نتایج جستجو برای: oil in water nano emulsions

تعداد نتایج: 17138324  

2011
Xiantao Shen Lei Ye

A new interfacial nano and molecular imprinting approach is developed to prepare spherical molecularly imprinted polymers with well-controlled hierarchical structures. This method is based on Pickering emulsion polymerization using template-modified colloidal particles. The interfacial imprinting is carried out in particle-stabilized oil-in-water emulsions, where the molecular template is prese...

2005
Dimitris Argyropoulos Dimitris S. Argyropoulos Orlando Jose Rojas

BODY: The properties of lignins as emulsification agents in systems composed of water and oil are presented. Laboratory and industrial Kraft lignins were characterized in terms of surface activity and phase behavior in equilibrated Lignin−Oil−Water systems. Lignin−based emulsions were obtained for oil fractions of different Equivalent Alkane Carbon Number. The properties of emulsions obtained a...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2009
Min Shen Daniel E Resasco

Emulsions have been stabilized by carbon nanotube-silica nanohybrids. The as-prepared nanotube-silica particles generate water-in-oil (w/o) emulsions, regardless of the water/oil volume ratio used. The emulsion volume fraction was much higher than that obtained with nanotubes only, and it was found to increase with water/oil ratio due to an increasing amount of water retained in the emulsion dr...

Journal: :Chemical communications 2010
Jianan Zhang Xuewu Ge Mozhen Wang Jianjun Yang Qingyun Wu Mingyuan Wu Nannan Liu Zhilai Jin

Hybrid hollow microspheres are fabricated successfully from double emulsions stabilized by single-component amphiphilic silica nanoparticles, which were formed and partially modified in situ at the interface of water-in-oil emulsions.

Journal: :J. Chem. Soc., Trans. 1918

2017
Alba Adriana Vallejo-Cardona Rafael Martínez-Palou Benjamín Chávez-Gómez Graciela García-Caloca Jairo Guerra-Camacho Ricardo Cerón-Camacho Jesús Reyes-Ávila James Robert Karamath Jorge Aburto

The present feature describes for the first time the application of spores from Aspergillus sp. IMPMS7 to break out crude oil-in-water emulsions (O/W). The fungal spores were isolated from marine sediments polluted with petroleum hydrocarbons. The spores exhibited the ability to destabilize different O/W emulsions prepared with medium, heavy or extra-heavy Mexican crude oils with specific gravi...

2017
Yining Lv Yintang Guan Shudi Guo Qinglan Ma Jing Gong Guangjin Chen Changyu Sun Kai Guo Lanying Yang Bohui Shi Wei Qin Yubo Qiao

Hydrate plugging is the major challenge in the flow assurance of deep-sea pipelines. For water-in-oil emulsions, this risk could be significantly reduced with the addition of anti-agglomerants (AAs). Hydrates often form from water-in-oil emulsions and the measurement of emulsion and slurry viscosity constitutes the basis for the application of hydrate slurry flow technology. In this work, using...

2013
Soheila Honary Pouneh Ebrahimi Mahshid Nikbakht

Purpose: To study the effect of some factors on the size of finasteride nano-emulsion by chemometric approach which could predict the size of nano-emulsion droplets under different conditions. Methods: Nano-emulsions were prepared using spontaneous emulsification method which occurs when organic and aqueous phases are mixed. The organic phase was a homogeneous solution of oil (finasteride as a ...

2012
Liang-Zhong Lv Chen-Qi Tong Qing Lv Xin-Jiang Tang Li-Ming Li Qing-Xia Fang Jia Yu Min Han Jian-Qing Gao

Hydroxysafflor yellow A (HSYA), the main active ingredient of the safflower plant (Carthamus tinctorius L.), is a hydrophilic drug with low oral bioavailability. Water-in-oil-in-water (w/o/w) double emulsions may enhance the oral absorption of HSYA. In this study, we prepared a self-double-emulsifying drug delivery system (SDEDDS) to improve the absorption of HSYA. SDEDDS consists of water in o...

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