Light-Induced Polarization-Directed Growth of Optically Printed Gold Nanoparticles

Optical printing has been proved a versatile and simple method to fabricate arbitrary arrays of colloidal nanoparticles (NPs) on substrates. Here, we show that is also a powerful tool for studying chemical reactions at the single NP level. We demonstrate that 60 nm gold NPs immobilized by optical pr...

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Autores principales: Violi, I.L., Gargiulo, J., Von Bilderling, C., Cortés, E., Stefani, F.D.
Formato: JOUR
Materias:
Nanofabrication
Optical forces
Plasmon assisted chemistry
polarization
Gold
Nanoparticles
Nanotechnology
Plasmons
Printing
Arbitrary arrays
Colloidal nanoparticles
Directed growth
Gold Nanoparticles
Irradiation time
Light-induced polarization
Optical force
SIMPLE method
Polarization
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_15306984_v16_n10_p6529_Violi
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_15306984_v16_n10_p6529_Violi
record_format dspace
spelling todo:paper_15306984_v16_n10_p6529_Violi2023-10-03T16:21:19Z Light-Induced Polarization-Directed Growth of Optically Printed Gold Nanoparticles Violi, I.L. Gargiulo, J. Von Bilderling, C. Cortés, E. Stefani, F.D. Nanofabrication Optical forces Plasmon assisted chemistry polarization Gold Nanoparticles Nanotechnology Plasmons Printing Arbitrary arrays Colloidal nanoparticles Directed growth Gold Nanoparticles Irradiation time Light-induced polarization Optical force SIMPLE method Polarization Optical printing has been proved a versatile and simple method to fabricate arbitrary arrays of colloidal nanoparticles (NPs) on substrates. Here, we show that is also a powerful tool for studying chemical reactions at the single NP level. We demonstrate that 60 nm gold NPs immobilized by optical printing can be used as seeds to obtain larger NPs by plasmon-assisted reduction of aqueous HAuCl4. The final size of each NP is simply controlled by the irradiation time. Moreover, we show conditions for which the growth occurs preferentially in the direction of light polarization, enabling the in situ anisotropic reshaping of the NPs in predetermined orientations. © 2016 American Chemical Society. Fil:Von Bilderling, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_15306984_v16_n10_p6529_Violi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Nanofabrication
Optical forces
Plasmon assisted chemistry
polarization
Gold
Nanoparticles
Nanotechnology
Plasmons
Printing
Arbitrary arrays
Colloidal nanoparticles
Directed growth
Gold Nanoparticles
Irradiation time
Light-induced polarization
Optical force
SIMPLE method
Polarization
spellingShingle Nanofabrication
Optical forces
Plasmon assisted chemistry
polarization
Gold
Nanoparticles
Nanotechnology
Plasmons
Printing
Arbitrary arrays
Colloidal nanoparticles
Directed growth
Gold Nanoparticles
Irradiation time
Light-induced polarization
Optical force
SIMPLE method
Polarization
Violi, I.L.
Gargiulo, J.
Von Bilderling, C.
Cortés, E.
Stefani, F.D.
Light-Induced Polarization-Directed Growth of Optically Printed Gold Nanoparticles
topic_facet Nanofabrication
Optical forces
Plasmon assisted chemistry
polarization
Gold
Nanoparticles
Nanotechnology
Plasmons
Printing
Arbitrary arrays
Colloidal nanoparticles
Directed growth
Gold Nanoparticles
Irradiation time
Light-induced polarization
Optical force
SIMPLE method
Polarization
description Optical printing has been proved a versatile and simple method to fabricate arbitrary arrays of colloidal nanoparticles (NPs) on substrates. Here, we show that is also a powerful tool for studying chemical reactions at the single NP level. We demonstrate that 60 nm gold NPs immobilized by optical printing can be used as seeds to obtain larger NPs by plasmon-assisted reduction of aqueous HAuCl4. The final size of each NP is simply controlled by the irradiation time. Moreover, we show conditions for which the growth occurs preferentially in the direction of light polarization, enabling the in situ anisotropic reshaping of the NPs in predetermined orientations. © 2016 American Chemical Society.
format JOUR
author Violi, I.L.
Gargiulo, J.
Von Bilderling, C.
Cortés, E.
Stefani, F.D.
author_facet Violi, I.L.
Gargiulo, J.
Von Bilderling, C.
Cortés, E.
Stefani, F.D.
author_sort Violi, I.L.
title Light-Induced Polarization-Directed Growth of Optically Printed Gold Nanoparticles
title_short Light-Induced Polarization-Directed Growth of Optically Printed Gold Nanoparticles
title_full Light-Induced Polarization-Directed Growth of Optically Printed Gold Nanoparticles
title_fullStr Light-Induced Polarization-Directed Growth of Optically Printed Gold Nanoparticles
title_full_unstemmed Light-Induced Polarization-Directed Growth of Optically Printed Gold Nanoparticles
title_sort light-induced polarization-directed growth of optically printed gold nanoparticles
url http://hdl.handle.net/20.500.12110/paper_15306984_v16_n10_p6529_Violi
work_keys_str_mv AT violiil lightinducedpolarizationdirectedgrowthofopticallyprintedgoldnanoparticles
AT gargiuloj lightinducedpolarizationdirectedgrowthofopticallyprintedgoldnanoparticles
AT vonbilderlingc lightinducedpolarizationdirectedgrowthofopticallyprintedgoldnanoparticles
AT cortese lightinducedpolarizationdirectedgrowthofopticallyprintedgoldnanoparticles
AT stefanifd lightinducedpolarizationdirectedgrowthofopticallyprintedgoldnanoparticles
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