RT Journal Article
SR 00
ID 10.1364/OME.4.001345
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.
T1 Silicon nanopillar arrays with SiO2 overlayer for biosensing application
JF Optical Materials Express
YR 2014
FD 2014
VO 4
IS 7
SP 1345
OP 1354
K1 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, Fourier transforms; (310.1860) Deposition and fabrication.
AB 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.
PB OSA Publishing
SN 2159-3930
LK https://oa.upm.es/35593/
UL https://www.osapublishing.org/ome/abstract.cfm?uri=ome-4-7-1345