FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2164312678> ?p ?o ?g. }

• W2164312678 endingPage "972" @default.
• W2164312678 startingPage "966" @default.
• W2164312678 abstract "The photochemical reactivity of β-Lapachone-3-sulfonic acid (1) towards amino acids, nucleobases or nucleosides has been examined employing the nanosecond laser flash photolysis technique. Excitation (λ = 355 nm) of degassed solutions of 1, in acetonitrile, resulted in the formation of its corresponding triplet excited state. This transient was efficiently quenched by L-tryptophan, L-tryptophan methyl ester, L-tyrosine, L-tyrosine methyl ester and L-cysteine methyl ester (k q ≅ 10(9) L mol-1 s-1). For L-tryptophan, L-tyrosine and their methyl esters new transients were formed in the quenching process, which were assigned to the corresponding radical pairs resulting from an initial electron transfer from the amino acids, or their esters, to the excited quinone, followed by a fast proton transfer. No measurable quenching rate constants could be observed in the presence of thymine or thymidine, in acetonitrile solution, which is probably due to the π π* character of triplet 1 as well as to its low triplet energy. On the other hand, the rate constant obtained when 1 was quenched by 2'-deoxyguanosine is reasonably fast (k q ≅ 10(9) L mol-1 s-1). The quantum efficiency of singlet oxygen (¹O2) formation from 1 was determined employing time-resolved near-IR emission studies upon laser excitation and showed a considerably high value (ΦΔ= 0.7)." @default.
• W2164312678 created "2016-06-24" @default.
• W2164312678 creator A5001364873 @default.
• W2164312678 creator A5009582903 @default.
• W2164312678 creator A5011000471 @default.
• W2164312678 creator A5011671115 @default.
• W2164312678 creator A5032256098 @default.
• W2164312678 creator A5055887854 @default.
• W2164312678 date "2010-01-01" @default.
• W2164312678 modified "2023-10-18" @default.
• W2164312678 title "The photochemical reactivity of triplet β-lapachone-3-sulfonic acid towards biological substrates" @default.
• W2164312678 doi "https://doi.org/10.1590/s0103-50532010000600004" @default.
• W2164312678 hasPublicationYear "2010" @default.
• W2164312678 type Work @default.
• W2164312678 sameAs 2164312678 @default.
• W2164312678 citedByCount "9" @default.
• W2164312678 countsByYear W21643126782012 @default.
• W2164312678 countsByYear W21643126782014 @default.
• W2164312678 countsByYear W21643126782015 @default.
• W2164312678 countsByYear W21643126782017 @default.
• W2164312678 countsByYear W21643126782019 @default.
• W2164312678 countsByYear W21643126782020 @default.
• W2164312678 countsByYear W21643126782021 @default.
• W2164312678 crossrefType "journal-article" @default.
• W2164312678 hasAuthorship W2164312678A5001364873 @default.
• W2164312678 hasAuthorship W2164312678A5009582903 @default.
• W2164312678 hasAuthorship W2164312678A5011000471 @default.
• W2164312678 hasAuthorship W2164312678A5011671115 @default.
• W2164312678 hasAuthorship W2164312678A5032256098 @default.
• W2164312678 hasAuthorship W2164312678A5055887854 @default.
• W2164312678 hasBestOaLocation W21643126781 @default.
• W2164312678 hasConcept C120665830 @default.
• W2164312678 hasConcept C121332964 @default.
• W2164312678 hasConcept C121745418 @default.
• W2164312678 hasConcept C123669783 @default.
• W2164312678 hasConcept C13472781 @default.
• W2164312678 hasConcept C142724271 @default.
• W2164312678 hasConcept C148898269 @default.
• W2164312678 hasConcept C178790620 @default.
• W2164312678 hasConcept C181500209 @default.
• W2164312678 hasConcept C185544564 @default.
• W2164312678 hasConcept C185592680 @default.
• W2164312678 hasConcept C204787440 @default.
• W2164312678 hasConcept C2776706248 @default.
• W2164312678 hasConcept C2776858809 @default.
• W2164312678 hasConcept C2776910235 @default.
• W2164312678 hasConcept C2777463227 @default.
• W2164312678 hasConcept C2777516457 @default.
• W2164312678 hasConcept C32909587 @default.
• W2164312678 hasConcept C515207424 @default.
• W2164312678 hasConcept C520434653 @default.
• W2164312678 hasConcept C540031477 @default.
• W2164312678 hasConcept C552990157 @default.
• W2164312678 hasConcept C55493867 @default.
• W2164312678 hasConcept C62520636 @default.
• W2164312678 hasConcept C71924100 @default.
• W2164312678 hasConcept C75473681 @default.
• W2164312678 hasConcept C76766466 @default.
• W2164312678 hasConcept C91881484 @default.
• W2164312678 hasConcept C93391505 @default.
• W2164312678 hasConcept C95503338 @default.
• W2164312678 hasConceptScore W2164312678C120665830 @default.
• W2164312678 hasConceptScore W2164312678C121332964 @default.
• W2164312678 hasConceptScore W2164312678C121745418 @default.
• W2164312678 hasConceptScore W2164312678C123669783 @default.
• W2164312678 hasConceptScore W2164312678C13472781 @default.
• W2164312678 hasConceptScore W2164312678C142724271 @default.
• W2164312678 hasConceptScore W2164312678C148898269 @default.
• W2164312678 hasConceptScore W2164312678C178790620 @default.
• W2164312678 hasConceptScore W2164312678C181500209 @default.
• W2164312678 hasConceptScore W2164312678C185544564 @default.
• W2164312678 hasConceptScore W2164312678C185592680 @default.
• W2164312678 hasConceptScore W2164312678C204787440 @default.
• W2164312678 hasConceptScore W2164312678C2776706248 @default.
• W2164312678 hasConceptScore W2164312678C2776858809 @default.
• W2164312678 hasConceptScore W2164312678C2776910235 @default.
• W2164312678 hasConceptScore W2164312678C2777463227 @default.
• W2164312678 hasConceptScore W2164312678C2777516457 @default.
• W2164312678 hasConceptScore W2164312678C32909587 @default.
• W2164312678 hasConceptScore W2164312678C515207424 @default.
• W2164312678 hasConceptScore W2164312678C520434653 @default.
• W2164312678 hasConceptScore W2164312678C540031477 @default.
• W2164312678 hasConceptScore W2164312678C552990157 @default.
• W2164312678 hasConceptScore W2164312678C55493867 @default.
• W2164312678 hasConceptScore W2164312678C62520636 @default.
• W2164312678 hasConceptScore W2164312678C71924100 @default.
• W2164312678 hasConceptScore W2164312678C75473681 @default.
• W2164312678 hasConceptScore W2164312678C76766466 @default.
• W2164312678 hasConceptScore W2164312678C91881484 @default.
• W2164312678 hasConceptScore W2164312678C93391505 @default.
• W2164312678 hasConceptScore W2164312678C95503338 @default.
• W2164312678 hasIssue "6" @default.
• W2164312678 hasLocation W21643126781 @default.
• W2164312678 hasOpenAccess W2164312678 @default.
• W2164312678 hasPrimaryLocation W21643126781 @default.
• W2164312678 hasRelatedWork W1608355487 @default.
• W2164312678 hasRelatedWork W1987034082 @default.
• W2164312678 hasRelatedWork W1988667104 @default.

• next