Distinguishing Individual Vibrational Fingerprints:  Single-Molecule Surface-Enhanced Resonance Raman Scattering from One-to-One Binary Mixtures in Langmuir−Blodgett Monolayers

2007 ◽  
Vol 79 (7) ◽  
pp. 2728-2734 ◽  
Author(s):  
Paul J. G. Goulet ◽  
Ricardo F. Aroca
2005 ◽  
Vol 45 (supplement) ◽  
pp. S197
Author(s):  
K. Watanabe ◽  
M. Tsunoda ◽  
T. Ueno ◽  
M. Yamagishi ◽  
T. Funatsu

2001 ◽  
Vol 73 (15) ◽  
pp. 3674-3678 ◽  
Author(s):  
Carlos J. L. Constantino ◽  
Tibebe Lemma ◽  
Patricia A. Antunes ◽  
Ricardo Aroca

Nanoscale ◽  
2016 ◽  
Vol 8 (6) ◽  
pp. 3337-3349 ◽  
Author(s):  
Sylwester Gawinkowski ◽  
Maria Pszona ◽  
Alexandr Gorski ◽  
Joanna Niedziółka-Jönsson ◽  
Izabela Kamińska ◽  
...  

Single molecule surface-enhanced resonance Raman scattering (SERRS) spectra have been obtained for the parent porphycene (Pc-d0) and its deuterated isotopologue (Pc-d12), located on gold and silver nanoparticles.


2003 ◽  
Vol 57 (6) ◽  
pp. 649-654 ◽  
Author(s):  
Carlos J. L. Constantino ◽  
Tibebe Lemma ◽  
Patricia A. Antunes ◽  
Paul Goulet ◽  
Ricardo Aroca

Surface-enhanced resonance Raman scattering (SERRS) is used for single-molecule detection from spatially resolved 1-μm2 sections of a Langmuir–Blodgett (LB) monolayer deposited onto a Ag film. The target molecule, bis (benzimidazo) thioperylene (BZP), is dispersed in an arachidic acid monomolecular layer containing one BZP molecule per μm2, which is also the probing area of the Raman microscope. For concentrated samples (attomole quantities in the field of view), average SERRS, surface-enhanced fluorescence (SEF), and Raman imaging, including line mapping and global images at different temperatures, were recorded. Single-molecule SERRS spectra, obtained using an LB monolayer, present changes in bandwidth and relative intensities, highlighting the properties of single-molecule SERRS that are lost in average SERRS measurements of mixed LB monolayers obtained at the same temperatures. Also, the dilute system phenomenon of blinking is discussed with regard to results obtained from LB monolayers. The dilution process used in the single-molecule LB SERRS work is independently supported by fluorescence results obtained from very dilute solutions with monomer concentrations down to 10−12 M.


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