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Questions related from John Mc Guiller Daarol Calma
I have been using a rheometer to characterize my sample and recently we found out that our gap setting is very wide compared to the recommended gap of x3 the particle size. the Dz particle size...
05 April 2024 5,208 3 View
Hello, Our team is using carrageenan as a natural polymer for hydrogels. We'd like the surface of our hydrogel to be tough enough to resist minor scratch and tear. As much as possible, we'd like...
01 March 2024 9,756 3 View
Our team is currently developing a biodegradable hydrogel for external use (skin-contact use). We want to somehow coat the hydrogel to avoid excessive swelling and/or evaporation of water content...
20 February 2024 3,684 8 View
I determine the temporal behavior, frequency, and strain dependency of the hydrogel by rheology. I just wonder if I can determine the mechanical properties of my gel by using G' and G" taken from...
08 February 2024 4,708 2 View
Hello! I am investigating the extrudability of our bio-ink through rheology. Previously, I used a parallel plate to acquire the shear rate of the sample after which I tried an actual...
13 December 2023 9,485 6 View
Hello everyone, I am studying kappa carrageenan hydrogels to be utilized for medical use. We wanted to make a hydrogel made up of semi-refined kappa carrageenan as the main material together with...
22 June 2023 6,931 0 View
Hello everyone, I am struggling to find a better way to test the transparency of my hydrogels made of kappa carrageenan and/or with salts. I tried testing a 2cm thick hydrogel but the absorptance...
20 June 2023 6,570 3 View
Hello everyone! We are currently making 3d prints using semi-refined kappa carrageenan hydrogels. We will try to use polyvinyl alcohol since most published articles have very good but our problem...
06 June 2023 3,899 1 View
I am currently conducting a study on 3D printing of kappa carrageenan and we encounter problems related to liquid swelling that causes the shrinking of hydrogels over time that decreases the...
05 June 2023 3,337 4 View
Asking for help in converting files. I have a DICOM file and I have converted it to an STL file for 3D printing but we want to add thickness to the model since DICOM files are fixed in thickness....
02 June 2023 637 3 View
I am working with agarose hydrogels which are produced from powders with insoluble matter. I centrifugate it to separate these insoluble and take the supernatant to be used for research. I want to...
01 March 2023 6,776 2 View
