Mohd Qasim

9 Questions 38 Answers 0 Followers

Questions related from Mohd Qasim

How to study 'Long term stability' of nanoparticle ? What does it mean in biomedical application.

I am preparing nanoparticle based drug nano carriers. I have seen in literature people discussing about 'long term stability' of nanocarrier. Long term stability' refer to how many hours or days...

30 May 2017 9,714 8 View

Why the crystallinity of iron oxide nanopowder increased on calcination ?

why the crystallinity of iron oxide nanopowder increased on calcination ? As prepared sample is showing less crystallinity than calcined one. why. what is happing actually? Any suitable paper?

05 May 2017 8,405 3 View

There different mathematical model for drug release profile. How to know which one is most suited?

can more than one model fit for the same drug release profile. Is is required to fit each one by one and check fitting?

19 September 2016 6,782 3 View

How much degassing time effects BET surface area measurement result?

I want to know that if we perform 2 hrs degassing and 12 hours degassing separately of mesoporous metal oxide (silica) does it will effect of BET surface area. Temperature is 150 oC.

18 September 2015 8,943 14 View

How much degassing time is needed for BET measurement?

Degassing of sample are done before BET measurement. Some report says around 10-12 hour degassing time. Some report mention only 5-6 hours. I want to know how much degassing time have effect on...

16 September 2015 5,270 12 View

Why does mesoporous material have an hysteresis loop in this adsorption-desorption N2 curve?

Please see attached.

23 November 2014 5,256 16 View

What is the minimum amount of sample required for BET surface area measurement of mesoporous silica NP?

How much sample is required for BET measurement? Please tell me the minimum quantity that we must use.

17 November 2014 3,282 4 View

Why do my MTT assay results sometimes show cell viability of more than 100%, or more than the control?

Generally cell viability of nanoparticle-treated samples should be less than the control one (100%). But sometimes it shows more than 100%. Is it due to some increment or growth in the number of...

14 November 2014 1,768 20 View

Which is the best method for synthesis of magnetic nano-particles for biomedical applications?

Many preparation methods are there such as coprecipitation, autocombustion, high temperature decomposition of organic precursors, reverse micelle method etc. My requirement is mono-dispersed...

06 November 2014 3,864 10 View