Harnessing the Excellent Mechanical, Barrier and Antimicrobial Properties of Zinc Oxide (ZnO) to Improve the Performance of Starch-based Bioplastic

Abdullah, Azween; Putri, Oceu Dwi; Fikriyyah, Anti Khoerul; Nissa, Rossy Choerun; Hidayat, Syamsul; Septiyanto, Rahmat Firman; Karina, Myrtha; Satoto, Rahmat

doi:10.1080/25740881.2020.1738466

Cited by 31 publications

(10 citation statements)

References 20 publications

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“…This behaviour could be due to the fact that, when the nanoparticles are released, there are more free holes where the bioplastic is more susceptible to degradation, thus accelerating this process. This behaviour has already been reported by Abdullah et al (2020) [ 52 ]. Figure S5 shows the physical appearance of a bioplastic with 1.0 wt% nanoparticles processed at 110 °C.…”

Section: Resultssupporting

confidence: 86%

Incorporation of ZnO Nanoparticles into Soy Protein-Based Bioplastics to Improve Their Functional Properties

et al. 2021

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The union of nanoscience (nanofertilization) with controlled release bioplastic systems could be a key factor for the improvement of fertilization in horticulture, avoiding excessive contamination and reducing the price of the products found in the current market. In this context, the objective of this work was to incorporate ZnO nanoparticles in soy protein-based bioplastic processed using injection moulding. Thus, the concentration of ZnO nanoparticles (0 wt%, 1.0 wt%, 2.0 wt%, 4.5 wt%) and mould temperature (70 °C, 90 °C and 110 °C) were evaluated through a mechanical (flexural and tensile properties), morphological (microstructure and nanoparticle distribution) and functional (water uptake capacity, micronutrient release and biodegradability) characterization. The results indicate that these parameters play an important role in the final characteristics of the bioplastics, being able to modify them. Ultimately, this study increases the versatility and functionality of the use of bioplastics and nanofertilization in horticulture, helping to prevent the greatest environmental impact caused.

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Section: Resultssupporting

confidence: 86%

Incorporation of ZnO Nanoparticles into Soy Protein-Based Bioplastics to Improve Their Functional Properties

et al. 2021

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“…Moreover, there was a slight decrease in this blend index compared to the sample without nano-sized ZnO particles (SPGC). These results were consistent with other studies [34,35] and could be explained by the tortuous pathways created, which might have favored the narrowing of pore channels, and due to the increased diffusion paths of the polymer matrix, which led to an improved water barrier property. Wound dressing materials with a much higher swelling index are equipped to absorb wound bed fluids effectively.…”

Section: Starch-based Films' Swelling Indexsupporting

confidence: 93%

Preparing and Characterizing Novel Biodegradable Starch/PVA-Based Films with Nano-Sized Zinc-Oxide Particles for Wound-Dressing Applications

Delavari

Stiharu

2022

Applied Sciences

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Given recent worldwide environmental concerns, biodegradability, antibacterial activity, and healing properties around the wound area are vital features that should be taken into consideration while preparing biomedical materials such as wound dressings. Some of the available wound dressings present some major disadvantages. For example, low water vapor transmission rate (WVTR), inadequate exudates absorption, and the complex and high environmental cost of the disposal/recycling processes represent such drawbacks. In this paper, starch/polyvinyl alcohol (PVA) material with inserted nano-sized zinc-oxide particles (nZnO) (average size ≤ 100 nm) was made and altered using citric acid (CA). Both ensure an efficient antibacterial environment for wound-dressing materials. The film properties were assessed by UV–Vis spectrometry and were validated against the UV light transmission percentage of the starch/ polyvinyl alcohol (PVA)/ zinc-oxide nanoparticles (nZnO) composites. Analyses were conducted using X-ray Spectroscopy (EDX) and scanning electron microscopy (SEM) to investigate the structure and surface morphology of the materials. Moreover, to validate an ideal moisture content around the wound area, which is necessary for an optimum wound-healing process, the water vapor transmission rate of the film was measured. The new starch-based materials exhibited suitable physical and chemical properties, including solubility, gel fraction, fluid absorption, biodegradability, surface morphology (scanning electron microscopy imaging), and mechanical properties. Additionally, the pH level of the starch-based/nZnO film was measured to study the prospect of bacterial growth on this wound-dressing material. Furthermore, the in vitro antibacterial activity demonstrated that the dressings material effectively inhibited the growth and penetration of bacteria (Escherichia coli, Staphylococcus aureus).

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“…[ 68 ] Additionally, it was indicated that the release of Zn +2 ion from ZnO was harmful to microorganisms and this causes reducing biodegradability. [ 69 ] When bioplastic containing 1% ZnO was completely biodegrading for 30 days, bioplastic with 6% ZnO showed more biodegradation time since a large amount ZnO ensured more durable bioplastics. [ 70 ] In line with these reports, the content of 3% Zn might reduce the biodegradability of bioplastic films in our study.…”

Section: Resultsmentioning

confidence: 99%

The simultaneous extraction of cellulose fiber and crystal biogenic silica from the same rice husk and evaluation in cellulose‐based composite bioplastic films

et al. 2022

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Bioplastics are environmental‐friendly materials that have been essentially required to reduce global pollution resulting from the accumulation of conventional plastics. The current study was focused on simultaneous extraction of cellulose fiber and crystal biogenic silica from the same rice husks and preparation of silica‐reinforced cellulose‐based composite bioplastic films via casting method to evaluate in packaging applications. Herein, ZnCl2 was utilized as a solvent for the extracted cellulose fiber for the first time. As the silica content increased, barrier properties of bioplastic films increased. The highest tensile strength value in bioplastic films was obtained at 1347 kN/m2 with 2% weight silica content. The biodegradability of bioplastic films in the soil after 21 days varied between 25.5% and 55.7%, which values were significantly higher than conventional plastics. After evaluating these properties, we strongly believe that composite bioplastic films have a high potential to be utilized as green packaging material.

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Harnessing the Excellent Mechanical, Barrier and Antimicrobial Properties of Zinc Oxide (ZnO) to Improve the Performance of Starch-based Bioplastic

Cited by 31 publications

References 20 publications

Incorporation of ZnO Nanoparticles into Soy Protein-Based Bioplastics to Improve Their Functional Properties

Incorporation of ZnO Nanoparticles into Soy Protein-Based Bioplastics to Improve Their Functional Properties

Preparing and Characterizing Novel Biodegradable Starch/PVA-Based Films with Nano-Sized Zinc-Oxide Particles for Wound-Dressing Applications

The simultaneous extraction of cellulose fiber and crystal biogenic silica from the same rice husk and evaluation in cellulose‐based composite bioplastic films

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