SUPRAMOLECULAR PHOTONICS

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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, 58255829
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Fluorescent reagents
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Fluorescent reagents for DNA
Binding mode
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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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DNA cleavage reagent
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PCT cation sensors (Photoinduced Charge Transfer)
P. Jiang, Z. Guo, Coordination Chemistry Reviews,
248 (2004) 205229
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PCT cation sensors
P. Jiang, Z. Guo, Coordination Chemistry Reviews,
248 (2004) 205229
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LMCT cation sensors (Ligand-Metal Charge Transfer)
M. H. Keefe, K. D. Benkstein, J. T. Hupp,
Coordination Chem. Reviews, 205 (2000) 201228
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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 non-cyclic ethers
with two naphthalenes
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Calixarene-based fluorescent 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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PET system
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
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PET system
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PET system
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Photovoltaic Performance
Al/ organic film /Au covered electrode
Photocurrent generated were measured and
converted into the incident photon-to-current
conversion efficiencies (IPCE).
M. Narutaki, K. Takimiya, T. Otsubo, Y. Harima,
H. Zhang,Y.Araki, O. Ito, J. Org. Chem. 2006, 71,
1761.
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Materials for OLED
Side view of multilayer organic EL devices
and molecular structures of the materials used
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.