The carbonic anhydrase activity of human platelets was investigated by measuring the kinetics of CO2 hydration in supernatants of platelet lysates by using a pH stopped-flow apparatus. An average carbonic anhydrase concentration of 2.1 microM was determined for pellets of human platelets. Analysis of the kinetic properties of this carbonic anhydrase yielded a Km value of 1.0 mM, a catalytic-cen...

In this study, a protocol for synthesising β-C2S using K2SO4 as dopant has been reported. Quantitative X-Ray diffraction was used to characterise synthesised samples. It observed that it is possible synthesise with high purity (>96 wt%) and limit the formation of free lime below 0.5 wt% protocol. Unreactive γ-C2S main secondary phase present in sintered Isothermal calorimetry studies were condu...

Introduction: Metakaolin (MK) is used as supplementary cementitious material to reduce the CO 2 footprint of Portland cements. However, early hydration cement (OPC) often retarded due its use. The present work investigates mechanisms this retardation. Focus laid on interaction MK with main clinker phase C 3 S (Ca SiO 5 , pure form alite) that known govern kinetics OPC. Methods: Hydration reacti...