Fabrication and Characterisation of Functionalised Superparamagnetic Bacterial Nanocellulose Using Ultrasonic-Assisted In Situ Synthesis

Yingkamhaeng, Naiyasit; Intapan, Ittinet; Sukyai, Prakit

doi:10.1007/s12221-018-7738-6

Cited by 19 publications

(10 citation statements)

References 44 publications

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“…The magnetic responsive behavior of pure Fe3O4 and their corresponding nanocomposite films, were evaluated using a vibrating sample magnetometer (Model M2000/2100) following [ 37 ].…”

Section: Methodsmentioning

confidence: 99%

Development of Nanocomposite Film Comprising of Polyvinyl Alcohol (PVA) Incorporated with Bacterial Cellulose Nanocrystals and Magnetite Nanoparticles

et al. 2021

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Nanocomposite film of poly(vinyl alcohol) (PVA) incorporated with bacterial cellulose nanocrystals (BCNCs) and magnetite nanoparticles (Fe3O4) is reported in this study. The BCNC-Fe3O4 nanoparticles and PVA film was prepared by in situ synthesis technique using chemical co-precipitation. Different concentrations of BCNC-Fe3O4 (20%, 40% and 60% w/w) were mechanically dispersed in PVA solution to form the nanocomposite film. Transmission electron microscopy (TEM) analysis of BCNC-Fe3O4 nanoparticles showed irregular particle sizes ranging from 4.93 to 30.44 nm with an average size distribution of 22.94 nm. The presence of characteristic functional groups of PVA, BCNC and Fe3O4 were confirmed by Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD) analysis. Scanning electron microscope (SEM) attached energy dispersive spectroscopy (EDS) and vibrating sample magnetometer (VSM) analysis revealed that, the iron content and magnetic property increased with increasing BCNC-Fe3O4 content. The saturation magnetizations (MS) value increased from 5.14 to 11.56 emu/g. The PVA/ BCNC-Fe3O4 at 60% showed the highest Young’s modulus value of 2.35 ± 0.16 GPa. The prepared film could be a promising polymeric nanomaterial for various magnetic-based applications and for the design of smart electronic devices.

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“…The magnetic responsive behavior of pure Fe3O4 and their corresponding nanocomposite films, were evaluated using a vibrating sample magnetometer (Model M2000/2100) following [ 37 ].…”

Section: Methodsmentioning

confidence: 99%

Development of Nanocomposite Film Comprising of Polyvinyl Alcohol (PVA) Incorporated with Bacterial Cellulose Nanocrystals and Magnetite Nanoparticles

et al. 2021

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“…Dolazi do interakcije elektron bogatim atomima polarnih hidroksilnih i etarskih grupa BNC-a sa elektropozitivnim metalnim katjonom. Nakon dodatka NH4OH u ultrazvučnom okruženju katalizuje se konverzija Fe 2+ i Fe 3+ jona u Fe3O4 [19]. Produženim stajanjem BNC u rastvoru soli omogućava se jonima gvožđa da uniformnije difunduju u zapreminu filma i nakon precipitacije, rezultat je uniformnija struktura.…”

Section: Metode Karakterizacijeunclassified

“…Analizom spektara se najpre uočava da pikovi uzorka BNCFe2 imaju znatno manji intenzitet od BNCFe1, ali uz napomenu da prate identične karakteristične položaje. Na talasnom broju ~ 3340 cm -1 detektovan je mod istežuće vibracije OH grupe, dok je na talasnom broju ~ 2900 cm -1 detektovana istežuća vibracija CH grupe, što može da ukazuje na pristustvo amorfne nanoceluloze [19,20].…”

Section: Slika 2 -Ftir Spektri Uzoraka Bncfe1 I Bncfe2unclassified

Optimization of the synthesis parameters of nanocomposites based on bacterial nanocellulose/Fe3O4

Janićijević¹,

Sknepnek²,

Mirković³

et al. 2021

Tehnika

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Development in many areas of engineering and technology are closely linked to the development of new or improvement of existing materials. Having in mind wide use of bacterial nanocellulose (BNC) in various areas of everyday life, from biomedicine, ecology to electronics, BNC-based composites are becoming widely used and attracting the attention of the scientific community. It is especially important to examine in detail the synthesis parameters that affect the changes in the crystal structure and morphology of the obtained composites, having in mind that these changes have a crucial influence on their final functional properties. In this paper, a composite material based on bacterial nanocellulose BNC (as the matrix) and ferromagnetic Fe3O4 was studied. BNC was obtained by the activity of acetic fermentation bacteria after 7 days of growth in a suitable medium. The research is aimed to optimization of the Fe3O4 precipitation conditions. It's especially considering the time interval of BNC films spend in the iron salt solution. The influence of the performed synthesis conditions was considered by the SEMEDS, FTIR and XRD methods.

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“…Most of the studies on the BC production have been carried out in the media containing chemicals such as sugar (glucose, sucrose, fructose, mannitol, and arabitol) as carbon source, complex nitrogen, and vitamin sources such as yeast extract and polypeptone. 7,[15][16][17] Thus, there is always a need for introducing more simple and cost effective substrates for the production of BC and BC nanocomposites. It has been reported that Kombucha which is composed of yeast and acetic acid bacteria especially A. xylinum, forms a cellulose pellicle on sweeten tea.…”

Section: Introductionmentioning

confidence: 99%

“…The Gram‐negative bacterium Acetobacter xylinum is the most studied and promising bacteria for producing the bacterial cellulose. Most of the studies on the BC production have been carried out in the media containing chemicals such as sugar (glucose, sucrose, fructose, mannitol, and arabitol) as carbon source, complex nitrogen, and vitamin sources such as yeast extract and polypeptone 7,15–17 . Thus, there is always a need for introducing more simple and cost effective substrates for the production of BC and BC nanocomposites.…”

Section: Introductionmentioning

confidence: 99%

Innovative preparation of bacterial cellulose/silver nanocomposite hydrogels: In situ green synthesis, characterization, and antibacterial properties

Sarkandi

Montazer

Harifi

et al. 2020

J of Applied Polymer Sci

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In this study, an innovative in situ green strategy was applied to prepare bacterial cellulose/silver nanocomposites using green tea as a substrate for the fermentation of Acetobacter xylinum bacteria and a reducing agent for the in situ synthesis of silver nanoparticles. The samples were analyzed by different characterization tests including field emission scanning electron microscopy (FESEM), X-ray diffraction analysis (XRD), UV-vis spectroscopy, atomic absorption spectroscopy, and ATR. The results indicated the excellent antibacterial activities with 100% bacterial reduction percentage and inhibition zones of 2.6 and 2.8 cm against S. aureus and E. coli, respectively. Moreover, water absorption percentage and vertical wicking measurements supported the hydrogel properties of the prepared bio-cellulose/silver nanocomposites. Finding of this research suggested the potential of the proposed green route for preparing antibacterial BC which can be regarded as a candidate for future wound healing applications.

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Fabrication and Characterisation of Functionalised Superparamagnetic Bacterial Nanocellulose Using Ultrasonic-Assisted In Situ Synthesis

Cited by 19 publications

References 44 publications

Development of Nanocomposite Film Comprising of Polyvinyl Alcohol (PVA) Incorporated with Bacterial Cellulose Nanocrystals and Magnetite Nanoparticles

Development of Nanocomposite Film Comprising of Polyvinyl Alcohol (PVA) Incorporated with Bacterial Cellulose Nanocrystals and Magnetite Nanoparticles

Optimization of the synthesis parameters of nanocomposites based on bacterial nanocellulose/Fe3O4

Innovative preparation of bacterial cellulose/silver nanocomposite hydrogels: In situ green synthesis, characterization, and antibacterial properties

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