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Synthesis of Flexible Cellulose Based Bioelectrode for Neural Sensing Applications
Bioelectrodes act as pivotal interfaces between soft neural tissues and external devices for sensing or stimulating purposes. Conventionally, metals such as platinum and iridium have been utilized as bioelectrode materials. However, challenges in interfacing, design and implementation led to the exploration of alternative materials. These challenges include: biocompatibility, mechanical mismatches between tissues and electrodes, cost, reliability, durability in body fluids, and sustainability. This study proposes to synthesize and characterize natural-based cellulose bioelectrodes as flexible, viable, cost-effective, and sustainable substitute for conventional metal-based bioelectrodes, particularly in neural/muscle sensing applications. We report the synthesis of a composite cellulosebased bioelectrode using Polydimethylsiloxane (PDMS) and glycerol at varying compositions. The fabricated electrode was characterized electrochemically to determine its bulk impedance, conductivity, and charge storage density. Results show that the cellulose-based biomaterial containing 23% cellulose, 7% glycerol, and 70% PDMS exhibits a bulk impedance of 0.732 kΩ and a conductivity of 1.8×10−3 S/cm. The flexible electrode could store a charge of 0.589 mC/cm2 which is lower than the safe limit for some tissues.
Synthesis of Flexible Cellulose Based Bioelectrode for Neural Sensing Applications
Bioelectrodes act as pivotal interfaces between soft neural tissues and external devices for sensing or stimulating purposes. Conventionally, metals such as platinum and iridium have been utilized as bioelectrode materials. However, challenges in interfacing, design and implementation led to the exploration of alternative materials. These challenges include: biocompatibility, mechanical mismatches between tissues and electrodes, cost, reliability, durability in body fluids, and sustainability. This study proposes to synthesize and characterize natural-based cellulose bioelectrodes as flexible, viable, cost-effective, and sustainable substitute for conventional metal-based bioelectrodes, particularly in neural/muscle sensing applications. We report the synthesis of a composite cellulosebased bioelectrode using Polydimethylsiloxane (PDMS) and glycerol at varying compositions. The fabricated electrode was characterized electrochemically to determine its bulk impedance, conductivity, and charge storage density. Results show that the cellulose-based biomaterial containing 23% cellulose, 7% glycerol, and 70% PDMS exhibits a bulk impedance of 0.732 kΩ and a conductivity of 1.8×10−3 S/cm. The flexible electrode could store a charge of 0.589 mC/cm2 which is lower than the safe limit for some tissues.
Synthesis of Flexible Cellulose Based Bioelectrode for Neural Sensing Applications
Alex, Meera (author) / Ali, Amaal Abdulraqeb (author) / Al Othman, Amani (author) / Al Nashash, Hasan (author) / Al-Sayah, Mohammed H. (author)
2024-06-03
491265 byte
Conference paper
Electronic Resource
English
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