TY  - JOUR
EP  - 1354
IS  - 7
UR  - https://www.osapublishing.org/ome/abstract.cfm?uri=ome-4-7-1345
SN  - 2159-3930
ID  - upm35593
TI  - Silicon nanopillar arrays with SiO2 overlayer for biosensing application
AV  - public
N2  - We present the fabrication of silicon dioxide (SiO2) coated silicon nanopillar array structures and demonstrate their application as sensitive optical biosensors. Colloidal lithography, plasma dry etching and deposition processes are used to fabricate SiO2 coated Si nanopillar arrays with two different diameters and periods. Proof of concept bio recognition experiments are carried out with the bovine serum albumin (BSA)/antiBSA model system using Fourier transform visible and IR spectrometry (FT-VIS-IR) in reflection mode. A limit of detection (LoD) value of 5.2 ng/ml is estimated taking in to account the wavenumber uncertainty in the measurements.
A1  - Choudhury, B. Dev
A1  - Casquel del Campo, Rafael
A1  - Bañuls, María José
A1  - Sanza Gutiérrez, Francisco Javier
A1  - Laguna Heras, Maria Fe
A1  - Holgado Bolaños, Miguel
A1  - Puchades, Rosa
A1  - Maquieira, Ángel
A1  - Angulo Barrios, Carlos
A1  - Anand, S.
VL  - 4
SP  - 1345
KW  - OCIS codes: (040.6040) Silicon; (110.4235) Nanolithography; (180.3170) Interference microscopy; (220.4241) Nanostructure fabrication; (260.3160) Interference; (280.1415) Biological sensing and sensors; (280.4788) Optical sensing and sensors; (300.6300) Spectroscopy
KW  -  Fourier transforms; (310.1860) Deposition and fabrication.
JF  - Optical Materials Express
Y1  - 2014///
PB  - OSA Publishing
ER  -