Preparation of Antibacterial Cellulose Paper Using Layer-by-Layer Assembly for Cooked Beef Preservation at Ambient Temperature

Li, Hui; Cui, Rongqi; Peng, Lincai; Cai, Shengbao; Li, Pan; Lan, Tianqing

doi:10.3390/polym10010015

Cited by 22 publications

(11 citation statements)

References 59 publications

(61 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The average diameters of the cellulose fibers increased and more gelatinous substances were presented, hence causing more bridging and bonding between fibers, resulting in a more compact surface structure. This result is consistent with a previous study (Wu and Farnood, 2014;Li et al, 2018).…”

Section: Sem and Atr Characterizationsupporting

confidence: 94%

Effect of graphene oxide nanoparticle coatings on the strength of packaging paper and its barrier and antibacterial properties

et al. 2019

View full text Add to dashboard Cite

The aim of this study was to assess the performance of graphene oxide nanoparticles in paper coating formulations in order to improve the antibacterial, physical and mechanical properties of paperboard. The paper was coated with graphene oxide nanoparticles at concentrations of 100 and 200 ppm together with 5% cationic starch (dry weight) as a retention aid and for better coverage and more homogeneous positioning of nanographene oxide particles on the surface of the paper. The paper surface coated with nanographene oxide particles and starch was characterised using ATR-FTIR and SEM. The antibacterial assay was performed according to the Turbidity Method. For the antibacterial tests of paper sheets, Escherichia coli and Staphylococcus aureus were used as Gram-negative and Gram-positive bacteria respectively. The results showed that UV adsorption was reduced, with the largest reduction obtained when using nanographene oxide particles at 200 ppm. Turbidity in the samples including S. aureus was also lower. The growth rates of S. aureus bacterium in the control and the paper specimens coated with 200 ppm nanographene oxide were 89% and 24%, respectively. The density and thickness of the paper sheets increased in the paper coated with cationic starch and nanoparticles in comparison with uncoated paper. The nanoparticles had no significant effect on the thickness of coated papers. The addition of nanographene oxide particles improved the resistance to air and barrier properties of paper sheets. The burst and tear indexes increased for the paper coated with starch and nanographene oxide particles.

show abstract

Section: Sem and Atr Characterizationsupporting

confidence: 94%

Effect of graphene oxide nanoparticle coatings on the strength of packaging paper and its barrier and antibacterial properties

et al. 2019

View full text Add to dashboard Cite

show abstract

“…For all the SAPs, the ability to inhibit S. aureus was better than the ability to inhibit E. coli . This is because the lipopolysaccharide layer of E. coli is thicker than S. aureus , which can protect the bacterial cell wall from being destroyed by PQ7 [42].…”

Section: Resultsmentioning

confidence: 99%

A One Pot Method for Preparing an Antibacterial Superabsorbent Hydrogel with a Semi-IPN Structure Based on Tara Gum and Polyquaternium-7

Shen

Zhan³

et al. 2018

Polymers

View full text Add to dashboard Cite

An antibacterial superabsorbent polymer was prepared by graft polymerization of acrylic acid onto tara gum polysaccharide, by adding N,N-dimethyl-N-2-propenyl-2-propen-1-aminium chloride and a polymer with 2-propenamide (polyquaternium-7, PQ7) as an antibacterial agent. The effects of the amount of PQ7 in the hydrogel on its swelling ratio were investigated and maximum swelling ratios of 712 g/g and 68 g/g, in distilled water and 0.9 wt % NaCl solution were attained with 0.5 g PQ7 per gram of tara gum. The superabsorbent hydrogel was characterized by using Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy and thermal gravimetric analysis. The results showed that poly (acrylic acid) was successfully grafted onto tara gum and a three-dimensional network structure formed with PQ7 chains penetrated in the networks. The antibacterial properties of these superabsorbent hydrogels against Staphylococcus aureus and Escherichia coli improved with increasing PQ7 content. This study demonstrates a method of preparing novel functional superabsorbent hydrogels.

show abstract

“…Other research has also reported that as the number of the layers increased, antibacterial properties did not necessarily enhance. [48,49] F I G U R E 7 The absorbance value in 24…”

Section: The Antibacterial Activity Of the Modified Pu Filmsmentioning

confidence: 99%

Layer‐by‐layer self‐assembly of collagen and chitosan biomolecules on polyurethane films

Bahrami

Khorasani

Mahdavi

et al. 2020

J of Applied Polymer Sci

View full text Add to dashboard Cite

Polyurethane (PU) films used in wound dressing applications often have appropriate properties. Still, surface modification is necessary to increase the biocompatibility. In this research, the surface of the PU films was modified with collagen and chitosan biomolecules through layer by layer (LbL) self‐assembly process. The PU films were synthesized from castor oil and hexamethylene diisocyanate. Then, they were treated with low‐pressure nitrogen plasma to graft with poly(acrylic acid). Before performing the LbL process, the surfaces of the PU films were modified using three different reagents, including (A) NaOH solution, (B) EDC/NHS solution, or (C) hexamethylene diamine. Then, the collagen and chitosan deposited in three and five layers on the surface. The images of FESEM, confocal microscopy, and AFM showed that the best performance of the LbL deposition process was after the surface modification with hexamethylenediamine (HMDA). The MTT assay showed that the presence of these biomolecules had boosted the proliferation of fibroblast cells. Increasing the number of the deposited layer from three to five, decreased the cell viability and antibacterial activity of the films. The obtained results propose the modification with HMDA and the deposition of three layers of collagen and chitosan on the PU films to improve its biocompatibility.

show abstract

Preparation of Antibacterial Cellulose Paper Using Layer-by-Layer Assembly for Cooked Beef Preservation at Ambient Temperature

Cited by 22 publications

References 59 publications

Effect of graphene oxide nanoparticle coatings on the strength of packaging paper and its barrier and antibacterial properties

Effect of graphene oxide nanoparticle coatings on the strength of packaging paper and its barrier and antibacterial properties

A One Pot Method for Preparing an Antibacterial Superabsorbent Hydrogel with a Semi-IPN Structure Based on Tara Gum and Polyquaternium-7

Layer‐by‐layer self‐assembly of collagen and chitosan biomolecules on polyurethane films

Contact Info

Product

Resources

About