DC Field | Value | Language |
---|---|---|
dc.contributor.author | Chung, You Jung | ko |
dc.contributor.author | Lee, Byung Il | ko |
dc.contributor.author | Park, Chan Beum | ko |
dc.date.accessioned | 2020-01-21T06:20:39Z | - |
dc.date.available | 2020-01-21T06:20:39Z | - |
dc.date.created | 2020-01-21 | - |
dc.date.issued | 2019-04 | - |
dc.identifier.citation | NANOSCALE, v.11, no.13, pp.6297 - 6306 | - |
dc.identifier.issn | 2040-3364 | - |
dc.identifier.uri | http://hdl.handle.net/10203/271669 | - |
dc.description.abstract | The abnormal self-assembly of cerebral -amyloid (A) peptides into toxic aggregates is a hallmark of Alzheimer's disease (AD). Here, we report on multifunctional carbon dots that can chelate Cu(ii) ions, suppress A aggregation, and photooxygenate A peptides. Copper ions have high relevance to AD pathogenesis, causing Cu(ii)-mediated A aggregation and oxidative damage to neuronal cells. For effective conjugation with Cu(ii)-bound A complexes, we have designed carbon dots that possess nitrogen (N)-containing polyaromatic functionalities on their surface by employing o-phenylenediamine (OPD) as a polymerization precursor. We demonstrate that the polymerized OPD (pOPD)-derived carbon dots exhibit multiple capabilities against Cu(ii)-mediated A aggregation. Furthermore, the pOPD-derived carbon dots exhibited dramatically enhanced absorption and fluorescence upon coordination with Cu(ii) ions and effectively photooxygenated A peptides. The photodynamically modulated A residues lost the propensity to coordinate with Cu(ii) and to assemble into toxic aggregates. This work demonstrates the potential of carbon dots as a multifunctional -sheet breaker and provides a promising anti-amyloidogenic strategy for future A-targeted AD treatments. | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Multifunctional carbon dots as a therapeutic nanoagent for modulating Cu(ii)-mediated -amyloid aggregation | - |
dc.type | Article | - |
dc.identifier.wosid | 000464518400050 | - |
dc.identifier.scopusid | 2-s2.0-85063924806 | - |
dc.type.rims | ART | - |
dc.citation.volume | 11 | - |
dc.citation.issue | 13 | - |
dc.citation.beginningpage | 6297 | - |
dc.citation.endingpage | 6306 | - |
dc.citation.publicationname | NANOSCALE | - |
dc.identifier.doi | 10.1039/c9nr00473d | - |
dc.contributor.localauthor | Park, Chan Beum | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | A-BETA AGGREGATION | - |
dc.subject.keywordPlus | ALZHEIMERS-DISEASE | - |
dc.subject.keywordPlus | O-PHENYLENEDIAMINE | - |
dc.subject.keywordPlus | SENSITIVE DETECTION | - |
dc.subject.keywordPlus | OXIDATIVE STRESS | - |
dc.subject.keywordPlus | COPPER-BINDING | - |
dc.subject.keywordPlus | QUANTUM DOTS | - |
dc.subject.keywordPlus | PEPTIDE | - |
dc.subject.keywordPlus | HEME | - |
dc.subject.keywordPlus | PEROXIDASE | - |
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