Preparation of titanium dioxide nanoparticles from Solanum Tuberosum peel extract and its applications

Abstract

The present study describes a method for the preparation of green titanium dioxide (TiO₂) nanoparticles from the peel of Solanum tuberosum, commonly known as potato, and the potato peel being a kitchen waste. The green synthesized TiO₂ (G- TiO₂) nanoparticles were characterized using UV-visible spectroscopy, dynamic light scattering, scanning electron microscopy, TEM, XRD, and FTIR spectroscopy. The photocatalytic activity of the G- TiO₂ nanoparticles was also shown using the dye bromophenol blue. To explore the biocompatibility of the G- TiO₂, the cell viability in normal as well as cancer cells was assessed. Further, the in vivo toxicity of the G- TiO₂ nanoparticles was assessed using zebrafish embryos. The novelty of the present invention is to utilize kitchen waste for a useful purpose for the synthesis of titanium dioxide nanoparticles which is known to have UV light scavenging properties. Moreover, the potato peel is a natural antioxidant and possesses a skin-lightening effect. A combination of the potato peel extract and titanium dioxide prepared using the extract will have a combinatorial effect for protecting UV light exposure to the skin and lightening the skin colour.

Keywords:

• Potato peel
• titanium dioxide nanoparticles
• photocatalytic activity
• bionanotechnology
• biocompatibility

Acknowledgment

The authors are grateful to Chettinad Academy of Research and Education for providing funding (Grant Number-Ref No. 004/Regr./AR-Research/2022-06). B.D. acknowledge Chettinad Academy of Research and Education for providing the PhD fellowship.

Ethical approval Consent to participate

Yes

Authors’ contribution

Conceptualization: K.G.

Experimentation: K.G., D.B., A.K.P., and A.G. Article search, Writing first draft: K.G. Finalizing the manuscript: K.G., D. B., A.K.P., and A.G.

Disclosure statement

No potential conflict of interest was reported by the author(s). All authors certify that they have no affiliations with or involvement in any organization or entity with any financial interest or non-financial interest in the subject matter or materials discussed in this manuscript.

Data availability statement

The data that support the findings of this study are available from the corresponding author, [K.G.], upon reasonable request.

Additional information

Funding

The study was funded by Chettinad Academy of Research and Education, Grant No. 004/Regr./AR-Research/2022-06.