Abstract
Exposure to electromagnetic radiation (EMR) from the sun and from artificial lighting systems represents a modifiable risk factor for a broad range of health conditions including skin cancer, skin aging, sleep and mood disorders, and retinal damage. Technologies for personalized EMR dosimetry could guide lifestyles toward behaviors that ensure healthy levels of exposure. Here, we report a millimeter-scale, ultralow-power digital dosimeter platform that provides continuous EMR dosimetry in an autonomous mode at one or multiple wavelengths simultaneously, with time-managed wireless, long-range communication to standard consumer devices. A single, small button cell battery supports a multiyear life span, enabled by the combined use of a light-powered, accumulation mode of detection and a light-adaptive, ultralow-power circuit design. Field studies demonstrate single- and multimodal dosimetry platforms of this type, with a focus on monitoring short-wavelength blue light from indoor lighting and display systems and ultraviolet/visible/infrared radiation from the sun.
| Original language | English (US) |
|---|---|
| Article number | eaay2462 |
| Journal | Science Advances |
| Volume | 5 |
| Issue number | 12 |
| DOIs | |
| State | Published - Dec 13 2019 |
Funding
We thank T. Marks and W. Zhu at Northwestern University for providing access to the Newport-Oriel IQE-200. K.K. acknowledges the Outbound Program of Korea Advanced Institute of Science and Technology funded by the Korean government. Funding: Research reported in this publication was supported by the National Cancer Institute of the NIH under award number R44CA224658. The content is solely the responsibility of the authors and does not necessarily represent the official views of the NIH. The materials and engineering efforts were supported by the Center for Bio-Integrated Electronics of the Simpson Querrey Institute at Northwestern University.
ASJC Scopus subject areas
- General
