Emon Barua

6 Questions 5 Answers 0 Followers

Questions related from Emon Barua

What is the reason of difference in the percentage yield of synthetic hydroxyapatite obtained from solutions maintained at different pH values?

I synthesized Hydroxyapatite by wet chemical precipitation process with the help of a phosphate and calcium precursor and maintaining the pH of the solutions after mixing at different values using...

10 April 2020 7,751 3 View

How does alkali or acid pre-treatment of organic matter helps in their deproteinization?

I am working on Hydroxyapatite bio-ceramic and is trying to derive it from bone bio-wastes and fish scales by thermal degradation process. It is advised to deproteinize the bones and scales by...

24 February 2020 7,475 0 View

Why aging or maturing of hydroxyapatite increases its crystallite size?

It is an well-established fact that increasing the aging time of the precipitate while synthesizing HA influences the kinetics of the HA crystals which increases its size. But I am looking for a...

04 December 2019 6,688 4 View

How to make PLGA stable in water?

I am trying to develop hydroxyapatite/PLGA based composite for biomedical applications. However, my developed samples are not stable and they crushes when immersed in water. I found in literature...

22 September 2019 5,124 3 View

What is the best way to test the porosity of a scaffold?

The pore size of my developed bone scaffold ranges within 100-500 microns as observed from SEM analysis. What is the best way out of BET and mercury intrusion porosimetry to test the the pore...

20 August 2019 7,496 2 View

What is the reason for the difference in the elastic moduli and CTE of zigzag, armchair and chiral single-layered graphene sheets?

I evaluated the elastic moduli (Young's modulus and shear modulus) and coefficient of thermal expansion (CTE) of single-layered graphene sheets (SLGS) based on FEM analysis. It is well known that...

09 July 2019 7,903 0 View