Abstract
Polyethyleneimine (PEI) particles were synthesized by using micro-emulsion polymerization and converted to positively charged forms by modifying with various alkyl halides of variant chain lengths such as methyl-iodide, 1-bromoethane, 1-bromobutane, 1-bromohexane and 1-bromooctane. Furthermore, the ionic liquid colloids of PEI particles were exposed to a simple anion change procedure by treating with sodium dicyanamide (SDCA), sodium tetrafluoroborate (STFB) and ammonium hexafluorophosphate (AHFP) solutions at ambient temperature. It was demonstrated that the alky halide-modified PEI particles show antibacterial effect against different strains of bacteria such as Escherichia coli ATCC 8739 and Staphylococcus aureus ATCC 8739 and can even be used as drug delivery materials. Gallic acid (GA) absorption capacity of PEI particles increased from 200mg to 600mg per gram dry PEI particles by most modifications, and almost 80% of loaded GA was released in PBS in about 20h. Interestingly, the anion-changed PEI ionic colloids were shown to be very effective in the removal of Cr(VI) ions, whereas bare PEI particles showed better UO22+ removal capability from aqueous solutions for potential environmental applications.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
