Synthesis and characterization of iron-doped carbon nanoparticles encapsulated within functionally modified hyperbranched polyglycerol and study of their chromium (VI) ion sensing and antimicrobial applications

An optical fluorescence quenching sensor based on functionally modified iron-doped carbon nanoparticles was designed for the selective and sensitive Cr(VI) ion detection. Multifunctional iron-doped carbon nanoparticles were enclosed in the scaffolds of a promising stable nanocarrier system called hyperbranched polyglycerol (HPG), which has been fluorescently modified with 1-pyrene butyric acid using the Steglich esterification procedure. The therapeutic and diagnostic capabilities were boosted when these nanoparticles were enclosed in the fluorescently modified dendritic structure, HPG. Iron-doped carbon nanoparticles coupled with fluorescently modified hyperbranched polyglycerol can be used as a sensor for metal ions and can then be used to successfully remove them from a sample. Moreover, the synthesised nanoparticles demonstrated promising antimicrobial efficacy against bacteria and fungi. These results are also discussed in detail.

Automated summary

An optical fluorescence quenching sensor was developed using functionally modified iron-doped carbon nanoparticles for selective and sensitive Cr(VI) ion detection. These nanoparticles were enclosed in a fluorescently modified dendritic structure called hyperbranched polyglycerol (HPG). The sensor showed potential for metal ion detection and removal from samples, as well as promising antimicrobial efficacy against bacteria and fungi. Detailed results and discussions are provided.