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Viscoelastic properties of human bladder tumours
S C Barnes1, B M Lawless1, D E T Shepherd1
1Department of Mechanical Engineering, University of Birmingham, Birmingham B15 2TT, United Kingdom.
Journal of the Mechanical Behavior of Biomedical Materials
|April 16, 2016
Summary
This study measured the viscoelastic properties of human bladder tumors, finding distinct mechanical behaviors. These findings could aid in developing new surgical tools and diagnostic methods for bladder cancer.
Area of Science:
- Biomedical Engineering
- Oncology
- Materials Science
Background:
- Bladder cancer is a common malignancy worldwide.
- Differences in mechanical properties between normal and malignant tissues are recognized.
- Macro-scale viscoelastic properties of human bladder tumors remain understudied.
Purpose of the Study:
- To investigate the macro-scale viscoelastic properties of human bladder tumors.
- To characterize the frequency-dependent mechanical behavior of bladder tumor tissues.
Main Methods:
- Dynamic mechanical analysis was employed to test ten human bladder tumor samples.
- Measurements were conducted at frequencies up to 30Hz.
Main Results:
- Storage modulus ranged from 0.052MPa to 0.085MPa.
- Loss modulus ranged from 0.019MPa to 0.043MPa.
- Both moduli exhibited frequency-dependent behavior, with the storage modulus consistently exceeding the loss modulus.
Conclusions:
- The study provides the first macro-scale characterization of human bladder tumor viscoelasticity.
- These viscoelastic properties offer potential applications in surgical simulation, device design, computational modeling, and diagnostics for bladder cancer.
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