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Ni X, Lu Y, Li M, Liu Y, Zhang M, Sun F, Dong S, Zhao L. Application of Se-Met to CdTe QDs significantly reduces toxicity by modulating redox balance and inhibiting apoptosis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 267:115614. [PMID: 37890249 DOI: 10.1016/j.ecoenv.2023.115614] [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: 08/11/2023] [Revised: 10/10/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023]
Abstract
Cadmium tellurium quantum dots (CdTe QDs) as one of the most widely used QDs have been reported the toxicity and biosafety in recent years, little work has been done to reduce their toxicity however. Based on the mechanisms of toxicity of CdTe QDs on liver target organs such as oxidative stress and apoptosis previously reported by other researchers, we investigated the mechanism of action of trace element selenium (Se) to mitigate the hepatotoxicity of CdTe QDs. The experimental results showed that Se-Met at 40-140 μg L-1 could enhance the function of intracellular antioxidant defense system and the molecular structure of related antioxidant enzymes by reduce the production of ROS by 45%, protecting the activity of antioxidants and up-regulating the expression of selenoproteins with antioxidant functions, Gpx1 increase 225% and Gpx4 upregulated 47%. In addition, Se-Met could alleviate CdTe QDs-induced apoptosis by regulating two apoptosis-inducing factors, as intracellular caspase 3/9 expression levels were reduced by 70% and 87%, decreased Ca2+ concentration, and increased mitochondrial membrane potential measurements. Overall, this study indicates that Se-Met has a significant protective effect on the hepatotoxicity of CdTe QDs. Se-Met can be applied to the preparation of CdTe QDs to inhibit its toxicity and break the application limitation.
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Affiliation(s)
- Xinyu Ni
- College of Life Science, Institute of Life Science and Green Development, Hebei University, Baoding, Hebei 071002, PR China
| | - Yudie Lu
- College of Life Science, Institute of Life Science and Green Development, Hebei University, Baoding, Hebei 071002, PR China
| | - Meiyu Li
- College of Life Science, Institute of Life Science and Green Development, Hebei University, Baoding, Hebei 071002, PR China
| | - Yue Liu
- College of Life Science, Institute of Life Science and Green Development, Hebei University, Baoding, Hebei 071002, PR China
| | - Miao Zhang
- College of Chemistry & Environmental Science, Hebei University, Baoding, Hebei 071002, PR China
| | - Fuqiang Sun
- Physical and Chemical Laboratory, Baoding Center for Disease Control and Prevention, Baoding, Hebei 071000, PR China
| | - Sijun Dong
- College of Life Science, Institute of Life Science and Green Development, Hebei University, Baoding, Hebei 071002, PR China.
| | - Lining Zhao
- College of Life Science, Institute of Life Science and Green Development, Hebei University, Baoding, Hebei 071002, PR China.
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Ghasempour A, Dehghan H, Ataee M, Chen B, Zhao Z, Sedighi M, Guo X, Shahbazi MA. Cadmium Sulfide Nanoparticles: Preparation, Characterization, and Biomedical Applications. Molecules 2023; 28:molecules28093857. [PMID: 37175267 PMCID: PMC10179838 DOI: 10.3390/molecules28093857] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/26/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
Cadmium sulfide nanoparticles (CdS NPs) have been employed in various fields of nanobiotechnology due to their proven biomedical properties. They are unique in their properties due to their size and shape, and they are popular in the area of biosensors, bioimaging, and antibacterial and anticancer applications. Most CdS NPs are generally synthesized through chemical, physical, or biological methods. Among these methods, biogenic synthesis has attracted more attention due to its high efficiency, environmental friendliness, and biocompatibility features. The green approach was found to be superior to other methods in terms of maintaining the structural characteristics needed for optimal biomedical applications. The size and coating components of CdS NPs play a crucial role in their biomedical activities, such as anticancer, antibacterial, bioimaging, and biosensing applications. CdS NPs have gained significant interest in bioimaging due to their desirable properties, including good dispersion, cell integrity preservation, and efficient light scattering. Despite these, further studies are necessary, particularly in vivo studies to reduce NPs' toxicity. This review discusses the different methods of synthesis, how CdS NPs are characterized, and their applications in the biomedical field.
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Affiliation(s)
- Alireza Ghasempour
- Student Research Committee, Birjand University of Medical Sciences, Birjand 9717853076, Iran
| | - Hamideh Dehghan
- Student Research Committee, Birjand University of Medical Sciences, Birjand 9717853076, Iran
| | - Mehrnaz Ataee
- Student Research Committee, Birjand University of Medical Sciences, Birjand 9717853076, Iran
| | - Bozhi Chen
- Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zeqiang Zhao
- Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Mahsa Sedighi
- Department of Pharmaceutics and Nanotechnology, School of Pharmacy, Birjand University of Medical Sciences, Birjand 9717853076, Iran
- Cellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand 9717853076, Iran
| | - Xindong Guo
- Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Mohammad-Ali Shahbazi
- Department of Biomedical Engineering, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
- W.J. Kolff Institute for Biomedical Engineering and Materials Science, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
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Shen Y, Nie C, Wei Y, Zheng Z, Xu ZL, Xiang P. FRET-based innovative assays for precise detection of the residual heavy metals in food and agriculture-related matrices. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Molaei M, Farahmandzadeh F, Hemmati R. Mercury (Hg 2+) Detection in Aqueous Media, Photocatalyst, and Antibacterial Applications of CdTe/ZnS Quantum Dots. J Fluoresc 2022; 32:2129-2137. [PMID: 35947332 DOI: 10.1007/s10895-022-03013-1] [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: 07/14/2022] [Accepted: 08/04/2022] [Indexed: 11/29/2022]
Abstract
In the present work, CdTe/ZnS high luminescence quantum dots (QDs) were synthesized by a facile, fast, one-pot, and room temperature photochemical method. Synthesized QDs were characterized by different structural and optical analyses such as X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), Fourier transform-infrared spectroscopy (FT-IR), Raman, photoluminescence (PL) and UV-visible (UV-vis) spectroscopies. The results confirmed the successful growth of the ZnS shell and formation of CdTe/ZnS core/shell structure. CdTe/ZnS prepared QDs indicated a PL quantum yield of about 51%. These high luminescence QDs were used for detection of Hg2+ ions in aqueous media, as catalyst for photodegradation of different organic dyes, and as antibacterial material for the inhibition of bacterial growth. PL intensity of the CdTe/ZnS QDs was completely quenched after addition of 1 m molar Hg2+in to the media. Photocatalyst activity of CdTe/ZnS QDs was studied by rhodamine b, methylene blue, and methylene orange as organic dyes under both the sun and UV illuminations, and results showed that CdTe/ZnS QDs had the best photocatalyst activity for methylene blue degradation under UV irradiation and radical scavenger results indicated that electrons have a main role in photodegradation of methylene blue dye by CdTe/ZnS QDs under UV illumination. Antibacterial effects of CdTe/ZnS QDs evaluated by Minimum Inhibitory Concentration (MIC), and Minimum Bactericidal Concentration (MBC) methods against two strains of bacteria. The results of the antibacterial test showed that CdTe/ZnS could inhibit bacterial growth in Bacillus cereus (Gram-positive) and Escherichia coli (Gram-negative G) bacteria.
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Affiliation(s)
- Mehdi Molaei
- Department of Physics, Faculty of Science, Vali-E-Asr University, Rafsanjan, Iran.
| | | | - Rohullah Hemmati
- Department of Biology, Faculty of Basic Sciences, Shahrekord University, Shahrekord, Iran
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Paithankar JG, Kushalan S, S N, Hegde S, Kini S, Sharma A. Systematic toxicity assessment of CdTe quantum dots in Drosophila melanogaster. CHEMOSPHERE 2022; 295:133836. [PMID: 35120950 DOI: 10.1016/j.chemosphere.2022.133836] [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: 10/04/2021] [Revised: 01/31/2022] [Accepted: 01/31/2022] [Indexed: 06/14/2023]
Abstract
The risk assessment of cadmium (Cd)-based quantum dots (QDs) used for biomedical nanotechnology applications has stern toxicity concerns. Despite cytotoxicity studies of cadmium telluride (CdTe) QDs, the systematic in vivo study focusing on its organismal effects are more relevant to public health. Therefore, the present study aims to investigate the effect of chemically synthesized 3-mercapto propionic acid-functionalized CdTe QDs on organisms' survival, development, reproduction, and behaviour using Drosophila melanogaster as a model. The sub-cellular impact on the larval gut was also evaluated. First/third instar larvae or the adult Drosophila were exposed orally to green fluorescence emitting CdTe QDs (0.2-100 μM), and organisms' longevity, emergence, reproductive performance, locomotion, and reactive oxygen species (ROS), and cell death were assessed. Uptake of semiconductor CdTe QDs was observed as green fluorescence in the gut. A significant decline in percentage survivability up to 80% was evident at high CdTe QDs concentrations (25 and 100 μM). The developmental toxicity was marked by delayed and reduced fly emergence after CdTe exposure. The teratogenic effect was evident with significant wing deformities at 25 and 100 μM concentrations. However, at the reproductive level, adult flies' fecundity, fertility, and hatchability were highly affected even at low concentrations (1 μM). Surprisingly, the climbing ability of Drosophila was unaffected at any of the used CdTe QDs concentrations. In addition to organismal toxicity, the ROS level and cell death were elevated in gut cells, confirming the sub-cellular toxicity of CdTe QDs. Furthermore, we observed a significant rescue in CdTe QDs-associated developmental, reproductive, and survival adversities when organisms were co-exposed with N-acetyl-cysteine (NAC, an antioxidant) and CdTe QDs. Overall, our findings indicate that the environmental release of aqueously dispersible CdTe QDs raises a long-lasting health concern on the development, reproduction, and survivability of an organism.
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Affiliation(s)
- Jagdish Gopal Paithankar
- Nitte (Deemed to Be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Environmental Health and Toxicology, Kotekar-Beeri Road, Deralakatte, Mangaluru, 575018, India
| | - Sharanya Kushalan
- Nitte (Deemed to Be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Bioresource and Biotechnology, Kotekar-Beeri Road, Deralakatte, Mangaluru, 575018, India
| | - Nijil S
- Nitte (Deemed to Be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Nanobiotechnology, Kotekar-Beeri Road, Deralakatte, Mangaluru, 575018, India
| | - Smitha Hegde
- Nitte (Deemed to Be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Bioresource and Biotechnology, Kotekar-Beeri Road, Deralakatte, Mangaluru, 575018, India
| | - Sudarshan Kini
- Nitte (Deemed to Be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Nanobiotechnology, Kotekar-Beeri Road, Deralakatte, Mangaluru, 575018, India.
| | - Anurag Sharma
- Nitte (Deemed to Be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Environmental Health and Toxicology, Kotekar-Beeri Road, Deralakatte, Mangaluru, 575018, India.
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Li W, Liu D, Dong D, You T. Microwave-assisted synthesis of fluorescent silicon quantum dots for ratiometric sensing of Hg (II) based on the regulation of energy transfer. Talanta 2021; 226:122093. [PMID: 33676650 DOI: 10.1016/j.talanta.2021.122093] [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: 09/25/2020] [Revised: 12/31/2020] [Accepted: 01/05/2021] [Indexed: 10/22/2022]
Abstract
The rapid and sensitive detection of Hg2+ is highly required to protect the environmental safety and human healthy. In the present work, a ratiometric fluorescent sensing platform, consisting of silicon quantum dots (SiQDs), Rox-labelled DNA (Rox-DNA), and Exonuclease III (Exo III), is developed for the accurate detection of Hg2+. As for fluorescent probe, we report the first use of glutathione as reduction reagent for the microwave synthesis of SiQDs, achieving the facile (using a house-hold microwave oven) and rapid (within 8 min) synthesis. Such SiQDs show pH-independent spectra and reversible fluorescent behavior with temperature. Moreover, experimental results revealed that the electrostatic interaction-induced aggregation of Rox-DNA and SiQDs facilitated the occurring of energy transfer (ET). And detection principle based on the regulation of ET between Rox and SiQDs with Exo III was designed for analysis. ET effect resulted in the fluorescent fading of Rox while that of SiQDs kept stable. For analysis, the addition of Hg2+ led to the formation of double-stranded Rox-DNA via T-Hg2+-T. Exo III would cut these double-stranded DNA to release Rox and Hg2+, thereby impeding the ET effect and recovering the fluorescent of Rox. Such SiQDs/Rox-DNA/Exo III ratiometric fluorescent sensing platform exhibited a linear response concentration range of 0.02 nM-10 nM with a detection limit of 0.01 nM. It was successfully used to analyze the water and soil samples. The reliability was validated by ICP-MS. Our work should promote the practical application of ratiometric fluorescent assay.
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Affiliation(s)
- Wenjia Li
- Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Dong Liu
- Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Daming Dong
- National Engineering Research Center of Intelligent Equipment for Agriculture, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Tianyan You
- Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, China.
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Kini S, Badekila AK, Barh D, Sharma A. Cellular and Organismal Toxicity of Nanoparticles and Its Associated Health Concerns. Nanobiomedicine (Rij) 2020. [DOI: 10.1007/978-981-32-9898-9_21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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Kini S, Kulkarni SD, Ganiga V, T.K. N, Chidangil S. Dual functionalized, stable and water dispersible CdTe quantum dots: Facile, one-pot aqueous synthesis, optical tuning and energy transfer applications. MATERIALS RESEARCH BULLETIN 2019; 110:57-66. [DOI: 10.1016/j.materresbull.2018.10.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/24/2023]
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