The Experts below are selected from a list of 57 Experts worldwide ranked by ideXlab platform
Fang Sun - One of the best experts on this subject based on the ideXlab platform.
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naphthalimide Aryl Sulfide derivative norrish type i photoinitiators with excellent stability to sunlight under near uv led
Macromolecules, 2019Co-Authors: Yanjing Gao, Shengling Jiang, Fang SunAbstract:A series of Norrish type I photoinitiators (NASs), which are naphthalimide Aryl Sulfide derivatives, are prepared. The potential mechanism involved in the photolysis of NASs under UV LED at 405 nm ...
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Naphthalimide Aryl Sulfide Derivative Norrish Type I Photoinitiators with Excellent Stability to Sunlight under Near-UV LED
2019Co-Authors: Yanjing Gao, Shengling Jiang, Fang SunAbstract:A series of Norrish type I photoinitiators (NASs), which are naphthalimide Aryl Sulfide derivatives, are prepared. The potential mechanism involved in the photolysis of NASs under UV LED at 405 nm is investigated by steady-state photolysis, nuclear magnetic resonance, electron spin resonance, fluorescence spectroscopy, cyclic voltammetry, and laser flash photolysis and by calculating the bond dissociation energies of the C–S bonds of NASs. The as-prepared photoinitiators NAS5 and NAS6 can efficiently initiate free radical photopolymerization of (methyl)acrylate monomers under UV LED exposure at 405 nm. NASs/iodonium salt systems can initiate the cationic photopolymerization of epoxide. Interestingly, NASs exhibit an excellent stability to sunlight. Thus, the use of NASs makes the preparation, storage, and application of photocurable formulations convenient
Yanjing Gao - One of the best experts on this subject based on the ideXlab platform.
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naphthalimide Aryl Sulfide derivative norrish type i photoinitiators with excellent stability to sunlight under near uv led
Macromolecules, 2019Co-Authors: Yanjing Gao, Shengling Jiang, Fang SunAbstract:A series of Norrish type I photoinitiators (NASs), which are naphthalimide Aryl Sulfide derivatives, are prepared. The potential mechanism involved in the photolysis of NASs under UV LED at 405 nm ...
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Naphthalimide Aryl Sulfide Derivative Norrish Type I Photoinitiators with Excellent Stability to Sunlight under Near-UV LED
2019Co-Authors: Yanjing Gao, Shengling Jiang, Fang SunAbstract:A series of Norrish type I photoinitiators (NASs), which are naphthalimide Aryl Sulfide derivatives, are prepared. The potential mechanism involved in the photolysis of NASs under UV LED at 405 nm is investigated by steady-state photolysis, nuclear magnetic resonance, electron spin resonance, fluorescence spectroscopy, cyclic voltammetry, and laser flash photolysis and by calculating the bond dissociation energies of the C–S bonds of NASs. The as-prepared photoinitiators NAS5 and NAS6 can efficiently initiate free radical photopolymerization of (methyl)acrylate monomers under UV LED exposure at 405 nm. NASs/iodonium salt systems can initiate the cationic photopolymerization of epoxide. Interestingly, NASs exhibit an excellent stability to sunlight. Thus, the use of NASs makes the preparation, storage, and application of photocurable formulations convenient
Marc M Greenberg - One of the best experts on this subject based on the ideXlab platform.
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photochemical control of dna structure through radical disproportionation
ChemInform, 2014Co-Authors: Joanna Maria San N Pedro, Marc M GreenbergAbstract:An Aryl Sulfide-containing 5,6-dihydropyrimidine (I) is irradiated at 350 nm and gives thymidine and trapping by-products.
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photochemical control of dna structure through radical disproportionation
ChemBioChem, 2013Co-Authors: Joanna Maria San N Pedro, Marc M GreenbergAbstract:: Photolysis of an Aryl Sulfide-containing 5,6-dihydropyrimidine (1) at 350 nm produces high yields of thymidine and products resulting from trapping of a 5,6-dihydrothymidin-5-yl radical by O₂ or thiols. Thymidine is believed to result from disproportionation of the radical pair originally generated from C--S bond homolysis of 1 on the microsecond timescale, which is significantly shorter than other photochemical transformations of modified nucleotides into their native forms. Duplex DNA containing 1 is destabilized, presumably due to disruption of π-stacking. Incorporation of 1 within the binding site of the restriction endonuclease EcoRV provides a photochemical switch for turning on the enzyme's activity. In contrast, 1 is a substrate for endonuclease VIII and serves as a photochemical off switch for this base excision repair enzyme. Modification 1 also modulates the activity of the 10-23 DNAzyme, despite its incorporation into a nonduplex region. Overall, dihydropyrimidine 1 shows promise as a tool to provide spatiotemporal control over DNA structure on the miscrosecond timescale.
Shengling Jiang - One of the best experts on this subject based on the ideXlab platform.
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naphthalimide Aryl Sulfide derivative norrish type i photoinitiators with excellent stability to sunlight under near uv led
Macromolecules, 2019Co-Authors: Yanjing Gao, Shengling Jiang, Fang SunAbstract:A series of Norrish type I photoinitiators (NASs), which are naphthalimide Aryl Sulfide derivatives, are prepared. The potential mechanism involved in the photolysis of NASs under UV LED at 405 nm ...
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Naphthalimide Aryl Sulfide Derivative Norrish Type I Photoinitiators with Excellent Stability to Sunlight under Near-UV LED
2019Co-Authors: Yanjing Gao, Shengling Jiang, Fang SunAbstract:A series of Norrish type I photoinitiators (NASs), which are naphthalimide Aryl Sulfide derivatives, are prepared. The potential mechanism involved in the photolysis of NASs under UV LED at 405 nm is investigated by steady-state photolysis, nuclear magnetic resonance, electron spin resonance, fluorescence spectroscopy, cyclic voltammetry, and laser flash photolysis and by calculating the bond dissociation energies of the C–S bonds of NASs. The as-prepared photoinitiators NAS5 and NAS6 can efficiently initiate free radical photopolymerization of (methyl)acrylate monomers under UV LED exposure at 405 nm. NASs/iodonium salt systems can initiate the cationic photopolymerization of epoxide. Interestingly, NASs exhibit an excellent stability to sunlight. Thus, the use of NASs makes the preparation, storage, and application of photocurable formulations convenient
Joanna Maria San N Pedro - One of the best experts on this subject based on the ideXlab platform.
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photochemical control of dna structure through radical disproportionation
ChemInform, 2014Co-Authors: Joanna Maria San N Pedro, Marc M GreenbergAbstract:An Aryl Sulfide-containing 5,6-dihydropyrimidine (I) is irradiated at 350 nm and gives thymidine and trapping by-products.
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photochemical control of dna structure through radical disproportionation
ChemBioChem, 2013Co-Authors: Joanna Maria San N Pedro, Marc M GreenbergAbstract:: Photolysis of an Aryl Sulfide-containing 5,6-dihydropyrimidine (1) at 350 nm produces high yields of thymidine and products resulting from trapping of a 5,6-dihydrothymidin-5-yl radical by O₂ or thiols. Thymidine is believed to result from disproportionation of the radical pair originally generated from C--S bond homolysis of 1 on the microsecond timescale, which is significantly shorter than other photochemical transformations of modified nucleotides into their native forms. Duplex DNA containing 1 is destabilized, presumably due to disruption of π-stacking. Incorporation of 1 within the binding site of the restriction endonuclease EcoRV provides a photochemical switch for turning on the enzyme's activity. In contrast, 1 is a substrate for endonuclease VIII and serves as a photochemical off switch for this base excision repair enzyme. Modification 1 also modulates the activity of the 10-23 DNAzyme, despite its incorporation into a nonduplex region. Overall, dihydropyrimidine 1 shows promise as a tool to provide spatiotemporal control over DNA structure on the miscrosecond timescale.
