Augmenting Antioxidative Properties of Cerium Oxide Nanomaterial with Andrographis paniculata Mediated Synthesis and Investigating its Biomedical Potentials.

Extensive interest has been poured into the production of sustainable nanomaterials. We report the fabrication of cerium oxide nanomaterial (CNP)utilizing crude extracts of Andrographis paniculata. This synthesis route devises a sustainable approach with the implementation of a less energy-intensive process and avoids hazardous chemicals. The crude extracts of Andrographis paniculata (cAP) act simultaneously as a reducing and stabilizing agent and support the nucleation of CNP leading to unique physiochemical properties. The cAP-CNP conjugate is found in the size range of 150nm with signature UV peaks at 310 nm indicating Ce+4 surface oxidation state. Scanning electron microscope and X-ray diffraction analysis of cAP-CNP conjugate indicates the ultra-structure of dry powder and polycrystalline signature peaks with 111, 200, 220 and 311 crystal planes indicating pure cubic fluorite structure. Further cAP-CNP conjugate also reports high H2O2(80%)and moderate superoxide anion (40%) antioxidative scavenging. The cAP-CNPnanomaterial conjugates exhibit excellent antimicrobial behavior with a reduction of 60% E.colibacterial growth. Similarly,cAP-CNP conjugate exhibits alpha-amylase inhibition (80%) activity indicating its prospects in diabetics’management.In-vitro analysis results the biocompatibility with 85% skin keratinocyte cell growth. Anti-inflammatory assay revealed IL-6 (89%) and TNF-alpha (81%) reduced expression. Overall, cAP-CNP demonstrates a sustainable approach to prospective biomedical applications.