ArticleSensors (Basel, Switzerland)2024
Impact of Impedance Levels on Recording Quality in Flexible Neural Probes.
Article in Sensors (Basel, Switzerland), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Full-Stack Architectures for Intelligent Brain-Computer Interfaces.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Review
- Understanding the Effects of Conductive Polymer Electrode Coating on Recorded Neural Signals.Advanced healthcare materials · 2026Article
- Towards bioelectric signal-enabled human healthcare monitoring: state-of-the-art, design strategies, challenge, and future.npj biomedical innovations · 2026Review
- Neurodatascience: Past, Present, and Future.Data science in science · 2026Article
- Direct laser carbonization of parylene-C toward microelectrodes forFrontiers in neuroscience · 2026Article
- Failure behavior of polymer microelectrode arrays encapsulated with conventional ALD and 3D-ALI barriers.Frontiers in bioengineering and biotechnology · 2025Article
- A Modular 512-Channel Neural Signal Acquisition ASIC for High-Density 4096 Channel Electrophysiology.Sensors (Basel, Switzerland) · 2024Article
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Flexible neural probes are attractive emerging technologies for brain recording because they can effectively record signals with minimal risk of brain damage. Reducing the electrode impedance of the probe before recording is a common practice of many researchers. However, studies investigating the impact of low impedance levels on high-quality recordings using flexible neural probes are lacking. In this study, we electrodeposited Pt onto a commercial flexible polyimide neural probe and investigated the relationship between the impedance level and the recording quality. The probe was inserted into the brains of anesthetized mice. The electrical signals of neurons in the brain, specifically the ventral posteromedial nucleus of the thalamus, were recorded at impedance levels of 50, 250, 500 and 1000 kΩ at 1 kHz. The study results demonstrated that as the impedance decreased, the quality of the signal recordings did not consistently improve. This suggests that extreme lowering of the impedance may not always be advantageous in the context of flexible neural probes.
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Registered trials
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