eng Oriental Scientific Publishing Company Material Science Research India 0973-3469 2026-01-09 22 3 206 217 23976 article Shivnandan Ram 1 Rajesh Kumar 1 Anil Kumar Delta 1 Rohini Kumari 1 Smriti Singh 1 Department of Chemistry, Ranchi University, Ranchi Jharkhand, India. An environmentally friendly substitute for traditional chemical processes is the green production of Titanium dioxide (TiO₂) nanoparticles. This study report comprehensively examines the synthesis, characterisation, and uses of TiO₂ nanoparticles using Swertiachirata leaf extract as a capping and reducing agent. Rich in bioactive phytochemicals such xanthones, terpenoids, flavonoids, and seco-iridoid glycosides, the plant extract aids in the reduction of titanium precursors under mild reaction conditions without the need of toxic chemicals. The  nanoparticles synthesized were examined by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), FESEM EDX, and UV-visible spectrophotometry. The resultant TiO₂ nanoparticles are found to be of spherical to nearly spherical shape, anatase phase crystallinity, and particle diameters between 15 and 50 nm. This environmentally sustainable synthesis method obviates the necessity for toxic reducing agents and energy-intensive processes, presenting potential applications in environmental cleanup, biomedical devices, and pharmaceutical formulations. https://www.materialsciencejournal.org/vol22no3/green-synthesis-of-tio%e2%82%82-nanoparticles-using-swertia-chirata-extract-an-eco-friendly-approach-to-nanomaterial-production/ Antimicrobial Activity Green synthesis Phytochemical Reduction Photo Catalysis Swertiachirata TiO₂ nanoparticles