Mechanical Properties Of Carbon-Based Nanocomposites For Sensors Used In Biomedical Applications

In this paper, we present our initial findings related to the response of carbon nanohorns nanocomposites, processed as films with polyvinylpyrrolidone as matrix. Films having 1-8 sensitive layers (denoted 1L, 2L, 3L, 4L, 5L, 6L, 7L and 8L) of composite were subjected to mechanical stress and various temperature changes. A quick mechanical stress test was made by applying different loads (2 N, 5 N, 10 N and 20 N). We obtained Young elasticity modulus of 8.33 MPa (1L) and 3.99 MPa (8L). The electrical resistances of the sensors were measured for each deposition, showing a decrease from 838 Omega to 562 Omega (from 1L to 8L deposited). Optical microscopy images showed that the solution used as sensitive layer is resistant to temperatures from +50 degrees C to -50 degrees C.