Photocatalytic graphitic carbon nitride-chitosan composites for pathogenic biofilm control under visible light irradiation

Shen, Hongchen; Durkin, David P.; Aiello, Ashlee; Diba, Tara; Lafleur, John; Zara, Jason M.; Shen, Yun; Shuai, Danmeng

doi:10.1016/j.jhazmat.2020.124890

Cited by 29 publications

(15 citation statements)

References 43 publications

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“…These results are consistent with data from our previous study in that, during the biofilm development, bacteria continuously deposited onto the surface of both the cotton control and the Ag NPs laden cotton mat from the culture media due to the influence of gravity. [ 36 ] As such, cotton mat that was welded with L_10Ag powder was able to inactivate deposited bacteria, and dead bacteria were likely removed from the surface by the continuous shear forces generated by mixing. Therefore, no biofilms could develop on the surface of cotton mats welded with L‐10Ag powders.…”

Section: Resultsmentioning

confidence: 99%

“…To investigate the Ag NPs linen powders’ antimicrobial mechanism, planktonic E. coli (after being co‐cultured with the powder) were stained by nucleic acid dyes, that is, SYTO 9 and propidium iodide. [ 36 ] Specifically, unmodified linen powder (L), L_1Ag, L_5Ag, or L_10 Ag were dissolved into the aforementioned bacterial PBS suspension (OD 600 = 0.100) and the concentration of the materials was maintained at 1 mg mL −1 . After 3 h of gentle mixing on the tube rotator (60 rpm), the bacteria‐material mixture was collected via centrifugation (3000 rpm) and the supernatant was disposed.…”

Section: Methodsmentioning

confidence: 99%

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Antimicrobial Biocomposites Fiber‐Welded with Lignocellulose Containing Silver Nanoparticles

Shen

Gulbrandson

Park

et al. 2022

Macro Materials & Eng

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Biopolymer materials that use silver to imbue antimicrobial properties are finding broad application in areas such as packaging, textiles, and building materials. Conventional methods to incorporate silver can damage the supporting biopolymer matrix and/or result in large‐sized silver nanoparticles (Ag NPs) with poor antimicrobial efficacy. To mitigate these concerns, in this study, uniformly distributed, small (≈5–10 nm) Ag NPs are grown into a well‐preserved lignocellulose powder matrix by using a gas‐phase reducing agent at low temperature. The Ag NP‐ lignocellulose powders are fully characterized and their antimicrobial performance is investigated by inactivating planktonic bacteria and inhibiting biofilms. The most potent antimicrobial product, L_10Ag, achieves more than 4‐log reduction in planktonic bacterial viability within 3 h and a biofilm inhibition rate of 97.9%. Furthermore, the Ag NP impregnated powders are post‐processed through natural fiber welding (NFW), an emergent, innovative, ionic liquid (IL)‐based method that can be used to engineer biopolymer materials into new functional biocomposites. NFW transforms the powders into higher‐order structures, imparting anti‐microbial capacity without degrading the material properties of the biopolymer support.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Antimicrobial Biocomposites Fiber‐Welded with Lignocellulose Containing Silver Nanoparticles

Shen

Gulbrandson

Park

et al. 2022

Macro Materials & Eng

Self Cite

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“…Initial reports illustrated the potential of CN to produce 1 O 2 (D g ), but required extended irradiation to achieve the desired effects. 11,12 Subsequent studies, conducted by both our group and others, have illustrated that CN-mediated ROS formation reduces microbial biolm formation, but complete inhibition was generally not observed. 13,14 It is clear that efficient photochemical formation of ROS is critical for developing CN-based systems that effectively combat microbial biolms.…”

Section: A Introductionmentioning

confidence: 95%

1,4,5,8-Naphthalene tetracarboxylate dianhydride/g-C₃N₄ van der Waals heterojunctions exhibit enhanced photochemical H₂O₂ production and antimicrobial activity

et al. 2021

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“…Chitosan is a polymer matrix to hold the photocatalysts (Shen et al, 2021). g-C 3 N 4 (GCN) in chitosan matrix can develop selfcleaning surfaces.…”

Section: Chitosan With Metal-free Semiconductor Photocatalystsmentioning

confidence: 99%

Insight of the effect of chitosan modification on the photocatalytic properties of metal-based and metal-free photocatalysts

Kumar

Sudhaik

Raizada

et al. 2022

Biomat Polymers Horizon

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Chitosan is a polymeric material having properties such as adsorption and hydrophilicity. Chitosan itself is almost photocatalytically inactive, but it can couple with other photocatalysts to improve their photocatalytic activity. Chitosan significantly enhances photocatalysts' adsorption and lowers the charge carrier recombination, which ultimately aids in the enhanced photocatalytic activity. In this review, we have discussed chitosan's basic structural, electronic, and chemical properties. We have also explored the photocatalytic properties of chitosan and chitosan-based materials. Since metal-based and metal-free semiconductors are the two major classes of semiconductor photocatalysts, so we have described how chitosan can be used to enhance the limitations of metal-based and metal-free semiconductor photocatalysts. This review will help to develop a better understanding of chitosan and chitosan-based materials for photocatalysis. We have also explored the future aspects of chitosan-based photocatalytic materials to improve the research in the future.

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Photocatalytic graphitic carbon nitride-chitosan composites for pathogenic biofilm control under visible light irradiation

Cited by 29 publications

References 43 publications

Antimicrobial Biocomposites Fiber‐Welded with Lignocellulose Containing Silver Nanoparticles

Antimicrobial Biocomposites Fiber‐Welded with Lignocellulose Containing Silver Nanoparticles

1,4,5,8-Naphthalene tetracarboxylate dianhydride/g-C₃N₄ van der Waals heterojunctions exhibit enhanced photochemical H₂O₂ production and antimicrobial activity

Insight of the effect of chitosan modification on the photocatalytic properties of metal-based and metal-free photocatalysts

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Photocatalytic graphitic carbon nitride-chitosan composites for pathogenic biofilm control under visible light irradiation

Cited by 29 publications

References 43 publications

Antimicrobial Biocomposites Fiber‐Welded with Lignocellulose Containing Silver Nanoparticles

Antimicrobial Biocomposites Fiber‐Welded with Lignocellulose Containing Silver Nanoparticles

1,4,5,8-Naphthalene tetracarboxylate dianhydride/g-C3N4 van der Waals heterojunctions exhibit enhanced photochemical H2O2 production and antimicrobial activity

Insight of the effect of chitosan modification on the photocatalytic properties of metal-based and metal-free photocatalysts

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Product

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1,4,5,8-Naphthalene tetracarboxylate dianhydride/g-C₃N₄ van der Waals heterojunctions exhibit enhanced photochemical H₂O₂ production and antimicrobial activity