results the results of energy-dispersive x-ray demonstrated that the purified nps consisted of only se. in addition, transmission electron micrographs showed that 120- to 140-nm spherical se nps were the most common. an antifungal assay was performed with a standard clinical and laboratory standards institute broth microdilution method. minimum inhibitory concentration (mic) measurements of the...

This study presents an ecologically conscious methodology for synthesizing tea polypeptides-selenium nanoparticles (TP-SeNPs) exhibiting antioxidant and antibacterial properties, utilizing polypeptides (TP). Proteins were extracted from leaves using alkali extraction-acid precipitation method, response surface (RSM) was employed to optimize the preparation processes both TP TP-SeNPs. The extrac...

Electron microscopy was used to test whether or not (a) in statu nascendi synthesized, and in situ measured, nanoparticle size does not differ significantly from the size of nanoparticles after their purification; and (b) the generation of selenium is detrimental to the bacterial strains that produce them. Elemental nano-sized selenium produced by probiotic latic acid bacteria was used as a lac...

This work investigates the potential for harnessing the association of bacterial proteins to biogenic selenium nanoparticles (SeNPs) to control the size distribution and the morphology of the resultant SeNPs. We conducted a proteomic study and compared proteins associated with biogenic SeNPs produced by E. coli to chemically synthesized SeNPs as well as magnetite nanoparticles. We identified fo...

We present, for the first time, versatile solutions of concentrated selenium, within an array of amines, in a fast and low temperature manner without contaminants. These solutions allow the unprecedented opportunity to synthesize a variety of pure selenium and selenide nanoparticles as well as mixed chalcogen sulfoselenide compounds.

This study aimed at intracellular biosynthesis of selenium nanoparticles using Lactobacillus pentosusADEB (LP) and the greenly fabricated were characterized based on visual observation, spectroscopy, microscopy, energy dispersive X-rays, X-ray Diffraction, dynamic light scattering properties. The antibacterial activities (LP-SeNPs) against selected foodborne pathogens evaluated. A gradual chang...

The selenization of Cu-Zn-Sn-S nanocrystals is a promising route for the fabrication of low-cost thin film solar cells. However, the reaction pathway of this process is not completely understood. Here, the evolution of phase formation, grain size, and elemental distributions is investigated during the selenization of Cu-Zn-Sn-S nanoparticle precursor thin films by synchrotron-based in situ ener...

Abstract Broiler ascites syndrome (AS) is one of the main diseases threatening health broilers. It well documented that myocardial hypertrophy and failure key mechanisms broiler syndrome. Therefore, prevention cardiac would be goal to reduce incidence. Myocardial are closely related endoplasmic reticulum stress (ERS) in myocytes, signaling system (ATF6-DR5) important pathways apoptosis. Excessi...