Dual-Mode Quantitative Immunochromatographic Assay for Highly Sensitive On-Site Detection of Ciprofloxacin in Fish Products

Ciprofloxacin has been extensively utilized in aquaculture due to its remarkable efficacy in preventing and treating bacterial infections in fish animals. However, the widespread application of ciprofloxacin has led to significant residue accumulation, necessitating the development of rapid, sensiti...

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Main Authors: Junqi Shen, Zhengyi Cai, Cheng Zhang, Xinyue Feng, Chenzhi Zhang, Huan Zhao, Chuanlin Yin, Bo Wang, Xiaoping Yu, Biao Zhang
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Foods
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Online Access:https://www.mdpi.com/2304-8158/14/7/1132
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author Junqi Shen
Zhengyi Cai
Cheng Zhang
Xinyue Feng
Chenzhi Zhang
Huan Zhao
Chuanlin Yin
Bo Wang
Xiaoping Yu
Biao Zhang
author_facet Junqi Shen
Zhengyi Cai
Cheng Zhang
Xinyue Feng
Chenzhi Zhang
Huan Zhao
Chuanlin Yin
Bo Wang
Xiaoping Yu
Biao Zhang
author_sort Junqi Shen
collection DOAJ
description Ciprofloxacin has been extensively utilized in aquaculture due to its remarkable efficacy in preventing and treating bacterial infections in fish animals. However, the widespread application of ciprofloxacin has led to significant residue accumulation, necessitating the development of rapid, sensitive and specific detection methods. In this study, we developed a novel dual-mode quantitative immunochromatographic assay based on a portable reader and a photothermal instrument, enabling on-site ciprofloxacin detection. Under optimized conditions, the portable reader mode (Mode 1) achieved a detection range of 0.1–100.0 ng/L with a limit of detection (LOD) of 0.1 ng/mL. The photothermal instrument mode (Mode 2) achieved a detection range of 0.1–500.0 ng/mL with an LOD of 0.1 ng/mL. The sensitivity and accuracy of the method were validated using an Enzyme-Linked Immunosorbent Assay. This developed method successfully detected ciprofloxacin residues in samples of <i>Parabramis pekinensis</i>, <i>Larimichthys crocea</i>, <i>Channa argus</i>, <i>Carassius auratus</i> and <i>Micropterus salmoides</i>, with satisfactory recovery rates. The results demonstrated excellent specificity and applicability across various fish product matrices, offering a reliable and efficient solution for the on-site monitoring of ciprofloxacin residues in fish products.
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spelling doaj-art-a70643a63b564edebaff0c36ee8918b02025-08-20T02:17:00ZengMDPI AGFoods2304-81582025-03-01147113210.3390/foods14071132Dual-Mode Quantitative Immunochromatographic Assay for Highly Sensitive On-Site Detection of Ciprofloxacin in Fish ProductsJunqi Shen0Zhengyi Cai1Cheng Zhang2Xinyue Feng3Chenzhi Zhang4Huan Zhao5Chuanlin Yin6Bo Wang7Xiaoping Yu8Biao Zhang9Key Laboratory of Microbiological Metrology, Measurement & Bio-Product Quality Security, State Administration for Market Regulation, College of Life Sciences, China Jiliang University, Hangzhou 310018, ChinaKey Laboratory of Microbiological Metrology, Measurement & Bio-Product Quality Security, State Administration for Market Regulation, College of Life Sciences, China Jiliang University, Hangzhou 310018, ChinaKey Laboratory of Microbiological Metrology, Measurement & Bio-Product Quality Security, State Administration for Market Regulation, College of Life Sciences, China Jiliang University, Hangzhou 310018, ChinaKey Laboratory of Microbiological Metrology, Measurement & Bio-Product Quality Security, State Administration for Market Regulation, College of Life Sciences, China Jiliang University, Hangzhou 310018, ChinaKey Laboratory of Microbiological Metrology, Measurement & Bio-Product Quality Security, State Administration for Market Regulation, College of Life Sciences, China Jiliang University, Hangzhou 310018, ChinaKey Laboratory of Microbiological Metrology, Measurement & Bio-Product Quality Security, State Administration for Market Regulation, College of Life Sciences, China Jiliang University, Hangzhou 310018, ChinaKey Laboratory of Microbiological Metrology, Measurement & Bio-Product Quality Security, State Administration for Market Regulation, College of Life Sciences, China Jiliang University, Hangzhou 310018, ChinaCollege of Food Science and Engineering, Yangzhou University, Yangzhou 225009, ChinaKey Laboratory of Microbiological Metrology, Measurement & Bio-Product Quality Security, State Administration for Market Regulation, College of Life Sciences, China Jiliang University, Hangzhou 310018, ChinaKey Laboratory of Microbiological Metrology, Measurement & Bio-Product Quality Security, State Administration for Market Regulation, College of Life Sciences, China Jiliang University, Hangzhou 310018, ChinaCiprofloxacin has been extensively utilized in aquaculture due to its remarkable efficacy in preventing and treating bacterial infections in fish animals. However, the widespread application of ciprofloxacin has led to significant residue accumulation, necessitating the development of rapid, sensitive and specific detection methods. In this study, we developed a novel dual-mode quantitative immunochromatographic assay based on a portable reader and a photothermal instrument, enabling on-site ciprofloxacin detection. Under optimized conditions, the portable reader mode (Mode 1) achieved a detection range of 0.1–100.0 ng/L with a limit of detection (LOD) of 0.1 ng/mL. The photothermal instrument mode (Mode 2) achieved a detection range of 0.1–500.0 ng/mL with an LOD of 0.1 ng/mL. The sensitivity and accuracy of the method were validated using an Enzyme-Linked Immunosorbent Assay. This developed method successfully detected ciprofloxacin residues in samples of <i>Parabramis pekinensis</i>, <i>Larimichthys crocea</i>, <i>Channa argus</i>, <i>Carassius auratus</i> and <i>Micropterus salmoides</i>, with satisfactory recovery rates. The results demonstrated excellent specificity and applicability across various fish product matrices, offering a reliable and efficient solution for the on-site monitoring of ciprofloxacin residues in fish products.https://www.mdpi.com/2304-8158/14/7/1132dual-mode quantitative immunochromatographic assayphotothermal immunoassayportable readerciprofloxacinPVP@Pdaquatic product safety
spellingShingle Junqi Shen
Zhengyi Cai
Cheng Zhang
Xinyue Feng
Chenzhi Zhang
Huan Zhao
Chuanlin Yin
Bo Wang
Xiaoping Yu
Biao Zhang
Dual-Mode Quantitative Immunochromatographic Assay for Highly Sensitive On-Site Detection of Ciprofloxacin in Fish Products
Foods
dual-mode quantitative immunochromatographic assay
photothermal immunoassay
portable reader
ciprofloxacin
PVP@Pd
aquatic product safety
title Dual-Mode Quantitative Immunochromatographic Assay for Highly Sensitive On-Site Detection of Ciprofloxacin in Fish Products
title_full Dual-Mode Quantitative Immunochromatographic Assay for Highly Sensitive On-Site Detection of Ciprofloxacin in Fish Products
title_fullStr Dual-Mode Quantitative Immunochromatographic Assay for Highly Sensitive On-Site Detection of Ciprofloxacin in Fish Products
title_full_unstemmed Dual-Mode Quantitative Immunochromatographic Assay for Highly Sensitive On-Site Detection of Ciprofloxacin in Fish Products
title_short Dual-Mode Quantitative Immunochromatographic Assay for Highly Sensitive On-Site Detection of Ciprofloxacin in Fish Products
title_sort dual mode quantitative immunochromatographic assay for highly sensitive on site detection of ciprofloxacin in fish products
topic dual-mode quantitative immunochromatographic assay
photothermal immunoassay
portable reader
ciprofloxacin
PVP@Pd
aquatic product safety
url https://www.mdpi.com/2304-8158/14/7/1132
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