Bacterial adhesion to polyvinylamine-modified nanocellulose films

Henschen, Jonatan; Larsson, Per Tomas; Illergård, Josefin; Ek, Monica; Wågberg, Lars

doi:10.1016/j.colsurfb.2016.12.018

Cited by 19 publications

(9 citation statements)

References 45 publications

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“…372 Bacterial adhesion to CNF films and TEMPO-oxidized CNF films is low. 373 Bacterial adhesion was largely increased by treating TEMPO-oxidized CNF films with polyelectrolytes, showing the importance of surface chemistry in either augmenting or diminishing material interactions with bacteria. The excellent air-barrier and antimicrobial activities of nanocellulose coatings have been reconfirmed by El-Samahy et al 374…”

Section: Barrier Properties and Packagingmentioning

confidence: 99%

Nanocellulose, a Versatile Green Platform: From Biosources to Materials and Their Applications

Thomas¹,

Raj²,

B³

et al. 2018

Chem. Rev.

1,268

752

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With increasing environmental and ecological concerns due to the use of petroleum based chemicals and products, the synthesis of fine chemicals and functional materials from natural resources is of great public value. Nanocellulose may prove to be one of the most promising green materials of modern times due to its intrinsic properties, renewability and abundance. In this review, we present nanocellulose-based materials from sourcing, synthesis, and surface modification of nanocellulose, to materials formation and applications. Nanocellulose can be sourced from biomass, plants or bacteria, relying of fairly simple, scalable and efficient isolation techniques. Mechanical, chemical, enzymatic treatments, or a combination of these, can be used to extract nanocellulose from natural sources. The properties of nanocellulose are dependent on the source, the isolation technique and potential subsequent surface transformations. Nanocellulose surface modification techniques are typically used to introduce either charged or hydrophobic moieties, and include: amidation, esterification, etherification, silylation, polymerization, urethanization, sulfonationand phosphorylation. Nanocellulose has excellent strength, Young's modulus, biocompatibility, and tunable self-assembly, thixotropic and photonic properties, which are essential for the applications of this material. Nanocellulose participates in the fabrication of a large range of nanomaterials and nanocomposites, including those based on polymers, metals, metal oxides and carbon. In particular, nanocellulose complements organic-based materials, where it imparts its mechanical properties to the composite. Nanocellulose is a promising material whenever material strength, flexibility and/or specific nanostructuring are required. Applications include functional paper, optoelectronics and antibacterial coatings, packaging, mechanically reinforced polymer composites, tissue scaffolds, drug delivery, biosensors, energy storage, catalysis, environmental remediation and 3 electrochemical controlled separation. Phosphorylated nanocellulose is a particularly interesting material, spanning a surprising set of applications in various dimensions including bone scaffolds, adsorbents, flame retardants and as a support for the heterogenization of homogeneous catalysts.

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Section: Barrier Properties and Packagingmentioning

confidence: 99%

Nanocellulose, a Versatile Green Platform: From Biosources to Materials and Their Applications

Thomas¹,

Raj²,

B³

et al. 2018

Chem. Rev.

1,268

752

View full text Add to dashboard Cite

show abstract

“…This type of bacterial adsorption in islands has been previously seen with the same modification on films made from CNFs; Henschen et al showed a higher concentration of adsorbed bacteria in the ridges on a structured CNF film modified with LbL and it was suggested to be due to the difference in the structure and roughness between the ridges and the flat parts of the CNF film. 54 The fluorescence micrographs show that most bacteria were adsorbed in the first sheet of the stacked filter when 3 L modification was applied to the cellulose filters. Fewer bacteria were seen further down in the modified filter stack.…”

Section: Fluorescence Microscopy Imagesmentioning

confidence: 98%

Cellulose-based water purification using paper filters modified with polyelectrolyte multilayers to remove bacteria from water through electrostatic interactions

Ottenhall

Henschen

Illergård

et al. 2018

Environ. Sci.: Water Res. Technol.

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“…Henschen et al. [ 59 ] studied the antibacterial effect of films of 2,2,6,6‐tetramethylpiperidine‐1‐oxyl (TEMPO)‐oxidized CNFs having different amounts of surface carboxyls, degree of chemical crosslinking, and surface structuring after being LbL‐treated with up to 5 bilayers of PAA/PVAm, with PVAm as the capping layer. The results showed that LbL‐multilayers were formed on all investigated NC substrates with the largest PVAm and bacteria adsorption occurring on the structured film with lowest charge.…”

Section: Functional Materials Based On Lblmentioning

confidence: 99%

“…The results showed that LbL‐multilayers were formed on all investigated NC substrates with the largest PVAm and bacteria adsorption occurring on the structured film with lowest charge. [ 59 ] This phenomenon is argued to be due to the flatter conformation adopted by the polyelectrolytes when adsorbed onto the highly charged surface, [ 60 ] which prevented efficient recharging of the surface and therefore bacteria adsorption. Conversely, the antibacterial effects of (PVAm/CNF)‐multilayers on cellulose model surfaces were found to be correlated to a higher surface charge of the cellulose model surface and hence an increased PVAm adsorbtion.…”

Section: Functional Materials Based On Lblmentioning

confidence: 99%

The Use of Layer‐by‐Layer Self‐Assembly and Nanocellulose to Prepare Advanced Functional Materials

2020

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The current knowledge about the formation of layer‐by‐layer (LbL) self‐assemblies using combinations of nanocelluloses (NCs) and polyelectrolytes is reviewed. Herein, the fundamentals behind the LbL formation, with a major focus on NCs, are considered. Following this, a special description of the limiting factors for the formation of LbLs of only NCs, both anionic and cationic, and the combination of NCs and polyelectrolytes/nanoparticles is provided. The ability of the NCs and polyelectrolytes to form dense films with excellent mechanical properties and with tailored optical properties is then reviewed. How low‐density, wet stable networks of cellulose nanofibrils can be used as substrates for the preparation of antibacterial, electrically interactive, and fire‐retardant materials by forming well‐defined LbLs inside these networks is then considered. A short outlook of the possible uses of LbLs containing NCs is given to conclude.

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Bacterial adhesion to polyvinylamine-modified nanocellulose films

Cited by 19 publications

References 45 publications

Nanocellulose, a Versatile Green Platform: From Biosources to Materials and Their Applications

Nanocellulose, a Versatile Green Platform: From Biosources to Materials and Their Applications

Cellulose-based water purification using paper filters modified with polyelectrolyte multilayers to remove bacteria from water through electrostatic interactions

The Use of Layer‐by‐Layer Self‐Assembly and Nanocellulose to Prepare Advanced Functional Materials

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