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Synthesis of flexible magnetic nanohybrid based on bacterial cellulose under ultrasonic irradiation.

Synthesis of flexible magnetic nanohybrid based on bacterial cellulose under ultrasonic irradiation.

Materials science & engineering. C, Materials for biological applications (2013-03-19)

Yi Zheng, Jingxuan Yang, Weili Zheng, Xiao Wang, Cao Xiang, Lian Tang, Wen Zhang, Shiyan Chen, Huaping Wang

ABSTRACT

Flexible magnetic membrane based on bacterial cellulose (BC) was successfully prepared by in-situ synthesis of the Fe3O4 nanoparticles under different conditions and its properties were characterized. The results demonstrated that the Fe3O4 nanoparticles coated with PEG were well homogeneously dispersed in the BC matrix under ultrasonic irradiation with the saturation magnetization of 40.58 emu/g. Besides that, the membranes exhibited the striking flexibility and mechanical properties. This study provided a green and facile method to inhibit magnetic nanoparticle aggregation without compromising the mechanical properties of the nanocomposites. Magnetically responsive BC membrane would have potential applications in electronic actuators, information storage, electromagnetic shielding coating and anti-counterfeit.

MATERIALS

Product Number

Brand

Product Description

Supelco

Avicel^® PH-101, ~50 μm particle size

Sigma-Aldrich

α-Cellulose, powder

Sigma-Aldrich

Sigmacell Cellulose, Type 20, 20 μm

Sigma-Aldrich

Sigmacell Cellulose, Type 50, 50 μm

Sigma-Aldrich

Sigmacell Cellulose, Type 101, Highly purified, fibers

Sigma-Aldrich

α-Cellulose, BioReagent, suitable for insect cell culture

Sigma-Aldrich

Iron oxide(II,III), magnetic nanoparticles solution, 5 nm avg. part. size, 5 mg/mL in toluene

Sigma-Aldrich

Iron oxide(II,III), magnetic nanoparticles solution, 20 nm avg. part. size, 5 mg/mL in toluene

Sigma-Aldrich

Iron oxide(II,III), magnetic nanoparticles solution, 10 nm avg. part. size, 5 mg/mL in toluene

Sigma-Aldrich

Cellulose, microcrystalline, powder

Sigma-Aldrich

Iron oxide(II,III), magnetic nanoparticles solution, 5 nm avg. part. size, 5 mg/mL in H₂O

Sigma-Aldrich

Iron oxide(II,III), magnetic nanoparticles solution, 20 nm avg. part. size, 5 mg/mL in H₂O

Sigma-Aldrich

Iron oxide(II,III), magnetic nanoparticles solution, 10 nm avg. part. size, 5 mg/mL in H₂O

Sigma-Aldrich

Cellulose, microcrystalline, powder, 20 μm

Sigma-Aldrich

Avicel^® PH-101, tested according to Ph. Eur.

Supelco

Cellulose, powder, for column chromatography

Sigma-Aldrich

Cellulose, colloidal, microcrystalline

Sigma-Aldrich

Iron(II,III) oxide, powder, <5 μm, 95%

Sigma-Aldrich

Iron(II,III) oxide, 99.99% trace metals basis

Supelco

Cellulose, acid washed, from spruce, for column chromatography

Supelco

Cellulose, DFS-0, microcrystalline, suitable for thin layer chromatography (TLC)

Supelco

Cellulose, acid washed, powder, for column chromatography

Sigma-Aldrich

Cellulose, fibers, (medium)

Sigma-Aldrich

Iron(II,III) oxide, nanopowder, 50-100 nm particle size (SEM), 97% trace metals basis

Supelco

Cellulose, DS-0, powder, suitable for thin layer chromatography (TLC)