SYNTHESIS OF TUNGSTEN NANOPARTICLES FOR THEIR BIOMEDICAL APPLICATION

The application of nanobiotechnology is an emerging area of nanoscience and nanotechnology. In the present studies, tungsten nanoparticles were synthesized and reduced chemically, and character-rization was done by UV, SEM, TEM, FT-IR, and XRD. The size of nanoparticles was found to be 20 nm. Further, these nanoparticles were teste for various biological applications. In antimicrobial activity, it was observed that potent efficacy was observed against Streptomyces grisveus (12 mm) at 80 µg/ml while in fungus maximum activity was observed against Penicillium funicolusum (24 mm) at the same dose. The antiplatelet activity of nanoparticles was investigated by Prothrombin (PT) and Activated Partial Thromboplastin Time (APTT). In both PT and APTT assay, maximum activity was observed at 40 µg/ml (295 sec and 80 sec, respectively). Cytotoxicity was also studied by MTT assay against various cell lines. Against MCF-7, potent activity was observed at 200 µg/ml, while in 3T3 it was observed at 500 µg/ml. Finally, it was observed that these nanoparticles have potent activity against tuberculosis at 1000 µg/ml. The result showed the nanoparticles are inexpensive and safe without any toxicity and consequently does not have any side effects.