Surface Modified Carbon Nanotubes in Food Packaging

Hui, Shalmali; Das, Narayan Chandra

doi:10.1021/bk-2022-1425.ch009

Cited by 4 publications

(5 citation statements)

References 110 publications

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“…Surface functionalization and modification of CNTs can improve their compatibility and interaction with the polymer matrix, making them biocompatible and non-toxic to a certain extent [52]. Specifically, techniques such as polymer grafting/encapsulation, polynuclear aromatic compounds, surfactant adsorption, and NPs decarbonization can modify van der Waals forces and π-stacking interactions, thereby altering the surface properties of CNTs and improving their compatibility in the polymer matrix [52]. Meanwhile, the carboxyl or amino modification of CNTs has been reported to help PLA-based materials change the stiffness storage modulus and mechanical properties [53].…”

Section: Carbon Nanotubesmentioning

confidence: 99%

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Nanofillers in Novel Food Packaging Systems and Their Toxicity Issues

Zhou,

Zhou

et al. 2024

Foods

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Background: Environmental concerns about petroleum-based plastic packaging materials and the growing demand for food have inspired researchers and the food industry to develop food packaging with better food preservation and biodegradability. Nanocomposites consisting of nanofillers, and synthetic/biopolymers can be applied to improve the physiochemical and antimicrobial properties and sustainability of food packaging. Scope and approach: This review summarized the recent advances in nanofiller and their applications in improved food packaging systems (e.g., nanoclay, carbon nanotubes), active food packaging (e.g., silver nanoparticles (Ag NPs), zinc oxide nanoparticles (ZnO NPs)), intelligent food packaging, and degradable packaging (e.g., titanium dioxide nanoparticles (e.g., TiO2 NPs)). Additionally, the migration processes and related assessment methods for nanofillers were considered, as well as the use of nanofillers to reduce migration. The potential cytotoxicity and ecotoxicity of nanofillers were also reviewed. Key findings: The incorporation of nanofillers may increase Young’s modulus (YM) while decreasing the elongation at break (EAB) (y = −1.55x + 1.38, R2 = 0.128, r = −0.358, p = 0.018) and decreasing the water vapor (WVP) and oxygen permeability (OP) (y = 0.30x − 0.57, R2 = 0.039, r = 0.197, p = 0.065). Meanwhile, the addition of metal-based NPs could also extend the shelf-life of food products by lowering lipid oxidation by an average of approx. 350.74% and weight loss by approx. 28.39% during the longest storage period, and significantly increasing antibacterial efficacy against S. aureus compared to the neat polymer films (p = 0.034). Moreover, the migration process of nanofillers may be negligible but still requires further research. Additionally, the ecotoxicity of nanofillers is unclear, as the final distribution of nanocomposites in the environment is unknown. Conclusions: Nanotechnology helps to overcome the challenges associated with traditional packaging materials. Strong regulatory frameworks and safety standards are needed to ensure the appropriate use of nanocomposites. There is also a need to explore how to realize the economic and technical requirements for large-scale implementation of nanocomposite technologies.

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Section: Carbon Nanotubesmentioning

confidence: 99%

“…In addition, the presence of metal impurities in CNTs may lead to differences in cytotoxicity, thus requiring special consideration for the development of improved purification techniques such as neutron activation analysis, ICP-MS, etc. [52].…”

Section: Carbon Nanotubesmentioning

confidence: 99%

Nanofillers in Novel Food Packaging Systems and Their Toxicity Issues

Zhou,

Zhou

et al. 2024

Foods

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“…Furthermore, CNTs can be integrated into biopolymers improving its antimicrobial properties as illustrated in Table 10 . 150 For example, Cui et al (2020) 146 demonstrated that a film containing polylactic acid/poly(ε-caprolactone)/carbon nanotubes/cinnamaldehyde exhibited a sustained cinnamaldehyde release and prolonged its antibacterial effects on S. aureus and E. coli for 21 days, surpassing the film without CNTs by 7 days. Further, the antibacterial properties and thermo-mechanical features of polylactic acid are significantly enhanced by the incorporation of Ag NPs and CNTs.…”

Section: Effect Of the Most Used Nanoparticles In Food Packagingmentioning

confidence: 99%

Nanotechnology in food packaging materials: role and application of nanoparticles

Herrera-Rivera,

Torres-Arellanes,

Cortés-Martínez

et al. 2024

RSC Adv.

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“…Currently, carbon nanomaterials have attracted significant attention worldwide in modern food-packaging technology due to their easy functionalization, high surface area-tovolume ratio, excellent antimicrobial activity, superb physico-mechanical and water resistance properties, strong adsorptive ability, high thermal, and electrical conductivity,. CNTs-based nano-sensors offer a better assessment of the freshness, security, safety, quality, and packaging of food products [89].…”

Section: Carbon Nanotubes As Preservativesmentioning

confidence: 99%

Synthesis, Properties, and Applications of Carbon Nanotubes: An Overview

Hussain,

Akbar,

Ahmad

et al. 2023

Sci Inquiry Rev.

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The current study attempts to review the literature concerning the synthesis, properties, and application of carbon nanotubes (CNTs). The methods used to produce carbon nanotubes include laser ablation, electric arc discharge, chemical vapor deposition, plasma-enhanced chemical vapor deposition, pulsed laser deposition, use of low-frequency ultrasound waves, heating a bulk polymer, and bulk sputtering. CNTs have excellent mechanical and thermal properties that strongly depend upon their structure. Functionalized magnetic CNTs are involved in magnetic force microscopy used in biomedicine. The liquid and plastic limit of kaolinite can be increased by adding CNTs to it. In the medical field, CNTs have numerous applications including gene delivery to cells, cancer therapy, drug delivery, and tissue regeneration. Their antioxidant nature also enables them to be used in cosmetic products and in the field of dermatology. They are also used to purify the environment, water, and in modern food-packaging technology. The sensors containing CNTs composite pellets are sensitive to gases, such as NH3, CO2, and CO H2O. CNTs are used to construct gas containers for hydrogen storage. They are also considered ideal for structural applications and their properties can be improved by making their composites with metals. Such metals may be introduced into the core of CNTs by different methods including solid-state reaction, arc-discharge method, and electrochemical techniques. The value of absorbed hydrogen gas in CNTs varies between 0.4 and 67 mass %. Recent advances encourage more research on CNTs to increase their clinical applications in the future.

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Surface Modified Carbon Nanotubes in Food Packaging

Cited by 4 publications

References 110 publications

Nanofillers in Novel Food Packaging Systems and Their Toxicity Issues

Nanofillers in Novel Food Packaging Systems and Their Toxicity Issues

Nanotechnology in food packaging materials: role and application of nanoparticles

Synthesis, Properties, and Applications of Carbon Nanotubes: An Overview

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