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Articles 105 records found  beginprevious47 - 56nextend  jump to record: Search took 0.01 seconds. 
47.
18 p, 1.2 MB Modeling the Optical Responses of Noble Metal Nanoparticles Subjected to Physicochemical Transformations in Physiological Environments : Aggregation, Dissolution and Oxidation / Piella, Jordi (Institut Català de Nanociència i Nanotecnologia) ; Bastús, Neus G. (Institut Català de Nanociència i Nanotecnologia) ; Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia)
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. [...]
2017 - 10.1515/zpch-2016-0874
Zeitschrift fur Physikalische Chemie, Vol. 231, Issue 1 (January 2017) , p. 33-50  
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48.
25 p, 2.8 MB Size-dependent protein-nanoparticle interactions in citrate-stabilized gold nanoparticles : the emergence of the protein corona / Piella, Jordi (Institut Català de Nanociència i Nanotecnologia) ; Bastús, Neus G. (Institut Català de Nanociència i Nanotecnologia) ; Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia)
Surface modifications of highly monodisperse citrate-stabilized gold nanoparticles (AuNPs) with sizes ranging from 3. 5 to 150 nm after their exposure to cell culture media supplemented with fetal bovine serum were studied and characterized by the combined use of UV-vis spectroscopy, dynamic light scattering, and zeta potential measurements. [...]
2017 - 10.1021/acs.bioconjchem.6b00575
Bioconjugate chemistry, Vol. 28, Issue 1 (January 2017) , p. 88-97  
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49.
22 p, 4.3 MB Cerium oxide nanoparticles protect against oxidant injury and interfere with oxidative mediated kinase signaling in human-derived hepatocytes / Carvajal, Silvia (Institut d'Investigacions Biomèdiques August Pi i Sunyer) ; Perramón, Meritxell (Institut d'Investigacions Biomèdiques August Pi i Sunyer) ; Casals, Gregori (Institut d'Investigacions Biomèdiques August Pi i Sunyer) ; Oró, Denise (Institut d'Investigacions Biomèdiques August Pi i Sunyer) ; Ribera, Jordi (Institut d'Investigacions Biomèdiques August Pi i Sunyer) ; Morales Ruiz, Manuel (Universitat de Barcelona. Departament de Biomedicina) ; Casals, Eudald (Wuyi University. School of Biotechnology and Health Sciences) ; Casado, Pedro (Queen Mary University of London) ; Melgar Lesmes, Pedro (Universitat de Barcelona. Departament de Biomedicina) ; Fernández-Varo, Guillermo (Institut d'Investigacions Biomèdiques August Pi i Sunyer) ; Cutillas, Pedro (Queen Mary University of London) ; Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia) ; Jiménez, Wladimiro (Universitat de Barcelona. Departament de Biomedicina)
Cerium oxide nanoparticles (CeO NPs) possess powerful antioxidant properties, thus emerging as a potential therapeutic tool in non-alcoholic fatty liver disease (NAFLD) progression, which is characterized by a high presence of reactive oxygen species (ROS). [...]
2019 - 10.3390/ijms20235959
International journal of molecular sciences, Vol. 20, Issue 23 (December 2019) , art. 5959  
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50.
14 p, 3.5 MB Assessment of iron oxide nanoparticle ecotoxicity on regeneration and homeostasis in the replacement model system Schmidtea mediterranea / Tran, Thao A. (Fraunhofer Institute for Biomedical Engineering IBMT) ; Hesler, Michelle (Fraunhofer Institute for Biomedical Engineering IBMT) ; Moriones, Oscar Hernando (Institut Català de Nanociència i Nanotecnologia) ; Jimeno Romero, Alba (Universidad del País Vasco) ; Fischer, Benjamin (Fraunhofer Institute for Biomedical Engineering IBMT) ; Bastús, Neus G. (Institut Català de Nanociència i Nanotecnologia) ; Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia) ; Wagner, Sylvia (Fraunhofer Institute for Biomedical Engineering IBMT) ; Kohl, Yvonne L. (Fraunhofer Institute for Biomedical Engineering IBMT) ; Gentile, Luca (Fraunhofer Institute for Biomedical Engineering IBMT)
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. [...]
2019 - 10.14573/altex.1902061
ALTEX, Vol. 36, Núm. 4 (October 2019) , p. 583-596  
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51.
8 p, 1.5 MB Hollow PdAg-CeO2 heterodimer nanocrystals as highly structured heterogeneous catalysts / Patarroyo, Javier (Institut Català de Nanociència i Nanotecnologia) ; Delgado, Jorge A. (Centre Tecnològic de la Química) ; Merkoçi, Florind (Institut Català de Nanociència i Nanotecnologia) ; Genç, Aziz (Institut Català de Nanociència i Nanotecnologia) ; Sauthier, Guillaume (Institut Català de Nanociència i Nanotecnologia) ; Llorca, Jordi (Universitat Politècnica de Catalunya. Departament d'Enginyeria Química) ; Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ; Bastús, Neus G. (Institut Català de Nanociència i Nanotecnologia) ; Godard, Cyril (Universitat Rovira i Virgili. Departament de Química Física i Inorgànica) ; Claver, Carmen (Universitat Rovira i Virgili. Departament de Química Física i Inorgànica) ; Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia)
In the present work, hollow PdAg-CeO heterodimer nanocrystals (NCs) were prepared and tested as catalysts for the selective hydrogenation of alkynes. These nanostructures combine for the first time the beneficial effect of alloying Pd with Ag in a single NC hollow domain with the formation of active sites at the interface with the CeO counterpart in an additive manner. [...]
2019 - 10.1038/s41598-019-55105-x
Scientific reports, Vol. 9 (December 2019) , art. 18776  
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52.
26 p, 1.4 MB Nanosafety : towards safer nanoparticles by design / Bastús, Neus G. (Institut Català de Nanociència i Nanotecnologia) ; Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia)
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. [...]
2018 - 10.2174/0929867324666170413124915
Current medicinal chemistry, Vol. 25, Issue 35 (2018) , p. 4587-4601  
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53.
12 p, 4.4 MB Cerium oxide nanoparticles improve liver regeneration after acetaminophen-induced liver injury and partial hepatectomy in rats / Cordoba, Bernat (Hospital Clínic i Provincial de Barcelona) ; Arce Cerezo, Altamira (Hospital Clínic i Provincial de Barcelona) ; Ribera, Jordi (Hospital Clínic i Provincial de Barcelona) ; Pauta, Montse (Hospital Clínic i Provincial de Barcelona) ; Oró, Denise (Hospital Clínic i Provincial de Barcelona) ; Casals, Gregori (Hospital Clínic i Provincial de Barcelona) ; Fernández-Varo, Guillermo (Hospital Clínic i Provincial de Barcelona) ; Casals, Eudald (Institut Català de Nanociència i Nanotecnologia) ; Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia) ; Jiménez, Wladimiro (Universitat de Barcelona. Departament de Biomedicina) ; Morales Ruiz, Manuel (Universitat de Barcelona. Departament de Biomedicina)
Background and aims: Cerium oxide nanoparticles are effective scavengers of reactive oxygen species and have been proposed as a treatment for oxidative stress-related diseases. Consequently, we aimed to investigate the effect of these nanoparticles on hepatic regeneration after liver injury by partial hepatectomy and acetaminophen overdose. [...]
2019 - 10.1186/s12951-019-0544-5
Journal of nanobiotechnology, Vol. 17 (October 2019) , art. 112  
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54.
21 p, 2.5 MB Seeded-Growth Aqueous Synthesis of Colloidal-Stable Citrate-Stabilized Au/CeO2 Hybrid Nanocrystals : Heterodimers, Core@Shell, and Clover- And Star-Like Structures / Piella, Jordi (Institut Català de Nanociència i Nanotecnologia) ; González Febles, Ana (Institut Català de Nanociència i Nanotecnologia) ; Patarroyo, Javier (Institut Català de Nanociència i Nanotecnologia) ; Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ; Bastús, Neus G. (Institut Català de Nanociència i Nanotecnologia) ; Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia)
Well-defined colloidal-stable citrate-stabilized Au/CeO hybrid nanocrystals (NCs) with coherent quasi-epitaxial interfaces and unprecedented control of their architectural and morphological characteristics have been synthesized via a novel and straightforward seeded-growth aqueous approach. [...]
2019 - 10.1021/acs.chemmater.9b02005
Chemistry of materials, Vol. 31, Issue 19 (October 2019) , p. 7922-7932  
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55.
15 p, 1.7 MB Robust one-pot synthesis of citrate-stabilized Au@CeO2 hybrid nanocrystals with different thickness and dimensionality / Bastús, Neus G. (Institut Català de Nanociència i Nanotecnologia) ; Piella, Jordi (Institut Català de Nanociència i Nanotecnologia) ; Pérez Brizuela, Sara (Institut Català de Nanociència i Nanotecnologia) ; Patarroyo, Javier (Institut Català de Nanociència i Nanotecnologia) ; Genç, Aziz (Institut Català de Nanociència i Nanotecnologia) ; Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ; Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia)
Well-defined colloidal Au@CeO hybrid nanocrystals (NCs) comprising different core/shell morphologies have been synthesized via a novel and simple one-pot aqueous approach. The method allows producing hybrid morphologies composed by an active and accessible Au core coated by a porous CeO shell with varying shell thickness and dimensionality by simply adjusting the Au /Ce precursor ratio. [...]
2019 - 10.1016/j.apmt.2019.03.003
Applied materials today, Vol. 15 (June 2019) , p. 445-452  
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56.
5 p, 706.1 KB The influence of the MOF shell thickness on the catalytic performance of composites made of inorganic (hollow) nanoparticles encapsulated into MOFs / Yazdi, Amirali (Institut Català de Nanociència i Nanotecnologia) ; Merkoçi, Florind (Institut Català de Nanociència i Nanotecnologia) ; Bastús, Neus G. (Institut Català de Nanociència i Nanotecnologia) ; Imaz, Inhar (Institut Català de Nanociència i Nanotecnologia) ; Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia) ; Maspoch Comamala, Daniel (Institut Català de Nanociència i Nanotecnologia)
Herein we report the encapsulation of hollow Pt or Pd nanoparticles into ZIF-8, making a series of composites in which the ZIF-8 shell thickness has been systematically varied. By using these composites as catalysts for the reduction of 4-nitrophenol and Eosin Y, we show that the MOF shell thickness plays a key role in the catalytic performance of this class of composites.
2016 - 10.1039/c6cy02071b
Catalysis science & technology, Vol. 6, Issue 24 (December 2016) , p. 8388-8391  
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Articles : 105 records found   beginprevious47 - 56nextend  jump to record:
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4 Puntes, V.
1 Puntes, V. F.
107 Puntes, Victor
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14 Puntes, Víctor,
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