This paper presents a method for the fabrication of integrated porous silica layers in microfluidic channel networks by microfabrication techniques. Porous silica is obtained by anodization of silicon, followed by full conversion of the porous silicon network into porous silica by means of thermal oxidation. A series of experiments were performed with various channel layouts to determine the cr...

We sought to develop dual-modality imaging probes using functionalized silica nanoparticles to target human epidermal growth factor receptor 2 (HER2)-overexpressing breast cancer cells and achieve efficient target imaging of HER2-expressing tumors. Polyamidoamine-based functionalized silica nanoparticles (PCSNs) for multimodal imaging were synthesized with near-infrared (NIR) fluorescence (indo...

The relationship between intracellular lysosomal rupture and cell death caused by silica was studied in P388d(1) macrophages. After 3 h of exposure to 150 mug silica in medium containing 1.8 mM Ca(2+), 60 percent of the cells were unable to exclude trypan blue. In the absence of extracellular Ca(2+), however, all of the cells remained viable. Phagocytosis of silica particles occurred to the sam...

Ginsenosides separated by silica gel TLC blotted to a polyvinylidene difluoride (PVDF) membrane was treated with a NaIO4 solution followed by bovine serum albumin (BSA), resulting in a ginsenoside-BSA conjugate on a PVDF membrane. The blotted bands were stained with anti-ginsenoside Rg1 and Rb1 monoclonal antibodies (MAbs). The newly established double staining with the Western blotting methods...

nowadays, growing interest in the application of nanotechnology in biomedical and biotechnological fields has opened a new avenue to explore the nanoparticles-biological system interaction. indeed, a clear gap is still in the cytotoxic effect of nps on the biological systems. for this purpose, the interaction of the silica oxide nanoparticles (sio2-np) with pc12 cell line, as a model of nervous...

This paper presents the results of obtaining a composite film based on polyimide track membranes filled with silica filler, although issue deposition this filler in pores given remained unexplored. The was obtained by hydrolysis tetraethoxysilane using an alkaline and acid catalyst. effect reaction catalyst precipitation products membrane. factors influencing formation silicon oxide nanofibers ...

Polyamide (PA) based thin-film composite (TFC) membranes experience a high degree of organic fouling due to their hydrophobic and rough membrane surfaces during forward osmosis (FO) process. In this study, an ultrathin silica layer was grown in situ on the PA surface enhance antifouling property TFC by silicification Surface characterization confirmed development surface. The superhydrophilic s...