Search Results - "Turpin, P. Y"
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A comparative study of surface-enhanced Raman scattering from silver-coated anodic aluminum oxide and porous silicon
Published in Journal of Raman spectroscopy (01-01-2011)“…Three types of Ag‐coated arrays from porous anodic aluminum oxide (AAO) were prepared and studied as substrates for surface‐enhanced Raman scattering (SERS)…”
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Ion-Specific Effects on Laser Ablation of Silver in Aqueous Electrolyte Solutions
Published in Journal of physical chemistry. C (27-03-2008)“…Silver nanoparticle hydrosol formation by laser ablation (LA) of a Ag target immersed in pure water and in aqueous electrolyte solutions (HCl, NaCl, NaOH,…”
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Cellular uptake of modified oligonucleotides enhanced by porphyrins studied by time-resolved microspectrofluorimetry and fluorescence imaging techniques
Published in Journal of molecular structure (03-05-2011)“…Fluorescence microimaging and homodyne phase-resolved confocal microspectrofluorimetry were used to monitor the transport of antisense oligonucleotide into 3T3…”
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Formation of SERS-active silver structures on the surface of mesoporous silicon
Published in Journal of applied spectroscopy (01-03-2009)“…We have optimized the procedure for preparation of nanostructured silver films on the surface of mesoporous silicon (PSi) to use them as active substrates in…”
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Multi-frequency quasi-continuous wave solid-state Raman laser for the ultraviolet, visible, and near infrared
Published in Optics communications (15-04-2007)“…An efficient 1kHz barium nitrate Raman laser excited with the second harmonic radiation of a lamp pumped Nd:YAG laser has been developed and its…”
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Porphyrins as SERRS spectral probes of chemically functionalized Ag nanoparticles
Published in Vibrational spectroscopy (18-09-2008)“…The results of surface-enhanced resonance Raman scattering (SERRS) spectral probing of citrate- and/or citric acid-modified Ag nanoparticles by selected…”
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CH2- lengthening of the internucleotide linkage in the ApA dimer can improve its conformational compatibility with its natural polynucleotide counterpart
Published in Nucleic acids research (15-12-2001)“…The complete family of ApA phosphonate analogues with the internucleotide linkage elongated by insertion of a -CH2- group was prepared and the hybridisation…”
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Structural compatibility of novel nucleotide modifications with shortened linkages designed for antigene/antisense therapy
Published in Journal of Raman spectroscopy (01-05-2004)“…The impact of isopolar shortened internucleotide linkage modification on the hybridization properties of potential antisense or antigene oligonucleotides was…”
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SERRS of free base porphyrin in laser-ablated colloids: evidence for three different spectral porphyrin forms
Published in Journal of Raman spectroscopy (01-09-2002)“…We report a new spectral form of 5,10,15,20‐tetrakis(1‐methyl‐4‐pyridyl)porphyrin (H2TMPyP) observed in laser‐ablated Ag colloids. The appearance of this form…”
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Hypericin-Induced Cell Photosensitization Involves an Intracellular pH Decrease
Published in Journal of the American Chemical Society (09-10-1996)“…Snarf-1-AM (Seminaphthorhodafluor-1-acetoxymethylester) being used as a fluorescent pH probe, confocal laser microspectrofluorometric measurements allowed…”
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Structural Features of the UCCG and UGCG Tetraloops in Very Short Hairpins As Evidenced by Optical Spectroscopy
Published in Biochemistry (Easton) (26-05-1998)“…Structures of the UCCG and UGCG tetraloops formed in octamer ribonucleotidic hairpin sequences, i.e., 5‘-r[GC(UCCG)GC]-3‘ and 5‘-r[GC(UGCG)GC]-3‘, have been…”
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Raman spectroscopic study of triplex-like complexes of polyuridylic acid with the isopolar, non-isosteric phosphonate analogues of diadenosine monophosphate
Published in Journal of Raman spectroscopy (01-08-1999)“…The formation of poly(rU) complexes with diadenosine monophosphate (3′–5′) and its four isopolar, non‐isosteric phosphonate analogues was studied by means of…”
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Unusual nucleotide conformations in GNRA and UNCG type tetraloop hairpins: Evidence from Raman markers assignments
Published in Nucleic acids research (01-03-1999)“…High resolution NMR data on UNCG and GNRA tetraloops (where N is any of the four nucleotides and R is a purine) have shown that they contain ribonucleosides…”
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Inhibition and Promotion of the Oxidation Processes of Water-Soluble Cationic Co(II)-Porphyrin Under Its Interaction with Nucleic Acids
Published in Journal of applied spectroscopy (01-07-2005)“…Using the methods of absorption spectroscopy and resonance Raman scattering, we have made a comparative study of water-soluble cationic Co(II)- and…”
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Mechanism of exciplex formation between Cu-porphyrin and calf-thymus DNA as revealed by saturation resonance Raman spectroscopy
Published in Journal of Raman spectroscopy (01-08-1999)“…The excited‐state complex (exciplex) formation that results from the photoinduced interaction of water‐soluble cationic copper(II)…”
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Monitoring of labeled antisense oligonucleotides within living cells by using a multifrequency phase/modulation approach for fluorescence lifetime measurements
Published in Journal of molecular structure (01-06-2003)“…A multifrequency phase/modulation method has been developed for our UV confocal laser microspectrofluorimeter (modulation frequency 1–200 MHz) for fluorescence…”
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Raman study of the triplex-like complex formation of polyuridylic acid and diadenosine monophosphate: influence of nickel ions
Published in Journal of molecular structure (30-05-2001)“…To carry on our investigation on triplex-like complex formation of diadenosine monophosphate (ApA) analogues with polyuridylic acid (polyU), the formation,…”
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Formation and stability of nucleotide complexes: Raman titration investigation
Published in Journal of molecular structure (04-05-1999)“…In order to monitor the formation of complexes between modified and wild type nucleotides, a concept based on spectroscopic titration combined with factor…”
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Concentration dependent behavior of the free base porphyrins in Ag colloid/porphyrin SERS-active system studied via the metalation kinetics
Published in Vibrational spectroscopy (01-04-1999)“…Metalation of 5,10,15,20-tetrakis(1-methyl-4-pyridyl) porphyrin (TMPyP), adsorbed on laser-ablated Ag colloid was investigated as a function of the porphyrin…”
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