Metal/conductive oxide plasmonic structures for surface-enhanced infrared absorption spectroscopy

Tadaaki Nagao, Kai Chen, Thang Duy Dao, Satoshi Ishii, Robert P. H. Chang, Chung V. Hoang, Makiko Oyama, Miki Maeda

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Surface-Enhanced Infrared Absorption (SEIRA) is a phenomena in which vibrational signals from trace amounts of analyte or sub-monolayer molecules adsorbed on solid surfaces are dramatically enhanced in their intensities. By utilizing the localized surface plasmon resonances of infrared optical antennas and metamaterials, strong signal enhancements of molecules become operative in an effective manner to realize high sensitivity vibrational sensing. Recent developments in nanostructure fabrication techniques as well as their surface functionalization techniques have enabled us to propose and fabricate various types of advanced SEIRA nanodevices in nanophotonics and in nano-biosensing fields as well as in analytical chemistry. Moreover, recent advances in searching appropriate infrared plasmonic materials beyond noble metals have widened the possibilities to utilize low-cost base metal and conductive metal oxides for SEIRA applications. In this review article, we introduce the detection of dilute molecules and pathogenic enzymes in solution by an in situ ATR-IR method, as well as protein SEIRA sensing by surface-functionalized Al optical antennas and metamaterials. We also introduce our new approach to utilize infrared surface plasmons in optical antenna array made of phosphonic acid-functionalized conductive oxide nanorods to detect proteins with high specificity and sensitivity.

Original languageEnglish
Pages (from-to)81-94
Number of pages14
JournalBunseki Kagaku
Volume67
Issue number2
DOIs
Publication statusPublished - Jan 1 2018

Fingerprint

Infrared absorption
Absorption spectroscopy
Oxides
Infrared spectroscopy
Metals
Metamaterials
Infrared radiation
Molecules
Antennas
Nanophotonics
Plasmons
Surface plasmon resonance
Precious metals
Nanorods
Antenna arrays
Monolayers
Nanostructures
Membrane Proteins
Fabrication
Enzymes

Keywords

  • Aluminum
  • Conductive oxides
  • Phosphonic acid
  • Plasmons
  • Surface-enhanced infrared absorption (SEIRA)

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Metal/conductive oxide plasmonic structures for surface-enhanced infrared absorption spectroscopy. / Nagao, Tadaaki; Chen, Kai; Dao, Thang Duy; Ishii, Satoshi; Chang, Robert P. H.; Hoang, Chung V.; Oyama, Makiko; Maeda, Miki.

In: Bunseki Kagaku, Vol. 67, No. 2, 01.01.2018, p. 81-94.

Research output: Contribution to journalArticle

Nagao, Tadaaki ; Chen, Kai ; Dao, Thang Duy ; Ishii, Satoshi ; Chang, Robert P. H. ; Hoang, Chung V. ; Oyama, Makiko ; Maeda, Miki. / Metal/conductive oxide plasmonic structures for surface-enhanced infrared absorption spectroscopy. In: Bunseki Kagaku. 2018 ; Vol. 67, No. 2. pp. 81-94.
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