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Ribeiro JF, Melo JR, Santos CDL, Chaves CR, Cabral Filho PE, Pereira G, Santos BS, Pereira GA, Rosa DS, Ribeiro RT, Fontes A. Sensitive Zika Biomarker Detection Assisted by Quantum Dot-Modified Electrochemical Immunosensing Platform. Colloids Surf B Biointerfaces 2022; 221:112984. [DOI: 10.1016/j.colsurfb.2022.112984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 09/04/2022] [Accepted: 10/27/2022] [Indexed: 11/06/2022]
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Jiang X, Li BQ, Qu X, Yang H, Shao J, Zhang H. Multilayered Dual Functional SiO 2@Au@SiO 2@QD Nanoparticles for Simultaneous Intracellular Heating and Temperature Measurement. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:6367-6378. [PMID: 30889952 DOI: 10.1021/acs.langmuir.8b04263] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This paper discusses synthesis and application of dual functional SiO2@Au@SiO2@QD composite nanoparticles for integrated intracellular heating with temperature motoring. The particles are of multilayered concentric structure, consisting of Au nanoshells covered with quantum dots, with the former for infrared heating through localized surface plasma resonance while the later for temperature monitoring. The key to integrate plasmonic-heating/thermal-monitoring on a single composite nanoparticle is to ensure that the quantum dots be separated at a certain distance away from the Au shell surface in order to ensure a detectable quantum yield. Direct attachment of the quantum dots onto the Au shell would render the quantum dots practically functionless for temperature monitoring. To integrate quantum dots into Au nanoshells, a quantum quenching barrier of SiO2 was created by modifying a Stöber-like process. Materials, optical and thermal characterization was made of these composite nanoparticles. Cellular uptake of the nanoparticles was discussed. Experiments were performed on simultaneous in vitro heating and temperature monitoring in a cell internalized with the dual-functional SiO2@Au@SiO2@QD composite nanoparticles.
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Affiliation(s)
- Xinbing Jiang
- State Key Laboratory for Manufacturing System Engineering , Xi'an Jiaotong University , Xi'an , Shaanxi 710049 , P.R. China
| | - Ben Q Li
- Department of Mechanical Engineering , University of Michigan , Dearborn , Michigan 48128 , United States
| | - Xiaoli Qu
- State Key Laboratory for Manufacturing System Engineering , Xi'an Jiaotong University , Xi'an , Shaanxi 710049 , P.R. China
| | - Huan Yang
- State Key Laboratory for Manufacturing System Engineering , Xi'an Jiaotong University , Xi'an , Shaanxi 710049 , P.R. China
| | - Jinyou Shao
- State Key Laboratory for Manufacturing System Engineering , Xi'an Jiaotong University , Xi'an , Shaanxi 710049 , P.R. China
| | - Hongmei Zhang
- Department of Oncology, Xijing Hosptial , Air Force Military Medical University , Xi'an , Shaanxi 710032 , China
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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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Kini S, Ganiga V, Kulkarni SD, Chidangil S, George SD. Sensitive detection of mercury using the fluorescence resonance energy transfer between CdTe/CdS quantum dots and Rhodamine 6G. JOURNAL OF NANOPARTICLE RESEARCH 2018; 20:232. [DOI: 10.1007/s11051-018-4320-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 08/09/2018] [Indexed: 06/24/2023]
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Cancer cell-selective, clathrin-mediated endocytosis of aptamer decorated nanoparticles. Oncotarget 2018; 9:20993-21006. [PMID: 29765515 PMCID: PMC5940367 DOI: 10.18632/oncotarget.24772] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 02/26/2018] [Indexed: 01/01/2023] Open
Abstract
Lung cancer is the leading cause of cancer mortality worldwide, resulting in 88% deaths of all diagnosed patients. Hence, novel therapeutic modalities are urgently needed. Single-stranded oligonucleotide-based aptamers (APTs) are excellent ligands for tumor cell targeting. However, the molecular mechanisms underlying their internalization into living cells have been poorly studied. Towards the application of APTs for active drug targeting to cancer cells, we herein studied the mechanism underlying S15-APT internalization into human non-small cell lung cancer A549 cells. We thus delineated the mode of entry of a model nanomedical system based on quantum dots (QDs) decorated with S15-APTs as a selective targeting moiety for uptake by A549 cells. These APT-decorated QDs displayed selective binding to, and internalization by target A549 cells, but not by normal human bronchial epithelial BEAS2B, cervical carcinoma (HeLa) and colon adenocarcinoma CaCo-2 cells, hence demonstrating high specificity. Flow cytometric analysis revealed a remarkably low dissociation constant of S15-APTs-decorated QDs to A549 cells (Kd = 13.1 ± 1.6 nM). Through the systematic application of a series of established inhibitors of known mechanisms of endocytosis, we show that the uptake of S15-APTs proceeds via a classical clathrin-dependent receptor-mediated endocytosis. This cancer cell-selective mode of entry could possibly be used in the future to evade plasma membrane-localized multidrug resistance efflux pumps, thereby overcoming an important mechanism of cancer multidrug resistance.
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Rakovich A, Rakovich T. Semiconductorversusgraphene quantum dots as fluorescent probes for cancer diagnosis and therapy applications. J Mater Chem B 2018; 6:2690-2712. [DOI: 10.1039/c8tb00153g] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
This review provides a comparison of optical, chemical and biocompatibility properties of graphene and semiconductor quantum dots as fluorescent probes.
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Affiliation(s)
- Aliaksandra Rakovich
- Photonics and Nanotechnology Group
- Department of Physics
- King's College London
- London
- UK
| | - Tatsiana Rakovich
- Department of Molecular Rheumatology
- Trinity Biomedical Sciences Institute
- Dublin 2
- Ireland
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Urmann K, Modrejewski J, Scheper T, Walter JG. Aptamer-modified nanomaterials: principles and applications. ACTA ACUST UNITED AC 2017. [DOI: 10.1515/bnm-2016-0012] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
AbstractAptamers are promising alternative binders that can substitute antibodies in various applications. Due to the advantages of aptamers, namely their high affinity, specificity and stability, along with the benefits originating from the chemical synthesis of aptamers, they have attracted attention in various applications including their use on nanostructured material. This necessitates the immobilization of aptamers on a solid support. Since aptamer immobilization may interfere with its binding properties, the immobilization of aptamers has to be investigated and optimized. Within this review, we give general insights into the principles and factors controlling the binding affinity of immobilized aptamers. Specific features of aptamer immobilization on nanostructured surfaces and nanoparticles are highlighted and a brief overview of applications of aptamer-modified nanostructured materials is given.
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Jiang X, Li BQ, Qu X, Yang H, Liu H. Thermal sensing with CdTe/CdS/ZnS quantum dots in human umbilical vein endothelial cells. J Mater Chem B 2017; 5:8983-8990. [DOI: 10.1039/c7tb02016c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
An experimental methodology is presented to measure the temperature variation in cells with the usage of CdTe/CdS/ZnS core/shell/shell quantum dots as nanothermometers.
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Affiliation(s)
- Xinbing Jiang
- Micro- and Nano-manufacturing Research Center
- State Key Laboratory for Manufacturing Systems Engineering
- Xi’an Jiaotong University
- Xi’an 710049
- P. R. China
| | - Ben Q. Li
- Micro- and Nano-manufacturing Research Center
- State Key Laboratory for Manufacturing Systems Engineering
- Xi’an Jiaotong University
- Xi’an 710049
- P. R. China
| | - Xiaoli Qu
- Micro- and Nano-manufacturing Research Center
- State Key Laboratory for Manufacturing Systems Engineering
- Xi’an Jiaotong University
- Xi’an 710049
- P. R. China
| | - Huan Yang
- Micro- and Nano-manufacturing Research Center
- State Key Laboratory for Manufacturing Systems Engineering
- Xi’an Jiaotong University
- Xi’an 710049
- P. R. China
| | - Hongzhong Liu
- Micro- and Nano-manufacturing Research Center
- State Key Laboratory for Manufacturing Systems Engineering
- Xi’an Jiaotong University
- Xi’an 710049
- P. R. China
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Friehs E, AlSalka Y, Jonczyk R, Lavrentieva A, Jochums A, Walter JG, Stahl F, Scheper T, Bahnemann D. Toxicity, phototoxicity and biocidal activity of nanoparticles employed in photocatalysis. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2016. [DOI: 10.1016/j.jphotochemrev.2016.09.001] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Modrejewski J, Walter JG, Kretschmer I, Kemal E, Green M, Belhadj H, Blume C, Scheper T. Aptamer-modified polymer nanoparticles for targeted drug delivery. ACTA ACUST UNITED AC 2016. [DOI: 10.1515/bnm-2015-0027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
AbstractThe purpose of this study was to develop a model system for targeted drug delivery. This system should enable targeted drug release at a certain tissue in the body. In conventional drug delivery systems, drugs are often delivered unspecifically resulting in unwarranted adverse effects. To circumvent this problem, there is an increasing demand for the development of intelligent drug delivery systems allowing a tissue-specific mode of delivery. Within this study, nanoparticles consisting of two biocompatible polymers are used. Because of their small size, nanoparticles are well-suited for effective drug delivery. The small size affects their movement through cell and tissue barriers. Their cellular uptake is easier when compared to larger drug delivery systems. Paclitaxel was encapsulated into the nanoparticles as a model drug, and to achieve specific targeting an aptamer directed against lung cancer cells was coupled to the nanoparticles surface. Nanoparticles were characterized by dynamic light scattering (DLS), transmission electron microscopy (TEM), fourier transform infrared spectroscopy (FTIR), and nanotracking analysis (NTA). Also their surface charge was characterized from ζ-potential measurements. Their preparation was optimized and subsequently specificity of drug-loaded and aptamer-functionalized nanoparticles was investigated using lung cancer cells.
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Ulusoy M, Lavrentieva A, Walter JG, Sambale F, Green M, Stahl F, Scheper T. Evaluation of CdTe/CdS/ZnS core/shell/shell quantum dot toxicity on three-dimensional spheroid cultures. Toxicol Res (Camb) 2016; 5:126-135. [PMID: 30090332 PMCID: PMC6060716 DOI: 10.1039/c5tx00236b] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 07/30/2015] [Indexed: 11/21/2022] Open
Abstract
In this work, three-dimensional (3D) spheroid cultures of human adipose-derived mesenchymal stem cells (hAD-MSCs), with tissue-mimetic morphology through well developed cell-cell and cell-matrix interactions and distinct diffusion/transport characteristics, were assessed for dose-dependent toxic effects of red-emitting CdTe/CdS/ZnS quantum dots (Qdots). Morphological investigations and time-resolved microscopy analysis in addition to cell metabolic activity studies revealed that 3D spheroid cultures are more resistant to Qdot-induced cytotoxicity in comparison to conventional 2D cultures. The obtained results suggest the presence of two distinct cell populations in 2D cultures with different sensitivity to Qdots, however that effect wasn't observed in 3D spheroids. Our investigations were aimed to improve the prediction of nanotoxicity of Qdot on tissue-level and provide the essential screening steps prior to any in vivo application. Moreover, penetration ability of highly fluorescent Qdots to densely-packed spheroids will fortify the biological application of developed Qdots in tissue-like structures.
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Affiliation(s)
- Mehriban Ulusoy
- Gottfried Wilhelm Leibniz University of Hannover , Institute of Technical Chemistry , 30167 Hanover , Germany . ; Tel: +49 (0)511 762-2968
| | - Antonina Lavrentieva
- Gottfried Wilhelm Leibniz University of Hannover , Institute of Technical Chemistry , 30167 Hanover , Germany . ; Tel: +49 (0)511 762-2968
| | - Johanna-Gabriela Walter
- Gottfried Wilhelm Leibniz University of Hannover , Institute of Technical Chemistry , 30167 Hanover , Germany . ; Tel: +49 (0)511 762-2968
| | - Franziska Sambale
- Gottfried Wilhelm Leibniz University of Hannover , Institute of Technical Chemistry , 30167 Hanover , Germany . ; Tel: +49 (0)511 762-2968
| | - Mark Green
- King's College London , Department of Physics , The Strand , WC2R LS London , UK . ; Tel: +44 (0)2078 48212
| | - Frank Stahl
- Gottfried Wilhelm Leibniz University of Hannover , Institute of Technical Chemistry , 30167 Hanover , Germany . ; Tel: +49 (0)511 762-2968
| | - Thomas Scheper
- Gottfried Wilhelm Leibniz University of Hannover , Institute of Technical Chemistry , 30167 Hanover , Germany . ; Tel: +49 (0)511 762-2968
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Ulusoy M, Jonczyk R, Walter JG, Springer S, Lavrentieva A, Stahl F, Green M, Scheper T. Aqueous Synthesis of PEGylated Quantum Dots with Increased Colloidal Stability and Reduced Cytotoxicity. Bioconjug Chem 2015; 27:414-26. [DOI: 10.1021/acs.bioconjchem.5b00491] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | | | | | | | | | - Mark Green
- Department
of Physics, King’s College London, The Strand, WC2R 2LS London, U.K
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