Дисертації з теми "Fluorescence sensing"
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Hussain, Faeiza. "Fluorescence-based glucose sensing." Thesis, King's College London (University of London), 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.417288.
Повний текст джерелаDandin, Marc Péralte. "Towards integrated fluorescence sensing." College Park, Md.: University of Maryland, 2007. http://hdl.handle.net/1903/7811.
Повний текст джерелаThesis research directed by: Dept. of Electrical and Computer Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
Nagl, Stefan. "Fluorescent multiple chemical sensing using time-domain fluorescence lifetime imaging." kostenfrei, 2008. http://www.opus-bayern.de/uni-regensburg/volltexte/2008/996/.
Повний текст джерелаZhou, Xiaobo. "Design, synthesis and sensing properties of chiral amine-based fluorescent probes." HKBU Institutional Repository, 2012. https://repository.hkbu.edu.hk/etd_ra/1442.
Повний текст джерелаdos, Santos Almeida Carina Marisa. "Nanomaterials for intracellular fluorescence imaging and sensing." Thesis, Imperial College London, 2016. http://hdl.handle.net/10044/1/45498.
Повний текст джерелаEvans, Nicholas David. "Fluorescence-based non-invasive glucose sensing for diabetes." Thesis, King's College London (University of London), 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.416007.
Повний текст джерелаCabell, Larry Allen. "Chemosensors and competition sensing assays /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.
Повний текст джерелаFrey, Eric W. "Fluorescence-Based Calcium Ion Sensing at High Hydrostatic Pressures." Miami University Honors Theses / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=muhonors1209176599.
Повний текст джерелаBlagoi, Gabriela. "Fluorescence resonance energy transfer (FRET) based sensors for bioanalysis." ScholarWorks@UNO, 2004. http://louisdl.louislibraries.org/u?/NOD,146.
Повний текст джерелаTitle from electronic submission form. "A dissertation ... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Chemistry."--Dissertation t.p. Vita. Includes bibliographical references.
Kuwana, Eddy. "Measurement and model assessment of fluorescence lifetime sensing in multiply scattering media." Diss., Texas A&M University, 2003. http://hdl.handle.net/1969.1/2209.
Повний текст джерелаWilliams, Alice E. "Time resolved fluorescence and pH sensing studies of electropolymerised 5-substituted indoles." Thesis, University of Edinburgh, 2005. http://hdl.handle.net/1842/14666.
Повний текст джерелаKateklum, Rutjaphan. "Fiber optic fluorescence pH sensing for biomedical applications : theoretical and experimental studies." Thesis, Bourgogne Franche-Comté, 2017. http://www.theses.fr/2017UBFCD048.
Повний текст джерелаOrganic functions of the human body are linked to biological constants. Variations of these constants induce pathological troubles. Among these constants, the pH is the central subject of this PhD work. In living beings, biological functions are related to either acid or alkaline constants. Indeed, the action of a protein depends on the surrounding pH. An inadequate value of the pH makes the proteins non active which is deleterious for the organism. There exist a need for pH sensors which can be used in the human body for clinical applications (macroscopic scale), on cells in culture for biology researches (mesoscopic scale) or at a cell membrane level for more fundamental studies (microscopic scale). Among the wide range of technologies potentially useful for these applications, fiber optic fluorescence pH sensing offers the possibility to be adapted to the three above mentioned dimensional scales. This PhD dissertation addresses these constraints by studying fluorescence fiber optics pH sensors using two kind of pH indicators: SNARF and fluorescein. Together with these experimental studies, mathematical descriptions of the fluorescence properties of these indicators are proposed. They allow progressing towards calibration free pH sensing
Dalzell, Craig John. "Two-photon excited fluorescence and applications in distributed optical fibre temperature sensing." Thesis, University of Strathclyde, 2011. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=17062.
Повний текст джерелаYushchenko, Dmytro. "Synthesis, spectroscopic study and application of ratiometric fluorescent dyes for apoptosis sensing and protein labelling." Strasbourg 1, 2007. http://www.theses.fr/2007STR13070.
Повний текст джерелаBakker, Jimmy W. P. "New methodology for optical sensing and analysis." Licentiate thesis, Linköping University, Linköping University, Applied Optics, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-5670.
Повний текст джерелаThis thesis describes the research I have done, and partly will do, during my time as a PhD student in the laboratory of Applied Optics at Linköping University. Due to circumstances beyond the scope of this book, this incorporates three quite different projects. The first two, involving gas sensing and measuring on paper with ellipsometry, have been discontinued, whereas the third one, measuring fluorescence with a computer screen and web camera, is in full progress and will be until I complete my studies.
Thus the purpose of this work also has several aspects. Partly, it describes performed research and its results, as well as theoretical background. On the other hand, it provides practical and theoretical background necessary for future work. While the three projects are truly quite different, each of them has certain things in common with each of the other. This is certainly also true for the necessary theory. Two of them involve spectroscopic ellipsometry, for example, while another pair needs knowledge of color theory, etc. This makes it impossible to separate the projects, despite of their differences. Hopefully, these links between the different projects, connecting the different chapters, will make this work whole and consistent in its own way.
Report code: LiU-TEK-LIC-200 4-19. On the day of the public defence the status of article I was: In press and the status of article III was: Manuscript and has a new title. The old title was Computer screen photo-assisted spectroscopic fluorimetry.
Pham, Xuan Qui. "New Optical Sensing for the Detection of Toxic Cations : Cesium, Uranyl and Arsenic." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLN005.
Повний текст джерелаThis thesis focuses on the synthesis, photophysical and complexation studies of fluorescent molecules for the selective detection of toxic cations such as cesium, uranyl and arsenic. Firstly, two new fluorescent sensors Calix-COU-P and Calix-COU-Benz-CN for cesium cations based on Calix[4]arene-crown-6 and coumarin fluorophore were successfully synthesized. For Calix-COU-P, a remarkable fluorescence enhancement and a red shift in absorption were observed due to the complexation with cesium cation in water. Good detection limits (0.77 µM) together with an excellent selectivity towards cesium were observed, demonstrating that Calix-COU-P could be an outstanding sensor for the detection of cesium cation in water. Calix-COU-Benz-CN possesses exceptional photophysical properties in an organoaqueous solution with intense visible absorption and emission bands thanks to benzothiazole and cyano groups. The addition of cesium cation to Calix-COU-Benz-CN offered noticeable blue shifts of the absorption spectra and considerably enhanced the emission intensity. The kinetic study of the complexation between Calix-COU-Benz-CN and Cs+ by stopped-flow experiments showed a rapid kinetic at small concentrations of cations and a lower kinetic at higher concentrations (> 10 mM). Calix-COU-Benz-CN was then incorporated into a microfluidic device. The voltage signals, which are proportional to the fluorescence intensity, were monitored continuously at various cesium concentrations. A calibration curve which represents the fluorescence intensity as a function of cesium cation concentration gives a value of detection limit up to 2.0 µM. This value is only slightly higher than the detection limit obtained by fluorescence titration (1.67 µM), which suggests that the microfluidic device is capable to provide good sensitivity towards targeted ion for real-world applications. Furthermore, two analogous compounds Calix-DOP and Calix-DOP-P containing the same complexing entity were also synthesized and grafted onto magnetic nanoparticles in order to obtain a functionalized material for the decontamination of the water containing radioactive cesium. The preliminary study shows that functionalized nanoparticles could efficiently sequester cesium ions from contaminated water.Afterward, to develop new sensors for the detection of uranyl cations, a series of salicylaldehyde azine derivatives have been synthesized and characterized. Their aggregation induced emission properties were studied. In water/acetonitrile solvent, compounds U1 and U2 exhibited strong fluorescence upon aggregation while compound U3 did not aggregate and stayed in solution as well-dispersed molecules. Owning to oxygen and nitrogen binding sites, the molecules could complex uranyl ions and induced fluorescence quenching. In our study, it was interesting to understand that the effect of uranyl was somewhat more destructive rather than constructive to the aggregation. The most obvious quenching effect was observed for the aggregates of U2 in water/acetonitrile 60:40. The emission quenching was explained by aggregate-breaking processes, that the emitting aggregates could be destroyed by the complexation with uranyl cation. The proposed mechanism was further supported by dynamic light scattering and scanning electron microscope experiments. Compound U2 showed good selectivity towards uranyl over lanthanides and other common cations. The sensor could detect uranyl up to ppb scale.Finally, synthesis and studies of new sensors for the detection of arsenic ion were also discussed. A series of fluorescent sensors bearing cysteine moiety was synthesized and their complexing properties for arsenic were studied. Furthermore, gold nanoparticles which were modified by cysteine, glutathione and dithiothreitol were synthesized. The complexation of arsenic ion with these modified gold nanoparticles was studied and discussed. A perspective for further development of arsenic sensors was proposed
Matthews, Alison Mary. "High resolution spectral remote sensing of phytoplankton in the coastal zone." Thesis, University of Southampton, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241275.
Повний текст джерелаFuchs, Eran 1963. "Underwater in situ optical measurements and coral fluorescence for shallow water remote sensing." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/38189.
Повний текст джерелаShuai, Yun. "Improved On-chip Fluorescence Detection and Oxygen Sensing using Organic Thin Film Devices." University of Cincinnati / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1243306326.
Повний текст джерелаYang, Wanggui. "Molecular recognition of [pi]-conjugated fluorophores for supramolecular nanostructures and bio-sensing applications." HKBU Institutional Repository, 2012. https://repository.hkbu.edu.hk/etd_ra/1402.
Повний текст джерелаInal, Sahika. "Responsive polymers for optical sensing applications." Phd thesis, Universität Potsdam, 2013. http://opus.kobv.de/ubp/volltexte/2014/7080/.
Повний текст джерелаAls Reaktion auf bestimmte äußere Stimuli ändern bestimmte wasserlösliche Polymere reversibel ihren physikalischen Zustand. Dieser Vorgang kann mithilfe von Fluorophoren, die in die Polymerstrukturen eingebaut werden und deren Fluoreszenzeigenschaften vom Polymer¬zustand abhängen, detektiert werden. Diese Idee ist der Ausgangspunkt der vorliegenden Arbeit, die sich damit beschäftigt, wie äußerlich induzierte Änderungen der Löslichkeit solcher Polymere mit kovalent gebundenen Fluorophoren in Wasser in ein deutlich messbares Fluoreszenzsignal übersetzt werden können. Dazu werden photophysikalische Phänomene wie Fluoreszenz-Resonanz¬energie¬transfer und Solvatochromie ausgenutzt. In Kombination mit einem responsiven Polymergerüst wird es möglich, verschiedene Stimuli wie Lösungs¬temperatur oder Ionenstärke, oder auch Assoziation-Dissoziation Reaktionen mit anderen Makromolekülen oder biochemische Bindungs¬reaktionen über die Änderung von Fluorezenz¬farbe bzw. –Intensität autonom mit bloßem Auge zu detektieren. Unter anderem wurde ein wässriger ratiometrischer Temperatur- und Salzsensor entwickelt, der auf der komplexen supramolekularen Struktur eines thermoresponsiven Copolymers und eines thiophenbasierten konjugierten Polyelektrolyts beruht. Die Anbindung solvato¬chromer Fluorophore erlaubte den empfindlichen Nachweis einer Temperatur¬änderung oder des Vorhandenseins von Analyten. Komplexere Phänomene wie das kompetitive Anbinden von Analyten ließen sich hochempfindlich steuern und auslesen, indem gleichzeitig die Sensitivität dieser Polymeren gegenüber der Temperatur und spezifischen Antikörpern ausgenutzt wurde. Überraschenderweise wiesen die hier untersuchten thermoresponsiven Polymere wie poly-N-isopropylacrylamid (pNIPAm) oder poly-Oligoethylenglykolmethacrylate (pOEGMA) große Unterschiede bzgl. ihrer responsiven optischen Eigenschaften auf. Dies erforderte eine ausführliche Charakterisierung des Fluoreszenz- und Aggregationsverhaltens, unter- und oberhalb des Phasenübergangs, im Bezug auf die chemische Struktur. Ein Ergebnis war, dass alle drei Polymertypen sehr ähnliche temperaturabhängige makroskopische Absorptionseigenschaften aufweisen, während sich die Eigenschaften auf molekularer Ebene, wie der Hydratisierungsgrad oder die intermolekulare Polymerkettenaggregation, bei diesen Polymeren sehr unterschiedlich. Diese Arbeit zeigt damit anhand zweier sehr etablierter thermoresponsiver Polymere, nämlich pNIPAm und pOEGMA, das die chemische Struktur entscheidend für den Einsatz dieser Polymere in fluoreszenzbasierten Sensoren ist. Diese Ergebnisse haben große Bedeutung für die gezielte Entwicklung von Polymermaterialien für fluoreszenzbasierte Assays.
Upamali, Karasinghe A. Nadeeka. "Carbazole-Based, Self-Assembled, Π-Conjugated Systems As Fluorescent Micro And Nanomaterials - Synthesis, Photophysical Properties, Emission Enhancement And Chemical Sensing". Bowling Green State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1323099511.
Повний текст джерелаZarco-Tejada, Pablo J. "Hyperspectral remote sensing of closed forest canopies, estimation of chlorophyll fluorescence and pigment content." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ59161.pdf.
Повний текст джерелаSakakibara, Reyu. "Electrochemical modulation of fluorescence of nitrogen vacancy centers in nanodiamonds for voltage sensing applications." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/97766.
Повний текст джерелаThis electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 105-112).
The nitrogen vacancy (NV) color center in diamond has been used to sense environmental variables such as temperature and electric and magnetic fields. Most sensing protocols depend on the optically detectable magnetic resonance of the negatively charged NV- spin state. As such, fluctuations in the NV charge state present a challenge for NV- spin-based sensing. This thesis discusses the electrochemical modulation of NV charge state and fluorescence as the basis for an alternative sensing scheme. An externally applied electrochemical potential shifts the occupation probabilities of the NV in each charge state, which manifest as changes in NV fluorescence intensity and emission spectra. In this thesis, the voltage dependence of fluorescence in high pressure high temperature nanodiamonds is demonstrated in an electrochemical cell. Following this, the mechanisms for NV response to externally applied electrical bias are investigated in other electrochemical cell morphologies, capacitors, and interdigitated electrode arrays. Finally, a design of an optical microscope setup for future studies of NV sensing in nanodiamond is outlined.
by Reyu Sakakibara.
S.M.
Tyndall, David. "CMOS system for high throughput fluorescence lifetime sensing using time correlated single photon counting." Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/12238.
Повний текст джерелаKoutnik, Petr. "First Supramolecular Fluorescence-Based Assay for Carbonic Anhydrase Inhibitors." Bowling Green State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1471261858.
Повний текст джерелаCampbell, Ian. "Development of optical based characterisation and detection methods for quantitative and qualitative assessment of phytoplankton in their natural environment." Thesis, Robert Gordon University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325446.
Повний текст джерелаAkdeniz, Ali. "Sensing of Enantiomeric Excess in Chiral Carboxylates." Bowling Green State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1465223828.
Повний текст джерелаPoon, Chung Yan. "Nanoparticles assisted disease biomarkers sensing by microscopic and spectrometric methods." HKBU Institutional Repository, 2016. https://repository.hkbu.edu.hk/etd_oa/300.
Повний текст джерелаXu, Di. "Multifunctional cyanine fluorophores for cellular imaging and sensing in vivo and beta-amyloid imaging and aggregation inhibition." HKBU Institutional Repository, 2017. https://repository.hkbu.edu.hk/etd_oa/382.
Повний текст джерелаWinkler, Amy. "OPTICAL METHODS FOR MOLECULAR SENSING: SUPPLEMENTING IMAGING OF TISSUE MICROSTRUCTURE WITH MOLECULAR INFORMATION." Diss., The University of Arizona, 2010. http://hdl.handle.net/10150/195176.
Повний текст джерелаRenard, Laëtitia. "Nanostructured tin-based materials : sensing and optical applications." Thesis, Bordeaux 1, 2010. http://www.theses.fr/2010BOR14183/document.
Повний текст джерелаClass II hybrid materials were prepared from ditin hexaalkynides. Two families of precursors, including either hydrocarbon or oligothiophene-based spacers, were obtained and led by the sol-gel process to self-assembled organotin-based hybrid materials made of planes of oxide separated by organic bridges. Thus, the rigid thienyl spacer gave rise to a “pseudo-lamellar” structure that showed a monomer emission band with a rather small red-shift compared with to the emission of the precursor in solution. However more disordered thienyl xerogels led to broad emission features assigned to excimer or dimer formation. Moreover, thin films containing alkylene- and arylalkylene bridged have been prepared and showed a “pseudoparticulate” porous morphology and a short-range hierarchical order in the organic-inorganic SnOx pseudoparticles. Unexpectedly these hybrid thin films detect hydrogen gas at a temperature as low as 50 °C at the 200-10000 ppm level. From these hybrid thin films, crystalline tin dioxide (SnO2) were prepared by a thermal post-treatment. As expected, cassiterite SnO2 films detected H2 and to a less extent CO with a best operating temperature comprised between 300 and 350 °C
Abdul-Majeed, Shakila. "Regulation of Fluid-Shear Stress Sensing by Mechanosensory Primary Cilia." University of Toledo Health Science Campus / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=mco1310083302.
Повний текст джерелаYang, Xiaochuan. "Design and Synthesis of Boronic Acid-Modified Nucleotides for Fluorescent Sensing and Cell Imaging." Digital Archive @ GSU, 2009. http://digitalarchive.gsu.edu/chemistry_diss/39.
Повний текст джерелаRhoul, Camill. "Simulation de la fluorescence de la végétation mesurée depuis une orbite géostationnaire." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLX097/document.
Повний текст джерелаLe travail de cette thèse porte sur l’étude de la télédétection de la fluorescence chlorophyllienne avec un instrument imageur passif depuis une orbite géostationnaire pour le suivi de l’état physiologique de la végétation. Le concept instrumental est étudié théoriquement pour aboutir à la création d’uninstrument et à sa validation. La possibilité de mesurer des cycles diurnes de la fluorescence végétale depuis une orbite géostationnaire est évaluée à l’aide de simulations qui permettent de dresser les spécifications d’un instrument spatial.L’instrument imageur passif mesure dans la bande O 2 -A d’absorption atmosphérique. Il utilise une roue à filtres interférentiels dont la fonction de transmittance varie avec l’angle d’incidence des rayons les traversant. L’étude théorique a permis d’optimiser le placement spectral des filtres en vuede minimiser l’incertitude liée à la mesure de fluorescence.Grâce à la comparaison des mesures de l’instrument imageur avec d’autres instrument de mesure de la fluorescence, l’instrument et son concept instrumental ont été validés. Néanmoins, à cause d’effets de structure de la végétation intervenant sur le transfert radiatif de la fluorescence et de la lumière solaire au sein du couvert végétal, ces mesures ont confirmé la difficulté d’estimer le rendement de fluorescence de la végétation à partir des flux de fluorescence mesurés.Une étude théorique menée grâce à une modélisation du transfert radiatif de la fluorescence dans le couvert végétal jusqu’au capteur a permis d’expliquer la difficulté à retrouver le rendement de fluorescence à partir des flux. Cette étude a mis en avant l’accessibilité du rendement pour des couverts à fortedensité de feuilles et lorsque la distribution de l’orientation des feuilles est centrée sur l’horizontale.Cette modélisation a été étendue pour simuler des mesures spatiales dans le but d’étudier la possibilité de mesurer la fluorescence depuis une orbite géostationnaire dans les bandes O 2 -A et O 2 -B. Les résultats de ces simulations montrent la possibilité de mesurer préférentiellement dans la bandeO 2 -A avec une faible incertitude sur les flux de fluorescence et une bonne répétabilité temporelle pour le suivi des cycles diurnes de la fluorescence de la végétation
Bueno, Hernandez Diana. "Optical and electrochemical sensing methods for the detection of food contaminants." Thesis, Perpignan, 2016. http://www.theses.fr/2016PERP0044/document.
Повний текст джерелаA portable and low cost fluorescence set-up to quantify the concentrations of Ochratoxin A(OTA) in real samples was developed. The detection through the device consist of anultraviolet light at 365 nm and an photo detector or a CMOS sensor controlled by anexecutable interface designed in LabVIEW or MATLAB. It has been reported that OTA is naturally fluorescent, so it allows the user to get a UV LED to excite the sample, get a value involtage when a photodetector is employed or a photograph of the OTA under excitationconditions, and process that image in order to predict the concentrations of the sample. Tocapture and process the image, in an automatically manner, the system was completely basedon the Red, Green and Blue (RGB) components. The linearity for OTA obtained in the rangeof concentrations corresponds to 2-40 µg/L. Immunoaffinity columns (IAC) and molecularimprinted polymer columns (MIP) were used with cocoa, beer and wine samples. Theobtained results were cross-validated using chromatographic method such as HPLC and theFluoroskan equipment. The developed setup is easy to use, economical and portable. Besides,the use of new tendencies was included such as employ the smartphone to detect OTA and thecreation of an APP. Fluorescence image data from the smartphone camera are analyzed by apersonal computer and presented in RGB components, where the image is sent to thecomputer by WIFI and the smartphone is used as a power source too. Finally, an APP forandroid system was created to capture the image and provides the RGB values. At the end, theuse of image processing to quantify the OTA in real samples without incorporated IAC or MIPcolumns to extract the mycotoxin from a complex solution, employing colorimetric techniquesand color analysis
Vonnegut, Chrisgen. "Design and Application of Fluorescent Sensing Scaffolds Based upon and Originating from Conjugated Aryl-ethynyl Systems." Thesis, University of Oregon, 2016. http://hdl.handle.net/1794/20413.
Повний текст джерелаAtherton, Jon Mark. "Multiscale remote sensing of plant physiology and carbon uptake." Thesis, University of Edinburgh, 2012. http://hdl.handle.net/1842/6219.
Повний текст джерелаMuñoz, Resta Ignacio. "Pyrylium salts for bioimaging, sensing and solid-state emission." Doctoral thesis, Universitat Jaume I, 2021. http://dx.doi.org/10.6035/14104.2021.782064.
Повний текст джерелаLa tesis titulada "Pyrylium salts for bioimaging, sensing and solid-state emission" se encuentra estructurada en 7 capítulos en los que se desarrollan nuevas aplicaciones para compuestos de pirilio. Dos capítulos se corresponden con aplicaciones biológicas, en los que se lleva a cabo la síntesis y caracterización de moléculas que son utilizadas como sondas mitocondriales y sensores de óxido nítrico. Un tercero introduce una aplicación analítica, donde los pirilios se utilizan para el sensado de agua en solventes orgánicos. Y en un cuarto se plantea un enfoque desde la óptica y se presenta el desarrollo de una familia de compuestos como emisores en estado sólido. Se concluye que, debido a su facilidad sintética y sus buenas propiedades fotofísicas, el uso de sales de pirilio puede continuar expandiéndose hacia campos en los que no han sido completamente explotados, como el bioanálisis.
Programa de Doctorat en Ciències
Finegan, Timothy Michael. "Remote three-dimensional temperature sensing using planar laser induced fluorescence : development and applications to microwave heated liquids." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/28356.
Повний текст джерелаIncludes bibliographical references.
Microwave heating is an important technology that has been hampered in application by difficulties in measuring temperatures and temperature distributions during the microwave heating process. This thesis describes the development of a 3D imaging fluorescence thermometry system that was used to examine temporal and spatial variations in temperature within various aqueous solutions during their heating by microwave irradiation. The work provides one of the first experimentally-determined temperature maps for a system undergoing microwave heating. A 3D thermometry instrument was built based on the principles of Planar Laser Induced Fluorescence (PLIF) imaging. Temperatures were optically determined from ratiometric measurements of the fluorescence from a pair of molecular probes. A Dextran polymer labeled with Rhodamine B was used as a temperature-sensitive probe that operates between 20 and 60 ⁰C. A second temperature-insensitive probe, Rhodamine 110, was used to monitor changes in the laser emission intensity. A dual camera fluorescence detector system was employed to capture a 2D x-y plane at a specified z-axis position. A dichroic mirror and optical filters were used to separate the fluorescence signals from the two probes. The instrument was able to achieve a spatial resolution of 0.2 mm in x-y plane, a 5 mm spatial resolution in z-axis, and a temperature resolution of ±1.6 ⁰C. The 3D imaging thermometry instrument was modified for investigations into microwave heating. A microwave plasma applicator was adapted for heating experiments with water and salt solutions at concentrations ranging from 0-0.5 M.
(cont.) heating with reduced convective flows. The dynamics of microwave heating were captured in images with a 0.5 second interval. Microwave heating was observed at node positions in the microwave cavity and varied with the dielectric properties of the heated medium. The experimental results for initial heating were successfully modeled by 2D calculations of the electric field in the microwave cavity. 3D experiments were performed on both pure water sample and on a 0.1 M salt solution. Due to the rapid rate of microwave heating, the 3D experiments were conducted by repeating experiments at different positions in the microwave cavity under the same starting conditions and heating profiles. The simulations of the 2D electric fields in the microwave cavity suggest that the electric field intensity varied little across the z-axis positions. Experiments at different z-axis positions in the cavity had identical profiles within the error of the experiments.
by Timothy M. Finegan.
Ph.D.
Huang, Liming. "Stem-loop probe for sensing unlabeled nucleic acids and design of perylene dicarboxylic imides as multi-functional materials." abstract, 2008. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3339121.
Повний текст джерелаBürling, Kathrin [Verfasser]. "Potential of fluorescence techniques with special reference to fluorescence lifetime determination for sensing and differentiating biotic and abiotic stresses in Triticum aestivum L. / Kathrin Bürling. Landwirtschaftliche Fakultät." Bonn : Universitäts- und Landesbibliothek Bonn, 2011. http://d-nb.info/1016599897/34.
Повний текст джерелаFinkelmeier, Nils. "Synthesis and Fluorescence Properties of Anthracene Derivatives and their Metal Complexes." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2013. http://hdl.handle.net/11858/00-1735-0000-0023-994A-7.
Повний текст джерелаUzunova, Vanya D. [Verfasser]. "Thermodynamic and fluorescence-based investigations of Host-Dye reporter pairs for sensing of biological analytes / Vanya D. Uzunova." Bremen : IRC-Library, Information Resource Center der Jacobs University Bremen, 2013. http://d-nb.info/1037013646/34.
Повний текст джерелаAustin, Edward Alfred Denzil. "Studies of measurement techniques for indirect chemical sensing based on fluorescence spectroscopy and applications for fibre-optic sensors." Thesis, University of Southampton, 2002. https://eprints.soton.ac.uk/50196/.
Повний текст джерелаShehata, Nader. "Design of optical characteristics of ceria nanoparticles for applications including gas sensing and up-conversion." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/49574.
Повний текст джерелаPh. D.
Dong, Wenyue [Verfasser]. "The Design and Synthesis of Conjugated Polymers with Aggregation-Induced Emission and Their Application in Fluorescence Sensing / Wenyue Dong." Wuppertal : Universitätsbibliothek Wuppertal, 2015. http://d-nb.info/1076929885/34.
Повний текст джерелаKanyuk, M., A. P. Demchenko, I. Díez, and R. H. A. Ras. "Fluorescent Few-Atom Clusters of Silver Formed in Organic Solvents on Polymeric Supports." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/35122.
Повний текст джерелаOrth, Antony G. "Imaging Pressure, Cells and Light Fields." Thesis, Harvard University, 2014. http://dissertations.umi.com/gsas.harvard:11349.
Повний текст джерелаEngineering and Applied Sciences
Leufen, Georg [Verfasser]. "Sensing the response of sugar beet and spring barley to abiotic and biotic stresses with proximal fluorescence techniques / Georg Leufen." Bonn : Universitäts- und Landesbibliothek Bonn, 2016. http://d-nb.info/1095099078/34.
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