Physical, Mechanical and Electrical Properties of Chitosan/Graphene Oxide Composite Films for Copper Ions (Cu2+) Detection

Majid, M. A.; Osman, Nurul Huda; Tamchek, N.; Sukri, N.A.A.; Mazlan, Hazeem Ikhwan; Mazu, Nurul Najiha; Idris, Adilah; Liew, Josephine Ying Chyi; Ramli, Muhammad Mahyiddin

doi:10.1007/s10924-023-02831-z

Cited by 2 publications

(1 citation statement)

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“…In addition to the increased surface area of the particles, there were greater filler/polymer matrix interfacial relationships, which enhanced the shear mechanism's capacity to transfer stress from the chitosan matrix to MOSP. Tensile values of the biocomposite film were increased, and the load was dealt with with greater efficiency [94]. On the other hand, the chitosan/TA film showed an EAB that was 28.5% with a 5.0 wt.% of MOSP loading and 37.1% at a 10.0 wt.% MOSP loading [Figure 7B].…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Chitosan-Based Films Blended with Tannic Acid and Moringa Oleifera for Application in Food Packaging: The Preservation of Strawberries (Fragaria ananassa)

Venkatesan,

Vetcher,

Al-Asbahi

et al. 2024

Polymers

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Biobased plastics provide a sustainable alternative to conventional food packaging materials, thereby reducing the environmental impact. The present study investigated the effectiveness of chitosan with varying levels of Moringa oleifera seed powder (MOSP) and tannic acid (TA). Chitosan (CS) biocomposite films with tannic acid acted as a cross-linker, and Moringa oleifera seed powder served as reinforcement. To enhance food packaging and film performance, Moringa oleifera seed powder was introduced at various loadings of 1.0, 3.0, 5.0, and 10.0 wt.%. Fourier-transform infrared spectroscopy, X-ray diffraction, and scanning electron microscopy analyses were performed to study the structure and morphology of the CS/TA/MOSP films. The scanning electron microscopy results confirmed that chitosan/TA with 10.0 wt.% of MOSP produced a lightly miscible droplet/matrix structure. Furthermore, mechanical properties, swelling, water solubility, optical barrier, and water contact angle properties of the film were also calculated. With increasing Moringa oleifera seed powder contents, the biocomposite films’ antimicrobial and antifungal activity increased at the 10.0 wt.% MOSP level; all of the observed bacteria [Staphylococcus aureus (S. aureus), Escherichia coli (E. coli), Aspergillus niger (A. niger), and Candida albicans (C. albicans)] had a notably increased percentage of growth. The film, with 10.0 wt.% MOSP content, effectively preserves strawberries’ freshness, making it an ideal food packaging material.

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Section: Mechanical Propertiesmentioning

confidence: 99%