Few questions about chitosan?

More Safna Hussan K.P's questions See All

Is the Difference Between Numerical and Experimental Results of 3D Printed Ribbed Plates in Abaqus Due to Tie Constraints?

I am developing a numerical model that optimizes the placement of ribs or stiffeners on a base rectangular plate. For the base plate, we use shell elements, while the ribs or stiffeners are...

12 February 2024 7,837 2 View

Covert vector into an image using matlab?

I am trying to convert vector into an image using the code below clear variables load(Exe4_2022.mat') n = length(b); figure, imagesc(reshape(b,sqrt(n),sqrt(n))), colormap(gray), axis off; But I am...

03 December 2022 8,086 5 View

Linear least squares problem??

linear least squares problem:: fit f(t) = sin(t) on the interval [0, π] with polynomials of degree n with n = 1, 2, 3, · · · , 10. Here, we use equally spaced nodes. Solve the normal...

30 October 2022 2,371 5 View

Comparison by applying the hydrostatic pressure on middle and Top of shell surface in Abaqus?

I have done a comparison by applying the hydrostatic pressure on the middle and top of the shell curve surface (Section Assignment: Shell offset = Middle or Top surface in Abaqus). In the case of...

17 August 2022 8,688 0 View

How do I set up Abaqus for topology optimization?

We usually use Strain Energy as an objective with volume constraint in topology tasks. But if I want to reduce the mass/volume reduction of structure as much as possible until displacement along...

16 December 2021 328 3 View

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07 December 2021 2,226 2 View

I have dry leaf powder of mash plants , i want to analyzed by FTIR what types of metabolites changes induced by drought stress in mash plant?

I want to test these leaf dry material with both dry as well as liquid method of FTIR. please i need guidence which solvent will be suitable to test it and how much amount of solvent is required...

11 November 2021 7,090 3 View

Difference Between FEA Result and Hand Calculation in Beam Bending stress and deflection ?

Comparison of simply supported T-beam and beam attached to the shell plate is done. Simply supported T-beam calculations are performed analytically and numerically (ABAQUS software). The beam...

07 November 2021 4,421 4 View

Why is the difference between T-beam (Analytical result) and beam attached to the plate (Abaqus results) ?

I want to compare the T-beam (Analytical solution) to beam attached to the plate with same dimensions (Abaqus result), but there is huge difference between the two results. 1) dimensions and load...

24 October 2021 718 5 View

How to do thousands of dead load analysis together in OpenSees without changing manually??

Hi all, I need some solutions or idea regarding my problem. Hope you people can help me regarding this matter. Please see the below image. At different node, i can assign different point load as...

20 October 2021 9,413 0 View

Does anybody know why my chitosan/pva/gelatin hydrogel dissolve in PBS?

My final research is about making chitosan/pva hydrogel for wound healing using gelatin as crosslinker. Last month, i made the thin film hydrogel and it turn well. It was okay. Last week, i make...

28 July 2024 2,794 6 View

How i figuer out the weight of curcumin powder?

I am trying to load curcumin emulsion in 4% chitosan gel but i don not know how many mg powder is needed ?

10 July 2024 2,462 1 View

What are the strategies to improve the stability of chitosan nanoparticles in DMEM (cell culture media)?

Hi, I am synthesising chitosan nanoparticles using the ionic gelation method and I am characterising the nanoparticles in distilled water and in DMEM (cell culture), however the zeta potential in...

01 July 2024 1,526 1 View

How to load Remedesivir drug into mesoporous nanoparticles?

Hello, I want to load Remedesivir (RNA polymerase inhibitor) into mesoporous nanoparticles (MSNs). The issue is drug is temperature and pH sensitive and it degrades quickly. I need advice on its...

01 July 2024 889 3 View

Any better protocol for entrapment efficiency of curcumin?

I am currently trying to measure the entrapment efficiency of curcumin in liposomes. Typically, this measurement can be done by centrifugation, and I have followed the protocol outlined by Asif et...

01 July 2024 7,007 1 View

Can I magnetic stirrer chitosan 24 hours hours but 6 hours stirring 10 hours break like that?

I need to magnetic stirrer chitosan for 24 hours. In this case, if I magnetic stirrer the chitosan solution for 6 hours, then I take 10 hours of breaks. I followed this 4 times so that the overall...

31 May 2024 9,202 0 View

How to solubilize Chitosan( high molecular weight) in a aqueous solution ?

Hi everyone, there is my issue: I try to synthetize nanoparticule of Chitosan according with this study doi: 10.1016/j.colsurfb.2011.09.042 I try it with HMW Chitosan (340-360kDa) but when I put...

29 May 2024 1,763 2 View

Problem while making hydrogel from chitosan and gelatin ?

A uniform mixture of chitosan and gelatin is made by dissolving in acetic acid, after that the mixture is transferred to a plastic petri plate kept at -20 C for 24h and then lyophilized. But i am...

29 May 2024 7,367 4 View

What method is good for doing in vitro degradation study of PCL microsphere by change in weight calculation or change in diameter (from microscope)?

I have prepared some polymeric microspheres from chitosan and PCL. However while performing in vitro degradation study, I found difficulties in both above mentioned methods. Here I am mentioning...

20 May 2024 6,114 4 View

Silver chitosan nanoparticles were synthesized using cold plasma, we observed that the solution reverted to being transparent after one day. Reasons?

We prepared a solution using silver nitrate, chitosan, and sodium tripolyphosphate to synthesize silver chitosan nanoparticles. This solution was subjected to cold atmospheric pressure plasma for...

19 May 2024 9,317 2 View

Jasim Ahmed

You can use 1% acetic acid or lactic acid both works well.

Khaleel A Abu-Sbeih

Chitosan dissolves in aqueous acetic acid solutions. You can use different concentrations of acetic acid. After finishing your reaction, you can neutralize the solution with a base like NaOH.

António Maximiano Fernandes

Acetic acido solution. You can enhance the solubility using ultrasonic

Safna Hussan K.P

Thank you all for your informstion.I think I can use one molar acetic acid then use ultrasonic to dissolve it after that the solution can be neutralised with a base.

Ugur Bozuyuk

add your chitosan to double distilled water, add acetic acid under chitosan dissolves under rigorous stirring.