1
|
Li W, Liu F, He Y, Song G. A ratiometric fluorescent sensor based on S-doped BCNO quantum dots and Au nanoclusters combined with 3D-printing portable device for the detection of malachite green. Mikrochim Acta 2024; 191:394. [PMID: 38877187 DOI: 10.1007/s00604-024-06465-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Accepted: 05/25/2024] [Indexed: 06/16/2024]
Abstract
Sulfur-doped BCNO quantum dots (S-BCNO QDs) emitting green fluorescence were prepared by elemental doping method. The ratiometric fluorescence probe with dual emissions was simply established by mixed S-BCNO QDs with gold nanoclusters (GSH-Au NCs). Because the emission spectrum of Au NCs (donor) at 615 nm overlapped well with the ultraviolet absorption of malachite green (MG), fluorescence resonance energy transfer (FRET) can be achieved. When the concentration of MG increased, the fluorescence intensity (F495) of S-BCNO QDs decreased slowly, while the fluorescence intensity (F615) of Au NCs decreased sharply. The fluorescence intensity ratio of F615/F495 decreased with the increase of MG. By plotting the F615/F495 values against MG concentration, a sensitive and rapid detection of MG was possible with a wide detection range (0.1-50 µM) and a low detection limit of 10 nM. Due to the accompanying fluorescence color change from pink to blue-green, it can be used for visual detection. A three dimensional-printing device utilizing digital image colorimetry to capture color changes through the built-in camera, enables quantitative detection of MG with a good linearity between the values of red/green ratio and MG concentrations at the range 1-50 µM. This sensing platform had a range of advantages, including high cost-effectiveness, portability, ease of operation, and high sensitivity. Furthermore, the sensing platform was successfully applied to the detection of MG in real water sample and fish samples, thereby verifying the reliability and effectiveness of this sensing platform in water quality monitoring and food safety.
Collapse
Affiliation(s)
- Wenhao Li
- Ministry of Education, Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Province Key Laboratory for Precision Manufacturing of Small Molecular Active Pharmaceutical Ingredients, College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, China
| | - Fang Liu
- Ministry of Education, Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Province Key Laboratory for Precision Manufacturing of Small Molecular Active Pharmaceutical Ingredients, College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, China
| | - Yu He
- Ministry of Education, Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Province Key Laboratory for Precision Manufacturing of Small Molecular Active Pharmaceutical Ingredients, College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, China.
| | - Gongwu Song
- Ministry of Education, Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Province Key Laboratory for Precision Manufacturing of Small Molecular Active Pharmaceutical Ingredients, College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, China
| |
Collapse
|
2
|
Zhang J, Qi H, Yi T, Jing T, Zhao M, Li J, Ran M, Zhu X, Luo C. Development of a highly sensitive ultra-small ratiometric fluorescence nanosphere probe for Sunset Yellow detection. Talanta 2024; 277:126341. [PMID: 38823329 DOI: 10.1016/j.talanta.2024.126341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 05/14/2024] [Accepted: 05/29/2024] [Indexed: 06/03/2024]
Abstract
A highly sensitive ultra-small ratiometric fluorescence nanosphere probe was successfully manufactured to detect Sunset Yellow (SY). The probe, CMCS@N, S-CDs/Rh6G, was formed through the encapsulation of N, S-CDs and Rh6G within carboxymethyl chitosan (CMCS) through in situ cross-linking. Remarkably, our nanosphere probe had an average grain diameter of 6.80 nm and exhibited excellent dispersibility without the need for additional solvents. The probe exhibited a strong linear relationship with SY concentration in the range of 0.26-100 μM, with a low detection limit of 0.078 μM. Furthermore, SY demonstrated strong fluorescence quenching capability on our nanosphere probe, with the fluorescence quenching mechanism involving a combined effects of inner filter effect (IFE) and static quenching. Notably, our nanosphere probe retained the bacteriostatic properties of CMCS, with a substantial bacteriostasis rate of 77.58 %, introducing novel potential applications.
Collapse
Affiliation(s)
- Jiayu Zhang
- College of Chemistry and Chemical Engineering, Qiqihar University, No. 42, Wenhua Street, Qiqihar, 161006, China
| | - Haiyan Qi
- College of Chemistry and Chemical Engineering, Qiqihar University, No. 42, Wenhua Street, Qiqihar, 161006, China.
| | - Tonghui Yi
- Health Inspection Center of Qiqihar Medical University, Heilongjiang, Qiqihar, 161006, China.
| | - Tao Jing
- College of Chemistry and Chemical Engineering, Qiqihar University, No. 42, Wenhua Street, Qiqihar, 161006, China
| | - Ming Zhao
- College of Chemistry and Chemical Engineering, Qiqihar University, No. 42, Wenhua Street, Qiqihar, 161006, China; Technology Innovation Center of Industrial Hemp for State Market Regulation, Qiqihar University, No. 42, Wenhua Street, Qiqihar, 161006, China
| | - Jun Li
- College of Chemistry and Chemical Engineering, Qiqihar University, No. 42, Wenhua Street, Qiqihar, 161006, China; Technology Innovation Center of Industrial Hemp for State Market Regulation, Qiqihar University, No. 42, Wenhua Street, Qiqihar, 161006, China
| | - Maoxia Ran
- College of Chemistry and Chemical Engineering, Qiqihar University, No. 42, Wenhua Street, Qiqihar, 161006, China
| | - Xiaochen Zhu
- College of Chemistry and Chemical Engineering, Qiqihar University, No. 42, Wenhua Street, Qiqihar, 161006, China
| | - Chao Luo
- College of Chemistry and Chemical Engineering, Qiqihar University, No. 42, Wenhua Street, Qiqihar, 161006, China
| |
Collapse
|
3
|
Liu T, Li Y, Gu J, Zhang L, Qian F, Li B, Wang X. Achieving smartphone-based colorimetric assay for Hg 2+ with a bimetallic site strategy based on Hg 2+-triggered oxidase-like catalytic activity of NSC/Co 6Ni 3S 8 nanocomposite. Anal Chim Acta 2023; 1278:341734. [PMID: 37709431 DOI: 10.1016/j.aca.2023.341734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 08/16/2023] [Accepted: 08/16/2023] [Indexed: 09/16/2023]
Abstract
Modulation of the nanozyme's catalytic activity is crucial for its real applications in detecting target analytes. Herein, we fabricated the nanocomposite (NSC/Co6Ni3S8) of N, S co-doped carbon and Co6Ni3S8 by a facile sol-gel approach. Compared to NSC/Ni9S8, NSC/Co6Ni3S8 with bimetallic active sites displayed better enzyme-mimetic activity. This nanocomposite could catalyze O2 to form ·O2- and oxidize colorless 3, 3', 5, 5'-tetramethylbenzidine (TMB) into blue oxTMB. The other two free radicals (h+ and ·OH) played minor roles during the catalytic reaction. Hg2+ could integrate with S2- to form HgS and the surface charges of O2 were transferred to Hg2+ to promote O2 adsorption. DFT theoretical calculations highlight that the main reasons for the enhancing effect of Hg2+ on color development results from electron transfer and increased adsorption energy of O2 molecules onto the surface of NSC/Co6Ni3S8. By employing the oxidase-like activity of NSC/Co6Ni3S8 and Hg2+-triggered promoting effect, a colorimetric sensing platform was established for Hg2+ assay with a linear range of 10-200 μg/L and detection limit of 3 μg/L. Through integration with a smartphone-based APP "Thing Identify" software, a visual colorimetric assay for Hg2+ was constructed with a detection limit of 5 μg/L. Compared to the data detected by the mercury vapor meter, the relative recoveries of 92.4-108.1% evidenced the higher accuracy of this smartphone-based visual detection. Overall, the NSC/Co6Ni3S8-based colorimetric assay is convenient, rapid, and visual, and can be applied for routine monitoring of Hg2+ in real-world waters under outdoor conditions.
Collapse
Affiliation(s)
- Tingting Liu
- School of Environmental Science and Engineering, Jiangsu Key Laboratory of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Yuhao Li
- School of Environmental Science and Engineering, Jiangsu Key Laboratory of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - JingJing Gu
- School of Environmental Science and Engineering, Jiangsu Key Laboratory of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Lei Zhang
- School of Environmental Science and Engineering, Jiangsu Key Laboratory of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Feiyue Qian
- School of Environmental Science and Engineering, Jiangsu Key Laboratory of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - BinRong Li
- School of Environmental Science and Engineering, Jiangsu Key Laboratory of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Xuedong Wang
- School of Environmental Science and Engineering, Jiangsu Key Laboratory of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China.
| |
Collapse
|
4
|
Wang H, Ai M, Liu J. Detecting phosphate using lysine-sensitized terbium coordination polymer nanoparticles as ratiometric luminescence probes. Anal Bioanal Chem 2023; 415:2185-2191. [PMID: 36864308 DOI: 10.1007/s00216-023-04624-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/18/2023] [Accepted: 02/21/2023] [Indexed: 03/04/2023]
Abstract
Probes for detecting phosphate ions (Pi) are required for environmental monitoring and to protect human health. Here, novel ratiometric luminescent lanthanide coordination polymer nanoparticles (CPNs) were successfully prepared and used to selectively and sensitively detect Pi. The nanoparticles were prepared from adenosine monophosphate (AMP) and Tb3+, and lysine (Lys) was used as a sensitizer (through the antenna effect) to switch on Tb3+ luminescence at 488 and 544 nm while Lys luminescence at 375 nm was quenched because of energy transfer from Lys to Tb3+. The complex involved is here labeled AMP-Tb/Lys. Pi destroyed the AMP-Tb/Lys CPNs and therefore decreased the AMP-Tb/Lys luminescence intensity at 544 nm and increased the luminescence intensity at 375 nm at an excitation wavelength of 290 nm, meaning ratiometric luminescence detection was possible. The ratio between the luminescence intensities at 544 and 375 nm (I544/I375) was strongly associated with the Pi concentration between 0.1 and 6.0 μM, and the detection limit was 0.08 μM. The dual-emission reverse-change ratio luminescence sensing method can exclude environmental effects, so the proposed assay was found to be very selective. The method was successfully used to detect Pi in real water samples, and acceptable recoveries were found, suggesting that the method could be used in practice to detect Pi in water samples.
Collapse
Affiliation(s)
- Huaxin Wang
- College of Chemistry and Materials Science, The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, Anhui Normal University, Wuhu, 241000, China
| | - Mimi Ai
- College of Chemistry and Materials Science, The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, Anhui Normal University, Wuhu, 241000, China
| | - Jinshui Liu
- College of Chemistry and Materials Science, The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, Anhui Normal University, Wuhu, 241000, China.
| |
Collapse
|
5
|
Alshatteri AH, Omer KM. Dual-Nanocluster of Copper and Silver as a Ratiometric-Based Smartphone-Assisted Visual Detection of Biothiols. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
6
|
Wang C, Sun Q, Yang M, Liu E, Xue W, Fan J. Preparation of highly luminescent nitrogen-doped carbon quantum dots and their detection of tetracycline antibiotics. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|