Changes in contractility and the levels of adenosine 3':5'-cyclic monophosphoric acid (cAMP) were assessed in isolated cat cardiac muscle in response to soluble isoproterenol and isoproterenol immobilized on glass beads. Drug-induced positive inotropic responses were compared to the maximum isometric force achieved with paired electrical stimulation, a potent physiological inotropic stimulus. I...

The prevalence of colloid deposition at grain-to-grain contacts in two porous media (spherical glass beads and angular quartz sand, 710-850 microm) was examined using X-ray microtomography (XMT) under conditions where the colloid-grain surface interaction was solely attractive (lacking an energy barrier to deposition), and under fluid velocity conditions representative of engineered filtration ...

BACKGROUND & OBJECTIVE Although the measurement of oxalate in urine and serum by Amaranthus leaf oxalate oxidase immobilized on free arylamine glass beads is highly sensitive and specific, the handling of glass beads is tedious and cumbersome. The present study was undertaken to overcome this problem. METHODS Partially purified Amaranthus spinosus leaf oxalate oxidase was immobilized through ...

This study investigated the comprehensive characteristics of silver foil beads excavated from Tomb King Muryeong, based on composition analysis and glass morphological characterization. The major element components metal were using a scanning electron microscope (SEM) equipped with an Energy Dispersive X-ray spectrometer (EDS). Trace elements determined LA-ICP-MS to constrain source raw materia...

At present, 3D printing is experiencing a great boom. The demand for new materials also related to its expansion. This paper deals with manufacturing innovative polymer composite filaments suitable the Fused Filament Fabrication method in printing. As filler, common and uncostly glass beads were used mixed biocompatible biodegradable poly (ε-caprolactone), as matrix. material was characterized ...

Human peripheral blood neutrophils obtained from healthy adults were examined in vitro. We assessed the effects of sequential stepwise increases in the concentration of the chemotactic dipeptide N-formyl-l-methionyl-l-phenylalanine (f-Met-Phe) on neutrophil attachment to serum-coated glass, detachment from serum-coated glass and the distribution on the cell surface of binding sites for albumin-...