Engineering Mechanics

Proceedings Vol. 29 (2023)

ENGINEERING MECHANICS 2023

Copyright © 2023 Institute of Thermomechanics of the Czech Academy of Sciences, Prague

 

Markūnienė I., Janušas G.
pages 155 - 158, full text

Biosensors are usually prepared from ceramics and polymer composites. Materials polyvinylidene fluoride - PVDF, hydroxyapatite - HA, polyhydroxyalkanoates - PHA and silver nitrate – AgNO₃, have properties very suitable for biosensors. Due to its well-known superior ferroelectric characteristics and biocompatibility, PVDF polymer has been widely used in several applications. Its applicability is restricted by hydroxyapatite's brittleness and weak bending strength. Numerous formulations for HA and polymer composites have been devised to make up for the mechanical weakness of HA. Because there is so much HA in the final product, HA/polymer composites are very biocompatible. The maximum piezoelectric activity is produced when an appropriate amount of silver is deposited, and silver nitrate has antimicrobial qualities. PHA’s are biocompatible, biodegradable, and exhibit piezoelectric and nonlinear optical properties, which can be useful for tissue engineering, drug delivery, biodegradable packaging, and smart materials. These materials were chosen to create functional element – film. The non-toxic solvent DMSO (dimethyl sulfoxide) and the solvent casting method for preparing the thin film were chosen for the preparation of the film. Hydrophilicity and surface roughness were chosen to measure the properties of the thin film.

Ownership of copyright in original research articles remains with the Authors, and provided that, when reproducing parts of the contribution, the Authors acknowledge and/or reference the Proceedings, the Authors do not need to seek permission for re-use of their material.

All papers were reviewed by members of the scientific committee.