Cross-cut: `sensor-cortisol`

Axis: sensors

2 corpus entries disclose this tag.

Earliest disclosure: 2014-07

Listed in chronological order. Each entry’s prior_art_notes and disclosure_citation constitute the citeable prior art material.

Bandodkar & Wang (2014) — ‘Non-invasive wearable electrochemical sensors: a review’ (2014-07)

id: bandodkar-wang-2014-wearable-electrochemical-sensors-review
corpus: academic
form factor: other
creator: Amay J. Bandodkar / Joseph Wang (UC San Diego)
disclosure: Bandodkar AJ, Wang J. ‘Non-invasive wearable electrochemical sensors: a review.’ Trends in Biotechnology 2014;32(7):363-371.
ip status: public-domain
sensors: sensor-lactate, sensor-electrolyte, sensor-ph, sensor-glucose-cgm, sensor-alcohol-transdermal, sensor-uric-acid, sensor-cortisol
algorithms: algo-electrolyte-trend, algo-hydration-status
prior art notes: Surveys, as of 2014, wearable non-invasive electrochemical biosensors across body fluids and form factors — temporary-tattoo electrodes on the skin (sweat lactate, Na+, ammonium, pH), textile-integrated sensors, mouthguard (saliva) sensors, contact-lens (tear glucose) sensors, and the transdermal/interstitial route — including the sampling, transduction, and on-body electronics issues. Prior art for wearable-electrochemical-sensing claims reciting any of the analyte/form-factor combinations collected here; the approaches were published by 2014. General anchor for the electrochemical wearable cross-cuts.

id: heikenfeld-2018-wearable-sensors-lab-on-chip-review
corpus: academic
form factor: other
creator: Jason Heikenfeld et al.
disclosure: Heikenfeld J, Jajack A, Rogers J, Gutruf P, Tian L, Pan T, Li R, Khine M, Kim J, Wang J, Kim J. ‘Wearable sensors: modalities, challenges, and prospects.’ Lab on a Chip 2018;18(2):217-248.
ip status: public-domain
sensors: sensor-ppg, sensor-ecg, sensor-eeg, sensor-glucose-cgm, sensor-lactate, sensor-cortisol, sensor-skin-temperature, sensor-bioimpedance
prior art notes: Authoritative 2018 review collecting wearable sensing across modalities — physical (motion, BCG/SCG, mechanoacoustic), electrophysiological (ECG/EMG/EEG), optical (PPG/SpO2, near-IR), thermal, electrochemical (sweat, saliva, tears, interstitial), and stimulation-coupled — across form factors (patch, watch, tattoo, contact lens, garment) and the challenges of body-fluid sampling, calibration, motion-artifact handling, and skin-electronics interfacing. Prior art establishing that the modality/form-factor combinations enumerated here were collected and surveyed by 2018; useful against later claims to those combinations. General anchor.