Biocellulose-based flexible magnetic paper

Barud, Hernane S.; Tercjak, Agnieszka; Gutierrez, Junkal; Viali, Wesley Renato; Nunes, Eloiza S; Ribeiro, Sidney J. L.; Jafellici, M.; Nalin, Marcelo; Marques, Rodrigo Fernando Costa

doi:10.1063/1.4917261

Cited by 27 publications

(17 citation statements)

References 17 publications

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“…This protocol focuses on the design of a bacterial nanocellulose-magnetic nanoparticle pellicle, which we have named magnetic bacterial nanocellulose (MBNC), which is intended to use as a substitute for missing, damaged or injured small-diameter blood vessels. H. S. Barud and coworkers have recently published a similar work to produce a BNC-based flexible magnetic paper by mixing BNC pellicles in a stable aqueous dispersion of PEG and superparamagnetic iron oxide nanoparticles 3 . Here, we describe the production of bacterial cellulose and its impregnation in situ with magnetic nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of a Functionalized Magnetic Bacterial Nanocellulose with Iron Oxide Nanoparticles

Arias

Shetty

Senpan

et al. 2016

JoVE

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In this study, bacterial nanocellulose (BNC) produced by the bacteria Gluconacetobacter xylinus is synthesized and impregnated in situ with iron oxide nanoparticles (IONP) (Fe3O4) to yield a magnetic bacterial nanocellulose (MBNC). The synthesis of MBNC is a precise and specifically designed multi-step process. Briefly, bacterial nanocellulose (BNC) pellicles are formed from preserved G. xylinus strain according to our experimental requirements of size and morphology. A solution of iron(III) chloride hexahydrate (FeCl3·6H2O) and iron(II) chloride tetrahydrate (FeCl2·4H2O) with a 2:1 molar ratio is prepared and diluted in deoxygenated high purity water. A BNC pellicle is then introduced in the vessel with the reactants. This mixture is stirred and heated at 80 °C in a silicon oil bath and ammonium hydroxide (14%) is then added by dropping to precipitate the ferrous ions into the BNC mesh. This last step allows forming in situ magnetite nanoparticles (Fe3O4) inside the bacterial nanocellulose mesh to confer magnetic properties to BNC pellicle. A toxicological assay was used to evaluate the biocompatibility of the BNC-IONP pellicle. Polyethylene glycol (PEG) was used to cover the IONPs in order to improve their biocompatibility. Scanning electron microscopy (SEM) images showed that the IONP were located preferentially in the fibril interlacing spaces of the BNC matrix, but some of them were also found along the BNC ribbons. Magnetic force microscope measurements performed on the MBNC detected the presence magnetic domains with high and weak intensity magnetic field, confirming the magnetic nature of the MBNC pellicle. Young's modulus values obtained in this work are also in a reasonable agreement with those reported for several blood vessels in previous studies.

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Section: Introductionmentioning

confidence: 99%

Fabrication of a Functionalized Magnetic Bacterial Nanocellulose with Iron Oxide Nanoparticles

Arias

Shetty

Senpan

et al. 2016

JoVE

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“…This type of hybrid is known as a magnetic-BC nanohybrid, and it can be used in several applications, such as filtration or purification, toxic waste remediation, and loudspeaker membranes. Recently, Barud et al (2015) incorporated PEG-Fe2O3 magnetic nanoparticles into BC membranes, and the resulting hybrid presented magnetic behavior as expected. The MFM (magnetic force microscopy) phase images of the BC-Fe2O3 membrane confirmed that the nanoparticles retained their magnetic properties among the BC nanofibers network (Barud et al 2015).…”

Section: Bc-based Nanocomposites Silver Particles and Self-assemblementioning

confidence: 99%

“…Recently, Barud et al (2015) incorporated PEG-Fe2O3 magnetic nanoparticles into BC membranes, and the resulting hybrid presented magnetic behavior as expected. The MFM (magnetic force microscopy) phase images of the BC-Fe2O3 membrane confirmed that the nanoparticles retained their magnetic properties among the BC nanofibers network (Barud et al 2015). Carbon paper has both excellent conductivity and permeability.…”

Section: Bc-based Nanocomposites Silver Particles and Self-assemblementioning

confidence: 99%

“…Furthermore, they have also proposed this newly developed bacterial cellulosebased carbon paper as a binder-less porous carbon electrode for electrochemical applications following its electrochemical characterization via cyclic voltammetry. In another study, Barud and co-workers (2015) have also used bacterial cellulose as a novel material to develop bio-cellulose-based flexible magnetic paper (Barud et al 2015). Mautner et al (2015) demonstrated that bacterial cellulose-based nanopaper was suitable for tight ultrafiltration operations, while Li et al (2015) developed a low-cost and environmentally friendly paper-based device using bacterial cellulose along with other suitable materials.…”

Section: Paper Industrymentioning

confidence: 99%

“…Bacterial cellulose can be used as a template for hybrid nanocomposites, especially magnetic nanoparticles that provide the BC membrane with the ability to be sensed by an external magnetic field (Barud et al 2015). This type of hybrid is known as a magnetic-BC nanohybrid, and it can be used in several applications, such as filtration or purification, toxic waste remediation, and loudspeaker membranes.…”

Section: Bc-based Nanocomposites Silver Particles and Self-assemblementioning

confidence: 99%

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Bacterial Cellulose: A Sustainable Source to Develop Value-Added Products – A Review

Gallegos

Carrera

Parra‐Saldívar

et al. 2016

BioRes

117

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In recent decades, worldwide economic and environmental issues have prompted research scientists to re-direct their interests to bio-based resources, which are sustainable in nature. In this context, microbial polysaccharides, such as bacterial cellulose (BC), also known as microbial cellulose (MC), are some of the upcoming and emergent resources and have potential application in various bio- and non-bio-based sectors of the modern world. Many researchers have already established novel BC/MC production methods, and many new studies have been published on lab-scale and large-scale production aspects of BC/MC to date. To further expand the novel use of this sustainable source, significant progress toward the development of BC/MC has appeared in recent years. Specifically, there have been many publications and/or research reports on the valorization of BC/MC in the food, paper, materials, biomedical, pharmaceutical, and cosmeceutical industries, among others. This review will address the novel application aspects of BC/MC today, with the aim of demonstrating the importance of this sustainable and novel source in the development of value-added products.

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