Photo-thermal and cytotoxic properties of inkjet-printed copper sulfide films on biocompatible latex coated substrates

Jawad Sarfraz, Mykola Borzenkov, Erik Niemelä, Christian Weinberger, Björn Törngren, Emil Rosqvist, Maddalena Collini, Piersandro Pallavicini, John Eriksson, Jouko Peltonen, Petri Ihalainen, Giuseppe Chirico

Research output: Contribution to journalArticleScientificpeer-review

14 Citations (Scopus)


Inkjet-printing of metal nanoparticles is a particularly promising technique for the fabrication and modification of surfaces with a multifunctional nature. Recently copper sulfide nanoparticles (CuS NPs) have attracted wide interest due to a range of valuable properties including long term stability, photo-thermal activity, ease of synthesis and low cost. In the present study, printed CuS patterns were successfully fabricated on latex coated paper substrates and characterized by means of atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), UV–Vis-NIR spectroscopy, and grazing incidence X-ray diffraction (GID). The resulted patterns displayed pronounced photo-thermal effect under Near Infrared Irradiation (NIR) even with relatively low laser power. Finally, by utilizing an automated real-time imaging platform it was possible to verify that the CuS printed film was not cytotoxic to human dermal fibroblast cells (HDF). The pronounced photo-thermal properties and nontoxic nature of these printed low-cost flexible CuS films make them promising candidates for fabrication of devices with localized photo-thermal effect suitable for biomedical applications.

Original languageUndefined/Unknown
Pages (from-to)1087–1095
JournalApplied Surface Science
Publication statusPublished - 2018
MoE publication typeA1 Journal article-refereed


  • Photo-thermal effect
  • Cytotoxicity
  • Copper Sulfide
  • Flexible substrate
  • ink-jet printing
  • HDF

Cite this