Green Synthesis of Gold Nanoparticles Using L. Floral Extract.

The developments of green-based metallic nanoparticles (gold) are gaining tremendous interest, having potential applications in health care and diagnosis. Therefore, in the present study, flower filtered extract was used as a reducing and stabilizing agent to synthesize gold nanoparticles (PtubAuNPs). The PtubAuNPs were extensively characterized by UV-visible spectroscopy, Fourier transform infrared spectroscopy, transmission electron microscopy, and X-ray diffraction.

One pot green fabrication of metallic silver nanoscale materials using L. and assessment of their bactericidal activity.

In this study, the leaf extract of an important medicinal plant L. (CC) was employed as a green reducing agent to synthesise highly-stable silver nanoparticles (CCAgNPs). The reduction of Ag to Ag nanoparticles was initially observed by a colour change which generates an intense surface plasmon resonance peak at 417 nm using a UV-Vis spectrophotometer.

(Papaya) latex: a new paradigm to combat against dengue and filariasis vectors and (Diptera: Culicidae).

This study manifests the larvicidal efficacy of latex extract and silver nanoparticles (CPAgNPs) synthesized using latex, against developing immature juveniles of and . Briefly, the latex was collected and fractioned with different solvents such as chloroform, methanol and aqueously. The obtained crude extracts were subjected to larvicidal activity in the dose-dependent method.

Isolation of limonoid compound (Hamisonine) from endophytic fungi Penicillium oxalicum LA-1 (KX622790) of Limonia acidissima L. for its larvicidal efficacy against LF vector, Culex quinquefasciatus (Diptera: Culicidae).

Upon screening for novel and potential biocompounds with larvicidal activities, we successfully isolated hamisonine (HMSN) a limonoid compound from endophytic fungi Penicillium oxalicum LA-1 of Limonia acidissima. The extracted compound structure was elucidated by spectral studies such as UV-vis spectroscopy, thin-layer chromatography, FTIR, LC-ESI-MS, H NMR, and C NMR upon comparing with the spectral data available in the literature. Further, the isolated HMSN was tested against III and IV instar Culex quinquefasciatus larvae.

Xenorhabdus stockiae KT835471-mediated feasible biosynthesis of metal nanoparticles for their antibacterial and cytotoxic activities.

In this study, extracellular metabolites of symbiotic bacteria Xenorhabdus stockiae (KT835471) was employed for the synthesis of silver (XsAgNPs) and gold nanoparticles (XsAuNPs). Synthesized NPs were characterized using high throughput instrumentation which confirms the generation of stable, crystalline XsAgNPs and XsAuNPs with the mean size of 14 ± 6 and 14 ± 5, respectively. Further, the NPs exhibits an excellent bactericidal effect against six different pathogens.

Impact of Coastal Pollution on Microbial and Mineral Profile of Edible Oyster (Crassostrea rivularis) in the Coastal Waters of Andaman.

The impact of coastal pollution was studied using edible oysters, Crassostrea rivularis as an indicator at two sites viz., North Wandoor (NW) and Phoenix Jetty (PJ) in Port Blair, Andaman. The hydrographic parameters showed that nitrite, nitrate and phosphate concentration were less and dissolved oxygen were more at NW compared to PJ.