مهسا يارجانلو

This study investigates the potential applications of tannic acid and dopamine based self-adhesive and conductive hydrogels for coating sensors. The unique properties of hydrogels, which result from the adhesive and conductive properties of tannic acid and dopamine, have been investigated for their efficiency in sensor applications. Coating sensors are used in the fields of bioelectronics, tissue engineering and drug delivery. Among the challenges of these compounds are mechanical properties, mechanical strength and flexibility, conductivity stability and biocompatibility, which hydrogels based on tannic acid and dopamine have solved these challenges to a great extent. Synthesis method, characterization techniques and performance eva‎luation of sensors coated with hydrogels are discussed. Infrared Fourier transform spectrometer, elemental decomposition spectroscopy and field scanning electron microscope were used to analyze the synthesized hydrogels. Then, tannic acid-based hydrogel was used as the superior hydrogel in terms of adhesion and conductivity to conduct finger and wrist coating sensor tests, sound and breathing sensor tests. The obtained results showed that the hydrogel based on tannic acid has high conductivity, bioavailability and reproducibility. Tannic acid-based hydrogel with 75.3% of water showed a bandgap of 1.89 electron volts and dopamine-based hydrogel with 75.6% of water showed a bandgap of 2.41 electron volts. This research provides valuable insights into the development of coating sensors using tannic acid and dopamine-based hydrogels, with implications for various sensor technologies and applications.

هيدروژل , هيدروژل خودچسبنده , هيدروژل رسانا , هيدروژل تانيك اسيد , هيدروژل دوپامين

Hydrogel , self-adhesive hydrogel , conductive hydrogel , tannic acid hydrogel , dopamine hydrogel

Mahsa Yarjanlou

Dr. Shahrzad Javanshir