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利用海州常山花瓣中的氮掺杂碳点进行高选择性银离子检测。

Highly selective silver ion detection using N-doped carbon dots from Clerodendrum wallichii petals.

作者信息

Thinthasit Aphinya, Kantang Phongsakorn, Khoris Indra Memdi, Nugroho David, Lee Jaebeom, Benchawattananon Rachadaporn, Poonsawat Choosak

机构信息

Department of Integrated Science, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand.

Research Institute of Materials Chemistry, Chungnam National University, Daejeon, 34134, Republic of Korea.

出版信息

Sci Rep. 2025 Jul 1;15(1):20722. doi: 10.1038/s41598-025-07555-9.

DOI:10.1038/s41598-025-07555-9
PMID:40594732
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12214587/
Abstract

The detection of silver ions (Ag) in water is crucial due to their potential toxicity and environmental impact. This study presents a novel fluorescence-based turn-off sensor for Ag detection using nitrogen-doped carbon dots (NCDs) synthesized from Clerodendrum wallichii petals. The NCDs exhibit strong fluorescence, which is selectively quenched upon interaction with Ag enabling highly sensitive and specific detection. The sensor's performance was optimized by investigating various parameters including pH, ionic strength, reaction time, and the presence of masking agents. Real water samples, including lake water, drinking water, and tap water were analyzed showing high recovery rates that confirming the sensor's reliability for environmental monitoring. The developed NCD-based sensor offers a cost-effective, eco-friendly, and highly efficient approach for detecting Ag contamination with potential applications in water quality assessment and environmental protection.

摘要

由于银离子（Ag）具有潜在毒性和环境影响，因此检测水中的银离子至关重要。本研究提出了一种新型的基于荧光猝灭的传感器，用于使用从海州常山花瓣合成的氮掺杂碳点（NCDs）检测银离子。NCDs具有很强的荧光，与Ag相互作用时会选择性猝灭，从而实现高灵敏度和特异性检测。通过研究各种参数，包括pH值、离子强度、反应时间和掩蔽剂的存在，对传感器的性能进行了优化。对包括湖水、饮用水和自来水在内的实际水样进行了分析，结果显示回收率很高，证实了该传感器在环境监测中的可靠性。所开发的基于NCD的传感器为检测Ag污染提供了一种经济高效、环保且高效的方法，在水质评估和环境保护中具有潜在应用价值。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b87c/12214587/3be420aa5611/41598_2025_7555_Figh_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b87c/12214587/57e2e45eb389/41598_2025_7555_Figa_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b87c/12214587/83a826c2f6a5/41598_2025_7555_Figb_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b87c/12214587/58ae97abc798/41598_2025_7555_Figc_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b87c/12214587/149a8a37c702/41598_2025_7555_Figd_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b87c/12214587/110b25759620/41598_2025_7555_Fige_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b87c/12214587/13b242ca9166/41598_2025_7555_Figf_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b87c/12214587/305c511d7da8/41598_2025_7555_Figg_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b87c/12214587/3be420aa5611/41598_2025_7555_Figh_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b87c/12214587/57e2e45eb389/41598_2025_7555_Figa_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b87c/12214587/83a826c2f6a5/41598_2025_7555_Figb_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b87c/12214587/58ae97abc798/41598_2025_7555_Figc_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b87c/12214587/149a8a37c702/41598_2025_7555_Figd_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b87c/12214587/110b25759620/41598_2025_7555_Fige_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b87c/12214587/13b242ca9166/41598_2025_7555_Figf_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b87c/12214587/305c511d7da8/41598_2025_7555_Figg_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b87c/12214587/3be420aa5611/41598_2025_7555_Figh_HTML.jpg

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Highly selective silver ion detection using N-doped carbon dots from Clerodendrum wallichii petals.

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本文引用的文献

[1]
From contamination to detection: The growing threat of heavy metals.

Heliyon. 2025-1-5

[2]
Fe-Doped Red Fluorescent Carbon Dots for Caffeine Analysis in Energy Drinks Using a Paper-Based Sensor.

J Fluoresc. 2024-12-12

[3]
Review on the impact of heavy metals from industrial wastewater effluent and removal technologies.

Heliyon. 2024-11-15

[4]
Carbon dots: synthesis, sensing mechanisms, and potential applications as promising materials for glucose sensors.

Nanoscale Adv. 2024-11-22

[5]
Advanced Nanomaterials for Cancer Therapy: Gold, Silver, and Iron Oxide Nanoparticles in Oncological Applications.

Adv Healthc Mater. 2025-2

[6]
Carbon dots for pathogen detection and imaging: recent breakthroughs and future trends.

Mikrochim Acta. 2024-10-21

[7]
Assessment and bioaccumulation of heavy metal contaminants in Golden Mahseer (Tor putitora Hamilton, 1822).

Sci Total Environ. 2024-11-15

[8]
A Review of Nanotechnology-Enabled Fluorescent Chemosensors for Environmental Toxic Ion Detection.

J Fluoresc. 2024-7-1

[9]
Recent advances and trends in innovative biosensor-based devices for heavy metal ion detection in food.

Compr Rev Food Sci Food Saf. 2024-7

[10]
Research progress in the detection of trace heavy metal ions in food samples.

Front Chem. 2024-5-28

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