Full metadata record
DC Field | Value | Language |
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dc.citation.number | 1 | - |
dc.citation.startPage | 4133 | - |
dc.citation.title | NATURE COMMUNICATIONS | - |
dc.citation.volume | 13 | - |
dc.contributor.author | Kang, Mingu | - |
dc.contributor.author | Kim, Hyun Woo | - |
dc.contributor.author | Oleiki, Elham | - |
dc.contributor.author | Koo, Yeonjeong | - |
dc.contributor.author | Lee, Hyeongwoo | - |
dc.contributor.author | Joo, Huitae | - |
dc.contributor.author | Choi, Jinseong | - |
dc.contributor.author | Eom, Taeyong | - |
dc.contributor.author | Lee, Geunsik | - |
dc.contributor.author | Suh, Yung Doug | - |
dc.contributor.author | Park, Kyoung-Duck | - |
dc.date.accessioned | 2023-12-21T14:06:38Z | - |
dc.date.available | 2023-12-21T14:06:38Z | - |
dc.date.created | 2022-08-04 | - |
dc.date.issued | 2022-07 | - |
dc.description.abstract | A quantitative single-molecule tip-enhanced Raman spectroscopy (TERS) study at room temperature remained a challenge due to the rapid structural dynamics of molecules exposed to air. Here, we demonstrate the hyperspectral TERS imaging of single or a few brilliant cresyl blue (BCB) molecules at room temperature, along with quantitative spectral analyses. Robust chemical imaging is enabled by the freeze-frame approach using a thin Al2O3 capping layer, which suppresses spectral diffusions and inhibits chemical reactions and contamination in air. For the molecules resolved spatially in the TERS image, a clear Raman peak variation up to 7.5 cm(-1) is observed, which cannot be found in molecular ensembles. From density functional theory-based quantitative analyses of the varied TERS peaks, we reveal the conformational heterogeneity at the single-molecule level. This work provides a facile way to investigate the single-molecule properties in interacting media, expanding the scope of single-molecule vibrational spectroscopy studies. Tip-enhanced vibrational spectroscopy at room temperature is complicated by molecular conformational dynamics, photobleaching, contaminations, and chemical reactions in air. This study demonstrates that a sub-nm protective layer of Al2O3 provides robust conditions for probing single-molecule conformations. | - |
dc.identifier.bibliographicCitation | NATURE COMMUNICATIONS, v.13, no.1, pp.4133 | - |
dc.identifier.doi | 10.1038/s41467-022-31576-x | - |
dc.identifier.issn | 2041-1723 | - |
dc.identifier.scopusid | 2-s2.0-85134196696 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/59068 | - |
dc.identifier.wosid | 000826101400009 | - |
dc.language | 영어 | - |
dc.publisher | NATURE PORTFOLIO | - |
dc.title | Conformational heterogeneity of molecules physisorbed on a gold surface at room temperature | - |
dc.type | Article | - |
dc.description.isOpenAccess | TRUE | - |
dc.relation.journalWebOfScienceCategory | Multidisciplinary Sciences | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | RESOLUTION | - |
dc.subject.keywordPlus | NANOSCALE | - |
dc.subject.keywordPlus | FLUCTUATIONS | - |
dc.subject.keywordPlus | MODES | - |
dc.subject.keywordPlus | SERS | - |
dc.subject.keywordPlus | ENHANCED RAMAN-SPECTROSCOPY | - |
dc.subject.keywordPlus | SINGLE-MOLECULE | - |
dc.subject.keywordPlus | FIELD | - |
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