In situ nano-assembly of bacterial cellulose–polyaniline composites

Shi, Zhijun; Zang, Shanshan; Jiang, Fan; Huang, Long; Lu, Dan; Ma, Yan; Yang, Guang

doi:10.1039/c1ra00719j

Cited by 162 publications

(98 citation statements)

References 42 publications

(43 reference statements)

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“…However, because of its poor dissolution properties and processing difficulties, BC's application as water adsorbent for water conservation is still limited [9,[11][12][13][14][15][16][17]. Usually, BC modification could be done with some physical or chemical methods to enhance its performance [18][19][20][21]. But to our knowledge, few work focused on the modification of BC as water adsorbent.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Bacterial Cellulose/Inorganic Gel of Bentonite Composite by In Situ Modification

Wang

Huang

et al. 2015

Indian J Microbiol

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To evaluate the possibility of Bacterial cellulose/Inorganic Gel of Bentonite (BC/IGB) composite production using in situ method, the BC/IGB composite was successfully produced by in situ modification of BC in both HS medium and corncob hydrolysate. The results showed that the BC/IGB composite obtained in HS medium (one classical medium for BC production) had a higher water holding capacity, but the water retention capacity of the BC/IGB composite obtained in corncob hydrolysate was better. The performance of BC/IGB composite depended on the environment of in situ modification. Using different media showed significant influence on the sugar utilization and BC yield. In addition, BC/IGB composite produced by in situ method was compared with that produced by ex situ method, and the results shows that water holding capacity of BC/IGB composite obtained through in situ method was better. XRD results showed the crystallinity of BC/IGB composite related little to its performance as water absorbent. Overall, in situ modification is appropriate for further production of BC composite and other clay materials.

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Section: Introductionmentioning

confidence: 99%

Preparation of Bacterial Cellulose/Inorganic Gel of Bentonite Composite by In Situ Modification

Wang

Huang

et al. 2015

Indian J Microbiol

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“…Meanwhile, BC can also be modified in situ by some additives to G. xylinum growth media, such as water soluble polysaccharides, 6 carbon nanotubes, 7 lignosulfonate, 8 polyaniline, 9 and so on, in terms of its morphology, crystalline index, water uptake capability, 10 and electroconductivity. 9 Additionally, BC does not contain any components of animal origin which may cause allergic reactions. 11 Chitosan (poly(1,4-b-D-glucopyranosamine)) is the second most abundant polysaccharide after cellulose in nature.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of a novel bacterial cellulose/chitosan bio-hydrogel

Jia

Wang

Huo³

et al. 2017

Nanomaterials and Nanotechnology

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Composites of chitosan chloride and bacterial cellulose were successfully prepared by in situ method. Composites of bacterial cellulose/chitosan and pristine bacterial cellulose were investigated by means of scanning electron microscope, atomic force microscope, Fourier transform infrared spectroscopy, thermogravimetric analysis, X-ray diffraction, and bacteriostatic test. The crystallization of bacterial cellulose was interfered and weakened by the chitosan chloride included in the growth media, resulting in lower crystallinity index and thermal stability. And interaction between two polymers is verified by the thermal gravimetric analysis. The ultrafine nanofibril network structure of bacterial cellulose was retained by the composites, while the diameters were larger and the aperture inside were smaller than those of pristine bacterial cellulose, as shown through scanning electron microscope and atomic force microscope figures. The antimicrobial effects were enhanced by the increasing concentration of chitosan in composites. All the characteristics of the composites provide evidence for the miscibility of chitosan and cellulose. Their biocompatibility is proved through our published data. It is strongly indicated that bacterial cellulose-chitosan nanocomposites have great potential in tissue engineering or pharmaceutical applications in the near future.

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“…6. The slight weight loss of pure CNF film resulted from water evaporation at around 100 °C, and the weight loss centered at about 315 °C was attributed to cellulose pyrolysis (Shi et al 2012). For the composite with 5 wt.% PANI, the light weight loss at around 100 °C was attributed to removal of moisture, and the significant weight loss appeared from 200 to 350 °C may be due to the degradation of HCl dopant and cellulose.…”

Section: Thermogravimetric Analysismentioning

confidence: 98%

“…Many cellulose-based materials, including cellulose acetate, bacterial cellulose hydrogel, bacterial cellulose membrane, and cotton linter pulp have been used to fabricate cellulose/PANI composites by different processing approaches (Hu et al 2011;Qaiser et al 2011;Shi et al 2011Shi et al , 2012. The mechanical properties and processability of PANI composites are significantly improved by the incorporation of different cellulose materials, which can self-assemble into 2-D or 3-D super strong architectures through hydrogen bonding (Razak et al 2013(Razak et al , 2014.…”

Section: Introductionmentioning

confidence: 99%

Characterization and Properties of Cellulose Nanofiber/ Polyaniline Film Composites Synthesized through in Situ Polymerization

He¹,

Tian²,

Li³

et al. 2016

BioResources

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Cellulose nanofiber/polyaniline (CNF/PANI) composites films were synthesized through in situ polymerization of aniline in a nanocellulose suspension that was isolated from bamboo (Phyllostachys nidularia Munro). The PANI contents were 5 wt.%, 15 wt.%, or 30 wt.%. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) showed that the CNF nanofibril surfaces were uniformly coated by PANI particles. Moreover, Fourier transform infrared (FTIR) spectroscopy analysis indicated the formation of hydrogen bonds between the amine groups of aniline and the hydroxyl groups of cellulose. X-ray diffraction (XRD) analysis demonstrated that the cellulose I structure of CNF in the composites did not change, while the crystallinity of CNF was affected. Thermogravimetric analysis (TGA) showed that the thermal stability of CNF was increased due to the addition of PANI. Meanwhile, the obtained electrical conductivity and mechanical properties of the CNF/PANI composites indicated that the composites could be used potentially in antistatic materials, for shielding of electromagnetic radiation, and in biological sensors.

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In situ nano-assembly of bacterial cellulose–polyaniline composites

Cited by 162 publications

References 42 publications

Preparation of Bacterial Cellulose/Inorganic Gel of Bentonite Composite by In Situ Modification

Preparation of Bacterial Cellulose/Inorganic Gel of Bentonite Composite by In Situ Modification

Preparation and characterization of a novel bacterial cellulose/chitosan bio-hydrogel

Characterization and Properties of Cellulose Nanofiber/ Polyaniline Film Composites Synthesized through in Situ Polymerization

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