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Yemets A, Plokhovska S, Pushkarova N, Blume Y. Quantum Dot-Antibody Conjugates for Immunofluorescence Studies of Biomolecules and Subcellular Structures. J Fluoresc 2022; 32:1713-1723. [PMID: 35670918 DOI: 10.1007/s10895-022-02968-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 05/05/2022] [Indexed: 01/14/2023]
Abstract
Quantum dots, or nanoscale semiconductors, are one of the most important materials for various research and development purposes. Due to their advantageous photoluminescence and electronic properties, namely, their unique photostability, high brightness, narrow emission spectra from visible to near-infrared wavelengths, convey them significant advantages over widely used fluorochromes, including organic dyes, fluorescent probes. Quantum dots are a unique instrument for a wide range of immunoassays with antibodies. The paper provides an overview of the developed and already applied methods of quantum dot surface modification, quantum dots conjugation to different antibodies (non-covalent, direct covalent linkage or with the use of special adapter molecules), as well as practical examples of recent quantum dot-antibody applications in the immunofluorescence microscopy for cell and cell structure imaging, fluorescent assays for biomolecules detection and in diagnostics of various diseases. The review presents advantages of quantum dot-antibody conjugation technology over the existing methods of immunofluorescence studies and a forward look into its potential prospects in biological and biomedical research.
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Affiliation(s)
- Alla Yemets
- Institute of Food Biotechnology and Genomics, National Academy of Sciences of Ukraine, Osypovskogo str., 2a, 04123, Kyiv, Ukraine.
| | - Svitlana Plokhovska
- Institute of Food Biotechnology and Genomics, National Academy of Sciences of Ukraine, Osypovskogo str., 2a, 04123, Kyiv, Ukraine
| | - Nadia Pushkarova
- Institute of Food Biotechnology and Genomics, National Academy of Sciences of Ukraine, Osypovskogo str., 2a, 04123, Kyiv, Ukraine
| | - Yaroslav Blume
- Institute of Food Biotechnology and Genomics, National Academy of Sciences of Ukraine, Osypovskogo str., 2a, 04123, Kyiv, Ukraine
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2
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Crystallographic, Energy Gap, Photoluminescence and Photo-Catalytic Investigation of Cu Doped Cd0.9Zn0.1S Nanostructures by Co-precipitation Method. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-02058-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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3
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Patel V, Shah J, Gupta AK. Design and In-silico study of bioimaging fluorescence Graphene quantum dot-Bovine serum albumin complex synthesized by diimide-activated amidation. Comput Biol Chem 2021; 93:107543. [PMID: 34252797 DOI: 10.1016/j.compbiolchem.2021.107543] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/02/2021] [Accepted: 07/06/2021] [Indexed: 12/01/2022]
Abstract
Graphene quantum dot possesses advantageous characteristics like tunable fluorescence, nanometer size, low cytotoxicity, high biocompatibility enabling them as an ideal material for fluorescence bio-imaging. It exhibits a unique characteristic of DNA cleavage activity enhancer, gene/drug carrier, and anticancer targeting applications. In this article, we discussed the preparation of graphene quantum dot through the bottom-up method. Carbodiimide-activated amidation reactions were used for the functionalization of graphene quantum dot with Bovine Serum Albumin. Fluorescence spectroscopy data showed that the graphene quantum dot has size-dependent fluorescence emission. TEM and AFM studies showed that the size of graphene quantum dot was around 20 nm with narrow size distribution. Carbodiimide-activated amidation conjugation was successful in binding the protein onto graphene quantum dot and these conjugates were characterized by DLS, FTIR, fluorescence spectroscopy, and agarose gel electrophoresis. We also studied the structural-based in-silico molecular dynamic simulation by AutoDock, PyRx, and Discovery Studio Visualizer. Based on the virtual screening analysis and higher negative energy incorporation, it is observed that graphene quantum dot conjugated with bovine serum albumin quickly and formed is highly stable complex, which makes them a potential candidate for future applications in the field of bio-imaging, bio-sensing, gene/drug delivery, and tumor theragnostic.
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Affiliation(s)
- Vimal Patel
- Department of Pharmaceutics, Institute of Pharmacy, Nirma University, Ahmedabad, Gujarat, India
| | - Jigar Shah
- Department of Pharmaceutics, Institute of Pharmacy, Nirma University, Ahmedabad, Gujarat, India.
| | - Ajay Kumar Gupta
- Department of Research and Development, Ganpat University, Mehsana, Gujarat, India
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Anticancer and Antibacterial Activity of Cadmium Sulfide Nanoparticles byAspergillus niger. ADVANCES IN POLYMER TECHNOLOGY 2020. [DOI: 10.1155/2020/4909054] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Cadmium-tolerant (6 mM)Aspergillus niger(RCMB 002002) biomass was challenged with aqueous cadmium chloride (1 mM) followed by sodium sulfide (9 mM) at 37°C for 96 h under shaking conditions (200 rpm), resulting in the formation of highly stable polydispersed cadmium sulfide nanoparticles (CdSNPs). Scanning electron microscopy revealed the presence of spherical particles measuring approximately 5 nm. A light scattering detector (LSD) showed that 100% of the CSNPs measure from 2.7 to 7.5 nm. Structural analyses by both powder X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) confirmed the presence of cubic CdS nanoparticles (CdSNPs) capped with fungal proteins. These CdSNPs showed emission spectra with a broad fluorescence peak at 420 nm and UV absorption onset at 430 nm that shifted to 445 nm after three months of incubation. The CdSNPs showed antimicrobial activity againstE. coli,Pseudomonas vulgaris,Staphylococcus aureus, andBacillus subtilis, and no antimicrobial activity was detected againstCandida albicans. The biosynthesized CdSNPs have cytotoxic activity, with 50% inhibitory concentrations (IC50) of 190 μg mL-1against MCF7, 246 μg mL-1against PC3, and 149 μg mL-1against A549 cell lines.
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Nazari O, Gouran Orimi P, Chaichi MJ, Mohseni M. Synthesis and characterization of cadmium selenide quantum dots doped by europium and investigation of their chemiluminescence properties and antibacterial activities. LUMINESCENCE 2019; 34:394-401. [PMID: 30924259 DOI: 10.1002/bio.3631] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 03/02/2019] [Accepted: 03/04/2019] [Indexed: 11/08/2022]
Abstract
Nanoparticles of cadmium selenide (CdSe) doped with europium, were synthesized as stabilizing agents using thioglycolic acid ligand. This method is based on the enhancing effect of CdSe quantum dots (QDs) doped with europium on chemiluminescence (CL) emission. This emission was generated by mixing CdSe QDs with manganese (II), iron (II) and chrome (II) sulfates as catalysts in the presence of hydrogen peroxide (H2 O2 ). The structural characteristics and morphology of these nanoparticles were investigated by scanning electron microscopy, Fourier transform infrared spectroscopy, ultraviolet-visible absorption spectroscopy, X-ray pattern and dynamic light scattering methods. The CdSe QDs doped with europium were used as the sensitizer in a luminol-hydrogen peroxide CL system. The sensitized CdSe QDs were analyzed for antibacterial activity against Gram-positive or Gram-negative bacteria. The results showed that the CdSe QDs are effective against all the studied bacteria, effectiveness was especially higher for Bacillus subtilis.
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Affiliation(s)
- O Nazari
- Department of Inorganic Chemistry, University of Mazandaran, Babolsar, Iran
| | - P Gouran Orimi
- Department of Inorganic Chemistry, University of Mazandaran, Babolsar, Iran
| | - M J Chaichi
- Department of Inorganic Chemistry, University of Mazandaran, Babolsar, Iran
| | - M Mohseni
- Department of Molecular and Cell Biology, University of Mazandaran, Babolsar, Iran
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Sahoo SL, Liu CH, Kumari M, Wu WC, Wang CC. Biocompatible quantum dot-antibody conjugate for cell imaging, targeting and fluorometric immunoassay: crosslinking, characterization and applications. RSC Adv 2019; 9:32791-32803. [PMID: 35529742 PMCID: PMC9073096 DOI: 10.1039/c9ra07352c] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 10/01/2019] [Indexed: 11/21/2022] Open
Abstract
Quantum dots (QDs) are important fluorescent probes that offer great promise for bio-imaging research due to their superior optical properties. However, QDs for live cell imaging and the tracking of cells need more investigation to simplify processing procedures, improving labeling efficiency, and reducing chronic toxicity. In this study, QDs were functionalized with bovine serum albumin (BSA) via a chemical linker. Anti-human immunoglobulin antibodies were oxidized by sodium periodate to create reactive aldehyde groups for a spontaneous reaction with the amine groups of BSA-modified QDs. An antibody-labeled QD bioconjugate was characterized using agarose gel electrophoresis, dynamic light scattering, and zeta potential. Using fluorescence spectroscopy, we found that the fluorescence of QDs was retained after multiple conjugation steps. The cell-labeling function of the QD bioconjugate was confirmed using an image analyzer and confocal microscopy. The QD bioconjugate specifically targeted human immunoglobulin on the membrane surface of recombinant cells. In addition, the QD bioconjugate applied in fluorometric immunoassay was effective for the quantitative analysis of human immunoglobulin in an enzyme-linked immunosorbent assay. The developed QD bioconjugate may offer a promising platform to develop biocompatible tools to label cells and quantify antibodies in the immunoassay. A layer-by-layer covalent strategy is developed including the modification of QDs using BSA as a stabilizing agent and then anti-human immunoglobulin antibody as a targeting moiety.![]()
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Affiliation(s)
- Soubhagya Laxmi Sahoo
- Department of Chemical and Materials Engineering
- Chang Gung University
- Tao-Yuan 333
- Taiwan
| | - Chi-Hsien Liu
- Department of Chemical and Materials Engineering
- Chang Gung University
- Tao-Yuan 333
- Taiwan
- Research Center for Chinese Herbal Medicine
| | - Monika Kumari
- Department of Chemical and Materials Engineering
- Chang Gung University
- Tao-Yuan 333
- Taiwan
| | - Wei-Chi Wu
- Department of Ophthalmology
- Chang Gung Memorial Hospital
- Taoyuan
- Taiwan
- College of Medicine
| | - Chun-Chao Wang
- Department of Medical Science
- Institute of Molecular Medicine
- National Tsing Hua University
- Hsinchu
- Taiwan
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Zhang Y, Yan M, Wang S, Jiang J, Gao P, Zhang G, Dong C, Shuang S. Facile one-pot synthesis of Au(0)@Au(i)–NAC core–shell nanoclusters with orange-yellow luminescence for cancer cell imaging. RSC Adv 2016. [DOI: 10.1039/c5ra22813a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The core–shell AuNCs synthesized by a facile strategy using NAC as reducing-cum-protecting agent were successfully applied for cancer cell imaging.
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Affiliation(s)
- Yan Zhang
- School of Chemistry and Chemical Engineering
- Institute of Environmental Science
- Shanxi University
- Taiyuan 030006
- People's Republic of China
| | - Meifen Yan
- School of Chemistry and Chemical Engineering
- Institute of Environmental Science
- Shanxi University
- Taiyuan 030006
- People's Republic of China
| | - Songbai Wang
- School of Chemistry and Chemical Engineering
- Institute of Environmental Science
- Shanxi University
- Taiyuan 030006
- People's Republic of China
| | - Jingjing Jiang
- School of Chemistry and Chemical Engineering
- Institute of Environmental Science
- Shanxi University
- Taiyuan 030006
- People's Republic of China
| | - Pengfei Gao
- School of Chemistry and Chemical Engineering
- Institute of Environmental Science
- Shanxi University
- Taiyuan 030006
- People's Republic of China
| | - Guomei Zhang
- School of Chemistry and Chemical Engineering
- Institute of Environmental Science
- Shanxi University
- Taiyuan 030006
- People's Republic of China
| | - Chuan Dong
- School of Chemistry and Chemical Engineering
- Institute of Environmental Science
- Shanxi University
- Taiyuan 030006
- People's Republic of China
| | - Shaomin Shuang
- School of Chemistry and Chemical Engineering
- Institute of Environmental Science
- Shanxi University
- Taiyuan 030006
- People's Republic of China
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Azizi SN, Chaichi MJ, Shakeri P, Bekhradnia A. Quantum dots and ionic liquid-sensitized effect as an efficient and green catalyst for the sensitive determination of glucose. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 146:277-285. [PMID: 25819316 DOI: 10.1016/j.saa.2015.02.065] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Revised: 01/15/2015] [Accepted: 02/16/2015] [Indexed: 06/04/2023]
Abstract
A novel fluorescence (FL) method using water-soluble CdSe quantum dots (QDs) is proposed for the fluorometric determination of hydrogen peroxide and glucose. Water-soluble CdSe QDs were synthesized by using thioglycolic acid as stabilizer in aqueous solutions. The nanoparticles were structurally and optically characterized by X-ray powder diffraction (XRD), dynamic light scattering (DLS), Fourier transform infrared spectroscopy (FTIR), UV-Vis absorption spectroscopy, photoluminescence (PL) emission spectroscopy and transmission electron microscope (TEM). Ionic liquid-sensitized effect in aqueous solution was then investigated. In the presence of ionic liquid as catalyst, H2O2 was decomposed into radical that could quench the fluorescence of CdSe QDs more efficiently and rapidly. Then the oxidization of glucose by glucose oxidase was coupled with the fluorescence quenching of CdSe QDs by H2O2 producer with ionic liquid catalyst, which can be used to detect glucose. Therefore, a new FL analysis system was developed for the determination of glucose. Under the optimum conditions, there is a good linear relationship between the relative PL emission intensity and the concentration of glucose in the range of 5.0×10(-7)-1.0×10(-4) M of glucose with a correlation coefficient (R(2)) of 0.9973. The limit of detection of this system was found to be 1.0×10(-7) M. This method is not only simple, sensitive and low cost, but also reliable for practical applications.
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Affiliation(s)
- Seyed Naser Azizi
- Analytical Division, Faculty of Chemistry, University of Mazandaran, Babolsar 4741695447, Iran.
| | - Mohammad Javad Chaichi
- Analytical Division, Faculty of Chemistry, University of Mazandaran, Babolsar 4741695447, Iran
| | - Parmis Shakeri
- Analytical Division, Faculty of Chemistry, University of Mazandaran, Babolsar 4741695447, Iran
| | - Ahmadreza Bekhradnia
- Pharmaceutical Sciences Research Center, Department of Medicinal Chemistry, Mazandaran University of Medical Sciences, Sari, Iran
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Selim KMK, Xing ZC, Choi MJ, Chang Y, Guo H, Kang IK. Reduced cytotoxicity of insulin-immobilized CdS quantum dots using PEG as a spacer. NANOSCALE RESEARCH LETTERS 2011; 6:528. [PMID: 21943314 PMCID: PMC3228607 DOI: 10.1186/1556-276x-6-528] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Accepted: 09/23/2011] [Indexed: 05/28/2023]
Abstract
Cytotoxicity is a severe problem for cadmium sulfide nanoparticles (CSNPs) in biological systems. In this study, mercaptoacetic acid-coated CSNPs, typical semiconductor Q-dots, were synthesized in aqueous medium by the arrested precipitation method. Then, amino-terminated polyethylene glycol (PEG) was conjugated to the surface of CSNPs (PCSNPs) in order to introduce amino groups to the surface. Finally, insulin was immobilized on the surface of PCSNPs (ICSNPs) to reduce cytotoxicity as well as to enhance cell compatibility. The presence of insulin on the surface of ICSNPs was confirmed by observing infrared absorptions of amide I and II. The mean diameter of ICSNPs as determined by dynamic light scattering was about 38 nm. Human fibroblasts were cultured in the absence and presence of cadmium sulfide nanoparticles to evaluate cytotoxicity and cell compatibility. The results showed that the cytotoxicity of insulin-immobilized cadmium sulfide nanoparticles was significantly suppressed by usage of PEG as a spacer. In addition, cell proliferation was highly facilitated by the addition of ICSNPs. The ICSNPs used in this study will be potentials to be used in bio-imaging applications.
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Affiliation(s)
- KM Kamruzzaman Selim
- Department of Polymer Science and Engineering, Kyungpook National University, Daegu 702-701, South Korea
| | - Zhi-Cai Xing
- Department of Polymer Science and Engineering, Kyungpook National University, Daegu 702-701, South Korea
| | - Moon-Jeong Choi
- Medical and Biological Engineering, Kyungpook National University, Daegu 702-701, South Korea
| | - Yongmin Chang
- Department of Diagnostic Radiology, Kyungpook National University, Dongin-dong, Daegu 700-422, South Korea
| | - Haiqing Guo
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Inn-Kyu Kang
- Department of Polymer Science and Engineering, Kyungpook National University, Daegu 702-701, South Korea
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Chen ML, Liu JW, Hu B, Chen ML, Wang JH. Conjugation of quantum dots with graphene for fluorescence imaging of live cells. Analyst 2011; 136:4277-83. [DOI: 10.1039/c1an15474e] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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