Natural plant precursor for the facile and eco-friendly synthesis of carbon nanodots with multifunctional aspects

Bayat, A. and Masoum, S. and Hosseini, E.S. (2019) Natural plant precursor for the facile and eco-friendly synthesis of carbon nanodots with multifunctional aspects. Journal of Molecular Liquids, 281. pp. 134-140.

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Abstract

In this research, green, low toxicity and good biocompatibility fluorescent carbon dots (CDs) were prepared under one-step hydrothermal conditions from the essential oil of Thymus vulgaris L. as a carbon source. The morphology and composites of the CDs were characterized using transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FTIR). Optical and fluorescence properties of the CDs, such as photostability and the quantum yield as high as 5.2 were measured by UV�Visible and fluorescence spectroscopy. The varying effects of reaction time and temperature were clearly investigated on the yield of products. The fluorescence of CDs could be quenched specifically by Fe 3+ , hence; the prepared CDs were applied to detect Fe 3+ from aqueous solution with a limit of detection of 0.23 mg/L. The effect of cytotoxicity on the cell viability was investigated and low toxicity of these carbon dots was demonstrated. Thus natural-based fluorescent carbon dots as fluorescent biomarkers were applied through in vitro fluorescence imaging without any further purifications. In addition, the antioxidant activity of CDs was carried out with IC 50 value of 23.43 mg/L. © 2019 Elsevier B.V.

Item Type: Article
Additional Information: cited By 0
Uncontrolled Keywords: Antioxidants; Biocompatibility; Carbon; Cytotoxicity; Essential oils; Fluorescence spectroscopy; Fourier transform infrared spectroscopy; High resolution transmission electron microscopy; Nanodots; Thymus; Toxicity, Anti-oxidant activities; Bio-imaging; Carbon dots; Fluorescence probes; Thymus vulgaris L, Fluorescence imaging
Subjects: Chemistry
Divisions: Faculty of Medicine > Basic Sciences > Department of Biochemistry
Depositing User: ART . editor
Date Deposited: 01 May 2019 14:16
Last Modified: 01 May 2019 14:16
URI: http://eprints.kaums.ac.ir/id/eprint/3664

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