Graphene Oxide Induced Osteogenesis Quantification by In-Situ 2D-Fluorescence Spectroscopy

Valentina Palmieri, Marta Barba, Lorena Di Pietro, Claudio Conti, Marco De Spirito, Wanda Lattanzi, Massimiliano Papi

Research output: Contribution to journalArticle

Abstract

Graphene and graphene oxide can promote the adhesion, growth and differentiation of mesenchymal stem cells. Further, graphene surface coatings accelerate the differentiation of human mesenchymal stem cells acting as osteogenic inducers. Quantification of the osteogenic induction is conventionally performed with Alizarin Red S (ARS), an anthraquinone derivative used to identify calcium deposits in tissue sections and cell cultures. The ARS staining is quite versatile because the dye forms an Alizarin Red S⁻calcium complex that can be extracted from the stained monolayer of cells and readily assayed by absorbance measurements. Direct visualization of stained deposits is also feasible; however, an in-situ visualization and quantification of deposits is possible only on transparent supports and not on thick opaque materials like ceramics and graphene composites that are well-known inducers of osteogenesis. In this manuscript, the shape of the 2D-fluorescence spectra of the ARS-calcium complex is used to develop a method to detect and monitor the in-situ differentiation process occurring during the osteogenic induction mediated by opaque graphene oxide surfaces.

Original languageEnglish
JournalInternational Journal of Molecular Sciences
Volume19
Issue number11
DOIs
Publication statusPublished - Oct 26 2018

Fingerprint

osteogenesis
Graphite
Alizarin
Fluorescence Spectrometry
Fluorescence spectroscopy
Osteogenesis
Oxides
Graphene
graphene
fluorescence
oxides
Deposits
spectroscopy
stem cells
deposits
Stem cells
Mesenchymal Stromal Cells
calcium
Calcium
induction

Keywords

  • Alizarin Red S
  • fluorescence spectroscopy
  • graphene oxide
  • osteogenesis

ASJC Scopus subject areas

  • Catalysis
  • Molecular Biology
  • Spectroscopy
  • Computer Science Applications
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

Cite this

Graphene Oxide Induced Osteogenesis Quantification by In-Situ 2D-Fluorescence Spectroscopy. / Palmieri, Valentina; Barba, Marta; Di Pietro, Lorena; Conti, Claudio; De Spirito, Marco; Lattanzi, Wanda; Papi, Massimiliano.

In: International Journal of Molecular Sciences, Vol. 19, No. 11, 26.10.2018.

Research output: Contribution to journalArticle

Palmieri, Valentina ; Barba, Marta ; Di Pietro, Lorena ; Conti, Claudio ; De Spirito, Marco ; Lattanzi, Wanda ; Papi, Massimiliano. / Graphene Oxide Induced Osteogenesis Quantification by In-Situ 2D-Fluorescence Spectroscopy. In: International Journal of Molecular Sciences. 2018 ; Vol. 19, No. 11.
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