Relevant bibliographies by topics / Solid Surface Fluorescence

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Solid Surface Fluorescence'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Solid Surface Fluorescence"

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Städe, Lars W., Thorbjørn T. Nielsen, Laurent Duroux, Reinhard Wimmer, Kyoko Shimizu, and Kim L. Larsen. "Synthesis and surface grafting of a β-cyclodextrin dimer facilitating cooperative inclusion of 2,6-ANS." Beilstein Journal of Organic Chemistry 11 (April 21, 2015): 514–23. http://dx.doi.org/10.3762/bjoc.11.58.

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A novel β-cyclodextrin (β-CD) dimer was synthesized and surface-grafted by click chemistry onto azide-functionalized quartz surfaces in order to introduce the cooperative features of the β-CD dimer to solid surfaces. Using NMR and fluorescence spectroscopy, it is shown that the free β-CD dimer forms a 1:1 complex with the fluorescent guest molecule, 2-anilinonaphthalene-6-sulfonic acid (otherwise known not to form 1:2 complexes with parent β-CD), with an apparent association constant of 7300 M−1. Further, it is shown using total internal reflection fluorescence spectroscopy that the inclusion of the fluorescent guest into both cavities of the β-CD dimer is maintained when grafted onto a solid surface.
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Rogacheva, Svetlana M., Anna B. Shipovskaya, Anna V. Strashko, Tamara I. Gubina, Elena V. Volkova, and Andrey G. Melnikov. "Polysaccharide Fibers as Matrices for Solid-Surface Fluorescence." International Journal of Polymer Science 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/183413.

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Fibers of cellulose diacetate (CDA) and chitosan (CTS) of polycationic and polybasic forms were tested as matrices for solid-surface fluorescence (SSF) of several fluorescent probes—eosin Y, trypaflavine, and pyrene. The morphology and surface potential of these matrices were examined. The influence of structural and energetic characteristics of the fibrous polysaccharide materials at SSF of the probes was shown. Fluorescence was studied in aqueous solutions of eosin Y and trypaflavine, in water-ethanolic and water-micellar surfactant media of pyrene, before and after dynamic sorption of the dyes on fibers and in the adsorbed state. The surface of CDA fiber was shown to be capable of sorbing trypaflavine from water and pyrene from water-micellar surfactant media of various types, so it can be a promising matrix for SSF of pyrene and trypaflavine and their chemical analogs. The Coulomb interactions were proposed to determine eosin Y and trypaflavine concentration on the surface of CTS matrices and the SSF of these probes. The CTS fibers were permeable to hydrophobic pyrene dissolved in an ethanol-water medium or solubilized in the micelles of ionic surfactants.
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Fu, Qing, Xiaolin Zhang, Peipei Yan, Shichao Wang, Xinzhi Wang, Yao Wang, Linjun Huang, et al. "SPR-Enhanced Fluorescence of Solid Organic Dye Films." Journal of Nanomaterials 2018 (August 23, 2018): 1–9. http://dx.doi.org/10.1155/2018/5268458.

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This paper presents strong fluorescence of spin-coated fluorescent solid organic dye films (SODF) enhanced by surface plasmonic resonance (SPR). In order to manifest the influence of SPR effect on enhancement of organic dye (OD) fluorescence, the organic dye embedded Ag@SiO2 fluorescent films were developed on the glass sheet substrate, in which Ag@SiO2 nanoparticles were embedded in the middle and organic dye was as upper layer. The morphology of the SODFs with and without Ag@SiO2 particles was studied by SEM and EDX, and the tests revealed that the Ag@SiO2 nanoparticles distributed evenly between glass sheet and OD layer. Optical properties were characterized by UV absorption and fluorescence spectroscopy; the lifetime of SODF was tested to discuss the mechanism of SPR enhancement of fluorescence. The results proved that the existence of Ag@SiO2 particles enhanced the fluorescence intensity for 7 times and thus proved the SPR effect for organic dye, especially when the organic dye is the solid films. Therefore, the most important is the creation that the SPR effect of Ag@SiO2 particles works very well under solid organic dye coverage.
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Xu Liang, 许良, 刘红婕 Liu Hongjie, 黄进 Huang Jin, 周信达 Zhou Xinda, 王凤蕊 Wang Fengrui, and 吴卫东 Wu Weidong. "Laser-induced time-resolved solid-surface fluorescence spectra system." High Power Laser and Particle Beams 24, no. 8 (2012): 1961–64. http://dx.doi.org/10.3788/hplpb20122408.1961.

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Balaei, S., and J. J. Aaron. "Solid-surface fluorescence analysis using a fibre-optic sensor." Analytica Chimica Acta 255, no. 2 (December 1991): 305–9. http://dx.doi.org/10.1016/0003-2670(91)80060-7.

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Hartner, K. C., J. W. Carr, and J. M. Harris. "Total Internal Reflection Fluorescence for Adsorbed Probe Molecule Studies of Liquid/Solid Interfacial Environments." Applied Spectroscopy 43, no. 1 (January 1989): 81–87. http://dx.doi.org/10.1366/0003702894201932.

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Total internal reflection fluorescence (TIRF) is developed as a surface selective method to allow the environment of a liquid/solid interface to be probed by fluorescent molecules which are adsorbed from solution. The method has been used to detect pyrene sorbed to an octadecylsilane-derivatized fused-silica plate and resolve its spectral emission so that vibronic intensity ratios can be calculated and the surface environment characterized. Adsorption equilibria of the fluorescent probe to the surface and the depth of penetration of the evanescent excitation beam provide the basis for predicting interference from probe molecules in the solution phase. These predictions were validated by replacing the solution overlaying the alkylated silica interface with saturated vapor and comparing the apparent surface environments.
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Zarybnicka, Lucie, Radka Bacovska, Zuzana Nadvornikova, Numan Almonasy, and Tomas Syrovy. "Application of Fluorescent Label in Polymer Nanofibers." Advances in Materials Science and Engineering 2017 (2017): 1–6. http://dx.doi.org/10.1155/2017/7583245.

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The electrospinning of fluorescent probe polyamide 6 doped by 7H-benzimidazo[2,1-a]benzo[de]isoquinolin-7-on is presented as a model processing photoluminescent nanofibers. The presence of the fluorescent probe in the fiber layers was confirmed by attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR); the surface nanofiber structure was described by high-resolution fluorescence microscope and scanning electron microscope images. The prepared nanofibers with the fluorescent label were further characterized by fluorescence spectroscopy, both in the solid phase and in the solution.
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Alesso, Magdalena, César A. Almeida, María C. Talio, and Liliana P. Fernández. "Metsulfuron-methyl determination in environmental samples by solid surface fluorescence." Microchemical Journal 139 (June 2018): 150–54. http://dx.doi.org/10.1016/j.microc.2018.02.023.

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Rogacheva, Svetlana M., Anna V. Strashko, Tamara I. Gubina, Anna B. Shipovskaya, Elena V. Volkova, Natalia A. Shilova, and Andrey G. Melnikov. "Solid-surface fluorescence of hydrophilic dyes on different polysaccharide matrices." Oriental Journal of Chemistry 30, no. 4 (December 31, 2014): 1557–63. http://dx.doi.org/10.13005/ojc/300414.

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Gautam, Saurabh, and Munishwar N. Gupta. "Solid state fluorescence of proteins in high throughput mode and its applications." F1000Research 2 (March 25, 2019): 82. http://dx.doi.org/10.12688/f1000research.2-82.v2.

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Direct comparison between fluorescence spectra of a sample in solution and solid state form is valuable to monitor the changes in protein structure when it is “dried” or immobilized on a solid surface (for biocatalysis or sensor applications). We describe here a simple method for recording fluorescence emission spectra of protein powders without using any dedicated accessory for solid samples in a high-throughput format. The 96-well plate used in our studies, was coated black from all the sides and the excitation and emission paths are identical and are from the top of the well. These two features minimize scatter and provide fairly noise free spectra. Even then the fluorescence intensity may be dependent upon many factors such as the extent of protein aggregation, morphology and sizes of the protein particles. Hence, (changes in) λmax emission may be a more reliable metric in the case of fluorescence spectra of proteins in the solid state. However, any large changes in the intensity could indicate changes in the microenvironment of the fluorophore. The fluorescence emission spectra were blue-shifted (4 to 9 nm), showed an increase in the intensity for different proteins studied upon lyophilization, and were similar to what has been reported by others using available commercial accessories for solid state samples. After validating that our method worked just as well as the dedicated accessories, we applied the method to compare the fluorescence emission spectra of α-chymotrypsin in solution, precipitated form, and the lyophilized powder form. We further examined the fluorescence emission spectra of green fluorescent protein (GFP) in solution and solid form. We also analyzed fluorescence resonance energy transfer (FRET) between tryptophan (Trp57) and the cyclic chromophore of GFP. These findings pointed towards the change in the microenvironment around the cyclic chromophore in GFP upon lyophilization.
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Dissertations / Theses on the topic "Solid Surface Fluorescence"

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Guler, Nehir. "Spectrofluorimetric Determination Of Selenium After Cloud Point Extraction." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/3/12609458/index.pdf.

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As compared with the concentration in sample when the detection limit of analyte is low, a preconcentration method can be used. In this study, cloud point extraction (CPE) was used as the preconcentration method. The aqueous solutions of nonionic and zwitterionic surfactant materials become cloudy when its temperature reaches the cloud point temperature and analyte collapses with surface active material. The volume of surfactant rich phase is much smaller than the solution volume and therefore a way high preconcentration factor was obtained. For the cloud point extraction of selenite, a fluorimetric ligand, 2,3-diminonaphthalene (DAN) was used and the hydrophobic Se(IV)-DAN complex formed (4,5-benzopiazselenol) was extracted with Triton X-114. The effects of pH, complexation period, reaction temperature, DAN concentration and surfactant concentration on the extraction efficiency were investigated. The extraction efficiency at the optimized conditions was 98 percent. Spectrofluorimetric determination of selenium was performed at excitation and emission wavelegths of 379 nm and 582 nm, respectively. The detection limit, established as 3s /slope where s is the standard deviation of 9 measurements of 0.020 mg/L Se (IV)-DAN complex after 10 fold preconcentration was 3.7 µ
g/L Se. By using solid surface fluorescence measurements detection limit could be reduced down to 1.2 µ
g/L. The obtained detection limits (3.7 and 1.2 µ
g/L) were sufficiently low for detecting selenite in diverse samples. The accuracy of the method was confirmed by the analysis of trace elements in waste water Standard reference material (EnviroMAT- Waste Water LOW EU-L-1). The interference effects of some anions and cations were also tested.
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Nilsson, Jonas. "Design, Synthesis and Characterization of Small Molecule Inhibitors and Small Molecule : Peptide Conjugates as Protein Actors." Doctoral thesis, Linköpings universitet, Organisk Kemi, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-3943.

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This thesis describes different aspects of protein interactions. Initially the function of peptides and their conjugates with small molecule inhibitors on the surface of Human Carbonic Anhydrase isoenzyme II (HCAII) is evaluated. The affinities for HCAII of the flexible, synthetic helix-loop-helix motif conjugated with a series of spacered inhibitors were measured by fluorescence spectroscopy and found in the best cases to be in the low nM range. Dissociation constants show considerable dependence on linker length and vary from 3000 nM for the shortest spacer to 40 nM for the longest with a minimum of 5 nM for a spacer with an intermediate length. A rationale for binding differences based on cooperativity is presented and supported by affinities as determined by fluorescence spectroscopy. Heteronuclear Single Quantum Correlation Nuclear Magnetic Resonance (HSQC) spectroscopic experiments with 15N-labeled HCAII were used for the determination of the site of interaction. The influence of peptide charge and hydrophobicity was evaluated by surface plasmon resonance experiments. Hydrophobic sidechain branching and, more pronounced, peptide charge was demonstrated to modulate peptide – HCAII binding interactions in a cooperative manner, with affinities spanning almost two orders of magnitude. Detailed synthesis of small molecule inhibitors in a general lead discovery library as well as a targeted library for inhibition of α-thrombin is described. For the lead discovery library 160 members emanate from two N4-aryl-piperazine-2-carboxylic acid scaffolds derivatized in two dimensions employing a combinatorial approach on solid support. The targeted library was based on peptidomimetics of the D-Phe-Pro-Arg showing the scaffolds cyclopropane-1R,2R-dicarboxylic acid and (4-amino-3-oxo-morpholin-2-yl)- acetic acid as proline isosters. Employing 4-aminomethyl-benzamidine as arginine mimic and different hydrophobic amines and electrophiles as D-phenylalanine mimics resulted in 34 compounds showing IC50 values for α-thrombin ranging more than three orders of magnitude with the best inhibitor showing an IC50 of 130 nM. Interestingly, the best inhibitors showed reversed stereochemistry in comparison with a previously reported series employing a 3-oxo-morpholin-2-yl-acetic acid scaffold.
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FROT, DIDIER. "Etude experimentale de la dynamique de polymeres au voisinage d'une surface solide par recouvrement de fluorescence apres photolyse en onde evanescente." Paris 6, 1991. http://www.theses.fr/1991PA066128.

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Ce travail presente les premiers resultats d'une etude des proprietes dynamiques de chaines de polymeres confinees a l'interface solide-solution ou solide-polymere fondu. Pour se faire, nous avons mis au point une nouvelle technique de mesure de la mobilite laterale des chaines parallelement a la surface solide privilegiant le voisinage immediat de cette surface (500-1000 a). A l'aide de ce nouvel outil, pour un couple polymere-surface (polydimethylsiloxane, faible polidispersite-silice) et deux bons solvants (hexane-1 chlorobutane, nous avons montre: que des chaines engagees dans une couche adsorbee sont mobiles; que leurs mouvements le long de la surface ne peuvent etre caracterises par un seul coefficient de diffusion, mais plutot par une distribution des mobilites s'etalant sur plusieurs decades. Il en est de meme pour l'interface solide-polymere fondu. Cette distribution de la mobilite se montre tres sensible au temps d'incubation de la couche adsorbee, a la nature des interactions polymere-surface ainsi qu'a la concentration de la solution de volume
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Joly, Laurent. "Nanohydrodynamique au voisinage d'une surface solide : de la caractérisation expérimentale à l'équilibre aux conséquences sur la dynamique des systèmes chargés." Phd thesis, Université Claude Bernard - Lyon I, 2005. http://tel.archives-ouvertes.fr/tel-00011583.

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Ce travail a pour objectif d'étudier l'influence des propriétés de surface sur la nanohydrodynamique de liquides simples au voisinage de parois solides.
Dans une première partie, nous avons développé une nouvelle méthode pour la détermination de la condition limite hydrodynamique (CLH) fondée sur la mesure, par spectroscopie de corrélation de fluorescence, du mouvement thermique de colloïdes confinés. Nous montrons que, sur des surfaces lisses, la CLH est influencée par les propriétés de mouillage de la paroi : tandis que l'hypothèse de non-glissement est respectée sur les parois mouillantes, nous observons un glissement nanométrique du liquide sur les parois non-mouillantes.
Dans une deuxième partie, nous avons exploré, à l'aide de simulations de dynamique moléculaire, les conséquences de ces modifications sur la dynamique des systèmes chargés. Sur des parois non-mouillantes, nous mettons en évidence la possibilité d'une forte amplification des différents effets électrocinétiques.
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Cunge, Gilles. "Diagnostics optiques et électriques dans les plasmas : application à l'étude des interactions plasma-surface pour la micro-électronique." Université Joseph Fourier (Grenoble ; 1971-2015), 1997. http://www.theses.fr/1997GRE10104.

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Nous avons etudie la cinetique des radicaux cf et cf#2 dans un plasma pulse de cf#4 utilise pour la gravure de couches minces de si ou sio#2 dans l'industrie micro-electronique. Les profils de concentration spatiaux resolus dans le temps de ces especes ont ete determines par la technique de fluorescence induite par laser. Ils permettent d'etudier les mecanismes de perte et de production de ces radicaux en phase gazeuse et sur les surfaces du reacteur. Un nouveau mecanisme de production en surface de cf et de cf#2 a ainsi ete mis en evidence, en particulier sur un substrat de silicium. Nous avons alors developpe des techniques pour comparer les flux absolus des neutres cf#x produit au flux d'ions incident. La concentration de cf#2 a ete determinee par la technique d'absorption uv, alors que pour celle de cf, nous avons developpe une nouvelle theorie permettant de rendre la f. I. L. Quantitative en prenant en compte les effets de saturation partielle de l'absorption. Enfin, pour mesurer le flux ionique en milieu polymerisant, nous avons mis au point un nouveau type de sonde electrostatique capable de fonctionner dans les chimies fluorocarbonees qui deposent rapidement un film isolant sur la surface de la sonde. Les resultats quantitatifs obtenus nous ont permis de montrer que le mecanisme de production de cf est la neutralisation et fragmentation des ions incidents. Dans le cas de cf#2, un deuxieme mecanisme lie a la decomposition d'un couche de polymere domine lorsque la concentration de fluor est faible. Cette couche (responsable de la selectivite de la gravure) est formee a partir de neutres lourds c#xf#y eux meme formes par un mecanisme de polymerisation en phase gazeuse (par des reactions c#xf#y+cf#2).
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Täuber, Daniela. "Characterization of heterogeneous diffusion in confined soft matter." Doctoral thesis, Universitätsbibliothek Chemnitz, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-77658.

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A new method, probability distribution of diffusivities (time scaled square displacements between succeeding video frames), was developed to analyze single molecule tracking (SMT) experiments. This method was then applied to SMT experiments on ultrathin liquid tetrakis(2-ethylhexoxy)silane (TEHOS) films on Si wafer with 100 nm thermally grown oxide, and on thin semectic liquid crystal films. Spatial maps of diffusivities from SMT experiments on 220 nm thick semectic liquid crystal films reveal structure related dynamics. The SMT experiments on ultrathin TEHOS films were complemented by fluorescence correlation spectroscopy (FCS). The observed strongly heterogeneous single molecule dynamics within those films can be explained by a three-layer model consisting of (i) dye molecules adsorbed to the substrate, (ii) slowly diffusing molecules in the laterally heterogeneous near-surface region of 1 - 2 molecular diameters, and (iii) freely diffusing dye molecules in the upper region of the film. FCS and SMT experiments reveal a strong influence of substrate heterogeneity on SM dynamics. Thereby chemisorption to substrate surface silanols plays an important role. Vertical mean first passage times (mfpt) in those films are below 1 µs. This appears as fast component in FCS autocorrelation curves, which further contain a contribution from lateral diffusion and from adsorption events. Therefore, the FCS curves are approximated by a tri-component function, which contains an exponential term related to the mfpt, the correlation function for translational diffusion and a stretched exponential term for the broad distribution of adsorption events. Lateral diffusion coefficients obtained by FCS on 10 nm thick TEHOS films, thereby, are effective diffusion coefficients from dye transients in the focal area. They strongly depend on the substrate heterogeneity. Variation of the frame times for the acquisition of SMT experiments in steps of 20 ms from 20 ms to 200 ms revealed a strong dependence of the corresponding probability distributions of diffusivities on time, in particular in the range between 20 ms and 100 ms. This points to average dwell times of the dye molecules in at least one type of the heterogeneous regions (e.g. on and above silanol clusters) in the range of few tens of milliseconds. Furthermore, time series of SM spectra from Nile Red in 25 nm thick poly-n-alkyl-methacrylate (PnAMA) films were studied. In analogy to translational diffusion, spectral diffusion (shifts in energetic positions of SM spectra) can be studied by probability distributions of spectral diffusivities, i.e. time scaled square energetic displacements. Simulations were run and analyzed to study contributions from noise and fitting uncertainty to spectral diffusion. Furthermore the effect of spectral jumps during acquisition of a SM spectrum was investigated. Probability distributions of spectral diffusivites of Nile Red probing vitreous PnAMA films reveal a two-level system. In contrast, such probability distributions obtained from Nile Red within a 25 nm thick poly-n-butylmethacrylate film around glass transition and in the melt state, display larger spectral jumps. Moreover, for longer alkyl side chains a solvent shift to higher energies is observed, which supports the idea of nanophase separation within those polymers.
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Daye, Mirna. "Etude de la contamination par le mercure dans les milieux aquatiques : devenir et comportement biogéochimique, mise au point de méthodes d’analyse de trace du mercure." Thesis, Lille 1, 2013. http://www.theses.fr/2013LIL10074/document.

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Le mercure est un élément très particulier connu par sa densité et sa pression de vapeur élevé. C’est un élément omniprésent dans l'environnement et considéré comme un polluant mondial. Dans les eaux naturelles, le mercure est présent à des concentrations très faibles. Pour cette raison, un grand nombre de techniques analytiques ne permettent pas sa mesure directe, ce qui nécessite souvent une étape de préconcentration. La première partie de cette étude est axée sur le développement des méthodes analytiques pour la mesure du mercure par extraction en phase solide. Deux méthodes analytiques ont été développées, une technique basée sur le mécanisme d'échange d'anions en utilisant l'ICP-MS (Inductively Coupled Plasma Mass Spectrometry) et Une autre basée sur l'extraction en phase solide de mercure en utilisant le 5-phenylazo-8-hydroxyquinoline et la détection par CV-AFS (Cold Vapor Atomic Fluorescence Spectroscopy). La dernière partie de ce travail est consacrée à l’étude de la distribution et le comportement biogéochimique du mercure dans les rivières de la Deûle et de la Lys (Nord de France). Les résultats obtenus montrent des concentrations élevées en mercure total (HgT) dans la Deûle, site contaminé par les activités de l'ancienne fonderie "Metaleurop". Les concentrations mesurées dans la Lys sont beaucoup plus faibles. Bien que les sédiments de la Deûle soient très chargés par HgT par rapport aux sédiments de la Lys, des pourcentages de methylmercure beaucoup plus élevés ont été trouvées dans la Lys
Mercury is a very particular element conferred by its high density and vapor pressure. It is a ubiquitous element in the environment and considered as global pollutant. Mercury is among the most hazardous environmental pollutants, given by its organic form, methylmercury (MeHg or CH3Hg). In natural waters, mercury is present at very low concentrations. For this reason, most analytical techniques do not achieve accurate direct measurement of Hg which necessitates preconcentration to meet their limit of detection. The first part of this study focuses on the development of analytical methods for the measurement of mercury by solid phase extraction. Two analytical methods have been developed; one based on the anion exchange mechanism using ICP-MS (Inductively Coupled Plasma Mass Spectrometry) and the other one based on the solid phase extraction of mercury using 5-phenylazo-8- hydroxyquinoline and detection by CV-AFS (Cold Vapor Atomic Fluorescence Spectroscopy). Part of this work also includes the distribution and biogeochemical behavior of mercury in rivers of the Deûle and Lys (Northern France). The results have showed high concentrations of total mercury (HgT) in the Deûle contaminated by a former smelter "Metaleurop". The concentrations of HgT measured in the Lys are much lower. Although Deûle sediments are highly burdened with HgT as compared to Lys sediments, much higher percentage of methylmercury is found in Lys River. Suspended particles are the major Hg carrier phase and transporters of Hg pollution from Deûle to Lys River
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Garbárová, Veronika. "Nové fluorosenzory na bázi derivátů naftalimidu." Master's thesis, 2019. http://www.nusl.cz/ntk/nusl-396682.

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The aim of the diploma thesis was to prepare and characterize fluorescence sensor systems based on fluorophores and supramolecular components - cyclodextrins - attached to solid supports. In this work, functionalized 75 µm glass beads and two types of Nafion membranes were used as negatively charged solid surfaces. Derivatives of naphthalimide with a positively charged part allowing the attachment to surfaces were synthesized. The positively charged naphthalimide derivative was then attached on negatively charged surfaces via electrostatic interactions and the binding to the solid supports was examined using UV-VIS spectroscopy. Alternatively, the positively charged β-cyclodextrin derivative was also attached to the surface in an equimolar ratio with PNI-HEMPDA. The focus of the work were measurements of fluorescence sensor responses in the gas and liquid phase to linear alcohols - methanol to n-hexanol - for all sensor systems. For the studied sensor systems, the selected sensor parameters were determined - sensitivity, the limit of detection, linear dynamic range and a sensor response time constant. A practical application of the novel sensor system for the detection of ethanol in gasoline was examined. Fluorescence sensor response measurements of the prepared systems based on naphthalimide and...
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Book chapters on the topic "Solid Surface Fluorescence"

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Smalyukh, I. I., and O. D. Lavrentovich. "Defects, Surface Anchoring, and Three-Dimensional Director Fields in the Lamellar Structure of Cholesteric Liquid Crystals as Studied by Fluorescence Confocal Polarizing Microscopy." In Springer Series in Solid-State Sciences, 205–50. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/3-540-31264-1_10.

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Masuhara, H. "Fluorescence and Transient Absorption Spectra of Solid Surface: Development of Time-Resolved Total Internal Reflection Spectroscopy." In Photochemistry on Solid Surfaces, 15–29. Elsevier, 1989. http://dx.doi.org/10.1016/s0167-2991(08)61179-9.

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Ponte Goncalves, A. M. "Fluorescence of Dye Molecules Adsorbed on Semiconductor Surfaces." In Photochemistry on Solid Surfaces, 403–17. Elsevier, 1989. http://dx.doi.org/10.1016/s0167-2991(08)61203-3.

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Krishnan, Kannan M. "Atomic Structure and Spectra." In Principles of Materials Characterization and Metrology, 68–146. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198830252.003.0002.

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We review the structure of atoms to describe allowed intra-atomic electronic transitions following dipole selection rules. Inner shell ionization is followed by characteristic X-ray emission or non-radiative de-excitation processes leading to Auger electrons that involve three atomic levels. Photon incidence also results in characteristic photoelectron emission, reflecting the energy distribution of the electrons in the solid. We present details of laboratory and synchrotron sources of X-rays, and discuss their detection by wavelength or energy-dispersive spectrometers, as well as microanalysis with X-ray (XRF), or electron (EPMA) incidence. Characteristic X-ray intensities are quantified in terms of composition using corrections for atomic number (Z), absorption (A), and fluorescence (F). Electron detectors use electrostatic or magnetic dispersing fields; two common designs are electrostatic hemispheric or mirror analyzers. Auger electron spectroscopy (AES) and X-ray photoelectron spectroscopy (XPS), used for surface analysis, require ultra-high vacuum. AES is a weak signal, best resolved in a derivative spectrum, shows sensitivity to the chemical state and the atomic environment, provides a spatially-resolved signal for composition mapping, and can be quantified for chemical analysis using sensitivity factors. Finally, we introduce the basics of XPS, a photon-in, electron-out technique, discussed further in §3.
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Breuer, H. D. "Photoacoustic and Fluorescence Measurements of Energy Transfer in Adsorption Layers." In Photochemistry on Solid Surfaces, 106–18. Elsevier, 1989. http://dx.doi.org/10.1016/s0167-2991(08)61184-2.

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Hirayama, S., T. Kubo, and H. Yamasaki. "Heterogeneous Molecular Environments Probed by Fluorophores Bonded to Chemically Modified Silica Gel— Fluorescence Decay Measurements Under a Microscope." In Photochemistry on Solid Surfaces, 93–105. Elsevier, 1989. http://dx.doi.org/10.1016/s0167-2991(08)61183-0.

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Sonnenschein, M. F., and R. G. Weiss. "Fluorescence Quenching of Pyrene as a Monitor of Intermolecular Diffusion and Intramolecular Chain Bending in Cholesteric Liquid Crystalline Phases (1)." In Photochemistry on Solid Surfaces, 526–50. Elsevier, 1989. http://dx.doi.org/10.1016/s0167-2991(08)61210-0.

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Conference papers on the topic "Solid Surface Fluorescence"

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Patil, Ajeetkumar, V. K. Unnikrishnan, Santhosh Chidangil, Alka B. Garg, R. Mittal, and R. Mukhopadhyay. "Surface Enhanced Fluorescence of Tryptophan by Silver-Nano-particles." In SOLID STATE PHYSICS, PROCEEDINGS OF THE 55TH DAE SOLID STATE PHYSICS SYMPOSIUM 2010. AIP, 2011. http://dx.doi.org/10.1063/1.3605813.

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Hattori, T., A. Kubo, K. Oguri, H. Nakano, and H. T. Miyazaki. "Femtosecond Two-photon Fluorescence Microscopy of Surface Plasmon Polariton." In 2011 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 2011. http://dx.doi.org/10.7567/ssdm.2011.i-3-2.

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IIDA, Atsuo. "Semiconductor Surface Characterization by Total Reflection X-Ray Fluorescence Analysis." In 1989 Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 1989. http://dx.doi.org/10.7567/ssdm.1989.s-e-3.

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Choi, Y. J., K. Takahashi, M. Matsuda, T. Hizawa, Y. Moriwaki, F. Dasai, Y. Kimura, et al. "Improvement of Filter-less Fluorescence Sensor by the Surface Planarization of Polysilicon Photogate." In 2015 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 2015. http://dx.doi.org/10.7567/ssdm.2015.ps-11-13l.

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5

Caballina, Ophélie, William Chaze, Guillaume Castanet, Denis Maillet, Jean-François Pierson, and Fabrice Lemoine. "Instantaneous heat transfers at the impact of a droplet onto a hot surface in the film boiling regime." In ILASS2017 - 28th European Conference on Liquid Atomization and Spray Systems. Valencia: Universitat Politècnica València, 2017. http://dx.doi.org/10.4995/ilass2017.2017.4636.

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Heat and mass transfers at the impact of a droplet onto a hot solid surface are investigated experimentally. Millimetersizedwater droplets impinges onto a perfectly flat sapphire surface heated at 600°C. The temperature of the liquidinside the droplet is measured using the two-color laser-induced fluorescence (2cLIF) technique. Water is seededwith a temperature-sensitive fluorescent dye, while a nanosecond pulsed laser is used for the excitation of the fluorescence.The ratio of fluorescence signal detected in two appropriate spectral bands allows to determine the liquidtemperature. One advantage of this non-intrusive optical technique is that it eliminates adverse effects associatedwith signal variations caused by droplet shape during its impact. In parallel, the temperature of the solid surfaceis characterized using infrared thermography. The latter measurements are made possible by the deposition of ananosize coating of titanium aluminium nitride (TiAlN) on the upper surface of the sapphire window. Thanks to thehigh frame rate of the IR camera, the time evolution of the heat flux distribution at the solid surface can be reconstructed. A comparison of IR and 2cLIF techniques enable to correlate the heating of the liquid with the cooling ofthe wall. This reveals that most of the heat removed from the solid surface is devoted to the heating of the liquid,the energy used for liquid vaporization being significantly lower.DOI: http://dx.doi.org/10.4995/ILASS2017.2017.4636
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Takiguchi, H., Y. Teramura, and H. Iwata. "Speedy and Quantitative Analysis of Alpha Fetoprotein in Human Plasma with Surface Plasmon Field Enhanced Fluorescence Spectroscopy." In 2008 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 2008. http://dx.doi.org/10.7567/ssdm.2008.p-11-2.

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Hishida, Koichi, Mitsuhisa Ichiyanagi, Yutaka Kazoe, and Yohei Sato. "Laser-Based Measurement Techniques for Interfacial Transport Phenomena in Microchannels." In ASME 2013 11th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/icnmm2013-73223.

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This paper summarized our recent works of the laser-based measurement techniques for investigating micro- and nano-scale transport phenomena. Micron-resolution particle image velocimetry combined with the laser induced fluorescence (LIF) technique was developed for analyzing velocity and ion concentration distributions simultaneously. The measurement system was based upon a confocal microscopy to realize the depth-resolution of approximately 2 μm, and this technique was applied to liquid-liquid mixing flows, gas-liquid two-phase flows and gas permeation phenomena through membranes. To evaluate the electrostatic potential at solid-liquid interface (i.e., zeta-potential), the LIF technique was advanced with the evanescent wave illumination. Fluorescent dye within approximately 100 nm from a microchannel wall was irradiated. This technique was applied to microdevices with a surface modification pattern, and the zeta-potential distribution was successfully visualized. Two proposed techniques will contribute to novel applications related to microscale multiphase flows or electrokinetics.
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Yoda, Minami. "Studying Interfacial Transport With Evanescent Wave-Based Particle Velocimetry and Thermometry." In ASME 2011 9th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2011. http://dx.doi.org/10.1115/icnmm2011-58302.

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Interfacial phenomena due to surface forces are important in microfluidic devices with their relatively large surface areas and small volumes. Most experimental studies of interfacial transport estimate flow velocities from the motion of tracer particles less than 1 μm in diameter, and assume that the particle displacements over a known interval are due to the fluid velocity field. This talk discusses some of our research on measuring fluid velocities in Poiseuille and electrokinetically driven flows over the first ∼0.5 μm next to the solid wall from the motion of an ensemble of O(105) fluorescent spheres as small as 100 nm illuminated by evanescent waves. Because the evanescent-wave intensity decays exponentially with wall-normal distance, the particle-wall separation can be determined from the brightness of each particle image, and used to estimate the steady-state distribution of the tracers near the fluid-solid interface. Recently, evanescent-wave illumination has been combined with fluorescence thermometry, where water temperature fields are estimated from changes in the intensity of the emissions from aqueous solutions of temperature-sensitive fluorophores. The Poiseuille flow of a fluorescein solution through a heated channel at a Reynolds number of 8.3 was illuminated with evanescent waves to obtain the solution temperature at an average distance of 74 nm from the wall. The temperature results obtained over three different regions were in good agreement with numerical predictions of the wall surface temperature, even in the presence of temperature differences exceeding 15 °C over the 1 mm width of the channel.
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Pinzani, M. Caterina Camerani, Britt-Marie Steenari, and Oliver Lindqvist. "Direct Determination of Cadmium Speciation in MSW and Biomass Single Fly Ash Particles Using SR Based µ-XR Spectroscopy Techniques." In 17th International Conference on Fluidized Bed Combustion. ASMEDC, 2003. http://dx.doi.org/10.1115/fbc2003-021.

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Cadmium is a toxic metal causing environmental concern in connection with utilization and land filling of ash. Knowledge about the chemical associations of Cd in ash is fundamental in the understanding of its solubility and leachability from the ash. In the work presented here, the content, distribution and chemical forms of Cd on/in individual Municipal Solid Waste (MSW) and biomass fly ash particles have been investigated in situ by Synchrotron Radiation induced μ-X-ray fluorescence, absorption spectrometry (XAS) and fluorescence tomography. These X-ray micro-beam techniques can be used to reveal spatially resolved information about structural and chemical properties of particles. The use of an excitation energy of 27 keV made it possible to detect trace metals, such as Cd at ppm levels, but also other elements, like Ca, K, Cl and Br. Absorption spectra of Cd in the energy range around the absorption edge of Cd (26.71 keV) were recorded for micron-sized spots of ash particles. Fluorescence tomography was then use to establish if Cd compounds are situated on the particle surface (i.e. most prone to leaching) or at some depth within the particle, where they might be more shielded from chemical attack by water. The measurements indicated Cd to be preferably concentrated in some small areas (“hot-spots”) with high concentration (up to 200 ppm) in MSW fly ash particles and in a homogeneous distribution over the whole particle surface in the case of biomass. Comparisons of XAS spectra of fly ashes and reference compounds showed Cd to be present in the oxidation state +2 and mainly as CdSO4, CdO and CdCl2. Although previous studies have indicated Cd to be enriched in the smaller-size ash particles, in this study Cd was found to be reasonably well distributed throughout all the particle sizes investigated. Based on the results obtained, possible reaction mechanisms involving Cd are suggested.
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Soriano, Guillermo, Jorge L. Alvarado, and Yen Po Lin. "Experimental Characterization of Single and Multiple Droplet Impingement on Surfaces Subject to Constant Heat Flux Conditions." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22515.

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Spray cooling is one of the most promising technologies in applications which require large heat removal capacity in very small areas. Previous experimental studies have suggested that one of the main mechanisms of heat removal in spray cooling is forced convection with strong mixing due to droplet impingement. These mechanisms have not been completely understood mainly due to the large number of physical variables, and the inability to modulate and control variables such as droplet frequency and size. Our approach consists of minimizing the number of experimental variables by controlling variables such as droplet direction, velocity and diameter. An experimental study of single and multiple droplet impingements using HFE 7100 as the cooling fluid under constant heat flux conditions is presented. A monosized droplet train is produced using a piezoelectric droplet generator with the ability to adjust droplet frequency, diameter and velocity. In this study, heaters consisting of a layer of Indium Tin Oxide (ITO) as heating element, and silicon substrates are used. Film morphology was characterized using a Laser Induced Fluorescence (LIF) technique with a focus on the droplet impact zone by measuring variables such as film thickness and diameter of the impact zone. Infrared thermography was used to measure surface temperature at the liquid-solid interface. The IR thermography technique was also used to characterize temperature gradients at the droplet impact zone. The results and effects of droplet frequency, fluid flow rate, and fluid temperature on heat flux are also presented.
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