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SUPRAMOLECULAR PHOTONICS
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Absorbance of light (190-750 nm) by substance
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Energy levels of molecular orbitals in formaldehyde (HOMO: Highest Occupied Molecular Orbitals; LUMO: Lowest Unoccupied Molecular Orbitals) and possible electronic transitions
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Possible de-excitation pathways of excited molecules
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Fluorescent probes The success of fluorescence as an investigative tool in studying the structure and dynamics of matter or living systems arises from the high sensitivity of fluorometric techniques, the specificity of fluorescence characteristics due to the micro environment of the emitting molecule, and the ability of the latter to provide spatial and temporal information.
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Various parameters influencing the emission of fluorescence
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Information provided by fluorescent probes in various fields
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Fluorescent reagent ( Change the position of fluorescent band ) D. Knapton, M. Burnworth, S. J. Rowan, C. Weder, Angew. Chem. Int. Ed. 2006, 45, 5825–5829
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Fluorescent reagents
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Binding mode Fluorescent reagents for DNA
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Optical methods for intercalation analysis
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Fluorescence microscopy in intercalation analysis
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Fluorescent reagents for DNA
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DNA cleavage reagent
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PCT cation sensors (Photoinduced Charge Transfer) P. Jiang, Z. Guo, Coordination Chemistry Reviews, 248 (2004) 205–229
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PCT cation sensors P. Jiang, Z. Guo, Coordination Chemistry Reviews, 248 (2004) 205–229
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M. H. Keefe, K. D. Benkstein, J. T. Hupp, Coordination Chem. Reviews, 205 (2000) 201–228 LMCT cation sensors (Ligand-Metal Charge Transfer)
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Cyclodextrin-based sensor system
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Excimer-based cation sensors red-shift of the emission spectrum
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Excimer-based cation sensors: sensors: non-cyclic ethers with two naphthalenes
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Calixarene-basedfluorescent molecular sensors for lead ions
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PET systems (Photoinduced Electron Transfer)
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PET system Ru-AB-Re 0.93; 1,17 Redox potentials (V)
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S. Campagna, C. Di Pietro, F. Loiseau, B. Maubert, N. McClenaghan, R. Passalacqua, F. Puntoriero, V. Ricevuto, S. Serroni, Coordination Chem. Reviews, 229 (2002) 67/74 PET system
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Photovoltaic Performance M. Narutaki, K. Takimiya, T. Otsubo, Y. Harima, H. Zhang,Y.Araki, O. Ito, J. Org. Chem. 2006, 71, 1761. Al/ organic film /Au covered electrode Photocurrent generated were measured and converted into the incident photon-to-current conversion efficiencies (IPCE).
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Side view of multilayer organic EL devices and molecular structures of the materials used Materials for OLED A, B, C, and D corresponding to n = 0, 1, 2 and 3 in FlAMB-1n
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Photocontrolled electron transport Lipid bilayer membrane Anthraquinone disulfonic acid disodium salt
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Fluorescence resonance energy transfer
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Materials for fluorescence resonance energy transfer
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Fluorescence resonance energy transfer
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A plug – socket system Switching of photoinduced energy transfer by acid/based controlled plug in/plug out of suitable molecular components
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Dethreading/rethreading of pseudorotaxanes
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A supramolecular system that behaves as a molecular-level extension cable
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Photochemically driven molecular machine R. BALLARDINI,V. BALZANI, A. CREDI, M. T. GANDOLFI, M. VENTURI, Acc. Chem. Res. 2001, 34, 445-455
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Photochemically driven molecular machine
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Photochromic systems
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Photocontrolled complex formation
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Photocontrolled hydrolysis process
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Photochromic systems in industry
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Conclusions Photonics brings together chemists, materials scientists, physicists, and engineers from both academia and industry to create the organic materials for emerging new electronic and photonic technologies.
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