Fabrication of a Functionalized Magnetic Bacterial Nanocellulose with Iron Oxide Nanoparticles

Arias, Sandra L.; Shetty, Akshath R.; Senpan, Angana; Echeverry‐Rendón, Mónica; Reece, Lisa M.; Allain, Jean Paul

doi:10.3791/52951

Cited by 34 publications

(28 citation statements)

References 17 publications

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“…Fe 3 O 4 nanoparticle impregnation to yield a magnetic bacterial nanocellulose or use in the preparation of ferromagnetic cobalt ferrite nanoparticles 58,59 ), optical, and mechanical properties due to their low apparent density and high surface area 60 . Extensive applications for BNC in the biomedical field have been reported 61 , BNC combines high physical strength, an extremely hydrophilic surface and an interpenetrating structure, which recommends this material for biomedical applications 62 , such as implants and scaffolds for tissue engineering, wound dressings, artificial skin 63 , and as drug delivery carriers 64 .…”

Section: Bacterial Nanocellulose (Bnc)mentioning

confidence: 99%

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

Thomas¹,

Raj²,

B³

et al. 2018

Chem. Rev.

1,178

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: Bacterial Nanocellulose (Bnc)mentioning

confidence: 99%

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

Thomas¹,

Raj²,

B³

et al. 2018

Chem. Rev.

1,178

752

View full text Add to dashboard Cite

show abstract

“…The matrix of BNC material can be loaded with various nanoparticles such as: silver, ferric complexes, cobalt ferrite nanoparticles, and other organic moieties . From the SEM image (Figure ), the high volumetric nano and meso‐scale porosity of the BNC samples can be observed.…”

Section: Resultsmentioning

confidence: 99%

“…The size distribution of colloidal nanoparticles was analyzed through dynamic light scattering and we found that the mean size of clusters of MNPs is ≈100 nm. The BNC scaffold is immersed into the ferrofluid under vigorous stirring (1500 rpm) to promote amalgamation of ferrous ions on the surface of BNC fibers and later NH 4 OH is added in order to produce the ferrous salts precipitation increasing their size . (see Figure S3, Supporting Information, and macroscale photographs in Figure S4, Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

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In situ Study Unravels Bio‐Nanomechanical Behavior in a Magnetic Bacterial Nano‐cellulose (MBNC) Hydrogel for Neuro‐Endovascular Reconstruction

Pavón

Allain

Verma

et al. 2018

Macromolecular Bioscience

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Surgical clipping and endovascular coiling are well recognized as conventional treatments of Penetrating Brain Injury aneurysms. These clinical approaches show partial success, but often result in thrombus formation and the rupture of aneurysm near arterial walls. The authors address these challenging brain traumas with a unique combination of a highly biocompatible biopolymer hydrogel rendered magnetic in a flexible and resilient membrane coating integrated to a scaffold stent platform at the aneurysm neck orifice, which enhances the revascularization modality. This work focuses on the in situ diagnosis of nano‐mechanical behavior of bacterial nanocellulose (BNC) membranes in an aqueous environment used as tissue reconstruction substrates for cerebral aneurysmal neck defects. Nano‐mechanical evaluation, performed using instrumented nano‐indentation, shows with very low normal loads between 0.01 to 0.5 mN, in the presence of deionized water. Mechanical testing and characterization reveals that the nano‐scale response of BNC behaves similar to blood vessel walls with a very low Young´s modulus, E (0.0025 to 0.04 GPa), and an evident creep effect (26.01 ± 3.85 nm s−1). These results confirm a novel multi‐functional membrane using BNC and rendered magnetic with local adhesion of iron‐oxide magnetic nanoparticles.

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“…Cerebral aneurysms are the most critical events in cerebral trauma and surgical conventional treatments have low success rate [ 95 ]. Pavon et al developed an alternative technique for neuro-endovascular reconstruction [ 95 , 96 , 97 ]. They used a co-precipitation-based method to functionalize bacterial cellulose hydrogel with Fe 3 O 4 NPs.…”

Section: Nanocellulose Hybrids With Magnetic Nanoparticlesmentioning

confidence: 99%

Nanocellulose Hybrids with Metal Oxides Nanoparticles for Biomedical Applications

Oprea

Panaitescu

2020

Molecules

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Cellulose is one of the most affordable, sustainable and renewable resources, and has attracted much attention especially in the form of nanocellulose. Bacterial cellulose, cellulose nanocrystals or nanofibers may serve as a polymer support to enhance the effectiveness of metal nanoparticles. The resultant hybrids are valuable materials for biomedical applications due to the novel optical, electronic, magnetic and antibacterial properties. In the present review, the preparation methods, properties and application of nanocellulose hybrids with different metal oxides nanoparticles such as zinc oxide, titanium dioxide, copper oxide, magnesium oxide or magnetite are thoroughly discussed. Nanocellulose-metal oxides antibacterial formulations are preferred to antibiotics due to the lack of microbial resistance, which is the main cause for the antibiotics failure to cure infections. Metal oxide nanoparticles may be separately synthesized and added to nanocellulose (ex situ processes) or they can be synthesized using nanocellulose as a template (in situ processes). In the latter case, the precursor is trapped inside the nanocellulose network and then reduced to the metal oxide. The influence of the synthesis methods and conditions on the thermal and mechanical properties, along with the bactericidal and cytotoxicity responses of nanocellulose-metal oxides hybrids were mainly analyzed in this review. The current status of research in the field and future perspectives were also signaled.

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Fabrication of a Functionalized Magnetic Bacterial Nanocellulose with Iron Oxide Nanoparticles

Cited by 34 publications

References 17 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

In situ Study Unravels Bio‐Nanomechanical Behavior in a Magnetic Bacterial Nano‐cellulose (MBNC) Hydrogel for Neuro‐Endovascular Reconstruction

Nanocellulose Hybrids with Metal Oxides Nanoparticles for Biomedical Applications

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