Nanoporous alumina enhanced surface plasmon resonance sensors

The signal enhancement of an easy to fabricate, nanoporous alumina assisted surface plasmon resonance (SPR) sensor is investigated. It is theoretically shown that the presence of a thin (under 200nm) porous alumina layer on top of an aluminum film supporting the surface plasmons, may significantly increase (over one order of magnitude) the sensitivity of the SPR method in the case where the adsorption of relatively small molecules is probed. The comparative experimental investigation of self-assembled monolayer formation on planar metal films and porous alumina layers verifies the theoretical predictions. Based on these results, we discuss the extended applicability of this setup in biosensor and other related applications.

[1]  E. Kretschmann,et al.  Notizen: Radiative Decay of Non Radiative Surface Plasmons Excited by Light , 1968 .

[2]  Wolfgang Knoll,et al.  Optical Characterization of Organic Thin Films and Interfaces with Evanescent Waves , 1991 .

[3]  K. Yamanouchi,et al.  Sensitivity of an anadically oxidized aluminium film on a surface acoustic wave sensor to humidity , 1994 .

[4]  Kenji Fukuda,et al.  Ordered Metal Nanohole Arrays Made by a Two-Step Replication of Honeycomb Structures of Anodic Alumina , 1995, Science.

[5]  R. Georgiadis,et al.  In situ kinetics of self-assembly by surface plasmon resonance spectroscopy , 1996 .

[6]  Günter Gauglitz,et al.  Surface plasmon resonance sensors: review , 1999 .

[7]  S J Tendler,et al.  Surface plasmon resonance analysis of dynamic biological interactions with biomaterials. , 2000, Biomaterials.

[8]  Irving P. Herman,et al.  Use of hybrid phenomenological and statistical effective-medium theories of dielectric functions to model the infrared reflectance of porous SiC films , 2000 .

[9]  C. Bourdillon,et al.  Formation of streptavidin-supported lipid bilayers on porous anodic alumina: electrochemical monitoring of triggered vesicle fusion. , 2001, Journal of the American Chemical Society.

[10]  Ralf B. Wehrspohn,et al.  Self-ordering Regimes of Porous Alumina: The 10% Porosity Rule , 2002 .

[11]  Dean J. Miller,et al.  Fabrication of Alumina Nanotubes and Nanowires by Etching Porous Alumina Membranes , 2002 .

[12]  C. Oh,et al.  Surface-plasmon photonic band gaps in dielectric gratings on a flat metal surface , 2003 .

[13]  Craig A. Grimes,et al.  Ammonia detection using nanoporous alumina resistive and surface acoustic wave sensors , 2003 .

[14]  Michael L. Myrick,et al.  Growth and Characterization of a Porous Aluminum Oxide Film Formed on an Electrically Insulating Support , 2003 .

[15]  W. Barnes,et al.  Surface plasmon subwavelength optics , 2003, Nature.

[16]  W. Knoll,et al.  Highly sensitive detection of processes occurring inside nanoporous anodic alumina templates : a waveguide optical study , 2004 .

[17]  Y. Mei,et al.  Nanoscale islands and color centers in porous anodic alumina on silicon fabricated by oxalic acid , 2004 .

[18]  A. Nassiopoulou,et al.  Ultra-thin porous anodic alumina films with self-ordered cylindrical vertical pores on a p-type silicon substrate , 2005 .

[19]  W. Knoll,et al.  Thin Films of Block Copolymers as Planar Optical Waveguides , 2005 .

[20]  G. Wurtz,et al.  Growth and properties of gold and nickel nanorods in thin film alumina , 2006 .

[21]  B. Bhushan,et al.  Phosphonate self-assembled monolayers on aluminum surfaces. , 2006, The Journal of chemical physics.

[22]  William L. Barnes,et al.  REVIEW ARTICLE: Surface plasmon polariton length scales: a route to sub-wavelength optics , 2006 .

[23]  C. Toprakcioglu,et al.  Adsorption Behavior of PS-PEO Diblock Copolymers on Silver and Alumina Surfaces: A Surface Plasmon Resonance Study , 2006 .

[24]  Zhi-mei Qi,et al.  Nanoporous leaky waveguide based chemical and biological sensors with broadband spectroscopy , 2007 .

[25]  Direct measurement of increased light intensity in optical waveguides coupled to a surface plasmon spectroscopy setup , 2007 .