Non-aqueous olive oil-in-glycerin (o/o) Pickering emulsions: Preparation, characterization and <i>in vitro</i> aspirin release

Dyab, Amro K. F.; Mohamed, Lamiaa A.; Taha, Fouad

doi:10.1080/01932691.2017.1406368

Cited by 18 publications

(7 citation statements)

References 43 publications

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“…These materials include but not limited to liquid crystals 21–23 and lecithin 24 ; synthesized graphene oxide-polystyrene 25 ; glycerol to produce polyols-in-oil-in-water 26 ; natural glycyrrhizic nanofibrils assembling into a fibrillary hydrogel network to produce gelled MEs 20 ; bioactive materials dispersed in glycerol with the components of glycerol and organogel matrix of sitosterol-oryzanol in sunflower oil gels to produce oleogel capsules 27 ; graphene micro-aerogels embedded within soft MEs for electrochemical sensing 28 ; mix of oil, toluene, water and microparticles of poly benzyl methacrylate to produce porous polystyrene monoliths MEs 29 ; short-chain fatty acid within dietary fibers MEs 30 ; bacterial celluloses encapsulated within protein and polyglycerol polyricinoleate MEs 31 ; and eucalyptus oil, ubiquinone and fine water interfacing with hydroxy methyl cellulose and tannic acid to produce soft microcapsules of MEs 32 . Also, several emulsifiers 33 , silica nanoparticles 34–37 , colloidal materials 8,38,39 , pH stimuli-responsive polymers 40,41 , biomacromolecules 42 , surfactants 43,44 and physical parameters 45,46 have been incorporated to improve the MEs stability and performance 8,39,47–49 .…”

Section: Introductionmentioning

confidence: 99%

Rapid and Highly Controlled Generation of Monodisperse Multiple Emulsions via a One-Step Hybrid Microfluidic Device

Azarmanesh

Bawazeer

Mohamad

et al. 2019

Sci Rep

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Multiple Emulsions (MEs) contain a drop laden with many micro-droplets. A single-step microfluidic-based synthesis process of MEs is presented to provide a rapid and controlled generation of monodisperse MEs. The design relies on the interaction of three immiscible fluids with each other in subsequent droplet formation steps to generate monodisperse ME constructs. The design is within a microchannel consists of two compartments of cross-junction and T-junction. The high shear stress at the cross-junction creates a stagnation point that splits the first immiscible phase to four jet streams each of which are sprayed to micrometer droplets surrounded by the second phase. The resulted structure is then supported by the third phase at the T-junction to generate and transport MEs. The ME formation within microfluidics is numerically simulated and the effects of several key parameters on properties of MEs are investigated. The dimensionless modeling of ME formation enables to change only one parameter at the time and analyze the sensitivity of the system to each parameter. The results demonstrate the capability of highly controlled and high-throughput MEs formation in a one-step synthesis process. The consecutive MEs are monodisperse in size which open avenues for the generation of controlled MEs for different applications.

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Section: Introductionmentioning

confidence: 99%

Rapid and Highly Controlled Generation of Monodisperse Multiple Emulsions via a One-Step Hybrid Microfluidic Device

Azarmanesh

Bawazeer

Mohamad

et al. 2019

Sci Rep

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“…The structure of (acetonide) 8 -G 4 -EMP was confirmed using NMR spectroscopy and mass spectrometry (MS). The corresponding 1 H NMR and 13 C NMR spectra as well as the mass spectrum of (acetonide) 8 -G 4 -EMP are displayed in Figures S9 and S10 (Supporting information S1).…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

“…Nonaqueous Pickering emulsions, also termed as Pickering nonaqueous emulsions, refer to a system in which the water of Pickering emulsions is replaced by either a polar nonaqueous solvent, or a liquid polymer, or another oil . Several kinds of nonaqueous Pickering emulsions have been explored, including oil–oil and oil–ionic liquid (IL) systems, which are stabilized by fumed silica particles, , modified clay nanoparticles, , functionalized GO nanosheets, − polymeric microgels, diblock copolymeric worms, and so on. After the replacement of water by oil with a low dielectric constant, it was worth noting that the interfacial properties of two nonaqueous liquids, especially for oil–oil systems, were distinctly different from those of water–oil interfaces.…”

Section: Introductionmentioning

confidence: 99%

Janus-Like Single-Chain Polymer Nanoparticles as Two-in-One Emulsifiers for Aqueous and Nonaqueous Pickering Emulsions

Gao

2020

Langmuir

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The exploration of Pickering emulsions is very significant owing to their versatile and important applications in many scopes. In this study, synthesis of a novel kind of single-chain polymer nanoparticle (SCPN) and its stabilized Pickering emulsions were demonstrated. To this end, linear-dendritic diblock copolymers consisting of poly((2-dimethylamino) ethyl methacrylate) (PDMAEMA) blocks and four-generation dendritic aliphatic polyester blocks (G4) have been first synthesized by the combination of click chemistry and reversible addition-fragmentation chain transfer (RAFT) polymerization reaction. The subsequent intramolecular cross-linking of the PDMAEMA block of PDMAEMA-b-G4 copolymers in DMF using 1,4-diiodobutane as cross-linkers afforded Janus-like SCPNs that exhibited a cross-linked PDMAEMA head tethered by a short dendritic tail. The molecular weight and distribution together with the structure of polymers were carefully characterized by GPC and NMR spectroscopy. By the employment of the as-synthesized Janus-like SCPNs as Pickering emulsifiers, aqueous and nonaqueous Pickering emulsions including water-in-oil and oil-in-oil as well as ionic liquid-in-oil were generated. Under the same conditions, it was found that the long-term stabilities of Pickering emulsions stabilized by Janus-like SCPNs were superior to those of Pickering emulsions stabilized by their linear quaternized PDMAEMA-b-G4 by CH3I analogous.

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“…Nanomaterials have unique and tunable physical and chemical properties, which can interact with biological matter with exquisite control and precision [168]. Nanoparticles can be used as a carrier system to deliver the genetic materials, such as plasmid DNA, RNA, and oligonucleotides into cells efficiently and rapidly, which reduce the drawbacks and limitations associated with current Agrobacterium -mediated transgene delivery systems [167,168,169]. A few successful examples show promise for nanoparticle-mediated passive delivery to plants in vitro [170,171,172] and in vivo [173,174], indicating the potential for passive nanoparticle-mediated delivery with a high efficiency and low toxicity.…”

Section: Conclusion and Future Perspectivesmentioning

confidence: 99%

Citrus Genetic Engineering for Disease Resistance: Past, Present and Future

Sun

Nasrullah

et al. 2019

IJMS

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Worldwide, citrus is one of the most important fruit crops and is grown in more than 130 countries, predominantly in tropical and subtropical areas. The healthy progress of the citrus industry has been seriously affected by biotic and abiotic stresses. Several diseases, such as canker and huanglongbing, etc., rigorously affect citrus plant growth, fruit quality, and yield. Genetic engineering technologies, such as genetic transformation and genome editing, represent successful and attractive approaches for developing disease-resistant crops. These genetic engineering technologies have been widely used to develop citrus disease-resistant varieties against canker, huanglongbing, and many other fungal and viral diseases. Recently, clustered regularly interspaced short palindromic repeats (CRISPR)-based systems have made genome editing an indispensable genetic manipulation tool that has been applied to many crops, including citrus. The improved CRISPR systems, such as CRISPR/CRISPR-associated protein (Cas)9 and CRISPR/Cpf1 systems, can provide a promising new corridor for generating citrus varieties that are resistant to different pathogens. The advances in biotechnological tools and the complete genome sequence of several citrus species will undoubtedly improve the breeding for citrus disease resistance with a much greater degree of precision. Here, we attempt to summarize the recent successful progress that has been achieved in the effective application of genetic engineering and genome editing technologies to obtain citrus disease-resistant (bacterial, fungal, and virus) crops. Furthermore, we also discuss the opportunities and challenges of genetic engineering and genome editing technologies for citrus disease resistance.

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Non-aqueous olive oil-in-glycerin (o/o) Pickering emulsions: Preparation, characterization and in vitro aspirin release

Cited by 18 publications

References 43 publications

Rapid and Highly Controlled Generation of Monodisperse Multiple Emulsions via a One-Step Hybrid Microfluidic Device

Rapid and Highly Controlled Generation of Monodisperse Multiple Emulsions via a One-Step Hybrid Microfluidic Device

Janus-Like Single-Chain Polymer Nanoparticles as Two-in-One Emulsifiers for Aqueous and Nonaqueous Pickering Emulsions

Citrus Genetic Engineering for Disease Resistance: Past, Present and Future

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