Title of article :
Surface plasmon resonance based fiber optic sensor for the detection of triacylglycerides using gel entrapment technique
Author/Authors :
Baliyan، K. S. نويسنده , , Anjli and Bhatia، نويسنده , , Priya and Gupta، نويسنده , , Banshi D. and Sharma، نويسنده , , Enakshi K. and Kumari، نويسنده , , Arti and Gupta، نويسنده , , Rani، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
Pages :
6
From page :
917
To page :
922
Abstract :
A novel surface plasmon resonance based fiber optic sensor for specific and sensitive estimation of triacylglycerides is reported. The sensor is based on the wavelength interrogation technique. Lipase enzyme, which is used to hydrolyse triacylglycerides into glycerol and fatty acids, is immobilized on the silver coated unclad portion of an optical fiber in a gel matrix. The fabricated sensor was tested for different concentrations of triacylglycerides. The shift in resonance wavelength of the transmission (SPR) spectra is directly proportional to the concentration of triolein/triacylglycerides. Sensor shows optimum response when operated at 37 °C and pH 7.0 with a response time 1 min and sensitivity 3.17 nm/mM. The performance of the sensor is linear in the range of 0.5–7.0 mM concentration of triacylglycerides (which is the range of triacylglycerides in human blood) and hence can be used in medical applications. The proposed sensor provides label free detection, has a fast response and high sensitivity, is compact, easy to fabricate and cost effective.
Keywords :
Optical fiber , Sensor , Surface plasmon , Lipase , Triacylglycerides
Journal title :
Sensors and Actuators B: Chemical
Serial Year :
2013
Journal title :
Sensors and Actuators B: Chemical
Record number :
1443071
Link To Document :
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