Microwave-assisted synthesis of fluorescent carbon quantum dots from an A2/B3 monomer set

Ari Chae; Yujin Choi; Seongho Jo; Nur'aeni; Peerasak Paoprasert; Sung Young Park; Insik In

doi:10.1039/C6RA28176A

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Microwave-assisted synthesis of fluorescent carbon quantum dots from an A₂/B₃ monomer set†

Ari Chae,^a Yujin Choi,^a Seongho Jo,^a Nur'aeni,^a Peerasak Paoprasert,^d Sung Young Park

*^ac and Insik In

*^ab

Author affiliations

* Corresponding authors

^a Department of IT Convergence (Brain Korea PLUS 21), Korea National University of Transportation, Chungju 380-702, South Korea
E-mail: in1@ut.ac.kr

^b Department of Polymer Science and Engineering, Korea National University of Transportation, Chungju 380-702, South Korea

^c Department of Chemical and Biological Engineering, Korea National University of Transportation, Chungju 380-702, South Korea

^d Department of Chemistry, Faculty of Science and Technology, Thammasat University, Pathumthani 12121, Thailand

Abstract

Strongly fluorescent carbon quantum dots (CQDs) were simply prepared by microwave-assisted synthesis using succinic acid and tris(2-aminoethyl)amine as an “A₂ + B₃” monomer set with a high mass yield of 17.3%. The prepared disc-like CQDs had average lateral dimensions ranging from 5 to 30 nm and a uniform thickness of 6.2 nm. The CQDs showed high solubility in protic polar solvents and demonstrated excitation-dependent emission with a high photoluminescence quantum yield of 49.9%. Because of the excellent cell viability of the CQDs, multicolor fluorescent imaging of cellular media (MDAMB and MDCK cells) was efficiently achieved.

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Article information

DOI: https://doi.org/10.1039/C6RA28176A
Article type: Paper
Submitted: 14 Dec 2016
Accepted: 09 Feb 2017
First published: 22 Feb 2017
This article is Open Access

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RSC Adv., 2017,7, 12663-12669

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Microwave-assisted synthesis of fluorescent carbon quantum dots from an A₂/B₃ monomer set

A. Chae, Y. Choi, S. Jo, Nur'aeni, P. Paoprasert, S. Y. Park and I. In, RSC Adv., 2017, 7, 12663 DOI: 10.1039/C6RA28176A

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