Stable Surfactant-Free Toluene-Polyethylene-in-Water Emulsion Prepared by Ultrasonication at High Temperature

Sakai, Hideki; Kamogawa, Keiji; Sakai, Toshio; Umeda, Taeko; Matsumura, Atsutoshi; Sakai, Kenichi; Abe, Masahiko

doi:10.5650/jos.61.57

Cited by 6 publications

(3 citation statements)

References 25 publications

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“…The organic solvent was subsequently removed from the emulsion by azeotropic evaporation at 95 °C (azeotropic point toluene and water = 84.1 °C) . At this temperature, the PE/toluene nanodroplets form homogeneous liquids that remain emulsified in water . Previous works on the sol–gel transition of PE solutions suggest that the solidification of the nanodroplets involves the transition through the gel state. − Consequently, the droplets retain a spherical shape ( vide infra ) as the solvent evaporates, and they shrink and densify into solid, surfactant-stabilized NPs.…”

Section: Resultsmentioning

confidence: 99%

Preparation of Well-Defined Fluorescent Nanoplastic Particles by Confined Impinging Jet Mixing

Muff,

Balog,

Adamcik

et al. 2023

Environ. Sci. Technol.

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Research on the origin, distribution, detection, identification, and quantification of polymer nanoparticles (NPs) in the environment and their possible impact on animal and human health is surging. For different types of studies in this field, well-defined reference materials or mimics are needed. While isolated reports on the preparation of such materials are available, a simple and broadly applicable method that allows for the production of different NP types with well-defined, tailorable characteristics is still missing. Here, we demonstrate that a confined impinging jet mixing process can be used to prepare colloidally stable NPs based on polystyrene, polyethylene, polypropylene, and poly(ethylene terephthalate) with diameters below < 100 nm. Different fluorophores were incorporated into the NPs, to allow their detection in complex environments. To demonstrate their utility and detectability, fluorescent NPs were exposed to J774A.1 macrophages and visualized using laser scanning microscopy. Furthermore, we modified the NPs in a postfabrication process and changed their shape from spherical to heterogeneous geometries, in order to mimic environmentally relevant morphologies. The methodology used here should be readily applicable to other polymers and payloads and thus a broad range of NPs that enable studies of their behavior, uptake, translocation, and biological end points in different systems.

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Section: Resultsmentioning

confidence: 99%

Preparation of Well-Defined Fluorescent Nanoplastic Particles by Confined Impinging Jet Mixing

Muff,

Balog,

Adamcik

et al. 2023

Environ. Sci. Technol.

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“…Yet the formation of the surfactant-free solid lipid nanoparticle (SF-SLNs) and the nanoparticle of around 100 nm has not been achieved because of lack of available lipid materials being physiologically solid and at the same time being surface-active. Unfortunately, so far the reported surfactant-free lipid based delivery systems are mainly liquid-state nano/micro emulsion systems [17][18][19] . Unfortunately, so far the reported surfactant-free lipid based delivery systems are mainly liquid-state nano/micro emulsion systems [17][18][19] .…”

mentioning

confidence: 99%

“…Unfortunately, so far the reported surfactant-free lipid based delivery systems are mainly liquid-state nano/micro emulsion systems. [17][18][19] A major challenge to enable the production of SF-SLNs is to discover or develop biodegradable amphiphilic lipids that are solid at physiological temperature and have desirable compatibility to accommodate target drugs and appropriate surface-active properties to self-emulsify into a spherical structure and stabilize the particles, which are not commercially available at present. To develop novel lipid excipients with desirable properties for the preparation of SF-SLNs constitutes our initial motivation for this study.…”

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confidence: 99%

Synthetic ultra-long chain fatty acyl based amphiphilic lipids as a dual function excipient for the production of surfactant-free solid lipid nanoparticles (SF-SLNs): a physico-chemical study

Wei

Wang

et al. 2016

Green Chem.

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Two arrays of behenoyl (22:0) based amphiphilic lipids with sugar alcohols as a flexible linker were synthesized through acylation of sugar alcohol mono-behenates with diacetyl tartaric anhydride or acetoxy succinic anhydride; and some of the resulting products are capable to yield stable and uniform solid lipid nanoparticles (SLNs) (mean diameter ~100nm, PDI<0.2) without any additive surfactant, displaying excellent dual functions (as both solid lipid excipient and emulsifier). Graphic abstractTwo groups of behenoyl (22:0) based amphiphilic lipids with sugar alcohols as a flexible linker were synthesized; among which some resulting products are capable to produce stable and uniform solid lipid nanoparticles (SLNs) (mean diameter ~100nm, PDI<0.2) without any additive surfactant, demonstrating excellent dual functions (as both solid lipid excipient and emulsifier).

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Layer-by-layer printable nano-scale polypropylene for precise control of nanocomposite capacitor dielectric morphologies in metallised film capacitors

Greenbank

Ebel²

2023

Power Electronic Devices and Components

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Stable Surfactant-Free Toluene-Polyethylene-in-Water Emulsion Prepared by Ultrasonication at High Temperature

Cited by 6 publications

References 25 publications

Preparation of Well-Defined Fluorescent Nanoplastic Particles by Confined Impinging Jet Mixing

Preparation of Well-Defined Fluorescent Nanoplastic Particles by Confined Impinging Jet Mixing

Synthetic ultra-long chain fatty acyl based amphiphilic lipids as a dual function excipient for the production of surfactant-free solid lipid nanoparticles (SF-SLNs): a physico-chemical study

Layer-by-layer printable nano-scale polypropylene for precise control of nanocomposite capacitor dielectric morphologies in metallised film capacitors

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