A notable trend in this area is the extensive use of commercial conductive filaments, enabling the fabrication of highly sensitive, low-cost biosensors.
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Electrochemical Biosensors 3D Printed by Fused Deposition Modeling: Actualities, Trends, and Challenges.
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The incorporation of metal particles, such as gold or silver, to act as redox mediators represents a significant trend but still faces challenges related to the homogeneity and control of the electrochemical properties of these filaments.