One-Step Synthesis and Characterization of N‑Doped Carbon Nanodots for Sensing in Organic Media

Photoluminescent nitrogen-doped carbon nanodots (N-doped CNDs) soluble in organic media are synthesized in a one-step synthesis from a single-source precursor (an amphiphilic polymer), which exhibits a very high quantum yield (QY = 78%), excitation wavelength-dependent emission, and upconversion emi...

Full description

Saved in:
Bibliographic Details
Published inAnalytical chemistry (Washington) Vol. 88; no. 6; pp. 3178 - 3185
Main Authors Cayuela, Angelina, Carrillo-Carrión, Carolina, Soriano, M. Laura, Parak, Wolfgang J, Valcárcel, Miguel
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 15.03.2016
Subjects
Analytical chemistry
Carbon
Emission spectroscopy
Fluorescence
Media
Nanostructure
Nitrogen
Photoluminescence
Polymers
Quenching
Sensors
Synthesis
Online AccessGet full text

Cover

More Information
Summary:Photoluminescent nitrogen-doped carbon nanodots (N-doped CNDs) soluble in organic media are synthesized in a one-step synthesis from a single-source precursor (an amphiphilic polymer), which exhibits a very high quantum yield (QY = 78%), excitation wavelength-dependent emission, and upconversion emission properties. The evolution of N-doped CND formation is studied via ultraviolet–visible and photoluminescence spectroscopy. Their analytical application as an effective sensor for the direct determination of nitroaromatic explosives and byproducts is shown based on their selective response via a fluorescence quenching mechanism. The proposed method is validated in soil samples by directly using the sensor in organic media without any further treatment or additional functionalization, which is an interesting aspect for practical applications.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0003-2700
1520-6882
DOI:10.1021/acs.analchem.5b04523