Question
What is the main application of the optically active
biodegradable nanocomposite film developed by researchers at the Institute of Advanced Study in Science and Technology (IASST)?Solution
Researchers have fabricated an optically active biodegradable nanocomposite film with excellent mechanical properties that can be used as a stretchable optical devices like flexible display, flexible organic LED, etc. Numerous methodologies have been adopted to improve the properties of polymeric materials by using suitable nanomaterials. The nanomaterials are known to enhance the properties of the polymers keeping the inherent properties of the polymers intact. Scientists have reported that polyvinyl alcohol (PVA) is one of the most widely studied synthetic biodegradable polymers having good film-forming and excellent mechanical properties. A research group from physical sciences division of the Institute of Advanced Study in Science and Technology (IASST), Guwahati, an autonomous institute of North-East India under the Department of Science and Technology (DST), fabricated a biodegradable PVA-CuO nanocomposite film using a facile solution casting technique, where Cu salt used as a precursor for the in-situ CuO nanoparticles formation under different heat treatment. This research group is led by Dr. Sarathi Kundu, Associate Professor, along with Mr. Saiyad Akhirul Ali, working as a Junior Research Fellow (JRF).
- The current age ratio of Aman to Bhanu is 4:1. In six years, Aman’s age will be three times Bhanu’s age at that time. What is Aman’s present age?
The ratio of ages of A and B, 2 years ago was 5:2. The sum of present ages of A, B and C is 64 years. If present age of C is equal to sum of present age...
Present age of 'X' is 60% more than that of 'Y'. Present age of 'Z', who is 5 years older than 'Y', is 25 years. After how many years from now, ratio of...
Six years ago, the age of 'R' compared to the age of 'M' six years from now was in the ratio 4:7. If the current average age of 'R' and 'M' is 33 years,...
Mahesh said to his son, “At the time of your birth” I was as old as you are at present. If the Mahesh’s age is 42 years now then what will be the ...
B is 3 years older than A and A is 7 years older than C. If the sum of the age of A and C is 27 years, then find the sum of the ages of all three.Â
Currently, the ages of Rahul and Ritesh are in a ratio of 7:3. If we look back three years, the ages of Ritesh and Ramesh had a ratio of 1:3. Knowing th...
The ratio of ages of Aryan's grandfather and his father 14 years ago was 5 : 3. The present age of Aryan's grandfather is 7/2 of Aryan's age. If the age...
Present ages of 'A' and 'B' are in the ratio 6:5, respectively. Present age of 'C' is 50% more than 'B'. If the difference between present ages of 'C' ...
A shopkeeper marks an article 30% above its cost price and gives a discount of 10% on the marked price. What is the profit percentage?