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D’Aléo A, Allali M, Picot A, Baldeck PL, Toupet L, Andraud C, Maury O. Sensitization of Eu(III) luminescence by donor-phenylethynyl-functionalized DTPA and DO3A macrocycles. CR CHIM 2010. [DOI: 10.1016/j.crci.2010.01.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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27
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Hayek A, Bolze F, Bourgogne C, Baldeck PL, Didier P, Arntz Y, Mély Y, Nicoud JF. Boron Containing Two-Photon Absorbing Chromophores. 2. Fine Tuning of the One- and Two-Photon Photophysical Properties of Pyrazabole Based Fluorescent Bioprobes. Inorg Chem 2009; 48:9112-9. [DOI: 10.1021/ic900627g] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Lux F, Lerouge F, Bosson J, Lemercier G, Andraud C, Vitrant G, Baldeck PL, Chassagneux F, Parola S. Gold hollow spheres obtained using an innovative emulsion process: towards multifunctional Au nanoshells. NANOTECHNOLOGY 2009; 20:355603. [PMID: 19671982 DOI: 10.1088/0957-4484/20/35/355603] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The tremendous development of materials with fine tuning of their composition, shape, size and chemical functionalities at the nanometer scale has opened a wide range of applications, particularly in medicine. Metallic nanoparticles are extremely interesting for such developments. The fundamental study of surface plasmon resonance (SPR) versus the shape/size of a particle is an important challenge. In this field, we propose a synthetic strategy using an original biphasic emulsion process linked to chemo-reduction of gold salt HAuCl(4). This method allows the preparation of new functional nanocapsules. These nanomaterials are fully characterized.
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Boca SC, Four M, Bonne A, van der Sanden B, Astilean S, Baldeck PL, Lemercier G. An ethylene-glycol decorated ruthenium(ii) complex for two-photon photodynamic therapy. Chem Commun (Camb) 2009:4590-2. [DOI: 10.1039/b907143a] [Citation(s) in RCA: 101] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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D’Aléo A, Picot A, Baldeck PL, Andraud C, Maury O. Design of Dipicolinic Acid Ligands for the Two-Photon Sensitized Luminescence of Europium Complexes with Optimized Cross-Sections. Inorg Chem 2008; 47:10269-79. [DOI: 10.1021/ic8012975] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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31
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Girardot C, Cao B, Mulatier JC, Baldeck PL, Chauvin J, Riehl D, Delaire JA, Andraud C, Lemercier G. Ruthenium(II) Complexes for Two-Photon Absorption-Based Optical Power Limiting. Chemphyschem 2008; 9:1531-5. [DOI: 10.1002/cphc.200800186] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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32
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Bernard R, Barsu C, Baldeck PL, Andraud C, Cornu D, Scharff JP, Miele P. Synthesis, and two photon absorption properties of 7,7′-(iminundecahydro-closo-dodecaborate)-9,9′-(dihexyl)-2,2′-bifluorene. Chem Commun (Camb) 2008:3765-7. [DOI: 10.1039/b804908d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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33
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Andraud C, Fortrie R, Barsu C, Stéphan O, Chermette H, Baldeck PL. Excitonically Coupled Oligomers and Dendrimers for Two-Photon Absorption. PHOTORESPONSIVE POLYMERS II 2008. [DOI: 10.1007/12_2008_158] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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34
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D'Aléo A, Pompidor G, Elena B, Vicat J, Baldeck PL, Toupet L, Kahn R, Andraud C, Maury O. Two-Photon Microscopy and Spectroscopy of Lanthanide Bioprobes. Chemphyschem 2007; 8:2125-32. [PMID: 17847141 DOI: 10.1002/cphc.200700375] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The linear and non-linear photophysical properties of tris-dipicolinate europium and terbium complexes (absorption, emission, lifetime, luminescence induced by two-photon absorption) are studied in the crystalline state as well as in protein derivative crystals and compared to those in solution. Upon laser irradiation at 532 nm, luminescence of terbium is induced by a two-photon antenna effect, whereas luminescence of europium results from one-photon absorption in forbidden f-f transitions. Finally, linear and two-photon microscopy imaging experiments on biological and bio-inspired crystals are performed. These first proof-of-concept experiments open the way for the development of time-resolved non-linear microscopy that should combine the advantages of lanthanide luminescence (long lifetime, sharp emission bands, insensitivity to oxygen) with those of confocal biphotonic excitation (near-IR excitation, 3D resolution and reduced photodamage).
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D'Aléo A, Pompidor G, Elena B, Vicat J, Baldeck PL, Toupet L, Kahn R, Andraud C, Maury O. Cover Picture: Two-Photon Microscopy and Spectroscopy of Lanthanide Bioprobes (ChemPhysChem 14/2007). Chemphyschem 2007. [DOI: 10.1002/cphc.200790045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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36
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Hayek A, Ercelen S, Zhang X, Bolze F, Nicoud JF, Schaub E, Baldeck PL, Mély Y. Conjugation of a New Two-Photon Fluorophore to Poly(ethylenimine) for Gene Delivery Imaging. Bioconjug Chem 2007; 18:844-51. [PMID: 17402707 DOI: 10.1021/bc060362h] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report herein the molecular engineering of an efficient two-photon absorbing (TPA) chromophore based on a donor-donor bis-stilbenyl entity to allow conjugation with biologically relevant molecules. The dye has been functionalized using an isothiocyanate moiety to conjugate it with the amine functions of poly(ethylenimine) (PEI), which is a cationic polymer commonly used for nonviral gene delivery. Upon conjugation, the basic architecture and photophysical properties of the active TPA chromophore remain unchanged. At the usual N/P ratio (ratio of the PEI positive charges to the DNA negative charges) of 10 used for transfection, the transfection efficiency and cytotoxicity of the labeled PEI/DNA complexes were found to be comparable to those of the unlabeled PEI/DNA complexes. Moreover, when used in combination with unlabeled PEI (at a ratio of 1 labeled PEI to 3 unlabeled PEI), the labeled PEI does not affect the size of the complexes with DNA. The labeled PEI was successfully used in two-photon fluorescence correlation spectroscopy measurements, showing that at N/P = 10 most PEI molecules are free and the diffusion coefficient of the complexes is consistent with the 360 nm size measured by quasielastic light scattering. Finally, two-photon images of the labeled PEI/DNA complexes confirmed that the complexes enter into the cytoplasm of HeLa cells by endocytosis and hardly escape from the endosomes. As a consequence, the functionalized TPA chromophore appears to be an adequate tool to label the numerous polyamines used in nonviral gene delivery and characterize their complexes with DNA in two-photon applications.
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Picot A, Malvolti F, Le Guennic B, Baldeck PL, Williams JAG, Andraud C, Maury O. Two-Photon Antenna Effect Induced in Octupolar Europium Complexes. Inorg Chem 2007; 46:2659-65. [PMID: 17348644 DOI: 10.1021/ic062181x] [Citation(s) in RCA: 93] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The synthesis of new chromophore-based pyridine-dicarboxamide ligands and related D3 symmetric europium(III) complexes is described. The photophysical properties of the ligands and the complexes were thoroughly investigated and interpreted on the basis of theoretical calculations (TD-DFT). Finally, the luminescence of Eu(III) was sensitized by two-photon absorption of the ligand, illustrating the two-photon antenna effect phenomenon.
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38
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Colombier I, Spagnoli S, Corval A, Baldeck PL, Giraud M, Leaustic A, Yu P, Irie M. Diarylethene microcrystals make directional jumps upon ultraviolet irradiation. J Chem Phys 2007; 126:011101. [PMID: 17212480 DOI: 10.1063/1.2429061] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Microcrystals of a diarylethene {1,2-bis[5'-methyl-2'-(2"-pyridyl)thiazolyl]perfluorocyclo-pentene} undergo jumps upon photoirradiation. These photochromic crystals present molecular structural changes upon irradiation with ultraviolet light because of reversible photocyclization reactions. When the energy absorbed by crystals reaches about 10 microJ, the uniaxial stress induced in the crystal lattice relaxes through directional jumps. If one prevents crystals from jumping, then parallel, equidistant cracks appear on crystal surfaces. These photomechanical effects could result from a Grinfeld surface instability.
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Girardot C, Lemercier G, Mulatier JC, Chauvin J, Baldeck PL, Andraud C. Novel ruthenium(ii) and zinc(ii) complexes for two-photon absorption related applications. Dalton Trans 2007:3421-6. [PMID: 17664979 DOI: 10.1039/b706715a] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two new fluorene derivatized 1,10-phenanthroline ligands and related tris-chelate Ru(II) or Zn(II) coordination complexes have been synthesised. The linear and nonlinear (two-photon induced fluorescence) photophysical measurements have contributed to highlight the possibility to tune the absorption spectral range and excited lifetime, depending on ligand substitution and nature of the metal. More significantly, the observation of two-photon absorption (TPA) associated with long-lived metal-to-ligand charge-transfer (MLCT) excited states in the Ru(II)-based chromophores, opens a wide range of applications in the near infrared.
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Hayek A, Nicoud JF, Bolze F, Bourgogne C, Baldeck PL. Boron-Containing Two-Photon-Absorbing Chromophores: Electronic Interaction through the Cyclodiborazane Core. Angew Chem Int Ed Engl 2006; 45:6466-9. [PMID: 16952185 DOI: 10.1002/anie.200602266] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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41
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Hayek A, Nicoud JF, Bolze F, Bourgogne C, Baldeck PL. Boron-Containing Two-Photon-Absorbing Chromophores: Electronic Interaction through the Cyclodiborazane Core. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200602266] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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42
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Barsu C, Fortrie R, Nowika K, Baldeck PL, Vial JC, Barsella A, Fort A, Hissler M, Bretonnière Y, Maury O, Andraud C. Synthesis of chromophores combining second harmonic generation and two photon induced fluorescence properties. Chem Commun (Camb) 2006:4744-6. [PMID: 17109056 DOI: 10.1039/b610557b] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The design of new chromophores presenting simultaneous SHG and TPEF properties is reported.
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43
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Bernard R, Cornu D, Scharff JP, Chiriac R, Miele P, Baldeck PL, Caslavský J. Synthesis, Characterization, and UV−vis Linear Absorption of Centrosymmetric π-Systems Incorporating closo-Dodecaborate Clusters. Inorg Chem 2006; 45:8743-8. [PMID: 17029386 DOI: 10.1021/ic060563x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Single- and multibranched centrosymmetric derivatives incorporating B12 clusters [B12H11-N(H)=C(H)-C6H4-C6H4-C(H)=(H)N-B12H11]2- (3) and [1,3,5-(4-(B12H11-N(H)=C(H))-C6H4)-C6H3]3- (5) have been synthesized. Both derivatives were characterized by multinuclear NMR and ESI-MS analyses. To the best of our knowledge, compound 5 is the first example of a multicage derivative bearing three B12 units. Compounds 3 and 5 are only slightly yellowish colored. The UV-vis absorption curves of 3 and 5 show intense absorption bands at 360 and 314 nm, respectively. This result permits us to confirm the strong donor effect of the B12 cluster. The hypsochrome effect observed for compound 5 compared to that of compound 3 confirms the interest in multibranched derivatives for the preparation of two-photon absorption materials active in the visible range.
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Lin CL, Wang I, Dollet B, Baldeck PL. Velocimetry microsensors driven by linearly polarized optical tweezers. OPTICS LETTERS 2006; 31:329-31. [PMID: 16480198 DOI: 10.1364/ol.31.000329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
We report on a new type of single-point velocimetry microsensor that can be positioned in microfluidic devices by use of optical tweezers. The flag-shaped microsensor is readily made by a low-cost two-photon polymerization technique. At rest the linearly polarized optical tweezer traps the microsensor at the focal point, and the flag-plate gets aligned in the polarization direction. Under a fluid flow, the plate rotates to an equilibrium angle that is used to measure the fluid velocity with a micrometer-size spatial resolution. Experimental results are in good agreement with theoretical calculations of optical and hydrodynamic torques on such a flag-shaped microsensor.
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45
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Hayek A, Bolze F, Nicoud JF, Baldeck PL, Mély Y. Synthesis and characterization of water-soluble two-photon excited blue fluorescent chromophores for bioimaging. Photochem Photobiol Sci 2005; 5:102-6. [PMID: 16395434 DOI: 10.1039/b509843b] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report here the synthesis and characterization of a new type of non-ionic blue fluorescent water-soluble chromophores specifically designed for two-photon absorption microscopy. The water solubility is induced by introduction of short oligo(ethylene glycol) monomethyl ether moieties. This work has led to low molecular weight dyes with efficient two-photon absorption cross sections and high fluorescence quantum yield in organic solvents as well as in aqueous solutions.
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46
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Spagnoli S, Block D, Botzung-Appert E, Colombier I, Baldeck PL, Ibanez A, Corval A. Photochromism of Spiropyran Nanocrystals Embedded in Sol−Gel Matrices. J Phys Chem B 2005; 109:8587-91. [PMID: 16852015 DOI: 10.1021/jp046792r] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Spectroscopic and kinetic properties of a new photochromic medium, consisting of nanocrystals of spyropyran molecules (1,3-dihydro-1,3,3,5',6',pentamethyl-spiro[2H-indole-2,2'-[2H]pyrano [3,2-b]pyridinium] iodide) embedded in an organo-silicate sol-gel film, are presented and compared to microcrystals obtained by slow evaporation of a solvent. High photoconversion efficiencies for both kinds of crystals have been observed. In microcrystals, the photomerocyanine form absorbs at 570 nm with a fading rate of 5 h, in nanocrystals the photomerocyanine form absorbs at 535 nm with a fading rate of 41 h. Therefore, the crystalline structure of nanocrystals is different from the microcrystal one.
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47
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Bernard R, Cornu D, Baldeck PL, Cáslavský J, Létoffé JM, Scharff JP, Miele P. Synthesis, characterization and optical properties of π-conjugated systems incorporating closo-dodecaborate clusters: new potential candidates for two-photon absorption processes. Dalton Trans 2005:3065-71. [PMID: 16127501 DOI: 10.1039/b504414f] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Non-centrosymmetric pi-conjugated systems incorporating closo-dodecaborate clusters, [NC-C6H4-C(H=N(H)-B12H11]-(2), [NC-C6H4-C(H)=C(H)-C(6)H(4)-C(H)=N(H)-B12H11]-(3), and [NC-C6H4-C(H)=C(H)-C6H4-C(H)=C(H)-C6H4-C(H)=N(H)-B12H11]-(4) have been synthesized by reaction of the monoamino derivative of B12, [B12H11NH3]-(1), with various arylaldehydes, R-C6H4-CHO. These Schiff base-like compounds were fully characterized by multinuclear NMR spectroscopy and mass spectrometry. In order to evaluate these boron rich pi-systems as potential materials for two-photon absorption (TPA) processes, UV linear absorption curves were recorded for 3 and 4, and comparatively studied with those of the boron-free pi-systems NC-C6H4-C(H)=N-CH3(5) and NC-C6H4-C(H)=C(H)-C6H4-C(H)=N-CH3(6). The donor effect of the boron cluster was evidenced by a shift to the lower energy of the absorption band in the spectra of systems incorporating B12. The two photon absorption (TPA) spectrum of compound , obtained by the up-conversion method, shows a resonance at 720 nm with a cross-section sigma(TPA) of 35 x 10(-50) cm(4) s photon(-1) molecule(-1). This value suggests the potential of B12 clusters to be used as new donor groups for the synthesis of non-linear materials.
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48
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Anémian R, Morel Y, Baldeck PL, Paci B, Kretsch K, Nunzi JM, Andraud C. Optical limiting in the visible range: molecular engineering around N4,N4′-bis(4-methoxyphenyl)-N4,N4′-diphenyl-4,4′-diaminobiphenyl. ACTA ACUST UNITED AC 2003. [DOI: 10.1039/b304619b] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Wang I, Botzung-Appert E, St phan O, Ibanez A, Baldeck PL. Absorption and fluorescence properties of bifluorene crystal and microcrystals. ACTA ACUST UNITED AC 2002. [DOI: 10.1088/1464-4258/4/6/363] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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50
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Wang I, Bouriau M, Baldeck PL, Martineau C, Andraud C. Three-dimensional microfabrication by two-photon-initiated polymerization with a low-cost microlaser. OPTICS LETTERS 2002; 27:1348-1350. [PMID: 18026446 DOI: 10.1364/ol.27.001348] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Fabrication of submicrometer structures by two-photon-initiated polymerization is performed with an inexpensive and low-power microlaser. This is made possible by the design of photoinitiators with strong two-photon absorption cross sections. We analyze the influence of both material properties and irradiation conditions on the two-photon polymerization rate and show that resins based on our highly sensitive two-photon photoinitiator can be solidified with microlaser excitation, whereas commercial UV photoresins require ultrashort and intense laser pulses.
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