TY - JOUR
T1 - Performance characteristics of bio-inspired metal nanostructures as surface-enhanced Raman scattered (SERS) substrates
AU - Areizaga-Martinez, Hector I.
AU - Kravchenko, Ivan
AU - Lavrik, Nickolay V.
AU - Sepaniak, Michael J.
AU - Hernández-Rivera, Samuel P.
AU - De Jesús, Marco A.
N1 - Publisher Copyright:
© Society for Applied Spectroscopy.
PY - 2016/9/1
Y1 - 2016/9/1
N2 - The fabrication of high-performance plasmonic nanomaterials for bio-sensing and trace chemical detection is a field of intense theoretical and experimental research. The use of metal-silicon nanopillar arrays as analytical sensors has been reported with reasonable results in recent years. The use of bio-inspired nanocomposite structures that follow the Fibonacci numerical architecture offers the opportunity to develop nanostructures with theoretically higher and more reproducible plasmonic fields over extended areas. The work presented here describes the nanofabrication process for a series of 40 μm × 40 μm bio-inspired arrays classified as asymmetric fractals (sunflower seeds and romanesco broccoli), bilaterally symmetric (acacia leaves and honeycombs), and radially symmetric (such as orchids and lily flowers) using electron beam lithography. In addition, analytical capabilities were evaluated using surface-enhanced Raman scattering (SERS). The substrate characterization and SERS performance of the developed substrates as the strategies to assess the design performance are presented and discussed.
AB - The fabrication of high-performance plasmonic nanomaterials for bio-sensing and trace chemical detection is a field of intense theoretical and experimental research. The use of metal-silicon nanopillar arrays as analytical sensors has been reported with reasonable results in recent years. The use of bio-inspired nanocomposite structures that follow the Fibonacci numerical architecture offers the opportunity to develop nanostructures with theoretically higher and more reproducible plasmonic fields over extended areas. The work presented here describes the nanofabrication process for a series of 40 μm × 40 μm bio-inspired arrays classified as asymmetric fractals (sunflower seeds and romanesco broccoli), bilaterally symmetric (acacia leaves and honeycombs), and radially symmetric (such as orchids and lily flowers) using electron beam lithography. In addition, analytical capabilities were evaluated using surface-enhanced Raman scattering (SERS). The substrate characterization and SERS performance of the developed substrates as the strategies to assess the design performance are presented and discussed.
KW - Bio-inspired nanostructures
KW - Fibonacci sequence
KW - lithography
KW - surface-enhanced spectroscopy
UR - http://www.scopus.com/inward/record.url?scp=84988448019&partnerID=8YFLogxK
U2 - 10.1177/0003702816662596
DO - 10.1177/0003702816662596
M3 - Article
AN - SCOPUS:84988448019
SN - 0003-7028
VL - 70
SP - 1432
EP - 1445
JO - Applied Spectroscopy
JF - Applied Spectroscopy
IS - 9
ER -