A biosensor is an analytical device ,used for the detection of an analyte, that combines a biological component with a physiochemical detector It is an analytical device which converts a biological response into an electrical singal

1. By
SATHISHKUMAR G
(sathishsak111@gmail.com)

2.  Define biosensor
 Part of bio sensor
 Characteristics of bio sensor
 Generation
 Types of bio sensor
 Advantage
 Disadvantage
 application

3.  A biosensor is an analytical device ,used for
the detection of an analyte, that combines a
biological component with a physiochemical
detector
 It is an analytical device which converts a
biological response into an electrical singal

4. There are two parts:
Biological Component
Electrical Component
A biological component that acts as the sensor.
 An electrical component that detects and
transmits the singal.

5.  SENSITIVITY: value of the electrode
response
per substrate concentration
 RESPONSE TIME: necessary having 95% of
the response
 SELECTIVITY: chemical interference must
be minimised for obtaining the corrcet result
 CALIBRATION
 LIMIT OF DETECTION

8.  There are three generation
 FIRST GENERATION:
The 2 component(biocatalyst,transducer)
may be separated and both may remain
functional in the absence of the other.

9.  It can be constructed by designing an electrode
surface that is capable of capturing electron
which are usually transferred in the oxidation
and reduction reaction.

10.  The bio chemistry and where the electro
chemistry occur at a semiconductor, the term
bio chip may be applied to describe such
instruments.
 Most interaction of biocatalyst, transducer

14. Clalorimetric biosensor
Optical biosensor
Ion sensitive bio sensor
 Electrochemical biosensor
1.Potentiometric
2.Amperometric
Piezoelectric biosensor

15.  Linear response
 Tiny and bio compatible
 Require only small sample volume
 Rapid, accurate, stable sterilizalble
 Low cast

16.  Not compact with large sample volume.
 One time purpose.

17.  Food analysis
 Study of bio molecules and their interaction
 Drug development
 Crime detection
 Medical diagnosis
 Environmental field monitoring
 Industrial process control
 Diabetes, insulin therapy