BIOSENSORS AND BIOELECTRONICS-SUPPLY 2K8

Code No: RR422307 Set No. 1
IV B.Tech II Semester Supplimentary Examinations, May 2008
BIOSENSORS AND BIOELECTRONICS
(Bio-Technology)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
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1. What are biological sensors ? Explain briefly differences among Biosensors, Chem-
ical sensors and Physical sensors. [16]
2. With respect to Sensors in general, what do you understand by
(a) Time constant
(b) Resolution
(c) Response time. [16]
3. Describe briefly
(a) Bilayer Lipid membranes
(b) Chemoreceptions. [16]
4. What is the working principle of Inductive sensor? What are its advantages? [16]
5. Write about the medical applications and working of Microdialysis Biosensor with
a neat diagram. [16]
6. Give an account on the following biosensors used in Online Monitoring
(a) Potentiometric Biosensors
(b) Amperometric Biosensors [8+8]
7. Explain about the errors in construction of Complex Molecular structure. [16]
8. Explain in detail about the following
(a) Assembly of Photonic biomolecular memory store.
(b) DNA Computation. [8+8]
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Code No: RR422307 Set No. 2
IV B.Tech II Semester Supplimentary Examinations, May 2008
BIOSENSORS AND BIOELECTRONICS
(Bio-Technology)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
⋆ ⋆ ⋆ ⋆ ⋆
1. What do you understand by molecular recognition? Explain briefly the simplest
mechanism for an enzyme catalyzed reaction. [16]
2. What do you understand by surface modification in Biosensors? Explain covalent
modification of Surfaces. [16]
3. What do you understand by “Photometric Transducers”? What is the use of wave
guide in the Photometric Transducers? [16]
4. Describe briefly the following:
(a) Piezo resistive effect
(b) Pyro electric effect
(c) Magnetostiction. [16]
5. Write about the applications and uses of Biosensors in clinical chemistry ,medicine
and healthcare. [16]
6. Explain about Laboratory based and Field Analytical based biosensors in Environ-
mental Monitoring. [16]
7. Write about the Carter’s list on number of possible Memory storage devices. [16]
8. Write about a two dimensional memory store Model with larger domains. [16]
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Code No: RR422307 Set No. 3
IV B.Tech II Semester Supplimentary Examinations, May 2008
BIOSENSORS AND BIOELECTRONICS
(Bio-Technology)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
⋆ ⋆ ⋆ ⋆ ⋆
1. What are biological sensors ? Explain briefly differences among Biosensors, Chem-
ical sensors and Physical sensors. [16]
2. What do you understand by Biological recognition Elements? Indicate primaries
categories of Enzymes used in Biosensors? [16]
3. What do you understand by Zero - Order sensors ? Indicate a simple linear rela-
tionship between Response and analyte concentration. [16]
4. Briefly describe the use of Bipolar circuits, MOS Circuits and Integrated Optics in
sensor technology. [16]
5. Explain in detail about the following used in various industries.
(a) Laboratory Analyser
(b) Flow devices [8+8]
6. Write about the signal transducers used in Environmental Monitoring.
(a) Potentiometric
(b) Amperometric
(c) Optical
(d) Piezoelectric [4+4+4+4]
7. Give an account on the potential advantages of a Biomolecular computer. [16]
8. Explain how a chromophore is used to create memory store in a photonic computer.
[16]
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Code No: RR422307 Set No. 4
IV B.Tech II Semester Supplimentary Examinations, May 2008
BIOSENSORS AND BIOELECTRONICS
(Bio-Technology)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
⋆ ⋆ ⋆ ⋆ ⋆
1. What do you understand by
(a) Entrapment
(b) Cross Linking
(c) Biological binding in Biosensors. [16]
2. With respect to Sensors in general, what do you understand by
(a) Time constant
(b) Resolution
(c) Response time. [16]
3. Explain in detail the working of a typical strain gauge type of transducer for mea-
surement of pressure. [16]
4. Briefly describe the working principle of Piezoelectric crystal based sensor. [16]
5. Give an account on Optic or Optoelectronic Biosensors and uses in various indus-
tries. [16]
6. Explain in detail about the biosensors used in Environmental Monitoring. [16]
7. Explain the problems in using Conventional chips and write how they are replaced
by Biochips. [16]
8. Discuss in detail about the Commercial prospects for biomolecular computing sys-
tem. [16]
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