A wirelessly powered microspectrometer for neural probe-pin device
- Authors
- Choi, S.H.; Kim, M.H.; Song, K.D.; Yoon, H.; Lee, U.
- Issue Date
- 2015
- Publisher
- SPIE
- Keywords
- microspectrometer; neurotransmitter; Optical neural sensing; wireless power transfer
- Citation
- Proceedings of SPIE - The International Society for Optical Engineering, v.9668
- Journal Title
- Proceedings of SPIE - The International Society for Optical Engineering
- Volume
- 9668
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/10963
- DOI
- 10.1117/12.2202203
- ISSN
- 0277-786X
- Abstract
- Treatment of neurological anomalies, whether done invasively or not, places stringent demands on device functionality and size. We have developed a micro-spectrometer for use as an implantable neural probe to monitor neuro-chemistry in synapses. The micro-spectrometer, based on a NASA-invented miniature Fresnel grating, is capable of differentiating the emission spectra from various brain tissues. The micro-spectrometer meets the size requirements, and is able to probe the neuro-chemistry and suppression voltage typically associated with a neural anomaly. This neural probe-pin device (PPD) is equipped with wireless power technology (WPT) to enable operation in a continuous manner without requiring an implanted battery. The implanted neural PPD, together with a neural electronics interface and WPT, enable real-time measurement and control/feedback for remediation of neural anomalies. The design and performance of the combined PPD/WPT device for monitoring dopamine in a rat brain will be presented to demonstrate the current level of development. Future work on this device will involve the addition of an embedded expert system capable of performing semi-autonomous management of neural functions through a routine of sensing, processing, and control. © 2015 SPIE.
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