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Nguyen TN, Tran QH, Terki F, Charnay C, Dumail X, Reibel C, Cazals G, Valette G, Jay-Allemand C, Bidel LPR. Aggregation of magnetic nanoparticles functionalized with trans-resveratrol in aqueous solution. DISCOVER NANO 2023; 18:64. [PMID: 37382715 PMCID: PMC10409977 DOI: 10.1186/s11671-023-03805-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 02/16/2023] [Indexed: 06/30/2023]
Abstract
In the framework of a protein-ligand-fishing strategy to identify proteins that bind to trans-resveratrol, a natural phenolic compound with pharmacological benefits, we have developed magnetic nanoparticles covalently linked to trans-resveratrol through three different derivatives and examined their aggregation behavior in aqueous solution. The monodispersed magnetic core (18 nm diameter) with its mesoporous silica shell (93 nm diameter) exhibited a notable superparamagnetic behavior useful for magnetic bioseparation. The hydrodynamic diameter, deduced from dynamic light scattering analysis, of the nanoparticle increased from 100 to 800 nm when the aqueous buffer changed from pH 10.0-3.0. A size polydispersion occurred from pH 7.0-3.0. In parallel, the value of the extinction cross section increased according to a negative power law of the UV wavelength. This was mainly due to light scattering by mesoporous silica, whereas the absorbance cross section remained very low in the 230-400 nm domain. The three types of resveratrol-grafted magnetic nanoparticles exhibited similar scattering properties, but their absorbance spectrum was consistent with the presence of trans-resveratrol. Their functionalization increased their negative zeta potential when pH increased from 3.0 to 10.0. The mesoporous nanoparticles were monodispersed in alkaline conditions, where their anionic surface strongly repulsed each other but aggregated progressively under van der Waals forces and hydrogen bonding when negative zeta potential decreased. The characterized results of nanoparticle behavior in aqueous solution provide critical insight for further study of nanoparticles with proteins in biological environment.
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Affiliation(s)
- Thi-Nga Nguyen
- UMR IATE, Institut Agro, INRAE, University of Montpellier, 34060, Montpellier, France
- PhyMedExp UMR CNRS 9214 - Inserm U1046, 34295, Montpellier Cedex 05, France
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, 100000, Vietnam
| | - Quang-Hung Tran
- PhyMedExp UMR CNRS 9214 - Inserm U1046, 34295, Montpellier Cedex 05, France
- eV-Technologies, 2 Esplanade Anton Philips, Bâtiment 5, 14460, Colombelles, France
| | - Ferial Terki
- PhyMedExp UMR CNRS 9214 - Inserm U1046, 34295, Montpellier Cedex 05, France.
| | - Clarence Charnay
- Institut Charles Gerhardt UMR 5253 CNRS-UM, Université de Montpellier, 34095, Montpellier, France
| | - Xavier Dumail
- Institut Charles Gerhardt UMR 5253 CNRS-UM, Université de Montpellier, 34095, Montpellier, France
| | - Corine Reibel
- Institut Charles Gerhardt UMR 5253 CNRS-UM, Université de Montpellier, 34095, Montpellier, France
| | - Guillaume Cazals
- IBMM UMR5247, CNRS, ENSCM, Université de Montpellier, Place Eugène Bataillon, 34095, Montpellier Cedex 5, France
| | - Gilles Valette
- IBMM UMR5247, CNRS, ENSCM, Université de Montpellier, Place Eugène Bataillon, 34095, Montpellier Cedex 5, France
| | | | - Luc P R Bidel
- UMR IATE, Institut Agro, INRAE, University of Montpellier, 34060, Montpellier, France.
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Keattanong P, Wasukan N, Kuno M, Srisung S. Synthesis, structural characterization, computational studies and stability evaluations of metal ions and ZnONPs complexes with dimercaptosuccinic acid. Heliyon 2021; 7:e05962. [PMID: 33553730 PMCID: PMC7851782 DOI: 10.1016/j.heliyon.2021.e05962] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/12/2020] [Accepted: 01/08/2021] [Indexed: 11/18/2022] Open
Abstract
Meso-2,3-dimercaptosuccinic acid (DMSA) is one of the efficient chelating reagents for treating the toxicity of several heavy metals. Currently, nanomaterial have been applied to various parts including zinc Oxide nanoparticles (ZnONPs). ZnONPs have several properties and are used as many applications. An increasing the amount of ZnONPs in commercial products causes risks related to free radicals or reactive oxygen species (ROS) in the body, leading to oxidative stress and eventually to the cancer process. In the present work, we mainly focused on the study of DMSA complexes in term of metal ions and nanoparticles. The synthesis of DMSA-ZnONPs by the co-precipitation method were determined, followed by Scanning Electron Microscope, Fourier Transform Infrared Spectroscopy and UV-Vis spectrophotometry confirming successful synthesis process. The stability study of the DMSA complexes with metal ions and ZnONPs were determined and evaluated the stability constant (K), with the Benesi- Hildebrand equation. All complexes with DMSA were formed at a 1:2 ratio by the dithiol group and the carboxyl group with different stability constants. Therefore, these results can help of an understanding of the interaction and its behavior between DMSA with heavy metal ion and ZnONPs. In addition, the stable structure of DMSA and metal ion complexes were predicted using the B3LYP and the 6-31G (d,p) basis set which the most stable structure of meso-DMSA was 2R,3S conformation and the metal ions and DMSA complexes was complex 2a with the binding energy of -1553.46 kcal mol-1.
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Affiliation(s)
- Poonyawee Keattanong
- Department of Chemistry, Faculty of Science, Srinakharinwirot University, Sukhumwit 23, Wattana District, Bangkok, 10110, Thailand
| | - Nootcharin Wasukan
- National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Khlong Luang, Pathum Thani, 12120, Thailand
| | - Mayuso Kuno
- Department of Chemistry, Faculty of Science, Srinakharinwirot University, Sukhumwit 23, Wattana District, Bangkok, 10110, Thailand
| | - Sujittra Srisung
- Department of Chemistry, Faculty of Science, Srinakharinwirot University, Sukhumwit 23, Wattana District, Bangkok, 10110, Thailand
- Corresponding author.
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3
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Ribeiro EB, de Marchi PGF, Honorio-França AC, França EL, Soler MAG. Interferon-gamma carrying nanoemulsion with immunomodulatory and anti-tumor activities. J Biomed Mater Res A 2019; 108:234-245. [PMID: 31587469 DOI: 10.1002/jbm.a.36808] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 09/14/2019] [Accepted: 09/16/2019] [Indexed: 12/20/2022]
Abstract
The therapeutic administration of cytokines has been introduced aiming to modulate the immune response system, seeking for different approaches to face pathologies such as cancer, auto immune and infectious diseases. The objective of this study was to investigate the effects of a stable oil-in-water (O/W) nanoemulsion system carrying the cytokine Interferon gamma (IFN-γ) on the activity of phagocytes and MCF-7 human breast cancer cells. Nanoemulsions were prepared through ultra-homogenization, and they consisted of distilled water, triglycerides of capric acid/caprylic, sorbitan-oleate, polysorbate 80, and 1-butanol. IFN-γ (100 ng ml-1 ) was incorporated into two O/W nanoemulsion formulations, and these formulations were characterized in terms of their preliminary and accelerated physicochemical stability, rheological properties, droplet size, polydispersity and surface charge. We identified the most optimal IFN-γ nanoemulsion (IFN-γNE2), which remained stable under extreme temperature variations for 90 days, contained an average dose of 97 ng ml-1 of IFN-γ and exhibited a biocompatible pH and a relative stable rheological profile. Cell viability and intracellular Ca2+ release assays conducted showed that IFN-γNE2 reduced the cell viability of MCF-7 cells without affecting the cell viability of phagocytes. Furthermore, IFN-γNE2 was able to induce cellular activity of phagocytes as evidenced by increased intracellular Ca2+ release in these cells. Our findings on this IFN-γ nanoemulsion suggest that it can be a promising therapeutic agent for immunostimulation and cancer treatment.
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Affiliation(s)
- Elton B Ribeiro
- Institute of Physics, University of Brasilia, Brasilia-DF, Brazil.,Institute of Health Science, Federal University of Mato Grosso, Sinop, MT, Brazil
| | - Patricia G F de Marchi
- Institute of Biological and Health Science, Federal University of Mato Grosso, Barra do Garças, MT, Brazil
| | - Adenilda C Honorio-França
- Institute of Biological and Health Science, Federal University of Mato Grosso, Barra do Garças, MT, Brazil
| | - Eduardo L França
- Institute of Biological and Health Science, Federal University of Mato Grosso, Barra do Garças, MT, Brazil
| | - Maria A G Soler
- Institute of Physics, University of Brasilia, Brasilia-DF, Brazil
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Willmann W, Dringen R. How to Study the Uptake and Toxicity of Nanoparticles in Cultured Brain Cells: The Dos and Don't Forgets. Neurochem Res 2018; 44:1330-1345. [PMID: 30088236 DOI: 10.1007/s11064-018-2598-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 07/09/2018] [Accepted: 07/18/2018] [Indexed: 12/16/2022]
Abstract
Due to their exciting properties, engineered nanoparticles have obtained substantial attention over the last two decades. As many types of nanoparticles are already used for technical and biomedical applications, the chances that cells in the brain will encounter nanoparticles have strongly increased. To test for potential consequences of an exposure of brain cells to engineered nanoparticles, cell culture models for different types of neural cells are frequently used. In this review article we will discuss experimental strategies and important controls that should be used to investigate the physicochemical properties of nanoparticles for the cell incubation conditions applied as well as for studies on the biocompatibility and the cellular uptake of nanoparticles in neural cells. The main focus of this article will be the interaction of cultured neural cells with iron oxide nanoparticles, but similar considerations are important for studying the consequences of an exposure of other types of cultured cells with other types of nanoparticles. Our article aims to improve the understanding of the special technical challenges of working with nanoparticles on cultured neural cells, to identify potential artifacts and to prevent misinterpretation of data on the potential adverse or beneficial consequences of a treatment of cultured cells with nanoparticles.
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Affiliation(s)
- Wiebke Willmann
- Center for Biomolecular Interactions Bremen, Faculty 2 (Biology/Chemistry), University of Bremen, P.O. Box 330440, 28334, Bremen, Germany.,Center for Environmental Research and Sustainable Technology, Leobener Strasse, 28359, Bremen, Germany
| | - Ralf Dringen
- Center for Biomolecular Interactions Bremen, Faculty 2 (Biology/Chemistry), University of Bremen, P.O. Box 330440, 28334, Bremen, Germany. .,Center for Environmental Research and Sustainable Technology, Leobener Strasse, 28359, Bremen, Germany.
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López-García I, Marín-Hernández JJ, Hernández-Córdoba M. Magnetic ferrite particles combined with electrothermal atomic absorption spectrometry for the speciation of low concentrations of arsenic. Talanta 2018; 181:6-12. [DOI: 10.1016/j.talanta.2017.12.086] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 12/21/2017] [Accepted: 12/27/2017] [Indexed: 02/03/2023]
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6
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Piazza RD, Nunes EDS, Viali WR, da Silva SW, Aragón FH, Coaquira JAH, de Morais PC, Marques RFC, Jafelicci M. Magnetic nanohydrogel obtained by miniemulsion polymerization of poly(acrylic acid) grafted onto derivatized dextran. Carbohydr Polym 2017; 178:378-385. [DOI: 10.1016/j.carbpol.2017.09.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 08/23/2017] [Accepted: 09/06/2017] [Indexed: 01/25/2023]
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Bonadio RS, Arcanjo AC, Lima EC, Vasconcelos AT, Silva RC, Horst FH, Azevedo RB, Poças-Fonseca MJ, F Longo JP. DNA methylation alterations induced by transient exposure of MCF-7 cells to maghemite nanoparticles. Nanomedicine (Lond) 2017; 12:2637-2649. [PMID: 29111877 DOI: 10.2217/nnm-2017-0241] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
AIM To evaluate the DNA methylation profile of MCF-7 cells during and after the treatment with maghemite nanoparticles (MNP-CIT). MATERIALS & METHODS Noncytotoxic MNP-CIT concentrations and cell morphology were evaluated by standard methods. DNA methylation was assessed by whole genome bisulfite sequencing. DNA methyltransferase (DNMT) genes expression was analyzed by qRT-PCR. RESULTS A total of 30 and 60 µgFeml-1 MNP-CIT accumulated in cytoplasm but did not present cytotoxic effects. The overall percentage of DNA methylation was not affected, but 58 gene-associated regions underwent DNA methylation reprogramming, including genes related to cancer onset. DNMT transcript levels were also modulated. CONCLUSION Transient exposure to MNP-CIT promoted epigenomic changes and altered the DNMT genes regulation in MCF-7 cells. These events should be considered for biomedical applications.
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Affiliation(s)
- Raphael S Bonadio
- Genetics & Morphology Department, University of Brasilia, Brasília, Brazil
| | | | | | | | - Renata C Silva
- National Institute of Metrology, Quality & Technology, Xerém, Duque de Caxias, Rio de Janeiro, Brazil
| | - Frederico H Horst
- Genetics & Morphology Department, University of Brasilia, Brasília, Brazil
| | - Ricardo B Azevedo
- Genetics & Morphology Department, University of Brasilia, Brasília, Brazil
| | | | - João Paulo F Longo
- Genetics & Morphology Department, University of Brasilia, Brasília, Brazil
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Silva LHA, da Silva JR, Ferreira GA, Silva RC, Lima ECD, Azevedo RB, Oliveira DM. Labeling mesenchymal cells with DMSA-coated gold and iron oxide nanoparticles: assessment of biocompatibility and potential applications. J Nanobiotechnology 2016; 14:59. [PMID: 27431051 PMCID: PMC4949766 DOI: 10.1186/s12951-016-0213-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 07/06/2016] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Nanoparticles' unique features have been highly explored in cellular therapies. However, nanoparticles can be cytotoxic. The cytotoxicity can be overcome by coating the nanoparticles with an appropriated surface modification. Nanoparticle coating influences biocompatibility between nanoparticles and cells and may affect some cell properties. Here, we evaluated the biocompatibility of gold and maghemite nanoparticles functionalized with 2,3-dimercaptosuccinic acid (DMSA), Au-DMSA and γ-Fe2O3-DMSA respectively, with human mesenchymal stem cells. Also, we tested these nanoparticles as tracers for mesenchymal stem cells in vivo tracking by computed tomography and as agents for mesenchymal stem cells magnetic targeting. RESULTS Significant cell death was not observed in MTT, Trypan Blue and light microscopy analyses. However, ultra-structural alterations as swollen and degenerated mitochondria, high amounts of myelin figures and structures similar to apoptotic bodies were detected in some mesenchymal stem cells. Au-DMSA and γ-Fe2O3-DMSA labeling did not affect mesenchymal stem cells adipogenesis and osteogenesis differentiation, proliferation rates or lymphocyte suppression capability. The uptake measurements indicated that both inorganic nanoparticles were well uptaken by mesenchymal stem cells. However, Au-DMSA could not be detected in microtomograph after being incorporated by mesenchymal stem cells. γ-Fe2O3-DMSA labeled cells were magnetically responsive in vitro and after infused in vivo in an experimental model of lung silicosis. CONCLUSION In terms of biocompatibility, the use of γ-Fe2O3-DMSA and Au-DMSA as tracers for mesenchymal stem cells was assured. However, Au-DMSA shown to be not suitable for visualization and tracking of these cells in vivo by standard computed microtomography. Otherwise, γ-Fe2O3-DMSA shows to be a promising agent for mesenchymal stem cells magnetic targeting.
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Affiliation(s)
- Luisa H A Silva
- IB-Departamento de Genética e Morfologia, Universidade de Brasília-UNB, Campus Universitário Darcy Ribeiro-Asa Norte, Brasília, DF, CEP 70910-970, Brazil
| | - Jaqueline R da Silva
- IB-Departamento de Genética e Morfologia, Universidade de Brasília-UNB, Campus Universitário Darcy Ribeiro-Asa Norte, Brasília, DF, CEP 70910-970, Brazil
| | | | - Renata C Silva
- Instituto Nacional de Metrologia, Rio de Janeiro, RJ, Brazil
| | - Emilia C D Lima
- Instituto de Química, Universidade Federal de Goias, Goiânia, GO, Brazil
| | - Ricardo B Azevedo
- IB-Departamento de Genética e Morfologia, Universidade de Brasília-UNB, Campus Universitário Darcy Ribeiro-Asa Norte, Brasília, DF, CEP 70910-970, Brazil
| | - Daniela M Oliveira
- IB-Departamento de Genética e Morfologia, Universidade de Brasília-UNB, Campus Universitário Darcy Ribeiro-Asa Norte, Brasília, DF, CEP 70910-970, Brazil.
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9
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Py-Daniel KR, Namban JS, de Andrade LR, de Souza PE, Paterno LG, Azevedo RB, Soler MA. Highly efficient photodynamic therapy colloidal system based on chloroaluminum phthalocyanine/pluronic micelles. Eur J Pharm Biopharm 2016; 103:23-31. [DOI: 10.1016/j.ejpb.2016.03.028] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 03/05/2016] [Accepted: 03/23/2016] [Indexed: 12/23/2022]
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Cáceres-Vélez PR, Fascineli ML, Grisolia CK, de Oliveira Lima EC, Sousa MH, de Morais PC, Bentes de Azevedo R. Genotoxic and histopathological biomarkers for assessing the effects of magnetic exfoliated vermiculite and exfoliated vermiculite in Danio rerio. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 551-552:228-237. [PMID: 26878635 DOI: 10.1016/j.scitotenv.2016.01.048] [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: 07/21/2015] [Revised: 01/08/2016] [Accepted: 01/08/2016] [Indexed: 06/05/2023]
Abstract
Magnetic exfoliated vermiculite is a synthetic nanocomposite that quickly and efficiently absorbs organic compounds such as oil from water bodies. It was developed primarily to mitigate pollution, but the possible adverse impacts of its application have not yet been evaluated. In this context, the acute toxicity of magnetic exfoliated vermiculite and exfoliated vermiculite was herein assessed by genotoxic and histopathological biomarkers in zebrafish (Danio rerio). DNA fragmentation was statistically significant for all groups exposed to the magnetic exfoliated vermiculite and for fish exposed to the highest concentration (200mg/L) of exfoliated vermiculite, whereas the micronucleus frequency, nuclear abnormalities and histopathological alterations were not statistically significant for the fish exposed to these materials. In the intestinal lumen, epithelial cells and goblet cells, we found the presence of magnetic exfoliated vermiculite and exfoliated vermiculite, but no alterations or presence of the materials-test in the gills or liver were observed. Our findings suggest that the use of magnetic exfoliated vermiculite and exfoliated vermiculite during standard ecotoxicological assays caused DNA damage in D. rerio, whose alterations may be likely to be repaired, indicating that the magnetic nanoparticles have the ability to promote genotoxic damage, such as DNA fragmentation, but not mutagenic effects.
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Affiliation(s)
- Paolin Rocio Cáceres-Vélez
- Department of Genetics and Morphology, Institute of Biological Sciences, Brasília University, Brasília, Brazil
| | - Maria Luiza Fascineli
- Department of Genetics and Morphology, Institute of Biological Sciences, Brasília University, Brasília, Brazil
| | - Cesar Koppe Grisolia
- Department of Genetics and Morphology, Institute of Biological Sciences, Brasília University, Brasília, Brazil
| | | | | | - Paulo César de Morais
- Physics Institute, Brasília University, Brasília, Brazil; Huazhong University of Science and Technology, School of Automation, Wuhan 430074, China
| | - Ricardo Bentes de Azevedo
- Department of Genetics and Morphology, Institute of Biological Sciences, Brasília University, Brasília, Brazil.
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Magnetic nanoparticle film reconstruction modulated by immersion within DMSA aqueous solution. Sci Rep 2016; 6:18202. [PMID: 27008984 PMCID: PMC4806361 DOI: 10.1038/srep18202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 11/13/2015] [Indexed: 11/08/2022] Open
Abstract
The process of reconstruction of pre-fabricated films comprising maghemite nanoparticles deposited onto flat glass substrates triggered by immersion into aqueous solutions of meso-2,3-dimercaptosuccinic acid (DMSA) at increasing concentration (0.025, 0.050, and 0.100 mol/L) is herein reported. The evolution of this process was assessed by measuring the time (t) dependence of the particle analysis histogram width (W) extracted from atomic force microscopy images. Furthermore, a physical picture to model the film reconstruction which provides reconstruction time constants associated to single particles (τ1) and small agglomerates (τn), the key units associated to the process, ranging from τ1 = 2.9 and τn = 3.4 hour (0.025 mol/L) to τ1 = 5.1 and τn = 4.6 hour (0.100 mol/L) is proposed. The nanoparticle-based film reconstruction triggered by an exogenous stimulus, the use of the W versus t data to describe the process and the model picture accounting for the recorded data have not been previously reported.
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Georgiadou V, Dendrinou-Samara C. Impact of the Presence of Octadecylamine on the Properties of Hydrothermally Prepared CoFe2O4Nanoparticles. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402323] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Sapsford KE, Algar WR, Berti L, Gemmill KB, Casey BJ, Oh E, Stewart MH, Medintz IL. Functionalizing nanoparticles with biological molecules: developing chemistries that facilitate nanotechnology. Chem Rev 2013; 113:1904-2074. [PMID: 23432378 DOI: 10.1021/cr300143v] [Citation(s) in RCA: 818] [Impact Index Per Article: 74.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Kim E Sapsford
- Division of Biology, Department of Chemistry and Materials Science, Office of Science and Engineering Laboratories, U.S. Food and Drug Administration, Silver Spring, Maryland 20993, United States
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da Paz MC, Santos MDFMA, Santos CMB, da Silva SW, de Souza LB, Lima ECD, Silva RC, Lucci CM, Morais PC, Azevedo RB, Lacava ZGM. Anti-CEA loaded maghemite nanoparticles as a theragnostic device for colorectal cancer. Int J Nanomedicine 2012; 7:5271-82. [PMID: 23055733 PMCID: PMC3468277 DOI: 10.2147/ijn.s32139] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Nanosized maghemite particles were synthesized, precoated (with dimercaptosuccinic acid) and surface-functionalized with anticarcinoembryonic antigen (anti-CEA) and successfully used to target cell lines expressing the CEA, characteristic of colorectal cancer (CRC) cells. The as-developed nanosized material device, consisting of surface decorated maghemite nanoparticles suspended as a biocompatible magnetic fluid (MF) sample, labeled MF-anti-CEA, was characterized and tested against two cell lines: a high-CEA expressing cell line (LS174T) and a low-CEA expressing cell line (HCT116). Whereas X-ray diffraction was used to assess the average core size of the as-synthesized maghemite particles (average 8.3 nm in diameter), dynamic light scattering and electrophoretic mobility measurements were used to obtain the average hydrodynamic diameter (550 nm) and the zeta-potential (−38 mV) of the as-prepared and maghemite-based nanosized device, respectively. Additionally, surface-enhanced Raman spectroscopy (SERS) was used to track the surface decoration of the nanosized maghemite particles from the very first precoating up to the attachment of the anti-CEA moiety. The Raman peak at 1655 cm−1, absent in the free anti-CEA spectrum, is the signature of the anti-CEA binding onto the precoated magnetic nanoparticles. Whereas MTT assay was used to confirm the low cell toxicity of the MF-anti-CEA device, ELISA and Prussian blue iron staining tests performed with both cell lines (LS174T and HCT116) confirm that the as-prepared MF-anti- CEA is highly specific for CEA-expressing cells. Finally, transmission electron microscopy analyses show that the association with anti-CEA seems to increase the number of LS174T cells with internalized maghemite nanoparticles, whereas no such increase seems to occur in the HCT116 cell line. In conclusion, the MF-anti-CEA sample is a biocompatible device that can specifically target CEA, suggesting its potential use as a theragnostic tool for CEA-expressing tumors, micrometastasis, and cancer-circulating cells.
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Sun XY, Yu SS, Wan JQ, Chen KZ. Facile graft of poly(2-methacryloyloxyethyl phosphorylcholine) onto Fe3O4nanoparticles by ATRP: Synthesis, properties, and biocompatibility. J Biomed Mater Res A 2012; 101:607-12. [DOI: 10.1002/jbm.a.34343] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Revised: 05/08/2012] [Accepted: 06/26/2012] [Indexed: 12/19/2022]
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Roca AG, Carmona D, Miguel-Sancho N, Bomatí-Miguel O, Balas F, Piquer C, Santamaría J. Surface functionalization for tailoring the aggregation and magnetic behaviour of silica-coated iron oxide nanostructures. NANOTECHNOLOGY 2012; 23:155603. [PMID: 22456200 DOI: 10.1088/0957-4484/23/15/155603] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We report here a detailed structural and magnetic study of different silica nanocapsules containing uniform and highly crystalline maghemite nanoparticles. The magnetic phase consists of 5 nm triethylene glycol (TREG)- or dimercaptosuccinic acid (DMSA)-coated maghemite particles. TREG-coated nanoparticles were synthesized by thermal decomposition. In a second step, TREG ligands were exchanged by DMSA. After the ligand exchange, the ζ potential of the particles changed from -10 to -40 mV, whereas the hydrodynamic size remained constant at around 15 nm. Particles coated by TREG and DMSA were encapsulated in silica following a sol-gel procedure. The encapsulation of TREG-coated nanoparticles led to large magnetic aggregates, which were embedded in coalesced silica structures. However, DMSA-coated nanoparticles led to small magnetic clusters inserted in silica spheres of around 100 nm. The final nanostructures can be described as the result of several competing factors at play. Magnetic measurements indicate that in the TREG-coated nanoparticles the interparticle magnetic interaction scenario has not dramatically changed after the silica encapsulation, whereas in the DMSA-coated nanoparticles, the magnetic interactions were screened due to the function of the silica template. Moreover, the analysis of the AC susceptibility suggests that our systems essentially behave as cluster spin glass systems.
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Affiliation(s)
- A G Roca
- Instituto de Nanociencia de Aragón, Edificio I+D, E-50018 Zaragoza, Spain.
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Alcantara GB, Paterno LG, Afonso AS, Faria RC, Pereira-da-Silva MA, Morais PC, Soler MAG. Adsorption of cobalt ferrite nanoparticles within layer-by-layer films: a kinetic study carried out using quartz crystal microbalance. Phys Chem Chem Phys 2011; 13:21233-42. [DOI: 10.1039/c1cp22693b] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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