Xanthan gum-capped Chromia Nanoparticles (XG-CrNPs): A promising nanoprobe for the detection of heavy metal ions.

The present study reports on the selective and sensitive detection of metals using xanthan gum-capped chromia nanoparticles (XG-CrNPs). The nanoparticles were synthesized by the chemical reduction method using sodium borohydride and xanthan gum as the reducing and capping agents, respectively. The synthesis of XG-CrNPs was confirmed by the appearance of the two absorption peaks at 272 nm and 371 nm in the UV-visible region.

A comparative study on perception and use of generic drugs between public and private health practitioners.

Context: The perception of generic drugs may vary significantly between government and private doctors because physicians in the private sector have more prescribing choices and flexibility. Hence, this study was undertaken to analyse the knowledge, attitude and perception (KAP) of government and private physicians on generic drugs.

Materials And Methods: This was a questionnaire-based cross-sectional study conducted among physicians working in public and private health sectors.

Efficient sensing of saccharin through interference synthesis of gum ghatti capped silver nanoparticles.

The presence of saccharin (SH) could be efficiently sensed (in the concentration range of 5 × 10 M to 5 × 10 M) through the interference synthesis of gum ghatti (GG) capped silver nanoparticles (GGAgNps). The synthesis used sodium borohydride and gum ghatti (GG) as the reducing and capping agents respectively. The strong hydrogen-bonding recognition between GG and SH was responsible for the interference.

Detection of Multiple Enzymes in Fermentation Broth Using Single PAGE Analysis.

Activity staining or zymography is a technique to detect enzymes based on their function/activity toward a specific substrate. Multiple enzyme-producing microbes secrete enzymes along with other proteins at varying time points during fermentation. The technique of zymography can be used to detect functionality of enzymes in complex protein/other enzyme mixtures.

Activity of hydrolytic enzymes in various regions of normal human brain tissue.

The activity of six hydrolytic enzymes-carboxyl esterase, acid phosphatase, alkaline phosphatase, β-galactosidase, β-glucosidase and β-hexosaminidase, were studied in different regions of the normal human brain tissue obtained at autopsy. Protein estimation and activities of the hydrolytic enzymes with respective substrates were assayed by spectrophotometric and spectroflourometric methods. Amongst the eight regions of the brain-frontal, parietal, occipital, temporal, thalamus, cerebellum and hippocampus, the pineal gland showed highest activity for all hydrolytic enzymes studied except for carboxyl esterase.