Effect of LAPONITE® addition on the mechanical, barrier and surface properties of novel biodegradable kafirin nanocomposite films

Olivera, Nathalia; Rouf, Tahrima B.; Bonilla, Jose C.; Carriazo, José G.; Dianda, Nathania; Kokini, Jozef L.

doi:10.1016/j.jfoodeng.2018.10.002

Cited by 37 publications

(21 citation statements)

References 32 publications

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“…The scaffolds' chemical structures were also studied through FTIR spectroscopy. The FTIR spectrum of the PCL@CMC/LAP3.5% scaffolds displayed the different characteristic peaks of CMC (1607 and 3440 cm −1 ) 5,18 and LAP nanoplatelets (668, 1001 and 3440 cm −1 ), 19 compared to the spectrum of the PCL scaffold (Figure 2), which confirmed the successfulness of the immobilization process.…”

Section: Resultsmentioning

confidence: 60%

Immobilization of carboxymethyl chitosan/laponite on polycaprolactone nanofibers as osteoinductive bone scaffolds

Arab‐Ahmadi

Irani

Bakhshi

et al. 2020

Polymers for Advanced Techs

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The side effects and high cost of growth factors and drugs in bone tissue engineering have led to outstanding investigations of alternative osteoinductive supplements. Herein, the electrospun polycaprolactone (PCL) nanofibers were immobilized with carboxymethyl chitosan (CMC) and laponite nanoplatelets (LAP, 0.5‐3.5 wt%) to fabricate osteoinductive scaffolds for bone tissue engineering. The Fourier‐transform infrared)FTIR(and energy dispersive X‐ray (EDX) spectroscopy confirmed the chemical immobilization of CMC and LAP on the surface of PCL nanofibers. Water contact angle measurements exhibited significant improvement of surface hydrophilicity for immobilized scaffolds (<10°) comparing to the virgin PCL nanofibers (125°). The immobilization of CMC and LAP enhanced the attachment, proliferation, and osteodifferentiation of the seeded human bone marrow mesenchymal stem cells (hBM‐MSCs), as evidenced by increased calcium deposition, alkaline phosphatase (ALP) activity, and Osteonectin gene expression. Therefore, the fabricated scaffolds can serve as an appropriate substrate to support the proliferation and differentiation of stem cells to osteoplasts without any external osteoinductive stimulation.

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Section: Resultsmentioning

confidence: 60%

Immobilization of carboxymethyl chitosan/laponite on polycaprolactone nanofibers as osteoinductive bone scaffolds

Arab‐Ahmadi

Irani

Bakhshi

et al. 2020

Polymers for Advanced Techs

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“…The same phenomenon of increased water absorption was observed in the chitosan/starch films with halloysite nanotubes, which was attributed to the increased porosity and hydrophilicity of the nanocomposite films [60]. The addition of hydrophilic clay into kafirin films also affected the hydrophilicity of the film due to the presence of Si-OH groups [61].…”

Section: Resultsmentioning

confidence: 83%

Active Edible Films Based on Arrowroot Starch with Microparticles of Blackberry Pulp Obtained by Freeze-Drying for Food Packaging

et al. 2019

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This research work evaluated the influence of the type of incorporation and variation in the concentration of blackberry pulp (BL) and microencapsulated blackberry pulp (ML) powders by freeze-drying on the chemical and physical properties of arrowroot starch films. Blackberry powders were added to the film-forming suspension in different concentrations, 0%, 20%, 30% and 40% (mass/mass of dry starch) and through two different techniques, directly (D) and by sprinkling (S). Scanning electron microscopy (SEM) images revealed that the incorporation of blackberry powder has rendered the surface of the film rough and irregular. Films incorporated with BL and ML powders showed an increase in thickness and water solubility and a decrease in tensile strength in comparison with the film containing 0% powder. The incorporation of blackberry BL and ML powders into films transferred colour, anthocyanins and antioxidant capacity to the resulting films. Films added with blackberry powder by sprinkling were more soluble in water and presented higher antioxidant capacity than films incorporated directly, suggesting great potential as a vehicle for releasing bioactive compounds into food.

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“…However, the addition of another type of nanoclay, laponite—synthetic hectorite-like clay—to kafirin film, does not significantly affect the WVP of the tested films. The hydrophilic clay, due to the presence of Si-OH groups, can affect the hydrophilicity of the surface [157]. The same trend was observed in collagen films with laponite [158].…”

Section: Effects Of Nanofillers On the Functional Properties Of Bimentioning

confidence: 93%

The Effect of Nanofillers on the Functional Properties of Biopolymer-Based Films: A Review

2019

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Waste from non-degradable plastics is becoming an increasingly serious problem. Therefore, more and more research focuses on the development of materials with biodegradable properties. Bio-polymers are excellent raw materials for the production of such materials. Bio-based biopolymer films reinforced with nanostructures have become an interesting area of research. Nanocomposite films are a group of materials that mainly consist of bio-based natural (e.g., chitosan, starch) and synthetic (e.g., poly(lactic acid)) polymers and nanofillers (clay, organic, inorganic, or carbon nanostructures), with different properties. The interaction between environmentally friendly biopolymers and nanofillers leads to the improved functionality of nanocomposite materials. Depending on the properties of nanofillers, new or improved properties of nanocomposites can be obtained such as: barrier properties, improved mechanical strength, antimicrobial, and antioxidant properties or thermal stability. This review compiles information about biopolymers used as the matrix for the films with nanofillers as the active agents. Particular emphasis has been placed on the influence of nanofillers on functional properties of biopolymer films and their possible use within the food industry and food packaging systems. The possible applications of those nanocomposite films within other industries (medicine, drug and chemical industry, tissue engineering) is also briefly summarized.

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Effect of LAPONITE® addition on the mechanical, barrier and surface properties of novel biodegradable kafirin nanocomposite films

Cited by 37 publications

References 32 publications

Immobilization of carboxymethyl chitosan/laponite on polycaprolactone nanofibers as osteoinductive bone scaffolds

Immobilization of carboxymethyl chitosan/laponite on polycaprolactone nanofibers as osteoinductive bone scaffolds

Active Edible Films Based on Arrowroot Starch with Microparticles of Blackberry Pulp Obtained by Freeze-Drying for Food Packaging

The Effect of Nanofillers on the Functional Properties of Biopolymer-Based Films: A Review

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