Smartphone-assisted fluorimetric and colorimetric dual-recognition sensing platform based on nitrogen-doped carbon dots for visual monitoring of acid red 18 in food

Hu，Houwen1; Xing，Haoming1; Wang，Linfan1; Zhang，Ting2; Guo，Guoqiang1,3; Li，Tingting1,3; Wang，Xu1; Chen，Da1

2024-06-01

10.1016/j.dyepig.2024.112098

Dyes and Pigments   影响因子和分区

0143-7208

1873-3743

The widespread presence of acid red 18 (AR18) in the environment has raised concerns about the potential risks on human health and ecosystems. Herein, upon addition of AR18, nitrogen- doped carbon dots (N-CDs) synthesized with catechol and 3, 3-diaminobenzidine exhibit interactive behavior with AR18. Therein, the emission peaks at 490 nm and 410 nm are quenched by internal filtering effect (IFE) and fluorescence resonance energy transfer (FRET). Notably, the former experiences a rapid decline due to robust FRET efficiencies. On this basis, a N-CDs-based fluorimetric and colorimetric sensor is developed for sensitive and selective detection of AR18 in concentrations ranging from 0.053 to 100 μM with a low detection limit (LOD) of 53 nM. In addition, a smartphone-based dual-recognition device, integrated with composite film that enhances liquid collection in determination zone, is aimed at the sensitive detection of AR18 in food samples. The LODs are determined to be 131 nM and 122 nM respectively under fluorimetric and colorimetric conditions. Concomitantly, the device exhibits satisfying accuracy and precision for practical applications. Therefore, this newly developed dual-recognition device provides reliable means to detect the presence of AR18, demonstrating promising potential for on-site monitoring and intelligent sensing applications.

Acid red 18 Dual emission Fluorimetric and colorimetric detection Nitrogen-doped carbon dots Visualization

SCI ; EI

英语

其他

CHEMISTRY

2-s2.0-85188925685

Scopus

1.Department of Microelectronic Science and Engineering,School of Physical Science and Technology,Ningbo University,Ningbo,315211,China
2.Department of Chemical Engineering,Ningbo Polytechnic,Ningbo,315800,China
3.Department of Materials Science and Engineering,Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG),Southern University of Science and Technology,Shenzhen,518055,China

Hu，Houwen,Xing，Haoming,Wang，Linfan,et al. Smartphone-assisted fluorimetric and colorimetric dual-recognition sensing platform based on nitrogen-doped carbon dots for visual monitoring of acid red 18 in food[J]. Dyes and Pigments,2024,225.

Hu，Houwen.,Xing，Haoming.,Wang，Linfan.,Zhang，Ting.,Guo，Guoqiang.,...&Chen，Da.(2024).Smartphone-assisted fluorimetric and colorimetric dual-recognition sensing platform based on nitrogen-doped carbon dots for visual monitoring of acid red 18 in food.Dyes and Pigments,225.

Hu，Houwen,et al."Smartphone-assisted fluorimetric and colorimetric dual-recognition sensing platform based on nitrogen-doped carbon dots for visual monitoring of acid red 18 in food".Dyes and Pigments 225(2024).