Work

Sulfur-nitrogen doped carbon dots for Bi³⁺ ion detection and temperature sensing

Year: 2025

Type: article

Abstract: In this work, sulfur-nitrogen doped carbon dots (N,S-CDs) were synthesized through a facile one-step hydrothermal approach using 2-Mercaptopyrimidine and citric acid as precursors. The as-prepared N,S-CDs exhibited a remarkable fluorescence response towards Bi³⁺ ions, achieving highly sensitive detection in the concentration range of 0-45 μM with a detection limit of 230 nM. These findings suggest great potential for the application of N,S-CDs in the detection of real water samples. Furthermore, the N,S-CDs demonstrated an excellent temperature response, showing reversible and recoverable fluorescence characteristics within the temperature range of 25 to 65 °C. The low cytotoxicity and in vitro cellular imaging properties displayed by this carbon dot further contribute to its enhanced functionality and practicality.

Source: Talanta Open

DOI: 10.1016/j.talo.2025.100482

Authors: Zhanbiao He, Zhen Wang, Lu Ga, Jun Ai, Pingping Liu

Institutions: Inner Mongolia Medical University, Inner Mongolia Normal University

Language: English

Topic: Carbon and Quantum Dots Applications

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,190

OpenAlex ID: W4410718675

FWCI: 1.272

Cites: 35

Cited by: 6

Related to: 10