Dario P. Benedetti, Jie Zhang, Thomas J. Tague Jr, John R. Lombardi and Marco Leona In situ microanalysis of organic colorants by inkjet colloid deposition surface-enhanced Raman scattering Journal of Raman Spectroscopy 45
A compact piezoelectric inkjet head integrated with the optical system of a large-stage Raman microscope was used to accurately and precisely deliver colloid nanodroplets onto a target for surface-enhanced Raman spectroscopy analysis. The approach is functionally nondestructive as the amount of silver delivered and the area affected are too small to be detected by visual observation. The method was successfully applied to the analysis of gel pen ink on paper and of a 19th century Japanese woodblock print.
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