Evolution of anticancer, antioxidant and photocatalytic activities of biosynthesized MnO2 nanoparticles using aqueous extract of Sida acuta

Recently, scientists have become interested in the biosynthesis of nanoparticles due to the need to develop new methods of synthesis that are cost-effective, safe, and efficient. In a diversity of applications, nanoparticles of metal oxide are gaining increasing attention. In this study, biosynthesized MnO2 nanoparticles using Sida acuta extract, a non-toxic hydrocolloid, a natural, and investigated their potential anticancer and antioxidant applications. MnO2 nanoparticles were characterized using XRD, FESEM, UV-visible, and FTIR spectroscopies. The results demonstrated that the synthesized MnO2 nanoparticles possess a significant capacity for scavenging free radicals. However, MnO2 nanoparticles could serve as anticancer and antioxidants. MnO2 nanoparticles are highly harmful to a renal cancer cell line (ACHN), as shown by invitro cytotoxicity studies. In the presence of xenon lamp radiation, the synthesized MnO2 nanoparticles exhibited photocatalytic activity against the degradation of rhodamine-B and methylene blue dyes. The degradation efficiency of chemically and biosynthesized MnO2 nanoparticles against rhodamine-B and methylene blue dyes was determined to be 90% and 84%, respectively.