| Microwave-assisted synthesis of carbon nanodots through an eggshell membrane and their fluorescent application. | |
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MedLine Citation:
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PMID: 23037913 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Carbon nanodots (C-Dots) as a new form of carbonaceous nanomaterials have aroused much interest and intensive research due to their inspiring properties. Compared to traditional semiconductor quantum dots, these newly emergent nanodots possess a number of advantageous characteristics, among which low-toxicity is particularly fascinating. More and more research into C-Dots have focused on synthesis methods and biology-related applications. Microwave-assisted approaches have attracted attention because microwave treatment can provide intensive and efficient energy, and as a consequence shorten the reaction time. In this article, we designed a "green", rapid, eco-friendly and waste-reused approach to synthesize fluorescent and water-soluble C-Dots from eggshell membrane (ESM) ashes according to a microwave-assisted process. ESM selected as the carbon source was a common protein-rich waste in daily life and can be obtained easily and cheaply. The C-Dots from our method showed the maximal fluorescence emission peak at 450 nm and the fluorescence quantum yield was about 14%. We further designed a sensitive probe for glutathione based on the fluorescence turn off and on of the C-Dots-Cu(2+) system, which showed a linear range of 0.5-80 μmol L(-1) and detection limit of 0.48 μmol L(-1). In general, the C-Dots prepared briefly and inexpensively from ESM revealed excellent fluorescent property with promising potential for applications such as sample detection and biotechnology. |
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Authors:
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Qi Wang; Xing Liu; Lichun Zhang; Yi Lv |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-10-5 |
Journal Detail:
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Title: The Analyst Volume: - ISSN: 1364-5528 ISO Abbreviation: Analyst Publication Date: 2012 Oct |
Date Detail:
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Created Date: 2012-10-5 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0372652 Medline TA: Analyst Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China. lvy@scu.edu.cn. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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