Abstract
Snake-bite gives rise to significant socio-economic, and limitations of antivenom have raised the necessity for the development of novel neutralising compounds. The present study concentrates on evaluating the neutralisation potential of Copper nanoparticles, Leucas zeylanica leaf extracts and Metal-Herbal Nanocomposite (MHNC) against Naja naja and Bungarus caeruleus venoms. The antigenic potency of snake venoms was determined by gel precipitation test. Leucas zeylanica leaves were used for extraction, and extracts were further purified by column chromatography. Size of Leucas zeylanica extract was found to be 86.7±7.1nm and 249.4±27.3nm for MHNC. Zeta potential values determined the Stability of the MHNC. MHNC showed higher neutralisation to venoms than the Leucas zeylanica extracts. In direct hemolysis, the efficiency of Naja naja and Bungarus caeruleus venoms treated with Leucas zeylanica leaf extract was found to be 30% and 27.2%, whereas MHNC showed 16.1% against Naja naja venom and 17.1% Bungarus caeruleus venom. From Indirect analysis, Naja naja and Bungarus caeruleus venom were able to produce 28mm and 26mm diameter hemolytic halo zones. On treatment with MHNC, the zones were reduced to 15mm and 11mm than Leucas zeylanica extract. This result indicates the MHNC can be used for the treatment of snake bites.
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