Synthesis of methylcellulose–silver nanocomposite and investigation of mechanical and antimicrobial properties

Maity, Dipanwita; Mollick, Md. Masud Rahaman; Mondal, Dibyendu; Bhowmick, Biplab; Bain, Mrinal Kanti; Bankura, Kalipada; Sarkar, Joy; Acharya, Krishnendu; Chattopadhyay, Dipankar

doi:10.1016/j.carbpol.2012.07.082

Cited by 66 publications

(32 citation statements)

References 51 publications

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“…For film containing Ag nanoparticles, the intensity of absorption is higher than that of ZnO nanoparticles, which suggests that the absorption capacity of silver nanoparticles is less than that of ZnO nanoparticles. It is clear that nanobiocomposite film containing ZnO alone has the best UV absorption performance, which is in consistent with the results of other researchers (Cárdenas, Diaz, Meléndrez, Cruzat, & Garcia Cancino, ; Li, Deng, Deng, Liu, & Li, ; Maity et al., ; Moura, Mattoso, & Zucolotto, ; Nafchi, Alias, Mahmud, & Robal, ; Pinto et al., ; Yu, Yang, Liu, & Ma, ). Figure shows the effect of Ag, ZnO, and CuO incorporation into a CMC polymer matrix in the preparation of 2% nanoparticle nanobiocomposites on the absorption rate of ultraviolet radiation in the wavelength range of 200 to 800 nm.…”

Section: Resultssupporting

confidence: 90%

Development of Antibacterial Carboxymethyl Cellulose‐Based Nanobiocomposite Films Containing Various Metallic Nanoparticles for Food Packaging Applications

Ebrahimi

Peighambardoust

et al. 2019

Journal of Food Science

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In this study, silver (Ag), zinc oxide (ZnO), and copper oxide (CuO) metallic nanoparticles were used in preparation of carboxymethyl cellulose (CMC) nanobiocomposite films. Scanning electron microscopy (SEM), X‐ray diffraction (EDXA), water vapor permeability (WVP), ultraviolet and visible light (UV–Vis) spectroscopy, and mechanical and microbial tests were used to determine the characteristics of the obtained active films. SEM results showed that the CMC nanobiocomposite films had roughness deflection levels and the EDXA test confirmed the presence of Ag, ZnO, and Cuo nanoparticles in the biopolymer tissue. UV–Vis spectroscopy confirmed that with addition of metallic nanoparticles to the pure CMC film, absorption rate increased and WVP decreased. In the mechanical tests, addition of nanoparticles also increased the tensile strength of the films, and the nanobiocomposite films exhibited higher resistance compared to the pure CMC film. Films incorporating metallic nanoparticles showed antibacterial properties against Escherichia coli and Staphylococcus aureus growth. Thus, nanobiocomposite films can be used as active packaging films and could increase the shelf‐life of the food.

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Section: Resultssupporting

confidence: 90%

Development of Antibacterial Carboxymethyl Cellulose‐Based Nanobiocomposite Films Containing Various Metallic Nanoparticles for Food Packaging Applications

Ebrahimi

Peighambardoust

et al. 2019

Journal of Food Science

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“…These results were consistent with those reported in the literature. 39,40 All peaks infrared absorption characteristics of PSf are present in FTIR spectra of PSf/MC membranes (Figure 7a,7c). In addition to the PSf absorption peaks, new peaks were observed in the region of 3200-3500 cm -1 characteristic to the hydroxyl groups (O-H) due probably to the presence of MC in the membranes matrix (Figure 7b).…”

Section: Membrane Surface Chemistrymentioning

confidence: 99%

Effects of Methylcellulose on the Properties and Morphology of Polysulfone Membranes Prepared by Phase Inversion

et al. 2017

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Polymer solutions of polysulfone (PSf) and methylcellulose (MC) in 1-methyl-2-pyrrolidone (NMP) were used to prepare ultrafiltration membranes by the phase inversion technique via immersion precipitation. The effect of MC additive on the structure and performances of the membranes was studied. The obtained membranes were characterized by scanning electron microscopy (SEM), differential scanning calorimetry (DSC), infrared spectroscopy (FTIR-ATR), equilibrium water content (EWC), water contact angle, porosity and ultrafiltration experiments of polyethylene glycol solutions. It was found that all the PSf/MC membranes had higher porosity, more hydrophilic surface and more vertically finger like pores than PSf membrane. With an increase in MC content in the casting solution from 0.5% to 1.5%, the hydraulic permeability increases from 17.17 to 118.46 L.m -2 .h -1 .bar -1 , while the rejection decreases from 91.82% to 64.45% with PEG 35000. DSC scan and FTIR analysis confirmed that methylcellulose was trapped in the membranes matrix.

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“…Furthermore, the method of production of the silver colloid has been adjusted where previously the MC polymer co‐acted also as the colloid capping agent. This modification was necessary to obtain a more homogeneous dispersion of highly concentrated nanoparticles into the MC matrix preventing their simultaneous agglomeration which can ultimately reduce SERS activity . To incorporate a more stable silver colloid from the offset into the MC, a 1% w sodium citrate as capping agent was added to the glucose reduced silver colloid.…”

Section: Resultsmentioning

confidence: 99%

Monitoring of optimized SERS active gel substrates for painting and paper substrates by unilateral NMR profilometry

Presciutti

Sgamellotti

Brunetti

et al. 2014

J Raman Spectroscopy

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In order to realize a surface enhanced Raman spectroscopy (SERS) gel protocol with portable Raman instrumentation, this contribution oversees the optimization of a removable SERS active methylcellulose gel and the applicability of an innovative gelatin substrate. Analytical evaluations by non‐invasive portable nuclear magnetic resonance (NMR) profilometry with regards to methylcellulose and gelatin film penetration and removal from an unvarnished painted surface and commercial dyed paper substrates have been carried out, respectively, following successful SERS measurements. Both gels have been specifically prepared in accordance to the substrate under exam so as to simultaneously permit sufficient surface interaction for Raman enhancements to be recorded with limited penetration into or subsequent damage on removal of the matrix under study. This work continues to bridge the gap towards non‐invasive SERS measurements and in‐situ SERS measurements. Copyright © 2014 John Wiley & Sons, Ltd.

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Synthesis of methylcellulose–silver nanocomposite and investigation of mechanical and antimicrobial properties

Cited by 66 publications

References 51 publications

Development of Antibacterial Carboxymethyl Cellulose‐Based Nanobiocomposite Films Containing Various Metallic Nanoparticles for Food Packaging Applications

Development of Antibacterial Carboxymethyl Cellulose‐Based Nanobiocomposite Films Containing Various Metallic Nanoparticles for Food Packaging Applications

Effects of Methylcellulose on the Properties and Morphology of Polysulfone Membranes Prepared by Phase Inversion

Monitoring of optimized SERS active gel substrates for painting and paper substrates by unilateral NMR profilometry

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