نتایج جستجو برای: colloidal stability

تعداد نتایج: 316106  

Journal: :Science 2000
Velev Lenhoff Kaler

Microstructured particles were synthesized by growing colloidal crystals in aqueous droplets suspended on fluorinated oil. The droplets template highly ordered and smooth particle assemblies, which diffract light and have remarkable structural stability. The method allows control of particle size and shape from spheres through ellipsoids to toroids by varying the droplet composition. Cocrystall...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2006
Stephen A Barr Erik Luijten

We investigate the effect of small concentrations of highly charged nanoparticles on the stability of uncharged colloidal microspheres using large-scale simulations. Employing pair potentials that accurately represent mixtures of silica microspheres and polystyrene nanoparticles as studied experimentally, we are able to demonstrate that nanoparticle-induced stabilization can arise from a relati...

2013
Ayat A Allam Md Ehsan Sadat Sarah J Potter David B Mast Dina F Mohamed Fawzia S Habib Giovanni M Pauletti

Magnetic nanoparticles that are currently explored for various biomedical applications exhibit a high propensity to minimize total surface energy through aggregation. This study introduces a unique, thermoresponsive nanocomposite design demonstrating substantial colloidal stability of superparamagnetic Fe3O4 nanoparticles (SPIONs) due to a surface-immobilized lipid layer. Lipid coating was acco...

2016
Darija Domazet Jurašin Marija Ćurlin Ivona Capjak Tea Crnković Marija Lovrić Michal Babič Daniel Horák Ivana Vinković Vrček Srećko Gajović

Silver (AgNPs) and maghemite, i.e., superparamagnetic iron oxide nanoparticles (SPIONs) are promising candidates for new medical applications, which implies the need for strict information regarding their physicochemical characteristics and behavior in a biological environment. The currently developed AgNPs and SPIONs encompass a myriad of sizes and surface coatings, which affect NPs properties...

Journal: :Inorganic chemistry frontiers 2022

A simple strategy is proposed to synthesize highly uniform garnet-based nanospheres that exhibit colloidal stability in physiological media, high biocompatibility and both green NIR persistent luminescence.

Journal: :The Journal of chemical physics 2009
Chi-cheng Chiu Preston B Moore Wataru Shinoda Steven O Nielsen

The physical properties of nanoscale materials often vary with their size, unlike the corresponding bulk material properties, which can only be changed by modifying the material composition. In particular, it is believed that hydration phenomena are length scale dependent. The manifestation of hydrophobicity over multiple length scales plays a crucial role in self-assembly processes such as pro...

Journal: :Nanoscale 2021

NMR reveals three types of dynamic ethylene glycol units on PEG-grafted SiO2 nanoparticles, the distribution which depends chain length and coverage affects colloidal stability protein uptake.

Journal: :The Journal of clinical investigation 1943
E A Kabat F M Hanger D H Moore H Landow

Precipitating agents of many varieties are employed to study the proteins of the blood in health and disease, giving rise to such reactions as the Takata-Ara, the Weltmann, the formol gel, and the albumin-globulin partitions by salting-out methods. More recently, the stability of certain colloidal suspensions in dilute serum has been used for a similar purpose. For example, it has been shown th...

Journal: :The journal of physical chemistry. B 2014
Jonathan Rubin Aditi Sharma Lars Linden Andreas S Bommarius Sven H Behrens

Monoclonal antibodies are the fastest growing class of biotherapeutics. Ensuring their colloidal and conformational stability in liquid dispersions is crucial for maintaining therapeutic efficacy and economic viability. Sugars are often added to increase the colloidal and thermal stability of protein; however, determining which sugar is the most stabilizing requires time and sample-consuming st...

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