Graphened IR screens: A new spectroscopic platform for bio-species

Amrita Banerjee, Dieter Moeller, Haim Grebel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Metallo-dielectric screens are periodic structures, which are at resonance with the infrared (IR) wavelength of interest: a standing wave of surface charges is formed at resonance conditions, which enables transmission or, reflection of certain IR bands. Graphene is a monolayer thick crystal of carbon. It is chemically inert and exhibits very large electronic mobility. Recently, we succeeded in fabricating mono and a few-layered suspended graphene on top of these screens. We combined these two unique components in fabricating novel platforms, which enhance IR signals of soft bio-species. Specifically, we used these platforms to examine IR spectra of a model protein, cytochrome c from a bovine heart tissue. Clear Raman signal variation as a function of platform orientation has been demonstrated. Accentuation of the IR absorption spectra was shown as well.

Original languageEnglish (US)
Title of host publicationMaterials for Optical Sensors in Biomedical Applications
Pages98-102
Number of pages5
StatePublished - Dec 1 2008
Event2008 MRS Fall Meeting - Boston, MA, United States
Duration: Dec 2 2008Dec 4 2008

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1133
ISSN (Print)0272-9172

Other

Other2008 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period12/2/0812/4/08

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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