Published November 2019
| Version v1
Journal article
A fluorometric method for mercury(II) detection based on the use of pyrophosphate-modified carbon quantum dots
Creators
- 1. Taiyuan University of Technology, Micro-Nano System Research Centre & Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education, College of Information and Computer (China)
- 2. Sungkyunkwan University, Theranostic Macromolecules Research Center, School of Chemical Engineering (Korea, Republic of)
Description
Pyrophosphate-modified carbon quantum dots (PP-CDs) are demonstrated to be a viable fluorescent nanoprobe for mercury(II) (Hg2+) detection. Hg2+ reacts with the pyrophosphate groups on the surface of PP-CDs to form a non-fluorescent complex. This results in quenching of the green fluorescence which has excitation/emission peaks at 400/513 nm. Static quenching is shown to be the dominant mechanism. The probe works in 0.1 μM to 1.4 μM Hg2+ concentration range, and the limit of detection is 2 nM. The PP-CDs were also used to visualize Hg2+ inside human hepatocyte LO2 cells.
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Additional details
Identifiers
Publishing Information
- Journal Title
- Mikrochimica Acta
- Journal Volume
- 186
- Journal Issue
- 11
- Journal Page Range
- p. 1-7
- ISSN
- 0026-3672
- CODEN
- MIACAQ
INIS
- Country of Publication
- Austria
- Country of Input or Organization
- Austria
- INIS RN
- 52067335
- Subject category
- S77: NANOSCIENCE AND NANOTECHNOLOGY; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- CARBON; FLUORESCENCE; FLUORESCENCE SPECTROSCOPY; LIVER CELLS; MERCURY IONS; NANOCHEMISTRY; PYROPHOSPHATES; QUANTUM DOTS
- Descriptors DEC
- ANIMAL CELLS; CHARGED PARTICLES; CHEMISTRY; ELEMENTS; EMISSION; EMISSION SPECTROSCOPY; IONS; LUMINESCENCE; NONMETALS; OXYGEN COMPOUNDS; PHOSPHORUS COMPOUNDS; PHOTON EMISSION; SOMATIC CELLS; SPECTROSCOPY
Optional Information
- Copyright
- Copyright (c) 2019 Springer-Verlag GmbH Austria, part of Springer Nature