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Journal articles on the topic 'Fluorescence of the dye'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Zhang, Jianhui, Aaron Thurber, Dmitri A. Tenne, et al. "Enhanced Dye Fluorescence in Novel Dye-ZnO Nanocomposites." Advanced Functional Materials 20, no. 24 (2010): 4358–63. http://dx.doi.org/10.1002/adfm.201001060.

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2

Sorokin, A. V. "Fluorescence of cyanine dye excimers in nanoporous silica." Functional materials 22, no. 2 (2015): 207–11. http://dx.doi.org/10.15407/fm22.02.207.

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3

Guo, Xiang-Qun, Zu-Lin Zhang, Yi-Bing Zhao, Dong-Yuan Wang, and Jin-Gou Xu. "DNA—Dye Fluorescence Enhancement Based on Shifting the Dimer—Monomer Equilibrium of Fluorescent Dye." Applied Spectroscopy 51, no. 7 (1997): 1002–7. http://dx.doi.org/10.1366/0003702971941386.

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In this paper, the investigation of DNA–dye fluorescence enhancement based on shifting the dimer–monomer equilibrium of a fluorescent dye, acridine orange (AO), is reported. Formation of a virtually nonfluorescent dimeric dye, acridine orange homodimer (AOAO), induced by the pre-micellar aggregation of an anionic surfactant, sodium dodecyl sulfate (SDS), was observed. The possibility of using the in situ formed AOAO as a fluorescent probe for nucleic acids and polynucleotides was studied. The results showed that a nearly 1000-fold fluorescence enhancement was observed upon addition of calf thy

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4

Sukprasong, Saksit, Yongyut Manjit, Apichart Limpichaipanit, and Athipong Ngamjarurojana. "Inner Filter Effect on Fluorescence Dyes Spectra in Methanol Solution." Key Engineering Materials 675-676 (January 2016): 704–7. http://dx.doi.org/10.4028/www.scientific.net/kem.675-676.704.

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This research was conducted to study the inner filter effect on the fluorescence spectra of fluorescence dyes. The concentration effect on all of fluorescent dye solutions showed the same trend in terms of changes in fluorescence intensity spectra. At low concentrations, the fluorescence intensity increased when the concentration of fluorescent dye solution increased. However, at high concentrations, the fluorescence intensity decreased when the concentration of fluorescent dye solution increased. Interestingly, the result of fluorescence spectra in dye solutions showed that the fluorescence i

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5

S. Cuevas, June Rey, and Elmo Ado Jr. "Turmeric Extract as an Alternative Diagnostic Dye for Fluorescein Dye." Journal of Optometry, Eye and Health Research 4, no. 1 (2022): 7. http://dx.doi.org/10.57002/joehr.v4i1.268.

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A true-experimental type of research in which a range of 10%, 20% and 30% of ophthalmic form of a pre-formulated diagnostic dye using crude extract of curcumin and 1.4% polyvinyl alcohol as a solvent. The pre-formulated ophthalmic dye was tested in 9 mice’s as an animal model for corneal ulcer which is induced by direct contact facilitated with 0.9%NaCl for growth of staphylococcus aureus and 3 mice’s serves as control. The degree of irritancy was also considered by doing “Draize-Eye Irritation Test”. The proposed alternative diagnostic dye was compared to the synthetic fluorescein dye in term

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6

Walki, Shashikant, Hemantkumar M. Savanur, M. K. Ravindra та ін. "Photophysical Studies on D-π-A Imidazole Derivative for Organic Dye Sensitized Solar Cell Application". Asian Journal of Chemistry 32, № 11 (2020): 2829–38. http://dx.doi.org/10.14233/ajchem.2020.22853.

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In present study, a new organic dye 2-(4-chlorophenyl)-1-(4-methoxyphenyl)-4,5-diphenyl-1Himidazole (CMI) containing phenyl donor with imidazole ring as π-linker and chlorophenyl group as acceptor have been synthesized. The photophysical properties like solvato-chromism, optical band gap and fluorescence lifetime are estimated using experimental as well as quantum chemical computational techniques. Further, photosensitization of TiO2 nanoparticles from CMI dye has been investigated using absorption, steady-state and time resolved fluorescence methods. The increase in absorbance and a decrease

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7

Berezin, Mikhail Y., Kevin Guo, Bao Teng, et al. "Radioactivity-Synchronized Fluorescence Enhancement Using a Radionuclide Fluorescence-Quenched Dye." Journal of the American Chemical Society 131, no. 26 (2009): 9198–200. http://dx.doi.org/10.1021/ja903685b.

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8

Ratajska-Gadomska, Bożena, Wojciech Gadomski, Bożena Janowska-Dmoch, and Chris Sorensen. "Solgel transition in dye fluorescence measurements." Applied Optics 36, no. 30 (1997): 7645. http://dx.doi.org/10.1364/ao.36.007645.

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9

Mokhtari, A., A. Chebira, and J. Chesnoy. "Subpicosecond fluorescence dynamics of dye molecules." Journal of the Optical Society of America B 7, no. 8 (1990): 1551. http://dx.doi.org/10.1364/josab.7.001551.

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10

Iosin, Monica, Patrice Baldeck, and Simion Astilean. "Plasmon-enhanced fluorescence of dye molecules." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 267, no. 2 (2009): 403–5. http://dx.doi.org/10.1016/j.nimb.2008.10.055.

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11

Baldini, Giancarlo, Giuseppe Chirico, Laura Della Torre, and Gabriele Varani. "Role of solvation on dye fluorescence." Journal of Luminescence 40-41 (February 1988): 274–75. http://dx.doi.org/10.1016/0022-2313(88)90191-3.

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12

Fu, Qing, Xiaolin Zhang, Peipei Yan, 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 be

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13

Balyan, Priyanka, Shekhar Gupta, Sai Kiran Mavileti, Shyam S. Pandey, and Tamaki Kato. "NIR-Sensitive Squaraine Dye—Peptide Conjugate for Trypsin Fluorogenic Detection." Biosensors 14, no. 10 (2024): 458. http://dx.doi.org/10.3390/bios14100458.

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Trypsin enzyme has gained recognition as a potential biomarker in several tumors, such as colorectal, gastric, and pancreatic cancer, highlighting its importance in disease diagnosis. In response to the demand for rapid, cost-effective, and real-time detection methods, we present an innovative strategy utilizing the design and synthesis of NIR-sensitive dye–peptide conjugate (SQ-3 PC) for the sensitive and selective monitoring of trypsin activity by fluorescence ON/OFF sensing. The current research deals with the design and synthesis of three unsymmetrical squaraine dyes SQ-1, SQ-2, and SQ-3 a

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14

Lima, Sthanley R. De, Larissa R. Lourenço, Marina Thomaz, Djalmir N. Messias, Acácio A. Andrade, and Viviane Pilla. "Fluorescence Quantum Yields and Lifetimes of Aqueous Natural Dye Extracted from Tradescantia pallida purpurea at Different Hydrogen Potentials." Photochem 3, no. 1 (2023): 1–15. http://dx.doi.org/10.3390/photochem3010001.

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In this work, we monitored the fluorescence quantum efficiency (η) and the fluorescence lifetime (τ) of natural dye extracts from the leaves of Tradescantia pallida purpurea. The natural dye was extracted from leaves in aqueous solutions as a function of the potential of hydrogen (pH). The η was determined from conical diffraction (CD) pattern measurements due to thermally-driven self-phase modulation. The fluorescence spectra and time-resolved fluorescence measurements corroborate the CD results, and the average η » 0.28 and τ » 3.1 ns values were obtained in the pH range 3.96–8.02. In additi

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15

Zelinskiy S.N., S. N., E. N. Danilovtseva E.N., M. S. Strelova M.S., V. A. Pal’shin V.A., and V. V. Annenkov V.V. "Coumarin-based acid dye for fluorescent staining of calcium carbonate particles." Limnology and Freshwater Biology, no. 6 (2023): 244–52. http://dx.doi.org/10.31951/2658-3518-2023-a-6-244.

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Vital fluorescence staining of calcium-containing structures in calcifying organisms is a powerful tool for the study of biocalcification. The main dyes used in this field have green or red fluorescence, which may be overlapped with the fluorescence of chlorophyll and other organic substances. We synthesized a novel coumarin-based fluorescent dye QA2 that stains calcium carbonate and calcium phosphate. The fluorescence of this dye depends from environment, it is enhanced in non-polar medium with a shift of the emission maximum to the blue spectrum region. Small vaterite and calcium phosphate p

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16

Dr. Rajeev Kumar, Dr Rajeev Kumar. "A Study the Techniques of Spectroscopic and effects of Solvents on Rhodamine." Journal of Advances in Science and Technology 20, no. 2 (2024): 51–57. http://dx.doi.org/10.29070/v3rybe06.

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The purpose of this study is to examine the effect of environmental conditions on the laser dyesin various liquid solid media. Due to the different fluorescence spectrum of the dye, it is also wellknown that a dye laser's tunable range is affected by solvent. Laser dye solvent interact in some way,as evidenced by this finding. Furthermore, rhodamine dyes are affected by different environments. Aspreviously stated, the fluorescence quantum yield of the Rh6G dye in water is reduced, that reduces theoutput power of Rh6G dye laser. These samples require the dyes to be dissolved in different solven

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17

Yamagami, Wataru, Nobuyuki Susumu, Fumio Kataoka, et al. "A Comparison of Dye Versus Fluorescence Methods for Sentinel Lymph Node Mapping in Endometrial Cancer." International Journal of Gynecologic Cancer 27, no. 7 (2017): 1517–24. http://dx.doi.org/10.1097/igc.0000000000000997.

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ObjectiveSentinel nodes (SNs) have been observed in several reports from Japan and overseas in cases with endometrial cancer; however, no consensus has been reached regarding the types of tracers or the method of their injection. A combination of the radioisotope (RI) and dye method is considered to be desirable. We assessed SN mapping using either dye or near-infrared fluorescence imaging to clarify a suitable method in cases of endometrial cancer.MethodsPatients were enrolled from 92 patients diagnosed with endometrial cancer and having no extrauterine metastasis by the preoperative imaging

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18

Sen, Srijon. "Fluorescence Labelling of Proteomic Samples." International Journal of Chemistry, Mathematics and Physics 6, no. 2 (2022): 01–17. http://dx.doi.org/10.22161/ijcmp.6.2.1.

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Over the decades, covalent derivatization of proteins with fluorescent dyes prior to separation is widely used in the field of proteomic research. Our work examines the reactivity of a novel fluorescent dye with different proteins having different properties and check out for the reaction time of this dye with the proteins. Several experiments suggested that the reaction is increasing with time. Phosphate Buffer turned out to be a better option compared to Tris Buffer in terms of protein solubilization. Denaturing and non-denaturing gel electrophoresis suggested that the fluorescent dye reacts

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19

Beisker, W., and W. G. Eisert. "Denaturation and condensation of intracellular nucleic acids monitored by fluorescence depolarization of intercalating dyes in individual cells." Journal of Histochemistry & Cytochemistry 37, no. 11 (1989): 1699–704. http://dx.doi.org/10.1177/37.11.2478614.

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The intercalating binding of planar aromatic dye molecules to nucleic acids can be analyzed using fluorescence depolarization measurements of the dye molecules excited by linearly polarized light. In this study, we investigated the conformational changes of the intracellular DNA-dye complex in single cells. Flow cytometry, combined with a newly developed double-beam autocompensation technique, permitted rapid high-precision fluorescence depolarization measurements on a large number of individual cells. The dyes ethidium bromide (EB), propidium iodide (PI), and acridine orange (AO) were used in

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20

Bucana, C., I. Saiki, and R. Nayar. "Uptake and accumulation of the vital dye hydroethidine in neoplastic cells." Journal of Histochemistry & Cytochemistry 34, no. 9 (1986): 1109–15. http://dx.doi.org/10.1177/34.9.2426339.

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Hydroethidine, a reduced form of ethidium bromide, was used as a vital dye in fluorescence assays that allowed visual and semiquantitative monitoring of dye uptake and accumulation by fluorescence microscopy, flow cytometry, image analysis, and microfluorimetry. The excitation and emission filters were chosen to detect hydroethidine and exclude ethidium. Microscopically, there were differences in fluorescence intensities and fluorescence patterns among various tumor cell lines. The fluorescence pattern varied from homogeneous blue in the cytoplasm to blue plus brilliant packets of bluish-white

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21

Tangod, V. B., Prasad Raikar, B. M. Mastiholi, and U. S. Raikar. "Solvent polarity studies of highly fluorescent laser dye ADS740WS and its fluorescence quenching with silver nanoparticles." Canadian Journal of Physics 92, no. 2 (2014): 116–23. http://dx.doi.org/10.1139/cjp-2013-0250.

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Determination of ground state and excited state dipole moments of a highly fluorescent laser dye molecule ADS740WS and comparison of excited state dipole moment by Lippert, Bakhashiev, Kawski–Chamma–Viallet, McRae, Suppan, and solvent polarity methods. Kamlet–Abboud–Taft and Katritzky multilinear analysis for characterizing the solvent contribution into spectral features of the dye has also been studied. Correlation analysis of spectroscopic data with multiple polarity parameters was carried out by multiple linear regression analysis. Optical absorption and fluorescence of ADS740WS in alcohol

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22

Pereverzev, N. V. "Metal enhanced fluorescence of thiacyanine dye in layered polymer films." Functional materials 21, no. 4 (2014): 409–13. http://dx.doi.org/10.15407/fm21.04.409.

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23

Shopov, Yavor, Ivan Antonov, Valentin Lozanov, Pavlin Dimitrov, Svetoslav Marinov, and Efrosina Hristova. "Invisible dye tracing – an efficient technique for study of groundwater channels." Review of the Bulgarian Geological Society 81, no. 3 (2020): 224–26. http://dx.doi.org/10.52215/rev.bgs.2020.81.3.224.

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We studied excitation spectra of uranine fluorescence in eluates from charcoal traps saturated in cave waters and in reference uranine solutions and found that the most appropriate excitation wavelength is 295±5 nm, because it excites fluorescence of uranine many times stronger than fluorescence of natural fluorescent compounds in groundwater. This allows us to lower the detection limit of uranine fluorescence with one order of magnitude, even below the level of natural fluorescence of karst waters at integral UV excitation.

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24

Prince, M. R., and C. A. Athanasoulis. "Fluorescence-guided pulsed dye laser-assisted angioplasty." Radiology 182, no. 3 (1992): 896–97. http://dx.doi.org/10.1148/radiology.182.3.1535916.

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25

MATHUR, A. K., CHITRA AGARWAL, B. S. PANGTEY, A. SINGH, and B. N. GUPTA. "Surfactant-induced fluorescence changes in fluorescein dye." International Journal of Cosmetic Science 10, no. 5 (1988): 213–18. http://dx.doi.org/10.1111/j.1467-2494.1988.tb00019.x.

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26

S. C. Finkner and J. E. Gilley. "Sediment and Dye Concentration Effects on Fluorescence." Applied Engineering in Agriculture 2, no. 2 (1986): 104–7. http://dx.doi.org/10.13031/2013.26721.

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27

C., Smart, and Karunaratne K. "Characterisation of fluorescence background in dye tracing." Environmental Geology 42, no. 5 (2002): 492–98. http://dx.doi.org/10.1007/s00254-001-0510-y.

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28

Sluch, M. I., A. G. Vitukhnovsky, J. G. Warren, and M. C. Petty. "Dye fluorescence kinetics of Langmuir-Blodgett films." Thin Solid Films 210-211 (April 1992): 211–12. http://dx.doi.org/10.1016/0040-6090(92)90213-u.

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29

Kanematsu, Yasuo, Jeung Sun Ahn, and Takashi Kushida. "Resonance fluorescence spectra of dye-doped polymers." Journal of Luminescence 53, no. 1-6 (1992): 235–38. http://dx.doi.org/10.1016/0022-2313(92)90145-y.

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30

Maiti, Nakul C., M. M. G. Krishna, P. J. Britto, and N. Periasamy. "Fluorescence Dynamics of Dye Probes in Micelles." Journal of Physical Chemistry B 101, no. 51 (1997): 11051–60. http://dx.doi.org/10.1021/jp9723123.

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31

Ryu, Naoya, and Hiroshi Hachisako. "Enhanced Fluorescence of Loosely Packed Dye Aggregates." Chemistry Letters 44, no. 2 (2015): 211–13. http://dx.doi.org/10.1246/cl.140962.

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32

Endo, T., T. Sato, and M. Shimada. "Fluorescence properties of the dye-intercalated smectite." Journal of Physics and Chemistry of Solids 47, no. 8 (1986): 799–804. http://dx.doi.org/10.1016/0022-3697(86)90009-0.

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33

Schmidt, J., and A. Penzkofer. "Fluorescence spectroscopic investigations of rhodamine dye vapors." Chemical Physics 133, no. 2 (1989): 297–301. http://dx.doi.org/10.1016/0301-0104(89)80210-1.

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34

Tóth, Emese, Ditta Ungor, Tibor Novák, et al. "Mapping Fluorescence Enhancement of Plasmonic Nanorod Coupled Dye Molecules." Nanomaterials 10, no. 6 (2020): 1048. http://dx.doi.org/10.3390/nano10061048.

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Plasmonically enhanced fluorescence is a widely studied and applied phenomenon, however, only a comparative theoretical and experimental analysis of coupled fluorophores and plasmonic nanoresonators makes it possible to uncover how this phenomenon can be controlled. A numerical optimization method was applied to design configurations that are capable of resulting in an enhancement of excitation and emission, moreover, of both phenomena simultaneously in coupled Cy5 dye molecule and gold nanorod systems. Parametric sensitivity studies revealed how the fluorescence enhancement depends on the mol

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35

Shbeeb, Ruwaida Tahseen, Sarmed S. Mahdi, and Sabreen A. Khalaf. "Effect of Silver Nanoparticles on Fluorescence Intensity of Fluoreseina Dye Mixed in One Solution." Iraqi Journal of Physics (IJP) 19, no. 51 (2021): 54–63. http://dx.doi.org/10.30723/ijp.v19i51.710.

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Metal enhanced fluorescence (MEF) is an unequaled phenomenon of metal nanoparticle surface plasmons, when light interacts with the metal nanostructures (silver nanoparticles) which result electromagnetic fields to promote the sensitivity of fluorescence. This work endeavor to study the influence of silver nanoparticles on fluorescence intensity of Fluoreseina dye by employment mixture solution with different mixing ratio. Silver nanoparticles had been manufactured by the chemical reduction method so that Ag NP layer coating had been done by hot rotation liquid method. The optical properties of

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36

Nishitani, Shoichi, Kevin Ao, and Markita P. Landry. "Redox Dye-Mediated Fluorescence Energy Transfer of Carbon Nanotube Based Nanosensors." ECS Meeting Abstracts MA2025-01, no. 11 (2025): 946. https://doi.org/10.1149/ma2025-0111946mtgabs.

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Single-walled carbon nanotubes (SWCNTs) exhibit non-photobleaching, near-infrared (NIR) fluorescence which is advantageous for bioimaging applications. In particular, SWCNT fluorescence quenching induced by biopolymer dispersants facilitates flexible design of molecular nanosensors, yet challenges remain in analyte selectivity and lack of rational design strategies. A sought-after alternative to haphazard molecular modulation of SWCNT-based fluorescence is to couple the movement of a quencher to the SWCNT surface, enabling fluorescence energy transfer to modulate molecular recognition with hig

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37

Wang, Minghao, Mehdi Stiti, and Guillaume Castanet. "Fluorescence Lifetime Measurement For Studying Evaporation Of Bi-Component Droplet." Proceedings of the International Symposium on the Application of Laser and Imaging Techniques to Fluid Mechanics 21 (July 8, 2024): 1–13. http://dx.doi.org/10.55037/lxlaser.21st.185.

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Sprays are essential in engineering applications like evaporators and combustion chambers. Predicting the evaporation of multi-component liquid droplets is complex due to changing composition and properties. Measuring droplet composition is challenging, with limited non-intrusive methods available. Raman spectroscopy faces hurdles like weak signals and interference. Intensity based Laser-Induced Fluorescence (LIF) requires optical models to interpret data due to varying droplet size and position. Fluorescent dyes in liquid mixtures are sensitive to temperature, complicating measurements. Fluor

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38

Stafford, Sarah J. V., Spencer L. Shorte, and J. George Schofield. "Use of a fluorescent dye to measure secretion from intact bovine anterior pituitary cells." Bioscience Reports 13, no. 1 (1993): 9–17. http://dx.doi.org/10.1007/bf01138174.

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The fluorescent dye FM1-43 has been used to indicate membrane changes in individual bovine anterior pituitary cells exposed to secretory stimuli. After ten minutes incubation with FM1-43 (2 μM), cells showed three patterns of dye fluorescence: annular, partly filled and uniformly filled. FM1-43 fluorescence was increased in 61% of the cells by TRH (40 nM), a physiological stimulus for prolactin secretion, and in 89% of the cells by 60 mM external K+. The fluorescence also increased when cells incubated in the presence of quinpirole, a dopamine D2-receptor agonist which inhibits prolactin secre

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39

Song, Young Kyu, Tae Hee Lee, Jin Chul Kim, et al. "Dual Monitoring of Cracking and Healing in Self-healing Coatings Using Microcapsules Loaded with Two Fluorescent Dyes." Molecules 24, no. 9 (2019): 1679. http://dx.doi.org/10.3390/molecules24091679.

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We report the development of an extrinsic, self-healing coating system that shows no fluorescence from intact coating, yellowish fluorescence in cracked regions, and greenish fluorescence in healed regions, thus allowing separate monitoring of cracking and healing of coatings. This fluorescence-monitoring self-healing system consisted of a top coating and an epoxy matrix resin containing mixed dye loaded in a single microcapsule. The dye-loaded microcapsules consisted of a poly(urea-formaldehyde) shell encapsulating a healing agent containing methacryloxypropyl-terminated polydimethylsiloxane

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40

Beach, J. M., E. D. McGahren, J. Xia, and B. R. Duling. "Ratiometric measurement of endothelial depolarization in arterioles with a potential-sensitive dye." American Journal of Physiology-Heart and Circulatory Physiology 270, no. 6 (1996): H2216—H2227. http://dx.doi.org/10.1152/ajpheart.1996.270.6.h2216.

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A fluorescence ratio technique based on the voltage-sensitive dye 1-(3-sulfonatopropyl)-8-[beta-[2-di-n-butylamino)-6-naphythyl++ +]vinyl] pyridinium betaine (di-8-ANEPPS)has been developed for recording membrane potential changes during vascular responses of arterioles. Perfusion of hamster cheek pouch arterioles with the dye labeled the endothelial cell layer. voltage responses from the endothelium of intact arterioles were determined by analysis of voltage-induced shifts in fluorescence emission wavelengths from dye spectra imaged from the vessel wall. Membrane depolarization caused the dye

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41

Liu, Lin-I., Nikolay N. Barashkov, Tamara S. Novikova, Chintamani P. Palsule, Shubhra Gangopadhyay, and Walter L. Borst. "Fluorescence Studies on New Epoxypolymer—Dye Compositions for Ultrafast Wavelength Shifters." Applied Spectroscopy 50, no. 12 (1996): 1545–52. http://dx.doi.org/10.1366/0003702963904467.

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Fast wavelength shifters with fluorescence decay times in the low nanosecond range were prepared from mixtures of various dyes in epoxypolymer compositions on the base of diglycidyl ether of bisphenol-A (DGEBA) with hexahydrophthalic anhydride (HHPA) or trimethoxyboroxine (TMBOX). Three possible sample preparation methods yielding high transmittance and high-fluorescence intensity were compared. The characteristics of the new wavelength shifters were determined with continuous-wave (cw) excitation of the fluorescence and by pulsed-laser excitation, the latter coupled with an analysis of the fl

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42

KARTHAUS, OLAF, KIYOSHI OKAMOTO, RYOTA CHIBA, and KAZUAKI KAGA. "SIZE EFFECT OF CYANINE DYE J-AGGREGATES IN MICROMETER-SIZED POLYMER "DOMES"." International Journal of Nanoscience 01, no. 05n06 (2002): 461–64. http://dx.doi.org/10.1142/s0219581x02000504.

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The fluorescence behavior of 3,3′diethyl-thiacarbocyanine iodide in micrometer-sized polystyrene droplets, or "domes" on glass substrates was investigated. The samples were prepared by casting dilute polymer/dye solutions onto the substrates. A dewetting process leads to the formation of small polymer domes with a diameter of 1–100 μm and a height of 100 nm to several μm. Fluorescence microscopy shows that the dye is incorporated into these polymer domes. It was found that the absorption and fluorescence spectra depend on the size of the polymer domes. Larger domes show red-shifted fluorescenc

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43

AL Hussainey, Afrah M., Ruaa Kahtan Mahmoud, and Talib M. Abbas ALShafie. "Study the Optical and Spectral Properties of the Acridine Dye As an Effective Medium in Dye Lasers." JOURNAL OF UNIVERSITY OF BABYLON for Pure and Applied Sciences 26, no. 10 (2018): 167–80. http://dx.doi.org/10.29196/jubpas.v26i10.1852.

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In this study, the absorption and fluorescence spectra of the dissolved Acridine solution were studied in ethanol and different concentrations. The optical properties (absorption coefficient, linear refraction) and spectral characteristics (Fluorescence time and quantitative fluoridation efficiency) were calculated. It is observed that increasing the concentration increases the absorbance values and decreases the permeability values, thus increasing the values of the absorption coefficient and the refractive index. Also, the values of the fluorine intensity increase. The peak of the emission s

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44

Zhang, Dong Yin, Jian Peng Xue, Jun Mei Tian, et al. "Matriptase Sensitive Gold Nanoparticle Probe for early Cancer Detection." Advanced Materials Research 529 (June 2012): 301–5. http://dx.doi.org/10.4028/www.scientific.net/amr.529.301.

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Matriptase is a type II transmembrane serine protease highly expressed on the surface of tumor cells and participated in a range of human cancers including those of the breast, cervix, ovaries, prostate, colon and gastrointestinal tract. In this study, we developed a new matriptase detection probe with gold nanoparticles (AuNPs). A fluorescence dye was attached to AuNP surface through the bridge of peptide substrate (GRQSRAC). The fluorescence was quenched due to the fluorescence resonance energy transfer (FRET) between AuNP and the fluorescence dye. The fluorescence recovery properties were c

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45

Cho, Ju Yong, Hyoungjin Kim, Seunghoon Lee, and Won Kweon Jang. "Real-Time Measurement of Photodissociation with a Static Modulated Fourier Transform Spectrometer." Applied Sciences 12, no. 6 (2022): 3021. http://dx.doi.org/10.3390/app12063021.

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A static modulated Fourier transform spectrometer composed of a modified Sagnac interferometer was implemented for real-time remote sensing of the spectral property changes in a solid dye. In the spectrum obtained from the implemented spectrometer, the relationship between spectral resolution and dependent factors was discussed to prevent aliasing. As a target material, a solid-state dye of rhodamine-6G was fabricated in the laboratory. When an intense pumping laser light was irradiated to a solid dye, with increasing irradiating time, photodissociation occurred due to the accumulated heat and

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Reichert, W. M., C. J. Bruckner, and Sui-Ren Wan. "Fiber Optic Sensing of Fluorescent Emission from Compressed Cyanine-Dye-Impregnated Fatty Acid Monolayers at the Air/Water Interface." Applied Spectroscopy 42, no. 4 (1988): 605–8. http://dx.doi.org/10.1366/0003702884429292.

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Fluorescence was collected from cyanine-dye-impregnated arachidic acid monolayers at the air/water interface with the use of a fiber optics configuration and a Langmuir film balance. Fatty-acid-to-dye molar ratios in the monolayers ranged from 99:1 to 1:1. The monolayers were compressed in a step-wise manner, with sampling of cyanine fluorescence after each compression step. A drop in fluorescence intensity ranging from 20 to 80% was observed between the uncompressed and compressed monolayers. The observed fluorescence decrease appeared to be a function of barrier pressure rather than molecula

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Hu, Xianhai, Xingyuan Zhang, and Jin Liu. "Synthesis and Optical Performances of a Waterborne Polyurethane-Based Polymeric Dye." International Journal of Polymer Science 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/425083.

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A waterborne polyurethane-based polymeric dye (WPU-CFBB) was synthesized by anchoring 1, 4-bis(methylamino)anthraquinone (CFBB) to waterborne polyurethane chains. The number molecular weight, glass transition temperature, and average emulsion particle size for the polymeric dye were determined, respectively. This polymeric dye exhibited intriguing optical behaviors. The polymeric dye engendered two new absorption bands centered at about 520 nm and 760 nm if compared with CFBB in UV-vis spectra. The 760 nm peak showed hypsochromic shift with the decrease of average particle sizes. The polymeric

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Ogawa, Kazuya, Yasunori Nagatsuka, and Yoshiaki Kobuke. "Synthesis and photophysical properties of doubly porphyrin-substituted cyanine dye." Journal of Porphyrins and Phthalocyanines 15, no. 07n08 (2011): 678–85. http://dx.doi.org/10.1142/s1088424611003616.

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New porphyrin-(cyanine dye) composites, in which two porphyrins are bridged by a cyanine dye through triple bonds, were synthesized. In the UV-vis absorption spectra of the composites, the Soret band and Q-band were red-shifted to 436 and 575–640 nm, respectively. The absorption originating from the cyanine dye portion was also red-shifted from 710 nm to 764 nm, suggesting the expansion of πconjugation over the porphyrin and cyanine dye parts. Fluorescence studies suggested that energy transfer from the porphyrin portion to the cyanine dye moiety occurred. The fluorescence intensity decreased

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De Lima, Sthanley R., Thiago V. Costa, Tácio T. S. Santos, et al. "Optical Characterization of Fluorescent Chitosan-Based Carbon Dots Embedded in Aqueous Natural Dye." Colorants 3, no. 4 (2024): 269–81. http://dx.doi.org/10.3390/colorants3040019.

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(1) Background: This work evaluated the optical characterization of aqueous fluorescent chitosan-based carbon dots (or carbon nanoparticles CNPs) embedded in natural dye for potential functional packaging applications. Chitosan-based materials are nontoxic, biodegradable, biocompatible, bactericidal, and produced from renewable polymer sources. Anthocyanins are pigments of different colors with a large range of potential applications, such as in bioindicators and biomonitoring; (2) Methods: The CNPs were synthetized in aqueous solutions using chitosan as a carbon source. The natural dye was ex

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Kolyvanova, Maria A., Mikhail A. Klimovich, Ekaterina D. Koshevaya, et al. "Chemical Dosimetry Using Bisbenzimidazoles: Solvent-Dependent Fluorescence Response of Hoechst 33258 to Radiation Exposure." Photonics 10, no. 6 (2023): 671. http://dx.doi.org/10.3390/photonics10060671.

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Bisbenzimidazoles have a broad spectrum of potential applications: radioprotectors, drug delivery vectors, antiviral agents, etc. At the same time, they seem to be promising fluorescent probes for radiation measurements. Therefore, in the present work, a fluorescent response to X-ray irradiation of Hoechst 33258, one of the most widely known representatives of the bisbenzimidazole family, was studied for the first time. Irradiation of the dye was performed in aqueous and organic solutions (DMSO and glycerol), as well as in their mixtures. It is shown that the reaction of the dye to radiation e

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