Gelatin hydrogels for rheometer

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SUMMARY

The discussion focuses on the challenges of preparing gelatin hydrogels for rheometer measurements, specifically addressing issues related to stickiness after chemical crosslinking with EDC (1-ethyl-3-(3-dimethylaminopropyl)carbodiimide). Marilli seeks solutions for creating suitable samples that can be easily punzed out. A referenced study suggests applying a uniform thin layer of silicone vacuum grease to the outer circular edges of the shear discs to mitigate water loss from the samples, which may help in achieving the desired consistency.

PREREQUISITES
  • Understanding of gelatin hydrogel chemistry
  • Familiarity with EDC crosslinking techniques
  • Knowledge of rheometer operation and sample preparation
  • Experience with silicone vacuum grease applications
NEXT STEPS
  • Research techniques for improving gelatin hydrogel consistency post-crosslinking
  • Explore alternative crosslinking agents for hydrogels
  • Learn about rheometer sample preparation best practices
  • Investigate the effects of silicone vacuum grease on rheological measurements
USEFUL FOR

Researchers and laboratory technicians working with gelatin hydrogels, rheometer operators, and anyone involved in material science focused on hydrogel applications.

marilli
Hello, I am Marilli and I have a problem. :p
I am trying to acquire some suitable samples for the rheometer measurements of gelatin hydrogels. The hydrogels are chemically crosslinked with EDC but after the crosslinking they remain sticky and therefore not suitable samples can be punzed out. Has anyone an idea?
 
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What is punzed?
 
This study also had a similar issue, this was their solution: " ...A uniform thin layer of silicone vacuum grease was applied to the outer circular edges of the shear discs to prevent water loss from the samples38."
 

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