Role of Intermolecular Forces on the Contact Angle of Vegetable Oil Droplets during the Cooling Process

Rizza, Muhammad Akhlis; Wijayanti, Widya; Hamidi, Nurkholis; Wardana, I.N.G.

doi:10.1155/2018/5283753

Cited by 16 publications

(8 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Coconut oil was mostly composed of lauric acid, accounting for 40% of its constituents, as reported by Rizza’s group [ 32 ]. Coconut oil showed the lowest measured contact angle at various cooling temperatures, compared to Jatropha curcas oil and sunflower oil, which are rich in oleic acid and linoleic acid, respectively.…”

Section: Resultsmentioning

confidence: 86%

“…Beeswax has fatty acid esters that give more polar properties compared to oleic acid, so that less lidocaine is solubilized [ 31 ]. Whereas, coconut oil is the most polar among other lipids used in this study due to its high lauric acid composition [ 32 ]. This limits its ability to dissolve lidocaine.…”

Section: Resultsmentioning

confidence: 99%

“…This reduced the viscosity and thus achieved a low contact angle. [ 32 ]. It was also observed that the higher the viscosity of the oil phase, the higher the droplet size, and the more the energy required to disrupt the oil droplets [ 19 , 43 ].…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Studies on the Effect of Oil and Surfactant on the Formation of Alginate-Based O/W Lidocaine Nanocarriers Using Nanoemulsion Template

2020

View full text Add to dashboard Cite

The application of various nanocarrier systems was widely explored in the field of pharmaceuticals to achieve better drug encapsulation and delivery. The aim of this study was to encapsulate lidocaine in alginate-based o/w nanocarriers based on the type of oil (i.e., solid or liquid), using a nanoemulsion template prepared by ultrasound-assisted phase inversion temperature (PIT) approach. The nanoemulsion template was initially prepared by dissolving lidocaine in the oil phase and surfactant and alginate in the aqueous phase, and keeping the PIT at around 85 °C, accompanied by gradual water dilution at 25 °C, to initiate the formation of nanoparticles (o/w) with the aid of low frequency ultrasound. The composition and concentration of the oil phase had a major impact on the particle size and led to an increase in the size of the droplet. The lipids that showed a higher drug solubility also showed higher particle size. On the other hand, increasing the concentration of surfactant decreases the size of the droplet before the concentration of the surfactant exceeds the limit, after which the size of the particle increases due to the aggregates that could be produced from the excess surfactant. The method used produced nanoemulsions that maintained nano-sized droplets < 50 nm, over long-term storage. Our findings are important for the design of nanocarrier systems for the encapsulation of lipophilic molecules.

show abstract

Section: Resultsmentioning

confidence: 86%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Studies on the Effect of Oil and Surfactant on the Formation of Alginate-Based O/W Lidocaine Nanocarriers Using Nanoemulsion Template

2020

View full text Add to dashboard Cite

show abstract

“…Furthermore, owing to its long chain length, oleic acid non-polar property makes it less able to penetrate the interfacial film and less solubilized in the aqueous phase, resulting in larger particles [ 36 , 37 ]. Bees wax and coconut oil, on the other hand, contains polar components such as fatty alcohols and lauric acid, respectively [ 38 , 39 ]. This would lead to a decrease in the interfacial tension resulting in a smaller particle size [ 26 ].…”

Section: Resultsmentioning

confidence: 99%

Fabrication of Alginate-Based O/W Nanoemulsions for Transdermal Drug Delivery of Lidocaine: Influence of the Oil Phase and Surfactant

et al. 2021

View full text Add to dashboard Cite

Transdermal drug delivery of lidocaine is a good choice for local anesthetic delivery. Microemulsions have shown great effectiveness for the transdermal transport of lidocaine. Oil-in-water nanoemulsions are particularly suitable for encapsulation of lipophilic molecules because of their ability to form stable and transparent delivery systems with good skin permeation. However, fabrication of nanoemulsions containing lidocaine to provide an extended local anesthetic effect is challenging. Hence, the aim of this study was to address this issue by employing alginate-based o/w nanocarriers using nanoemulsion template that is prepared by combined approaches of ultrasound and phase inversion temperature (PIT). In this study, the influence of system composition such as oil type, oil and surfactant concentration on the particle size, in vitro release and skin permeation of lidocaine nanoemulsions was investigated. Structural characterization of lidocaine nanoemulsions as a function of water dilution was done using DSC. Nanoemulsions with small droplet diameters (d < 150 nm) were obtained as demonstrated by dynamic light scattering (DLS) and cryo-TEM. These nanoemulsions were also able to release 90% of their content within 24-h through PDMS and pig skin and able to the drug release over a 48-h. This extended-release profile is highly favorable in transdermal drug delivery and shows the great potential of this nanoemulsion as delivery system.

show abstract

“…Therefore, adhesion behavior between the materials is poor so their interlaminar shear strength is decreased. [27][28][29][30] Figure 9 represents the relationship between contact angle and wetting property.…”

Section: Interlaminar Shear Strength Of Cf/abs Specimenmentioning

confidence: 99%

Effect of process variables on adhesion of acrylonitrile butadiene styrene and carbon fiber reinforced acrylonitrile butadiene styrene materials printed using additive manufacturing

Vigneshwaran¹,

Venkateshwaran²,

Naresh

2022

Journal of Reinforced Plastics and Composites

View full text Add to dashboard Cite

Additive manufacturing has the capacity to manufacture functional parts with complicated geometries, fused filament fabrication is a viable additive manufacturing method and an alternative to standard processes for the creation of polymer and fiber-reinforced polymer composites. The influence of process parameters such as layer thickness, infill density, and infill pattern on the interlaminar bonding performance of three-dimensional printed composites was examined in this study. Due to the existence of high porosity and inadequate layer to layer bond, interlaminar shear strength values increase as layer height increases from 0.15 mm to 0.2 mm and decrease by 0.3 mm. The specimens were also subjected to a wettability test to determine the printed material’s adhesive behavior. Scanning electron microscope was used to perform fractography analysis, and fractured specimens were seen. The test findings revealed that carbon fiber reinforced ABS specimens have good interlaminar shear strength and layer adhesive. When comparing carbon fiber reinforced ABS specimens to ABS specimens, the test results demonstrated that interlaminar shear strength and good adhesion between the layers are attained in carbon fiber reinforced ABS specimens.

show abstract

Role of Intermolecular Forces on the Contact Angle of Vegetable Oil Droplets during the Cooling Process

Cited by 16 publications

References 17 publications

Studies on the Effect of Oil and Surfactant on the Formation of Alginate-Based O/W Lidocaine Nanocarriers Using Nanoemulsion Template

Studies on the Effect of Oil and Surfactant on the Formation of Alginate-Based O/W Lidocaine Nanocarriers Using Nanoemulsion Template

Fabrication of Alginate-Based O/W Nanoemulsions for Transdermal Drug Delivery of Lidocaine: Influence of the Oil Phase and Surfactant

Effect of process variables on adhesion of acrylonitrile butadiene styrene and carbon fiber reinforced acrylonitrile butadiene styrene materials printed using additive manufacturing

Contact Info

Product

Resources

About