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Hu X, Sun H, Jiang Y, Xiao X, Liang Y, Lei M, Yang Y, Zhang J, Qin P, Luo L, Wu Z. π-π conjugated PDI supramolecular regulating the photoluminescence of imine-COFs for sensitive smartphone visual detection of levofloxacin. Food Chem 2024; 460:140688. [PMID: 39089027 DOI: 10.1016/j.foodchem.2024.140688] [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: 05/08/2024] [Revised: 07/25/2024] [Accepted: 07/26/2024] [Indexed: 08/03/2024]
Abstract
As the contamination and enrichment in food chain of levofloxacin (LV) antibiotics have caused a significant threat to life safety, the instant detection of LV has become an urgent need. Here, a PDI-functionalized imine-based covalent organic framework (PDI-COF300) was prepared by the electrostatic self-assembly method as fluorescent probe for smartphone visual detection of LV, which exhibited excellent fluorescence quantum yield (82.68%), greater stability, high sensitivity with detection limit of 0.303 μM. Based on the results of molecular docking and Stern-Volmer equation, the LV detection by PDI-COF300 was mainly a static quenching process through π-π stacked hydrophobic interactions and fluorescence resonance energy transfer. Besides, PDI-COF300 was applied to LV detection in environmental medium and milk samples with recoveries from 85.56% to 108.34% and relative standard deviations <2.70%. This work also provided a new general strategy for using PDI-COF in smartphone devices and fluorescent papers for LV fluorescence detection and microanalysis.
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Affiliation(s)
- Xiaolong Hu
- College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, PR China; Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha 410128, PR China; Yuelushan Laboratory, Hongqi Road, Changsha, Hunan, 410128, China
| | - Haibo Sun
- College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, PR China; Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha 410128, PR China; Yuelushan Laboratory, Hongqi Road, Changsha, Hunan, 410128, China
| | - Yi Jiang
- College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, PR China; Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha 410128, PR China; Yuelushan Laboratory, Hongqi Road, Changsha, Hunan, 410128, China
| | - Xiang Xiao
- College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, PR China; Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha 410128, PR China; Yuelushan Laboratory, Hongqi Road, Changsha, Hunan, 410128, China
| | - Yunshan Liang
- College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, PR China; Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha 410128, PR China; Yuelushan Laboratory, Hongqi Road, Changsha, Hunan, 410128, China
| | - Ming Lei
- College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, PR China; Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha 410128, PR China; Yuelushan Laboratory, Hongqi Road, Changsha, Hunan, 410128, China
| | - Yuan Yang
- College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, PR China; Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha 410128, PR China; Yuelushan Laboratory, Hongqi Road, Changsha, Hunan, 410128, China.
| | - Jiachao Zhang
- College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, PR China; Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha 410128, PR China; Yuelushan Laboratory, Hongqi Road, Changsha, Hunan, 410128, China
| | - Pufeng Qin
- College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, PR China; Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha 410128, PR China; Yuelushan Laboratory, Hongqi Road, Changsha, Hunan, 410128, China
| | - Lin Luo
- College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, PR China; Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha 410128, PR China; Yuelushan Laboratory, Hongqi Road, Changsha, Hunan, 410128, China
| | - Zhibin Wu
- College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, PR China; Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha 410128, PR China; Yuelushan Laboratory, Hongqi Road, Changsha, Hunan, 410128, China.
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Khan R, Shukla S, Kumar M, Barceló D, Zuorro A, Bhargava PC. Progress and obstacles in employing carbon quantum dots for sustainable wastewater treatment. ENVIRONMENTAL RESEARCH 2024; 261:119671. [PMID: 39048068 DOI: 10.1016/j.envres.2024.119671] [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: 03/18/2024] [Revised: 07/15/2024] [Accepted: 07/22/2024] [Indexed: 07/27/2024]
Abstract
We explored the potential of carbon quantum dots (CQDs) as novel materials for wastewater treatment and their role towards environmental sustainability. The advantages of CQDs over other carbon-based materials, when synthesized using the same precursor material and for the same contaminant are discussed, enabling future researchers to choose the appropriate material. CQDs have demonstrated exceptional adaptability in various wastewater treatment, acting as efficient adsorbents for contaminants, exhibiting excellent photocatalytic properties for degradation of organic pollutants, and functioning as highly sensitive sensors for water quality monitoring. We found that bottom-up approach has better control over particle size (resulting CQDs: 1-4 nm), whereas top-down synthesis approach (resulting CQDs: 2-10 nm) have more potential for large scale applications and tunability. Transmission electron microscopy (TEM) remains the most expensive characterization technique, which provides the best resolution of the CQD's surface. The study emphasizes on the environmental impact and safety considerations pertaining to CQDs by emphasizing the need for thorough toxicity evaluation, and necessary environmental precautions. The study also identifies the lacunae pertaining to critical challenges in practical implementation of CQDs, such as scalability, competition of co-existing contaminants, and stability. Finally, future research directions are proposed, advocating green synthesis approaches, tailored surface functionalization, and, lowering the overall cost for analysis, synthesis and application of CQDs.
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Affiliation(s)
- Ramsha Khan
- Aquatic Toxicology Laboratory, Environmental Toxicology Group, Council of Scientific and Industrial Research-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, 226001, Uttar Pradesh, India.
| | - Saurabh Shukla
- Aquatic Toxicology Laboratory, Environmental Toxicology Group, Council of Scientific and Industrial Research-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, 226001, Uttar Pradesh, India.
| | - Manish Kumar
- Sustainability Cluster, School of Engineering University of Petroleum and Energy Studies Dehradun, Uttarakhand, India; Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Campus Monterey, Monterrey, 64849, Nuevo Leon, Mexico.
| | - Damià Barceló
- Sustainability Cluster, School of Engineering University of Petroleum and Energy Studies Dehradun, Uttarakhand, India; Chemistry and Physics Department, University of Almeria, Ctra Sacramento s/n, 04120, Almería, Spain.
| | - Antonio Zuorro
- Department of Chemical Engineering, Materials and Environment, Sapienza University, Via Eudossiana 18, Rome, 00184, Italy.
| | - Preeti Chaturvedi Bhargava
- Aquatic Toxicology Laboratory, Environmental Toxicology Group, Council of Scientific and Industrial Research-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, 226001, Uttar Pradesh, India.
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Jiang YX, Rani A, Nguyen NT, Nguyen TMP, Chang CT. Electrochemical detection of oxytetracycline employing sugarcane carbon modified graphite electrode. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:41734-41744. [PMID: 38030840 DOI: 10.1007/s11356-023-31090-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 11/13/2023] [Indexed: 12/01/2023]
Abstract
The present study used CeO2-Co3O4 quantum dots@porous carbon/multiwalled carbon nanotube (CeO2-Co3O4 QDs@PC/MWCNT/GE) composites to modify graphite electrodes to fabricate high-sensitivity electrochemical sensors to detect the presence of oxytetracycline (OTC). The quantum dots were made from waste sugarcane bagasse. The electrochemical analysis demonstrated the superior electrochemical performance of CeO2-Co3O4 QDs@PC/MWCNT/GE, with a peak current density of 1.276 mA/cm2. Electrochemical impedance spectroscopy (EIS) revealed lower impedance values for CeO2-Co3O4 QDs@PC/MWCNT/GE compared to other electrodes, indicating enhanced conductivity. The modified electrode exhibited an enlarged electrochemically active area, with values of 0.602 cm2, almost seven times that of the bare graphite electrode (0.079 cm2). The results showed that the CeO2-Co3O4 QDs@PC/MWCNT/GE had excellent performance for OTC detection, and its linear calibration range was 1.007 × 10-8 to 2.04 × 10-7 M (i.e., 0.005-0.1 ppm) and 1.007 × 10-6 to 1.209 × 10-4 M (i.e., 0.5-60 ppm). The limit of detection and limit of quantification were 1.23 nM (0.61 ppb) and 4.09 nM (2.03 ppb) (S/N = 3), respectively. The electrode demonstrated long-term stability for up to 7 weeks. This method provides a new way to prepare electrochemical sensors for OTC detection.
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Affiliation(s)
- Ya-Xuan Jiang
- Department of Environmental Engineering, National Ilan University, Yilan, 260, Taiwan ROC
- Department of Environmental Engineering, National Chung Hsing University, Hsinchu, 26047, Taiwan ROC
| | - Aishwarya Rani
- Department of Environmental Engineering, National Ilan University, Yilan, 260, Taiwan ROC
- Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei, 10617, Taiwan ROC
| | - Nhat-Thien Nguyen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, 10608, Taiwan ROC
| | - Thi-Minh-Phuong Nguyen
- Faculty of Environmental and Natural Sciences, Duy Tan University, Da Nang, 550000, Vietnam
- Institute of Research and Development, Duy Tan University, Da Nang, 550000, Vietnam
| | - Chang-Tang Chang
- Department of Environmental Engineering, National Ilan University, Yilan, 260, Taiwan ROC.
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Sudewi S, Sai Sashank PV, Kamaraj R, Zulfajri M, Huang GG. Understanding Antibiotic Detection with Fluorescence Quantum Dots: A Review. J Fluoresc 2024:10.1007/s10895-024-03743-4. [PMID: 38771407 DOI: 10.1007/s10895-024-03743-4] [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: 03/09/2024] [Accepted: 04/29/2024] [Indexed: 05/22/2024]
Abstract
The utilization of fluorescent quantum dots (FL QDs) has gained significant traction in the realm of antibiotic detection, owing to their exceptional FL properties and versatility. Various types of QDs have been tailored to exhibit superior FL characteristics, employing diverse capping agents such as metals, surfactants, polymers, and biomass to protect and stabilize their surfaces. In their evolution, FL QDs have demonstrated both "turn-off" and "turn-on" mechanisms in response to the presence of analytes, offering promising avenues for biosensing applications. This review article provides a comprehensive overview of the recent advancements in antibiotic detection utilizing FL QDs as biosensors. It encompasses an extensive examination of different types of FL QDs, including carbon, metal, and core-shell QDs, deployed for the detection of antibiotics. Furthermore, the synthesis methods employed for the fabrication of various FL QDs are elucidated, shedding light on the diverse approaches adopted in their preparation. Moreover, this review delves into the intricate sensing mechanisms underlying FL QDs-based antibiotic detection. Various mechanisms, such as photoinduced electron transfer, electron transfer, charge transfer, Forster resonance energy transfer, static quenching, dynamic quenching, inner filter effect, hydrogen bonding, and aggregation-induced emission, are discussed in detail. These mechanisms provide a robust scientific rationale for the detection of antibiotics using FL QDs, showcasing their potential for sensitive and selective sensing applications. Finally, the review addresses current challenges and offers perspectives on the future improvement of FL QDs in sensing applications. Insights into overcoming existing limitations and harnessing emerging technologies are provided, charting a course for the continued advancement of FL QDs-based biosensing platforms in the field of antibiotic detection.
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Affiliation(s)
- Sri Sudewi
- Department of Pharmacy, Faculty of Mathematics and Natural Science, Universitas Sam Ratulangi, Manado, 95115, Indonesia
| | - Penki Venkata Sai Sashank
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
| | - Rajiv Kamaraj
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
| | - Muhammad Zulfajri
- Department of Chemistry Education, Universitas Serambi Mekkah, Banda Aceh, Aceh, 23245, Indonesia.
| | - Genin Gary Huang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, 80708, Taiwan.
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan.
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5
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Long T, Luo H, Li H, Sun J, Wang Y, Zhou J, Chen Y, Xu D. Fe-doping green fluorescent carbon dots via co-electrolysis of chrysoidine G and potassium ferrocyanide for sensitive Cr(VI) detection. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 311:124010. [PMID: 38340446 DOI: 10.1016/j.saa.2024.124010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 01/29/2024] [Accepted: 02/05/2024] [Indexed: 02/12/2024]
Abstract
In this study, we aimed to synthesis of Fe-doping green fluorescent carbon dots (G-CDs) through the co-electrolysis of chrysoidine G and potassium ferrocyanide for Cr(VI) detection. The use of potassium ferrocyanide improves the quantum yield and sensing performance of G-CDs toward Cr(VI). The G-CDs have a maximum excitation wavelength of 308 nm and an emission wavelength of 510 nm. Comprehensive analyses including Raman, FT-IR, and XPS provided insights into the chemical structure and composition of the G-CDs. Under optimal conditions, G-CDs demonstrated concentration-dependent quenching upon interaction with Cr(VI). A linear relationship within the range of 0.25-100 µM was established with a calibration equation of ΔF/F0 = 0.005 + 0.015CCr(VI), yielding an R2 value of 0.996 and a limit of detection of 0.15 μM. The applicability of the G-CDs method was demonstrated by successful Cr(VI) detection in water samples with recovery rates ranging from 98.8 % to 100.1 % and relative standard deviation within 3.0 %. The fluorescence lifetime and Zeta potential measurements confirmed that the mechanism was via a static quenching process, while redox reaction, nanoparticle aggregation, and surface charge variation also played significant roles.
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Affiliation(s)
- Tiantian Long
- National Engineering Laboratory for Rice and By-products Further Processing, College of Food Science and Engineering, Central South University of Forestry & Technology, Changsha, 410004, China; College of Food Science and Engineering, Xinjiang Institute of Technology, Aksu, 843100, China
| | - Hongmei Luo
- National Engineering Laboratory for Rice and By-products Further Processing, College of Food Science and Engineering, Central South University of Forestry & Technology, Changsha, 410004, China
| | - Hongchen Li
- National Engineering Laboratory for Rice and By-products Further Processing, College of Food Science and Engineering, Central South University of Forestry & Technology, Changsha, 410004, China
| | - Jingbo Sun
- National Engineering Laboratory for Rice and By-products Further Processing, College of Food Science and Engineering, Central South University of Forestry & Technology, Changsha, 410004, China
| | - Yang Wang
- Department of Urology, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou, Hainan 570000, China
| | - Jiaquan Zhou
- Department of Urology, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou, Hainan 570000, China
| | - Yi Chen
- Hunan Intellijoy Biotechnology Co., Ltd., Changsha, Hunan 410125, China
| | - Dong Xu
- National Engineering Laboratory for Rice and By-products Further Processing, College of Food Science and Engineering, Central South University of Forestry & Technology, Changsha, 410004, China.
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Zhang C, Lu K, Li L, Lei W, Xia M, Wang F. A water-stabilized Tb-MOF can be used as a sensitive and selective fluorescence sensor for the detection of oxytetracycline hydrochloride. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 304:123379. [PMID: 37729814 DOI: 10.1016/j.saa.2023.123379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 08/06/2023] [Accepted: 09/07/2023] [Indexed: 09/22/2023]
Abstract
Oxytetracycline hydrochloride (OTC) is a commonly used over-the-counter antibiotic, valued for its potent antibacterial properties. However, the inappropriate and excessive use of OTC can result in the accumulation of the drug in both the environment and human body, causing significant harm to ecosystems and human health. Therefore, the development of a fast and sensitive method for detecting OTC is of great significance. Lanthanide metal-organic frameworks (LnMOFs) can effectively excite lanthanide metals to emit long-lifetime, narrow and stable fluorescence based on the antenna effect, but their application in fluorescence sensing is rarely reported. In this work, a strongly fluorescent material Tb-MOF was synthesized by a facile solvothermal method using 1,2,4,5-phenylenetetracarboxylic acid (H4btec) and 1,10-phenanthroline (1,10-phen) as organic ligands and lanthanide metal Tb as the luminescent center. Tb-MOF is a stable material in water and shows excellent linearity with OTC in the concentration range of 0 ∼ 70 μM, with low detection limit (0.12 μM) and luminescence color transition from bright green to dark green during the detection process. X-ray diffraction, UV-vis absorption and fluorescence lifetime analyses revealed that the fluorescence quenching of Tb-MOF by OTC is caused by the inner filter effect in static quenching. Test strips for OTC detection were successfully prepared using Tb-MOF. These strips are not only low cost and easy to prepare but can also be used as portable sensing devices that can be easily distinguished by the naked eye during OTC testing. This study not only presents a fluorescent probe for the detection of OTC in water but also offers a practical method for converting fluorescent luminescent materials into functional devices for OTC detection.
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Affiliation(s)
- Ciyang Zhang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Keren Lu
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Linrui Li
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Wu Lei
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China.
| | - Mingzhu Xia
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China.
| | - Fengyun Wang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China.
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7
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Thakur S, Bains A, Sridhar K, Kaushik R, Chawla P, Sharma M. Valorization of food industrial waste: Green synthesis of carbon quantum dots and novel applications. CHEMOSPHERE 2024; 347:140656. [PMID: 37951400 DOI: 10.1016/j.chemosphere.2023.140656] [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: 08/17/2023] [Revised: 10/22/2023] [Accepted: 11/06/2023] [Indexed: 11/14/2023]
Abstract
Food analysis is a key element in monitoring food quality for risk assessment concerning public health. Instead of using chemically prepared carbon sources for food analysis, eco-friendly and green technology based CQDs are in great demand due to their least toxicity. Carbon quantum dots (CQDs) represent an innovative group of fluorescent nanomaterials, possessing characteristics like photoluminescence, minimal toxicity, high water solubility, and a strong affinity for biocompatibility. Their versatility extends to various applications in fields like sensor technology, biomedicine, and photocatalysis, among other areas. This paper reviews the current challenges related to the use of food by-products as a source of carbon not only enhances the value of waste but also facilitates food safety detection. The integration of CQDs into food technology for food safety analysis shows a great impact on the economy and environment. Furthermore, the details of synthesis, toxicity, application, and characterization of CQDs were also described along with a brief conceptual overview. Particularly, the detection of food additives, food-borne pathogens, heavy metal ions, and pesticide residues was also elaborated. Furthermore, the advantages and the drawbacks are also discussed, with an emphasis on their future prospects in this emerging research field. This review concluded that the use of food residual components has been associated with several toxic effects and accumulation of these residues leads to many disorders like cancer, neurological disorder, reproductive disease, cardiovascular and arthritis. Moreover, the carbon source produced from food waste interacted with other functional groups like oxygen, hydrogen, and nitrogen through π- π* and n- π* interactions. Overall, understanding the mechanism of fluorescence quenching of residual components is of great interest in the field of food detection, as it can provide insights into the design of cost-effective fluorescence probes with low toxicity.
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Affiliation(s)
- Sweezee Thakur
- Department of Food Technology and Nutrition, School of Agriculture, Lovely Professional University, Phagwara, 144411, Punjab, India
| | - Aarti Bains
- Department of Microbiology, Lovely Professional University, Phagwara, 144411, Punjab, India
| | - Kandi Sridhar
- Department of Food Technology, Karpagam Academy of Higher Education (Deemed to be University), Coimbatore, 641021, India
| | - Ravinder Kaushik
- School of Health Sciences, University of Petroleum and Energy Studies, Dehradun, 248007, Uttrakhand, India
| | - Prince Chawla
- Department of Food Technology and Nutrition, School of Agriculture, Lovely Professional University, Phagwara, 144411, Punjab, India.
| | - Minaxi Sharma
- Department of Applied Biology, University of Science and Technology Meghalaya, Baridua, 793101, India.
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Chuan H, Li B, Wang Z, Wang J, Xie P, Liu Y. Feedback of lake trophic status via MC-LR fluorescence technique. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 267:115671. [PMID: 37951093 DOI: 10.1016/j.ecoenv.2023.115671] [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: 07/10/2023] [Revised: 11/02/2023] [Accepted: 11/07/2023] [Indexed: 11/13/2023]
Abstract
Eutrophication remains one of the most challenging environmental problems, and microcystin-leucine-arginine (MC-LR) produced in eutrophic waters would cause serious ecological risks. However, the traditional assessment methods of trophic status, such as water quality index (WQI) and trophic status index (TSI), could not directly reflect the existence or concentration of MC-LR in water. Moreover, traditional MC-LR detection methods are costly and time-consuming. Therefore, it remains a challenge to develop a method that can simply and quickly reflect the level of MC-LR. Herein, a novel probe with specific response to MC-LR was proposed to assess the distribution characteristics of MC-LR in water bodies. By combining the response signal of the probe with the filtered water sample and the water quality parameters, a more accurate assessment tool for MC-LR was obtained. This probe can specifically respond to MC-LR in aqueous solution, and its fluorescence signal is enhanced with the increase of MC-LR concentration. More importantly, the fluorescent signal of the probe showed a significant positive correlation with MC-LR concentration in water samples. This visualization tool has practical application potential for the preliminary assessment of MC-LR in eutrophic waters.
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Affiliation(s)
- Huiyan Chuan
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming 650500, PR China
| | - Bingyan Li
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming 650500, PR China
| | - Zhaomin Wang
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming 650500, PR China
| | - Jie Wang
- Yunnan Water Science Research Institute, Kunming 650500, Yunnan, PR China
| | - Ping Xie
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming 650500, PR China; Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, PR China.
| | - Yong Liu
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming 650500, PR China.
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Akram Z, Raza A, Mehdi M, Arshad A, Deng X, Sun S. Recent Advancements in Metal and Non-Metal Mixed-Doped Carbon Quantum Dots: Synthesis and Emerging Potential Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2336. [PMID: 37630922 PMCID: PMC10459133 DOI: 10.3390/nano13162336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/05/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023]
Abstract
In nanotechnology, the synthesis of carbon quantum dots (CQDs) by mixed doping with metals and non-metals has emerged as an appealing path of investigation. This review offers comprehensive insights into the synthesis, properties, and emerging applications of mixed-doped CQDs, underlining their potential for revolutionary advancements in chemical sensing, biosensing, bioimaging, and, thereby, contributing to advancements in diagnostics, therapeutics, and the under standing of complex biological processes. This synergistic combination enhances their sensitivity and selectivity towards specific chemical analytes. The resulting CQDs exhibit remarkable fluorescence properties that can be involved in precise chemical sensing applications. These metal-modified CQDs show their ability in the selective and sensitive detection from Hg to Fe and Mn ions. By influencing their exceptional fluorescence properties, they enable precise detection and monitoring of biomolecules, such as uric acid, cholesterol, and many antibiotics. Moreover, when it comes to bioimaging, these doped CQDs show unique behavior towards detecting cell lines. Their ability to emit light across a wide spectrum enables high-resolution imaging with minimal background noise. We uncover their potential in visualizing different cancer cell lines, offering valuable insights into cancer research and diagnostics. In conclusion, the synthesis of mixed-doped CQDs opens the way for revolutionary advancements in chemical sensing, biosensing, and bioimaging. As we investigate deeper into this field, we unlock new possibilities for diagnostics, therapeutics, and understanding complex biological processes.
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Affiliation(s)
- Zubair Akram
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China; (Z.A.); (A.R.); (A.A.); (X.D.)
| | - Ali Raza
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China; (Z.A.); (A.R.); (A.A.); (X.D.)
| | - Muhammad Mehdi
- College of Chemistry & Pharmacy, Northwest A&F University, Xianyang 712100, China;
| | - Anam Arshad
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China; (Z.A.); (A.R.); (A.A.); (X.D.)
| | - Xiling Deng
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China; (Z.A.); (A.R.); (A.A.); (X.D.)
| | - Shiguo Sun
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China; (Z.A.); (A.R.); (A.A.); (X.D.)
- College of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
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10
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Zhao Y, Cheng G, Gao Y, Cui L, Zhao Y, Zhang Y, Tian Y, Zhao Y, Zhang Y, Qu H, Kong H. Green synthetic natural carbon dots derived from Fuligo Plantae with inhibitory effect against alcoholic gastric ulcer. Front Mol Biosci 2023; 10:1223621. [PMID: 37484528 PMCID: PMC10360179 DOI: 10.3389/fmolb.2023.1223621] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 06/29/2023] [Indexed: 07/25/2023] Open
Abstract
Introduction: Fuligo Plantae (FP), the ash that sticks to the bottom of pots or chimneys after weeds burn, has long been used for its hemostatic effects and treatment of gastrointestinal bleeding. Nevertheless, the active ingredient of FP still needs to be further explored. Methods: The microstructure, optical and chemical properties of FP-CDs were characterized. An alcohol-induced gastric ulcer model was utilized to evaluate whether pre-administration of FP-CDs alleviated gastric bleeding symptoms and ameliorated gastric mucosal barrier disruption. In addition, the feces of each group of rats were extracted for 16S rDNA genome sequencing of intestinal flora. Results: FP-CDs with a diameter ranging from 1.4-3.2 nm had abundant chemical groups, which may be beneficial to the exertion of inherent activity. FP-CDs alleviated alcohol-induced gastric ulcer, as demonstrated by activating the extrinsic coagulation pathway, alleviating inflammation, and suppressing oxidative stress levels. More interestingly, FP-CDs can improve the diversity and dysbiosis of intestinal flora in rats with alcohol-induced gastric ulcer. Conclusion: These comes about illustrate the momentous inhibitory effects of FP-CDs on alcoholic gastric ulcer in rats, which give a modern methodology for investigating the effective ingredient of FP, and lay an experimental basis for the application of FP-CDs in the clinical treatment of alcoholic gastric ulcer.
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Affiliation(s)
- Yusheng Zhao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Guoliang Cheng
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Yushan Gao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Luming Cui
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Yafang Zhao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Yifan Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Yu Tian
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Yan Zhao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Yue Zhang
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Huihua Qu
- Centre of Scientific Experiment, Beijing University of Chinese Medicine, Beijing, China
| | - Hui Kong
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
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11
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Yang Z, Yang X, Zhang Y, Fan X, Cao Y, Li Z, Dong C. Detection of oxytetracycline in milk using a novel carbon dots-based fluorescence probe via facile pyrolysis synthesis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:84002-84010. [PMID: 37353701 DOI: 10.1007/s11356-023-28380-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 06/18/2023] [Indexed: 06/25/2023]
Abstract
Amphiphilic blue-fluorescence carbon dots (B-CDs) were synthesized via pyrolysis method with citric acid and oleamine as precursors. B-CDs are monodispersed in ethanol, toluene, and ultrapure water with the average particle sizes of 3.33 nm, 2.05 nm, and 4.12 nm, respectively. The maximum emission wavelength of the B-CDs excitation at 370 nm is located at 459 nm. The B-CDs have good optical properties with excellent photostability. The fluorescence quantum yield (QY) of the as-prepared CDs is as high as 30.17%. The fluorescence of B-CDs is quenched because of static quenching by oxytetracycline. A high selective and sensitive fluorescence probe for detecting oxytetracycline was constructed with a linear range of 1.52-27.60 µg/mL and the detection limit of 0.33 µg/mL. The B-CDs-based fluorescence probe can be applied to analyze oxytetracycline in milk; the recoveries and relative standard are satisfactory. Furthermore, the B-CDs were exploited for imaging of SH-SY5Y cells. The results demonstrate that as-synthesized CDs can serve as a cellular imaging reagent owing to remarkable bioimaging performance. This work provides a new strategy for the detection of oxytetracycline in food.
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Affiliation(s)
- Zhenhua Yang
- Institute of Environmental Science, Shanxi University, Wucheng Road 92#, Taiyuan, 030006, Shanxi Province, China
| | - Xintong Yang
- Institute of Environmental Science, Shanxi University, Wucheng Road 92#, Taiyuan, 030006, Shanxi Province, China
| | - Yuexia Zhang
- Institute of Environmental Science, Shanxi University, Wucheng Road 92#, Taiyuan, 030006, Shanxi Province, China
| | - Xiaopeng Fan
- Institute of Environmental Science, Shanxi University, Wucheng Road 92#, Taiyuan, 030006, Shanxi Province, China
| | - Yujuan Cao
- Institute of Environmental Science, Shanxi University, Wucheng Road 92#, Taiyuan, 030006, Shanxi Province, China
| | - Zhongping Li
- Institute of Environmental Science, Shanxi University, Wucheng Road 92#, Taiyuan, 030006, Shanxi Province, China
| | - Chuan Dong
- Institute of Environmental Science, Shanxi University, Wucheng Road 92#, Taiyuan, 030006, Shanxi Province, China.
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12
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Long T, Hu Z, Gao Z, Luo H, Li H, Chen Y, Liu L, Xu D. Carbon dots electrochemically prepared from dopamine and epigallocatechin gallate for hypochlorite detection with high selectivity via a dynamic quenching mechanism. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 301:122947. [PMID: 37295382 DOI: 10.1016/j.saa.2023.122947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 05/25/2023] [Accepted: 05/27/2023] [Indexed: 06/12/2023]
Abstract
Monitoring hypochlorite levels in water is of great importance because of its high toxicity and wide applications as water disinfectants. In this manuscript, carbon dot (CD) was electrochemically prepared by using dopamine and epigallocatechin gallate (molar ratio 1:1) as the carbon source for efficient hypochlorite determination. By electrolyzing the solution at 10 V for 12 min with PBS as an electrolyte, dopamine would react with epigallocatechin at the anode, and through polymerization, dehydration, and carbonization, strong blue-fluorescent CDs were obtained. CDs were characterized by UV-Vis spectroscopy, fluorescence spectroscopy, high-resolution transmission electron microscopy, FT-IR, etc. These CDs have an excitation wavelength at 372 nm and an emission wavelength at 462 nm, owing an average particle size of 5.5 nm. The presence of hypochlorites can quench the fluorescence of CDs, and its reduction in intensity is linear with hypochlorite concentration over the range of 0.5-50 μM, ΔF/F0 = 0.0056 + 0.0194CClO-, R2=0.997. The detection limit achieved 0.23 μM (S/N = 3). The mechanism for fluorescence quenching is via a dynamic process. Different from many other fluorescence methods based on the strong oxidizing ability of hypochlorites, our method shows strong selectivity toward hypochlorites over other oxidizing agents such as H2O2. The assay was validated by the detection of hypochlorites in water samples, with recoveries between 98.2% and 104.3%.
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Affiliation(s)
- Tiantian Long
- The Health Management Department of the Third Xiangya Hospital, Central South University, Changsha 410013, China; National Engineering Laboratory for Rice and By-products Further Processing, College of Food Science and Engineering, Central South University of Forestry & Technology, Changsha 410004, China; College of Food Science and Engineering, Xinjiang Institute of Technology, Aksu 843100, China
| | - Zhongyang Hu
- The Neurology Department of the Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Ziyun Gao
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Hongmei Luo
- The Health Management Department of the Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Hongchen Li
- The Health Management Department of the Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Yi Chen
- Hunan Intellijoy Biotechnology Co., Ltd., Changsha, Hunan 410125, China
| | - Lei Liu
- The Health Management Department of the Third Xiangya Hospital, Central South University, Changsha 410013, China.
| | - Dong Xu
- National Engineering Laboratory for Rice and By-products Further Processing, College of Food Science and Engineering, Central South University of Forestry & Technology, Changsha 410004, China.
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13
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Weerasinghe J, Prasad K, Mathew J, Trifoni E, Baranov O, Levchenko I, Bazaka K. Carbon Nanocomposites in Aerospace Technology: A Way to Protect Low-Orbit Satellites. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13111763. [PMID: 37299666 DOI: 10.3390/nano13111763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/10/2023] [Accepted: 05/22/2023] [Indexed: 06/12/2023]
Abstract
Recent advancements in space technology and reduced launching cost led companies, defence and government organisations to turn their attention to low Earth orbit (LEO) and very low Earth orbit (VLEO) satellites, for they offer significant advantages over other types of spacecraft and present an attractive solution for observation, communication and other tasks. However, keeping satellites in LEO and VLEO presents a unique set of challenges, in addition to those typically associated with exposure to space environment such as damage from space debris, thermal fluctuations, radiation and thermal management in vacuum. The structural and functional elements of LEO and especially VLEO satellites are significantly affected by residual atmosphere and, in particular, atomic oxygen (AO). At VLEO, the remaining atmosphere is dense enough to create significant drag and quicky de-orbit satellites; thus, thrusters are needed to keep them on a stable orbit. Atomic oxygen-induced material erosion is another key challenge to overcome during the design phase of LEO and VLEO spacecraft. This review covered the corrosion interactions between the satellites and the low orbit environment, and how it can be minimised through the use of carbon-based nanomaterials and their composites. The review also discussed key mechanisms and challenges underpinning material design and fabrication, and it outlined the current research in this area.
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Affiliation(s)
- Janith Weerasinghe
- School of Engineering, College of Engineering, Computing and Cybernetics, The Australian National University, Canberra, ACT 2600, Australia
| | - Karthika Prasad
- School of Engineering, College of Engineering, Computing and Cybernetics, The Australian National University, Canberra, ACT 2600, Australia
| | - Joice Mathew
- Advanced Instrumentation and Technology Centre, Research School of Astronomy & Astrophysics, ANU College of Science, The Australian National University, Canberra, ACT 2600, Australia
| | - Eduardo Trifoni
- Advanced Instrumentation and Technology Centre, Research School of Astronomy & Astrophysics, ANU College of Science, The Australian National University, Canberra, ACT 2600, Australia
| | - Oleg Baranov
- Department of Theoretical Mechanics, Engineering and Robomechanical Systems, National Aerospace University, 61070 Kharkiv, Ukraine
- Department of Gaseous Electronics, Jozef Stefan Institute, 1000 Ljubljana, Slovenia
| | - Igor Levchenko
- School of Engineering, College of Engineering, Computing and Cybernetics, The Australian National University, Canberra, ACT 2600, Australia
- Plasma Sources and Application Centre, NIE, Nanyang Technological University, Singapore 637616, Singapore
| | - Kateryna Bazaka
- School of Engineering, College of Engineering, Computing and Cybernetics, The Australian National University, Canberra, ACT 2600, Australia
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14
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Li Q, Wu X, Zhang X, Su W, Tan Y, Fan P, Liu J, Yang S. Green and rapid synthesis of biomass carbon dot-based fluorescence sensing for the sensitive determination of oxytetracycline. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:1569-1575. [PMID: 36883525 DOI: 10.1039/d2ay02031a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Eco-friendly biomass carbon dots (CDs) with blue fluorescence emission were rapidly synthesized by a microwave method. Based on the inner filter effect (IFE) between oxytetracycline (OTC) and CDs, the fluorescence of CDs could be selectively quenched by OTC. Therefore, a simple and time-saving fluorescence sensing system for the detection of OTC was established. Under optimal experimental conditions, the concentration of OTC showed a good linear relationship with fluorescence quenching values (ΔF) in the range of 4.0-100.0 μmol L-1, a corresponding correlation coefficient (r) of 0.9975, and a detection limit of 0.12 μmol L-1. The method has the advantages of low cost, time-saving, and green synthesis that could be used for the determination of OTC. Moreover, possessing high sensitivity and specificity, this fluorescence sensing method was successfully applied for detecting OTC in milk, indicating its potential applications in food safety.
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Affiliation(s)
- Qianji Li
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
| | - Xiwen Wu
- Yueyang County Center for Disease Control and Prevention, Yueyang, Hunan, 414100, People's Republic of China
| | - Xiaohuan Zhang
- Yongding District Center for Disease Control and Prevention, Zhangjiajie, Hunan, 427000, People's Republic of China
| | - Wenen Su
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
| | - Yan Tan
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
| | - Pengfei Fan
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
| | - Jinquan Liu
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
| | - Shengyuan Yang
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
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15
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Carbon Quantum Dots: Synthesis, Structure, Properties, and Catalytic Applications for Organic Synthesis. Catalysts 2023. [DOI: 10.3390/catal13020422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
Abstract
Carbon quantum dots (CQDs), also known as carbon dots (CDs), are novel zero-dimensional fluorescent carbon-based nanomaterials. CQDs have attracted enormous attention around the world because of their excellent optical properties as well as water solubility, biocompatibility, low toxicity, eco-friendliness, and simple synthesis routes. CQDs have numerous applications in bioimaging, biosensing, chemical sensing, nanomedicine, solar cells, drug delivery, and light-emitting diodes. In this review paper, the structure of CQDs, their physical and chemical properties, their synthesis approach, and their application as a catalyst in the synthesis of multisubstituted 4H pyran, in azide-alkyne cycloadditions, in the degradation of levofloxacin, in the selective oxidation of alcohols to aldehydes, in the removal of Rhodamine B, as H-bond catalysis in Aldol condensations, in cyclohexane oxidation, in intrinsic peroxidase-mimetic enzyme activity, in the selective oxidation of amines and alcohols, and in the ring opening of epoxides are discussed. Finally, we also discuss the future challenges in this research field. We hope this review paper will open a new channel for the application of CQDs as a catalyst in organic synthesis.
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16
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Inner-filter Effect Induced Fluorescence Quenching of Carbon Dots for Cr(VI) Detection with High Sensitivity. J Fluoresc 2022; 32:2343-2350. [PMID: 36156168 DOI: 10.1007/s10895-022-03028-8] [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: 07/29/2022] [Accepted: 09/12/2022] [Indexed: 10/14/2022]
Abstract
Carbon dots (CDs) were used to develop a sensitive sensing technique for detecting Cr(VI). CDs were made using a hydrothermal technique from citric acid and glutamic acid. These prepared CDs emitted blue fluorescence under excitation of 350 nm (λem = 420 nm), and the fluorescence quantum yield was 48.41%. Transmission electron microscope was used to examine the morphology of the CDs, which had an average size of 2.21 ± 0.39 nm. The elementary composition and bonding structure of the CDs were conducted by XPS and FT-IR spectrum. Cr(VI) quenched the fluorescence of CDs through a static quenching effect and an inner filter effect, allowing Cr(VI) to be detected quantitatively. This approach was used to detect Cr(VI) in two samples of water, with the findings demonstrating that it is reliable and accurate. The fluorescence intensity change was linearly related to the concentration of Cr(VI) in the range from 0.5 to 400 μM, with the detection limit being 0.10 μM. This approach has the virtues of wide detection range, low cost and fast response. The strategy has a great application prospect for detecting Cr(VI) in practical samples.
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17
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Chen S, Ouyang W, Zhu Y, He L, Zou L, Ao X, Liu S, Yang Y, Li J. Facile Synthesis of N, S-Doped Carbon Quantum Dots from Food Waste as Fluorescent Probe for Sensitive Detection of Thiamphenicol and Its Analogues in Real Food Samples along with an Application in Bioimaging. Foods 2022; 11:foods11162414. [PMID: 36010413 PMCID: PMC9407342 DOI: 10.3390/foods11162414] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 08/03/2022] [Accepted: 08/07/2022] [Indexed: 12/03/2022] Open
Abstract
Herein, N, S co-doped carbon quantum dots (N, S-CDs) with high absolute quantitative yield (Abs-QY) of 50.2% were produced by hydrothermal treatment of food residue crayfish shells. A new detection method of thiamphenicol (TAP) and its analogues was established by discovering the obvious fluorescence response between TAP and N, S-CDs, which achieved a wide linear range of 20–300 μg·L−1 with a detection limit (LOD) of 11.12 μg·L−1. This novel probe exhibited strong sensitivity and shows rapid response in complex food matrices (overall detection time is less than 45 min) mainly induced by static quenching. Spiked food sample recovery ranged from 97.3 to 99.34%. Further, the cell experiments of N, S-CDs were conducted, and the cell viability remained 91.76% under high concentration of N, S-CDs due to the environmentally friendly materials. The low cytotoxicity and good cytocompatibility make these N, S-CDs compatible for cell bioimaging and intracellular detection of TAP.
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Affiliation(s)
- Shujuan Chen
- College of Food Science, Sichuan Agricultural University, Ya’an 625014, China
- Correspondence: ; Tel.: +86-0835-2882311
| | - Wanlin Ouyang
- College of Food Science, Sichuan Agricultural University, Ya’an 625014, China
- Yi’yang Agricultural Products Quality Inspection and Testing Center, Yi’yang 413000, China
| | - Yiting Zhu
- College of Food Science, Sichuan Agricultural University, Ya’an 625014, China
| | - Li He
- College of Food Science, Sichuan Agricultural University, Ya’an 625014, China
| | - Likou Zou
- College of Resources, Sichuan Agricultural University, Chengdu 611130, China
| | - Xiaolin Ao
- College of Food Science, Sichuan Agricultural University, Ya’an 625014, China
| | - Shuliang Liu
- College of Food Science, Sichuan Agricultural University, Ya’an 625014, China
| | - Yong Yang
- College of Food Science, Sichuan Agricultural University, Ya’an 625014, China
| | - Jianlong Li
- College of Food Science, Sichuan Agricultural University, Ya’an 625014, China
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18
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Chen Y, Tang Y, Liu Y, Zhao F, Zeng B. Kill two birds with one stone: Selective and fast removal and sensitive determination of oxytetracycline using surface molecularly imprinted polymer based on ionic liquid and ATRP polymerization. JOURNAL OF HAZARDOUS MATERIALS 2022; 434:128907. [PMID: 35452985 DOI: 10.1016/j.jhazmat.2022.128907] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 04/08/2022] [Accepted: 04/10/2022] [Indexed: 06/14/2023]
Abstract
Oxytetracycline (OTC) residue in food and environment has potential threats to ecosystem and human health, thus its sensitive monitoring and effective elimination are very important. In this work, a new molecularly imprinted polymer (MIP) composite was prepared through atom transfer radical polymerization by using OTC as template, gold nanoparticles modified carbon nanospheres (Au-CNS) as supporter, ionic liquids (IL) as functional monomer and cross-linking agent. The obtained MIP-IL@Au-CNS composite was characterized by Fourier transform infrared absorption spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy and transmission electron microscopy. It displayed high imprinting factor (5.50) and adsorption capacity (56.7 mg g-1), and could achieved the adsorption equilibrium in short time (about 15 min). Results also illustrated that the adsorption process basically conformed to the quasi-second-order kinetic model and Freundlich model, and MIP-IL@Au-CNS could be recycled at least 5 times. Furthermore, a sensitive OTC electrochemical sensor was developed by combining MIP-IL@Au-CNS with IL-modified carbon nanocomposites (IL@N-rGO-MWCNT). The resulting sensor demonstrated a linear response to OTC in the wide range of 0.02-20 μM, and the detection limit was down to 5 nM. It also had the advantages of high selectivity, fast elution/regeneration and simple construction procedure. The sensor had been applied to the detection of real samples, and acceptable recovery (96.4%-106%) and RSD (3.2%-6.2%) were obtained. This work expands the application of IL-based MIP in pollutant monitoring and enriching.
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Affiliation(s)
- Yanran Chen
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei Province, PR China
| | - Yun Tang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei Province, PR China
| | - Yiwei Liu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei Province, PR China
| | - Faqiong Zhao
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei Province, PR China
| | - Baizhao Zeng
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei Province, PR China.
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19
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Characterization of Carbon Nanostructures by Photoelectron Spectroscopies. MATERIALS 2022; 15:ma15134434. [PMID: 35806559 PMCID: PMC9267296 DOI: 10.3390/ma15134434] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 06/06/2022] [Accepted: 06/16/2022] [Indexed: 02/04/2023]
Abstract
Recently, the scientific community experienced two revolutionary events. The first was the synthesis of single-layer graphene, which boosted research in many different areas. The second was the advent of quantum technologies with the promise to become pervasive in several aspects of everyday life. In this respect, diamonds and nanodiamonds are among the most promising materials to develop quantum devices. Graphene and nanodiamonds can be coupled with other carbon nanostructures to enhance specific properties or be properly functionalized to tune their quantum response. This contribution briefly explores photoelectron spectroscopies and, in particular, X-ray photoelectron spectroscopy (XPS) and then turns to the present applications of this technique for characterizing carbon nanomaterials. XPS is a qualitative and quantitative chemical analysis technique. It is surface-sensitive due to its limited sampling depth, which confines the analysis only to the outer few top-layers of the material surface. This enables researchers to understand the surface composition of the sample and how the chemistry influences its interaction with the environment. Although the chemical analysis remains the main information provided by XPS, modern instruments couple this information with spatial resolution and mapping or with the possibility to analyze the material in operando conditions at nearly atmospheric pressures. Examples of the application of photoelectron spectroscopies to the characterization of carbon nanostructures will be reviewed to present the potentialities of these techniques.
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20
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Carbon Quantum Dots Based Chemosensor Array for Monitoring Multiple Metal Ions. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27123843. [PMID: 35744965 PMCID: PMC9227453 DOI: 10.3390/molecules27123843] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 05/26/2022] [Accepted: 05/26/2022] [Indexed: 11/16/2022]
Abstract
The simultaneous identification of multiple metal ions in water has attracted enormous research interest in the past few decades. We herein describe a novel method for multiple metal ion detection using a carbon quantum dots (CQDs)-based chemosensor array and the CQDs are functionalized with different amino acids (glutamine, histidine, arginine, lysine and proline), which act as sensing elements in the sensor array. Eleven metal ions are successfully identified by the designed chemosensor array, with 100% classification accuracy. Importantly, the proposed method allowed the quantitative prediction of the concentration of individual metal ions in the mixture with the aid of a support vector machine (SVM). The sensor array also enables the qualitative detection of unknown metal ions under the interference of tap water and local river water. Thus, the strategy provides a novel high-throughput approach for the identification of various analytes in complex systems.
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21
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Wang L, Liang YS, Wu ZB, Liu YS, Xiao YH, Hu T, Gao R, Fang J, Liu J, Wu AP. Exploring the interaction between Cry1Ac protein and Zn 2+, Cd 2+ metal ions by fluorescence quenching and molecular docking approaches. CHEMOSPHERE 2022; 297:134105. [PMID: 35245590 DOI: 10.1016/j.chemosphere.2022.134105] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 02/19/2022] [Accepted: 02/22/2022] [Indexed: 06/14/2023]
Abstract
Bacillus Thuringiensis (Bt) protein has a strong ability to complex with metal ions, which may increase the transport of metal ions in the soil multi-media system. In this study, the interactions between Cry1Ac protein and metal ions (Zn2+ and Cd2+) were investigated through spectroscopies and molecular docking methods. The spectra results showed that both Zn2+ and Cd2+ quenched the fluorescence intensity of Cry1Ac protein through the static quenching. The binding constants with 4-5 orders of magnitude also indicated the interactions between the ions and the Cry1Ac protein. The thermodynamic analysis showed that hydrogen bonds and van der Waals forces were predominant during the processes. In terms of the Förster non-radiation energy transfer theory, the binding distances between metal ions and Cry1Ac protein were approximately 0.21-0.24 nm, indicating the existence of a non-radiative energy transfer between them. Furthermore, molecular docking revealed that the metal ions participated in ligand binding with the Cry1Ac at the locations Asp569, Thr560, Asn564 and Gln566. The present work provided reasonable models helping us further understand the transport effect of heavy metals in the presence of Cry1Ac. The results could provide mechanistic insights into the nature of metal ions-Cry1Ac interactions and offer important information on the toxicity risk of metal ions-Cry1Ac binding interactions.
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Affiliation(s)
- Li Wang
- College of Resources and Environment, Hunan Agricultural University and Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Changsha, 410128, PR China
| | - Yun-Shan Liang
- College of Resources and Environment, Hunan Agricultural University and Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Changsha, 410128, PR China.
| | - Zhi-Bin Wu
- College of Resources and Environment, Hunan Agricultural University and Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Changsha, 410128, PR China
| | - Yi-Song Liu
- College of Veterinary Medicine, Hunan Agricultural University and National and Local Union Engineering Research Center of Veterinary Herbal Medicine Resource and Initiative, Changsha, 410128, PR China
| | - Yun-Hua Xiao
- College of Bioscience and Biotechnology, Hunan Agricultural University and Hunan Engineering Laboratory for Pollution Control and Waste Utilization in Swine Production, Changsha, 410128, PR China
| | - Teng Hu
- College of Resources and Environment, Hunan Agricultural University and Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Changsha, 410128, PR China
| | - Rong Gao
- College of Resources and Environment, Hunan Agricultural University and Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Changsha, 410128, PR China
| | - Jun Fang
- College of Bioscience and Biotechnology, Hunan Agricultural University and Hunan Engineering Laboratory for Pollution Control and Waste Utilization in Swine Production, Changsha, 410128, PR China
| | - Jiao Liu
- College of Resources and Environment, Hunan Agricultural University and Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Changsha, 410128, PR China
| | - Ai Ping Wu
- College of Resources and Environment, Hunan Agricultural University and Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Changsha, 410128, PR China
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22
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Sabzehmeidani MM, Kazemzad M. Quantum dots based sensitive nanosensors for detection of antibiotics in natural products: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 810:151997. [PMID: 34848263 DOI: 10.1016/j.scitotenv.2021.151997] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 11/09/2021] [Accepted: 11/23/2021] [Indexed: 05/18/2023]
Abstract
Residual antibiotics in food products originated from administration of the antibiotics to animals may be accumulated through food metabolism in the human body and endanger safety and health. Thus, developing a prompt and accurate way for detection of antibiotics is a crucial issue. The zero-dimensional fluorescent probes including metals based, carbon and graphene quantum dots (QDs), are highly sensitive materials to use for the detection of a wide range of antibiotics in natural products. These QDs demonstrate unique optical properties like tunable photoluminescence (PL) and excitation-wavelength dependent emission. This study investigates the trends related to carbon and metal based QDs preparation and modification, and their diverse detection application. We discuss the performance of QDs based sensors application in various detection systems such as photoluminescence, photoelectrochemical, chemiluminescence, electrochemiluminescence, colorimetric, as well as describing their working principles in several samples. The detecting mechanism of a QDs-based sensor is dependent on its properties and specific interactions with particular antibiotics. This review also tries to describe environmental application and future perspective of QDs for antibiotics detection.
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Affiliation(s)
| | - Mahmood Kazemzad
- Department of Energy, Materials and Energy Research Center, Tehran 14155-477, Iran.
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23
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Xu Y, Huang T, Wang S, Yan Y. Mesoporous silica-based molecularly imprinted fluorescence sensor for the ultrafast and sensitive recognition of oxytetracycline. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.104427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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24
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Biocompatible and nuclear penetrating carbon quantum dots for photoresistive bioimaging applications in animal cell lines. GENE REPORTS 2022. [DOI: 10.1016/j.genrep.2022.101519] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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25
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Kumar P, Dua S, Kaur R, Kumar M, Bhatt G. A review on advancements in carbon quantum dots and their application in photovoltaics. RSC Adv 2022; 12:4714-4759. [PMID: 35425490 PMCID: PMC8981368 DOI: 10.1039/d1ra08452f] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 02/23/2022] [Accepted: 01/04/2022] [Indexed: 02/05/2023] Open
Abstract
Carbon quantum dots are a new frontier in the field of fluorescent nanomaterials, and they exhibit fascinating properties such as biocompatibility, low toxicity, eco-friendliness, good water solubility and photostability. In addition, the synthesis of these nanoparticles is facile, rapid, and satisfies green chemistry principles. CQDs have easily tunable optical properties and have found applications in bioimaging, nanomedicine, drug delivery, solar cells, light-emitting diodes, photocatalysis, electrocatalysis and other related areas. This article systematically reviews carbon quantum dot structure, their synthesis techniques, recent advancements, the effects of doping and surface engineering on their optical properties, and related photoluminescence models in detail. The challenges associated with these nanomaterials and their prospects are discussed, and special emphasis has been placed on the application of carbon quantum dots in enhancing the performance of photovoltaics and white light-emitting diodes. This review puts forth the in-depth understanding of the fundamentals of carbon quantum dots(CQDs), recent advancements in the field including a thorough discussion on different roles of CQDs to enhance the performance of solar cells and white-LEDs.![]()
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Affiliation(s)
- Pawan Kumar
- Department of Electronic Science, South Campus University of Delhi, New Delhi-110021, India
- Non-Collegiate Women's Education Board, University of Delhi, New Delhi-110007, India
| | - Shweta Dua
- Bhaskarcaharya College of Applied Sciences, University of Delhi, New Delhi-110075, India
- Non-Collegiate Women's Education Board, University of Delhi, New Delhi-110007, India
| | - Ravinder Kaur
- Deen Dayal Upadhyaya College, University of Delhi, New Delhi-110075, India
- Non-Collegiate Women's Education Board, University of Delhi, New Delhi-110007, India
| | - Mahesh Kumar
- CSIR-National Physical Laboratory (NPL), New Delhi-110012, India
- Non-Collegiate Women's Education Board, University of Delhi, New Delhi-110007, India
| | - Geeta Bhatt
- Deen Dayal Upadhyaya College, University of Delhi, New Delhi-110075, India
- Non-Collegiate Women's Education Board, University of Delhi, New Delhi-110007, India
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26
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Chemometric-assisted kinetic determination of oxytetracycline using AgInS 2 quantum dots as PL sensing platforms. Anal Chim Acta 2021; 1188:339174. [PMID: 34794564 DOI: 10.1016/j.aca.2021.339174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 09/16/2021] [Accepted: 10/12/2021] [Indexed: 12/27/2022]
Abstract
In this work a kinetic fluorometric methodology relying on the time-based monitoring of the photoluminescence quenching of AgInS2 ternary quantum dots induced by oxytetracycline, was developed. The kinetic approach allowed not only to reduce the LOD and improve sensitivity and selectivity but also to collect second-order data that was explored for the quantification of the target analyte in the presence of uncalibrated interfering species. Upon processing the acquired second-order kinetic PL data by unfolded partial least-squares (U-PLS), oxytetracycline was quantified in commercially available pharmaceutical formulations. The obtained results, namely an R2P higher than 0.99 and RE lower than 8%, proved the suitability and accuracy of the developed approach.
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27
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Wu Y, Wei H, van der Mei HC, de Vries J, Busscher HJ, Ren Y. Inheritance of physico-chemical properties and ROS generation by carbon quantum dots derived from pyrolytically carbonized bacterial sources. Mater Today Bio 2021; 12:100151. [PMID: 34746735 PMCID: PMC8554632 DOI: 10.1016/j.mtbio.2021.100151] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 10/04/2021] [Accepted: 10/12/2021] [Indexed: 11/26/2022] Open
Abstract
Bacteria are frequently used in industrial processes and nutrient supplementation to restore a healthy human microflora, but use of live bacteria is often troublesome. Here, we hypothesize that bacterially-derived carbon-quantum-dots obtained through pyrolytic carbonization inherit physico-chemical properties from probiotic and pathogenic source-bacteria. Carbon-quantum-dots carbonized at reaction-temperatures below 200 °C had negligible quantum-yields, while temperatures above 220 °C yielded poor water-suspendability. Fourier-transform infrared-spectroscopy demonstrated preservation of amide absorption bands in carbon-quantum-dots derived at intermediate temperatures. X-ray photoelectron-spectroscopy indicated that the at%N in carbon-quantum-dots increased with increasing amounts of protein in source-bacterial surfaces. Carbonization transformed hydrocarbon-like bacterial surface compounds into heterocyclic aromatic-carbon structures, evidenced by a broad infrared absorption band (920-900 cm−1) and the presence of carbon in C–C functionalities of carbon-quantum-dots. The chemical composition of bacterially-derived carbon-quantum-dots could be explained by the degradation temperatures of main bacterial cell surface compounds. All carbon-quantum-dots generated reactive-oxygen-species, most notably those derived from probiotic lactobacilli, carrying a high amount of surface protein. Concluding, amide functionalities in carbon-quantum-dots are inherited from surface proteins of source-bacteria, controlling reactive-oxygen-species generation. This paves the way for applications of bacterially-derived carbon-quantum-dots in which reactive-oxygen-species generation is essential, instead of hard-to-use live bacteria, such as in food supplementation or probiotic-assisted antibiotic therapy. Pyrolytic carbonization of bacteria between 200°C and 220°C yields water-suspendable CQDs. Bacterially-derived CQDs inherit amide functionalities from bacterial cell surface proteins. Hydrocarbon-like bacterial surface compounds give heterocyclic aromatic-carbon structures in bacterially-derived CQDs. Bacterially-derived CQDs possess graphitic nitrogen. Zeta potentials of CQDs relate with nitrogen occurrence in CQDs.
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Affiliation(s)
- Y Wu
- University of Groningen, University Medical Center of Groningen, Department of Orthodontics, Hanzeplein 1, 9700 RB, Groningen, the Netherlands
| | - H Wei
- University of Groningen, University Medical Center Groningen, Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713 AV, Groningen, the Netherlands
| | - H C van der Mei
- University of Groningen, University Medical Center Groningen, Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713 AV, Groningen, the Netherlands
| | - J de Vries
- University of Groningen, University Medical Center Groningen, Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713 AV, Groningen, the Netherlands
| | - H J Busscher
- University of Groningen, University Medical Center Groningen, Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713 AV, Groningen, the Netherlands
| | - Y Ren
- University of Groningen, University Medical Center of Groningen, Department of Orthodontics, Hanzeplein 1, 9700 RB, Groningen, the Netherlands
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28
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Mansuriya BD, Altintas Z. Carbon Dots: Classification, Properties, Synthesis, Characterization, and Applications in Health Care-An Updated Review (2018-2021). NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2525. [PMID: 34684966 PMCID: PMC8541690 DOI: 10.3390/nano11102525] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 09/16/2021] [Accepted: 09/20/2021] [Indexed: 12/12/2022]
Abstract
Carbon dots (CDs) are usually smaller than 10 nm in size, and are meticulously formulated and recently introduced nanomaterials, among the other types of carbon-based nanomaterials. They have gained significant attention and an incredible interest in the field of nanotechnology and biomedical science, which is merely due to their considerable and exclusive attributes; including their enhanced electron transferability, photobleaching and photo-blinking effects, high photoluminescent quantum yield, fluorescence property, resistance to photo-decomposition, increased electrocatalytic activity, good aqueous solubility, excellent biocompatibility, long-term chemical stability, cost-effectiveness, negligible toxicity, and acquaintance of large effective surface area-to-volume ratio. CDs can be readily functionalized owing to the abundant functional groups on their surfaces, and they also exhibit remarkable sensing features such as specific, selective, and multiplex detectability. In addition, the physico-chemical characteristics of CDs can be easily tunable based on their intended usage or application. In this comprehensive review article, we mainly discuss the classification of CDs, their ideal properties, their general synthesis approaches, and primary characterization techniques. More importantly, we update the readers about the recent trends of CDs in health care applications (viz., their substantial and prominent role in the area of electrochemical and optical biosensing, bioimaging, drug/gene delivery, as well as in photodynamic/photothermal therapy).
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Affiliation(s)
| | - Zeynep Altintas
- Institute of Chemistry, Technical University of Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany;
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29
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Chen S, Lv X, Shen J, Pan S, Jiang Z, Xiao Y, Wen G. Sensitive Aptamer SERS and RRS Assays for Trace Oxytetracycline Based on the Catalytic Amplification of CuNCs. NANOMATERIALS 2021; 11:nano11102501. [PMID: 34684942 PMCID: PMC8541458 DOI: 10.3390/nano11102501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/16/2021] [Accepted: 09/22/2021] [Indexed: 11/16/2022]
Abstract
A new method for the determination of oxytetracycline (OTC) has been established by coupling the catalytic amplification reaction of copper nanoclusters (CuNCs) with the aptamer reaction. CuNCs prepared by a wet chemical method have the catalytic activity for the formation of gold nanoparticles (AuNPs) resulting from a HAuCl4-ethanol (En) reaction. The experimental results showed that OTC aptamer (Apt) can be adsorbed on the surface of CuNCs in a non-specific way, thus inhibiting its catalytic activity. When OTC was added to the solution, the OTC-Apt complex was generated by a specific reaction, which made the CuNCs desorb and restore their catalytic activity. With the increase of OTC, the recovery of the catalytic activity of CuNCs is strengthened, the reaction speed is accelerated, and the number of AuNPs is increased. The generated AuNPs exhibited surface enhanced Raman scattering (SERS) signals at 1615 cm−1 in the presence of Vitoria blue 4R (VB4R) molecular probes, and a resonance Rayleigh scattering (RRS) peak at 586 nm. There is a good linear relationship between the intensities of SERS, or RRS, and OTC concentration at the range of 37.5–300 ng/L or 37.5–225 ng/L, respectively. A new SERS and RRS assay for the determination of trace OTC based on the regulation of CuNCs catalysis was established.
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Affiliation(s)
- Shuxin Chen
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, China; (S.C.); (X.L.); (J.S.); (S.P.); (Z.J.); (Y.X.)
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology for Science and Education Combined with Science and Technology Innovation Base, Guilin 541004, China
| | - Xiaowen Lv
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, China; (S.C.); (X.L.); (J.S.); (S.P.); (Z.J.); (Y.X.)
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology for Science and Education Combined with Science and Technology Innovation Base, Guilin 541004, China
| | - Jifan Shen
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, China; (S.C.); (X.L.); (J.S.); (S.P.); (Z.J.); (Y.X.)
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology for Science and Education Combined with Science and Technology Innovation Base, Guilin 541004, China
| | - Siqi Pan
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, China; (S.C.); (X.L.); (J.S.); (S.P.); (Z.J.); (Y.X.)
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology for Science and Education Combined with Science and Technology Innovation Base, Guilin 541004, China
| | - Zhiliang Jiang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, China; (S.C.); (X.L.); (J.S.); (S.P.); (Z.J.); (Y.X.)
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology for Science and Education Combined with Science and Technology Innovation Base, Guilin 541004, China
| | - Yang Xiao
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, China; (S.C.); (X.L.); (J.S.); (S.P.); (Z.J.); (Y.X.)
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology for Science and Education Combined with Science and Technology Innovation Base, Guilin 541004, China
| | - Guiqing Wen
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, China; (S.C.); (X.L.); (J.S.); (S.P.); (Z.J.); (Y.X.)
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology for Science and Education Combined with Science and Technology Innovation Base, Guilin 541004, China
- Correspondence:
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30
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Yang L, Zeng J, Quan T, Liu S, Deng L, Kang X, Xia Z, Gao D. Liquid-liquid extraction and purification of oil red O derived nitrogen-doped highly photoluminescent carbon dots and their application as multi-functional sensing platform for Cu2+ and tetracycline antibiotics. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106391] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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31
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Preparation of Multifunctional N-Doped Carbon Quantum Dots from Citrus clementina Peel: Investigating Targeted Pharmacological Activities and the Potential Application for Fe 3+ Sensing. Pharmaceuticals (Basel) 2021; 14:ph14090857. [PMID: 34577557 PMCID: PMC8465261 DOI: 10.3390/ph14090857] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 08/21/2021] [Accepted: 08/24/2021] [Indexed: 01/03/2023] Open
Abstract
Carbon quantum dots (CQDs) have recently emerged as innovative theranostic nanomaterials, enabling fast and effective diagnosis and treatment. In this study, a facile hydrothermal approach for N-doped biomass-derived CQDs preparation from Citrus clementina peel and amino acids glycine (Gly) and arginine (Arg) has been presented. The gradual increase in the N-dopant (amino acids) nitrogen content increased the quantum yield of synthesized CQDs. The prepared CQDs exhibited good biocompatibility, stability in aqueous, and high ionic strength media, similar optical properties, while differences were observed regarding the structural and chemical diversity, and biological and antioxidant activity. The antiproliferative effect of CQD@Gly against pancreatic cancer cell lines (CFPAC-1) was observed. At the same time, CQD@Arg has demonstrated the highest quantum yield and antioxidant activity by DPPH scavenging radical method of 81.39 ± 0.39% and has been further used for the ion sensing and cellular imaging of cancer cells. The obtained results have demonstrated selective response toward Fe3+ detection, with linear response ranging from 7.0 µmol dm−3 to 50.0 µmol dm−3 with R2 = 0.9931 and limit of detection (LOD) of 4.57 ± 0.27 µmol dm−3. This research could be a good example of sustainable biomass waste utilization with potential for biomedical analysis and ion sensing applications.
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32
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Huang H, Li J, Pan S, Wang H, Liang A, Jiang Z. A novel small molecular liquid crystal catalytic amplification-nanogold SPR aptamer absorption assay for trace oxytetracycline. Talanta 2021; 233:122528. [PMID: 34215031 DOI: 10.1016/j.talanta.2021.122528] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 05/10/2021] [Accepted: 05/12/2021] [Indexed: 01/13/2023]
Abstract
Liquid crystals (LCs) have been applied for a long time in the field of analytical chemistry. To date, there are no reports about utilization of LCs as the catalyst to amplification analytical signal. In this article, three small molecules LCs in water aqueous solutions were characterized using molecular spectra and particle size analysis. The characterization indicated that there are nanoparticles in the system. Among the them, 4-heptylbenzoic acid (HPB) exhibits the most sensitive performance in the analytical system based on the reduction of HAuCl4 to gold nanoparticles (AuNPs) by NaH2PO2 by the spectrophotometric slope evaluation procedure. As the concentration of LCs catalyst increases, the AuNPs surface plasmon resonance (SPR) absorption peak at 550 nm increases linearly, that can be utilized to amply the absorption signal. Based on the LCs catalytic amplification reaction and immunoreaction, a new SPR spectrophotometric analysis method was developed for the label-free detection of oxytetracycline, with a detection limit of 0.50 ng/mL. The method was also successfully applied for the detection of oxytetracycline-spiked environmental water samples to demonstrate its practical usefulness.
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Affiliation(s)
- Hanbing Huang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin, 541004, China
| | - Jingjing Li
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin, 541004, China
| | - Siqi Pan
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin, 541004, China
| | - Haolin Wang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin, 541004, China
| | - Aihui Liang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin, 541004, China.
| | - Zhiliang Jiang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin, 541004, China.
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33
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Tadesse A, Belachew N, Hagos M, Basavaiah K. Synthesis of Fluorescent Nitrogen and Phosphorous Co-doped Carbon Quantum Dots for Sensing of Iron, Cell Imaging and Antioxidant Activities. J Fluoresc 2021; 31:763-774. [PMID: 33655457 DOI: 10.1007/s10895-021-02696-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 02/02/2021] [Indexed: 12/14/2022]
Abstract
Carbon quantum dots (CQD) as the result of their exceptional physical and chemical properties show tremendous potential in various field of applications like cell imaging and doping of CQDs with elements like nitrogen and phosphorous increase its fluorescence property. Herein, we have synthesized fluorescent nitrogen and phosphorous codoped carbon quantum dots (NPCQDs) via a one-pot hydrothermal method. Sesame oil, L-Aspartic acid, and phosphoric acid were used as carbon, nitrogen, and phosphorous sources, respectively. UV-Vis spectrophotometer, fluorescence spectrometer, Fourier transform infrared spectrometer (FTIR), X-ray diffraction spectrometer (XRD), field emission scanning microscopy (FESEM), and transmission electron microscopy (TEM) were employed to characterize the synthesized fluorescent NPCQDs. The as-synthesized NPCQDs with a particle size of 4.7 nm possess excellent water solubility, high fluorescence with high quantum yield (46%), high ionic stability, and resistance to photobleaching. MTT assay indicated the biocompatibility of NPCQDs and it was used for multicolor live-cell imaging. Besides, the NPCQDs show an effective probe of iron ions (Fe3+) in an aqueous solution with a high degree of sensitivity and selectivity. The DPPH assay showed its good antioxidant activity.
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Affiliation(s)
- Aschalew Tadesse
- Department of Applied Chemistry, Adama Science and Technology University, Adama, Ethiopia.
| | - Neway Belachew
- Department of Chemistry, Debre Berhan University, Debre Berhan, Ethiopia
| | - Mebrahtu Hagos
- Faculty of Natural and Computational Sciences, Woldia University, 400, Woldia, Ethiopia
| | - Keloth Basavaiah
- Department of Inorganic and Analytical Chemistry, Andhra University, Visakhapatnam, 530003, India
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34
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Rahman MM, Lee DJ, Jo A, Yun SH, Eun JB, Im MH, Shim JH, Abd El-Aty AM. Onsite/on-field analysis of pesticide and veterinary drug residues by a state-of-art technology: A review. J Sep Sci 2021; 44:2310-2327. [PMID: 33773036 DOI: 10.1002/jssc.202001105] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 03/12/2021] [Accepted: 03/13/2021] [Indexed: 11/08/2022]
Abstract
Pesticides and veterinary drugs are generally employed to control pests and insects in crop and livestock farming. However, remaining residues are considered potentially hazardous to human health and the environment. Therefore, regular monitoring is required for assessing and legislation of pesticides and veterinary drugs. Various approaches to determining residues in various agricultural and animal food products have been reported. Most analytical methods involve sample extraction, purification (cleanup), and detection. Traditional sample preparation is time-consuming labor-intensive, expensive, and requires a large amount of toxic organic solvent, along with high probability for the decomposition of a compound before the analysis. Thus, modern sample preparation techniques, such as the quick, easy, cheap, effective, rugged, and safe method, have been widely accepted in the scientific community for its versatile application; however, it still requires a laboratory setup for the extraction and purification processes, which also involves the utilization of a toxic solvent. Therefore, it is crucial to elucidate recent technologies that are simple, portable, green, quick, and cost-effective for onsite and infield residue detections. Several technologies, such as surface-enhanced Raman spectroscopy, quantum dots, biosensing, and miniaturized gas chromatography, are now available. Further, several onsite techniques, such as ion mobility-mass spectrometry, are now being upgraded; some of them, although unable to analyze field sample directly, can analyze a large number of compounds within very short time (such as time-of-flight and Orbitrap mass spectrometry). Thus, to stay updated with scientific advances and analyze organic contaminants effectively and safely, it is necessary to study all of the state-of-art technology.
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Affiliation(s)
- Md Musfiqur Rahman
- Natural Products Chemistry Laboratory, Chonnam National University, Gwangju, Republic of Korea
| | - Dong Ju Lee
- Natural Products Chemistry Laboratory, Chonnam National University, Gwangju, Republic of Korea
| | - Ara Jo
- Natural Products Chemistry Laboratory, Chonnam National University, Gwangju, Republic of Korea
| | - Seung Hee Yun
- Natural Products Chemistry Laboratory, Chonnam National University, Gwangju, Republic of Korea
| | - Jong-Bang Eun
- Department of Food Science and Technology and BK 21 plus Program, Graduate School of Chonnam National University, Gwangju, Republic of Korea
| | - Moo-Hyeog Im
- Department of Food Engineering, Daegu University, Gyeongbuk, Republic of Korea
| | - Jae-Han Shim
- Natural Products Chemistry Laboratory, Chonnam National University, Gwangju, Republic of Korea
| | - A M Abd El-Aty
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.,Department of Medical Pharmacology, Medical Faculty, Ataturk University, Erzurum, Turkey
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35
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Hu J, Luo J, Zhang M, Wu J, Zhang Y, Kong H, Qu H, Cheng G, Zhao Y. Protective Effects of Radix Sophorae Flavescentis Carbonisata-Based Carbon Dots Against Ethanol-Induced Acute Gastric Ulcer in Rats: Anti-Inflammatory and Antioxidant Activities. Int J Nanomedicine 2021; 16:2461-2475. [PMID: 33814910 PMCID: PMC8009542 DOI: 10.2147/ijn.s289515] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 03/16/2021] [Indexed: 12/24/2022] Open
Abstract
AIM To explore the effects of Radix Sophorae Flavescentis carbonisata-based carbon dots (RSFC-CDs) on an ethanol-induced acute gastric ulcer rat model. METHODS The structure, optical properties, functional groups and elemental composition of RSFC-CDs synthesized by one-step pyrolysis were characterized. The gastric protective effects of RSFC-CDs were evaluated and confirmed by applying a rat model of ethanol-induced acute gastric ulcers. The underlying mechanisms were investigated through the nuclear factor-kappa B (NF-κB) signalling pathway and oxidative stress. RESULTS RSFC-CDs with a diameter ranging from 2-3 nm mainly showed gastric protective effects by reducing the levels of NF-κB, tumour necrosis factor-α (TNF-α), interleukin (IL)-6, superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-Px), glutathione (GSH), malondialdehyde (MDA) and inducible nitric oxide synthase (iNOS) to inhibit ethanol-induced inflammation and oxidative stress. CONCLUSION RSFC-CDs have anti-inflammatory and anti-oxidative effects, making them promising for application in ethanol-induced gastric injury.
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Affiliation(s)
- Jie Hu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, People’s Republic of China
| | - Juan Luo
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, People’s Republic of China
| | - Meiling Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, People’s Republic of China
| | - Jiashu Wu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, People’s Republic of China
| | - Yue Zhang
- School of Life Science, Beijing University of Chinese Medicine, Beijing, 100029, People’s Republic of China
| | - Hui Kong
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, People’s Republic of China
| | - Huihua Qu
- Center of Scientific Experiment, Beijing University of Chinese Medicine, Beijing, 100029, People’s Republic of China
| | - Guoliang Cheng
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co., Ltd., Linyi, 276000, People’s Republic of China
| | - Yan Zhao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, People’s Republic of China
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