Phyto-mediated synthesis of nanoparticles and their applications on hydrogen generation on NaBH4, biological activities and photodegradation on azo dyes: Development of machine learning model

Food Chem Toxicol. 2022 May:163:112972. doi: 10.1016/j.fct.2022.112972. Epub 2022 Apr 6.

Abstract

This work reports the synthesis of the silver-platinum bimetallic nanoparticles (N@Pt-Ag BNPs) reduced by an ethanolic extract of black seed (Nigella sativa, N) using the green synthesis method, these nanoparticles show a great antibacterial, anticancer, and catalytic activity. The characterization of physicochemical properties of Ag-Pt BNP was carried out using UV-visible spectroscopy (Uv-vis), Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and Transmission electron microscope (TEM) analysis. The structural morphology shows that the N@Pt-Ag BNPs are spherical particles with a diameter of 5.6 nm. The cytotoxic effects of N@Pt-Ag BNPs were examined by MTT test in human breast cancer, human colon cancer, human pancreatic cancer, L929-Murine fibroblast cells. N@Pt-Ag BNPs have been observed to be much more effective in breast cancer cell lines. The cytotoxic effect of N@Pt-Ag BNPs against healthy L929-murine fibroblast cell lines was not observed. Also, high antibacterial activity on each of the bacteria Escherichia coli (E. coli), Bacillus subtilis (B. subtilis), Methicillin-resistant Staphylococcus aureus (MRSA), Staphylococcus aureus (S. aureus), where we note that most strains of E. coli and S. aureus were damaged with a 73% percentage, 67% bacterial inhibition respectively. The results of the catalytic activities of N@Pt-Ag BNPs were obtained by performing the hydrolysis experiments of sodium borohydride (NaBH4). According to the results obtained, TOF, enthalpy, entropy, and activation energy, values were found to be 2497.14 h-1, 13.52 kJ/mol, -137.47 J/mol.K, 16.02 kJ/mol, respectively. N@Pt-Ag BNPs were found to be highly effective catalysts for hydrogen production which this was also confirmed by the machine learning model. The photocatalytic activity of N@Pt-Ag BNPs was tested against methylene blue (MB) dye and the highest activity was found as 80%.

Keywords: Antibacterial activity; Anticancer activity; Hydrogen production; Machine learning; Photocatalytic activity; Silver-Platinum bimetallic nanoparticles.

MeSH terms

  • Animals
  • Anti-Bacterial Agents / chemistry
  • Anti-Bacterial Agents / pharmacology
  • Azo Compounds / pharmacology
  • Escherichia coli
  • Humans
  • Hydrogen / pharmacology
  • Machine Learning
  • Metal Nanoparticles* / chemistry
  • Metal Nanoparticles* / toxicity
  • Methicillin-Resistant Staphylococcus aureus*
  • Mice
  • Photolysis
  • Silver / chemistry
  • Silver / pharmacology
  • Spectroscopy, Fourier Transform Infrared
  • Staphylococcal Infections*
  • Staphylococcus aureus
  • X-Ray Diffraction

Substances

  • Anti-Bacterial Agents
  • Azo Compounds
  • Silver
  • Hydrogen