نتایج جستجو برای: emulsion solvent diffusion

تعداد نتایج: 226762  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2011
Cindy E J Dieteren Stan C A M Gielen Leo G J Nijtmans Jan A M Smeitink Herman G Swarts Roland Brock Peter H G M Willems Werner J H Koopman

Intracellular chemical reactions generally constitute reaction-diffusion systems located inside nanostructured compartments like the cytosol, nucleus, endoplasmic reticulum, Golgi, and mitochondrion. Understanding the properties of such systems requires quantitative information about solute diffusion. Here we present a novel approach that allows determination of the solvent-dependent solute dif...

Journal: :Pharmaceutics and pharmacology research 2022

Paints are used to protect and prolong the life of natural synthetic materials as it acts a barrier against environmental conditions. contain extenders, solvents, pigments, binders, some additives. The objective is improve physical properties current matt paint formulation. contents acrylic white emulsion known be 25%Pigments, 12% Extender 5% Additives, 44% Solvents, 14% Binders. [2]. Binders m...

Journal: :Nature electronics 2023

Three-dimensional printing could be used to create complex and multifunctional soft electronic devices. However, solid-state elastic conductors with three-dimensional geometries is challenging because the rheological properties of existing inks typically only allow for layer-wise deposition. Here we show that an emulsion system—consisting a conductive elastomer composite, immiscible solvent emu...

2015
Yong Ren Yaping Zhang

A numerical model has been developed to investigate the thermally triggered release kinetics for drug delivery using phase change material as shell of microcapsules. Biocompatible material n-Eicosane is used as demonstration. PCM shell of microcapsule will remain in solid form after the drug is taken, so the drug will be encapsulated by the shell, and will not be released until the target body ...

2012
Sri Handayani

In this study, the synthesis of fatty acid – carbohydrate esters used glucose (G) and coconut oil fatty acid (FA). The esterification reaction was carried out enzymatically using Candida rugosalipase in organic solvent (n-hexane). Lipase was immobilized on Ca-alginate gel beads withthe optimum condition for immobilization was1 % of Na-alginate, resulting 61.66% immobilization yield. The optimum...

2008
Samo Lasič Ingrid Åslund Daniel Topgaard

We present a modulated gradient spin-echo method (MGSE), which uses a train of sinusoidally shaped gradient pulses separated by 180-degree RF pulses. The RF pulses efficiently refocus chemical shifts and de-phasing due to susceptibility differences, resulting in undistorted, high-resolution diffusion weighted spectra. This allows for simultaneous spectral characterization of diffusion of severa...

2014

Non-aqueous system are well known as solvent or drug suspension vehicles and oleogels micro emulsion with no aqueous phase (anhydrous, non-aqueous oil-in-oil emulsion) have had relatively scant attention yet may have uses as drug reservoir as well as template for the preparation of microemulsion combination with a cosurfactant. Microemulsions have emerged as novel vehicles for drug delivery whi...

Journal: :Asian Journal of Pharmaceutical and Clinical Research 2023

Objective: The envisaged research work aims to develop a nanosponge loaded gel for the treatment of Streptococcal gangrene. Methods: In present study, permeability is enhanced by targeted drug release formulation topical clindamycin phosphate nanosponges were prepared emulsion solvent diffusion method using ethyl cellulose as retardant polymer and PVA surfactant or emulsifier. Nanosponges chang...

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