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

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Jawad Sarfraz, Mykola Borzenkov, Erik Niemelä, Christian Weinberger, Björn Törngren, Emil Rosqvist, Maddalena Collini, Piersandro Pallavicini, John E. Eriksson, Jouko Peltonen, Petri Ihalainen, Giuseppe Chirico,
Publisher: Elsevier
Publication year: 2018
Journal: Applied Surface Science
Journal acronym: App.Surf.Sci
Volume number: 435
Start page: 1087
End page: 1095


Abstract

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.


Keywords

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

Last updated on 2019-18-09 at 06:31