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Gum kondagogu stabilized selenium nanoparticles (Se NPs) show enhanced antioxidant and antibacterial properties. These plant-gum-derived Se NPs offer a potent, stable alternative to ionic selenium for nutritional supplements.

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Area of Science:

  • Nanotechnology
  • Materials Science
  • Biochemistry

Background:

  • Plant gums are renewable, non-toxic biopolymers suitable for nanoparticle synthesis.
  • Selenium nanoparticles (Se NPs) are explored for their potential biological applications.
  • Stabilization of nanoparticles is crucial for their efficacy and stability.

Purpose of the Study:

  • To synthesize and characterize selenium nanoparticles (Se NPs) using gum kondagogu as a stabilizer.
  • To evaluate the antioxidant and antibacterial activities of the synthesized Se NPs.
  • To compare the efficacy of gum-stabilized Se NPs with ionic selenium.

Main Methods:

  • Selenium nanoparticles synthesized using sodium borohydride and gum kondagogu.
  • Characterization via ultraviolet-visible spectroscopy and dynamic light scattering.
  • Antioxidant activity assessed using DPPH and ABTS assays; antibacterial activity via well diffusion assay.

Main Results:

  • Orange-red color indicated NP formation with a surface plasmon resonance peak at 250 nm.
  • Synthesized NPs were amorphous, spherical, polydisperse, with a mean size of 105.6 nm and high stability (zeta potential -39.9 mV).
  • Gum-capped Se NPs demonstrated superior antioxidant activity (73.2% DPPH, 92.2% ABTS) and inhibited Gram-positive bacteria (Bacillus subtilis, Micrococcus luteus).

Conclusions:

  • Gum kondagogu is an effective stabilizer for synthesizing stable Se NPs.
  • Se NPs exhibit significant antioxidant and selective antibacterial properties.
  • Tree gum-stabilized Se NPs present a promising, low-dose alternative to ionic selenium for nutritional supplements.