Influence of intrinsic spin ordering in LaSrCoFeO and BaSrCoFeO towards electrocatalysis of oxygen redox reaction in solid oxide cell.

The redox reaction of oxygen (OER & ORR) forms the rate determining step of important processes like cellular respiration and water splitting. Being a spin relaxed process governed by quantum spin exchange interaction, QSEI (the ground triplet state in O is associated with singlet oxygen in HO/OH), its kinetics is sluggish and requires inclusion of selective catalyst. Functionality and sustainability of solid oxide cell involving fuel cell (FC) and electrolyzer cell (EC) are also controlled by ORR (oxygen redox reaction) and OER (oxygen evolution reaction).

Synthesis of drug conjugated magnetic nanocomposite with enhanced hypoglycemic effects.

In the present study, a magnetic nanocomposite (magnetite FeO and hematite FeO) has been successfully synthesized by the sol-gel method and coated with polyvinyl alcohol (PVA) followed by conjugation of anti-diabetic drug metformin. Detailed structural and microstructural characterization of the nanocomposite (NP) and drug conjugated nanocomposite (NP-DC) are analyzed by the Rietveld refinement of respective XRD patterns, FTIR analysis, UV-Vis spectroscopy, SEM and TEM results. SEM and TEM image analyses reveal the spherical morphology and average size of NP, PVA coated nanoparticles (NP-PVA) and NP-DC samples, indicating a suitable size to be a nanocarrier.

Enhanced antifungal activity of fluconazole conjugated with Cu-Ag-ZnO nanocomposite.

Cu-Ag-ZnO nanocomposite (NC) has been successfully synthesized by mechanical alloying the Cu, Zn and Ag powder mixture under Ar atmosphere within 4 h of milling. The nanocomposite is then conjugated with the antifungal drug fluconazole by adding 5 wt% powdered drug to the NC and mechanical alloying the total powder mixture for one more hour. The Rietveld refinement of XRD data and FTIR spectrum analyses reveal the detailed structural and microstructural characterizations of the nanocomposite-drug conjugate (NC-DC).