Helen Kas

13 Questions 46 Answers 0 Followers

Questions related from Helen Kas

What is the reason for change in cole -cole plot?

In cole-cole plot the radius of semi-circle increases with temperature due to positive coefficient and decreases with negative coefficient. But in my case the cole cole changes randomly with...

15 February 2018 6,971 0 View

What is the reason for decrease in PL intensity of Hydroxyapatite doped metal ions?

Photoluminescence intensity decreased by adding ions.What is the reason for this?In papers the reason for the decrease in intensity due to quenching phenomenon.But I can't get the clear solution

17 April 2017 7,581 2 View

How to analyse AFM images of hydroxyapatite?Whether roughness must more or less for the medical applications?

In some papers, I saw roughness must high for implants and coatings, but some papers show if it does not have smooth surface means it is not suitable for the medical application.What is the use of...

04 February 2017 5,091 2 View

How to interpret the AFM result,What are the calculation part in this study?

I took AFM for hydroxyapatite and i don't know how to interpret it please anyone help me or send some references regarding AFM for hydroxyapatite?

26 August 2016 4,831 7 View

What are the best method for doing antibacterial studies on biomaterials from synthetic materials?

I want to do antibacterial studies on HAP with dopings but don't have clear idea on methods with concentration measurements for each method.For each method different procedures are followed so...

21 June 2016 4,510 6 View

What is the difference between doping and substitution?

I want to synthesis hydroxyapatite with different oxides for certain studies, but the stoichiometric ratio of HAP must 1.67 ratios. That means how I will identify Whether it is doped oxides or...

13 May 2016 6,216 5 View

CAn anyone suggest me the best method for synthesis hydroxyapatite other than sol-gel and hydrothermal method?

What is the best and easiest method other than sol-gel and hydrothermal method for synthesis hydroxyapatite nanomaterials?

06 April 2016 6,776 2 View

How can we avoid agglomeration of nanomaterials?

How to avoid agglomeration of nano materials especially for powder samples.If we having samples more days after synthesis that also reason for this,how to overcome it Any alternative for this...

21 November 2015 585 10 View

What are the uses of polymers in medical field especially water soluble polymers?

I want to know about water soluble polymers uses, properties, and medical applications.

29 October 2015 5,173 4 View

What are the different characterization studies for hydroxyapatite with polymer based on specific applications?

In means of characterization studies for hydroxyapatite with polymer other than XRD,FTIR,SEM,TEM

29 August 2015 9,906 2 View

How do I remove impurities in nanoparticles?

If we synthesizing powder as nano-particles how to remove impurities?If we washing using water means the nano size particles can move out with water also know,Other than washing how to remove...

31 July 2015 6,013 7 View

What is the difference between Ti and Zr?

Is there any different property or advantage over these materials?Can we use these for any medical applications?

14 July 2015 9,429 8 View

What are the materials can we used with hydroxyapatite for medical treatment?

I want materials which we can use in orthopedics and in dental with hydroxyapatite

03 June 2015 4,730 9 View