Temporal variability of PM and its possible sources at the tropical megacity, Bengaluru, India.

The mass concentrations of PM were measured at a tropical megacity, Bengaluru, India, for the year 2015. The mean mass concentrations showed large fluctuations on day to day basis with values less than the Indian National Ambient Air Quality Standard (INAAQS) of 60 µg m. The observed annual mean mass concentration of 28 ± 11 µg m is also within the INAAQS value of 40 µg m.

Variability of ozone and oxides of nitrogen in the tropical city, Bengaluru, India.

Bengaluru, also considered India's Silicon Valley, has seen steady growth in population over the years. Bengaluru's rapid development has resulted in dwindling reservoirs, increased traffic congestion, high levels of air pollution, and, to some measure, a rise in summer temperatures. As a result of these changes in urban form over the last decade, anthropogenic heat fluxes for ozone production have increased.

Histidine and arginine conjugated starch-PEI and its corresponding gold nanoparticles for gene delivery.

The high surface energy of gold nanoparticles (GNPs) along with its unique physical and chemical properties delivers it as an effective nonviral gene delivery platform for anticancer treatments. GNPs were synthesized by using starch-PEI in which PEI act as reducing agent and starch as a stabilizer. Cytocompatibility studies carried out in C6 cells revealed that gold modification significantly improved the percentage cell viability even at higher polymer concentration.