نتایج جستجو برای: co surfactant

تعداد نتایج: 352697  

2016
Rendra P. Tofani Yeyet C. Sumirtapura Sasanti T. Darijanto

The long-term use of topical hydroquinone as an anti-hyperpigmentation treatment has well-known, unwanted effects. Deoxyarbutin (4-[(tetrahydro-2H-pyran-2-yl)oxy]phenol) is a relatively new tyrosinase inhibitor, with stronger inhibitory potency than hydroquinone, that exhibited decreased cytotoxicity against melanocytes and other cells. This study developed novel nanostructured lipid carriers (...

2001
Jeffrey A. Whitsett Gary Ross Timothy Weaver Ward Rice Carol Dion William Hull

Synthesis of glycoprotein A, the major surfactantassociated protein, was demonstrated in Type I1 epithelial cells isolated from rat lung. Predominant, secreted forms migrated as glycoproteins with asparagine-linked, complex-type oligosaccharides (32,00036,000 daltons, PI 4.2-4.8). Primary in vitro translation products of the glycoprotein migrated as five distinct proteins of approximately 26,00...

Journal: :Media Farmasi: Jurnal Ilmu Farmasi 2022

Red ginger extract is one of the new medicinal discoveries made from natural substances that has pharmacological benefits in treatment diabetes. Many gingerol components red can aid diabetes mellitus. However, administration not so effective, a delivery system such as SNEDDS (Self-Nano Emulsifying Drug Delivery System) must be developed. When compared to standard formulations, boost oral bioava...

2011
Cyrille Boyer

The synthesis of poly(VDF-co-TFMA) copolymers (where VDF and TFMA stand for vinylidene fluoride and α-trifluoromethacrylic acid, respectively) by iodine transfer polymerization without any surfactant is presented. First, the synthesis and the control of the copolymerization of VDF and TFMA were investigated in the presence of two chain transfer agents, 1-perfluorohexhyl iodide (C

Journal: :Chemical communications 2015
K Mandel M Straßer T Granath S Dembski G Sextl

A process is reported to obtain a nanoparticle sol from co-precipitated iron oxide particles without using any surfactant. The sol - a true ferrofluid - is not only stable over a wide range of pH but also in physiological solutions. This is a decisive step towards biomedical applications where nanoparticle agglomeration could so far only be prevented by using unwanted surfactants.

Journal: :Chemical communications 2011
Tianyang Li Guolei Xiang Jing Zhuang Xun Wang

Ceria and nickel-doped ceria necklace-like nanowires were synthesized by a facile, surfactant free method, through an unconventional assembly route. Homogeneous doping of lower-valent cations introduces elastic strain, resulting in extrinsic surface defects and higher catalytic performance in CO oxidization.

Journal: :Angewandte Chemie 2023

A modified seed-mediated approach using a chiral co-surfactant as capping ligand has been developed for the synthesis of intrinsically gold dog-bone-shaped nanoparticles. The shape anisotropy at edges was found to play crucial role in driving optical activity these nanostructures, reported by Jatish Kumar and co-workers their Research Article (e202300461). intense plasmonic chirality observed v...

Journal: :International Journal of Applied Pharmaceutics 2022

Objective: This study aimed to increase the effectiveness of using zeaxanthin by developed nanoemulsion containing which was then formulated into radiance serum for topical use.
 Methods: Nanoemulsions are made spontaneous nano emulsification methods/techniques, relatively simple technologically because they rely on right combination selected surfactants and co-surfactants. The optimizatio...

F. Khayat Sarkar Z. Khayat Sarkar

In this study, magnetic iron oxide nanoparticles (Fe3O4) with the size range of 20-30 nm were prepared by the modified controlled chemical co-precipitation method from the solution of ferrous/ferric mixed salt-solution in alkaline medium. In this process polyethylene glycol was used as a surfactant to prevent the solution from agglomeration. The prepared magnetic nanoparticles were characterize...

Roshanak Lotfi Saeid Abedini Khorrami Shahram Moradi

Titanium diboride is one of the candidate materials for high temperature applications and also for control rod elements in high temperature reactors. This paper presents the experimental data on the composites of B4 C-nano TiB2 that were synthesized successfully by co-precipitation methodat 1523K. Titanium tetraisopropanol, boron carbide, isopropanol and triton x-100were used as the precursor m...

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