@article{ART003241488},
author={Avinash Kumar and Ishant Kumar and Sandeep Kumar and Amit Sharma and Sharma Amit and Arvind K. Gathania},
title={A dual-mode fluorescent probe for temperature-sensing and metal ions detection based on castor leaves-derived carbon quantum dots},
journal={Carbon Letters},
issn={1976-4251},
year={2025},
volume={35},
number={3},
pages={1097-1112},
doi={10.1007/s42823-024-00847-6}
TY - JOUR
AU - Avinash Kumar
AU - Ishant Kumar
AU - Sandeep Kumar
AU - Amit Sharma
AU - Sharma Amit
AU - Arvind K. Gathania
TI - A dual-mode fluorescent probe for temperature-sensing and metal ions detection based on castor leaves-derived carbon quantum dots
JO - Carbon Letters
PY - 2025
VL - 35
IS - 3
PB - Korean Carbon Society
SP - 1097
EP - 1112
SN - 1976-4251
AB - This study incorporates the formation of carbon quantum dots (CQDs) via a hydrothermal approach, recording the first-time use of castor leaves as a natural precursor. The used precursor offers various benefits including novelty, abundance, elemental composition, and biocompatibility. CQDs were further characterized with multiple techniques including high-resolution transmission electron microscope (HR-TEM), X-ray photoelectron microscopy (XPS), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, UV–visible spectroscopy, Zeta analysis, and optical spectroscopy. They are fundamentally composed of carbon (71.37%), nitrogen (3.91%), and oxygen (24.73%) and are nearly spherical, and uniformly distributed with an average diameter of 2.7 nm. They possess numerous interesting characteristics like broad excitation/emission bands, excitation-sensitive emission, marvelous photostability, reactivity, thermo-sensitivity, etc. A temperature sensor (thermal sensitivity of 0.58% C−1) with repeatability and reversibility of results is also demonstrated. Additionally, they were found selective and sensitive to ions in aqueous solutions. So, they are also utilized as a fluorescent probe for metal ion (Fe3+) sensing. The lowest limit of detection (LOD) value for the current metal ion sensor is 19.1 µM/L.
KW - Carbon quantum dots;Photostability;Ion detection;Temperature-sensing;Thermal sensitivity;Limit of detection
DO - 10.1007/s42823-024-00847-6
ER -
Avinash Kumar, Ishant Kumar, Sandeep Kumar, Amit Sharma, Sharma Amit and Arvind K. Gathania. (2025). A dual-mode fluorescent probe for temperature-sensing and metal ions detection based on castor leaves-derived carbon quantum dots. Carbon Letters, 35(3), 1097-1112.
Avinash Kumar, Ishant Kumar, Sandeep Kumar, Amit Sharma, Sharma Amit and Arvind K. Gathania. 2025, "A dual-mode fluorescent probe for temperature-sensing and metal ions detection based on castor leaves-derived carbon quantum dots", Carbon Letters, vol.35, no.3 pp.1097-1112. Available from: doi:10.1007/s42823-024-00847-6
Avinash Kumar, Ishant Kumar, Sandeep Kumar, Amit Sharma, Sharma Amit, Arvind K. Gathania "A dual-mode fluorescent probe for temperature-sensing and metal ions detection based on castor leaves-derived carbon quantum dots" Carbon Letters 35.3 pp.1097-1112 (2025) : 1097.
Avinash Kumar, Ishant Kumar, Sandeep Kumar, Amit Sharma, Sharma Amit, Arvind K. Gathania. A dual-mode fluorescent probe for temperature-sensing and metal ions detection based on castor leaves-derived carbon quantum dots. 2025; 35(3), 1097-1112. Available from: doi:10.1007/s42823-024-00847-6
Avinash Kumar, Ishant Kumar, Sandeep Kumar, Amit Sharma, Sharma Amit and Arvind K. Gathania. "A dual-mode fluorescent probe for temperature-sensing and metal ions detection based on castor leaves-derived carbon quantum dots" Carbon Letters 35, no.3 (2025) : 1097-1112.doi: 10.1007/s42823-024-00847-6
Avinash Kumar; Ishant Kumar; Sandeep Kumar; Amit Sharma; Sharma Amit; Arvind K. Gathania. A dual-mode fluorescent probe for temperature-sensing and metal ions detection based on castor leaves-derived carbon quantum dots. Carbon Letters, 35(3), 1097-1112. doi: 10.1007/s42823-024-00847-6
Avinash Kumar; Ishant Kumar; Sandeep Kumar; Amit Sharma; Sharma Amit; Arvind K. Gathania. A dual-mode fluorescent probe for temperature-sensing and metal ions detection based on castor leaves-derived carbon quantum dots. Carbon Letters. 2025; 35(3) 1097-1112. doi: 10.1007/s42823-024-00847-6
Avinash Kumar, Ishant Kumar, Sandeep Kumar, Amit Sharma, Sharma Amit, Arvind K. Gathania. A dual-mode fluorescent probe for temperature-sensing and metal ions detection based on castor leaves-derived carbon quantum dots. 2025; 35(3), 1097-1112. Available from: doi:10.1007/s42823-024-00847-6
Avinash Kumar, Ishant Kumar, Sandeep Kumar, Amit Sharma, Sharma Amit and Arvind K. Gathania. "A dual-mode fluorescent probe for temperature-sensing and metal ions detection based on castor leaves-derived carbon quantum dots" Carbon Letters 35, no.3 (2025) : 1097-1112.doi: 10.1007/s42823-024-00847-6
