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Journal articles on the topic 'Dye coupling'

Author: Grafiati

Published: 9 March 2023

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1

Barcenas, German, Austin Biaggne, Olga A. Mass, William B. Knowlton, Bernard Yurke, and Lan Li. "Molecular Dynamic Studies of Dye–Dye and Dye–DNA Interactions Governing Excitonic Coupling in Squaraine Aggregates Templated by DNA Holliday Junctions." International Journal of Molecular Sciences 24, no. 4 (2023): 4059. http://dx.doi.org/10.3390/ijms24044059.

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Dye molecules, arranged in an aggregate, can display excitonic delocalization. The use of DNA scaffolding to control aggregate configurations and delocalization is of research interest. Here, we applied Molecular Dynamics (MD) to gain an insight on how dye–DNA interactions affect excitonic coupling between two squaraine (SQ) dyes covalently attached to a DNA Holliday junction (HJ). We studied two types of dimer configurations, i.e., adjacent and transverse, which differed in points of dye covalent attachments to DNA. Three structurally different SQ dyes with similar hydrophobicity were chosen to investigate the sensitivity of excitonic coupling to dye placement. Each dimer configuration was initialized in parallel and antiparallel arrangements in the DNA HJ. The MD results, validated by experimental measurements, suggested that the adjacent dimer promotes stronger excitonic coupling and less dye–DNA interaction than the transverse dimer. Additionally, we found that SQ dyes with specific functional groups (i.e., substituents) facilitate a closer degree of aggregate packing via hydrophobic effects, leading to a stronger excitonic coupling. This work advances a fundamental understanding of the impacts of dye–DNA interactions on aggregate orientation and excitonic coupling.

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2

Konishi, Tetsuro. "Dye coupling between mouse Schwann cells." Brain Research 508, no. 1 (1990): 85–92. http://dx.doi.org/10.1016/0006-8993(90)91121-v.

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3

Robinson, S. R., E. C. G. M. Hampson, M. N. Munro, and D. I. Vaney. "Unidirectional dye-coupling between retinal glia." Experimental Eye Research 55 (September 1992): 246. http://dx.doi.org/10.1016/0014-4835(92)91070-e.

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4

Shao, M., A. Gottesman-Davis, A. Popratiloff, and K. D. Peusner. "Dye coupling in developing vestibular nuclei." Journal of Neuroscience Research 86, no. 4 (2008): 832–44. http://dx.doi.org/10.1002/jnr.21541.

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5

Marthy, Hans J�rg, and Brian Dale. "Dye-coupling in the early squid embryo." Roux's Archives of Developmental Biology 198, no. 4 (1989): 211–18. http://dx.doi.org/10.1007/bf00375907.

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6

Jones, C. J., and P. M. Quinton. "Dye-coupling compartments in the human eccrine sweat gland." American Journal of Physiology-Cell Physiology 256, no. 3 (1989): C478—C485. http://dx.doi.org/10.1152/ajpcell.1989.256.3.c478.

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The dye-coupling status of secretory and reabsorptive cells in micro-dissected lengths of human eccrine sweat gland was investigated by means of intracellular microiontophoresis of the fluorescent naphthalimide dye Lucifer yellow CH (Mr 457), which passes through gap junctions. Cells of the reabsorptive duct exhibited complete dye coupling between the apical and basal layers of the epithelium. Conversely, cells of the secretory tubule exhibited selective dye coupling. Of the three cell types present, clear, dark, and myoepithelial, the dark cells were impaled and labeled almost exclusively in the present study. These cells were observed either as single cells or as dye-coupled groups of neighboring dark cells. In no instance were dark cells observed to be dye coupled to clear cells or to myoepithelial cells. Because myoepithelial cells are known to be dye coupled exclusively to neighboring myoepithelial cells, the remaining clear cells must either be uncoupled or show selective dye coupling to neighboring clear cells. The significance of these findings is considered with respect to the regulation and function of the different cell types present in the human eccrine sweat gland.

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7

Onn, S. P., and A. A. Grace. "Dye coupling between rat striatal neurons recorded in vivo: compartmental organization and modulation by dopamine." Journal of Neurophysiology 71, no. 5 (1994): 1917–34. http://dx.doi.org/10.1152/jn.1994.71.5.1917.

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1. The presence of dye coupling between striatal neurons was investigated using in vivo intracellular recording and dye injection in adult rats. In 17% of the cases in which a single striatal neuron was injected with Lucifer yellow, more than one labeled neuron was recovered. In control rats, this dye coupling was observed only between single pairs of medium spiny neurons and only when the neuron injected exhibited the Type II response profile as defined by paired-pulse stimulation of corticostriatal afferents. 2. After intravenous administration of the D1/D2 agonist apomorphine at a behaviorally effective dose (i.e., 0.1–0.3 mg/kg), an increase in the incidence (from 17% to 82% of injected cells) and extent (from 2 cells to 3–7 cells labeled per injection) of dye coupling was observed. This effect was mediated by D2 receptor stimulation because administration of the D2 agonist quinpirole caused similar alterations in the incidence and extent of dye coupling (66% coupled). In contrast, administration of the D1 agonist SKF 38393 or the D1 antagonist SCH 23390 did not result in any significant alteration in dye coupling. 3. In control rats, the entire somatodendritic regions of dye-coupled neurons were found to be localized within single matrix compartments of the striatum. However, after intravenous administration of apomorphine or quinpirole, clusters of dye-coupled neurons were found to extend across the patch/matrix boundary. Moreover, dye coupling was observed after injecting cells exhibiting either the Type I or the Type II response profile. 4. In response to D2 receptor stimulation, both the extent and the pattern of coupling between striatal neurons is altered, resulting in direct coupling between neurons that are otherwise functionally and anatomically segregated in the control animal.

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8

Han, Xiaobo, Fang Li, Zhicong He, et al. "Double Rabi splitting in methylene blue dye-Ag nanocavity." Nanophotonics 11, no. 3 (2022): 603–11. http://dx.doi.org/10.1515/nanoph-2021-0697.

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Abstract We demonstrate a double Rabi splitting totaling 348 meV in an Ag nanocavity embedding of methylene blue (MB) dye layer, which is ascribed to the equilibrium state of monomer and dimer coexistence in MB dye. At low dye concentration, the single-mode strong coupling between the monomer exciton in MB dye and the Ag nanocavity is observed. As the dye concentration is increased, three hybridized plexciton states are observed, indicating a double Rabi splitting (178 and 170 meV). Furthermore, the double anti-crossing behavior of the three hybrid states is observed by tuning the Ag nanocube size, which validates the multi-mode strong coupling regime. It shows clear evidence on the diverse exciton forms of dye molecules, both of which can interact with plasmonic nanocavity, effectively. Therefore, it provides a good candidate for realizing the multi-mode strong coupling.

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9

O'Beirne, Maeve, Andrew G. M. Bulloch, and Brian A. MacVicar. "Dye and electrotonic coupling between cultured hippocampal neurons." Neuroscience Letters 78, no. 3 (1987): 265–70. http://dx.doi.org/10.1016/0304-3940(87)90371-5.

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10

Ransom, B. R., and H. Kettenmann. "Electrical coupling, without dye coupling, between mammalian astrocytes and oligodendrocytes in cell culture." Glia 3, no. 4 (1990): 258–66. http://dx.doi.org/10.1002/glia.440030405.

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11

JOHNSON, DIANNA A., STEPHEN L. MILLS, MICHAEL F. HABERECHT, and STEPHEN C. MASSEY. "Dye coupling in horizontal cells of developing rabbit retina." Visual Neuroscience 17, no. 2 (2000): 255–62. http://dx.doi.org/10.1017/s0952523800172074.

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In the mature rabbit retina, two classes of horizontal cells, A type and B type, provide lateral inhibition in the outer plexiform layer (OPL) and spatially modify the activation of bipolar cells by photoreceptors. Gap junctions connecting homologous horizontal cells determine the extent to which this inhibitory activity spreads laterally across the OPL. Little is currently known about the expression of gap junctions in horizontal cells during postnatal development or how cell–cell coupling might contribute to subsequent maturational events. We have examined the morphological attributes and coupling properties of developing A and B type horizontal cells in neonatal rabbit retina using intracellular injections of Lucifer Yellow and Neurobiotin. Prelabeling with DAPI permitted the targeting of horizontal cell bodies for intracellular injection in perfused preparations of isolated retina. A and B type horizontal cells were identifiable at birth although their dendritic field sizes had not reached adult proportions and their synaptic contacts in the OPL were minimal. Both cell types exhibited homologous dye coupling at birth. Similar to that seen in the adult, no heterologous coupling was observed, and homologous coupling among A type cells was stronger than that observed among B type cells. The spread of tracer compounds through gap junctions of morphologically immature horizontal cells suggests that ions and other small, bioactive compounds may likewise spread through coupled, horizontal networks to coordinate the subsequent maturational of emerging outer plexiform layer pathways.

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12

Serras, F., S. Fraser, and C. M. Chuong. "Asymmetric patterns of gap junctional communication in developing chicken skin." Development 119, no. 1 (1993): 85–96. http://dx.doi.org/10.1242/dev.119.1.85.

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To study the pattern of gap junctional communication in chicken skin and feather development, we injected Lucifer Yellow into single cells and monitored the transfer of the fluorescent dye through gap junctions. Dye coupling is present between cells of the epithelium as well as between cells of the mesoderm. However, dye transfer did not occur equally in all directions and showed several consistent patterns and asymmetries, including: (1) no dye coupling between mesoderm and epithelium, (2) partial restriction of dye coupling at the feather bud/interbud boundary during early feather bud development, (3) preferential distribution of Lucifer Yellow along the anteroposterior axis of the feather placode and (4) absence of dye coupling in some epithelial cells. These results suggest the presence of preferential pathways of communication that may play a role in the patterning of chicken skin.

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13

Lo, C. W., D. Fang, and M. L. Hooper. "Gap-junctional communication in a communication-defective and in a communication-competent teratocarcinoma cell line." Journal of Cell Science 76, no. 1 (1985): 85–95. http://dx.doi.org/10.1242/jcs.76.1.85.

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We examined the gap-junctional communication properties of a communication-defective cell line R5/3 and its communication-competent revertant H2T12. For these studies, we carried out microelectrode impalements to monitor ionic coupling and dye coupling. Our dye-injection experiments revealed that the H2T12 cells are much more efficient in dye coupling than the R5/3 cells. This latter observation is in agreement with the previous finding that the H2T12 cells are much better metabolically coupled than the R5/3 cells. With ionic coupling measurements, however, both cell lines exhibited similar levels of cell-cell coupling. The R5/3 cells demonstrated an ionic coupling coefficient of 0.19 +/− 0.011 (S.E.M.) and H2T12 a coupling coefficient of 0.25 +/− 0.009 (S.E.M.). These results in conjunction with observations from other studies indicate that the different experimental approaches for monitoring gap-junctional communication may have different levels of sensitivity for detecting as opposed to measuring the level of cell-cell coupling.

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14

Zamir, O., and M. Hanani. "Intercellular dye-coupling in intestinal smooth muscle. Are gap junctions required for intercellular coupling?" Experientia 46, no. 10 (1990): 1002–5. http://dx.doi.org/10.1007/bf01940654.

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15

Anders, Stefanie, Daniel Minge, Stephanie Griemsmann, Michel K. Herde, Christian Steinhäuser, and Christian Henneberger. "Spatial properties of astrocyte gap junction coupling in the rat hippocampus." Philosophical Transactions of the Royal Society B: Biological Sciences 369, no. 1654 (2014): 20130600. http://dx.doi.org/10.1098/rstb.2013.0600.

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Gap junction coupling enables astrocytes to form large networks. Its strength determines how easily a signalling molecule diffuses through the network and how far a locally initiated signal can spread. Changes of coupling strength are well-documented during development and in response to various stimuli. Precise quantification of coupling is needed for studying such modifications and their functional consequences. We therefore explored spatial properties of astrocyte coupling in a model simulating dye loading of single astrocytes. Dye spread into the astrocyte network could be characterized by a coupling length constant and coupling anisotropy. In experiments, the fluorescent marker Alexa Fluor 594 was used to measure these parameters in CA1 and dentate gyrus of the rat hippocampus. Coupling did not differ between regions but showed a temperature-dependence, partially owing to changes of intracellular diffusivity, detected by measuring coupling length constants but not the more variable cell counts of dye-coupled astrocytes. We further found that coupling is anisotropic depending on distance to the pyramidal cell layer, which correlated with regional differences of astrocyte morphology. This demonstrates that applying these new analytical approaches provides useful quantitative information on gap junction coupling and its heterogeneity.

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16

Reed, C. M. "Dye coupling in the muscles controlling squid chromatophore expansion." Journal of Experimental Biology 198, no. 12 (1995): 2631–34. http://dx.doi.org/10.1242/jeb.198.12.2631.

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Dye coupling between the cone-shaped radial muscle fibres, which control the expansion and closing of a squid chromatophore organ, was investigated in the squid Loligo vulgaris. Particular attention was paid to the role of the myomuscular junctions located between the muscle fibres. Lucifer Yellow was injected ionophoretically into single muscle fibres under normal artificial sea water (ASW) and under various concentrations of calcium in ASW. Under ASW, 44% of muscle fibres examined were dye-coupled, 82% were coupled under calcium-free sea water and 67% were coupled under sea water containing high concentrations of calcium. Dye transfer was blocked by octanol. Muscle fibres were never seen to link adjacent chromatophore organs. Results are discussed in terms of the role of the myomuscular junctions in the regulation of chromatophore expansion in the living animal.

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17

Sorour, Mohammed I., Kurt A. Kistler, Andrew H. Marcus, and Spiridoula Matsika. "Accurate Modeling of Excitonic Coupling in Cyanine Dye Cy3." Journal of Physical Chemistry A 125, no. 36 (2021): 7852–66. http://dx.doi.org/10.1021/acs.jpca.1c05556.

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18

White, Jeffrey O., and George C. Valley. "Coupling pulsed dye oscillators using a phase conjugate resonator." Applied Optics 27, no. 24 (1988): 5026. http://dx.doi.org/10.1364/ao.27.005026.

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19

Shen, Zhiming, Zhongyang Lu, Pratik Y. Chhatbar, Philip O'Herron, and Prakash Kara. "An artery-specific fluorescent dye for studying neurovascular coupling." Nature Methods 9, no. 3 (2012): 273–76. http://dx.doi.org/10.1038/nmeth.1857.

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20

Rodarte, Andrea L., and Andrea R. Tao. "Plasmon–Exciton Coupling between Metallic Nanoparticles and Dye Monomers." Journal of Physical Chemistry C 121, no. 6 (2017): 3496–502. http://dx.doi.org/10.1021/acs.jpcc.6b08905.

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21

Are´chiga, Hugo, Bibiana Cha´vez, and Raymon M. Glantz. "Dye coupling and gap junctions between crustacean neurosecretory cells." Brain Research 326, no. 1 (1985): 183–87. http://dx.doi.org/10.1016/0006-8993(85)91401-5.

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22

Osamu, Sata, Okada Yukio, Miyamoto Takenori, and Sato Toshihide. "Dye-coupling among frog (Rana catesbeiana) taste disk cells." Comparative Biochemistry and Physiology Part A: Physiology 103, no. 1 (1992): 99–103. http://dx.doi.org/10.1016/0300-9629(92)90247-n.

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23

Haring, John H., Wei Yan, and Kevin M. Faber. "Neuronal dye coupling in the developing rat fascia dentata." Developmental Brain Research 103, no. 2 (1997): 205–8. http://dx.doi.org/10.1016/s0165-3806(97)81797-x.

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24

Kim, Sung Hoon, Young Min Park, Chang Soo Lee, and Young A. Son. "Self-Assembly Fabrication Using Diazo Coupling Dye and Spiroxazine." Molecular Crystals and Liquid Crystals 491, no. 1 (2008): 94–102. http://dx.doi.org/10.1080/15421400802329418.

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25

Meller, Karl, Kerstin Krah, and Carsten Theiss. "Dye coupling in Purkinje cells of organotypic slice cultures." Developmental Brain Research 160, no. 1 (2005): 101–5. http://dx.doi.org/10.1016/j.devbrainres.2005.08.007.

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26

Tang, Ji, Ang Ren, Zhonghao Zhou, and Yong Sheng Zhao. "Strong Exciton–Photon Coupling in Dye‐Doped Polymer Microcavities." Macromolecular Materials and Engineering 305, no. 10 (2020): 2000456. http://dx.doi.org/10.1002/mame.202000456.

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27

Bény, Jean-Louis, and Françoise Gribi. "Dye and electrical coupling of endothelial cells in situ." Tissue and Cell 21, no. 6 (1989): 797–802. http://dx.doi.org/10.1016/0040-8166(89)90030-x.

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28

Basu, Shibani, Keitel Cervantes-Salguero, Bernard Yurke, William B. Knowlton, Jeunghoon Lee, and Olga A. Mass. "Photocrosslinking Probes Proximity of Thymine Modifiers Tethering Excitonically Coupled Dye Aggregates to DNA Holliday Junction." Molecules 27, no. 13 (2022): 4006. http://dx.doi.org/10.3390/molecules27134006.

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A DNA Holliday junction (HJ) has been used as a versatile scaffold to create a variety of covalently templated molecular dye aggregates exhibiting strong excitonic coupling. In these dye-DNA constructs, one way to attach dyes to DNA is to tether them via single long linkers to thymine modifiers incorporated in the core of the HJ. Here, using photoinduced [2 + 2] cycloaddition (photocrosslinking) between thymines, we investigated the relative positions of squaraine-labeled thymine modifiers in the core of the HJ, and whether the proximity of thymine modifiers correlated with the excitonic coupling strength in squaraine dimers. Photocrosslinking between squaraine-labeled thymine modifiers was carried out in two distinct types of configurations: adjacent dimer and transverse dimer. The outcomes of the reactions in terms of relative photocrosslinking yields were evaluated by denaturing polyacrylamide electrophoresis. We found that for photocrosslinking to occur at a high yield, a synergetic combination of three parameters was necessary: adjacent dimer configuration, strong attractive dye–dye interactions that led to excitonic coupling, and an A-T neighboring base pair. The insight into the proximity of dye-labeled thymines in adjacent and transverse configurations correlated with the strength of excitonic coupling in the corresponding dimers. To demonstrate a utility of photocrosslinking, we created a squaraine tetramer templated by a doubly crosslinked HJ with increased thermal stability. These findings provide guidance for the design of HJ-templated dye aggregates exhibiting strong excitonic coupling for exciton-based applications such as organic optoelectronics and quantum computing.

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29

ZIDELL, R., and R. LOCHCARUSO. "A simple dye-coupling assay for evaluating gap junctional communication: The importance of transcription and translation on the establishment of dye-coupling." Cell Biology International Reports 14, no. 7 (1990): 613–28. http://dx.doi.org/10.1016/0309-1651(90)90041-v.

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30

Hanani, Menachem, Anna Caspi, and Vitali Belzer. "Peripheral inflammation augments gap junction-mediated coupling among satellite glial cells in mouse sympathetic ganglia." Neuron Glia Biology 6, no. 1 (2010): 85–89. http://dx.doi.org/10.1017/s1740925x10000025.

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Intercellular coupling by gap junctions is one of the main features of glial cells, but very little is known about this aspect of satellite glial cells (SGCs) in sympathetic ganglia. We used the dye coupling method to address this question in both a prevertebral ganglion (superior mesenteric) and a paravertebral ganglion (superior cervical) of mice. We found that in control ganglia, the incidence of dye coupling among SGCs that form the envelope around a given neuron was 10–20%, and coupling between SGCs around different envelopes was rare (1.5–3%). The dye injections also provided novel information on the structure of SGCs. Following peripheral inflammation, both types of coupling were increased, but most striking was the augmentation of coupling between SGCs forming envelopes around different neurons, which rose by 8–14.6-fold. This effect appeared to be non-systemic, and was blocked by the gap junction blocker carbenoxolone. These changes in SGCs may affect signal transmission and processing in sympathetic ganglia.

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31

Sáez, Pablo J., Kenji F. Shoji, Mauricio A. Retamal, et al. "ATP Is Required and Advances Cytokine-Induced Gap Junction Formation in Microglia In Vitro." Mediators of Inflammation 2013 (2013): 1–16. http://dx.doi.org/10.1155/2013/216402.

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Microglia are the immune cells in the central nervous system. After injury microglia release bioactive molecules, including cytokines and ATP, which modify the functional state of hemichannels (HCs) and gap junction channels (GJCs), affecting the intercellular communication via extracellular and intracellular compartments, respectively. Here, we studied the role of extracellular ATP and several cytokines as modulators of the functional state of microglial HCs and GJCs using dye uptake and dye coupling techniques, respectively. In microglia and the microglia cell line EOC20, ATP advanced the TNF-α/IFN-γ-induced dye coupling, probably through the induction of IL-1βrelease. Moreover, TNF-α/IFN-γ, but not TNF-αplus ATP, increased dye uptake in EOC20 cells. Blockade of Cx43 and Panx1 HCs prevented dye coupling induced by TNF-α/IFN-γ, but not TNF-αplus ATP. In addition, IL-6 prevented the induction of dye coupling and HC activity induced by TNF-α/IFN-γin EOC20 cells. Our data support the notion that extracellular ATP affects the cellular communication between microglia through autocrine and paracrine mechanisms, which might affect the timing of immune response under neuroinflammatory conditions.

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32

Simone, Giuseppina. "Cooperative Molecular Rabi Splitting for Strong Coupling between a Plain Au Layer and an Azo-Dye." Photonics 8, no. 12 (2021): 531. http://dx.doi.org/10.3390/photonics8120531.

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Here, the experimental and numerical results provide evidence of strong coupling between an Au layer and an azo-dye. Strong coupling between the Au and a dye is not easy to observe, so a deep analysis for understanding the physics of the system is carried on. After an accurate analysis of the reflectivity of the plain Au layer as well as after the chromophore adsorption, a hypothesis of strong coupling was advanced. The reflectivity dispersion of system polariton-exciton is characterized by an anti-crossing and two polaritons with a distance that raises with the concentration of the molecules until reaching a condition of saturation, as proof of a non-weak coupling. However, from one side the low-quality factor Q, from the other the optical characteristics of the dye, the strong coupling seems to contradict the achieved results. Then, a possible explanation of these results is that the collective vibrational level structure of the molecules plays a crucial role, and despite the poor conditions of coupling, the matching between the phonons and the excitons reaches an outstanding strength. The emission spectra permitted to characterize the vibrational status of the molecules coupled to the polaritons. Due to the dye adsorption, the surface plasmon frequency shifts, and the Stokes peak splits into two peaks, having a distance bigger than their line width. The strong effect of the collective mechanism of the molecules was described by a hybrid model. Finally, after proving and characterizing the strong coupling, the Raman scattering from such hybridized light-matter states was studied. The coherent nature of the vibro-polariton states increases the Raman scattering cross-section and indicates an enhancement mechanism due to the intrinsic properties of the molecules (e.g., polarizability). Since the light-matter interaction permits the property modulation of materials by confining to small volumes the light field for forming exciton-polariton states, these results provide insight into molecular science.

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33

Pastor, Andrea, Marian Kremer, Thomas Möller, Helmut Kettenmann, and Rolf Dermietzel. "Dye coupling between spinal cord oligodendrocytes: Differences in coupling efficiency between gray and white matter." Glia 24, no. 1 (1998): 108–20. http://dx.doi.org/10.1002/(sici)1098-1136(199809)24:1<108::aid-glia11>3.0.co;2-v.

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34

Walsh, John P., Carlos Cepeda, Chester D. Hull, Robin S. Fisher, Michael S. Levine, and Nathaniel A. Buchwald. "Dye-Coupling in the neostriatum of the rat: II. Decreased coupling between neurons during development." Synapse 4, no. 3 (1989): 238–47. http://dx.doi.org/10.1002/syn.890040309.

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35

PAN, FENG, STEPHEN L. MILLS, and STEPHEN C. MASSEY. "Screening of gap junction antagonists on dye coupling in the rabbit retina." Visual Neuroscience 24, no. 4 (2007): 609–18. http://dx.doi.org/10.1017/s0952523807070472.

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Many cell types in the retina are coupled via gap junctions and so there is a pressing need for a potent and reversible gap junction antagonist. We screened a series of potential gap junction antagonists by evaluating their effects on dye coupling in the network of A-type horizontal cells. We evaluated the following compounds: meclofenamic acid (MFA), mefloquine, 2-aminoethyldiphenyl borate (2-APB), 18-α-glycyrrhetinic acid, 18-β-glycyrrhetinic acid (18-β-GA), retinoic acid, flufenamic acid, niflumic acid, and carbenoxolone. The efficacy of each drug was determined by measuring the diffusion coefficient for Neurobiotin (Mills & Massey, 1998). MFA, 18-β-GA, 2-APB and mefloquine were the most effective antagonists, completely eliminating A-type horizontal cell coupling at a concentration of 200 μM. Niflumic acid, flufenamic acid, and carbenoxolone were less potent. Additionally, carbenoxolone was difficult to wash out and also may be harmful, as the retina became opaque and swollen. MFA, 18-β-GA, 2-APB and mefloquine also blocked coupling in B-type horizontal cells and AII amacrine cells. Because these cell types express different connexins, this suggests that the antagonists were relatively non-selective across several different types of gap junction. It should be emphasized that MFA was water-soluble and its effects on dye coupling were easily reversible. In contrast, the other gap junction antagonists, except carbenoxolone, required DMSO to make stock solutions and were difficult to wash out of the preparation at the doses required to block coupling in A-type HCs. The combination of potency, water solubility and reversibility suggest that MFA may be a useful compound to manipulate gap junction coupling.

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36

Baldridge, William H., and Alexander K. Ball. "Background illumination reduces horizontal cell receptive-field size in both normal and 6-hydroxydopamine-lesioned goldfish retinas." Visual Neuroscience 7, no. 5 (1991): 441–50. http://dx.doi.org/10.1017/s0952523800009731.

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AbstractThe effect of background illumination on horizontal cell receptive-field size and dye coupling was investigated in isolated superfused goldfish retinas. Background illumination reduced both horizontal cell receptive-field size and dye coupling. The effect of light on horizontal cell receptive-field size was mimicked by treating the retina with 20 μM dopamine. To test the hypothesis that the effects of light were due to endogenous dopamine release, the effect of light was studied in goldfish retinas in which dopaminergic interplexiform cells were lesioned using 6-hydroxydopamine treatment. In lesioned retinas, background illumination reduced both horizontal cell receptive-field size and dye coupling. Furthermore, the effect of background illumination on unlesioned animals could not be blocked by prior treatment with the D1 dopamine receptor antagonist SCH-23390. These results suggest that, in goldfish retina, dopamine release is not the only mechanism by which horizontal cell receptive-field size could be reduced by light.

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37

Zweigle, Gregary C., and Jeanne L. McHale. "Theory of Transition–Dipole Coupling in Dye-Sensitized Semiconductor Nanoparticles." Journal of Physical Chemistry C 115, no. 28 (2011): 13693–703. http://dx.doi.org/10.1021/jp1122954.

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38

White, Jeffrey O., George C. Valley, and Ross A. McFarlane. "Coherent coupling of pulsed dye oscillators using nonlinear phase conjugation." Applied Physics Letters 50, no. 14 (1987): 880–82. http://dx.doi.org/10.1063/1.98020.

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39

Motsenbocker, M., H. Masuya, H. Shimazu, T. Miyawaki, Y. Ichimori, and T. Sugawara. "PHOTOACTIVE METHYLENE BLUE DYE DERIVATIVES SUITABLE FOR COUPLING TO PROTEIN." Photochemistry and Photobiology 58, no. 5 (1993): 648–52. http://dx.doi.org/10.1111/j.1751-1097.1993.tb04947.x.

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Kramer, Mark A., Sally Sifuentes, and Christopher M. Clayton. "Phase locking of ring dye lasers using incoherent beam coupling." Applied Optics 27, no. 8 (1988): 1371. http://dx.doi.org/10.1364/ao.27.001371.

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Dominici, Lorenzo, Luigi Vesce, Daniele Colonna, et al. "Angular and prism coupling refractive enhancement in dye solar cells." Applied Physics Letters 96, no. 10 (2010): 103302. http://dx.doi.org/10.1063/1.3328097.

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Oudenhoven, Tracey A., Yongho Joo, Jennifer E. Laaser, Padma Gopalan, and Martin T. Zanni. "Dye aggregation identified by vibrational coupling using 2D IR spectroscopy." Journal of Chemical Physics 142, no. 21 (2015): 212449. http://dx.doi.org/10.1063/1.4921649.

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Margolis, Leonid, Boris Baibakov, Carlos Collin, and Sidney A. Simon. "Dye-coupling in three-dimensional histoculture of rat lingual frenulum." In Vitro Cellular & Developmental Biology - Animal 31, no. 6 (1995): 456–61. http://dx.doi.org/10.1007/bf02634258.

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Schirrmacher, K., F. Br�mmer, R. D�sing, and D. Singmann. "Dye and electric coupling between osteoblast-like cells in culture." Calcified Tissue International 53, no. 1 (1993): 53–60. http://dx.doi.org/10.1007/bf01352015.

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Yang, J., and SD Roper. "Dye-coupling in taste buds in the mudpuppy, Necturus maculosus." Journal of Neuroscience 7, no. 11 (1987): 3561–65. http://dx.doi.org/10.1523/jneurosci.07-11-03561.1987.

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Djahida, Zerrouki, Benhadji Amel, Taleb Ahmed Mourad, Djelal Hayet, and Maachi Rachida. "Treatment of a dye solophenyle 4GE by coupling electrocoagulation / nanofiltration." Membrane Water Treatment 5, no. 4 (2014): 251–63. http://dx.doi.org/10.12989/mwt.2014.5.4.251.

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Krier, G., F. Verdun, and J. F. Muller. "Coupling a tunable dye laser to a LAMMA 500 microprobe." Fresenius' Zeitschrift für analytische Chemie 322, no. 4 (1985): 379–82. http://dx.doi.org/10.1007/bf00481186.

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Antonsen, Brian L., and Donald H. Edwards. "Differential dye coupling reveals lateral giant escape circuit in crayfish." Journal of Comparative Neurology 466, no. 1 (2003): 1–13. http://dx.doi.org/10.1002/cne.10802.

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Sontheimer, H., S. G. Waxman, and B. R. Ransom. "Relationship between Na+ current expression and cell-cell coupling in astrocytes cultured from rat hippocampus." Journal of Neurophysiology 65, no. 4 (1991): 989–1002. http://dx.doi.org/10.1152/jn.1991.65.4.989.

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Abstract:

1. Cell-cell coupling between hippocampal astrocytes in culture was studied by following the intracellular spread of the low molecular weight fluorescent dye Lucifer yellow (LY). Dye coupling appeared as early as 24 h after plating, at which time approximately 20% of all astrocytes that physically contacted neighboring cells showed dye coupling. 2. The percentage of coupled cells increased with time in culture and peaked after 10 days in vitro (DIV) when approximately 50% of astrocytes showed coupling. Further time in culture, up to 20 DIV, did not increase the percentage of coupled cells. Thus, coupled and noncoupled astrocytes coexist in hippocampal cultures in approximately equal numbers. 3. Na+ currents were expressed in a subpopulation of hippocampal astrocytes and changed characteristics during in vitro development. A "neuronal type" of Na+ current, so called because of an h alpha curve that had a midpoint near -60 mV, was observed within the first 5 days post-plating. A "glial type" of Na+ current, characterized by a -25 mV shift in its h alpha curve, was only expressed after 6 days in culture. 4. Na+ current expression was restricted to hippocampal astrocytes that did not exhibit dye coupling; astrocytes that exhibited dye coupling (n = 39) did not show measurable Na+ currents. 5. The failure to see Na+ currents in coupled astrocytes cannot be explained by insufficient space-clamp since astrocytes acutely uncoupled with octanol (10 microM) did not reveal Na+ current expression. Control experiments showed that low concentrations of octanol (i.e., 10-100 microM) did not block Na+ currents; blockage of Na+ currents by octanol was only observed at high concentrations (e.g., 50-fold the concentration used for uncoupling). These observations support the idea that Na(+)-channel expression was restricted to noncoupled astrocytes. 6. The time courses for the development of cell coupling and Na+ current expression appeared to be inversely correlated and suggested a gradual increase in cell coupling in concert with a loss in Na+ current expression with time in culture.

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Tran, Vien Thi, and Heongkyu Ju. "Fluorescence Enhancement via Dual Coupling of Dye Molecules with Silver Nanostructures." Chemosensors 9, no. 8 (2021): 217. http://dx.doi.org/10.3390/chemosensors9080217.

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We demonstrate the enhancement of fluorescence emitted from dye molecules coupled with two surface plasmons, i.e., silver nanoparticles (AgNPs)-induced localized surface plasmons (LSP) and thin silver (Ag) film supported surface plasmons. Excitation light is illuminated to a SiO2 layer that contains both rhodamine 110 molecules and AgNPs. AgNPs enhances excitation rates of dye molecules in their close proximity due to LSP-induced enhancement of local electromagnetic fields at dye excitation wavelengths. Moreover, the SiO2 layer on one surface of which a 50 nm-thick Ag film is coated for metal cladding (air on the other surface), acts as a waveguide core at the dye emission wavelengths. The Ag film induces the surface plasmons which couple with the waveguide modes, resulting in a waveguide-modulated version of surface plasmon coupled emission (SPCE) for different SiO2 thicknesses in a reverse Kretschmann configuration. We find that varying the SiO2 thickness modulates the fluorescent signal of SPCE, its modulation behavior being in agreement with the theoretical simulation of thickness dependent properties of the coupled plasmon waveguide resonance. This enables optimization engineering of the waveguide structure for enhancement of fluorescent signals. The combination of LSP enhanced dye excitation and the waveguide-modulated version of SPCE may offer chances of enhancing fluorescent signals for a highly sensitive fluorescent assay of biomedical and chemical substances.

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