Coating PHGH-Modified Starch on Papers to Induce Antimicrobial Properties

Abstract

In this work, paper was rendered antimicrobial via applying antimicrobialmodified starch as a coating material onto the paper's surface. The antimicrobial starch was prepared by covalently bonding guanidine polymers using a coupling reaction. Two different coating layers were applied onto the paper's surface. The first coating layer contained clay mixed with a latex binder (clay 100 g/latex 20 g). The antimicrobial starches, which possessed different grafting ratios of the antimicrobial agent (30 wt.% and 50 wt.%), were applied as the second coating layer on the paper. The results showed that the coating thickness was approximately constant at 4 μm. In the presence of 0.5 to 1.0 wt.% antimicrobial starch on cellulose fibers, the growth inhibition of bacteria was almost 100%. Additionally, the resulting coated paper exhibited high antimicrobial activities against E. coli. Furthermore, the results showed that the coated papers prevented fungal growth.

Development of poly(vinyl alcohol)/starch/ethyl lauroyl arginate blend films with enhanced antimicrobial and physical properties for active packaging

“…As shown in Table 5, the control film did not exhibit inhibitory effects against the tested bacteria. No inhibition zone appeared in the TSA plate of the control film overgrown with E. coli and S. aureus, indicating that starch and PVA are not able to inhibit the growth of bacteria, as has been reported previously [52,53]. All active films containing LAE show antimicrobial effects.…”

Carbon nanotubes/polyaniline nanocomposite coatings: Preparation, rheological behavior, and their application in paper surface treatment

“…Surface application approach has been well‐established for converting conventional cellulosic paper into converted and specialty paper products with high commercial value . The role of surface application of MWCNTs/PANI nanocomposite coatings in improving the mechanical properties of cellulosic paper was investigated.…”

Interactions of Biocidal Polyhexamethylene Guanidine Hydrochloride and Its Analogs with POPC Model Membranes

“…Cumulative reports suggested that Polymer C 6 (PHGH) was probably a novel disinfectant tool to fight meticillin-resistant Staphylococcus aureus , which is one of six high-priority dangerous antibiotic-resistant ESKAPE pathogens [ 19 , 20 , 21 ]. In addition, the obvious advantage of Polymer C 6 is that it could been covalently bound to polyurethanes [ 40 ] or bacterial cellulose [ 41 ] to prepare wound dressing materials with non-leaching permanent sterile surface, and bond to starch to prepare antimicrobial paper [ 42 , 43 ]. Therefore, the characteristic of Polymer C 6 , which could induce a slight hemolysis rate with 10% as the maximum value, should be considered in its industry application.…”