Facile approach to synthesize highly fluorescent multicolor emissive carbon dots via surface functionalization for cellular imaging
SCIE
SCOPUS
- Title
- Facile approach to synthesize highly fluorescent multicolor emissive carbon dots via surface functionalization for cellular imaging
- Authors
- Aniruddha Kundu; Jungpyo Lee; Byeongho Park; Chaiti Ray; K. Vijaya Sankar; KIM, WOOKSUNG; Soo Hyun Lee; Il-Joo Cho; Seong Chan Jun
- Date Issued
- 2018-03
- Publisher
- ACADEMIC PRESS INC ELSEVIER SCIENCE
- Abstract
- Luminescent nanomaterials are encouraging scaffolds for diverse applications such as chemical sensors and biosensors, imaging, drug delivery, diagnostics, catalysis, energy, photonics, medicine, and so on. Carbon dots (CDs) are a new class of luminescent carbonaceous nanomaterial that have appeared recently and reaped tremendous scientific interest. Herein, we have exploited a simple approach to prepare tuneable and highly fluorescent CDs via surface functionalization. The successful synthesis of CDs is manifested from several investigations like high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). The CDs exhibit excellent water solubility and with increasing nitrogen content fluorescence quantum yield increases whereas cell toxicity decreases. The CD synthesized at high temperature (180 °C) shows very high quantum yield (more than 56%). The tuneable optical properties of CDs are systematically studied using UV-vis and fluorescence spectroscopy. The cell viability evaluation and in vitro imaging study reveals that the synthesized CDs can be employed as a potential fluorescent probe for bio-imaging without further modification.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/41342
- DOI
- 10.1016/j.jcis.2017.10.095
- ISSN
- 0021-9797
- Article Type
- Article
- Citation
- JOURNAL OF COLLOID AND INTERFACE SCIENCE, vol. 513, page. 505 - 514, 2018-03
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