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Tuesday, 8 October 2013

Nanosensors and devices-model question paper for B.Tech/M.Tech Nanotechnology

1(a) What is a vacuum sensor? (4 Marks)
(b) What are photoelectric switches? (4 Marks)
(c) Explain with the help of a neat sketch, the working of a pressure sensor. (6 Marks)
(d) Distinguish between venturi tube and dall tube. (6 Marks)
2(a) What is electroluminescence? (4 Marks)
(b) Write notes on magneto-optic kerr effect and Pockel’s effect. (8 Marks)
(c) Write notes on photoresistors and phototransistors. (8 Marks)
3(a) What is a calomel electrode? Explain its relevance in nanosensors. (6 Marks)
(b) Mention and explain some medically significant measurands. (8 Marks)
(c) Explain the working of a biopotential sensor. (6 Marks)
4(a) Distinguish between Coated-wire electrodes and polymer-membrane electrodes. (8 Marks)
(b) Write notes on cyclic voltammetry and Hydrodynamic amperometry. (8 Marks)
(c) Explain the working of Reagent-mediated sensors. (4 Marks)
5(a) Explain the working of a blood glucose sensor. (10 Marks)
(b) Distinguish between chemoreceptor and barroreceptor. (10 Marks)
6(a) Write a detailed note on BIA core system. (10 Marks)
(b) Write a note on applications of biosensor based instruments for the bioprocess industry. (10 Marks)
7 (a) What is AMR effect? (4 Marks)
(b) Write a note on flipping. (6 Marks)
(c) Distinguish between dipole Plasmon resonance and quadrupole Plasmon resonance. (6 Marks)
(d) Write a note on spin polarized tunneling in nanostructures. (4 Marks)
8(a) Explain how proteins are used as nanodevices. (4 Marks)
(b) What are nanostructured biocompartments? (6 Marks)
(c) Write a note on DNA Sequencing with Nanopores. (6 Marks)
(d) Explain charge-transfer mechanisms- charge-tunneling and thermal-hopping. (4 Marks)

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