Monitoring of optimized SERS active gel substrates for painting and paper substrates by unilateral NMR profilometry

Authors

  • Brenda Doherty,

    Corresponding author
    1. Istituto CNR di Scienze e Tecnologie Molecolari (CNR-ISTM), c/o Dipartimento di Chimica, Università degli Studi di Perugia, Perugia, Italy
    2. Centro di eccellenza SMAArt (Scientific Methodologies applied to Archaeology and Art) c/o Dipartimento di Chimica, Università degli Studi di Perugia, Perugia, Italy
    • Correspondence to: Brenda Doherty, Istituto CNR di Scienze e Tecnologie Molecolari (CNR-ISTM), c/o Dipartimento di Chimica, Università degli Studi di Perugia, via Elce di Sotto 8, I-06123 Perugia, Italy.

      E-mail: b.bd.doherty@talk21.com

    Search for more papers by this author
  • Federica Presciutti,

    1. Università degli Studi di Perugia c/o Dipartimento di Chimica, Perugia, Italy
    2. Centro di eccellenza SMAArt (Scientific Methodologies applied to Archaeology and Art) c/o Dipartimento di Chimica, Università degli Studi di Perugia, Perugia, Italy
    Search for more papers by this author
  • Antonio Sgamellotti,

    1. Università degli Studi di Perugia c/o Dipartimento di Chimica, Perugia, Italy
    2. Centro di eccellenza SMAArt (Scientific Methodologies applied to Archaeology and Art) c/o Dipartimento di Chimica, Università degli Studi di Perugia, Perugia, Italy
    Search for more papers by this author
  • Brunetto G. Brunetti,

    1. Università degli Studi di Perugia c/o Dipartimento di Chimica, Perugia, Italy
    2. Centro di eccellenza SMAArt (Scientific Methodologies applied to Archaeology and Art) c/o Dipartimento di Chimica, Università degli Studi di Perugia, Perugia, Italy
    Search for more papers by this author
  • Costanza Miliani

    1. Istituto CNR di Scienze e Tecnologie Molecolari (CNR-ISTM), c/o Dipartimento di Chimica, Università degli Studi di Perugia, Perugia, Italy
    2. Centro di eccellenza SMAArt (Scientific Methodologies applied to Archaeology and Art) c/o Dipartimento di Chimica, Università degli Studi di Perugia, Perugia, Italy
    Search for more papers by this author

  • This article is part of the special issue of the Journal of Raman Spectroscopy entitled “Raman in Art and Archaeology 2013” edited by Polonca Ropret and Juan Manuel Madariaga.

Abstract

In order to realize a surface enhanced Raman spectroscopy (SERS) gel protocol with portable Raman instrumentation, this contribution oversees the optimization of a removable SERS active methylcellulose gel and the applicability of an innovative gelatin substrate. Analytical evaluations by non-invasive portable nuclear magnetic resonance (NMR) profilometry with regards to methylcellulose and gelatin film penetration and removal from an unvarnished painted surface and commercial dyed paper substrates have been carried out, respectively, following successful SERS measurements. Both gels have been specifically prepared in accordance to the substrate under exam so as to simultaneously permit sufficient surface interaction for Raman enhancements to be recorded with limited penetration into or subsequent damage on removal of the matrix under study. This work continues to bridge the gap towards non-invasive SERS measurements and in-situ SERS measurements. Copyright © 2014 John Wiley & Sons, Ltd.

Ancillary