ArticleNanomaterials (Basel, Switzerland)2019
High-Density Plasmonic Nanoparticle Arrays Deposited on Nanoporous Anodic Alumina Templates for Optical Sensor Applications.
Article in Nanomaterials (Basel, Switzerland), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Fabrication of Large-Area High-Resolution Templates by Focused Ion Beam Combined with Colloidal Nanoparticle Dimer Deposition for SERS Substrates.Nanomaterials (Basel, Switzerland) · 2024Article
- A Comprehensive Study of Aluminum Anodization in Transition Modes.Materials (Basel, Switzerland) · 2024Article
- Temporal trends in microplastic accumulation in placentas from pregnancies in Hawai'i.Environment international · 2023Article
- Optimization of Colloidal Gold Nanoparticles on Porous Anodic Aluminum Oxide Substrates for Refractometric Sensing.ACS omega · 2022Article
- Ingenious Fabrication of Ag-Filled Porous Anodic Alumina Films as Powerful SERS Substrates for Efficient Detection of Biological and Organic Molecules.Biosensors · 2022Article
- Recent Progress in the Fabrication and Optical Properties of Nanoporous Anodic Alumina.Nanomaterials (Basel, Switzerland) · 2022Review
- Recent Advances in Nanoporous Anodic Alumina: Principles, Engineering, and Applications.Nanomaterials (Basel, Switzerland) · 2021Review
- Nano-substructured plasmonic pore arrays: a robust, low cost route to reproducible hierarchical structures extended across macroscopic dimensions.Nanoscale advances · 2020Article
Corrections and comments
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Authors and funding
8 authors.
Funding
Abstract
This study demonstrates a new, robust, and accessible deposition technique of metal nanoparticle arrays (NPAs), which uses nanoporous anodic alumina (NAA) as a template for capillary force-assisted convective colloid (40, 60, and 80 nm diameter Au) assembly. The NPA density and nanoparticle size can be independently tuned by the anodization conditions and colloid synthesis protocols. This enables production of non-touching variable-density NPAs with controllable gaps in the 20-60 nm range. The NPA nearest neighbor center distance in the present study was fixed to 100 nm by the choice of anodization protocol. The obtained Au NPAs have the resonant scattering maxima in the visible spectral range, with a refractometric sensitivity, which can be tuned by the variation of the array density. The thickness of the NAA layer in an Aluminum-NAA-NPA multilayer system enables further tuning of the resonance frequency and optimization for use with specific molecules, e.g., to avoid absorption bands. Applicability of the mentioned multilayers for colorimetric refractive index (RI) sensing is demonstrated. Their use as Surface-Enhanced Raman Scattering (SERS) substrates is tested using hemoglobin as a biological probe molecule.
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Registered trials
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