical biosensor.

Book Synthesis and Characterization of Novel Fluorescent Sensors Based on Terpyridine Benzoxazole and Benzothiazole Chromophores

Download or read book Synthesis and Characterization of Novel Fluorescent Sensors Based on Terpyridine Benzoxazole and Benzothiazole Chromophores written by Xiaoman Bi and published by . This book was released on 2017 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past few decades, there has been significant interest in developing fluorescent probes, because they are useful tools for biological studies. As effective analytical techniques, fluorescent probes utilize distinct advantages offered by fluorescence detection in terms of sensitivity, selectivity, and fast response time. When fluorescent probes interact selectively with target molecules, ions or biological specimens, they can generate large optical responses. Since most ions or molecules, such as Zn2+, Ca2+, or pyrophosphate ion (PPi), are non-fluorescent, chemosensors having analyte binding-triggered fluorescence are appealing in many fields, like analytical chemistry, clinical biochemistry, medicine, and environmental science.This dissertation is devoted to the design, synthesis, and characterization of novel fluorescent sensors for Zn2+ and its associated applications. Chapter II of this dissertation presents several novel terpyridine-based fluorescent sensors with different substituents affecting the electronic and steric nature of the terpyridine (tpy) fluorophore. Sensors are designed to establish the correlation between sensor structure and its photophysical properties. Low temperature fluorescence is used to evaluate the essential role of intramolecular charge transfer (ICT) in zinc binding-induced fluorescence changes. The tpy molecular fragment has a relatively large [pi]-conjugated system which enables the potential [pi-pi] interaction between two tpy platforms and affects the fluorescence of tpy ligands. Chapter III introduces a dimeric tpy ligand containing two tpy fragments connected via a meta-phenylene unit. The detailed spectroscopic study shows that this ligand displays an attractive fluorescence turn-on, in sharp contrast to mono(tpy) ligand that shows fluorescence quenching upon binding Zn2+. The result suggests the existence of delicate structural influences on fluorescence of tpy derivatives.Chapter IV is devoted to 2-(2'-hydroxyphenyl)-1,3-benzoxazole (HBO) and 2-(2'-hydroxyphenyl)-1,3-benzothiazole (HBT) derivatives featured with a structural potential of excited-state intramolecular proton transfer (ESIPT). The study reveals additional information on the binding of HBO or HBT to metal cations, which aids the sensor design for Zn2+ and PPi detection. The molecular design aims to realize ESIPT process control upon complexation with an analyte. Chapter V is devoted to the synthesis of bis(HBO) derivatives which bind Zn2+ selectively and emit near-infrared (NIR) fluorescence as a consequence of metal ion binding-induced ESIPT turn-on. Preliminary cell stain experiment was conducted and indicated the potential biological applications.

Book Design Synthesis and Application of Ultrastable Rylene Dyes for Fluorescent Labeling of Biomolecules

Download or read book Design Synthesis and Application of Ultrastable Rylene Dyes for Fluorescent Labeling of Biomolecules written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies of organic fluorescent dyes are experiencing a renaissance related to the increasing demands posed by new microscopy techniques for high resolution and high sensitivity. While in the last decade single molecule equipment and methodology has significantly advanced and in some cases reached theoretical limits (e.g. detectors approaching unity quantum yields) unstable emission from chromophores and photobleaching become more and more the bottleneck of the advancement and spreading of single-molecule fluorescence studies. The main goal of this work was the synthesis of fluorophores that are water-soluble, highly fluorescent in an aqueous environment, have a reactive group for attachment to a biomolecule and posses exceptional photostability. An approach towards highly fluorescent, water-soluble and monofunctional perylene-3,4,9,10-tetracarboxdiimide and terrylene-3,4:11,12-tetra carboxidiimide chromophores was presented. A new synthetic strategy for the desymmetrization of perylenetetracarboximides was elaborated; water-solubility was accomplished by introducing sulfonyl substituents in the phenoxy ring. Two strategies have been followed relying on either non-specific or site specific labeling. For this purpose a series of new water-soluble monofunctional perylene and terrylene dyes, bearing amine or carboxy group were prepared. The reactivity and photophysical properties of these new chromophores were studied in aqueous medium. The most suitable chromophores were further derivatized with amine or thiol reactive groups, suitable for chemical modification of proteins. The performance of the new fluorescent probes was assessed by single molecule enzyme tracking, in this case phospholipase acting on phospholipid supported layers. Phospholipase-1 (PLA-1) was labeled with N-hydroxysuccinimide ester functionalized perylene and terrylene derivatives. The purification of the conjugates was accomplished by novel convenient procedure for the removal of unreacted dye from.

Book Design Synthesis and Application of Novel Light Activated Molecular Probes

Download or read book Design Synthesis and Application of Novel Light Activated Molecular Probes written by Megan N. Stanton-Humphreys and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Fluorescent Energy Transfer Nucleic Acid Probes

Download or read book Fluorescent Energy Transfer Nucleic Acid Probes written by Vladimir V. Didenko and published by Springer Science & Business Media. This book was released on 2008-02-04 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluorescent nucleic acid probes, which use energy transfer, include such constructs as molecular beacons, molecular break lights, Scorpion primers, TaqMan probes, and others. These probes signal detection of their targets by changing either the intensity or the color of their fluorescence. Not surpr- ingly, these luminous, multicolored probes carry more flashy names than their counterparts in the other fields of molecular biology. In recent years, fluor- cent probes and assays, which make use of energy transfer, have multiplied at a high rate and have found numerous applications. However, in spite of this explosive growth in the field, there are no manuals summarizing different p- tocols and fluorescent probe designs. In view of this, the main objective of Fluorescent Energy Transfer Nucleic Acid Probes: Designs and Protocols is to provide such a collection. Oligonucleotides with one or several chromophore tags can form fluor- cent probes capable of energy transfer. Energy transport within the probe can occur via the resonance energy transfer mechanism, also called Förster tra- fer, or by non-Förster transfer mechanisms. Although the probes using Förster transfer were developed and used first, the later non-Förster-based probes, such as molecular beacons, now represent an attractive and widely used option. The term “fluorescent energy transfer probes” in the title of this book covers both Förster-based fluorescence resonance energy transfer (FRET) probes and probes using non-FRET mechanisms. Energy transfer probes serve as molecule-size sensors, changing their fluorescence upon detection of various DNA reactions.

Book Handbook of Fluorescent Dyes and Probes

Download or read book Handbook of Fluorescent Dyes and Probes written by R. W. Sabnis and published by John Wiley & Sons. This book was released on 2015-05-05 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: A COMPLETE, UP-TO-DATE RESOURCE OF INFORMATION ON MORE THAN 150 FLUORESCENT DYES AND PROBES Handbook of Fluorescent Dyes and Probes is the most comprehensive volume available on the subject, covering all the available dyes and probes known to date in the literature for uses in various fields. Top dye expert Dr. Ram Sabnis organizes the compounds alphabetically by the most commonly used chemical name. He presents an easy-to-use reference complete with novel ideas for breakthrough research in medical, biological, chemical, color, material, physical and related allied fields. The ease of use of the handbook is further enhanced by various appendixes provided at the end of the book to conveniently and easily locate the dye as per the reader's need. This is the first book to give the CAS registry numbers, chemical structure, Chemical Abstract (CA) index name, all other chemical names, Merck Index number, chemical/dye class, molecular formula, molecular weight, physical form, solubility, melting point, boiling point, pKa, absorption maxima, emission maxima, molar extinction coefficient, and quantum yield of fluorescent dyes and probes, as well as to provide access to synthetic procedures (lab scale and industrial scale) of dyes and probes in a single source. This user-friendly handbook also features references on safety, toxicity and adverse effects of dyes and probes on humans, animals and the environment, including: acute/chronic toxicity aquatic toxicity carcinogenicity cytotoxicity ecotoxicity genotoxocity hematotoxicity hepatotoxicity immunotoxicity marine toxicity microbial toxicity mutagenicity nephrotoxicity neurotoxicity nucleic acid damage oral toxicity phototoxicity phytotoxicity reproductive toxicity skin toxicity Containing imaging/labeling applications, biological/medical applications and industrial applications, Handbook of Fluorescent Dyes and Probes is a convenient, vital resource for industrial and academic researchers, and a valuable desktop reference for medical professionals, lab supervisors, scientists, chemists, biologists, engineers, physicists, intellectual property professionals, students, and professors. Includes all fluorescent dyes & probes known to date and provides a complete, up-to-date library of information in one reference/handbook Includes more than 300 fluorescent dyes & probes organized alphabetically by the commonly used Chemical Name Provides access to synthesis procedures (lab scale and industrial scale) of fluorescent dyes & probes First book to provide references on safety, toxicity and adverse effects of fluorescent dyes and probes on humans, animals, and the environment User-friendly and convenient resource guide for chemical, biological, medical, and intellectual property professionals in a broad range of disciplines

Book Design Synthesis and Application of Novel Conjugated Materials

Download or read book Design Synthesis and Application of Novel Conjugated Materials written by Haichang Zhang and published by Frontiers Media SA. This book was released on 2021-02-11 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Design Synthesis and Characterization of Mechanosensitive Dual Fluorescent Dyes as Potential Probes for Biological Applications

Download or read book Design Synthesis and Characterization of Mechanosensitive Dual Fluorescent Dyes as Potential Probes for Biological Applications written by Susantha Ganegamage and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chapter 3 of this dissertation explores a hypothesis that leverages the seesaw photophysical model for N-aryl (2,3- and 1,8-) naphthalimides. The Heagy group initially developed this model to understand the dual fluorescence effect concerning the electron donor or electron-withdrawing substituents. This study envisions the design and synthesis of novel dual fluorescence molecules for a new class of N-aryl-phenanthridinone dyes. The applied photophysical model further investigates these dyes with a substitution pattern opposite naphthalimide systems. Interestingly, predictive computational modeling shows that the substituent pattern, used previously for 2,3-naphthalimides, relies on these groups getting placed on rings in opposite positions for N-aryl-phenanthridinones. Chapter 4, provides an overall conclusion of the and future directions for both parts of the research. In chapter 5, a complete description of experimental data is provided for the characterization of all the dye systems presented. This data includes a detailed synthesis procedure, characterization, purity analysis by HPLC, absorptivity calculation, fluorescence lifetime measurements, quantum yield determination, biological evaluation and fluorescence titration.

Book Design Synthesis and Evaluation of Fluorescent Small Molecule Probes of Biological Systems

Download or read book Design Synthesis and Evaluation of Fluorescent Small Molecule Probes of Biological Systems written by Michael James DeGrazia and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Fluorescent Probes of Biological Receptors

Download or read book Fluorescent Probes of Biological Receptors written by Barry Elledge and published by . This book was released on 1982 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The Design Synthesis and Spectral Properties Fluorescent Probes for Potassium

Download or read book The Design Synthesis and Spectral Properties Fluorescent Probes for Potassium written by Zia Goolamali and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: