Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Shunichi Fukuzumi | * |
dc.contributor.author | Kei Okubo | * |
dc.date.accessioned | 2016-09-21T01:09:20Z | - |
dc.date.available | 2016-09-21T01:09:20Z | - |
dc.date.issued | 2016 | * |
dc.identifier.issn | 1477-0520 | * |
dc.identifier.issn | 1477-0539 | * |
dc.identifier.other | OAK-19253 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/232283 | - |
dc.description.abstract | The effect of the aluminium ion (Al3+) on the scavenging reaction of a 2,2-diphenyl-1-picrylhydrazyl radical (DPPH center dot), as a reactivity model of reactive oxygen species, with hydroquinone (QH(2)) and its methylated derivatives (Me(n)QH(2), n = 1-4) was investigated using stopped-flow and electrochemical techniques in a hydroalcoholic medium. The second-order rate constants (k) for the DPPH center dot-scavenging reaction of the hydroquinones increased with the increasing number of methyl substituents. Upon addition of Al3+, the k values significantly increased depending on the concentration of Al3+. Such an accelerating effect of Al3+ on the DPPH center dot-scavenging rates of the hydroquinones results from the remarkable positive shift of the one-electron reduction potential (E-red) of DPPH center dot in the presence of Al3+. These results demonstrate that Al3+, a strong Lewis acid, can act as a radical-scavenging promoter by stabilising the one-electron reduced species of the radical, although Al3+ is reported not only to act as a pro-oxidant but also to strongly interact with biomolecules, showing toxicities. | * |
dc.language | English | * |
dc.publisher | ROYAL SOC CHEMISTRY | * |
dc.title | Aluminium ion-promoted radical-scavenging reaction of methylated hydroquinone derivatives | * |
dc.type | Article | * |
dc.relation.issue | 33 | * |
dc.relation.volume | 14 | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.startpage | 7956 | * |
dc.relation.lastpage | 7961 | * |
dc.relation.journaltitle | ORGANIC & BIOMOLECULAR CHEMISTRY | * |
dc.identifier.doi | 10.1039/c6ob01470d | * |
dc.identifier.wosid | WOS:000382061100017 | * |
dc.identifier.scopusid | 2-s2.0-84983289172 | * |
dc.author.google | Nakanishi, Ikuo | * |
dc.author.google | Ohkubo, Kei | * |
dc.author.google | Ogawa, Yukihiro | * |
dc.author.google | Matsumoto, Ken-ichiro | * |
dc.author.google | Ozawa, Toshihiko | * |
dc.author.google | Fukuzumi, Shunichi | * |
dc.contributor.scopusid | Shunichi Fukuzumi(35430038100;58409757400) | * |
dc.contributor.scopusid | Kei Okubo(7101788990) | * |
dc.date.modifydate | 20240401081001 | * |