Record number :
Title of article :
Registration of heavy metal ions and pesticides with ATR planar waveguide enzyme sensors
Author/Authors :
Alexei Nabok*، نويسنده , , Saharudin Haron، نويسنده , , Asim Ray، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Pages :
From page :
To page :
Abstract :
The proposed novel type of enzyme optical sensors is based on a combination of SiO2/Si3N4/SiO2 planar waveguide ATR (attenuated total reflection) transducer, fabricated by standard silicon planar technology, with the composite polyelectrolyte selfassembled coating containing both organic chromophores and enzyme molecules. Such devices were deployed to monitor typical industrial and agricultural water pollutants, such as heavy metal ions and pesticides, acting as inhibitors of enzyme reactions. The sensitivity of registration of these pollutants in the range of 1 ppb was achieved. The use of different enzymes in the sensitive membrane provides a background for pattern recognition of the above pollutants
Keywords :
Attenuated total reflection , Planar waveguide , Enzyme reactions , Inhibition of enzyme activity , heavy metal ions , pesticides
Journal title :
Applied Surface Science
Journal title :
Applied Surface Science
Serial Year :
Link To Document :