6 Questions 18 Answers 0 Followers
Questions related from Ugur Bozuyuk
Dear all, I encapsulate pDNA into my nanoparticles, however, my particles are extremely sensitive to pH changes. For radical pH changes like from 4 to 7.4, they aggregate quickly. It cannot be...
22 November 2017 6,949 2 View
Dear all, I am trying to conjugate amino groups of chitosan with methacrylic anhydride. I am trying to understand chemistry of the reaction. Here is the...
06 July 2017 1,875 10 View
Hi everyone, I am trying to conjugate primary amine of chitosan with NHS-PEG-MAL. Chitosan is in a solution. In literature, some people directly add NHS-PEG-MAL powder to chitosan solution while...
28 March 2017 8,072 4 View
Hi all, I am trying to synthesize chitosan-tpp nanoparticles. I want to show nanoparticle formation via FT-IR. Some peaks shifts are attributed to nanoparticle formation for cs-tpp polymer. For...
02 December 2016 4,520 10 View
Hi everyone, It is said that light blue opalescence is an indicator for nanoparticle formation for cs-tpp system in most of papers. People say that if you have a clear solution, there is no np...
25 October 2016 7,795 21 View
Hi everyone, I have deacetalyzed low molecular weight chitosan polymer which is soluble in %0.5 (v/v) acetic acid solution. I prepared chitosan/acetic acid solution (0.5 mg/mL) and used DLS to see...
18 October 2016 749 11 View