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This paper describes the synthesis and chromatographic and morphologic characterization of two monolithic silica nano-columns (50 µm i.d.) prepared by sol-gel processes, using hydrophilic interaction (HILIC) mode separations to evaluate their performance. Two types of monoliths were prepared by varying the precursors (tetraethoxysilane or a tetraethoxysilane-methyltrimethoxysilane mixture) and ...

In this study, a chemical oxidation method was employed to fabricate coral-like Cu2O nano/microstructures on Cu foils as counter electrodes (CEs) for dye-sensitized solar cells (DSSCs). The Cu2O nano/microstructures were prepared at various sintering temperatures (400, 500, 600 and 700 °C) to investigate the influences of the sintering temperature on the DSSC characteristics. First, the Cu foil...

To evaluate the potential of the green agla Chlorella zofingiensis as a feedstock for biodiesel production, the effects of nitrogen and phosphate on lipid accumulation and growth of C. zofingiensis were studied. The maximum specific growth rate (μ(max)) reached 2.15 day⁻¹ when the concentration of NaNO₃ and K₂HPO₄·3H₂O was 1.0 g L⁻¹ and 0.01 g L⁻¹, respectively. The lipid contents of C. zofingi...

Optimizing nutrient management strategies is crucial for enhancing the growth, yield, and nutritional quality of fodder maize (Zea mays) while minimizing environmental impacts. This study investigated effects innovative nitrogen (N) zinc (Zn) approaches on production. Different combinations fertilizers, including conventional urea nano-urea, were applied in conjunction with targeted foliar spra...

The electronic and structural properties of pristine and carbon doped (C-doped) boron nitride nano-ribbons (BNNRs) have been studied employing density functional theory (DFT) calculations. Total energies, gap energies, dipole moments, and quadrupole coupling constants (qcc) have been calculated in the optimized structures of the investigated BNNRs. The results indicated that the stability and g...

the electronic and structural properties of pristine and carbon doped (c-doped) boron nitride nano-ribbons(bnnrs) have been studied employing density functional theory (dft) calculations. total energies, gapenergies, dipole moments, and quadrupole coupling constants (qcc) have been calculated in the optimizedstructures of the investigated bnnrs. the results indicated that the stability and gap ...

We present a fiber-coupled diamond-based single photon system. Single nanodiamonds containing nitrogen vacancy defect centers are deposited on a tapered fiber of 273 nanometer in diameter providing a record-high number of 689,000 single photons per second from a defect center in a single-mode fiber. The system can be cooled to cryogenic temperatures and coupled evanescently to other nanophotoni...

The effect of individual nanometals (Co, Fe, Cu, Ge) carboxylates (NMC) as components the suspension for seeds inoculation with rhizobia on nitrogen fixation rate and parameters CO2 H2O gas exchange in soybean plants grown under different water conditions was investigated. scheme trials included following variants: 1 - + strain B1-20; 2 (strain B1-20 nano-cobalt carboxylate); 3 В1-20 nano-ferru...