A silver nanoparticle solution was prepared in one step by mixing AgNO3 and a multi-amino compound (RSD-NH2) solution under ambient condition. RSD-NH2 was in-house synthesized by methacrylate and polyethylene polyamine in methanol, which has abundant amino and imino groups. However, the characterization of silver nanoparticles indicated that these nanoparticles are easy to agglomerate in soluti...

The effect of fixation with a simple solution of osmium tetroxide in distilled water was studied by electron microscopy. Exocrine cells of the pancreas and cells of the proximal tubule of the kidney of the mouse were used as test-objects. Partially prepolymerized methacrylate was used for embedding. There did not appear to be any marked disorganization of the cell inclusions. The appearance of ...

Fluorinated denture base acrylic resins can present more stable physical properties when compared with conventional polymers. This study evaluated the incorporation of a fluoroalkyl methacrylate (FMA) mixture in a denture base material and its effect on roughness and flexural strength. A swelling behavior assessment of acrylic resin specimens (n=3, per substance) after 12 h of FMA or methyl met...

The fine structure of the coronal cilia of the rotifer Philodina citrina has been studied in detail. Specimens were fixed with OsO(4) and embedded in butyl-methyl methacrylate, Epon 812, or Vestopal and sectioned with a Porter-Blum microtome. The details of structure of the rootlets, basal bodies, basal plates, and free cilia are described. The general structure of the rotifer ciliary apparatus...

PoIy(thioglycoloyloxyethyl methacrylate) gel has been prepared. The reactivity of its SH groups was checked with [C]phenyl isothiocyanate. Immobilization of thiol peptides and proteins to a carrier can be performed after its activation with 6,6'-dithiodinicotinic acid. The attached compounds can be released with 50 mmol dm dithiothreitol or can be hydrolyzed with enzymes or acids without decomp...

acrylamide gel. A highly active substance was isolated by ion-exchange chromatography on a 5 % cross-linked polymer ofacrylamide, NN'-methylenebisacrylamide and diethylaminoethyl methacrylate. 2. The initial gel-filtration experiments were carried out under a wide variety of conditions and resulted in the same yield of high-molecularweight and low-molecular-weight fractions with inotropic activ...

We report photoacid-induced nonerasable recording in tert-butoxycarbonyl-protected quinizarin methacrylate polymers for three-dimensional optical memory. 1m/s-speed recording was achieved using an 800 nm femtosecond laser at an 80MHzrepetition rate, without a postexposure bake after laser irradiation. Three-layer recording indicates that no optical damage during recording enables modulation of ...