Curcumin loaded gold nanoparticles–chitosan/sodium alginate nanocomposite for nanotheranostic applications

Abstract

A solvent casting technique was used for the preparation of biomimetic nanocomposites scaffolds at three various concentrations of Curcumin loaded gold nanoparticles (Cur-AuNPs-1, 1.5, and 2 ml) as filler materials with chitosan-sodium alginate composite. The physico-chemical properties of prepared Cu-Au NPs and biomimetic nanocomposites were analyzed using various characterization techniques. In vitro biocompatibility of biomimetic nanocomposites are determined using simulated body fluid for biomineralization property, HAp formation and phosphate buffer saline (PBS) for swelling property, protein adsorption. Antibacterial activity of Cur-Au NPs and their nanocomposites carried out against Escherichia coli (E. coli) and Staphylococcus aureus. In vitro cytotoxicity of Cur-AuNPs is identified against UC-6 and MDA-MB 231 cell lines. The use of above studies and activity of Cur-AuNPs with contain biomimetic nanocomposites can adoptable for nanotheranostics.

GRAPHICAL ABSTRACT

Keywords:

• Curcumin
• nano gold
• polymeric composite
• bioactivity

Acknowledgments

We thank Sharon George, Jain University (Deemed to be University), Bangalore, India for providing FE-SEM analysis.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This research work was supported by Department of Science and Technology (DST), India and German Academic Exchange Service (DAAD), Germany, for the financial support under DST-DAAD project-based personal exchange programme (PPP) [F. No. INT/FRG/DAAD/P-13/2017 dt.28.08.2017]; authors also thank DST-Fund for Improvement of Science and Technology (DST-FIST) for financial assistance to use Micro vicker’s hardness facility at our center [Vide FIST No. 368 dt. 14.01.2016].