A numerical analysis of the contact stresses on surface of the femoral condyles of a knee prosthesis

Author:

JM Rodríguez-LelisORCID,JA Arellano-Cabrera,A Abúndez-Pliego,JA Rodríguez Ramírez,J Pérez Ortega

Abstract

Significant concerns have been raised about the potential harmful impact of radio frequencies (RF) transmitted from these devices, especially with the excessive usage of mobile telecommunication systems. A faraday cage was constructed to house cell culture plates in between a radio transmitter and its receiver. Three different cell lines were cultured on 10μg/mL of collagen and fibronectin and exposed to RF using an 8-bit encrypted pulse signal at 433 MHz, 1.02 (Amps) for 3 hours to determine the cell proliferation effects. The results demonstrated that HFF-1 on fibronectin with RF exposure compared to no exposure significantly increased the proliferation rate by 1.55-folds on days 3 and 1.53-folds on day 7, respectively. HFF-1 on collagen with radio transmission compared to no transmission, the proliferation rate significantly increased on 2.34-folds on day 3 and 2.18-folds on day 7 respectively. In contrast, the SKBR3 on fibronectin with radio transmission compared to no transmission the proliferation rate significantly increased by 2.63-folds on day 3 and significantly decreased by 1.68-folds on day 7. Likewise, SKBR3 on collagen with radio transmission unveiled the proliferation rate significantly increased by 1.11-folds on day 3 and significantly decreased by 6.49-folds on day 7. Moreover, L6 on fibronectin with RF exposure compared to no exposure, the proliferation rate significantly decreased by 1.54-folds on day 7. L6 on collagen with radio transmission, revealed the proliferation rate significantly increased by 1.69-folds on day 3 and significantly decreased by 1.64-folds on day 7. In conclusion, radio transmission exposure significantly increases the proliferation rate of HFF-1 cell-lines and significantly decreases the cell proliferation of both the SKBR3 and L6 cell lines overall.

Publisher

MedCrave Group Kft.

Reference25 articles.

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