Tuning of carbon dots emission color for sensing of Fe 3+ ion and bioimaging applications
- Authors
- Kailasa, Suresh Kumar; Ha, Siyoung; Baek, Seung Hoon; Phan, Le Minh Tu; Kim, Sangjun; Kwak, Kyungwon; Park, Tae Jung
- Issue Date
- May-2019
- Publisher
- Elsevier Ltd
- Keywords
- Fluorescent carbon dots; Fe3+ ion; Cancer cells; Tomato; Fluoresce spectroscopy and microscopy
- Citation
- Materials Science and Engineering C, v.98, pp 834 - 842
- Pages
- 9
- Journal Title
- Materials Science and Engineering C
- Volume
- 98
- Start Page
- 834
- End Page
- 842
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/18538
- DOI
- 10.1016/j.msec.2019.01.002
- ISSN
- 0928-4931
1873-0191
- Abstract
- Herein, we report a facile one-step synthetic strategy for fabrication of three (blue, green and yellow) fluorescent color carbon dots (CDs) from tomato (Solanum lycopersicum). The as-synthesized CDs showed emission peaks at 450, 520 and 560 nm for blue, green and yellow color CDs when excited at 370, 420 and 460 nm, respectively. Using tomato as a carbon source, the fabricated three fluorescent color CDs showed good water dispersity and high quantum yield. The analytical performances of three fluorescent color CDs are evaluated by detecting Fe 3+ ion in biofluids and iron tablets. Upon the addition of Fe 3+ ion under optimal conditions, the fluorescence intensity of three fluorescent color CDs was quenched linearly over the range of 0.1 to 2.0 μM. This method opens a new analytical strategy to quantify Fe 3+ ion in iron tablets and biofluids with high sensitivity. Further, the uptake of three fluorescent color CDs into HeLa cells was confirmed by confocal laser scanning microscopy. Intracellular experiments demonstrated that the three fluorescent color CDs were effectively internalized the cells and show excellent biocompatibility and low toxicity, suggesting that the CDs can be used as good candidates for biomedical applications. © 2019 Elsevier B.V.
- Files in This Item
-
- Appears in
Collections - College of Natural Sciences > Department of Chemistry > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.