By use of resonantly-enhanced mechanical photoexpansion technique we have performed mid-infrared vibrational spectroscopy and imaging on the nanoscale of individual purple membranes deposited on ultraflat gold substrate. The observed Amide I and Amide II bands of proteins are in good agreement with the far-field infrared transmission spectra previously collected on large numbers of membranes. A comparison between the near-field signal of single purple membranes and that of two overlapping membranes is presented. The results are discussed by adopting simple thermal and electromagnetic considerations.

Vibrational contrast imaging and nanospectroscopy of single cell membranes by mid-IR resonantly-enhanced mechanical photoexpansion / Giliberti, V.; Badioli, M.; Baldassarre, L.; Nucara, A.; Calvani, P.; Ritter, E.; Puskar, L.; Hegemann, P.; Schade, U.; Ortolani, M.. - ELETTRONICO. - 2016-:(2016), pp. 1-3. (Intervento presentato al convegno 41st International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2016 tenutosi a Bella Center, dnk nel 2016) [10.1109/IRMMW-THz.2016.7758341].

Vibrational contrast imaging and nanospectroscopy of single cell membranes by mid-IR resonantly-enhanced mechanical photoexpansion

Giliberti, V.;Badioli, M.;Baldassarre, L.;Nucara, A.;Calvani, P.;Ortolani, M.
2016

Abstract

By use of resonantly-enhanced mechanical photoexpansion technique we have performed mid-infrared vibrational spectroscopy and imaging on the nanoscale of individual purple membranes deposited on ultraflat gold substrate. The observed Amide I and Amide II bands of proteins are in good agreement with the far-field infrared transmission spectra previously collected on large numbers of membranes. A comparison between the near-field signal of single purple membranes and that of two overlapping membranes is presented. The results are discussed by adopting simple thermal and electromagnetic considerations.
2016
41st International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2016
Energy Engineering and Power Technology; Electrical and Electronic Engineering
04 Pubblicazione in atti di convegno::04c Atto di convegno in rivista
Vibrational contrast imaging and nanospectroscopy of single cell membranes by mid-IR resonantly-enhanced mechanical photoexpansion / Giliberti, V.; Badioli, M.; Baldassarre, L.; Nucara, A.; Calvani, P.; Ritter, E.; Puskar, L.; Hegemann, P.; Schade, U.; Ortolani, M.. - ELETTRONICO. - 2016-:(2016), pp. 1-3. (Intervento presentato al convegno 41st International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2016 tenutosi a Bella Center, dnk nel 2016) [10.1109/IRMMW-THz.2016.7758341].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1027828
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