Search Results - "Scaiano, J. C"

Photochemical Strategies for the Facile Synthesis of Gold−Silver Alloy and Core−Shell Bimetallic Nanoparticles by Gonzalez, Carlos Miguel, Liu, Yun, Scaiano, J. C

“…The reduction of HAuCl4 and AgNO3 in aqueous surfactant solutions by 2-hydroxy-2-propyl radical generated by the photochemical cleavage of…”
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The photochemical alkylation and reduction of heteroarenes by McCallum, T, Pitre, S P, Morin, M, Scaiano, J C, Barriault, L

“…The functionalization of heteroarenes has been integral to the structural diversification of medicinally active molecules such as quinolines, pyridines, and…”
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High-Temperature Organic Reactions at Room Temperature Using Plasmon Excitation: Decomposition of Dicumyl Peroxide by Fasciani, Chiara, Alejo, Carlos J. Bueno, Grenier, Michel, Netto-Ferreira, José Carlos, Scaiano, J. C

“…Photoexcitation of gold nanoparticles in their plasmon transition around 530 nm provides the means to carry high-energy reactions at room temperature. In the…”
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Methylene Blue Encapsulation in Cucurbit[7]uril: Laser Flash Photolysis and Near-IR Luminescence Studies of the Interaction with Oxygen by González-Béjar, María, Montes-Navajas, Pedro, García, Hermenegildo, Scaiano, J. C

“…The effect of methylene blue (MB) encapsulation in cucurbit[7]uril (CB[7]) on triplet excited-state behavior and singlet oxygen (1O2) generation has been…”
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Cucurbituril complexes cross the cell membrane by Montes-Navajas, Pedro, González-Béjar, María, Scaiano, J C, García, Hermenegildo

“…Cucurbiturils (CBs) of the appropriate size (CB[7] and CB[8]) form strong guest-host complexes in phosphate buffer solution (PBS) with acridine orange (AO) and…”
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Surface Plasmons Control the Dynamics of Excited Triplet States in the Presence of Gold Nanoparticles by Pacioni, Natalia L, González-Béjar, María, Alarcón, Emilio, McGilvray, Katherine L, Scaiano, J. C

“…Aqueous gold nanoparticles (AuNPs) cause a large increase in the yield of methylene blue triplets (3MB*) obtained upon 650 nm laser excitation as a result of…”
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Opportunistic use of tetrachloroaurate photolysis in the generation of reductive species for the production of gold nanostructures by McGilvray, Katherine L, Granger, Jenna, Correia, Maria, Banks, Jeffrey T, Scaiano, J C

“…The photolysis of gold salts is rarely viewed as the initiation for gold nanoparticle (AuNP) formation. Yet, photolysis of AuCl(4)(-) generates chlorine atoms…”
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Bond Dissociation Energies for Radical Dimers Derived from Highly Stabilized Carbon-Centered Radicals by Frenette, Mathieu, Aliaga, Carolina, Font-Sanchis, Enrique, Scaiano, J. C

“…The temperature dependence of the dissociation of dimers formed from highly stabilized carbon-centered radicals has been examined. Analysis of the data yields…”
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Intrazeolite Photochemistry:  Toward Supramolecular Control of Molecular Photochemistry by Scaiano, J. C, García, Hermenegildo

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Human serum albumin as protecting agent of silver nanoparticles: role of the protein conformation and amine groups in the nanoparticle stabilization by Alarcon, Emilio I., Bueno-Alejo, Carlos J., Noel, Christopher W., Stamplecoskie, Kevin G., Pacioni, Natalia L., Poblete, Horacio, Scaiano, J. C.

“…Thermally denatured human serum albumin interacts with ~3.0 nm spherical AgNP enhancing the fluorescence of Trp-214 at large protein/nanoparticle ratios…”
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Quantitative Determination of Singlet Oxygen Generated by Excited State Aromatic Amino Acids, Proteins, and Immunoglobulins by Chin, Khin K, Trevithick-Sutton, Colleen C, McCallum, Jeremy, Jockusch, Steffen, Turro, Nicholas J, Scaiano, J. C, Foote, Christopher S, Garcia-Garibay, Miguel A

“…Singlet oxygen quantum yields generated by excited state aromatic amino acids (tryptophan, tyrosine, phenylalanine), N-acetylated amino acids…”
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Magnetic Field Control of Photoinduced Silver Nanoparticle Formation by Scaiano, J. C, Aliaga, Carolina, Maguire, Steven, Wang, Dashan

“…The micellar photoreduction of benzophenone in the presence of Ag+ leads to very rapid and efficient formation of silver nanoperticles. External magnetic…”
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Free Radical Sensor Based on CdSe Quantum Dots with Added 4-Amino-2,2,6,6-Tetramethylpiperidine Oxide Functionality by Maurel, Vincent, Laferrière, Marie, Billone, Paul, Godin, Robert, Scaiano, J. C

“…The association and resulting fluorescence quenching of CdSe quantum dots by 4-amino-2,2,6,6-tetramethylpiperidine oxide (4-amino-TEMPO), a persistent…”
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Photophysics and photochemistry of dyes bound to human serum albumin are determined by the dye localization by Alarcón, Emilio, Edwards, Ana Maria, Aspee, Alexis, Moran, Faustino E, Borsarelli, Claudio D, Lissi, Eduardo A, Gonzalez-Nilo, Danilo, Poblete, Horacio, Scaiano, J C

“…The photophysics and photochemistry of rose bengal (RB) and methylene blue (MB) bound to human serum albumin (HSA) have been investigated under a variety of…”
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Reactivity of adrenaline toward alkoxyl radicals and carbonyl triplet states by Cosa, Gonzalo, Scaiano, J C

“…The reactivities of adrenaline toward hydrogen abstraction by the tert-butoxyl radical and the excited triplet state of benzophenone have been examined in…”
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Mapping Photogenerated Radicals in Thin Polymer Films:  Fluorescence Imaging Using a Prefluorescent Radical Probe by Coenjarts, Chris, García, Olga, Llauger, Laura, Palfreyman, J, Vinette, Anne L, Scaiano, J. C

“…Prefluorescent radical probes, in which fluorescence is activated by radical trapping, and photoinitiators were used to detect radical generation in polymer…”
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Photodecarboxylation of Xanthone Acetic Acids:  C−C Bond Heterolysis from the Singlet Excited State by Blake, Jessie A, Gagnon, Eric, Lukeman, Matthew, Scaiano, J. C

“…Irradiation of 2- and 4-xanthone acetic acid in aqueous buffer (pH 7.4) leads to efficient (Φ = 0.67 and 0.64, respectively) photodecarboxylation to give the…”
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Solvent-Independent Antioxidant Activity from Thermally Generated Carbon-Centered Radical Antioxidants by Filippenko, Vasilisa, Frenette, Mathieu, Scaiano, J. C

“…A new and unusual class of chain-breaking antioxidants has been discovered, where the actual antioxidant is, paradoxically, a carbon-centered radical…”
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A New Method to Study Antioxidant Capability:  Hydrogen Transfer from Phenols to a Prefluorescent Nitroxide by Aliaga, Carolina, Aspée, Alexis, Scaiano, J. C

“…Rate constants for hydrogen abstraction from phenols by a prefluorescent-TEMPO probe are reported. The nitroxide is employed as a potential model of peroxyl…”
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Hydrogen-Transfer Reactions from Phenols to TEMPO Prefluorescent Probes in Micellar Systems by Aliaga, Carolina, Juárez-Ruiz, Juan M, Scaiano, J. C, Aspée, Alexis

“…A nitroxide prefluorescent probe has been used to evaluate local reactivity of antioxidants in micellar systems. An apparent rate constant that directly…”
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