Spectrometric study on the hydrophobic hydration in the formation of Tween-60 micelles with curcumin

Zheng, Yi; Bao, Zhoujie; Fan, Yaxun; Wang, Xiaoyong

doi:10.1016/j.molliq.2022.121065

Cited by 6 publications

(3 citation statements)

References 44 publications

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“…The influence of functional groups, on the thermal conductivity of CNT nanofluids, was revealed by analyzing the effect of pristine CNT thermal conductivity, hydrogen-bond formation, mean-square displacement of water molecules and interlayer thermal resistance at CNT/water interface. Such lowering was documented in literature [70]. In practice, both fluid stability and thermal conductivity enhancements are needed.…”

Section: Dispersion Qualitymentioning

confidence: 83%

“…Most relations described above considered the effect of nanoparticle concentration on the fluid thermal conductivity. In addition to conductive networks, the Brownian motion and percolation paths increase with higher CNT concentration [2,[68][69][70] It should be noticed that the addition of CNTs typically has little effect on the boiling point of water [71]. However, they affect the water freezing point by hindering the formation of ice crystals, resulting in freezing point lowering "depression".…”

Section: Cnt Concentrationmentioning

confidence: 99%

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Why Carbon Nanotubes Improve Aqueous Nanofluid Thermal Conductivity: A Qualitative Model

Khoswan,

Nassar,

Assali

et al. 2024

Preprint

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Media thermal conductivity is important in various heat-transfer processes. Many conventional fluid conductors suffered low conductivity and environmental issues. Therefore, researchers developed efficient aqueous nanofluid conductors. Carbon nanotubes (CNTs) are widely studied to reach efficient, stable, low-cost and environmentally-friendly aqueous-nanofluids. This review provides a clear understanding of how CNTs improve thermal conductivity of aqueous nanofluids. A qualitative model is presented to explain literature mechanisms behind improvement. CNT type effects are discussed with other factors such as aspect ratio, Reynold number, dispersion quality, composition, temperature and additives. CNT functionalization is described. Relations to estimate nanofluid thermal conductivity are discussed. The model will help specialists to tailor CNT aqueous nanofluids as desired.

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Section: Dispersion Qualitymentioning

confidence: 83%

Section: Cnt Concentrationmentioning

confidence: 99%

Why Carbon Nanotubes Improve Aqueous Nanofluid Thermal Conductivity: A Qualitative Model

Khoswan,

Nassar,

Assali

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…Recently, fluorescence polarization analysis has emerged as an approved technique for assessing molecular mobility within nanoscale colloids [35,40,45,46]. Nevertheless, there have been no detailed studies on the molecular mobility of Cc oil-NEs influenced by HLB t to the best of our knowledge.…”

Section: Effect Of Hlb T On the Intra-ne Molecular Mobilitymentioning

confidence: 99%

Formulation and Characteristics of Edible Oil Nanoemulsions Modified with Polymeric Surfactant for Encapsulating Curcumin

Chiang

Chou

2023

Polymers

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Curcumin (Cur) is a beneficial phytochemical with numerous health advantages. However, its limited solubility in oil and poor stability hinder its potential for biomedical applications. In this study, we employed a mixture of food-grade Tween 60, a polymeric surfactant, and Span 60 to adjust the hydrophilic lipophilic balance number (HLBt) and prepared nanoemulsions (NEs) of coconut oil (Cc oil) as carriers for Cur. The effects of HLBt values, surfactant-to-oil ratio, and oil ratio on the physicochemical characteristics of the food-grade oil-NEs were investigated using dynamic light scattering, transmission electron microscopy, differential scanning calorimetry, fluorescence polarization spectroscopy, and viscometry. Increasing the addition ratio of Tween 60 in the NEs, thereby increasing the HLBt, resulted in a reduction in NE size and an improvement in their storage stability. The temperature and size of the phase transition region of the NEs decreased with increasing HLBt. NEs with higher HLBt exhibited a disordering effect on the intra-NE molecular packing of Cc oil. NEs with high HLBt displayed low viscosity and demonstrated nearly Newtonian fluid behavior, while those with lower HLBt exhibited pseudoplastic fluid behavior. Cur was effectively encapsulated into the Cc oil-NEs, with higher encapsulation efficiency observed in NEs with higher HLBt values. Furthermore, the Cur remaining activity was significantly enhanced through encapsulation within stable NEs. The biocompatibility of the Cc oil-NEs was also demonstrated in vitro. In summary, this study highlights the preparation of stable NEs of Cc oil by adjusting the HLBt using Tween 60, facilitating effective encapsulation of Cur. These findings provide valuable insights for the development of Cur carriers with improved solubility, stability, and bioavailability.

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Construction of quaternary ammonium chitosan-coated protein nanoparticles as novel delivery system for curcumin: Characterization, stability, antioxidant activity and bio-accessibility

Liu,

Zhang,

Jia

et al. 2024

Food Chemistry

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Spectrometric study on the hydrophobic hydration in the formation of Tween-60 micelles with curcumin

Cited by 6 publications

References 44 publications

Why Carbon Nanotubes Improve Aqueous Nanofluid Thermal Conductivity: A Qualitative Model

Why Carbon Nanotubes Improve Aqueous Nanofluid Thermal Conductivity: A Qualitative Model

Formulation and Characteristics of Edible Oil Nanoemulsions Modified with Polymeric Surfactant for Encapsulating Curcumin

Construction of quaternary ammonium chitosan-coated protein nanoparticles as novel delivery system for curcumin: Characterization, stability, antioxidant activity and bio-accessibility

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