Detection of ferric ions and catecholamine neurotransmitters via highly fluorescent heteroatom co-doped carbon dots
DC Field | Value | Language |
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dc.contributor.author | Le, Thi Hoa | - |
dc.contributor.author | Lee, Hyun Jong | - |
dc.contributor.author | Kim, Ji Hyeon | - |
dc.contributor.author | Park, Sang Joon | - |
dc.date.available | 2020-08-10T00:36:24Z | - |
dc.date.created | 2020-06-29 | - |
dc.date.issued | 2020-06 | - |
dc.identifier.issn | 1424-8220 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/76189 | - |
dc.description.abstract | Carbon dots (CDs) demonstrate very poor fluorescence quantum yield (QY). In this study, with the help of a hydrothermal method, we combined CDs with nitrogen and phosphorus elements belonging to the VA group (in the periodic table) to form heteroatom co-doped CDs, i.e., nitrogen and phosphorus co-doped carbon dots (NPCDs). These displayed a significant improvement in the QY (up to 84%), which was as much as four times than that of CDs synthesized by the same method. The as-prepared NPCDs could be used as an “off-on” fluorescence detector for the rapid and effective sensing of ferric ions (Fe3+) and catecholamine neurotransmitters (CNs) such as dopamine (DA), adrenaline (AD), and noradrenaline (NAD). The fluorescence of NPCDs was “turned off” and the emission wavelength was slightly red-shifted upon increasing the Fe3+ concentration. However, when CNs were incorporated, the fluorescence of NPCDs was recovered in a short response time; this indicated that CN concentration could be monitored, relying on enhancing the fluorescence signal of NPCDs. As a result, NPCDs are considered as a potential fluorescent bi-sensor for Fe3+ and CN detection. Particularly, in this research, we selected DA as the representative neurotransmitter of the CN group along with Fe3+ to study the sensing system based on NPCDs. The results exhibited good linear ranges with a limit of detection (LOD) of 0.2 and 0.1 µM for Fe3+ and DA, respectively. © 2020 by the authors. Licensee MDPI, Basel, Switzerland. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | MDPI | - |
dc.relation.isPartOf | SENSORS | - |
dc.title | Detection of ferric ions and catecholamine neurotransmitters via highly fluorescent heteroatom co-doped carbon dots | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000552500100001 | - |
dc.identifier.doi | 10.3390/s20123470 | - |
dc.identifier.bibliographicCitation | SENSORS, v.20, no.12 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.scopusid | 2-s2.0-85086708651 | - |
dc.citation.title | SENSORS | - |
dc.citation.volume | 20 | - |
dc.citation.number | 12 | - |
dc.contributor.affiliatedAuthor | Le, Thi Hoa | - |
dc.contributor.affiliatedAuthor | Lee, Hyun Jong | - |
dc.contributor.affiliatedAuthor | Kim, Ji Hyeon | - |
dc.contributor.affiliatedAuthor | Park, Sang Joon | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | Bi-sensor | - |
dc.subject.keywordAuthor | Co-doped carbon dots | - |
dc.subject.keywordAuthor | Improved quantum yield | - |
dc.subject.keywordAuthor | Off-on fluorescence detector | - |
dc.subject.keywordPlus | Amines | - |
dc.subject.keywordPlus | Carbon | - |
dc.subject.keywordPlus | Iron compounds | - |
dc.subject.keywordPlus | Neurophysiology | - |
dc.subject.keywordPlus | Nitrogen | - |
dc.subject.keywordPlus | Norepinephrine | - |
dc.subject.keywordPlus | Phosphorus | - |
dc.subject.keywordPlus | Red Shift | - |
dc.subject.keywordPlus | Emission wavelength | - |
dc.subject.keywordPlus | Fluorescence detector | - |
dc.subject.keywordPlus | Fluorescence quantum yield | - |
dc.subject.keywordPlus | Fluorescence signals | - |
dc.subject.keywordPlus | Hydrothermal methods | - |
dc.subject.keywordPlus | Limit of detection | - |
dc.subject.keywordPlus | Nitrogen and phosphorus | - |
dc.subject.keywordPlus | Short response time | - |
dc.subject.keywordPlus | Fluorescence | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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