Vapor Phosphorylation of Cellulose by Phosphorus Trichlo-Ride: Selective Phosphorylation of 6-Hydroxyl Function—The Synthesis of New Antimicrobial Cellulose 6-Phosphate(III)-Copper Complexes

Abstract

This research is focused on a synthesis of copper-cellulose phosphates antimicrobial complexes. Vapor-phase phosphorylations of cellulose were achieved by exposing microcrystalline cellulose to phosphorus trichloride (PCl3) vapors. The cellulose-O-dichlorophosphines (Cell-O-PCl2) formed were hydrolyzed to cellulose-O-hydrogenphosphate (P(III)) (Cell-O-P(O)(H)(OH)), which, in turn, were converted into corresponding copper(II) complexes (Cell-O-P(O)(H)(OH)∙Cu2+). The analysis of the complexes Cell-O-P(O)(H)(OH)∙Cu2+ covered: scanning electron microscopy (SEM), attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR), atomic absorption spectrometry with flame excitation (FAAS), and bioactivity tests against representative Gram-negative bacteria (Escherichia coli) and Gram-positive bacteria (Staphylococcus aureus). The antimicrobial tests of synthesized Cell-O-P(O)(H)(OH)∙Cu2+ revealed their potential applications as an antibacterial material.

Poly(lactic acid)/Zinc/Alginate Complex Material: Preparation and Antimicrobial Properties

“…Water drops of 0.25 µL were applied to each clean and dry sample. The apparent contact angle was calculated as the average of 10 measurements [ 132 ].…”

Preparation of Cotton–Zinc Composites by Magnetron Sputtering Metallization and Evaluation of their Antimicrobial Properties and Cytotoxicity

“…As part of our research program dedicated to biologically active functionalized phosphonates [106,107] and biofunctionalization of textile materials [108][109][110][111][112][113][114], we present the preparation and physicochemical and biological properties of the COT-Zn polymer hybrid. The aim of this work was to modify the surface of cotton fabric with zinc using the DC (direct current) magnetron sputtering method to produce a new antimicrobial, multifunctional composite material.…”

The Strength and Fire Properties of Paper Sheets Made of Phosphorylated Cellulose Fibers

“…Apart from the fire-proofing behavior of phosphorylated cellulose, known as a more significant characteristic of phosphorylated fibers, the ion-exchange role of this modified cellulose is also noticeable [10,[14][15][16][17][18][19]. Briefly, phosphorylated cellulose, as an ion exchanger, could be applied to remove heavy metals in effluent treatment [14,17,18], vitamin and protein chromatography, and for designing biomimetic substances [10,16,18].…”