Publications by authors named "Venu Gopal Bairi"

Article Synopsis
  • * The study examined 15 commercial items, like dietary supplements and skin protectants, that claimed to contain nano or colloidal Ag, using analytical techniques such as ICPMS, DLS, and microscopy.
  • * Results indicated that Ag nanoparticles were present in 11 products, mostly spherical and under 50 nm in size, highlighting the need for multiple characterization methods tailored to specific product types and their ingredients.
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This investigation reports a rapid and simple screening technique for the quantification of titanium and zinc in commercial sunscreens using portable X-ray fluorescence spectroscopy (pXRF). A highly evolved technique, inductively coupled plasma-mass spectroscopy (ICP-MS) was chosen as a comparative technique to pXRF, and a good correlation (r > 0.995) with acceptable variations (≤25%) in results between both techniques was observed.

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A highly active tannin doped polyaniline-TiO₂ composite ammonia gas sensor was developed and the mechanism behind the gas sensing activity was reported for the first time. A tanninsulfonic acid doped polyaniline (TANIPANI)-titanium dioxide nanocomposite was synthesized by an in situ polymerization of aniline in the presence of tanninsulfonic acid and titanium dioxide nanoparticles. X-ray diffraction and thermogravimetric analysis were utilized to determine the incorporation of TiO₂ in TANIPANI matrix.

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