1.13.11.3 enzyme immobilized on porous glass beads is stable over wide ranges of pH and temperature 439498 1.13.11.3 Fe3O4 nanoparticles-immobilized enzyme exhibits improved thermal stability compared to the free enzyme 741660 1.13.11.3 immobilization: slight increase of thermal stability, soluble and immobilized enzyme exhibit substantial activity in 2 M urea 439485 1.13.11.3 inactivated by reducing agents 439480 1.13.11.3 lyophilization, stable 439482 1.13.11.3 multi-walled carbon nanotube-immobilized enzyme exhibits improved thermal and pH stabilities compared to the free enzyme 743818 1.13.11.3 no loss of activity over a period of 78 d under aerobic conditions at 15°C at pH 7.0, pH 8.0 or pH 9.0 439511 1.13.11.3 UV irradiation: 38000 ergs per m2, inactivates 439482