1
|
Vijeata A, Chaudhary GR, Chaudhary S. Lateral flow assemblies and allied application of carbon quantum dots derived from cigarette tobacco in biosensing, anticounterfeiting and fluorescent films: Theoretical and experimental overview. CHEMOSPHERE 2024; 355:141812. [PMID: 38554865 DOI: 10.1016/j.chemosphere.2024.141812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 03/13/2024] [Accepted: 03/25/2024] [Indexed: 04/02/2024]
Abstract
The bio-sensing activity of fluorescence based nanoprobes is one of the most significant aspects to scrutinize the analytical pursuance in modern security and lateral flow assays. Herein, potent transmogrification of waste cigarette tobacco into fluorescent carbon quantum dots (CQDs) has been achieved by calcination approach. The waste transformation to CQDs holds diverse benefits, comprising high quantum yield, low toxicity and scale up synthesis. The developed CQDs were able to identify tetracycline with phenomenal selectivity and sensitivity through fluorescence based method. The sensing mechanism was fully explored using Density Functional Theory (DFT) and Molecular docking studies. Governing features comprising tetracycline concentration, interfering studies, and real water analysis on the identification of tetracycline were also investigated. Along with, the prepared CQDs act as colorimetric probe, facilitating the detection of tetracycline with the naked eye. The lateral flow device was constructed for the on-site detection of tetracycline in real water samples. To the best of our knowledge, the present work represents a novel approach to designing CQDs and demonstrates their significant potential for application in anticounterfeiting measures and lateral flow devices. This work holds significant prospective as the prepared CQDs was fully utilized to its maximum usage in developing films and fluorescent anti-counterfeiting applications. Concisely, current work opens up distinctive opportunities for rapid on-site, real-time and visualized surveillance of tetracycline using CQDs prepared with a quite simple green approach.
Collapse
Affiliation(s)
- Anjali Vijeata
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Ganga Ram Chaudhary
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Savita Chaudhary
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India.
| |
Collapse
|
2
|
Li Y, Feng K, Li M, Li H, Zhang W, Yang X, Chen Y, Zheng L, Hsieh S, Yan B. A dual-mode ratiometric probe using europium-doped cyclen-functional carbon dots for fluorescent and point-of-care detection of tetracycline. ENVIRONMENTAL TECHNOLOGY 2024:1-9. [PMID: 38522072 DOI: 10.1080/09593330.2024.2323027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 02/18/2024] [Indexed: 03/26/2024]
Abstract
The overuse of tetracycline (TC) has led to the accumulation of antibiotic residues in drinking water and animal products, which can consequently lead to bacteria resistance and chronic disease in humans. Urgently addressing the need for a rapid, user-friendly, and point-of-care test for TC detection. In this work, we use cyclen and citric acid to synthesise carbon dots (CDs) with a unique ring-shaped structure on their surface and combine them with europium (Eu3+) to form an Eu-CDs fluorescent probe. In the presence of TC in aqueous systems, the Eu-CDs probe emits two distinctive fluorescent signals: the stable blue emission from cyclen-modified CDs and the red emission from Eu3+,showing a proportional increase with TC concentration. The developed Eu-CDs probe demonstrates accurate and selective detection capabilities for TC class antibiotics among various interfering factors. The Eu-CDs probe exhibits excellent linearity within the concentration range of 0.04-2.4 µM and achieves an impressive detection limit of 2.7 nM. Moreover, point-of-care Eu-CDs test strips are designed, allowing convenient on-site TC analysis through the detection of a colour change from blue to red under a portable UV light. The results highlight the effectiveness of the proposed dual-mode ratiometric fluorescent Eu-CDs probe and test strips, offering a practical point-of-care testing strategy for real-world TC detection applications.
Collapse
Affiliation(s)
- Yuanhua Li
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou, People's Republic of China
- Guangdong Provincial Key Laboratory of Electronic Functional Materials and Devices, Huizhou University, Huizhou, People's Republic of China
| | - Kejun Feng
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou, People's Republic of China
| | - Mingzhu Li
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Material of Guangdong Province, Shantou University, Guangdong, People's Republic of China
| | - Huiling Li
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou, People's Republic of China
| | - Weiluo Zhang
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou, People's Republic of China
| | - Xiaofang Yang
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou, People's Republic of China
| | - Yuan Chen
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou, People's Republic of China
| | - Lei Zheng
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou, People's Republic of China
| | - ShihHuan Hsieh
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou, People's Republic of China
| | - Binghua Yan
- College of Resources and Environment, Hunan Agricultural University, Changsha, People's Republic of China
| |
Collapse
|
3
|
Zhang J, Chen Y, Qi J, Miao Q, Deng D, He H, Yan X, Luo L. A paper-based ratiometric fluorescence sensor based on carbon dots modified with Eu 3+ for the selective detection of tetracycline in seafood aquaculture water. Analyst 2024; 149:1571-1578. [PMID: 38285427 DOI: 10.1039/d3an02133e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
Paper-based ratiometric fluorescence sensors are normally prepared using two or more types of fluorescent materials on a paper chip for simple, low-cost and fast detection. However, the choice of multi-step and one-step modifications on the paper chip affects the analytical performance. Herein, a novel paper-based dual-emission ratiometric fluorescence sensor was designed for the selective detection of tetracycline (TC). Carbon dots (CDs) modified with Eu3+ were combined with a sealed paper-based microfluidic chip by two methods: one-step grafting of CDs-Eu3+ on paper and step-by-step grafting of CDs and Eu3+ on paper. The analytical performance was studied and optimized respectively. The red fluorescence of Eu3+ at 450 nm is enhanced and the blue fluorescence of CDs at 617 nm is quenched by energy transfer in the presence of TC. Under optimal conditions, TC is selectively determined in the linear range from 0.1 μM to 100 μM with a detection limit of 0.03 μM by the step-by-step grafting method. In addition, the sealed paper chip could effectively prevent pollution and volatilization from the reagent. This technique has been used to analyze TC in seafood aquaculture water with satisfactory results.
Collapse
Affiliation(s)
- Jialu Zhang
- School of Medicine, Shanghai University, Shanghai 200444, PR China
| | - Yuanyuan Chen
- College of Sciences, Shanghai University, Shanghai 200444, PR China.
| | - Ji Qi
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Provincial Key Laboratory of Coastal Environmental Processes, Research Centre for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.
| | - Qinglan Miao
- College of Sciences, Shanghai University, Shanghai 200444, PR China.
| | - Dongmei Deng
- College of Sciences, Shanghai University, Shanghai 200444, PR China.
| | - Haibo He
- College of Sciences, Shanghai University, Shanghai 200444, PR China.
| | - Xiaoxia Yan
- College of Sciences, Shanghai University, Shanghai 200444, PR China.
| | - Liqiang Luo
- College of Sciences, Shanghai University, Shanghai 200444, PR China.
| |
Collapse
|