Related Experiment Video
Updated: May 17, 2026

Development of a Benchtop Model for Evaluating the Compatibility of Wound Dressing Materials with Negative Pressure Wound Therapy Systems
Published on: May 2, 2025
Super-absorbent dressings: how do they perform in vitro?
Keith F Cutting1, Samantha J Westgate
1Perfectus Medical, Sci-Tech Daresbury, Cheshire.
Abstract:
The free swell and absorption capacity under compression of six wound dressings that are indicated for moderately to highly exuding wounds was investigated. Measuring in vitro the absorptive capacity and retention under compression is important in terms of clinical efficacy and efficiency. This in vitro comparative study demonstrated that sorbion sachet EXTRA had the highest free swell capacity of the six test dressings and absorbed more than twice the volume (126%) of the test solution than its nearest competitor. When measuring capacity under compression, sorbion sachet EXTRA absorbed 88% more fluid than the nearest competitor.
Related Concept Videos
Methods for Studying Drug Absorption: In vitro
The diffusion cell method uses a two-compartment cell, including a donor compartment with the drug solution, which simulates the environment where the drug is applied, and a receptor compartment with a buffer solution, which simulates the environment...
Methods for Studying Drug Absorption: In situ
The Doluisio method involves perfusing a prepared segment of a rat's small intestine with a solution of radiolabeled drug and a non-absorbable marker. This helps to differentiate between absorbed and non-absorbed drug concentrations. The intestinal segment is connected at both ends using tubing and syringes,...
In Vitro Drug Dissolution: Compendial Testing Models II
In Vitro Drug Dissolution: Alternative Methods
