Abstract Gravity affects colloidal dispersions via sedimentation and convection. We used dynamic light scattering (DLS) to quantify the mobility of nanoparticles on ground in microgravity. A DLS instrument was adapted withstand accelerations a drop tower, liquid handling set-up connected order stabilize temperature enable rapid cooling or heating. Light experiments were performed tower at ZARM ...

Silica nanoparticles (SiNPs) are a promising material for nanomedicine technology. SiNPs considered powerful tool drug delivery, functional coatings and films, biomolecule separation due to their stability, biocompatibility, accessible surface modification. Herein, the synthesis of nylon 6 (SiNPs-Nylon) coated nanocomposites was proposed. Transmission electron microscopy (TEM) dynamic light sca...

The dimensions and intermolecular interactions of surface-grafted and unbound, free polyampholytes, poly[3-(N-2methacryloyloxyethyl-N,N-dimethyl) ammonatopropanesulfonate] (PMAPS) and poly(2-methacryloyloxyethyl phosphorylcholine) (PMPC), were estimated in an aqueous NaCl solution over a wide range of salt concentrations (Cs). The free PMAPS and PMPC fractionated by a recycling preparative size...

BACKGROUND A simple method for the measurement of LDL particle sizes is needed in clinical laboratories because a predominance of small, dense LDL (sd LDL) has been associated with coronary heart disease. We applied dynamic light scattering (DLS) to measure lipoprotein particle sizes, with special reference to sd LDL. METHODS Human serum lipoproteins isolated by a combination of ultracentrifu...

Objectives: To green synthesize silver nanoparticles by using weed plant Tridax procumbens also prepare and check antimicrobial activity of impregnated bandages against one gram positive bacteria one-gram negative. Methods: The synthesis was done chemical precipitation method leaves extract as reducing agent. Synthesis are characterized UV-Visible spectroscopy, Dynamic light scattering (DLS), Z...

biodegradable nanoparticulate carriers, have important potential applications for administration of therapeutic molecules. chitosan based nanoparticles have attracted a lot of attention upon their biological properties such as biodegradability, biocom-patibility and bioadhesivity. the aim of the present investigation was to describe the synthesis and characterization of novel biodegradable nano...

The detection and quantification of micro(nano)plastics in the marine environment are essential requirements to understand full impacts plastic pollution on ecosystem human health. Here, static light scattering (SLS) dynamic (DLS) techniques assessed for their capacity detect colloidal particles with diameters between d = 0.1 0.8 µm at very low concentrations seawater. limit apparatus was deter...

Resistance to aspirin and its cytotoxicity significantly limits its therapeutic applications. Nano-liposomal encapsulation of aspirin can reduce its cytotoxicity. In this study, aspirin encapsulated nano-liposomes (AS-NL) was prepared and its performance in drug delivery and cytotoxicity was evaluated. The effects of two independent variables including: number of freeze/thawing cycles and conce...

Fe-doped titanite (TiCaSiO5) and quasi-titanite (Ti0.5CaSi1.5O5) compositions were synthesized by the ceramic method. For each structure, two samples with 0.1 mol% and 0.2 mol% Fe were used. The synthesized samples were homogenized using a planetary ball mill in 2-ethylhexyl stearate solvent and then printed on the ceramic with screen printing system....