DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jang, Jinhyeong | ko |
dc.contributor.author | Kim, Kayoung | ko |
dc.contributor.author | Yoon, Jaeho | ko |
dc.contributor.author | Park, Chan Beum | ko |
dc.date.accessioned | 2020-08-27T01:55:07Z | - |
dc.date.available | 2020-08-27T01:55:07Z | - |
dc.date.created | 2020-08-24 | - |
dc.date.created | 2020-08-24 | - |
dc.date.created | 2020-08-24 | - |
dc.date.issued | 2020-10 | - |
dc.identifier.citation | BIOMATERIALS, v.255 | - |
dc.identifier.issn | 0142-9612 | - |
dc.identifier.uri | http://hdl.handle.net/10203/275991 | - |
dc.description.abstract | Piezoelectric materials can evoke electrochemical reactions by transferring charge carriers to reactants upon receiving mechanical stimuli. We report a newly discovered function of piezoelectric bismuth oxychloride (BiOCl) nanosheets for dissociating Alzheimer's beta-amyloid (A beta) aggregates through ultrasound-induced redox reactions. The accumulation of A beta aggregates (e.g., A beta fibrils, plaques) in the central nervous system is a major pathological hallmark of Alzheimer's disease (AD). Thus, clearing A beta aggregates is considered a key for treating AD, but the dissociation of A beta aggregates is challenging due to their extremely robust structure consisting of beta-sheets. BiOCl nanosheets are a biocompatible piezoelectric material with piezocatalytic activity in response to ultrasound. Our analyses using multiple spectroscopic and microscopic tools have revealed that BiOCl nanosheets effectively disassemble A beta fibrils under ultrasound stimulation. Sono-activated BiOCl nanosheets produce piezo-induced oxidative stress, which effectively destabilizes the beta-sheets in A beta fibrils. In vitro evolution has also shown that sono-activated BiOCl nanosheets can effectively alleviate the neuro-toxicity of A beta fibrils. Furthermore, ex vivo evolution demonstrated that amount of A beta plaques in AD mouse's brain slices was drastically reduced by treatment with sono-activated BiOCl nanosheets. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.title | Piezoelectric materials for ultrasound-driven dissociation of Alzheimer's beta-amyloid aggregate structure | - |
dc.type | Article | - |
dc.identifier.wosid | 000555693800019 | - |
dc.identifier.scopusid | 2-s2.0-85086365953 | - |
dc.type.rims | ART | - |
dc.citation.volume | 255 | - |
dc.citation.publicationname | BIOMATERIALS | - |
dc.identifier.doi | 10.1016/j.biomaterials.2020.120165 | - |
dc.contributor.localauthor | Park, Chan Beum | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Piezoelectric materials | - |
dc.subject.keywordAuthor | BiOCl nanosheets | - |
dc.subject.keywordAuthor | beta-amyloid | - |
dc.subject.keywordAuthor | Alzheimer&apos | - |
dc.subject.keywordAuthor | s disease | - |
dc.subject.keywordPlus | BRAIN-BARRIER SHUTTLE | - |
dc.subject.keywordPlus | HYDROGEN-PEROXIDE | - |
dc.subject.keywordPlus | MAGNETIC NANOPARTICLES | - |
dc.subject.keywordPlus | FIBRIL FORMATION | - |
dc.subject.keywordPlus | SYNAPSE LOSS | - |
dc.subject.keywordPlus | DISEASE | - |
dc.subject.keywordPlus | BIOCL | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | PEPTIDES | - |
dc.subject.keywordPlus | NEURODEGENERATION | - |
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