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Chen Y, Soler L, Cazorla C, Oliveras J, Bastús NG, Puntes VF, Llorca J. Facet-engineered TiO 2 drives photocatalytic activity and stability of supported noble metal clusters during H 2 evolution. Nat Commun 2023; 14:6165. [PMID: 37789037 PMCID: PMC10547715 DOI: 10.1038/s41467-023-41976-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 09/25/2023] [Indexed: 10/05/2023] Open
Abstract
Metal clusters supported on TiO2 are widely used in many photocatalytic applications, including pollution control and production of solar fuels. Besides high photoactivity, stability during the photoreaction is another essential quality of high-performance photocatalysts, however systematic studies on this attribute are absent for metal clusters supported on TiO2. Here we have studied, both experimentally and with first-principles simulation methods, the stability of Pt, Pd and Au clusters prepared by ball milling on nanoshaped anatase nanoparticles preferentially exposing {001} (plates) and {101} (bipyramids) facets during the photogeneration of hydrogen. It is found that Pt/TiO2 exhibits superior stability than Pd/TiO2 and Au/TiO2, and that {001} facet-based photocatalysts always are more stable than their {101} analogous regardless of the considered metal species. The loss of stability associated with cluster sintering, which is facilitated by the transfer of photoexcited carriers from the metal species to the neighbouring Ti and O atoms, most significantly and detrimentally affects the H2-evolution photoactivity.
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Affiliation(s)
- Yufen Chen
- Department of Chemical Engineering, Universitat Politècnica de Catalunya, Eduard Maristany 16, EEBE, Barcelona, 08019, Spain
- Institute of Energy Technologies and Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Eduard Maristany 16, EEBE, Barcelona, 08019, Spain
| | - Lluís Soler
- Department of Chemical Engineering, Universitat Politècnica de Catalunya, Eduard Maristany 16, EEBE, Barcelona, 08019, Spain.
- Institute of Energy Technologies and Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Eduard Maristany 16, EEBE, Barcelona, 08019, Spain.
| | - Claudio Cazorla
- Department of Physics, Universitat Politècnica de Catalunya, Campus Nord, B4-B5, Barcelona, E-08034, Spain
| | - Jana Oliveras
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST), Campus UAB, 08193, Barcelona, Spain
| | - Neus G Bastús
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST), Campus UAB, 08193, Barcelona, Spain
| | - Víctor F Puntes
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST), Campus UAB, 08193, Barcelona, Spain
- Institució Catalana de Recerca I Estudis Avançats (ICREA), 08010, Barcelona, Spain
- Vall d'Hebron Research Institute (VHIR), Hospital Universitari Vall d'Hebron, Passeig de la Vall d'Hebron, 129, Barcelona, 08035, Spain
| | - Jordi Llorca
- Department of Chemical Engineering, Universitat Politècnica de Catalunya, Eduard Maristany 16, EEBE, Barcelona, 08019, Spain.
- Institute of Energy Technologies and Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Eduard Maristany 16, EEBE, Barcelona, 08019, Spain.
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Patarroyo J, Bastús NG, Puntes V. Sculpting Windows onto AuAg Hollow Cubic Nanocrystals. Nanomaterials (Basel) 2023; 13:2590. [PMID: 37764620 PMCID: PMC10538185 DOI: 10.3390/nano13182590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023]
Abstract
Using surfactants in the galvanic replacement reaction (GRR) offers a versatile approach to modulating hollow metal nanocrystal (NC) morphology and composition. Among the various surfactants available, quaternary ammonium cationic surfactants are commonly utilised. However, understanding how they precisely influence morphological features, such as the size and void distribution, is still limited. In this study, we aim to uncover how adding different surfactants-CTAB, CTAC, CTApTS, and PVP-can fine-tune the morphological characteristics of AuAg hollow NCs synthesised via GRR at room temperature. Our findings reveal that the halide counterion in the surfactant significantly controls void formation within the hollow structure. When halogenated surfactants, such as CTAB or CTAC, are employed, multichambered opened nanoboxes are formed. In contrast, with non-halogenated CTApTS, single-walled closed nanoboxes with irregularly thick walls form. Furthermore, when PVP, a polymer surfactant, is utilised, changes in concentration lead to the production of well-defined single-walled closed nanoboxes. These observations highlight the role of surfactants in tailoring the morphology of hollow NCs synthesised through GRR.
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Affiliation(s)
- Javier Patarroyo
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC, The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193 Barcelona, Spain;
| | - Neus G. Bastús
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC, The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193 Barcelona, Spain;
- CIBER en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, 28029 Madrid, Spain
| | - Victor Puntes
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC, The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193 Barcelona, Spain;
- CIBER en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, 28029 Madrid, Spain
- Vall d’Hebron Institut de Recerca (VHIR), 08035 Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain
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Casonato Melo C, Fux AC, Himly M, Bastús NG, Schlahsa L, Siewert C, Puntes V, Duschl A, Gessner I, Fauerbach JA. Recovering What Matters: High Protein Recovery after Endotoxin Removal from LPS-Contaminated Formulations Using Novel Anti-Lipid A Antibody Microparticle Conjugates. Int J Mol Sci 2023; 24:13971. [PMID: 37762274 PMCID: PMC10531372 DOI: 10.3390/ijms241813971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/05/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
Endotoxins or lipopolysaccharides (LPS), found in the outer membrane of Gram-negative bacterial cell walls, can stimulate the human innate immune system, leading to life-threatening symptoms. Therefore, regulatory limits for endotoxin content apply to injectable pharmaceuticals, and excess LPS must be removed before commercialization. The majority of available endotoxin removal systems are based on the non-specific adsorption of LPS to charged and/or hydrophobic surfaces. Albeit effective to remove endotoxins, the lack of specificity can result in the unwanted loss of essential proteins from the pharmaceutical formulation. In this work, we developed microparticles conjugated to anti-Lipid A antibodies for selective endotoxin removal. Anti-Lipid A particles were characterized using flow cytometry and microscopy techniques. These particles exhibited a depletion capacity > 6 ×103 endotoxin units/mg particles from water, as determined with two independent methods (Limulus Amebocyte Lysate test and nanoparticle tracking analysis). Additionally, we compared these particles with a non-specific endotoxin removal system in a series of formulations of increasing complexity: bovine serum albumin in water < insulin in buffer < birch pollen extracts. We demonstrated that the specific anti-Lipid A particles show a higher protein recovery without compromising their endotoxin removal capacity. Consequently, we believe that the specificity layer integrated by the anti-Lipid A antibody could be advantageous to enhance product yield.
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Affiliation(s)
- Cristiane Casonato Melo
- Chemical Biology Department, R&D Reagents, Miltenyi Biotec B.V. & Co. KG, 51429 Bergisch Gladbach, Germany; (C.C.M.); (A.C.F.); (L.S.); (C.S.)
- Division of Allergy & Immunology, Department of Biosciences & Medical Biology, Paris Lodron University of Salzburg, 5020 Salzburg, Austria; (M.H.); (A.D.)
| | - Alexandra C. Fux
- Chemical Biology Department, R&D Reagents, Miltenyi Biotec B.V. & Co. KG, 51429 Bergisch Gladbach, Germany; (C.C.M.); (A.C.F.); (L.S.); (C.S.)
- Division of Allergy & Immunology, Department of Biosciences & Medical Biology, Paris Lodron University of Salzburg, 5020 Salzburg, Austria; (M.H.); (A.D.)
| | - Martin Himly
- Division of Allergy & Immunology, Department of Biosciences & Medical Biology, Paris Lodron University of Salzburg, 5020 Salzburg, Austria; (M.H.); (A.D.)
| | - Neus G. Bastús
- Institut Català de Nanociència i Nanotecnologia (ICN2), Consejo Superior de Investigaciones Científicas (CSIC), The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08036 Barcelona, Spain; (N.G.B.); (V.P.)
- Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 08034 Barcelona, Spain
| | - Laura Schlahsa
- Chemical Biology Department, R&D Reagents, Miltenyi Biotec B.V. & Co. KG, 51429 Bergisch Gladbach, Germany; (C.C.M.); (A.C.F.); (L.S.); (C.S.)
| | - Christiane Siewert
- Chemical Biology Department, R&D Reagents, Miltenyi Biotec B.V. & Co. KG, 51429 Bergisch Gladbach, Germany; (C.C.M.); (A.C.F.); (L.S.); (C.S.)
| | - Victor Puntes
- Institut Català de Nanociència i Nanotecnologia (ICN2), Consejo Superior de Investigaciones Científicas (CSIC), The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08036 Barcelona, Spain; (N.G.B.); (V.P.)
- Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 08034 Barcelona, Spain
- Vall d’Hebron Institut de Recerca (VHIR), 08035 Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain
| | - Albert Duschl
- Division of Allergy & Immunology, Department of Biosciences & Medical Biology, Paris Lodron University of Salzburg, 5020 Salzburg, Austria; (M.H.); (A.D.)
| | - Isabel Gessner
- Chemical Biology Department, R&D Reagents, Miltenyi Biotec B.V. & Co. KG, 51429 Bergisch Gladbach, Germany; (C.C.M.); (A.C.F.); (L.S.); (C.S.)
| | - Jonathan A. Fauerbach
- Chemical Biology Department, R&D Reagents, Miltenyi Biotec B.V. & Co. KG, 51429 Bergisch Gladbach, Germany; (C.C.M.); (A.C.F.); (L.S.); (C.S.)
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García A, Cámara JA, Boullosa AM, Gustà MF, Mondragón L, Schwartz S, Casals E, Abasolo I, Bastús NG, Puntes V. Nanoceria as Safe Contrast Agents for X-ray CT Imaging. Nanomaterials (Basel) 2023; 13:2208. [PMID: 37570527 PMCID: PMC10421217 DOI: 10.3390/nano13152208] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/24/2023] [Accepted: 07/27/2023] [Indexed: 08/13/2023]
Abstract
Cerium oxide nanoparticles (CeO2NPs) have exceptional catalytic properties, rendering them highly effective in removing excessive reactive oxygen species (ROS) from biological environments, which is crucial in safeguarding these environments against radiation-induced damage. Additionally, the Ce atom's high Z number makes it an ideal candidate for utilisation as an X-ray imaging contrast agent. We herein show how the injection of albumin-stabilised 5 nm CeO2NPs into mice revealed substantial enhancement in X-ray contrast, reaching up to a tenfold increase at significantly lower concentrations than commercial or other proposed contrast agents. Remarkably, these NPs exhibited prolonged residence time within the target organs. Thus, upon injection into the tail vein, they exhibited efficient uptake by the liver and spleen, with 85% of the injected dose (%ID) recovered after 7 days. In the case of intratumoral administration, 99% ID of CeO2NPs remained within the tumour throughout the 7-day observation period, allowing for observation of disease dynamics. Mass spectrometry (ICP-MS) elemental analysis confirmed X-ray CT imaging observations.
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Affiliation(s)
- Ana García
- Design and Pharmacokinetics of Nanoparticles, CIBBIM-Nanomedicine, Vall d’Hebron Hospital Universitari, Vall d’Hebron Barcelona Hospital Campus, Passeig Vall d’Hebron 119-129, 08035 Barcelona, Spain; (A.G.); (L.M.)
| | - Juan Antonio Cámara
- Preclinical Imaging Platform, Vall d’Hebron Institute of Research (VHIR), Universitat Autònoma de Barcelona (UAB), 08035 Barcelona, Spain;
| | - Ana María Boullosa
- Clinical Biochemistry, Drug Delivery & Targeting (CB-DDT), Vall d’Hebron Hospital Universitari, Vall d’Hebron Barcelona Hospital Campus, Passeig Vall d’Hebron 119-129, 08035 Barcelona, Spain; (A.M.B.); (I.A.)
- Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 08034 Barcelona, Spain; (M.F.G.); (N.G.B.)
| | - Muriel F. Gustà
- Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 08034 Barcelona, Spain; (M.F.G.); (N.G.B.)
- Institut Català de Nanociència i Nanotecnologia (ICN2), Consejo Superior de Investigaciones Científicas (CSIC), The Barcelona Institute of Science and Technology (BIST), 08036 Barcelona, Spain
| | - Laura Mondragón
- Design and Pharmacokinetics of Nanoparticles, CIBBIM-Nanomedicine, Vall d’Hebron Hospital Universitari, Vall d’Hebron Barcelona Hospital Campus, Passeig Vall d’Hebron 119-129, 08035 Barcelona, Spain; (A.G.); (L.M.)
- Institut Català de Nanociència i Nanotecnologia (ICN2), Consejo Superior de Investigaciones Científicas (CSIC), The Barcelona Institute of Science and Technology (BIST), 08036 Barcelona, Spain
| | - Simó Schwartz
- Clinical Biochemistry, Drug Delivery & Targeting (CB-DDT), Vall d’Hebron Hospital Universitari, Vall d’Hebron Barcelona Hospital Campus, Passeig Vall d’Hebron 119-129, 08035 Barcelona, Spain; (A.M.B.); (I.A.)
- Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 08034 Barcelona, Spain; (M.F.G.); (N.G.B.)
- Servei de Bioquímica, Vall d’Hebron Hospital Universitari, Vall d’Hebron Barcelona Hospital Campus, Passeig Vall d’Hebron 119-129, 08035 Barcelona, Spain
| | - Eudald Casals
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China;
| | - Ibane Abasolo
- Clinical Biochemistry, Drug Delivery & Targeting (CB-DDT), Vall d’Hebron Hospital Universitari, Vall d’Hebron Barcelona Hospital Campus, Passeig Vall d’Hebron 119-129, 08035 Barcelona, Spain; (A.M.B.); (I.A.)
- Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 08034 Barcelona, Spain; (M.F.G.); (N.G.B.)
- Servei de Bioquímica, Vall d’Hebron Hospital Universitari, Vall d’Hebron Barcelona Hospital Campus, Passeig Vall d’Hebron 119-129, 08035 Barcelona, Spain
| | - Neus G. Bastús
- Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 08034 Barcelona, Spain; (M.F.G.); (N.G.B.)
- Institut Català de Nanociència i Nanotecnologia (ICN2), Consejo Superior de Investigaciones Científicas (CSIC), The Barcelona Institute of Science and Technology (BIST), 08036 Barcelona, Spain
| | - Víctor Puntes
- Design and Pharmacokinetics of Nanoparticles, CIBBIM-Nanomedicine, Vall d’Hebron Hospital Universitari, Vall d’Hebron Barcelona Hospital Campus, Passeig Vall d’Hebron 119-129, 08035 Barcelona, Spain; (A.G.); (L.M.)
- Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 08034 Barcelona, Spain; (M.F.G.); (N.G.B.)
- Institut Català de Nanociència i Nanotecnologia (ICN2), Consejo Superior de Investigaciones Científicas (CSIC), The Barcelona Institute of Science and Technology (BIST), 08036 Barcelona, Spain
- Institut Català de Recerca i Estudis Avançats, (ICREA), P. Lluis Companys 23, 08010 Barcelona, Spain
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Gustà MF, Edel MJ, Salazar VA, Alvarez-Palomo B, Juan M, Broggini M, Damia G, Bigini P, Corbelli A, Fiordaliso F, Barbul A, Korenstein R, Bastús NG, Puntes V. Exploiting endocytosis for transfection of mRNA for cytoplasmatic delivery using cationic gold nanoparticles. Front Immunol 2023; 14:1128582. [PMID: 37228592 PMCID: PMC10205015 DOI: 10.3389/fimmu.2023.1128582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 04/21/2023] [Indexed: 05/27/2023] Open
Abstract
Introduction Gene therapy holds promise to cure various diseases at the fundamental level. For that, efficient carriers are needed for successful gene delivery. Synthetic 'non-viral' vectors, as cationic polymers, are quickly gaining popularity as efficient vectors for transmitting genes. However, they suffer from high toxicity associated with the permeation and poration of the cell membrane. This toxic aspect can be eliminated by nanoconjugation. Still, results suggest that optimising the oligonucleotide complexation, ultimately determined by the size and charge of the nanovector, is not the only barrier to efficient gene delivery. Methods We herein develop a comprehensive nanovector catalogue comprising different sizes of Au NPs functionalized with two different cationic molecules and further loaded with mRNA for its delivery inside the cell. Results and Discussion Tested nanovectors showed safe and sustained transfection efficiencies over 7 days, where 50 nm Au NPs displayed the highest transfection rates. Remarkably, protein expression was increased when nanovector transfection was performed combined with chloroquine. Cytotoxicity and risk assessment demonstrated that nanovectors are safe, ascribed to lesser cellular damage due to their internalization and delivery via endocytosis. Obtained results may pave the way to design advanced and efficient gene therapies for safely transferring oligonucleotides.
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Affiliation(s)
- Muriel F. Gustà
- Institut Català de Nanociència i Nanotecnologia (ICN2), Consejo Superior de Investigaciones Científicas (CSIC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Vall d’Hebron Institut de Recerca (VHIR), Barcelona, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Michael J. Edel
- Hospital Clínic de Barcelona, Servei Immunologia-IDIBAPS, Barcelona, Spain
- Unit of Anatomy and Embryology, Universitat Autònoma de Barcelona, Faculty of Medicine, Barcelona, Spain
- University of Western Australia, Faculty of Medicine, Discipline of Medical Sciences and Genetics, School of Biomedical Sciences, Perth, WA, Australia
| | - Vivian A. Salazar
- Institut Català de Nanociència i Nanotecnologia (ICN2), Consejo Superior de Investigaciones Científicas (CSIC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | | | - Manel Juan
- Hospital Clínic de Barcelona, Servei Immunologia-IDIBAPS, Barcelona, Spain
| | - Massimo Broggini
- IRCCS‐Istituto di Ricerche Farmacologiche Mario Negri, Milano, Italy
| | - Giovanna Damia
- IRCCS‐Istituto di Ricerche Farmacologiche Mario Negri, Milano, Italy
| | - Paolo Bigini
- IRCCS‐Istituto di Ricerche Farmacologiche Mario Negri, Milano, Italy
| | | | - Fabio Fiordaliso
- IRCCS‐Istituto di Ricerche Farmacologiche Mario Negri, Milano, Italy
| | - Alexander Barbul
- Tel Aviv University, Sackler School of Medicine, Tel Aviv-Yafo, Israel
| | - Rafi Korenstein
- Tel Aviv University, Sackler School of Medicine, Tel Aviv-Yafo, Israel
| | - Neus G. Bastús
- Institut Català de Nanociència i Nanotecnologia (ICN2), Consejo Superior de Investigaciones Científicas (CSIC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Víctor Puntes
- Institut Català de Nanociència i Nanotecnologia (ICN2), Consejo Superior de Investigaciones Científicas (CSIC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Vall d’Hebron Institut de Recerca (VHIR), Barcelona, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
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Violatto MB, Sitia G, Talamini L, Morelli A, Tran NL, Zhang Q, Masood A, Pelaz B, Chakraborty I, Cui D, Parak WJ, Salmona M, Bastús NG, Puntes V, Bigini P. Variations in Biodistribution and Acute Response of Differently Shaped Titania Nanoparticles in Healthy Rodents. Nanomaterials (Basel) 2023; 13:1174. [PMID: 37049267 PMCID: PMC10097059 DOI: 10.3390/nano13071174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 03/22/2023] [Accepted: 03/23/2023] [Indexed: 06/19/2023]
Abstract
Titanium dioxide nanoparticles (TiO2 NPs) are one of the main sources of the nanoparticulate matter exposure to humans. Although several studies have demonstrated their potential toxic effects, the real nature of the correlation between NP properties and their interaction with biological targets is still far from being fully elucidated. Here, engineered TiO2 NPs with various geometries (bipyramids, plates, and rods) have been prepared, characterized and intravenously administered in healthy mice. Parameters such as biodistribution, accumulation, and toxicity have been assessed in the lungs and liver. Our data show that the organ accumulation of TiO2 NPs, measured by ICP-MS, is quite low, and this is only partially and transiently affected by the NP geometries. The long-lasting permanence is exclusively restricted to the lungs. Here, bipyramids and plates show a higher accumulation, and interestingly, rod-shaped NPs are the most toxic, leading to histopathological pulmonary alterations. In addition, they are also able to induce a transient increase in serum markers related to hepatocellular injury. These results indicate that rods, more than bipyramidal and spherical geometries, lead to a stronger and more severe biological effect. Overall, small physico-chemical differences can dramatically modify both accumulation and safety.
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Affiliation(s)
- Martina B. Violatto
- Department of Molecular Biochemistry and Pharmacology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milano, Italy; (M.B.V.); (L.T.); (A.M.); (M.S.)
| | - Giovanni Sitia
- Experimental Hepatology Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Via Olgettina 58, 20132 Milano, Italy; (G.S.); (N.L.T.)
| | - Laura Talamini
- Department of Molecular Biochemistry and Pharmacology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milano, Italy; (M.B.V.); (L.T.); (A.M.); (M.S.)
| | - Annalisa Morelli
- Department of Molecular Biochemistry and Pharmacology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milano, Italy; (M.B.V.); (L.T.); (A.M.); (M.S.)
| | - Ngoc Lan Tran
- Experimental Hepatology Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Via Olgettina 58, 20132 Milano, Italy; (G.S.); (N.L.T.)
| | - Qian Zhang
- Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Institute of Nano Biomedicine and Engineering, Shanghai Jiao Tong University, 800 Dongchuan RD, Shanghai 200240, China; (Q.Z.); (D.C.)
| | - Atif Masood
- Karachi Institute of Radiotherapy and Nuclear Medicine (KIRAN), 75530 Karachi, Pakistan;
| | - Beatriz Pelaz
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Inorgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain;
| | - Indranath Chakraborty
- School of Nano Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India;
| | - Daxiang Cui
- Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Institute of Nano Biomedicine and Engineering, Shanghai Jiao Tong University, 800 Dongchuan RD, Shanghai 200240, China; (Q.Z.); (D.C.)
| | - Wolfgang J. Parak
- Center for Hybrid Nanostructures (CHyN), Universität Hamburg, Luruper Chaussee 149, 22607 Hamburg, Germany;
| | - Mario Salmona
- Department of Molecular Biochemistry and Pharmacology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milano, Italy; (M.B.V.); (L.T.); (A.M.); (M.S.)
| | - Neus G. Bastús
- Vall d’Hebron Institut de Recerca (VHIR), 08035 Barcelona, Spain; (N.G.B.); (V.P.)
- Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain
| | - Victor Puntes
- Vall d’Hebron Institut de Recerca (VHIR), 08035 Barcelona, Spain; (N.G.B.); (V.P.)
- Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain
- Institut Català de Nanociència i Nanotecnologia (ICN2), Consejo Superior de Investigaciones Científicas CSIC and the Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08036 Barcelona, Spain
- CIBER en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, 28029 Madrid, Spain
| | - Paolo Bigini
- Department of Molecular Biochemistry and Pharmacology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milano, Italy; (M.B.V.); (L.T.); (A.M.); (M.S.)
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7
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Ernst LM, Mondragón L, Ramis J, Gustà MF, Yudina T, Casals E, Bastús NG, Fernández-Varo G, Casals G, Jiménez W, Puntes V. Exploring the Long-Term Tissue Accumulation and Excretion of 3 nm Cerium Oxide Nanoparticles after Single Dose Administration. Antioxidants (Basel) 2023; 12:antiox12030765. [PMID: 36979013 PMCID: PMC10045098 DOI: 10.3390/antiox12030765] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/14/2023] [Accepted: 03/16/2023] [Indexed: 03/30/2023] Open
Abstract
Nanoparticle (NP) pharmacokinetics significantly differ from traditional small molecule principles. From this emerges the need to create new tools and concepts to harness their full potential and avoid unnecessary risks. Nanoparticle pharmacokinetics strongly depend on size, shape, surface functionalisation, and aggregation state, influencing their biodistribution, accumulation, transformations, and excretion profile, and hence their efficacy and safety. Today, while NP biodistribution and nanoceria biodistribution have been studied often at short times, their long-term accumulation and excretion have rarely been studied. In this work, 3 nm nanoceria at 5.7 mg/kg of body weight was intravenously administrated in a single dose to healthy mice. Biodistribution was measured in the liver, spleen, kidney, lung, brain, lymph nodes, ovary, bone marrow, urine, and faeces at different time points (1, 9, 30, and 100 days). Biodistribution and urinary and faecal excretion were also studied in rats placed in metabolic cages at shorter times. The similarity of results of different NPs in different models is shown as the heterogeneous nanoceria distribution in organs. After the expectable accumulation in the liver and spleen, the concentration of cerium decays exponentially, accounting for about a 50% excretion of cerium from the body in 100 days. Cerium ions, coming from NP dissolution, are most likely excreted via the urinary tract, and ceria nanoparticles accumulated in the liver are most likely excreted via the hepatobiliary route. In addition, nanoceria looks safe and does not damage the target organs. No weight loss or apathy was observed during the course of the experiments.
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Affiliation(s)
- Lena M Ernst
- Vall d'Hebron Research Institute (VHIR), 08035 Barcelona, Spain
| | - Laura Mondragón
- Vall d'Hebron Research Institute (VHIR), 08035 Barcelona, Spain
- Josep Carreras Leukaemia Research Institute (IJC), 08916 Badalona, Spain
| | - Joana Ramis
- Vall d'Hebron Research Institute (VHIR), 08035 Barcelona, Spain
| | - Muriel F Gustà
- Institut Català de Nanociència I Nanotecnologia (ICN2), CSIC, The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193 Barcelona, Spain
- Networking Research Centre for Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Tetyana Yudina
- Institut Català de Nanociència I Nanotecnologia (ICN2), CSIC, The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Eudald Casals
- Vall d'Hebron Research Institute (VHIR), 08035 Barcelona, Spain
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Neus G Bastús
- Institut Català de Nanociència I Nanotecnologia (ICN2), CSIC, The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193 Barcelona, Spain
- Networking Research Centre for Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Guillermo Fernández-Varo
- Service of Biochemistry and Molecular Genetics, Hospital Clinic, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - Gregori Casals
- Service of Biochemistry and Molecular Genetics, Hospital Clinic, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
- Department of Fundamental Care and Medical-Surgical Nursing, Universitat de Barcelona, 08007 Barcelona, Spain
| | - Wladimiro Jiménez
- Service of Biochemistry and Molecular Genetics, Hospital Clinic, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
- Departament de Biomedicina, Universitat de Barcelona, 08007 Barcelona, Spain
| | - Victor Puntes
- Vall d'Hebron Research Institute (VHIR), 08035 Barcelona, Spain
- Institut Català de Nanociència I Nanotecnologia (ICN2), CSIC, The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193 Barcelona, Spain
- Networking Research Centre for Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain
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8
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Genç A, Patarroyo J, Sancho-Parramon J, Arenal R, Bastús NG, Puntes V, Arbiol J. Asymmetrical Plasmon Distribution in Hybrid AuAg Hollow/Solid Coded Nanotubes. Nanomaterials (Basel) 2023; 13:992. [PMID: 36985887 PMCID: PMC10051431 DOI: 10.3390/nano13060992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 02/26/2023] [Accepted: 03/03/2023] [Indexed: 06/18/2023]
Abstract
Morphological control at the nanoscale paves the way to fabricate nanostructures with desired plasmonic properties. In this study, we discuss the nanoengineering of plasmon resonances in 1D hollow nanostructures of two different AuAg nanotubes, including completely hollow nanotubes and hybrid nanotubes with solid Ag and hollow AuAg segments. Spatially resolved plasmon mapping by electron energy loss spectroscopy (EELS) revealed the presence of high order resonator-like modes and localized surface plasmon resonance (LSPR) modes in both nanotubes. The experimental findings accurately correlated with the boundary element method (BEM) simulations. Both experiments and simulations revealed that the plasmon resonances are intensely present inside the nanotubes due to plasmon hybridization. Based on the experimental and simulated results, we show that the novel hybrid AuAg nanotubes possess two significant coexisting features: (i) LSPRs are distinctively generated from the hollow and solid parts of the hybrid AuAg nanotube, which creates a way to control a broad range of plasmon resonances with one single nanostructure, and (ii) the periodicity of the high-order modes are disrupted due to the plasmon hybridization by the interaction of solid and hollow parts, resulting in an asymmetrical plasmon distribution in 1D nanostructures. The asymmetry could be modulated/engineered to control the coded plasmonic nanotubes.
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Affiliation(s)
- Aziz Genç
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
| | - Javier Patarroyo
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
| | | | - Raul Arenal
- Instituto de Nanociencia y Materiales de Aragon (INMA), CSIC-U de Zaragoza, 50009 Zaragoza, Spain
- Laboratorio de Microscopias Avanzadas (LMA), Universidad de Zaragoza, 50018 Zaragoza, Spain
- ARAID Foundation, 50018 Zaragoza, Spain
| | - Neus G. Bastús
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
| | - Victor Puntes
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
- Vall d’Hebron Institut de Recerca (VHIR), 08035 Barcelona, Spain
- ICREA, 08010 Barcelona, Spain
| | - Jordi Arbiol
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
- ICREA, 08010 Barcelona, Spain
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9
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González-Rioja R, Salazar VA, Bastús NG, Puntes V. The development of highly dense highly protected surfactant ionizable lipid RNA loaded nanoparticles. Front Immunol 2023; 14:1129296. [PMID: 36923400 PMCID: PMC10009161 DOI: 10.3389/fimmu.2023.1129296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 02/14/2023] [Indexed: 03/02/2023] Open
Abstract
The long quest for efficient drug administration has been looking for a universal carrier that can precisely transport traditional drugs, new genomic and proteic therapeutic agents. Today, researchers have found conditions to overcome the two main drug delivery dilemmas. On the one side, the versatility of the vehicle to efficiently load, protect and transport the drug and then release it at the target place. On the other hand, the questions related to the degree of PEGylation which are needed to avoid nanoparticle (NP) aggregation and opsonization while preventing cellular uptake. The development of different kinds of lipidic drug delivery vehicles and particles has resulted in the development of ionizable lipid nanoparticles (iLNPs), which can overcome most of the typical drug delivery problems. Proof of their success is the late approval and massive administration as the prophylactic vaccine for SARS-CoV-2. These ILNPs are built by electrostatic aggregation of surfactants, the therapeutic agent, and lipids that self-segregate from an aqueous solution, forming nanoparticles stabilized with lipid polymers, such as PEG. These vehicles overcome previous limitations such as low loading and high toxicity, likely thanks to low charge at the working pH and reduced size, and their entry into the cells via endocytosis rather than membrane perforation or fusion, always associated with higher toxicity. We herein revise their primary features, synthetic methods to prepare and characterize them, pharmacokinetic (administration, distribution, metabolization and excretion) aspects, and biodistribution and fate. Owing to their advantages, iLNPs are potential drug delivery systems to improve the management of various diseases and widely available for clinical use.
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Affiliation(s)
- Ramon González-Rioja
- Institut Català de Nanociència i Nanotecnologia (ICN2), Consejo Superior de Investigaciones Científicas (CSIC), The Barcelona Institute of Science and Technology (BIST), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Vivian A Salazar
- Institut Català de Nanociència i Nanotecnologia (ICN2), Consejo Superior de Investigaciones Científicas (CSIC), The Barcelona Institute of Science and Technology (BIST), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Neus G Bastús
- Institut Català de Nanociència i Nanotecnologia (ICN2), Consejo Superior de Investigaciones Científicas (CSIC), The Barcelona Institute of Science and Technology (BIST), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain.,Centro de Investigación Biomédica en Red (CIBER) en Bioingeniería, Biomateriales y Nanomedicina, Centro de Investigación Biomédica en Red en Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN), Madrid, Spain
| | - Victor Puntes
- Institut Català de Nanociència i Nanotecnologia (ICN2), Consejo Superior de Investigaciones Científicas (CSIC), The Barcelona Institute of Science and Technology (BIST), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain.,Centro de Investigación Biomédica en Red (CIBER) en Bioingeniería, Biomateriales y Nanomedicina, Centro de Investigación Biomédica en Red en Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN), Madrid, Spain.,Malalties Infeccioses, Nanopartícules farmacocinétiques, Vall d'Hebron Institut de Recerca, Barcelona, Spain.,Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
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10
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Oliveras J, Marcon L, Bastús NG, Puntes V. Functionalization of graphene nanostructures with inorganic nanoparticles and their use for the removal of pharmaceutical pollutants in water. Front Chem Eng 2022. [DOI: 10.3389/fceng.2022.1084035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Emerging pollutants such as pharmaceuticals are of special concern because despite their low environmental concentration, their biological activity can be intense, and they should be prevented to reach uncontrolledly to the environment. A graphene-based hybrid material decorated with Fe3O4 and TiO2 nanoparticles (NPs) has been prepared to effectively remove emerging pollutants as nonsteroidal anti-inflammatory drugs (NSAIDs) Ibuprofen and Diclofenac present in water at low environmental concentrations by a one-step functionalization process following a novel gentle and scalable surfactant depletion approach. Following this methodology, nanoparticles are progressively deprived of their original surfactant in the presence of graphene, leading to the formation of hybrid nanostructures composed of two different types of nanoparticles well dispersed over the graphene nanosheets. Ibuprofen and Diclofenac adsorption kinetics on the composites was investigated via UV-Vis spectroscopy. The as prepared hybrid material possesses high adsorption capacity, superparamagnetic properties, photocatalytic behavior, and good water dispersibility. Thanks to incorporating TiO2 nanoparticles as in situ catalysts, the adsorption performance of composites is restored after use, which could be a promising recycling pathway for the adsorbents in wastewater treatments.
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11
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Galyamin D, Ernst LM, Fitó-Parera A, Mira-Vidal G, Bastús NG, Sabaté N, Puntes V. Nanoceria dissolution at acidic pH by breaking off the catalytic loop. Nanoscale 2022; 14:14223-14230. [PMID: 36125109 PMCID: PMC9536484 DOI: 10.1039/d2nr03586c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 08/11/2022] [Indexed: 06/15/2023]
Abstract
This manuscript proves the reproducibility and robustness of cerium oxide nanoparticles, nanoceria, employed as a chemical reagent with oxidizing capacity (as an electron sink) at acidic pH. Unlike nanoceria multi-enzyme-mimetic capabilities at neutral or high pH, nanoceria can behave as a stoichiometric reagent at low pH where insoluble Ce4+ ions transform into soluble Ce3+ in the nanocrystal that finally dissolves. This behaviour can be interpreted as enzyme-like when nanoceria is in excess with respect to the substrate. Under these conditions, the Ce3+/Ce4+ ratio in the NPs can easily be estimated by titration with ferrocyanide. This procedure could become a rapid assessment tool for evaluating nanoceria capacity in liquid environments.
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Affiliation(s)
- Dmitry Galyamin
- Instituto de Microelectrónica de Barcelona, IMB-CNM (CSIC). C/dels Til·lers, Campus Universitat Autònoma de Barcelona (UAB), 08193 Barcelona, Spain.
| | - Lena M Ernst
- Vall d'Hebron Research Institute (VHIR). Hospital Universitari Vall d'Hebron, Passeig de la Vall d'Hebron, 129, 08035 Barcelona, Spain.
| | - Aina Fitó-Parera
- Instituto de Microelectrónica de Barcelona, IMB-CNM (CSIC). C/dels Til·lers, Campus Universitat Autònoma de Barcelona (UAB), 08193 Barcelona, Spain.
| | - Guillem Mira-Vidal
- Instiut Català de Nanociència I Nanotecnologia (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST). Campus UAB, 08193, Barcelona, Spain
| | - Neus G Bastús
- Instiut Català de Nanociència I Nanotecnologia (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST). Campus UAB, 08193, Barcelona, Spain
| | - Neus Sabaté
- Instituto de Microelectrónica de Barcelona, IMB-CNM (CSIC). C/dels Til·lers, Campus Universitat Autònoma de Barcelona (UAB), 08193 Barcelona, Spain.
- Institució Catalana de Recerca I Estudis Avançats (ICREA), 08010, Barcelona, Spain
| | - Victor Puntes
- Vall d'Hebron Research Institute (VHIR). Hospital Universitari Vall d'Hebron, Passeig de la Vall d'Hebron, 129, 08035 Barcelona, Spain.
- Instiut Català de Nanociència I Nanotecnologia (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST). Campus UAB, 08193, Barcelona, Spain
- Institució Catalana de Recerca I Estudis Avançats (ICREA), 08010, Barcelona, Spain
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12
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Zhao S, Riedel M, Patarroyo J, Bastús NG, Puntes V, Yue Z, Lisdat F, Parak WJ. Tailoring of the photocatalytic activity of CeO 2 nanoparticles by the presence of plasmonic Ag nanoparticles. Nanoscale 2022; 14:12048-12059. [PMID: 35946341 DOI: 10.1039/d2nr01318e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The present study investigates basic features of a photoelectrochemical system based on CeO2 nanoparticles fixed on gold electrodes. Since photocurrent generation is limited to the absorption range of the CeO2 in the UV range, the combination with metal nanoparticles has been studied. It can be shown that the combination of silver nanoparticles with the CeO2 can shift the excitation range into the visible light wavelength range. Here a close contact between both components has been found to be essential and thus, hybrid CeO2@Ag nanoparticles have been prepared and analyzed. We have collected arguments that electron transfer occurs between both compositional elements of the hybrid nanoparticles.The photocurrent generation can be rationalized on the basis of an energy diagram underlying the necessity of surface plasmon excitation in the metal nanoparticles, which is also supported by wavelength-dependent photocurrent measurements. However, electrochemical reactions seem to occur at the CeO2 surface and consequently, the catalytic properties of this material can be exploited as exemplified with the photoelectrochemical reduction of hydrogen peroxide. It can be further demonstrated that the layer-by layer technique can be exploited to create a multilayer system on top of a gold electrode which allows the adjustment of the sensitivity of the photoelectrochemical system. Thus, with a 5-layer electrode with hybrid CeO2@Ag nanoparticles submicromolar hydrogen peroxide concentrations can be detected.
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Affiliation(s)
- Shuang Zhao
- Fachbereich Physik, CHyN, Universität Hamburg, 22761 Hamburg, Germany.
| | - Marc Riedel
- Biosystems Technology, Institute of Life Sciences and Biomedical Technologies, Technical University of Applied Sciences Wildau, 15745 Wildau, Germany.
| | - Javier Patarroyo
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain
| | - Neus G Bastús
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain
| | - Victor Puntes
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain
- Vall d'Hebron Institut de Recerca (VHIR), 08035 Barcelona, Catalonia, Spain
- ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Catalonia, Spain
| | - Zhao Yue
- Department of Microelectronics, Nankai University, 30071 Tianjin, China.
| | - Fred Lisdat
- Biosystems Technology, Institute of Life Sciences and Biomedical Technologies, Technical University of Applied Sciences Wildau, 15745 Wildau, Germany.
| | - Wolfgang J Parak
- Fachbereich Physik, CHyN, Universität Hamburg, 22761 Hamburg, Germany.
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13
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Suárez-López R, Puntes VF, Bastús NG, Hervés C, Jaime C. Nucleation and growth of gold nanoparticles in the presence of different surfactants. A dissipative particle dynamics study. Sci Rep 2022; 12:13926. [PMID: 35977997 PMCID: PMC9385746 DOI: 10.1038/s41598-022-18155-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 08/05/2022] [Indexed: 11/23/2022] Open
Abstract
Nanoparticles (NPs) show promising applications in biomedicine, catalysis, and energy harvesting. This applicability relies on controlling the material’s features at the nanometer scale. Surfactants, a unique class of surface-active molecules, have a remarkable ability to tune NPs activity; provide specific functions, avoid their aggregation, and create stable colloidal solutions. Surfactants also control nanoparticles’ nucleation and growth processes by modifying nuclei solubility and surface energy. While nucleation seems independent from the surfactant, NP’s growth depends on it. NP`s size is influenced by the type of functional group (C, O, S or N), length of its C chain and NP to surfactant ratio. In this paper, gold nanoparticles (Au NPs) are taken as model systems to study how nucleation and growth processes are affected by the choice of surfactants by Dissipative Particle Dynamics (DPD) simulations. DPD has been mainly used for studying biochemical structures, like lipid bilayer models. However, the study of solid NPs, and their conjugates, needs the introduction of a new metallic component. To represent the collective phenomena of these large systems, their degrees of freedom are reduced by Coarse-Grained (CG) models. DPD behaved as a powerful tool for studying complex systems and shedding some light on some experimental observations, otherwise difficult to explain.
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Affiliation(s)
- Rosa Suárez-López
- Departament de Química, Universitat Autònoma de Barcelona, Bellaterra (Cerdanyola del Vallès), 08193, Barcelona, Spain
| | - Víctor F Puntes
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain.,Vall d'Hebron Institut de Recerca (VHIR), 08035, Barcelona, Spain.,Institució Catalana de Recerca i Estudis Avançats (ICREA), P. Lluís Companys 23, 08010, Barcelona, Spain
| | - Neus G Bastús
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - Carmen Hervés
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - Carlos Jaime
- Departament de Química, Universitat Autònoma de Barcelona, Bellaterra (Cerdanyola del Vallès), 08193, Barcelona, Spain.
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14
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Barbero F, Michelini S, Moriones OH, Patarroyo J, Rosell J, F. Gusta M, Vitali M, Martín L, Canals F, Duschl A, Horejs-Hoeck J, Mondragón L, Bastús NG, Puntes V. Role of Common Cell Culture Media Supplements on Citrate-Stabilized Gold Nanoparticle Protein Corona Formation, Aggregation State, and the Consequent Impact on Cellular Uptake. Bioconjug Chem 2022; 33:1505-1514. [DOI: 10.1021/acs.bioconjchem.2c00232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Francesco Barbero
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain
- Universitat Autònoma de Barcelona (UAB), Campus
UAB, Bellaterra, 08193 Barcelona, Spain
| | - Sara Michelini
- Department of Biosciences, University of Salzburg, Hellbrunner Str. 34, 5020 Salzburg, Austria
| | - Oscar H. Moriones
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain
- Universitat Autònoma de Barcelona (UAB), Campus
UAB, Bellaterra, 08193 Barcelona, Spain
| | - Javier Patarroyo
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Jordi Rosell
- Vall d’Hebron Institut de Recerca (VHIR), 08035 Barcelona, Spain
| | - Muriel F. Gusta
- Vall d’Hebron Institut de Recerca (VHIR), 08035 Barcelona, Spain
| | - Michele Vitali
- Vall d’Hebron Institut de Recerca (VHIR), 08035 Barcelona, Spain
| | - Luna Martín
- Proteomics Laboratory, Vall d’Hebron Institute of Oncology (VHIO), 08035 Barcelona, Spain
| | - Francesc Canals
- Proteomics Laboratory, Vall d’Hebron Institute of Oncology (VHIO), 08035 Barcelona, Spain
| | - Albert Duschl
- Department of Biosciences, University of Salzburg, Hellbrunner Str. 34, 5020 Salzburg, Austria
| | - Jutta Horejs-Hoeck
- Department of Biosciences, University of Salzburg, Hellbrunner Str. 34, 5020 Salzburg, Austria
| | - Laura Mondragón
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain
- Vall d’Hebron Institut de Recerca (VHIR), 08035 Barcelona, Spain
| | - Neus G. Bastús
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Víctor Puntes
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain
- Universitat Autònoma de Barcelona (UAB), Campus
UAB, Bellaterra, 08193 Barcelona, Spain
- Vall d’Hebron Institut de Recerca (VHIR), 08035 Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), P. Lluís Companys 23, 08010 Barcelona, Spain
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15
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Vandebriel RJ, Remy S, Vermeulen JP, Hurkmans EGE, Kevenaar K, Bastús NG, Pelaz B, Soliman MG, Puntes VF, Parak WJ, Pennings JLA, Nelissen I. Pathways Related to NLRP3 Inflammasome Activation Induced by Gold Nanorods. Int J Mol Sci 2022; 23:ijms23105763. [PMID: 35628574 PMCID: PMC9145314 DOI: 10.3390/ijms23105763] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 05/16/2022] [Accepted: 05/17/2022] [Indexed: 01/27/2023] Open
Abstract
The widespread and increasing use of engineered nanomaterials (ENM) increases the risk of human exposure, generating concern that ENM may provoke adverse health effects. In this respect, their physicochemical characteristics are critical. The immune system may respond to ENM through inflammatory reactions. The NLRP3 inflammasome responds to a wide range of ENM, and its activation is associated with various inflammatory diseases. Recently, anisotropic ENM have become of increasing interest, but knowledge of their effects on the immune system is still limited. The objective of the study was to compare the effects of gold ENM of different shapes on NLRP3 inflammasome activation and related signalling pathways. Differentiated THP-1 cells (wildtype, ASC- or NLRP3-deficient), were exposed to PEGylated gold nanorods, nanostars, and nanospheres, and, thus, also different surface chemistries, to assess NLRP3 inflammasome activation. Next, the exposed cells were subjected to gene expression analysis. Nanorods, but not nanostars or nanospheres, showed NLRP3 inflammasome activation. ASC- or NLRP3-deficient cells did not show this effect. Gene Set Enrichment Analysis revealed that gold nanorod-induced NLRP3 inflammasome activation was accompanied by downregulated sterol/cholesterol biosynthesis, oxidative phosphorylation, and purinergic receptor signalling. At the level of individual genes, downregulation of Paraoxonase-2, a protein that controls oxidative stress, was most notable. In conclusion, the shape and surface chemistry of gold nanoparticles determine NLRP3 inflammasome activation. Future studies should include particle uptake and intracellular localization.
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Affiliation(s)
- Rob J. Vandebriel
- Centre for Health Protection, National Institute for Public Health & the Environment, 3720 BA Bilthoven, The Netherlands; (J.P.V.); (E.G.E.H.); (K.K.); (J.L.A.P.)
- Correspondence:
| | - Sylvie Remy
- Health Unit, VITO NV, 2400 Mol, Belgium; (S.R.); (I.N.)
| | - Jolanda P. Vermeulen
- Centre for Health Protection, National Institute for Public Health & the Environment, 3720 BA Bilthoven, The Netherlands; (J.P.V.); (E.G.E.H.); (K.K.); (J.L.A.P.)
| | - Evelien G. E. Hurkmans
- Centre for Health Protection, National Institute for Public Health & the Environment, 3720 BA Bilthoven, The Netherlands; (J.P.V.); (E.G.E.H.); (K.K.); (J.L.A.P.)
| | - Kirsten Kevenaar
- Centre for Health Protection, National Institute for Public Health & the Environment, 3720 BA Bilthoven, The Netherlands; (J.P.V.); (E.G.E.H.); (K.K.); (J.L.A.P.)
| | - Neus G. Bastús
- Institut Català de Nanociència i Nanotecnologia (ICN2), Consejo Superior de Investigaciones Científicas (CSIC), The Barcelona Institute of Science and Technology (BIST), Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; (N.G.B.); (V.F.P.)
| | - Beatriz Pelaz
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, 15782 Santiago, Spain;
- Grupo de Física de Coloides y Polímeros, Departamento de Química Inorgánica, Universidade de Santiago de Compostela, 15782 Santiago, Spain
| | - Mahmoud G. Soliman
- Fachbereich Physik, CHyN, University of Hamburg, 22761 Hamburg, Germany; (M.G.S.); (W.J.P.)
| | - Victor F. Puntes
- Institut Català de Nanociència i Nanotecnologia (ICN2), Consejo Superior de Investigaciones Científicas (CSIC), The Barcelona Institute of Science and Technology (BIST), Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; (N.G.B.); (V.F.P.)
- Vall d’Hebron Research Institute (VHIR), 08035 Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain
| | - Wolfgang J. Parak
- Fachbereich Physik, CHyN, University of Hamburg, 22761 Hamburg, Germany; (M.G.S.); (W.J.P.)
| | - Jeroen L. A. Pennings
- Centre for Health Protection, National Institute for Public Health & the Environment, 3720 BA Bilthoven, The Netherlands; (J.P.V.); (E.G.E.H.); (K.K.); (J.L.A.P.)
| | - Inge Nelissen
- Health Unit, VITO NV, 2400 Mol, Belgium; (S.R.); (I.N.)
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16
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Barbero F, Mayall C, Drobne D, Saiz-Poseu J, Bastús NG, Puntes V. Formation and evolution of the nanoparticle environmental corona: The case of Au and humic acid. Sci Total Environ 2021; 768:144792. [PMID: 33736322 DOI: 10.1016/j.scitotenv.2020.144792] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 12/16/2020] [Accepted: 12/23/2020] [Indexed: 06/12/2023]
Abstract
Studying the behaviour of nanomaterials after their release into natural water is essential to understand the risk associated to their environmental exposure. In particular, the interaction and adsorption of dissolved organic matter onto nanoparticles strongly influence the behaviour and fate of nanomaterials in natural water systems. We herein study the interaction of Au and Ag nanoparticles and humic acids, the principal component of natural dissolved organic matter. Physicochemical characterization results showed the formation of an organic matter corona, consisting of two layers: a "hard" one, firmly bound to the nanoparticle surface, and a "soft" one, in dynamic equilibrium and, consequently, highly dependent on the media organic matter concentration. The extent of the electro-steric stabilization of the so called environmental corona depends on the size of the supramolecular association of humic acid (which depends on its hydrophilic and lipophilic moieties), the nanoparticle size, the total concentration of organic matter in the media, and the ratio between them. Interestingly, environmental coronas can eventually prevent Ca2+ and Mg2+ induced aggregation at concentrations range present in most of the freshwater bodies. The humic coating formed on top of the Au or control Ag nanoparticles presented a similar profile, but the corrodibility of Ag led to a more natural detachment of the corona. These results were further confirmed by exposing the nanoparticles to a model of natural water and standard mud (LUFA 2.2 dispersion). In the latter case, after several days, nanoparticle sedimentation was observed, which was attributed to interactions with macro organic and inorganic matter (fraction larger than particulate matter).
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Affiliation(s)
- Francesco Barbero
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain; Universitat Autònoma de Barcelona (UAB), Campus UAB, 08193, Bellaterra, Barcelona, Spain
| | - Craig Mayall
- Department of Biology, Biotechnical Faculty, University of Ljubljana, 111, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
| | - Damjana Drobne
- Department of Biology, Biotechnical Faculty, University of Ljubljana, 111, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
| | - Javier Saiz-Poseu
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Neus G Bastús
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Victor Puntes
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain; Universitat Autònoma de Barcelona (UAB), Campus UAB, 08193, Bellaterra, Barcelona, Spain; Vall d'Hebron Institut de Recerca (VHIR), 08035 Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA), P. Lluís Companys 23, 08010 Barcelona, Spain.
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17
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Kohl Y, Biehl M, Spring S, Hesler M, Ogourtsov V, Todorovic M, Owen J, Elje E, Kopecka K, Moriones OH, Bastús NG, Simon P, Dubaj T, Rundén-Pran E, Puntes V, William N, von Briesen H, Wagner S, Kapur N, Mariussen E, Nelson A, Gabelova A, Dusinska M, Velten T, Knoll T. Microfluidic In Vitro Platform for (Nano)Safety and (Nano)Drug Efficiency Screening. Small 2021; 17:e2006012. [PMID: 33458959 DOI: 10.1002/smll.202006012] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 12/18/2020] [Indexed: 06/12/2023]
Abstract
Microfluidic technology is a valuable tool for realizing more in vitro models capturing cellular and organ level responses for rapid and animal-free risk assessment of new chemicals and drugs. Microfluidic cell-based devices allow high-throughput screening and flexible automation while lowering costs and reagent consumption due to their miniaturization. There is a growing need for faster and animal-free approaches for drug development and safety assessment of chemicals (Registration, Evaluation, Authorisation and Restriction of Chemical Substances, REACH). The work presented describes a microfluidic platform for in vivo-like in vitro cell cultivation. It is equipped with a wafer-based silicon chip including integrated electrodes and a microcavity. A proof-of-concept using different relevant cell models shows its suitability for label-free assessment of cytotoxic effects. A miniaturized microscope within each module monitors cell morphology and proliferation. Electrodes integrated in the microfluidic channels allow the noninvasive monitoring of barrier integrity followed by a label-free assessment of cytotoxic effects. Each microfluidic cell cultivation module can be operated individually or be interconnected in a flexible way. The interconnection of the different modules aims at simulation of the whole-body exposure and response and can contribute to the replacement of animal testing in risk assessment studies in compliance with the 3Rs to replace, reduce, and refine animal experiments.
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Affiliation(s)
- Yvonne Kohl
- Fraunhofer Institute for Biomedical Engineering IBMT, Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Joseph-von-Fraunhofer-Weg 1, Sulzbach, 66280, Germany
| | - Margit Biehl
- Fraunhofer Institute for Biomedical Engineering IBMT, Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Joseph-von-Fraunhofer-Weg 1, Sulzbach, 66280, Germany
| | - Sarah Spring
- Fraunhofer Institute for Biomedical Engineering IBMT, Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Joseph-von-Fraunhofer-Weg 1, Sulzbach, 66280, Germany
| | - Michelle Hesler
- Fraunhofer Institute for Biomedical Engineering IBMT, Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Joseph-von-Fraunhofer-Weg 1, Sulzbach, 66280, Germany
| | - Vladimir Ogourtsov
- Tyndall National Institute, University College Cork, Dyke Parade, Cork, T12 R5CP, Ireland
| | - Miomir Todorovic
- Tyndall National Institute, University College Cork, Dyke Parade, Cork, T12 R5CP, Ireland
| | - Joshua Owen
- Institute of Thermofluids, School of Mechanical Engineering, University of Leeds, Leeds, LS2 9JT, UK
| | - Elisabeth Elje
- NILU-Norwegian Institute for Air Research, Department for Environmental Chemistry, Health Effects Laboratory, Instituttveien 18, Kjeller, 2007, Norway
- Faculty of Medicine, Institute of Basic Medical Sciences, Department of Molecular Medicine, University of Oslo, Sognsvannsveien 9, Oslo, 0372, Norway
| | - Kristina Kopecka
- Department of Nanobiology, Cancer Research Institute, Biomedical Research Center of the Slovak Academy of Sciences, Dubravska cesta 9, Bratislava, 84505, Slovakia
| | - Oscar Hernando Moriones
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC and BIST, Campus UAB, Bellaterra 08193, Barcelona, Spain
- Universitat Autònoma de Barcelona (UAB), Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - Neus G Bastús
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC and BIST, Campus UAB, Bellaterra 08193, Barcelona, Spain
| | - Peter Simon
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology SUT, Radlinskeho 9, Bratislava, 812 37, Slovakia
| | - Tibor Dubaj
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology SUT, Radlinskeho 9, Bratislava, 812 37, Slovakia
| | - Elise Rundén-Pran
- NILU-Norwegian Institute for Air Research, Department for Environmental Chemistry, Health Effects Laboratory, Instituttveien 18, Kjeller, 2007, Norway
| | - Victor Puntes
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC and BIST, Campus UAB, Bellaterra 08193, Barcelona, Spain
- Vall d'Hebron Institut de Recerca (VHIR), Barcelona, 08193, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, 08193, Spain
| | - Nicola William
- School of Chemistry, University of Leeds, Leeds, LS2 9JT, UK
| | - Hagen von Briesen
- Fraunhofer Institute for Biomedical Engineering IBMT, Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Joseph-von-Fraunhofer-Weg 1, Sulzbach, 66280, Germany
| | - Sylvia Wagner
- Fraunhofer Institute for Biomedical Engineering IBMT, Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Joseph-von-Fraunhofer-Weg 1, Sulzbach, 66280, Germany
| | - Nikil Kapur
- Institute of Thermofluids, School of Mechanical Engineering, University of Leeds, Leeds, LS2 9JT, UK
| | - Espen Mariussen
- NILU-Norwegian Institute for Air Research, Department for Environmental Chemistry, Health Effects Laboratory, Instituttveien 18, Kjeller, 2007, Norway
| | - Andrew Nelson
- School of Chemistry, University of Leeds, Leeds, LS2 9JT, UK
| | - Alena Gabelova
- Department of Nanobiology, Cancer Research Institute, Biomedical Research Center of the Slovak Academy of Sciences, Dubravska cesta 9, Bratislava, 84505, Slovakia
| | - Maria Dusinska
- NILU-Norwegian Institute for Air Research, Department for Environmental Chemistry, Health Effects Laboratory, Instituttveien 18, Kjeller, 2007, Norway
| | - Thomas Velten
- Fraunhofer Institute for Biomedical Engineering IBMT, Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Joseph-von-Fraunhofer-Weg 1, Sulzbach, 66280, Germany
| | - Thorsten Knoll
- Fraunhofer Institute for Biomedical Engineering IBMT, Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Joseph-von-Fraunhofer-Weg 1, Sulzbach, 66280, Germany
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18
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Alijagic A, Barbero F, Gaglio D, Napodano E, Benada O, Kofroňová O, Puntes VF, Bastús NG, Pinsino A. Gold nanoparticles coated with polyvinylpyrrolidone and sea urchin extracellular molecules induce transient immune activation. J Hazard Mater 2021; 402:123793. [PMID: 33254802 DOI: 10.1016/j.jhazmat.2020.123793] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 08/13/2020] [Accepted: 08/15/2020] [Indexed: 06/12/2023]
Abstract
We report that the immunogenicity of colloidal gold nanoparticles coated with polyvinylpyrrolidone (PVP-AuNPs) in a model organism, the sea urchin Paracentrotus lividus, can function as a proxy for humans for in vitro immunological studies. To profile the immune recognition and interaction from exposure to PVP-AuNPs (1 and 10 μg mL-1), we applied an extensive nano-scale approach, including particle physicochemical characterisation involving immunology, cellular biology, and metabolomics. The interaction between PVP-AuNPs and soluble proteins of the sea urchin physiological coelomic fluid (blood equivalent) results in the formation of a protein "corona" surrounding the NPs from three major proteins that influence the hydrodynamic size and colloidal stability of the particle. At the lower concentration of PVP-AuNPs, the P. lividus phagocytes show a broad metabolic plasticity based on the biosynthesis of metabolites mediating inflammation and phagocytosis. At the higher concentration of PVP-AuNPs, phagocytes activate an immunological response involving Toll-like receptor 4 (TLR4) signalling pathway at 24 hours of exposure. These results emphasise that exposure to PVP-AuNPs drives inflammatory signalling by the phagocytes and the resolution at both the low and high concentrations of the PVP-AuNPs and provides more details regarding the immunogenicity of these NPs.
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Affiliation(s)
- Andi Alijagic
- Consiglio Nazionale delle Ricerche, Istituto per la Ricerca e l'Innovazione Biomedica (IRIB), Palermo, Italy
| | - Francesco Barbero
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, Spain
| | - Daniela Gaglio
- Consiglio Nazionale delle Ricerche, Istituto di Bioimmagini e Fisiologia Molecolare (IBFM), Segrate, MI, Italy; SYSBIO.IT, Centre of Systems Biology, University of Milano-Bicocca, Milano, Italy
| | - Elisabetta Napodano
- SYSBIO.IT, Centre of Systems Biology, University of Milano-Bicocca, Milano, Italy
| | - Oldřich Benada
- Institute of Microbiology of the Czech Academy of Sciences, Prague, Czech Republic
| | - Olga Kofroňová
- Institute of Microbiology of the Czech Academy of Sciences, Prague, Czech Republic
| | - Victor F Puntes
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain; Vall d Hebron, Institut de Recerca (VHIR), Barcelona, Spain
| | - Neus G Bastús
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, Spain
| | - Annalisa Pinsino
- Consiglio Nazionale delle Ricerche, Istituto per la Ricerca e l'Innovazione Biomedica (IRIB), Palermo, Italy.
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19
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Boraschi D, Alijagic A, Auguste M, Barbero F, Ferrari E, Hernadi S, Mayall C, Michelini S, Navarro Pacheco NI, Prinelli A, Swart E, Swartzwelter BJ, Bastús NG, Canesi L, Drobne D, Duschl A, Ewart MA, Horejs-Hoeck J, Italiani P, Kemmerling B, Kille P, Prochazkova P, Puntes VF, Spurgeon DJ, Svendsen C, Wilde CJ, Pinsino A. Addressing Nanomaterial Immunosafety by Evaluating Innate Immunity across Living Species. Small 2020; 16:e2000598. [PMID: 32363795 DOI: 10.1002/smll.202000598] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 03/12/2020] [Accepted: 03/13/2020] [Indexed: 06/11/2023]
Abstract
The interaction of a living organism with external foreign agents is a central issue for its survival and adaptation to the environment. Nanosafety should be considered within this perspective, and it should be examined that how different organisms interact with engineered nanomaterials (NM) by either mounting a defensive response or by physiologically adapting to them. Herein, the interaction of NM with one of the major biological systems deputed to recognition of and response to foreign challenges, i.e., the immune system, is specifically addressed. The main focus is innate immunity, the only type of immunity in plants, invertebrates, and lower vertebrates, and that coexists with adaptive immunity in higher vertebrates. Because of their presence in the majority of eukaryotic living organisms, innate immune responses can be viewed in a comparative context. In the majority of cases, the interaction of NM with living organisms results in innate immune reactions that eliminate the possible danger with mechanisms that do not lead to damage. While in some cases such interaction may lead to pathological consequences, in some other cases beneficial effects can be identified.
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Affiliation(s)
- Diana Boraschi
- Institute of Biochemistry and Cell Biology, National Research Council, Napoli, 80131, Italy
| | - Andi Alijagic
- Institute for Biomedical Research and Innovation, National Research Council, Palermo, 90146, Italy
| | - Manon Auguste
- Department of Earth, Environment and Life Sciences, University of Genova, Genova, 16126, Italy
| | - Francesco Barbero
- Institut Català de Nanosciència i Nanotecnologia (ICN2), Bellaterra, Barcelona, 08193, Spain
| | - Eleonora Ferrari
- Center for Plant Molecular Biology - ZMBP, Eberhard-Karls University Tübingen, Tübingen, 72076, Germany
| | - Szabolcs Hernadi
- School of Biosciences, Cardiff University, Cardiff, CF10 3AX, UK
| | - Craig Mayall
- Department of Biology, Biotechnical Faculty, University of Liubljana, Ljubljana, 1000, Slovenia
| | - Sara Michelini
- Department of Biosciences, Paris-Lodron University Salzburg, Salzburg, 5020, Austria
| | | | | | - Elmer Swart
- UK Centre for Ecology and Hydrology, Wallingford, OX10 8BB, UK
| | | | - Neus G Bastús
- Institut Català de Nanosciència i Nanotecnologia (ICN2), Bellaterra, Barcelona, 08193, Spain
| | - Laura Canesi
- Department of Earth, Environment and Life Sciences, University of Genova, Genova, 16126, Italy
| | - Damjana Drobne
- Department of Biology, Biotechnical Faculty, University of Liubljana, Ljubljana, 1000, Slovenia
| | - Albert Duschl
- Department of Biosciences, Paris-Lodron University Salzburg, Salzburg, 5020, Austria
| | | | - Jutta Horejs-Hoeck
- Department of Biosciences, Paris-Lodron University Salzburg, Salzburg, 5020, Austria
| | - Paola Italiani
- Institute of Biochemistry and Cell Biology, National Research Council, Napoli, 80131, Italy
| | - Birgit Kemmerling
- Center for Plant Molecular Biology - ZMBP, Eberhard-Karls University Tübingen, Tübingen, 72076, Germany
| | - Peter Kille
- School of Biosciences, Cardiff University, Cardiff, CF10 3AX, UK
| | - Petra Prochazkova
- Institute of Microbiology of the Czech Academy of Sciences, Prague, 142 20, Czech Republic
| | - Victor F Puntes
- Institut Català de Nanosciència i Nanotecnologia (ICN2), Bellaterra, Barcelona, 08193, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, 08010, Spain
- Vall d Hebron, Institut de Recerca (VHIR), Barcelona, 08035, Spain
| | | | - Claus Svendsen
- UK Centre for Ecology and Hydrology, Wallingford, OX10 8BB, UK
| | | | - Annalisa Pinsino
- Institute for Biomedical Research and Innovation, National Research Council, Palermo, 90146, Italy
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20
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Barbero F, Moriones OH, Bastús NG, Puntes V. Dynamic Equilibrium in the Cetyltrimethylammonium Bromide-Au Nanoparticle Bilayer, and the Consequent Impact on the Formation of the Nanoparticle Protein Corona. Bioconjug Chem 2019; 30:2917-2930. [PMID: 31621309 DOI: 10.1021/acs.bioconjchem.9b00624] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Nanoparticles in ionic solutions are usually surrounded by stabilizing molecules that avoid aggregation and determine their surface properties, which strongly influence their behavior. The present work aims to shed light on the static vs dynamic nature of the cetyltrimethylammonium bromide (CTAB) bilayer on gold nanoparticles and to understand its effects on nanoparticle evolution in biological systems. A systematic study of the CTAB bilayer of Au nanorods and nanospheres was carried out, exploring the role of excess free surfactant in solution on the surface properties of nanoparticles and their colloidal stability. The results indicated the presence of a CTAB bilayer in which the external layer was in rapid dynamic equilibrium with the free surfactant in solution. The internal surfactant layer of the gold nanospheres was also found to be in dynamic equilibrium. Conversely, the gold nanorods had a permanent internal layer. Consequently, the CTAB-nanoparticle dispersions always contained free CTAB in excess to maintain the colloidal stability of the NPs. In contrast, decreasing the free CTAB concentration resulted in nanoparticle aggregation. The impact of the dynamic equilibrium on the exposure of particles to biological fluids and on the formation of the nanoparticle protein corona was studied, revealing the different fates of the nanoparticles, which depended on the amount of free CTAB in solution.
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Affiliation(s)
- Francesco Barbero
- Catalan Institute of Nanoscience and Nanotechnology (ICN2) , CSIC and BIST, Campus UAB, 08193 Bellaterra , Barcelona , Spain.,Universitat Autònoma de Barcelona (UAB) , Campus UAB, 08193 Bellaterra , Barcelona , Spain
| | - Oscar H Moriones
- Catalan Institute of Nanoscience and Nanotechnology (ICN2) , CSIC and BIST, Campus UAB, 08193 Bellaterra , Barcelona , Spain.,Universitat Autònoma de Barcelona (UAB) , Campus UAB, 08193 Bellaterra , Barcelona , Spain
| | - Neus G Bastús
- Catalan Institute of Nanoscience and Nanotechnology (ICN2) , CSIC and BIST, Campus UAB, 08193 Bellaterra , Barcelona , Spain
| | - Victor Puntes
- Catalan Institute of Nanoscience and Nanotechnology (ICN2) , CSIC and BIST, Campus UAB, 08193 Bellaterra , Barcelona , Spain.,Universitat Autònoma de Barcelona (UAB) , Campus UAB, 08193 Bellaterra , Barcelona , Spain.,Vall d'Hebron Institut de Recerca (VHIR) , 08035 Barcelona , Spain.,Institució Catalana de Recerca i Estudis Avançats (ICREA) , P. Lluís Companys 23 , 08010 Barcelona , Spain
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21
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Arribas Perez M, Moriones OH, Bastús NG, Puntes V, Nelson A, Beales PA. Mechanomodulation of Lipid Membranes by Weakly Aggregating Silver Nanoparticles. Biochemistry 2019; 58:4761-4773. [DOI: 10.1021/acs.biochem.9b00390] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marcos Arribas Perez
- School of Chemistry, University of Leeds, Leeds LS2 9JT, U.K
- Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, U.K
| | - Oscar H. Moriones
- Institut Català de Nanociència y Nanotecnologia (ICN2), Campus UAB, 08193 Bellaterra, Barcelona, Spain
- Universitat Autonòma de Barcelona (UAB), Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Neus G. Bastús
- Institut Català de Nanociència y Nanotecnologia (ICN2), Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Victor Puntes
- Institut Català de Nanociència y Nanotecnologia (ICN2), Campus UAB, 08193 Bellaterra, Barcelona, Spain
- Universitat Autonòma de Barcelona (UAB), Campus UAB, 08193 Bellaterra, Barcelona, Spain
- Vall d’Hebron Institut de Recerca (VHIR), 08035 Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain
| | - Andrew Nelson
- School of Chemistry, University of Leeds, Leeds LS2 9JT, U.K
| | - Paul A. Beales
- School of Chemistry, University of Leeds, Leeds LS2 9JT, U.K
- Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, U.K
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22
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Tran TA, Hesler M, Moriones OH, Jimeno-Romero A, Fischer B, Bastús NG, Puntes V, Wagner S, Kohl YL, Gentile L. Assessment of iron oxide nanoparticle ecotoxicity on regeneration and homeostasis in the replacement model system Schmidtea mediterranea. ALTEX 2019; 36:583-596. [PMID: 31026038 DOI: 10.14573/altex.1902061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 04/16/2019] [Indexed: 11/23/2022]
Abstract
Iron oxide nanoparticles (IONs) are used in a number of applications, from food to cosmetics, from medical applications to magnetic storage. In spite of the 550 tons produced each year in Europe alone, no effective dose limit recommendations are established and the overall risks connected to IONs are still debated. The incorporation of IONs in daily life raises a concern about their effects on the environment, on living organisms, and on human health. In this study, we used freshwater planarians to assess the nanoecotoxicity of IONs. Planarians are free-living invertebrates known for their astonishing regenerative ability. Because of their sensitivity to toxicants, they are often used to determine the effects of toxic, genotoxic and carcinogenic environmental compounds with an approach in line with the 3Rs (Reduce, Refine, Replace) principle. Planarians were exposed to IONs at concentrations up to 1 mg/mL and their effects were evaluated at the behavioral, morphofunctional and molecular levels, with a special emphasis on the regeneration process. Our results indicate that IONs did not affect the stem cell population dynamics, nor did they induce substantial changes in either homeostatic or regenerating planarians. As positive controls, gold nanoparticles coated with the pro-apoptotic anti-cancer drug hexadecylmethylammonium bromide, silver nanoparticles and highly concentrated polystyrene nanoparticles were used. These all elicited toxic effects. Therefore, we conclude that IONs at environmental concentrations are safe for planarians, and that the planarian is a powerful model system that can replace vertebrate animal models in nanoecotoxicology research and for nanoecotoxicology studies.
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Affiliation(s)
- Thao A Tran
- Fraunhofer Institute for Biomedical Engineering IBMT, Sulzbach, Germany
| | - Michelle Hesler
- Fraunhofer Institute for Biomedical Engineering IBMT, Sulzbach, Germany
| | - Oscar H Moriones
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC, Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Alba Jimeno-Romero
- Fraunhofer Institute for Biomedical Engineering IBMT, Sulzbach, Germany.,Research Centre for Experimental Marine biology and Biotechnology, University of the Basque Country, Plentzia, Spain
| | - Benjamin Fischer
- Fraunhofer Institute for Biomedical Engineering IBMT, Sulzbach, Germany
| | - Neus G Bastús
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC, Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Victor Puntes
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC, Barcelona Institute of Science and Technology (BIST), Barcelona, Spain.,Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain.,Vall d`Hebron Institut de Recerca (VHIR), Barcelona, Spain
| | - Sylvia Wagner
- Fraunhofer Institute for Biomedical Engineering IBMT, Sulzbach, Germany
| | - Yvonne L Kohl
- Fraunhofer Institute for Biomedical Engineering IBMT, Sulzbach, Germany
| | - Luca Gentile
- Fraunhofer Institute for Biomedical Engineering IBMT, Sulzbach, Germany.,Current addresses: Hasselt University, Campus Diepenbeck, Diepenbeck, Belgium; University of Applied Sciences Kaiserslautern, Campus Zweibrücken, Zweibruecken, Germany; INSERM - University of Strasbourg, Strasbourg, France
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23
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Abstract
Background:
Nanosafety aims for a solution through the safer design (and re-design) of
nanostructured materials, optimizing both performance and safety, by resolving which structural features
lead to the desired properties and modifying them to avoid their detrimental effects without losing
their desired nanoscale properties in the process. Starting with known toxic NPs, the final aim
should be the re-design of such detrimental specific NP characteristics and to redefine the way they
should be manipulated from the beginning to the end of their life cycle.
Methods:
The researchers reviewed literature in the area of novel nanosafety strategies addressing the
“safe-by-design” paradigm.
Results:
The potential hazards of engineered NPs are not only determined by the physicochemical
properties of the engineered NPs per se but also on the interactions of these NPs with immediate surrounding
environments. The aim of promoting the timely and safe development of NPs cannot be
achieved via traditional studies as they address one material at one time. The development of a safer
design strategy of engineered NPs requires an understanding of both intrinsic (synthetic) properties
together with their extrinsic responses to external stimuli.
Conclusions:
We have summarized recent developments of novel nanosafety strategies addressing the
“safe-by-design” paradigm for optimizing both performance and safety, allowing the comparison of
results of different studies and ultimately providing guidelines for the re-design of safer NPs. The resulting
discussion is intended to provide guidelines for synthetic nanochemists on how to design NPs
to be safe during their full life cycle while maintaining their parental desired properties.
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Affiliation(s)
- Neus G. Bastús
- Institut Catala de Nanociencia i Nanotecnologia (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST), Campus UAB, 08193, Bellaterra, Barcelona, Spain
| | - Víctor Puntes
- Institut Catala de Nanociencia i Nanotecnologia (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST), Campus UAB, 08193, Bellaterra, Barcelona, Spain
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24
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Avci C, Yazdi A, Tarrés M, Bernoud E, Bastús NG, Puntes V, Imaz I, Ribas X, Maspoch D. Sequential Deconstruction-Reconstruction of Metal-Organic Frameworks: An Alternative Strategy for Synthesizing (Multi)-Layered ZIF Composites. ACS Appl Mater Interfaces 2018; 10:23952-23960. [PMID: 29931972 DOI: 10.1021/acsami.8b05098] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Here, we report the synthesis of (multi)-layered zeolitic imidazolate framework (ZIF-8/-67) composite particles via a sequential deconstruction-reconstruction process. We show that this process can be applied to construct ZIF-8-on-ZIF-67 composite particles whose cores are the initially etched particles. In addition, we demonstrate that introduction of functional inorganic nanoparticles (INPs) onto the crystal surface of etched particles does not disrupt ZIF particle reconstruction, opening new avenues for designing (multi)-layered ZIF-on-INP-on-ZIF composite particles comprising more than one class of inorganic nanoparticles. In these latter composites, the location of the inorganic nanoparticles inside each single metal-organic framework particle as well as of their separation at the nanoscale (20 nm) is controlled. Preliminary results show that (multi)-layered ZIF-on-INP-on-ZIF composite particles comprising a good sequence of inorganic nanoparticles can potentially catalyze cascade reactions.
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Affiliation(s)
- Civan Avci
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, and The Barcelona Institute of Science and Technology , Campus UAB , Bellaterra, Barcelona 08193 , Spain
| | - Amirali Yazdi
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, and The Barcelona Institute of Science and Technology , Campus UAB , Bellaterra, Barcelona 08193 , Spain
| | - Màrius Tarrés
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química , Universitat de Girona , Campus Montilivi , Girona E-17071 , Catalonia , Spain
| | - Elise Bernoud
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química , Universitat de Girona , Campus Montilivi , Girona E-17071 , Catalonia , Spain
| | - Neus G Bastús
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, and The Barcelona Institute of Science and Technology , Campus UAB , Bellaterra, Barcelona 08193 , Spain
| | - Victor Puntes
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, and The Barcelona Institute of Science and Technology , Campus UAB , Bellaterra, Barcelona 08193 , Spain
- ICREA , Pg. Lluís Companys 23 , Barcelona 08010 , Spain
| | - Inhar Imaz
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, and The Barcelona Institute of Science and Technology , Campus UAB , Bellaterra, Barcelona 08193 , Spain
| | - Xavi Ribas
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química , Universitat de Girona , Campus Montilivi , Girona E-17071 , Catalonia , Spain
| | - Daniel Maspoch
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, and The Barcelona Institute of Science and Technology , Campus UAB , Bellaterra, Barcelona 08193 , Spain
- ICREA , Pg. Lluís Companys 23 , Barcelona 08010 , Spain
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25
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Piella J, Bastús NG, Puntes V. Modeling the Optical Responses of Noble Metal Nanoparticles Subjected to Physicochemical Transformations in Physiological Environments: Aggregation, Dissolution and Oxidation. ACTA ACUST UNITED AC 2016. [DOI: 10.1515/zpch-2016-0874] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Abstract
Herein, we study how optical properties of colloidal dispersions of noble metal nanoparticles (Au and Ag) are affected by processes such as aggregation and oxidative dissolution. The optical contributions of these processes to the extinction spectra in the UV-vis region are often overlapped, making difficult its interpretation. In this regard, modeling the UV-vis spectra (in particular absorbance curve, peaks position, intensity and full width at half maximum -FWHM) of each process separately offers a powerful tool to identify the transformation of NPs under relevant and complex scenarios, such as in biological media. The proper identification of these transformations is crucial to understand the biological effects of the NPs.
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Affiliation(s)
- Jordi Piella
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST), Campus UAB, 08193, Bellaterra, Barcelona, Spain
- Universitat Autònoma de Barcelona, Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Neus G. Bastús
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST), Campus UAB, 08193, Bellaterra, Barcelona, Spain
| | - Víctor Puntes
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST), Campus UAB, 08193, Bellaterra, Barcelona, Spain
- Vall d‘Hebron Institut de Recerca (VHIR), 08035, Barcelona, Spain
- Institut Català de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain
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26
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Bastús NG, Piella J, Puntes V. Quantifying the Sensitivity of Multipolar (Dipolar, Quadrupolar, and Octapolar) Surface Plasmon Resonances in Silver Nanoparticles: The Effect of Size, Composition, and Surface Coating. Langmuir 2016; 32:290-300. [PMID: 26649600 DOI: 10.1021/acs.langmuir.5b03859] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The effect of composition, size, and surface coating on the sensitivity of localized multipolar surface plasmon resonances has been spectroscopically investigated in high-quality silver colloidal solutions with precisely controlled sizes from 10 to 220 nm and well-defined surface chemistry. Surface plasmon resonance modes have been intensively characterized, identifying the size-dependence of dipolar, quadrupolar, and octapolar modes. Modifications of the NP's surface chemistry revealed the higher sensitivity of large sizes, long molecules, thiol groups, and low-order resonance modes. We also extend this study to gold nanoparticles, aiming to compare the sensitivity of both materials, quantifying the higher sensitivity of silver.
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Affiliation(s)
- Neus G Bastús
- Institut Català de Nanociència i Nanotecnologia (ICN2) , Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Jordi Piella
- Institut Català de Nanociència i Nanotecnologia (ICN2) , Campus UAB, 08193 Bellaterra, Barcelona, Spain
- Universitat Autònoma de Barcelona (UAB) , Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Víctor Puntes
- Institut Català de Nanociència i Nanotecnologia (ICN2) , Campus UAB, 08193 Bellaterra, Barcelona, Spain
- Institut Català de Recerca i Estudis Avançats (ICREA) , 08010 Barcelona, Spain
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27
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Patarroyo J, Genç A, Arbiol J, Bastús NG, Puntes V. One-pot polyol synthesis of highly monodisperse short green silver nanorods. Chem Commun (Camb) 2016; 52:10960-3. [DOI: 10.1039/c6cc04796c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
High yield production of green silver nanorods of a low aspect ratio via an optimized one-pot polyol method using tannic acid at substoichiometric concentrations.
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Affiliation(s)
- Javier Patarroyo
- Catalan Institute of Nanoscience and Nanotechnology (ICN2)
- CSIC and The Barcelona Institute of Science and Technology (BIST)
- Bellaterra
- Spain
- Universitat Autònoma de Barcelona (UAB)
| | - Aziz Genç
- Catalan Institute of Nanoscience and Nanotechnology (ICN2)
- CSIC and The Barcelona Institute of Science and Technology (BIST)
- Bellaterra
- Spain
- Department of Metallurgy and Materials Engineering
| | - Jordi Arbiol
- Catalan Institute of Nanoscience and Nanotechnology (ICN2)
- CSIC and The Barcelona Institute of Science and Technology (BIST)
- Bellaterra
- Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA)
| | - Neus G. Bastús
- Catalan Institute of Nanoscience and Nanotechnology (ICN2)
- CSIC and The Barcelona Institute of Science and Technology (BIST)
- Bellaterra
- Spain
| | - Victor Puntes
- Catalan Institute of Nanoscience and Nanotechnology (ICN2)
- CSIC and The Barcelona Institute of Science and Technology (BIST)
- Bellaterra
- Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA)
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28
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Schulz F, Homolka T, Bastús NG, Puntes V, Weller H, Vossmeyer T. Little adjustments significantly improve the Turkevich synthesis of gold nanoparticles. Langmuir 2014; 30:10779-84. [PMID: 25127436 DOI: 10.1021/la503209b] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
In this report, we show how the classical and widely used Turkevich synthesis can be improved significantly by simple adjustments. The gold nanoparticles (AuNPs) produced with the optimized protocol have a much narrower size distribution (5-8% standard deviation), and their diameters can be reproduced with unrivaled little variation (<3%). Moreover, large volumes of these particles can be produced in one synthesis; we routinely synthesize 1000 mL of ∼3.5 nM AuNPs. The key features of the improved protocol are the control of the pH by using a citrate buffer instead of a citrate solution as the reducing agent or stabilizer and optimized mixing of reagents. Further, the shape uniformity of the particles can be improved by addition of 0.02 mM EDTA. While the proposed protocol is as straightforward as the original Turkevich protocol, it is more tolerant against variations in precursor concentration.
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Affiliation(s)
- Florian Schulz
- Institute for Physical Chemistry, University of Hamburg , Grindelallee 117, 20146 Hamburg, Germany
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29
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Schmidtke C, Kloust H, Bastús NG, Merkl JP, Tran H, Flessau S, Feld A, Schotten T, Weller H. A general route towards well-defined magneto- or fluorescent-plasmonic nanohybrids. Nanoscale 2013; 5:11783-11794. [PMID: 24121254 DOI: 10.1039/c3nr04155g] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Herein, we present a general route towards defined nanohybrids, comprised of a fluorescent quantum dot (QD) or superparamagnetic iron oxide (Fe2O3) nanocrystal core and a tuneable corona of plasmonic gold or silver nanoparticles (NPs), adhered by a cross-linked poly(isoprene)-b-poly(ethylene glycol) diblock copolymer (PI-b-PEG) matrix. To this end, the PEG-terminus of the amphiphilic polymer was acylated with lipoic acid (LA), which, as is known, forms quasi-covalent Au-thiol- or Ag-thiol-bonds. Surprisingly, by variation of the ratio of the different NPs, inverse core/satellite structures bearing QDs or Fe2O3 around a metallic NP core were obtained. Furthermore, gold NPs or even closed gold shells were grown by in situ reductive deposition of Au(3+) ions on Fe2O3 NP seeds. Finally, in order to demonstrate the scope of the method, ternary nanohybrids, composed of QDs, Fe2O3 and Au NPs, were accomplished. All magneto-plasmonic and fluorescent-plasmonic materials were thoroughly characterized by absorption and emission spectroscopy, TEM and TEM-EDX. Antibody conjugation to these novel nanohybrids proved their practical utility in a prototype immunoassay.
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Affiliation(s)
- Christian Schmidtke
- Institute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany.
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30
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Schulz F, Lutz D, Rusche N, Bastús NG, Stieben M, Höltig M, Grüner F, Weller H, Schachner M, Vossmeyer T, Loers G. Gold nanoparticles functionalized with a fragment of the neural cell adhesion molecule L1 stimulate L1-mediated functions. Nanoscale 2013; 5:10605-10617. [PMID: 24056775 DOI: 10.1039/c3nr02707d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The neural cell adhesion molecule L1 is involved in nervous system development and promotes regeneration in animal models of acute and chronic injury of the adult nervous system. To translate these conducive functions into therapeutic approaches, a 22-mer peptide that encompasses a minimal and functional L1 sequence of the third fibronectin type III domain of murine L1 was identified and conjugated to gold nanoparticles (AuNPs) to obtain constructs that interact homophilically with the extracellular domain of L1 and trigger the cognate beneficial L1-mediated functions. Covalent conjugation was achieved by reacting mixtures of two cysteine-terminated forms of this L1 peptide and thiolated poly(ethylene) glycol (PEG) ligands (~2.1 kDa) with citrate stabilized AuNPs of two different sizes (~14 and 40 nm in diameter). By varying the ratio of the L1 peptide-PEG mixtures, an optimized layer composition was achieved that resulted in the expected homophilic interaction of the AuNPs. These AuNPs were stable as tested over a time period of 30 days in artificial cerebrospinal fluid and interacted with the extracellular domain of L1 on neurons and Schwann cells, as could be shown by using cells from wild-type and L1-deficient mice. In vitro, the L1-derivatized particles promoted neurite outgrowth and survival of neurons from the central and peripheral nervous system and stimulated Schwann cell process formation and proliferation. These observations raise the hope that, in combination with other therapeutic approaches, L1 peptide-functionalized AuNPs may become a useful tool to ameliorate the deficits resulting from acute and chronic injuries of the mammalian nervous system.
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Affiliation(s)
- Florian Schulz
- Institut für Physikalische Chemie, Universität Hamburg, Grindelallee 117, 20146 Hamburg, Germany.
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31
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Schmidtke C, Pöselt E, Ostermann J, Pietsch A, Kloust H, Tran H, Schotten T, Bastús NG, Eggers R, Weller H. Amphiphilic, cross-linkable diblock copolymers for multifunctionalized nanoparticles as biological probes. Nanoscale 2013; 5:7433-7444. [PMID: 23831679 DOI: 10.1039/c3nr01520c] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Nanoparticles (NPs) play an increasingly important role in biological labeling and imaging applications. However, preserving their useful properties in an aqueous biological environment remains challenging, even more as NPs therein have to be long-time stable, biocompatible and nontoxic. For in vivo applications, size control is crucial in order to route excretion pathways, e.g. renal clearance vs. hepato-biliary accumulation. Equally necessary, cellular and tissue specific targeting demands suitable linker chemistry for surface functionalization with affinity molecules, like peptides, proteins, carbohydrates and nucleotides. Herein, we report a three stage encapsulation process for NPs comprised of (1) a partial ligand exchange by a multidentate polyolefinic amine ligand, PI-N3, (2) micellar encapsulation with a precisely tuned amphiphilic diblock PI-b-PEG copolymer, in which the PI chains intercalate to the PI-N3 prepolymer and (3) radical cross-linking of the adjacent alkenyl bonds. As a result, water-soluble NPs were obtained, which virtually maintained their primal physical properties and were exceptionally stable in biological media. PEG-terminal functionalization of the diblock PI-b-PEG copolymer with numerous functional groups was mostly straightforward by chain termination of the living anionic polymerization (LAP) with the respective reagents. More complex affinity ligands, e.g. carbohydrates or biotin, were introduced in a two-step process, prior to micellar encapsulation. Advantageously, this pre-assembly approach opens up rapid access to precisely tuned multifunctional NPs, just by using mixtures of diverse functional PI-b-PEG polymers in a combinatorial manner. All constructs showed no toxicity from 0.001 to 1 μM (particle concentration) in standard WST and LDH assays on A549 cells, as well as only marginal unspecific cellular uptake, even in serum-free medium.
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Affiliation(s)
- Christian Schmidtke
- Institute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany.
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32
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Schulz F, Vossmeyer T, Bastús NG, Weller H. Effect of the spacer structure on the stability of gold nanoparticles functionalized with monodentate thiolated poly(ethylene glycol) ligands. Langmuir 2013; 29:9897-908. [PMID: 23829571 DOI: 10.1021/la401956c] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Poly(ethylene glycol)- (PEG-) based ligands are well-established for the stabilization of nanoparticles in aqueous solution and are especially interesting for applications in medicine and biotechnology because they are known to improve the pharmacokinetic properties of nanomaterials. In this study, we prepared gold nanoparticles (AuNPs) with ligand shells of different monodentate poly(ethylene glycol)-thiol (PEG-SH) ligands. These ligands differed only in the segment connecting the thiol group with the PEG moiety (Mw ≈ 2000 g/mol) through an ester bond, the spacer. All ligands were synthesized by straightforward esterification. Specifically, we used PEG ligands with a long (C10, PEGMUA) or short (C2, PEGMPA) alkylene spacer or a phenylene (PEGMPAA) spacer. The influence of the spacer on the stability of gold nanoparticle-PEG conjugates (AuNP@PEG) was tested by cyanide etching experiments, electrolyte-induced aggregation, and competitive ligand displacement with dithiothreitol (DTT). In the presence of 100 mM cyanide, AuNPs stabilized with PEGMPA or PEGMPAA were completely dissolved by oxidative etching within a few minutes, whereas AuNPs stabilized with PEGMUA needed more than 20 h to be completely etched. By complementary experiments, we deduced a simplified description for the etching process that takes into account the role of excess ligand. In the presence of free ligand, significantly fewer AuNPs are etched, suggesting a competition of etching and ligand binding to AuNPs. We also compared the stabilizing effect of PEGMUA with that of a bidentate PEG-thiol ligand (PEGLIP) and found a reversed stability against cyanide etching and DTT displacement, in agreement with previously reported observations. Our results clearly demonstrate the strong impact of the spacer structure on conjugate stability and provide valuable information for the rational design of more complex AuNP@PEG conjugates, which are of much interest in the context of biotechnology and medical applications.
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Affiliation(s)
- Florian Schulz
- Institute for Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
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33
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Kloust H, Schmidtke C, Feld A, Schotten T, Eggers R, Fittschen UEA, Schulz F, Pöselt E, Ostermann J, Bastús NG, Weller H. In situ functionalization and PEO coating of iron oxide nanocrystals using seeded emulsion polymerization. Langmuir 2013; 29:4915-4921. [PMID: 23530830 DOI: 10.1021/la400713p] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Herein we demonstrate that seeded emulsion polymerization is a powerful tool to produce multiply functionalized PEO coated iron oxide nanocrystals. Advantageously, by simple addition of functional surfactants, functional monomers, or functional polymerizable linkers-solely or in combinations thereof-during the seeded emulsion polymerization process, a broad range of in situ functionalized polymer-coated iron oxide nanocrystals were obtained. This was demonstrated by purposeful modulation of the zeta potential of encapsulated iron oxide nanocrystals and conjugation of a dyestuff. Successful functionalization was unequivocally proven by TXRF. Furthermore, the spatial position of the functional groups can be controlled by choosing the appropriate spacers. In conclusion, this methodology is highly amenable for combinatorial strategies and will spur rapid expedited synthesis and purposeful optimization of a broad scope of nanocrystals.
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Affiliation(s)
- Hauke Kloust
- Institute of Physical Chemistry, University of Hamburg, Hamburg, Germany
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34
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Lange H, Juárez BH, Carl A, Richter M, Bastús NG, Weller H, Thomsen C, von Klitzing R, Knorr A. Tunable plasmon coupling in distance-controlled gold nanoparticles. Langmuir 2012; 28:8862-6. [PMID: 22416809 DOI: 10.1021/la3001575] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Plasmons are resonant excitations in metallic films and nanoparticles. For small enough static distances of metal nanoparticles, additional plasmon-coupled modes appear as a collective excitation between the nanoparticles. Here we show, by combining poly(N-isopropylacrylamide) micro- and nanospheres and Au nanoparticles, how to design a system that allows controllably and reversibly switching on and off, and tuning the plasmon-coupled mode.
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Affiliation(s)
- Holger Lange
- Institut für Festkörperphysik, Technische Universität Berlin, Hardenbergstr. 36, 10623, Berlin, Germany.
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35
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Hormeño S, Bastús NG, Pietsch A, Weller H, Arias-Gonzalez JR, Juárez BH. Plasmon-exciton interactions on single thermoresponsive platforms demonstrated by optical tweezers. Nano Lett 2011; 11:4742-4747. [PMID: 22003895 DOI: 10.1021/nl202560j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Optical and hydrodynamic-size studies on single bare thermo-responsive microspheres, and microspheres covered either with Au nanoparticles, CdSe/CdS quantum dots, or a combination of both have been performed by optical tweezers. The photothermal heating of water in the focal region boosts the shrinkage of the microspheres, an effect that is intensified in the presence of Au nanoparticles. In contrast, bigger microspheres are measured when they are covered with quantum dots. Plasmon-exciton interactions are observable in the trap in the combined Au and quantum dots hybrid systems.
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Affiliation(s)
- Silvia Hormeño
- IMDEA Nanoscience, Campus de Cantoblanco 28049, Madrid, Spain
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36
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Bastús NG, Comenge J, Puntes V. Kinetically controlled seeded growth synthesis of citrate-stabilized gold nanoparticles of up to 200 nm: size focusing versus Ostwald ripening. Langmuir 2011; 27:11098-105. [PMID: 21728302 DOI: 10.1021/la201938u] [Citation(s) in RCA: 884] [Impact Index Per Article: 68.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Monodisperse citrate-stabilized gold nanoparticles with a uniform quasi-spherical shape of up to ∼200 nm and a narrow size distribution were synthesized following a kinetically controlled seeded growth strategy via the reduction of HAuCl(4) by sodium citrate. The inhibition of any secondary nucleation during homogeneous growth was controlled by adjusting the reaction conditions: temperature, gold precursor to seed particle concentration, and pH. This method presents improved results regarding the traditional Frens method in several aspects: (i) it produces particles of higher monodispersity; (ii) it allows better control of the gold nanoparticle size and size distribution; and (iii) it leads to higher concentrations. Gold nanoparticles synthesized following this method can be further functionalized with a wide variety of molecules, hence this method appears to be a promising candidate for application in the fields of biomedicine, photonics, and electronics, among others.
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Affiliation(s)
- Neus G Bastús
- Institut Català de Nanotecnologia (ICN), Campus UAB, 08193 Bellaterra, Barcelona, Spain.
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37
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Amigo JM, Bastús NG, Hoen R, Vázquez-Campos S, Varón M, Royo M, Puntes V. Analysis of time-dependent conjugation of gold nanoparticles with an antiparkinsonian molecule by using curve resolution methods. Anal Chim Acta 2010; 683:170-7. [PMID: 21167967 DOI: 10.1016/j.aca.2010.10.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2010] [Revised: 10/11/2010] [Accepted: 10/12/2010] [Indexed: 11/27/2022]
Abstract
In this work, the time-dependent conjugation process between a thiolated molecule (with anti-parkinsonian properties) and gold nanoparticles has been monitored and studied by the combined use of fast acquisition Ultra Violet-Visible (UV-Vis) spectra and the ability of Multivariate Curve Resolution-Alternating Least Squares (MCR-ALS) technique. From the highly informative kinetic profiles obtained it was possible to extract quantitative and qualitative information of the conjugation process which includes i) time-dependent concentration profiles and pure spectra of species involved on conjugation process, ii) estimation of molecule concentration necessary for the completeness of the conjugation reaction, iii) molecule footprint and iv) free energy of molecule adsorption.
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Affiliation(s)
- José Manuel Amigo
- Department of Food Science, Quality & Technology, Faculty of Life Sciences, University of Copenhagen, Rolighedsvej 30, DK-1958 Copenhagen, Frederiksberg C, Denmark.
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Abstract
The immune system is the responsible for body integrity and the prevention of external invasion. In principle, the immune system has not been evolutionarily trained to respond against inorganic engineered nanoparticles (NPs). However, how it will react against them will determine developments on the use of NPs as medical devices and their toxicological impact on human and environmental health. Initial observations show a broad range of results as a function of size, shape, concentration and surface state of NPs, and a variety of immune responses from absent to acute inflammation. In particular for the case of NP, the composition of the material, which strongly influences its physical properties, appears not to be the main determining factor for their behavior in biological environments as compared to surface state or size.
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Bastús NG, Casals E, Vázquez-Campos S, Puntes V. Reactivity of engineered inorganic nanoparticles and carbon nanostructures in biological media. Nanotoxicology 2009. [DOI: 10.1080/17435390802217830] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Bastús NG, Sánchez-Tilló E, Pujals S, Farrera C, López C, Giralt E, Celada A, Lloberas J, Puntes V. Homogeneous conjugation of peptides onto gold nanoparticles enhances macrophage response. ACS Nano 2009; 3:1335-44. [PMID: 19489561 DOI: 10.1021/nn8008273] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Murine bone marrow macrophages were able to recognize gold nanoparticle peptide conjugates, while peptides or nanoparticles alone were not recognized. Consequently, in the presence of conjugates, macrophage proliferation was stopped and pro-inflammatory cytokines such as TNF-alpha, IL-1beta, and IL-6, as well as nitric oxide synthase (NOS2) were induced. Furthermore, macrophage activation by gold nanoparticles conjugated to different peptides appeared to be rather independent of peptide length and polarity, but dependent on peptide pattern at the nanoparticle surface. Correspondingly, the biochemical type of response also depended on the type of conjugated peptide and could be correlated with the degree of ordering in the peptide coating. These findings help to illustrate the basic requirements involved in medical nanoparticle conjugate design to either activate the immune system or hide from it in order to reach their targets before being removed by phagocytes.
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Affiliation(s)
- Neus G Bastús
- Institut Catala de Nanotecnologia, Campus UAB, Barcelona, Spain
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Pujals S, Bastús NG, Pereiro E, López-Iglesias C, Puntes VF, Kogan MJ, Giralt E. Shuttling gold nanoparticles into tumoral cells with an amphipathic proline-rich peptide. Chembiochem 2009; 10:1025-31. [PMID: 19322842 DOI: 10.1002/cbic.200800843] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Cell-penetrating peptides (CPPs) are a potential tool for intracellular delivery of different kinds of cargoes. Because of their growing use in nanobiomedicine, both for diagnostics and for treatment, metal nanoparticles are an interesting cargo for CPPs. Here, gold nanoparticles (AuNps) and the amphipathic proline-rich peptide SAP have been used. Conjugation of the peptide onto the AuNps was achieved by addition of a cysteine to the SAP sequence for thiol chemisorption on gold, and the attachment was confirmed by visible spectroscopy, dynamic light scattering (DLS), zeta-potential (ZP), stability towards ionic strength (as high as 1 M NaCl), X-ray photoelectron spectroscopy (XPS) and high-resolution transmission electron microscopy (HR-TEM) coupled to electron energy loss spectroscopy (EELS). AuNp-C-SAP internalization in HeLa cells was observed by three different microscopy techniques-TEM, confocal laser scanning microscopy (CLSM) and transmission X-ray microscopy (TXM)-and all of them have confirmed the effective intracellular delivery of AuNps by SAP.
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Affiliation(s)
- Sílvia Pujals
- Institut de Recerca Biomèdica, Parc Científic de Barcelona, Spain
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Bastús NG, Sánchez-Tilló E, Pujals S, Farrera C, Kogan MJ, Giralt E, Celada A, Lloberas J, Puntes V. Peptides conjugated to gold nanoparticles induce macrophage activation. Mol Immunol 2009; 46:743-8. [DOI: 10.1016/j.molimm.2008.08.277] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2008] [Accepted: 08/27/2008] [Indexed: 10/21/2022]
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Casals E, Vázquez-Campos S, Bastús NG, Puntes V. Distribution and potential toxicity of engineered inorganic nanoparticles and carbon nanostructures in biological systems. Trends Analyt Chem 2008. [DOI: 10.1016/j.trac.2008.06.004] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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