Biosensor is the term used for a whole class of sensors that utilize a biochemical reaction to determine a specific compound

1. BIOSENSOR
A
PRESENTATION
ON
PRESENTED BY:
SUNIL KUMAR GANGBER
EEE 7TH SEM
3162513312
GEC RAIPUR

2. CONTENT
Introduction
History
Principle
Use of biosensor
Need
Scope
Features
Conclusion
Reference

3. INTRODUCTION
A biosensor is an analytical device which
converts a biological response into an
electrical signal.
Biosensor are devices use to detect the
presence of a biological analyte, such as a
biomolecule.
Biosensors consist of 3 parts :
component that recognizes the analyte and
produces a signal, signal transducer,
reader device.

4. HISTORY
In 1956, Professor Leland C Clack published a
paper about oxygen electrode.
In 1974, Thermal transducers such as thermal
enzyme probes and enzyme thermistor’s were
proposed.
In 1976, clemens incorporated an
electrochemical glucose biosensor, which was
marketed with the name of biostator.

6. USES OF BIOSENSORS
Environmental monitoring
Military
Medical

7. PRESENT APPLICATIONS OF
BIOSENSORS
The development of biosensors in industry
can improve manufacturing techniques, which
would allow for a wider range of sensing
molecules to be produced at a cheaper rate.
In the field of medicine, tumor cells are used
as a biosensor to a monitor chemotherapeutic
susceptibilities.
Biosensors also play a roll in manufacturing of
pharmaceuticals and replacement organs such
as an artificial pancreas for diabetics.

8. NEED FOR BIOSENSOR
Specificity
With biosensors, it is possible to measure
specific analytes with great accuracy.
Speed
Analyte tracers or catalytic products can be
directly and instantaneously measured.
Simplicity
Receptor and transducer are integrated into
one single sensor & the measurement of target
analytes without using reagents is possible.

9. SCOPE
Sensor incorporating
Enzymes
Antibodies
Nucleic acids
Whole cells
Tissues and organelles

10. FEATURES OF GOOD BIOSENSORS
 During the analysis, the biocatalyst must be highly
definite and the temperature and other conditions
should be normal. It should show good result over a
large no. of assays.
 It should be taken care during the reaction that
physical constraints should not effect the reaction
like pH, stirring and other such constraints.
 During the reaction, if the response of the reaction is
accurate, precise and can be reproduced easily, that
reaction is considered best and useful.

11. CONCLUSION
Biosensors consist of bio-recognition system,
typically enzymes or binding proteins, such as
antibodies, immobilized onto the surface of
physico-chemical transducers.

12. REFERENCES
^Turner, Anthony; Wilson, George; Kaube, isao
(1987). Biosensors: Fundamentals and
applications. Oxford, UK: Oxford University
press. P. 770. ISBN 0198547242.
^Banica, Florinel-Gabriel (2012). Chemical
Sensor and Biosensord: Fundamentals and
Applications. Chichester, UK: John Wiley &
Sons. P. 576. ISBN 9781118354230