Passivated aluminum nanohole arrays for label-free biosensing applications

ACS Applied Materials & Interfaces
Víctor Canalejas-TejeroCarlos Angulo Barrios

Abstract

We report the fabrication and performance of a surface plasmon resonance aluminum nanohole array refractometric biosensor. An aluminum surface passivation treatment based on oxygen plasma is developed in order to circumvent the undesired effects of oxidation and corrosion usually found in aluminum-based biosensors. Immersion tests in deionized water and device simulations are used to evaluate the effectiveness of the passivation process. A label-free bioassay based on biotin analysis through biotin-functionalized dextran-lipase conjugates immobilized on the biosensor-passivated surface in aqueous media is performed as a proof of concept to demonstrate the suitability of these nanostructured aluminum films for biosensing.

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Citations

Jul 18, 2015·Biosensors·Carlos Angulo BarriosRosa Puchades
Jan 30, 2015·Nanoscale·Carlos Angulo Barrios, Víctor Canalejas-Tejero
Feb 19, 2019·Nanoscale·Jie ZhengZhilin Yang
Nov 28, 2018·Sensors·Riikka PeltomaaMaría C Moreno-Bondi
Feb 15, 2020·Analytical and Bioanalytical Chemistry·Rafael CasquelPedro Herreros
May 4, 2016·Optics Express·Andrey LagarkovAndrey K Sarychev
May 1, 2021·Dalton Transactions : an International Journal of Inorganic Chemistry·Nguyen Thanh ThaoNhu Hoa Thi Tran
May 8, 2021·Scientific Reports·Tomas SabirovasGintaras Valincius
Sep 5, 2019·ACS Applied Materials & Interfaces·Zengyao WangGang Zhang
Feb 24, 2018··Yuri VygranenkoManuela Vieira

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