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Title: Preparation of highly luminescent and color tunable carbon nanodots under visible light excitation for in vitro and in vivo bio-imaging

Abstract

Carbon nanodots (CDs) have generated enormous excitement because of their superiority in water solubility, chemical inertness, low toxicity, ease of functionalization and resistance to photobleaching. Here we report a facile thermal pyrolysis route to prepare CDs with high quantum yield (QY) using citric acid as the carbon source and ethylene diamine derivatives (EDAs) including triethylenetetramine (TETA), tetraethylenepentamine (TEPA) and polyene polyamine (PEPA) as the passivation agents. We find that the CDs prepared from EDAs, such as TETA, TEPA and PEPA, show relatively high photoluminescence (PL) QY (11.4, 10.6, and 9.8%, respectively) at 1ex of 465 nm. The cytotoxicity of the CDs has been investigated through in vitro and in vivo bio-imaging studies. The results indicate that these CDs possess low toxicity and good biocompatibility. As a result, the unique properties such as the high PL QY at large excitation wave length and the low toxicity of the resulting CDs make them promising fluorescent nanoprobes for applications in optical bio-imaging and biosensing.

Authors:
 [1];  [2];  [2];  [3];  [3];  [2];  [4];  [5];  [2]
  1. Beijing Univ. of Technology, Beijing (China)
  2. Chinese Academy of Sciences, Jilin, (People's Republic of China)
  3. Chinese Academy of Sciences, Jilin (People's Republic of China)
  4. Beijing Univ. of Technology, Beijing (People's Republic of China); Chinese Academy of Sciences, Jilin, (People's Republic of China)
  5. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Univ. of New Mexico, Albuquerque, NM (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1240098
Report Number(s):
SAND2016-0800J
Journal ID: ISSN 0884-2914; 618955
Grant/Contract Number:  
AC04-94AL85000
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Materials Research
Additional Journal Information:
Journal Volume: 30; Journal Issue: 22; Journal ID: ISSN 0884-2914
Publisher:
Materials Research Society
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Zheng, Min, Li, Jing, Xie, Zhigang, Qu, Dan, Miao, Xiang, Jing, Xiabing, Sun, Zaicheng, Fan, Hongyou, and Liu, Shi. Preparation of highly luminescent and color tunable carbon nanodots under visible light excitation for in vitro and in vivo bio-imaging. United States: N. p., 2015. Web. doi:10.1557/jmr.2015.323.
Zheng, Min, Li, Jing, Xie, Zhigang, Qu, Dan, Miao, Xiang, Jing, Xiabing, Sun, Zaicheng, Fan, Hongyou, & Liu, Shi. Preparation of highly luminescent and color tunable carbon nanodots under visible light excitation for in vitro and in vivo bio-imaging. United States. doi:10.1557/jmr.2015.323.
Zheng, Min, Li, Jing, Xie, Zhigang, Qu, Dan, Miao, Xiang, Jing, Xiabing, Sun, Zaicheng, Fan, Hongyou, and Liu, Shi. Tue . "Preparation of highly luminescent and color tunable carbon nanodots under visible light excitation for in vitro and in vivo bio-imaging". United States. doi:10.1557/jmr.2015.323. https://www.osti.gov/servlets/purl/1240098.
@article{osti_1240098,
title = {Preparation of highly luminescent and color tunable carbon nanodots under visible light excitation for in vitro and in vivo bio-imaging},
author = {Zheng, Min and Li, Jing and Xie, Zhigang and Qu, Dan and Miao, Xiang and Jing, Xiabing and Sun, Zaicheng and Fan, Hongyou and Liu, Shi},
abstractNote = {Carbon nanodots (CDs) have generated enormous excitement because of their superiority in water solubility, chemical inertness, low toxicity, ease of functionalization and resistance to photobleaching. Here we report a facile thermal pyrolysis route to prepare CDs with high quantum yield (QY) using citric acid as the carbon source and ethylene diamine derivatives (EDAs) including triethylenetetramine (TETA), tetraethylenepentamine (TEPA) and polyene polyamine (PEPA) as the passivation agents. We find that the CDs prepared from EDAs, such as TETA, TEPA and PEPA, show relatively high photoluminescence (PL) QY (11.4, 10.6, and 9.8%, respectively) at 1ex of 465 nm. The cytotoxicity of the CDs has been investigated through in vitro and in vivo bio-imaging studies. The results indicate that these CDs possess low toxicity and good biocompatibility. As a result, the unique properties such as the high PL QY at large excitation wave length and the low toxicity of the resulting CDs make them promising fluorescent nanoprobes for applications in optical bio-imaging and biosensing.},
doi = {10.1557/jmr.2015.323},
journal = {Journal of Materials Research},
number = 22,
volume = 30,
place = {United States},
year = {2015},
month = {11}
}

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