2024 · Sensors · open access
Ichikawa et al.
A mouthguard-type wearable sensor continuously and wirelessly measures salivary turbidity with results equivalent to a spectrophotometer across a wide dynamic range, enabling remote assessment of oral hygiene.
A paraphrase to the Library’s standard, never the abstract. The source is one link away and is always the authority.
2026
This review establishes that microsampling across blood, saliva, urine and stool matrices offers validated workflows and regulatory recognition for human biomonitoring comparable to conventional methods. It finds that these decentralised approaches enhance participant acceptability and enable screening in remote or low-resource settings.
Rajamani & Poongavanam, Critical reviews in analytical chemistry (paywalled) · source ↗
2026
This study demonstrates that a memristor sensor can identify distinct electrical signatures in saliva and urine corresponding to different ovulation phases, suggesting a potential route for noninvasive home fertility monitoring.
Chen et al., ACS omega · source ↗
2026
This narrative review finds that saliva is best suited to repeated neuroendocrine and metabolic measurements during exercise, sweat is most mature for electrolyte and sweat-rate monitoring with wearable compatibility, and exhaled breath offers access to volatile metabolism but remains instrumentally demanding. Each matrix requires matching to a defined clinical or exercise question with matrix-specific validation before translational use.
Pang, Biomedical chromatography : BMC (paywalled) · source ↗
2026
Older adults with and without cognitive impairment were motivated to participate in longitudinal remote sleep research, finding it acceptable when device burden was low, usability high, and adequate support enabled routine integration. Varying cognitive task content and allowing timing flexibility reduced fatigue, while diverse recruitment remains needed for equitable representation in decentralised dementia trials.
Biswas et al., Journal of medical Internet research · source ↗
2026
Wearable biochemical monitoring requires a complete measurement chain that integrates quality-controlled biofluid sampling, sensor fusion and metadata capture to convert raw sensor outputs into clinically valid digital biomarkers.
Kızılkurtlu & Akpek, Biosensors (paywalled) · source ↗