The effect of ZnO nanoparticles as Ag-carrier in PBAT for antimicrobial films

Souza, Alana G.; Komatsu, Luiz Gustavo Hiroki; Barbosa, Rennan F. S.; Parra, Duclerc F.; Rosa, Derval dos Santos

doi:10.1007/s00289-021-03681-2

Cited by 15 publications

(19 citation statements)

References 55 publications

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“…It shows that the sample has a higher tendency of the crystal structure arrangement at the (022) plane [28]. The different synthesis procedures may change the tendency of the crystal arrangement [29,30].…”

Section: Xrd Resultsmentioning

confidence: 97%

A High Efficient Electrocatalytic Activity of Metal‐organic Frameworks ZnO/Ag/ZIF‐8 Nanocomposite for Electrochemical Detection of Toxic Heavy Metal Ions

et al. 2022

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A novel electrochemical sensor on ZIF-8 nanocomposites (Ag/ZnO/ZIF-8) was developed to analyze the mercury ions (Hg 2 + ). The ZIF-8 materials are one of the 3-dimensional porous metal-organic frameworks with highly accessible pores and great surface area. The ZIF-8 nanocomposites were prepared through simple sol-gel methods and their physio-chemical properties were characterized via different analytical analyses. As a result of cyclic voltammetry, Ag/ZnO/ZIF-8 exhibited a better electrocatalytic behavior towards the detection of mer-cury ions (Hg 2 + ). Furthermore, the composite modified electrode was then inspected as a sensor for DPV detection of mercury ions. The nanocomposite sensor performed a wide linear range from 0.5 μM to 140 μM with a low detection limit of 40 nM, and high sensitivity of 56.06 μA μM À 1 cm À 2 . Moreover, the ZIF-8 composite sensor showed a higher selectivity toward the detection of mercury ions (Hg 2 + ). The real-time applications of the ZIF-8 composites sensor were inspected in various samples with good sensitivity.

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Section: Xrd Resultsmentioning

confidence: 97%

A High Efficient Electrocatalytic Activity of Metal‐organic Frameworks ZnO/Ag/ZIF‐8 Nanocomposite for Electrochemical Detection of Toxic Heavy Metal Ions

et al. 2022

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“…54 The printing temperature employed here was slightly higher than the range indicated by DSC in the literature for neat PBAT. 31,55 Thus, we attributed the increase in thickness to decreased melt viscosity and higher flow rate. Also, cooling takes longer, and as a result, the deposited filament does not maintain its shape and undergoes a reduction in layer height at the same time as its layer width increases.…”

Section: Dimensional Changes Of the Printed Samplesmentioning

confidence: 89%

“…This unique event may be associated with the scission decomposition of the main polymer chain in regions of adipic acid and 1,4-butanediol. [29][30][31] T A B L E 2 Semiquantitative chemical analysis of peanut and soybean shell. The results indicate that the incorporation of peanut shell or soybean shell residues affected all thermal decomposition temperatures of pure PBAT, that is, these residues affected the thermal stability of PBAT.…”

Section: Thermogravimetric Analysismentioning

confidence: 99%

Development of biodegradable filaments based on agro‐industrial waste and evaluation of process parameters in final properties

da Silva Fortes,

de Abreu,

de Sousa Nascimento Junior

et al. 2023

Polymer Composites

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Additive manufacturing, which has become popular in recent years, is the process of joining materials through the deposition of layers to form parts based on data from a 3D model and fused deposition modeling. The search for biodegradable materials for the production of filaments for 3D printing is increasing and opening up possibilities for the development of new sustainable products, including the use of lignocellulosic waste in the formulation. Therefore, the present work aims to develop polymeric filaments based on polybutylene adipate terephthalate and low content (2.5 and 5 wt%) of peanut and soybean shells and evaluate their potential for 3D printing. The charges were characterized in terms of chemical composition. Tensile and dimensional variation tests were performed on samples manufactured from two different filling orientations: −45/45° and 0/90°. The printability of the filament was based on the manufacture of prototypes of agricultural tubes that were also characterized by thermogravimetry and their morphology through scanning electron and optical microscopy. Both natural residues significantly (p < 0.05) affected the sample dimensions and mechanical properties. However, the filling orientation difference was insignificant (p > 0.05). The filaments produced showed good processability, thermal and dimensional stability. The samples produced showed a satisfactory surface finish without exposing load agglomerates. These results demonstrate the feasibility of using lignocellulosic fillers, such as peanut and soybean shells, in additive manufacturing and indicate the possibility of producing parts with varied geometries.Highlights Use of lignocellulosic residues in biodegradable filaments. The filament produced with fillers of peanut and soybean shells showed good processability. Filament fracture depends on the raster angle. It was possible to produce tubes with good surface quality and mechanical properties.

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“…They also showed that these films were active against S. aureus and E. coli. De Souza and coauthors [73] used ZnO and Ag-ZnO nanoparticles as fillers and introduced them into the PBAT, which is an aliphatic-aromatic completely biodegradable flexible polyester, synthesized from 1,4-butanediol, adipic acid, and terephthalic acid. The authors established that such nano-biocomposite was active against E. coli.…”

Section: Biodegradable Active Packaging Materialsmentioning

confidence: 99%

Overview of Food Antimicrobial Packaging

Mizielińska¹,

Bartkowiak²

2023

Food Processing and Packaging Technologies - Recent Advances

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Acutely due to awareness that food products are highly vulnerable to microbial contamination, the food industry constantly tries to uncover new methods for the preservation of their products in order to guarantee their goods and processes continue to offer the highest quality and uphold safety standards throughout the production, storage, and distribution chain. Antimicrobial food packaging can play an important role in food shelf-life extension through the inhibition of microorganism growth present on the surface of food products. Antimicrobial packaging materials containing active substances incorporated into a polymer matrix or as surface coatings have begun to receive more attention for their use as antimicrobial control agents in food packaging systems. The most commonly used packaging materials are paper and plastics. However, from the ecological point of view, biopolymer-based materials have recently garnered more attention in the development of antimicrobial packaging as an alternative, due to their nontoxic biodegradability. In addition, the ongoing global spread of the pandemic caused by the SARS-CoV-2 has led to a preference for fresh food packaged in single-use food coverings. In order to address customer concerns and safeguard their health, the packaging industry could implement additional health safety measures, such as active packaging with antiviral properties.

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The effect of ZnO nanoparticles as Ag-carrier in PBAT for antimicrobial films

Cited by 15 publications

References 55 publications

A High Efficient Electrocatalytic Activity of Metal‐organic Frameworks ZnO/Ag/ZIF‐8 Nanocomposite for Electrochemical Detection of Toxic Heavy Metal Ions

A High Efficient Electrocatalytic Activity of Metal‐organic Frameworks ZnO/Ag/ZIF‐8 Nanocomposite for Electrochemical Detection of Toxic Heavy Metal Ions

Development of biodegradable filaments based on agro‐industrial waste and evaluation of process parameters in final properties

Overview of Food Antimicrobial Packaging

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