Atefeh Shiri

12 Questions 15 Answers 0 Followers

Questions related from Atefeh Shiri

How to determine hydrogen peroxide concentration in a sample?

Actually as I searched about, there are two major method in determining hydrogen peroxide concentration, one is titration with sodium thiosulfate and other is titration with permangenate, I wanted...

30 April 2024 3,497 4 View

What is the wavelength of Glycerol monostearate maximum absorption in spectrophotometric analysis?

in order to quantify the concentration of Glycerol monostearate in aqueous solution by UV spectrophotometer, what is the maximum lambda of Glycerol monostearate?

14 May 2023 4,266 3 View

What is the relation between duration of action of a drug and it's clearance?

Is it possible for a drug that it's duration of action time be bigger than it's clearance time?

18 January 2023 607 4 View

Is it possible to modify hyaluronic acid in order to make it hydrophobe?

As hyaluronic acid hydrogels are exteremly hydrophile, is there any possible method to modify them to have hydrophobe hyaluronic acid?

09 January 2023 1,566 4 View

How to find appropriate Alpha-defensin antibodies?

How can I recognize the possible antibodies and also the best antibody for a specific antigen? ( as I want to choose a proper antibody in immunobiosensor to detect Alpha defensin )

08 November 2022 7,290 0 View

What are the necessary steps in production of laundry industrial enzyme powder?

If the goal is to use the enzyme in detergents powder, how much purity is usually needed? Is it possible to use spray dryer just after one step precipitation of fermentation broth, to produce the...

13 December 2021 1,956 0 View

Can any one suggest a starting formulation to synthesize silicone gel elastomer(that can be used as a wound dress)?

We have tried to synthesize the silicone gel elastomer (HTV silicone , platinum-catalyzed addition curing) by mixing the PDMS-Vinyl terminated,poly(methyl hydrogen siloxane),PDMS-Hydrogen...

15 April 2021 7,708 4 View

What is the current method to measuring the residul DNA in bone allograft?

As the standard, residual DNA in bone allograft should not exceed 40ng DNA/g of dry ECM, So in quallity control part,the residual DNA have to be tested. I want to know what are the common test in...

09 February 2021 1,939 0 View

What are some good polymer to use for packaging a biological product ,which can be steril by gamma?

As different polymers with different characteristics are exist,I want to know What polymers can be used for packaging an orthobiologic product(bone allograft),which can have enough resistent to...

23 December 2020 8,324 5 View

Differents between "DecBM " and "ECM of a bone" and bone allograft?

What are the Differents between "DecBM " and "ECM of a bone" and bone allograft? Does bone allograft include "ECM" and "DecBM"? What are the differents between them?are their applications the...

05 September 2020 943 4 View

Is it necessary or important to decellularize bone in bone allograft processing?

Is it necessary or important to decellularize bone in bone allograft processing? When the bone is taken out of the body,the cells can not stay alive anymore,so after awhile they will die...

04 September 2020 3,872 6 View

A question about calculating the diameter of the shell in shell and tube heat exchanger;how can I determine the shell diameter when using NTW baffle?

I could find some furmula to calculate the shell dimeter based on the number of the tube and pitch distance;but when I want to use NTW baffle I can not put tubes in some part of the tube so I...

25 April 2020 1,215 6 View