From raw crustacean exoskeleton to chitosan ?

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How to control the relative humidity levels in a biological experiment involving grains as substrates ?

I'm conducting an experiment to evaluate the effect of different humidity levels on a specific treatment of grains (rice grains), I'm looking for a reliable method to control the relative humidity...

06 July 2016 3,979 7 View

Is there an easy way to prepare colloidal chitin to be used for bacterial media ?

I wanna check the ability of one bacteria to produce chitinase enzyme, in the literature it showed some methods to obtain the colloidal chitin, but last time I tried it, it failed, maybe because...

02 March 2015 5,386 4 View

Can chitosan alone can act as a reducing agent for Cu(0) nanoparticle sythesis?

[Synthesizing Cu nanoparticles without using chemical reductants]

01 March 2021 8,359 1 View

Suggestions for using antisense oligonucleotide for brain delivery?

hello I am working on a project that includes gene delivery to the brain. my intentions are encapsulating a gene in a Chitosan NP and IV administration the NP to rats. beside plasmids is there...

29 January 2021 4,455 5 View

How to find degree of deacetylation of chitosan colorimetrically?

I am working with low DD% chitosan. It doesn't dissolve completely in acidic solutions. How to calculate the degree of deacetylation by potentiometric and acid-base titration, UV spectroscopic...

27 January 2021 8,532 2 View

How to calculate theoretical drug loading for polymer nanoparticle and calculated nanoparticle ?

nanoparticles coated with chitosan as well uncoated nanoparticle

26 January 2021 9,053 6 View

What species (or genus even) of crab is this (bivalve using hermit type)?

Two weeks ago I found a peculiar crab in the intertidal zone in SW Florida. when found, the crab was not utilizing a shell. It was similar shaped to porcelain crabs found in our area, but with...

17 January 2021 1,620 4 View

What mechanism is involved when chitosan is coated on magnetic nanoparticles?

Hello! I am currently working on coating of chitosan on magnetic Fe3O4 nanoparticles. I am wondering how this coating process happened? i.e. through what mechanism that chitosan can be coated on...

13 January 2021 5,657 5 View

Is the chitosan solution soluble in the physiological environment of PBS (pH: 6.2)?

27 December 2020 1,263 3 View

Can you suggest me how can I use D2O for dissolving chitosan sample for NMR analysis?

I am trying to dissolve chitosan with pure D2O but it is not dissolving. I read some articles that used D2O for dissolving chitosan before 1H and 13C NMR analysis? Do I need to do some...

14 December 2020 6,931 5 View

Is there a way to prevent agglomeration of chitosan when i add a chitosan solution dropwise to a bilosomes suspension for the purpose of coating?

I am doing research on the incorporation of bile salts into liposomes and coating the exterior surface with chitosan for enhanced stability in the GIT. Eveything goes well up until the point where...

14 December 2020 4,894 3 View

When increasing pH of a solution of chitosan (polycation), will the pKa increase or decrease?

The amino group has a pKa of ca. 6,5

09 December 2020 667 2 View