Effects of Ultrasonication Time on the Properties of Polyvinyl Alcohol/Sodium Carboxymethyl Cellulose/Nano-ZnO/Multilayer Graphene Nanoplatelet Composite Films

Ji, Tengteng; Zhang, Rong; Dong, Xiaorong; Sameen, Dur E.; Ahmed, Saeed; Li, Suqing; Liu, Yaowen

doi:10.3390/nano10091797

Cited by 21 publications

(4 citation statements)

References 63 publications

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“…Furthermore, sonication also enhanced the antimicrobial activities by the controlled generation of reactive oxygen species in the microbial cells [ 53 ]. Ji et al [ 54 ] found that the sonication of composite films more effectively inhibits the gram-negative bacteria than the gram-positive bacteria. This was mainly due to the strong interaction of S. aureus with the negatively charged reactive oxygen species (ROS) produced by sonication.…”

Section: Resultsmentioning

confidence: 99%

Application of Clove Oil and Sonication Process on the Influence of the Functional Properties of Mung Bean Flour-Based Edible Film

Keawpeng

Lekjing

Paulraj³

et al. 2022

Membranes

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The present study was aimed to investigate the effects of sonication and clove oil incorporation on the improvement of physical, antioxidant, and antimicrobial properties and lipid oxidation inhibiting abilities of mung bean flour (MF)-based films. There were three groups of films tested (1) MF: mung bean flour alone, (2) MFC: MF incorporated with 2% clove oil (C), and (3) MFCU: MFC prepared with sonication (25 kHz, 100% amplitude, 10 min). Film thickness and bulk density showed slight differences, and moisture content, solubility, and water vapor permeability significantly differed between the formulations. Tensile strength, elongation at break, and Young’s modulus were highest for the MFCU films, followed by MFC and MF in rank order. Furthermore, the Fourier-transform infrared spectroscopy results also demonstrated that the clove oil and sonication treatment had improved the interconnections of the biopolymers, thus increasing the physical strength of the film. Phytochemicals in terms of total phenolics and total flavonoids were elevated in the MFCU films and contributed to stronger radical scavenging abilities (p < 0.05). MFC and MFCU films showed a strong antibacterial control of the Gram-positive Staphylococcus aureus (S. aureus) and also of the Gram-negative Campylobacter jejuni (C. jejuni). Overall, the lipid oxidation indicators Thiobarbituric acid reactive substances (TBARS, peroxide value, p-anisidine value, and totox value) showed significantly high inhibition, attributed to radical scavenging activities in the MFCU and MFC samples. The mung bean flour films incorporated with clove oil and prepared with sonication have good potential as packaging materials for food due to strong physical, antimicrobial, and antioxidant properties, as well as lipid oxidation inhibiting abilities.

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Section: Resultsmentioning

confidence: 99%

Application of Clove Oil and Sonication Process on the Influence of the Functional Properties of Mung Bean Flour-Based Edible Film

Keawpeng

Lekjing

Paulraj³

et al. 2022

Membranes

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“…Beikzadeh et al [23] found that prolonged sonication could break down the polysaccharide chains and induce a new chemical bond, and therefore, a denser film network formed. Ji et al [24] reported that the extended sonication time had increased the composite film's color and transmittance.…”

Section: Color Characteristicsmentioning

confidence: 99%

Antioxidant and Antimicrobial Properties of Mung Bean Phyto-Film Combined with Longkong Pericarp Extract and Sonication

Keawpeng

Paulraj²,

Venkatachalam

2022

Membranes

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Mung bean (Vigna radiata) flour serves as an excellent biopolymer and a potential material for producing antioxidant and antimicrobial phyto-films. In addition to mung bean flour, this study also combined the longkong (Aglaia dookkoo Griff.) pericarp extract (LPE, 1.5%) and ultrasonication process (0 (C1), 2 (T1), 4 (T2), 6 (T3), 8 (T4), and 10 (T5) min, sonicated at 25 kHz, 100% amplitude) in film emulsion production to improve the antioxidant and antimicrobial efficiency in the phyto-films. This study showed that sonication increased the phyto-films’ color into more lightness and yellowness, and the intensity of the color changes was in accordance with the increased sonication time. Alternatively, the thickness, water vapor permeability, and solubility of the films were adversely affected by extended sonication. In addition, elongation at break and tensile strength increased while the Young modulus decreased in the phyto-films with the extended sonication. Furthermore, the droplet size and polydispersity index of the phyto-films decreased with extended sonication. Conversely, the zeta potential of the film tended to increase with the treatments. Furthermore, phytochemicals such as total phenolic content and total flavonoid contents, and the radical scavenging ability of phyto-films against the DPPH radical, ABTS radical, superoxide radical, hydroxyl radical, and ferrous chelating activity, were significantly higher, and they were steadily increased in the films with the extended sonication time. Furthermore, the phyto-films showed a significant control against Gram (-) pathogens, followed by Gram (+) pathogens. A higher inhibitory effect was noted against L. monocytogens, followed by S. aureus and B. subtilis. Similarly, the phyto-films also significantly inhibited the Gram (-) pathogens, and significant control was noted against C. jejuni, followed by E. coli and P. aeruginosa. Regardless of the mung bean flour, this study found that longkong pericarp extract and the sonication process could also effectively be used in the film emulsions to enhance the efficiency of the antioxidant and antimicrobial properties of phyto-films.

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“…Due to its superior mechanical properties, swelling ability, inexpensive cost, and greater number of constituents than pure CMC hydrogels, PVP/CMC blend hydrogel has a significant potential for application as a wound dressing [10,11]. PVP/CMC and PVP/CMC/BA hydrogels might work well for treating and healing wounds [12,13].…”

Section: Introductionmentioning

confidence: 99%

"Development of Methylcellulose/ Polyvinylpyrrolidone Nanocomposites Enriched with Biogenic Zinc Oxide Nanoparticles for Wound Healing Applications"

Mondal

2023

BJSTR

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Due to their enhanced antibacterial activity and minimal cytotoxicity, nanocomposite hydrogels have been considered attractive materials for biomedical applications. Maleic acid was used as a crosslinker in the development of methylcellulose/PVP/ZnO nanocomposite hydrogels. FESEM, FTIR, EDX, hemolytic and antioxidant tests were carried out to evaluate the prepared nanocomposites. FESEM and EDX measurements confirmed the presence of ZnO nanoparticles in the polymer matrix. The DLS revealed testing that the particle's maximum diameter is 50.7 nm, confirming the particle size and stability of the biogenic ZnO NPs. ZnO NPs incorporated nanocomposites exhibited excellent biodegradability and enhanced antioxidant activity. MC/PVP/ZnO nanocomposites exhibited a significant zone of inhibition against E. coli and S. aureus bacteria. The results showed that the prepared nanocomposites have high porosity (>80%), swelling properties, and antioxidant activity (>35%). The hemolytic activity test demonstrates that the developed nanocomposites are nontoxic. These findings significantly support the use of these innovative MC/PVP/ZnO bio-nanocomposite dressings for wound healing applications.

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Effects of Ultrasonication Time on the Properties of Polyvinyl Alcohol/Sodium Carboxymethyl Cellulose/Nano-ZnO/Multilayer Graphene Nanoplatelet Composite Films

Cited by 21 publications

References 63 publications

Application of Clove Oil and Sonication Process on the Influence of the Functional Properties of Mung Bean Flour-Based Edible Film

Application of Clove Oil and Sonication Process on the Influence of the Functional Properties of Mung Bean Flour-Based Edible Film

Antioxidant and Antimicrobial Properties of Mung Bean Phyto-Film Combined with Longkong Pericarp Extract and Sonication

"Development of Methylcellulose/ Polyvinylpyrrolidone Nanocomposites Enriched with Biogenic Zinc Oxide Nanoparticles for Wound Healing Applications"

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