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Perylene Derivatives As Useful SERRS Reporters, Including Multiplexing Analysis
- Tenori, Eleonora, Colusso, Andrea, Syrgiannis, Zois, Bonasera, Aurelio, Osella, Silvio, Ostric, Adrian, Lazzaroni, Roberto, Meneghetti, Moreno, Prato, Maurizio
- ACS Applied Materials & Interfaces 2015 v.7 no.51 pp. 28042-28048
- Raman spectroscopy, energy, nanogold
- Five perylene bisimide (PBI) derivatives were designed and synthesized, on the basis of quantum-chemical calculations. The influence of halogen substituents on the shape and energy of the frontier orbitals and the Raman spectra were calculated, in the prospect use in surface-enhanced resonance Raman scattering (SERRS) studies. The corresponding experiments confirmed a very strong SERRS response in the presence of pristine (i.e., uncoated) gold nanoparticles. These spectra can be used for multiplexing measurements, namely measurements in which, by using a single laser excitation, one can recognize the simultaneous presence of several analytes.