UAB Digital Repository of Documents 16 records found  1 - 10next  jump to record: Search took 0.01 seconds. 
1.
13 p, 9.0 MB Sculpting Windows onto AuAg Hollow Cubic Nanocrystals / Patarroyo, Javier (Institut Català de Nanociència i Nanotecnologia) ; Bastús, Neus G (Institut Català de Nanociència i Nanotecnologia) ; Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia)
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. [...]
2023 - 10.3390/nano13182590
Nanomaterials, Vol. 13, Issue 18 (September 2023) , art. 2590  
2.
12 p, 2.5 MB Asymmetrical Plasmon Distribution in Hybrid AuAg Hollow/Solid Coded Nanotubes / Genç, Aziz (Institut Català de Nanociència i Nanotecnologia) ; Patarroyo, Javier (Institut Català de Nanociència i Nanotecnologia) ; Sancho-Parramon, Jordi (Rudjer Boskovic Institute) ; Arenal, Raúl (ARAID Foundation) ; Bastús, Neus G (Institut Català de Nanociència i Nanotecnologia) ; Puntes, Víctor (Hospital Universitari Vall d'Hebron. Institut de Recerca) ; Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia)
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. [...]
2023 - 10.3390/nano13060992
Nanomaterials, Vol. 13, Issue 6 (March 2023) , art. 992  
3.
26 p, 1.5 MB The Role of common cell culture media supplements on citrate-stabilized gold nanoparticle protein corona formation, aggregation state, and the consequent impact on cellular uptake / Barbero, Francesco (Institut Català de Nanociència i Nanotecnologia) ; Michelini, Sara (University of Salzburg. Department of Biosciences) ; Moriones, Oscar Hernando (Universitat Autònoma de Barcelona) ; Patarroyo, Javier (Institut Català de Nanociència i Nanotecnologia) ; Rosell Aluja, Jordi 1955- (Hospital Universitari Vall d'Hebron. Institut de Recerca) ; Gustà, Muriel F (Hospital Universitari Vall d'Hebron. Institut de Recerca) ; Vitali, Michele (Hospital Universitari Vall d'Hebron. Institut de Recerca) ; Martín, Luna (Vall d'Hebron Institut d'Oncologia) ; Canals, Francesc (Vall d'Hebron Institut d'Oncologia) ; Duschl, Albert (University of Salzburg. Department of Biosciences) ; Horejs-Hoeck, Jutta (University of Salzburg. Department of Biosciences) ; Mondragón, Laura (Institut Català de Nanociència i Nanotecnologia) ; Bastús, Neus G. (Institut Català de Nanociència i Nanotecnologia) ; Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia)
Sodium citrate-stabilized gold nanoparticles (AuNPs) are destabilized when dispersed in cell culture media (CCMs). This may promote their aggregation and subsequent sedimentation, or under the proper conditions, their interaction with dispersed proteins can lead to the formation of a NP-stabilizing protein corona. [...]
2022 - 10.1021/acs.bioconjchem.2c00232
Bioconjugate chemistry, Vol. 33, issue 8 (Aug. 2022) , p. 1505-1514  
4.
12 p, 2.0 MB Tailoring of the photocatalytic activity of CeO2 nanoparticles by the presence of plasmonic Ag nanoparticles / Zhao, Shuang (Universität Hamburg. Fachbereich Physik) ; Riedel, Marc (Technical University of Applied Sciences Wildau. Institute of Life Sciences and Biomedical Technologies) ; Patarroyo, Javier (Institut Català de Nanociència i Nanotecnologia) ; Bastús, Neus G. (Institut Català de Nanociència i Nanotecnologia) ; Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia) ; Yue, Zhao (Nankai University. Department of Microelectronics) ; Lisdat, Fred (Technical University of Applied Sciences Wildau. Institute of Life Sciences and Biomedical Technologies) ; Parak, Wolfgang J. (Universität Hamburg. Fachbereich Physik)
The present study investigates basic features of a photoelectrochemical system based on CeO nanoparticles fixed on gold electrodes. Since photocurrent generation is limited to the absorption range of the CeO in the UV range, the combination with metal nanoparticles has been studied. [...]
2022 - 10.1039/d2nr01318e
Nanoscale, Vol. 14, issue 33 (Sep. 2022) , p. 12048-12059  
5.
8 p, 3.2 MB Understanding galvanic replacement reactions : the case of Pt and Ag / Merkoçi, Florind (Institut Català de Nanociència i Nanotecnologia) ; Patarroyo, Javier (Universitat Autònoma de Barcelona) ; Russo, Lorenzo (Institut Català de Nanociència i Nanotecnologia) ; Piella, Jordi (Institut Català de Nanociència i Nanotecnologia) ; Genç, Aziz (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)
Synthesis of nanocrystals (NCs), where material science elements are addressed with organic chemistry precision techniques, is especially challenging and difficult to control. This difficulty arises from the increased complexity of the mineralization processes and the generation of a liquid-solid interface. [...]
2020 - 10.1016/j.mtadv.2019.100037
Materials Today Advances, Vol. 5 (March 2020) , art. 100037  
6.
153 p, 5.4 MB Exploring synthetic strategies for the production of complex inorganic nanoparticles / Patarroyo, Javier ; Puntes, Víctor, dir. ; Pascual i Gainza, Jordi, dir. ; Institut Català de Nanociència i Nanotecnologia (ICN2)
Los nanomateriales han sido un área intrigante de investigación científica en las últimas décadas, dada sus particulares propiedades físico-químicas que los hacen adecuados para aplicaciones en campos como fotonica, catálisis, biomedicina, remediación ambiental, conversión y almacenamiento de energía, sensores, etc. [...]
Nanomaterials have been an intriguing area of scientific research over the previous few decades because of their unique physical and chemical properties that make them suitable for applications in fields like photonics, catalysis, biomedicine, environmental remediation, energy conversion and storage, sensors, etc. [...]

: , 2019.  
7.
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  
8.
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  
9.
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  
10.
22 p, 1.0 MB Plasmonic assemblies of gold nanorods on nanoscale patterns of poly(ethylene glycol) : application in surface-enhanced Raman spectroscopy / Karabel, Sema (Erciyes University. Department of Materials Science and Engineering) ; Patarroyo, Javier (Institut Català de Nanociència i Nanotecnologia) ; Kiremitler, N. Burak (Erciyes University. Department of Materials Science and Engineering) ; Pekdemir, Sami (Erciyes University. Department of Materials Science and Engineering) ; Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia) ; Onses, M. Serdar (Erciyes University. Department of Materials Science and Engineering)
Approaches are needed for the tailored assembly of plasmonic building blocks on the surface of substrates to synergistically enhance their properties. Here we demonstrate selective immobilization and assembly of gold nanorods (NRs) on substrates modified and patterned with end-grafted poly(ethylene glycol) (PEG) layers. [...]
2018 - 10.1016/j.jcis.2018.07.124
Journal of colloid and interface science, Vol. 532 (December 2018) , p. 449-455  

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