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Fluorescence depolarization studies of heteroatom-doped CDs

Chenchiliyan, Manoop LU ; Sadhanala, Hari Krishna ; Sharma, Kusha ; Le Marois, Alix ; Gedanken, Aharon and Fixler, Dror (2019) Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XVI 2019 In Progress in Biomedical Optics and Imaging - Proceedings of SPIE 10891.
Abstract

In this work, we exploited time-resolved fluorescence polarization anisotropy (TRFA) to characterize un-doped and doped carbon dots (CDs). The rotational correlation time related to the size of the particle through classical Stokes-Einstein-Debye equation. The TRFA technique applied in this study achieves picoseconds time resolution, which approximately corresponds to the particle size determination at sub-nanometer precision. The calculated diameter of the CDs from the measured depolarization time constants in aqueous solution is well matches with the actual size of the CDs within the precision. This study proves that the TRFA method is highly complementary with other size determination techniques.

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author
; ; ; ; and
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Carbon dots, Fluorescence anisotropy, Hydrodynamic diameter, Nanoparticle sizing
host publication
Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XVI
series title
Progress in Biomedical Optics and Imaging - Proceedings of SPIE
editor
Nicolau, Dan V. ; Fixler, Dror and Goldys, Ewa M.
volume
10891
article number
108911J
publisher
SPIE
conference name
Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XVI 2019
conference location
San Francisco, United States
conference dates
2019-02-03 - 2019-02-04
external identifiers
  • scopus:85064378047
ISSN
1605-7422
ISBN
9781510624245
DOI
10.1117/12.2508427
language
English
LU publication?
no
additional info
Publisher Copyright: © 2019 SPIE.
id
61936cc8-6653-4e77-bbca-eaa1052ef39b
date added to LUP
2023-06-16 10:39:10
date last changed
2023-06-29 13:55:32
@inproceedings{61936cc8-6653-4e77-bbca-eaa1052ef39b,
  abstract     = {{<p>In this work, we exploited time-resolved fluorescence polarization anisotropy (TRFA) to characterize un-doped and doped carbon dots (CDs). The rotational correlation time related to the size of the particle through classical Stokes-Einstein-Debye equation. The TRFA technique applied in this study achieves picoseconds time resolution, which approximately corresponds to the particle size determination at sub-nanometer precision. The calculated diameter of the CDs from the measured depolarization time constants in aqueous solution is well matches with the actual size of the CDs within the precision. This study proves that the TRFA method is highly complementary with other size determination techniques.</p>}},
  author       = {{Chenchiliyan, Manoop and Sadhanala, Hari Krishna and Sharma, Kusha and Le Marois, Alix and Gedanken, Aharon and Fixler, Dror}},
  booktitle    = {{Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XVI}},
  editor       = {{Nicolau, Dan V. and Fixler, Dror and Goldys, Ewa M.}},
  isbn         = {{9781510624245}},
  issn         = {{1605-7422}},
  keywords     = {{Carbon dots; Fluorescence anisotropy; Hydrodynamic diameter; Nanoparticle sizing}},
  language     = {{eng}},
  publisher    = {{SPIE}},
  series       = {{Progress in Biomedical Optics and Imaging - Proceedings of SPIE}},
  title        = {{Fluorescence depolarization studies of heteroatom-doped CDs}},
  url          = {{http://dx.doi.org/10.1117/12.2508427}},
  doi          = {{10.1117/12.2508427}},
  volume       = {{10891}},
  year         = {{2019}},
}