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Name
Reg No
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
07 THRISSUR CLUSTER
Ph.D COURSEWORK EXAMINATION DECEMBER 2017
07CH7123
Nanomaterial and Nanotechnology
Time 3 hours
Max. Marks: 60
Answer all six questions. Part of each question is compulsory.
Answer either part or part of each question
Q.no.
Module 1
Marks
1a
Explain the significance of particle size in materials.
4
Answer b or c
b
Describe top down and bottom up approaches with suitable examples.
5
c
Explain defect structure and classification of defects in materials.
5
Q.no.
Module 2
Marks
2a
Explain the specific properties of nanomaterials.
4
Answer b or c
b
Explain the sol-gel method of nanoparticle synthesis. List its applications.
5
c
Describe the method of synthesis of TiO2 nanoparticles.
5
Q.no.
Module 3
Marks
3a
Write down the important properties of Carbon nanotubes.
4
Answer b or c
b
Explain the principles of AFM. Evaluate it as a characterization technique for nanomaterials.
5
c
Compare and contrast TEM and XRD.
5
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Q.no.
Module 4
Marks
4a
Explain the role of surfactants in the formation of polymer nanocomposites with suitable examples.
4
Answer b or c
b
Explain surface tension, surface energy and surface stress.
5
c
Describe the features of self-assembled ordered nanostructures.
5
Q.no.
Module 5
Marks
5a
What is the principle of nanoelectromechanical systems? Write down their applications.
5
Answer b or c
b
Describe various techniques of nanolithography.
7
c
Explain any four applications involving nanoelectronics.
7
Q.no.
Module 6
Marks
6a
Describe the term bionanotechnology.
5
Answer b or c
b
Explain the features of controlled drug delivery.
7
c
List any four applications of nanomaterials in medicines.
7