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Hamid MAA, Elagamy SH, Gamal A, Mansour FR. Eco-friendly cobalt-doped carbon quantum dots for spectrofluorometric determination of pregabalin in pharmaceutical capsules. J Pharm Biomed Anal 2024; 248:116270. [PMID: 38870836 DOI: 10.1016/j.jpba.2024.116270] [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: 02/01/2024] [Revised: 05/22/2024] [Accepted: 05/29/2024] [Indexed: 06/15/2024]
Abstract
The misuse of pregabalin has become a significant issue over the last decade. Consequently, there is a growing demand for a sensitive and selective method for its determination. In this study, an eco-friendly cobalt-doped carbon quantum dots (CQDs) have been fabricated and applied as nanoprobes for the fluorometric determination of pregabalin. The CQDs were synthesized through mixed doping with non-metallic atoms such as nitrogen and sulfur, and a metal ion, cobaltous ion, via a microwave-assisted method in just 1.5 min. The synthesized Co-NS-CQDs exhibited advantageous characteristics, including rapid response times, compatibility with various pH levels, exceptional detection limits, high sensitivity, and excellent selectivity. The Co-NS-CQDs exhibited a high quantum yield (55 %) relative to NS-CQDs (38 %), with blue emissive light at 438 nm. The assessment of pregabalin was based on its enhancement effect on the native fluorescence intensity of CQDs. The proposed method had a good linearity over the range of 25-250 µg/mL, with a limit of detection of 4.17 µg/mL and a limit of quantitation of 12.63 µg/mL, respectively. The prepared NS-CQDs have been successfully applied for the pregabalin determination in pharmaceutical capsules, with excellent % recovery (98-102 %). The greenness of the developed method has been investigated using different greenness metrics, in comparison with the reported RP HPLC method. The greenness characteristics of the method originated from the synthesis of CQDs, utilizing sustainable, readily available, and cost-effective starting materials.
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Affiliation(s)
- Mohamed Ahmed Abdel Hamid
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Tanta University, Tanta 31111, Egypt; Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Al Salam University, Tanta, Egypt
| | - Samar H Elagamy
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Tanta University, Tanta 31111, Egypt
| | - Aya Gamal
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Tanta University, Tanta 31111, Egypt
| | - Fotouh R Mansour
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Tanta University, Tanta 31111, Egypt.
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2
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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.
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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
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Wang Q, Du H, Tang R, Wang X, Xie L, Liu J, Sun K, Li Z, Deng G. Boron difluoride modified zinc metal-organic framework-based "off-on" fluorescence sensor for tetracycline and Al 3+ detection. Mikrochim Acta 2024; 191:144. [PMID: 38372819 DOI: 10.1007/s00604-024-06211-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 01/10/2024] [Indexed: 02/20/2024]
Abstract
A novel fluorescence "off-on" probe was developed using a boron difluoride-modified zinc metal-organic framework (Zn-MOF3) for sensitive determination of tetracycline (TC) and Al3+. The Zn-MOF3 has excellent optical property and good applicability in aqueous phase. The fluorescence recorded at 436 nm was quenched at the excitation wavelength of 336 nm. Signal-off detection of tetracycline via fluorescence quenching of Zn-MOF3 is based on the inner filter effect. Fluorescence on-off-on detection of Al3+ occurs via the specific binding between tetracycline and Al3+. The limits of detection for TC and Al3+ were 28.4 nM and 106.7 nM, respectively. This probe exhibited high selectivity which was used for the determination of TC and Al3+ with satisfied recoveries (89.8 to 105.6% for TC, 90.0 to 110.4% for Al3+) and good precision (< 5%) in milk. The developed sensor represents the first "off-on" system for fluorescence detection of TC and Al3+ based on Zn-MOF3 with a better aspect of the innovation.
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Affiliation(s)
- Qihui Wang
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, China.
| | - Haochen Du
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, China
| | - Rui Tang
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, China
| | - Xiaohui Wang
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, China
| | - Lei Xie
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, China
| | - Jun Liu
- Medical Imaging Key Laboratory of Sichuan Province, North Sichuan Medical College, Nanchong, 637000, Sichuan, China
| | - Kang Sun
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, China
| | - Zhonghui Li
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, China
| | - Guowei Deng
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, 611130, China.
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Magdy G, Ebrahim S, Belal F, El-Domany RA, Abdel-Megied AM. Sulfur and nitrogen co-doped carbon quantum dots as fluorescent probes for the determination of some pharmaceutically-important nitro compounds. Sci Rep 2023; 13:5502. [PMID: 37015951 PMCID: PMC10073125 DOI: 10.1038/s41598-023-32494-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 03/28/2023] [Indexed: 04/06/2023] Open
Abstract
In this study, highly fluorescent sulfur and nitrogen co-doped carbon quantum dots (SN-CQDs) were synthesized by a simple one-pot hydrothermal method using thiosemicarbazide and citric acid as starting materials. Various spectroscopic and microscopic techniques were applied to characterize the prepared SN-CQDs. The synthesized SN-CQDs' maximum fluorescence emission was obtained at 430 nm after excitation at 360 nm. Rifampicin (RFP), tinidazole (TNZ), ornidazole (ONZ), and metronidazole (MNZ) all quantitatively and selectively quenched the SN-CQDs' native fluorescence, which was the base-for their-spectrofluorimetric estimation without the need for any tedious pre-treatment steps or high-cost instrumentation. SN-CQDs demonstrated a "turn-off" fluorescence response to RFP, TNZ, ONZ, and MNZ over the ranges of 1.0-30.0, 10.0-200.0, 6.0-200.0, and 5.0-100.0 μM with detection limits of 0.31, 1.76, 0.57, and 0.75 μM and quantitation limits of 0.93, 5.32, 1.74, and 2.28 μM respectively. The suggested method was successfully used to determine the investigated drugs in their commercial dosage forms. The method was further extended to their determination in spiked human plasma samples, with satisfactory mean % recoveries (99.44-100.29) and low % RSD values (< 4.52). The mechanism of fluorescence quenching was studied and discussed. The suggested method was validated in accordance with ICH recommendations.
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Affiliation(s)
- Galal Magdy
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Kafrelsheikh University, P.O. Box 33511, Kafrelsheikh, Egypt.
| | - Shaimaa Ebrahim
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Kafrelsheikh University, P.O. Box 33511, Kafrelsheikh, Egypt
| | - Fathalla Belal
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Mansoura University, P.O. Box 35516, Mansoura, Egypt
| | - Ramadan A El-Domany
- Microbiology and Immunology Department, Faculty of Pharmacy, Kafrelsheikh University, P.O. Box 33511, Kafrelsheikh, Egypt
| | - Ahmed M Abdel-Megied
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Kafrelsheikh University, P.O. Box 33511, Kafrelsheikh, Egypt
- Department of Pharmaceutical Sciences, School of Pharmacy, Notre Dame of Maryland University, Baltimore, MD, 21210, USA
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Jiang Y, Fang X, Zhang Z, Guo X, Huo J, Wang Q, Liu Y, Wang X, Ding B. Composite Eu-MOF@CQDs “off & on” ratiometric luminescent probe for highly sensitive chiral detection of L-lysine and 2-methoxybenzaldehyde. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2023.108426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
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6
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Doxorubicin-loaded polymeric micelles decorated with nitrogen-doped carbon dots for targeted breast cancer therapy. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2022.104055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Magdy G, Said N, El-Domany RA, Belal F. Nitrogen and sulfur-doped carbon quantum dots as fluorescent nanoprobes for spectrofluorimetric determination of olanzapine and diazepam in biological fluids and dosage forms: application to content uniformity testing. BMC Chem 2022; 16:98. [PMID: 36380347 PMCID: PMC9667599 DOI: 10.1186/s13065-022-00894-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Accepted: 11/02/2022] [Indexed: 11/16/2022] Open
Abstract
A validated, sensitive, and simple spectrofluorimetric method was developed for the analysis of two important CNS-acting drugs, olanzapine and diazepam, in their commercial tablets without the need for any pretreatment steps. The developed method relied on the quantitative quenching effect of each of olanzapine and diazepam on the native fluorescence of nitrogen and sulfur-doped carbon quantum dots (NS@CQDs). NS@CQDs were prepared from thiosemicarbazide and citric acid by a facile one-pot hydrothermal technique. The synthesized NS@CQDs were characterized by different spectroscopic and microscopic techniques. NS@CQDs produced a maximum emission peak at 430 nm using 360 nm as an excitation wavelength. Calibration curves showed a good linear regression over the range of 5.0–200.0 and 1.0–100.0 μM with detection limits of 0.68 and 0.29 μM for olanzapine and diazepam, respectively. The adopted method was used for the determination of the investigated drugs in their tablets with high % recoveries (98.84–101.70%) and low % RSD values (< 2%). As diazepam is one of the most commonly abused benzodiazepines, the developed method was successfully applied for its determination in spiked human plasma with high % recoveries and low % RSD values, providing further insights for monitoring its potential abuse. The quenching mechanism was also studied and confirmed to be through dynamic and static quenching for olanzapine and diazepam, respectively. Due to the high selectivity and sensitivity, content uniformity testing of low-dose tablets was successfully performed by applying the United States Pharmacopoeia guidelines. The method's validation was performed in compliance with ICHQ2 (R1) recommendations.
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8
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Influence of SERS effect on surface-active popcorns as nanotheranostics against H. pylori-induced peptic ulcer. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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9
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Fluorescence determination of chloramphenicol in milk powder using carbon dot decorated silver metal-organic frameworks. Mikrochim Acta 2022; 189:272. [PMID: 35790600 DOI: 10.1007/s00604-022-05377-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 06/17/2022] [Indexed: 10/17/2022]
Abstract
Carbon dot decorated silver metal-organic frameworks (CD-MOFs) were successfully synthesized at room temperature by adding CDs during the formation of Ag-MOFs. The CD-MOFs have excellent optical property, stability, and good fluorescence intensity in water compared with other solvents. The fluorescence intensity of CD-MOFs was relatively stable in the range of pH 5-9. It was used to construct a sensitive and reliable fluorescent sensor for the determination of chloramphenicol (CAP). When the CAP was introduced into the CD-MOFs, the fluorescence at 427 nm was quenched at the excitation wavelength of 332 nm. Wide linear relationships were established for CAP with a limit of detection of 44 nM. The fluorescent sensor has been applied to determine CAP in milk powder sample with satisfied recoveries (104 to 109%) and good precision (< 4%). The photoinduced electron-transfer is the most important mechanism contributing to the fluorescence quenching. The synthesized CD-MOFs provide a new orientation for fluorescence determination of chloramphenicol in real samples.
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10
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Somaraj G, Mathew S, Abraham T, Ambady KG, Mohan C, Mathew B. Nitrogen and Sulfur Co‐Doped Carbon Quantum Dots for Sensing Applications: A Review. ChemistrySelect 2022. [DOI: 10.1002/slct.202200473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Gayathri Somaraj
- School of chemical Sciences Mahatma Gandhi University Kottayam India
| | - Sneha Mathew
- School of chemical Sciences Mahatma Gandhi University Kottayam India
| | - Thomas Abraham
- Department of Chemistry Catholicate College Pathanamthitta Kerala India
| | - K. G. Ambady
- Department of Special Education National Institute for the Empowerment of Persons with Intellectual Disabilities Telangana India
| | - Chitra Mohan
- School of chemical Sciences Mahatma Gandhi University Kottayam India
| | - Beena Mathew
- School of chemical Sciences Mahatma Gandhi University Kottayam India
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Kaur N, Tiwari P, Mate N, Sharma V, Mobin SM. Photoactivatable carbon dots as a label-free fluorescent probe for picric acid detection and light-induced bacterial inactivation. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2022; 229:112412. [PMID: 35227941 DOI: 10.1016/j.jphotobiol.2022.112412] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 01/18/2022] [Accepted: 02/16/2022] [Indexed: 06/14/2023]
Abstract
The zero-dimensional carbon nanostructure known as carbon dots showed attractive attributes such as multicolour emission, very high quantum yield, up-conversion, very good aqueous solubility, eco-friendliness, and excellent biocompatibility. These outstanding features of the carbon dots have raised significant interest among the research community worldwide. In the current work, water-soluble nitrogen, silver, and gold co-doped bimetallic carbon dots (BCDs) were prepared using the one-pot hydrothermal method with citric acid as a sole carbon source. As prepared BCDs showed size in the range of 4-8 nm and excitation-independent emission behaviour with maximum emission observed at 427 nm. Additionally, these BCDs showed a very high quantum yield value of 50% and fluorescence lifetime value of 10.1 ns respectively. Interestingly, as prepared BCDs selectively sense picric acid (PA) by exhibiting "selective fluorescence turn-off" behaviour in the presence of PA with a limit of detection value (LOD) of 46 nM. Further, as prepared BCDs were explored for photodynamic therapy to inactivate bacterial growth in the presence of light (400-700 nm) by generating singlet oxygen. Thus as prepared BCDs offer lots of potentials to use a nanoprobe to detect picric acid in an aqueous medium and to design next-generation antibacterial materials.
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Affiliation(s)
- Navpreet Kaur
- Department of Biosciences and Bio-Medical Engineering, Indian Institute of Technology, Simrol, Khandwa Road, Indore 453552, India
| | - Pranav Tiwari
- Department of Chemistry, Indian Institute of Technology, Simrol, Khandwa Road, Indore 453552, India
| | - Nirmiti Mate
- Department of Chemistry, Indian Institute of Technology, Simrol, Khandwa Road, Indore 453552, India
| | - Vinay Sharma
- Department of Biosciences and Bioengineering, Indian Institute of Technology, Jammu 181221, Jammu & Kashmir, India
| | - Shaikh M Mobin
- Department of Biosciences and Bio-Medical Engineering, Indian Institute of Technology, Simrol, Khandwa Road, Indore 453552, India; Department of Chemistry, Indian Institute of Technology, Simrol, Khandwa Road, Indore 453552, India.
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One-Step Preparation of S, N Co-Doped Carbon Quantum Dots for the Highly Sensitive and Simple Detection of Methotrexate. Molecules 2022; 27:molecules27072118. [PMID: 35408528 PMCID: PMC9000489 DOI: 10.3390/molecules27072118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/10/2022] [Accepted: 03/17/2022] [Indexed: 02/01/2023] Open
Abstract
(1) Background: Carbon quantum dots (CQDs) are a new class of carbon nanomaterials with favorable features, such as tunable luminescence, unique optical properties, water solubility, and lack of cytotoxicity; they are readily applied in biomedicine. (2) Methods: S, N co-doped CQDs were prepared to develop a highly selective and sensitive fluorescence technique for the detection of methotrexate (MTX). For this purpose, citric acid and thiourea were used as C, N, and S sources in a single-step hydrothermal process to prepare the S, N co-doped CQDs, which displayed remarkable fluorescence properties. (3) Results: Two optimal emissions were observed at the excitation/emission wavelengths of 320/425 nm, respectively. The two emissions were significantly quenched in the presence of MTX. Under optimal conditions, MTX was detected in the linear concentration range of 1–300 μmol/L, with the detection limit of 0.33 μmol/L. The sensing mechanism was due to the fact that the effect of the inner filter on MTX and S, N-CQDs causes fluorescence quenching. The contents of MTX in real medicine samples were evaluated with acceptable recoveries of 98–101%. (4) Conclusions: This approach has great potential for detecting MTX in pharmaceutical analysis.
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Liu X, Han Y, Shu Y, Wang J, Qiu H. Fabrication and application of 2,4,6-trinitrophenol sensors based on fluorescent functional materials. JOURNAL OF HAZARDOUS MATERIALS 2022; 425:127987. [PMID: 34896707 DOI: 10.1016/j.jhazmat.2021.127987] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/30/2021] [Accepted: 12/02/2021] [Indexed: 05/06/2023]
Abstract
2,4,6-Trinitrophenol (TNP) has been widely used for a long time. The adverse effects of TNP on ecological environment and human health have promoted researchers to develop various methods for detecting TNP. Among multifarious technologies utilized for the TNP detection, fluorescence strategy based on different functional materials has become an effective and efficient method attributed to its merits such as preferable sensitivity and selectivity, rapid response speed, simple operation, and lower cost, which is also the focus of review. This review summarizes the development status of fluorescence sensors for TNP in a detailed and systematic way, especially focusing on the research progress since 2015. The sensing properties of fluorescent materials for TNP are the core of this review, including nanomaterials, organic small molecules, emerging supramolecular systems, aggregation induced emission materials and others. Moreover, the development direction and prospect of fluorescence sensing method in the field of TNP detection are introduced and discussed at the end of review.
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Affiliation(s)
- Xingchen Liu
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China; CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Yangxia Han
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Yang Shu
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China.
| | - Jianhua Wang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
| | - Hongdeng Qiu
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China; College of Chemistry, Zhengzhou University, Zhengzhou 450001, China; College of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, China.
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14
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Rapid microwave synthesis of N,S-doped carbon quantum dots as a novel turn off-on sensor for label-free determination of copper and etidronate disodium. Anal Chim Acta 2022; 1197:339491. [DOI: 10.1016/j.aca.2022.339491] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 01/10/2022] [Accepted: 01/11/2022] [Indexed: 01/07/2023]
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15
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Thioacetamide-derived nitrogen and sulfur co-doped carbon quantum dots for “green” quantum dot solar cells. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2021.09.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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16
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Liu H, Li H, Du K, Xu H. Photocatalytic activity study of ZnO modified with nitrogen–sulfur co-doped carbon quantum dots under visible light. NEW J CHEM 2022. [DOI: 10.1039/d2nj02562k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enhanced degradation rate of RhB under visible light by N,S-CQDs-modified ZnO.
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Affiliation(s)
- Huadong Liu
- School of Mechanical and Power Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Hewei Li
- School of Mechanical and Power Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Kezhen Du
- School of Mechanical and Power Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Haoxuan Xu
- School of Mechanical and Power Engineering, Zhengzhou University, Zhengzhou 450001, China
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Ahmed HM, Ghali M, Zahra W, Ayad MM. Preparation of carbon quantum dots/polyaniline nanocomposite: Towards highly sensitive detection of picric acid. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 260:119967. [PMID: 34082352 DOI: 10.1016/j.saa.2021.119967] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 05/13/2021] [Accepted: 05/16/2021] [Indexed: 06/12/2023]
Abstract
Carbon quantum dots/polyaniline (CQDs/PANI) nanocomposite was successfully prepared by in-situ polymerization of aniline. CQDs were synthesized hydrothermally from gelatin with a diameter size of 4.2 nm and a 17% quantum yield. FTIR, UV-vis absorption, fluorescence spectrophotometer, XRD, TEM, XPS and lifetime decay were used to characterize the obtained nanocomposite. The formation of PANI revealed a high quenching effect on CQDs where the TEM images showed that the formed CQDs were greatly embedded in PANI matrix. In this study, CQDs/PANI nanocomposite was used for the detection of picric acid (PA) in the range 0.37-1.42 μM with a low detection limit (LOD) of 0.056 μM. The prepared sensor showed good enhancement and sensitivity towards PA in comparison to pristine CQDs and other nanostructured materials. The mechanism of PA detection has been studied where it was observed that PA is electrostatically interacted to the nanocomposite through - OH group of PA and the protonated PANI salt formed in CQDs/PANI nanocomposite by fluorescence resonance energy transfer applications. The proposed CQDs/PANI sensor was then utilized in real water samples and successfully determined the different amounts of PA spiked into tap water.
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Affiliation(s)
- Heba M Ahmed
- Basic and Applied Sciences Institute, Egypt-Japan University of Science and Technology, New Borg El-Arab 21934, Alexandria, Egypt; Polymeric Materials Research Department, Advanced Technology and New Materials Research Institute, City of Scientific Research and Technological Applications, New Borg El-Arab 21934, Alexandria, Egypt
| | - Mohsen Ghali
- Basic and Applied Sciences Institute, Egypt-Japan University of Science and Technology, New Borg El-Arab 21934, Alexandria, Egypt; Department of Physics, Faculty of Science, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
| | - Waheed Zahra
- Basic and Applied Sciences Institute, Egypt-Japan University of Science and Technology, New Borg El-Arab 21934, Alexandria, Egypt; Department of Physics and Engineering Mathematics, Faculty of Engineering, Tanta University, Tanta 31527, Egypt
| | - Mohamad M Ayad
- Basic and Applied Sciences Institute, Egypt-Japan University of Science and Technology, New Borg El-Arab 21934, Alexandria, Egypt; Chemistry Department, Faculty of Science, Tanta University, Tanta 31527, Egypt.
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Biocompatible sulfur nitrogen co-doped carbon quantum dots for highly sensitive and selective detection of dopamine. Colloids Surf B Biointerfaces 2021; 205:111874. [PMID: 34044332 DOI: 10.1016/j.colsurfb.2021.111874] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 04/12/2021] [Accepted: 05/11/2021] [Indexed: 12/27/2022]
Abstract
In this work, sulfur and nitrogen co-doped carbon quantum dots (S,N-CQDs) were prepared via one-pot hydrothermal treatment of EDTA disodium and sodium sulfide. The prepared S,N-CQDs were characterized by TEM, XRD, FT-IR, XPS, UV-vis absorption and fluorescence spectra to characterize their morphology, crystal structure, functional groups, elemental composition, and optical properties. It was found that S and N elements were successfully doped into the CQDs and the morphology was approximately spherical with an average particle size of 2.16 nm, in which the excitation/emission wavelengths were 350 and 420 nm, respectively. Compared with single element doped CQDs, double element doped CQDs have a higher quantum yield and excellent optical stability. Cell experiments showed that S,N-CQDs had good biocompatibility because they had no obvious toxicity on both normal cell lines and cancer cell lines. More importantly, based on the synergy of static quenching and dynamic quenching, the S,N-CQDs were used as effective fluorescent probes for sensitive detection of DA, with high anti-interference and low limit of detection. Based on the good biocompatibility of S,N-CQDs, the detection of dopamine in actual serum samples were carried out and the results showed an excellent recovery rate. Therefore, this work provides a dopamine sensor with a practical application prospect.
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19
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Rossini EL, Milani MI, Lima LS, Pezza HR. Paper microfluidic device using carbon dots to detect glucose and lactate in saliva samples. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 248:119285. [PMID: 33310613 DOI: 10.1016/j.saa.2020.119285] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/23/2020] [Accepted: 11/23/2020] [Indexed: 06/12/2023]
Abstract
Bioanalyses are commonly performed with blood or serum samples. However, these analyses often require invasive and painful blood collection using a needle or finger pricking. Saliva is an alternative and very attractive biological medium for performing clinical analyses, since it contains many types of clinically relevant biomarkers and compounds. Its collection is straightforward and can be achieved in a non-invasive and stress-free way. However, the analytes are frequently present at low concentrations, while the viscosity of whole saliva hinders its analysis using paper devices, especially those with multiple layers (3D-μPADs). This work explores the use of a simple, fast, and low-cost saliva sample pretreatment using a cotton-paper-syringe filtration system, allowing the analysis of saliva samples using multilayer paper devices. The proposed methodology employs the oxidation of glucose and lactate, catalyzed by specific oxidase enzymes, producing hydrogen peroxide. The detection is based on the fluorescence quenching of carbon dots in the presence of hydrogen peroxidase. The concentrations of the analytes showed good linear correlations with the fluorescence quenching, with LODs of 2.60 × 10-6 and 8.14 × 10-7 mol L-1 for glucose and lactate, respectively. The proposed method presented satisfactory intra-day and inter-day repeatabilities, with %RSD values in the range 3.82-6.61%. The enzymatic systems proved to be specific for the analytes and the matrix had no significant influence on the glucose and lactate determinations. The proposed methodology was successfully applied to saliva and serum samples and was validated using certified material.
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Affiliation(s)
- Eduardo Luiz Rossini
- Instituto de Química, Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Rua Prof. Francisco Degni 55, C.P. 355, 14800-900 Araraquara, SP, Brazil.
| | - Maria Izabel Milani
- Instituto de Química, Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Rua Prof. Francisco Degni 55, C.P. 355, 14800-900 Araraquara, SP, Brazil
| | - Liliane Spazzapam Lima
- Instituto de Química, Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Rua Prof. Francisco Degni 55, C.P. 355, 14800-900 Araraquara, SP, Brazil
| | - Helena Redigolo Pezza
- Instituto de Química, Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Rua Prof. Francisco Degni 55, C.P. 355, 14800-900 Araraquara, SP, Brazil
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20
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Liu Y, Liu B, Huang P, Wu FY, Ma L. Concentration-dependent photoluminescence carbon dots for visual recognition and detection of three tetracyclines. Anal Bioanal Chem 2021; 413:2565-2575. [PMID: 33651120 DOI: 10.1007/s00216-021-03221-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 02/03/2021] [Indexed: 10/22/2022]
Abstract
Concentration-dependent photoluminescence carbon dots (CDs) have been successfully synthesized through the one-step hydrothermal treatment of o-phthalic acid and ethylenediamine. The CDs possessed higher fluorescence quantum yield, up to 39.22%, exhibiting distinguished optical property, water solubility, and stability. The CDs that emit strong blue-green fluorescence can visually identify and determine tetracycline (TC), oxytetracycline (OTC), and chlortetracycline (CTC). TC quenched the fluorescence of CDs at 500 nm owing to the inner filter effect; OTC behaved similarly, but the emission wavelength of CDs was red-shifted to 515 nm. Inversely, once CTC was introduced to CDs solution, the fluorescence increased and the emission peak was blue-shifted to 450 nm. Bandgap transition and electrostatic interaction were proposed to be the mechanisms for the detection of OTC and CTC by CDs. Wide linear relationships were established for TC, OTC, and CTC with the limits of detection to be 50 nM, 36 nM, and 373 nM, respectively. Furthermore, the nanoscale probe constructed by this system has been applied to detect tetracyclines (TCs) in complex samples with satisfying recoveries (93.2-114%) and was designed as a portable test strip sensor for visually on-site TCs of honey sample screening. Accordingly, the preparation process of the nano fluorescent probe is simple and environmentally friendly, and the probe has a specific recognition ability for tetracyclines. The synthesized CDs in this work provide a new orientation for fast, effective, and visual real-time detection of tetracycline in actual samples.
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Affiliation(s)
- Ying Liu
- College of Chemistry, Nanchang University, Nanchang, 330031, Jiangxi, China
| | - Bowen Liu
- College of Chemistry, Nanchang University, Nanchang, 330031, Jiangxi, China
| | - Pengcheng Huang
- College of Chemistry, Nanchang University, Nanchang, 330031, Jiangxi, China. .,Jiangxi Province Key Laboratory of Modern Analytical Science, Nanchang University, Nanchang, 330031, Jiangxi, China.
| | - Fang-Ying Wu
- College of Chemistry, Nanchang University, Nanchang, 330031, Jiangxi, China. .,Jiangxi Province Key Laboratory of Modern Analytical Science, Nanchang University, Nanchang, 330031, Jiangxi, China.
| | - Lihua Ma
- College of Science and Engineering, University of Houston at Clear Lake, 2700 Bay Area Blvd, Houston, TX, 77058, USA.
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21
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Belal F, Mabrouk M, Hammad S, Barseem A, Ahmed H. A Novel Eplerenone Ecofriendly Fluorescent Nanosensor Based on Nitrogen and Sulfur-Carbon Quantum Dots. J Fluoresc 2021; 31:85-90. [PMID: 33074428 DOI: 10.1007/s10895-020-02638-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 10/14/2020] [Indexed: 12/15/2022]
Abstract
In this work, a novel ecofriendly optical nanosensor for detection of Eplerenone (EPL) in biological samples was reported. Highly luminescent water-soluble nitrogen and sulfur doped carbon quantum dots (N, S-CQDs) have been prepared successfully. The synthesis was based on the reaction of thiosemicarbazide (TS) as source of N and S and citric acid (CA) as source of carbon in one-step aqueous base reflux treatment. The produced N, S-CQDs have a small particle size in the range of 4.7 nm with a high quantum yield (58.5%) and high emission intensity at 446 nm under excitation wavelength of 370 nm. The unique properties of N, S-CQDs make them useful tool as a nano fluorescent probe for sensitive determination of EPL. EPL has been found to decrease the fluorescence of S, N-CDs significantly through static quenching according to the Stern - Volmer plot. The decreased intensity of S, N-CDs fluorescence was proportional to EPL in the 0.2-3.0 μM range. The limit of detection and quantitation were 0.05 and 0.15 μM, respectively. The assay of EPL by this approach was successfully done in drug formulations and in spiked human serum samples.
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Affiliation(s)
- Fathalla Belal
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Mokhtar Mabrouk
- Department of pharmaceutical analytical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Sherin Hammad
- Department of pharmaceutical analytical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Aya Barseem
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Shibin el Kom, Egypt
| | - Hytham Ahmed
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Shibin el Kom, Egypt.
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22
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Wang M, Kang X, Deng L, Wang M, Xia Z, Gao D. Deep eutectic solvent assisted synthesis of carbon dots using Sophora flavescens Aiton modified with polyethyleneimine: Application in myricetin sensing and cell imaging. Food Chem 2020; 345:128817. [PMID: 33307432 DOI: 10.1016/j.foodchem.2020.128817] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 12/01/2020] [Accepted: 12/02/2020] [Indexed: 02/06/2023]
Abstract
Here, an efficient method for synthesizing carbon dots (CDs) using a deep eutectic solvent (DES) was developed. To investigate the influence of different DESs on the quantum yield of CDs, different hydrogen-bonding acceptors (HBAs) and hydrogen-bonding donors (HBDs) were used to synthesize the DES and prepare CDs. Using Sophora flavescens Aiton as precursor, CDs were prepared using choline chloride (ChCl)/urea based DES as reaction media and doping agent in the presence of water. The CDs showed strong blue fluorescence and were further modified with polyethyleneimine (CDs@PEI). The fluorescence intensity of CDs@PEI was selectively quenched by myricetin with a limit of detection (LOD) of 10 nM. Furthermore, CDs@PEI was used to analyze myricetin in the extracts that were fluorescent by DES with satisfactory performance of Abelmoschus manihot (Linn.) Medicus flowers, vine teas and blueberries. Finally, the bio-imaging application of CDs@PEI was tested and the results confirmed its potential application in bio-imaging.
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Affiliation(s)
- Min Wang
- School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Xun Kang
- School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Linlin Deng
- School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Min Wang
- School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Zhining Xia
- School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China.
| | - Die Gao
- School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China.
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23
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Guo Y, Li T, Xie L, Tong X, Tang C, Shi S. Red pitaya peels-based carbon dots for real-time fluorometric and colorimetric assay of Au 3+, cellular imaging, and antioxidant activity. Anal Bioanal Chem 2020; 413:935-943. [PMID: 33210176 DOI: 10.1007/s00216-020-03049-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 10/18/2020] [Accepted: 11/04/2020] [Indexed: 12/18/2022]
Abstract
The synthesis of fascinating multifunctional carbon dots (CDs) attracted immense attention. Here, a facile solvothermal treatment of red pitaya peels in acetic acid produced CDs (designated as ACDs, excitation/emission wavelengths at 357/432 nm). ACDs with high sp2-hybridized carbon and carboxylic group contents can rapidly and selectively reduce Au3+ to Au0, and stabilize produced Au nanoparticles (AuNPs). The synergetic effect of electron transfer from ACDs to Au3+ and inner filter effect (IFE) from ACDs to AuNPs quenches the fluorescence within 30 s. Simultaneously, the resulting AuNPs have a purple color with a maximum absorption at 545 nm for visual detection. Therefore, for the first time, we reported a fluorometric and colorimetric dual-mode sensing system for real-time, highly sensitive and selective detection of Au3+. The fluorescence quenching ratio and absorbance change linearly with the increase of Au3+ concentration in the range of 0.3-8.0 μM and 3.3-60.0 μM with limits of detection (LODs) at 0.072 μM and 2.2 μM, respectively. The assay was applied for Au3+ determination in spiked real water samples with recoveries from 95.5 to 105.0%, and relative standard deviation (RSD) of less than 6.5%. Furthermore, ACDs with good photostability, low cytotoxicity, and excellent biocompatibility were successfully applied for intracellular Au3+ sensing and imaging. In addition, ACDs exhibited an extraordinarily high antioxidant activity, with an IC50 value for DPPH radical scavenging (0.70 μg mL-1) much lower than that of ascorbic acid (4.34 μg mL-1). The proposed strategy demonstrates the outstanding properties of ACDs in chemical and biomedical analysis. Graphical abstract.
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Affiliation(s)
- Ying Guo
- Department of Clinical Pharmacology, Xiangya Hospital; Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, 410078, Hunan, China.
| | - Te Li
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan, China. .,Yunnan Provincial Energy Research Institute Co., Ltd, Kunming, 650000, Yunnan, China.
| | - Lianwu Xie
- College of Sciences, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China
| | - Xia Tong
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan, China
| | - Cui Tang
- Department of Clinical Pharmacology, Xiangya Hospital; Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, 410078, Hunan, China
| | - Shuyun Shi
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan, China.
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24
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Wu L, Long R, Li T, Tang C, Tong X, Guo Y, Shi S, Xiang H, Tong C. One-pot fabrication of dual-emission and single-emission biomass carbon dots for Cu 2+ and tetracycline sensing and multicolor cellular imaging. Anal Bioanal Chem 2020; 412:7481-7489. [PMID: 32833074 DOI: 10.1007/s00216-020-02882-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 08/06/2020] [Accepted: 08/13/2020] [Indexed: 01/09/2023]
Abstract
Dual-emission and single-emission carbon dots (DCDs and SCDs) have been simultaneously synthesized by one-pot solvothermal treatment of leek. Different graphitization and surface functionalization were responsible for their distinction in fluorescence characteristics. DCDs with an average size of 5.6 nm exhibited two emissions at 489 and 676 nm under 420-nm excitation. Complexation between DCDs' surface porphyrins and Cu2+ led to quenching of the 676-nm emission, which resulted in the ratiometric determination of Cu2+ with a limit of detection (LOD) of 0.085 μM. SCDs, containing additional sulfur element (0.50%) with an average size of 7.7 nm, presented a single emission at 440 nm under 365-nm excitation. The static quenching and inner filter effects between SCDs and tetracyclines (TCs) made SCDs a fluorescence nanoprobe for TCs' determination with LODs of 0.26-0.48 μM. Applications of DCDs and SCDs for respective determination of Cu2+ and TCs in milk and pig liver samples were successfully demonstrated. Moreover, good photostability, low toxicity, and outstanding biocompatibility made DCDs and SCDs suitable for multicolor cellular imaging. Results indicate that natural products are excellent raw materials to controllably synthesize CDs with prominent physicochemical and fluorescence properties.Graphical abstract.
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Affiliation(s)
- Lihui Wu
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan, China
| | - Ruiqing Long
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan, China
| | - Te Li
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan, China
| | - Cui Tang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China.,Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, 410078, Hunan, China
| | - Xia Tong
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan, China
| | - Ying Guo
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China. .,Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, 410078, Hunan, China.
| | - Shuyun Shi
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan, China.
| | - Haiyan Xiang
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, Guangdong, China.
| | - Chaoying Tong
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan, China
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25
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Wang X, Zhang X, Cao H, Huang Y. A facile and rapid approach to synthesize uric acid-capped Ti3C2 MXene quantum dots for the sensitive determination of 2,4,6-trinitrophenol both on surfaces and in solution. J Mater Chem B 2020; 8:10837-10844. [DOI: 10.1039/d0tb02078h] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The UA@Ti3C2 QDs with blue light emission were synthesized by a simple and green microwave-assisted method, and used as a sensitive and selective probe for the detection of TNP both on surfaces and in solution.
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Affiliation(s)
- Xin Wang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Xiaodan Zhang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Haiyan Cao
- Key Laboratory of Chongqing Inorganic Special Functional Materials
- College of Chemistry and Chemical Engineering
- Yangtze Normal University
- Chongqing 408100
- China
| | - Yuming Huang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
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