Explanipedia

Daily Ultrastructural Remodeling of Clock Neurons Open

Juan Ignacio Ispizua, Micaela Rodríguez-Caron, Francisco Javier Tassara, Keun-Young Kim, Christi Perkins , et al. · 2025

Single Objective Light Sheet Microscopy allows high-resolution<i>in vivo</i>brain imaging of Drosophila Open

Francisco Joaquín Tassara, Mariano Barella, Lourdes Simó, Mónica Folgueira, Micaela Rodríguez-Caron , et al. · 2024

In vivo imaging of dynamic sub-cellular brain structures in Drosophila melanogaster is key to understanding several phenomena in neuroscience. However, its implementation has been hindered by a trade-off between spatial resolution, speed, …

Daily ultrastructural remodeling of clock neurons Open

Juan Ignacio Ispizua, Micaela Rodríguez-Caron, FJ Tassara, KY Kim, Christi Perkins , et al. · 2024

In Drosophila, about 250 clock neurons in the brain form a network that orchestrates circadian rhythmicity. Among them, eight small Lateral ventral Neurons (s-LNvs) play a critical role, synchronizing the circadian ensemble via the neurope…

Spatial Distributions of Single-Molecule Reactivity in Plasmonic Catalysis Open

Simone Ezendam, Julián Gargiulo, Ana Sousa‐Castillo, Joong Bum Lee, Yoon Sung Nam , et al. · 2023

Plasmonic catalysts have the potential to accelerate and control chemical reactions with light by exploiting localized surface plasmon resonances. However, the mechanisms governing plasmonic catalysis are not simple to decouple. Several pl…

Anti Stokes Thermometry of Plasmonic Nanoparticle Arrays Open

Simone Ezendam, Nan Lin, Ianina L. Violi, Stefan A. Maier, Emiliano Cortés , et al. · 2023

Metallic nanoparticles possess strong photothermal responses, especially when illuminated as ensembles due to collective effects. However, accurately quantifying the temperature increase remains a significant challenge, impeding progress i…

Impact of bimetallic interface design on heat generation in plasmonic Au/Pd nanostructures studied by single-particle thermometry Open

Julián Gargiulo, Matías Herran, Ianina L. Violi, Ana Sousa‐Castillo, Luciana P. Martinez , et al. · 2023

Localized surface plasmons are lossy and generate heat. However, accurate measurement of the temperature of metallic nanoparticles under illumination remains an open challenge, creating difficulties in the interpretation of results across …

Single particle thermometry in bimetallic plasmonic nanostuctures Open

Julián Gargiulo, Matías Herran, Ianina L. Violi, Ana Sousa‐Castillo, Luciana P. Martinez , et al. · 2022

Localized surface plasmons are lossy and generate heat. However, accurate measurement of the temperature of metallic nanoparticles under illumination remains an open challenge, creating difficulties in the interpretation of results across …

3D-nanoprinted on-chip antiresonant waveguide with hollow core and microgaps for integrated optofluidic spectroscopy Open

Jisoo Kim, Johannes Bürger, Bumjoon Jang, Matthias Zeisberger, Julián Gargiulo , et al. · 2022

Here, we unlock the properties of the recently introduced on-chip hollow-core microgap waveguide in the context of optofluidics which allows for intense light-water interaction over long lengths with fast response times. The nanoprinted wa…

3D-Nanoprinted Antiresonant Hollow-Core Microgap Waveguide: An on-Chip Platform for Integrated Photonic Devices and Sensors Open

Johannes Bürger, Vera Schalles, Jisoo Kim, Bumjoon Jang, Matthias Zeisberger , et al. · 2022

Due to their unique capabilities, hollow-core waveguides are playing an increasingly important role, especially in meeting the growing demand for integrated and low-cost photonic devices and sensors. Here, we present the antiresonant hollo…

Hybrid Plasmonic Nanomaterials for Hydrogen Generation and Carbon Dioxide Reduction Open

Simone Ezendam, Matías Herran, Nan Lin, Christoph Gruber, Yicui Kang , et al. · 2022

The successful development of artificial photosynthesis requires finding new materials able to efficiently harvest sunlight and catalyze hydrogen generation and carbon dioxide reduction reactions. Plasmonic nanoparticles are promising cand…

Challenges on optical printing of colloidal nanoparticles Open

Ianina L. Violi, Luciana P. Martinez, Mariano Barella, Cecilia Zaza, Lukáš Chvátal , et al. · 2021

While colloidal chemistry provides ways to obtain a great variety of nanoparticles with different shapes, sizes, material compositions, and surface functions, their controlled deposition and combination on arbitrary positions of substrates…

Challenges on Optical Printing of Colloidal Nanoparticles Open

Ianina L. Violi, Luciana P. Martinez, Mariano Barella, Cecilia Zaza, Lukáš Chvátal , et al. · 2021

While colloidal chemistry provides ways to obtain a great variety of nanoparticles, with different shapes, sizes, material composition, and surface functions, their controlled deposition and combination on arbitrary positions of substrates…

In Situ Photothermal Response of Single Gold Nanoparticles Through Hyperspectral Imaging AntiStokes Thermometry Open

Mariano Barella, Ianina L. Violi, Julián Gargiulo, Luciana P. Martinez, Florian Goschin , et al. · 2021

Several fields of applications require a reliable characterization of the photothermal response and heat dissipation of nanoscopic systems, which remains a challenging task both for modeling and experimental measurements. Here, we present …

Publisher Correction: Coherent interaction of atoms with a beam of light confined in a light cage Open

Flavie Davidson-Marquis, Julián Gargiulo, Esteban Gómez-López, Bumjoon Jang, Tim Kroh , et al. · 2021

Fiber-integrated hollow-core light cage for gas spectroscopy Open

Bumjoon Jang, Julián Gargiulo, Jisoo Kim, Johannes Bürger, Steffen Both , et al. · 2021

Interfacing integrated on-chip waveguides with spectroscopic approaches represents one research direction within current photonics aiming at reducing geometric footprints and increasing device densities. Particularly relevant is to connect…

Coherent interaction of atoms with a beam of light confined in a light cage Open

Flavie Davidson-Marquis, Julián Gargiulo, Esteban Gómez-López, Bumjoon Jang, Tim Kroh , et al. · 2021

Ultrahigh-aspect-ratio light cages: fabrication limits and tolerances of free-standing 3D nanoprinted waveguides Open

Johannes Bürger, Jisoo Kim, Bumjoon Jang, Julián Gargiulo, Markus A. Schmidt , et al. · 2021

Three-dimensional laser nanoprinting represents a unique approach for implementing on-chip hollow-core waveguides. Here we discuss the fabrication characteristics of the light cage geometry arising from the used two-photon polymerization l…

<i>In Situ</i> Photothermal Response of\nSingle Gold Nanoparticles\nthrough Hyperspectral Imaging Anti-Stokes Thermometry Open

Mariano Barella, Ianina L. Violi, Julián Gargiulo, Luciana P. Martinez, Florian Goschin , et al. · 2020

Several\nfields of applications require a reliable characterization\nof the photothermal response and heat dissipation of nanoscopic systems,\nwhich remains a challenging task for both modeling and experimental\nmeasurements. Here, we pres…

Size-Selective Optical Printing of Silicon Nanoparticles through Their Dipolar Magnetic Resonance Open

Cecilia Zaza, Ianina L. Violi, Julián Gargiulo, Germán Chiarelli, Ludmilla Schumacher , et al. · 2020

Silicon nanoparticles possess unique size-dependent optical properties due to their strong electric and magnetic resonances in the visible range. However, their widespread application has been limited, in comparison to other (e.g. metallic…

Size-Selective Optical Printing of Silicon Nanoparticles through Their\n Dipolar Magnetic Resonance Open

Cecilia Zaza, Ianina L. Violi, Julián Gargiulo, Germán Chiarelli, Ludmilla Schumacher , et al. · 2020

Silicon nanoparticles possess unique size-dependent optical properties due to\ntheir strong electric and magnetic resonances in the visible range. However,\ntheir widespread application has been limited, in comparison to other (e.g.\nmetal…

Fine-tuning of the optical properties of hollow-core light cages using dielectric nanofilms Open

Bumjoon Jang, Julián Gargiulo, Mario Ziegler, Ron Fatobene Ando, Uwe Hübner , et al. · 2019

Here, we show that the optical properties of direct-laser-written on-chip hollow-core waveguides—so-called light cages—can be controlled to a very high degree by dielectric nanofilms. Using low-temperature atomic layer deposition (ALD), al…

From Optical to Chemical Hot Spots in Plasmonics Open

Julián Gargiulo, Rodrigo Berté, Yi Li, Stefan A. Maier, Emiliano Cortés · 2019

In recent years, the possibility to induce chemical transformations by using tunable plasmonic modes has opened the question of whether we can control or create chemical hot spots in these systems. This can be rationalized as the reactive …

Light guidance in photonic band gap guiding dual-ring light cages implemented by direct laser writing Open

Bumjoon Jang, Julián Gargiulo, Ron Fatobene Ando, Alberto Lauri, Stefan A. Maier , et al. · 2019

Efficient waveguiding inside low refractive index media is of key importance for a great variety of applications that demand strong light-matter interaction on small geometric footprints. Here, we demonstrate efficient light guidance in si…

Dynamics of hot electron generation in metallic nanostructures: general discussion Open

Javier Aizpurua, Michael N. R. Ashfold, Francesca Baletto, Jeremy J. Baumberg, Phillip Christopher , et al. · 2019

Yonatan Sivan opened discussion of the introductory lecture by Naomi J. Halas: I have 3 comments, each addressing one of the key papers you presented. (1) My first comment is regarding the theory paper.1 In that paper, the authors calculat…

Size-Selective Optical Printing of Silicon Nanoparticles through Their Dipolar Magnetic Resonance Open

Cecilia Zaza, Ianina L. Violi, Julián Gargiulo, Germán Chiarelli, Ludmilla Schumacher , et al. · 2019

Silicon\nnanoparticles possess unique size-dependent optical properties\ndue to their strong electric and magnetic resonances in the visible\nrange. However, their widespread application has been limited, in\ncomparison with other (e.g., m…

Monitoring plasmonic hot-carrier chemical reactions at the single particle level Open

Sabrina Simoncelli, Evangelina Pensa, Thomas Brick, Julián Gargiulo, Alberto Lauri , et al. · 2018

Nanoscopic inspection of reactivity in single plasmonic photocatalysts.

Correction to Connecting Metallic Nanoparticles by Optical Printing Open

Julián Gargiulo, Santiago Cerrotta, Emiliano Cortés, Ianina L. Violi, Fernando D. Stefani · 2018

ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionNEXTORIGINAL ARTICLEThis notice is a correctionCorrection to Connecting Metallic Nanoparticles by Optical PrintingJulián Gargiulo, Santiago Cerrotta, Emiliano Cortés, Ianina L. Violi, and…

Accuracy and Mechanistic Details of Optical Printing of Single Au and Ag Nanoparticles Open

Julián Gargiulo, Ianina L. Violi, Santiago Cerrota, Lukáš Chvátal, Emiliano Cortés , et al. · 2017

Optical printing is a powerful all-optical method that allows the incorporation of colloidal nanoparticles (NPs) onto substrates with nanometric precision. Here, we present a systematic study of the accuracy of optical printing of Au and A…

Understanding and Reducing Photothermal Forces for the Fabrication of Au Nanoparticle Dimers by Optical Printing Open

Julián Gargiulo, Thomas Brick, Ianina L. Violi, Facundo C. Herrera, Toshihiko Shibanuma , et al. · 2017

Optical printing holds great potential to enable the use of the vast variety of colloidal nanoparticles (NPs) in nano- and microdevices and circuits. By means of optical forces, it enables the direct assembly of NPs, one by one, onto speci…

Impresión óptica de nanopartículas metálicas Open

Julián Gargiulo · 2017

Las nanopartículas metálicas (MNPs) presentan propiedades optoelectrónicasúnicas que dependen de su forma y su tamaño y que no están presente enpartículas de tamaños macroscópicos. Estas propiedades surgen a partir de susresonancias plasmó…

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