Development and Characterization of Biomaterials for Biomedical Applications /
Fatima Zahra
- 53p. Soft Copy 30cm
The rapid advancement of biomedical devices has sparked a growing need for power sources that are not only efficient, but also sustainable, capable of functioning in diverse physiological environments. It is in light of this demand that our study introduces a design, fabrication, and characterization of novel bilayer polyelectrolyte films, specifically targeted at enabling heterogeneous moisture-enabled energy generation in biomedical devices. The proposed bilayer is composed of two distinct layers - the polycationic and polyanionic layers. These layers are meticulously constructed, one layer at a time, and are sandwiched between copper electrodes. The underlying principle of operation lies in the diffusion of charges across the opposing layers upon water adsorption. To evaluate the efficacy of the device, electrical characterization of the bilayer polyelectrolyte films is conducted, revealing the efficiency of the device. SEM analysis further demonstrates the diffusion of charges within the opposite layers. In order to comprehensively assess the performance of the HMEG, various parameters are considered, including the stacking layers of polyelectrolytes, the thickness of the bilayer polyelectrolyte films, the device area, relative humidity, temperature, and electric resistance. The endurance of HMEG devices is meticulously evaluated under mechanical deformations, serving as a testament to their remarkable robustness for potential biomedical applications. This assessment showcases the resilience and durability of these devices, indicating their suitability for demanding medical settings. Moreover, the investigation into the reversibility of electricity generation in HMEG sheds light on its reliability and repeatability, further bolstering the credibility of this energy harvesting approach. The findings not only underscore the promising nature of HMEG technology but also emphasize its potential for facilitating sustainable energy solutions in the biomedical field. This study makes a significant contribution to the realm of biomedical energy harvesting by introducing a pioneering approach that harnesses moisture-enabled energy generation using bilayer polyelectrolyte films.