Abstract
Capabilities in real-time monitoring of internal physiological processes could inform pharmacological drug-delivery schedules, surgical intervention procedures and the management of recovery and rehabilitation. Current methods rely on external imaging techniques or implantable sensors, without the ability to provide continuous information over clinically relevant timescales, and/or with requirements in surgical procedures with associated costs and risks. Here, we describe injectable classes of photonic devices, made entirely of materials that naturally resorb and undergo clearance from the body after a controlled operational lifetime, for the spectroscopic characterization of targeted tissues and biofluids. As an example application, we show that the devices can be used for the continuous monitoring of cerebral temperature, oxygenation and neural activity in freely moving mice. These types of devices should prove useful in fundamental studies of disease pathology, in neuroscience research, in surgical procedures and in monitoring of recovery from injury or illness.
Original language | English (US) |
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Pages (from-to) | 644-654 |
Number of pages | 11 |
Journal | Nature Biomedical Engineering |
Volume | 3 |
Issue number | 8 |
DOIs | |
State | Published - Aug 1 2019 |
Funding
W.Z. acknowledges support from the Army Research Office under grant W911NF-15-1-0035. This work utilized the Northwestern University Micro/Nano Fabrication Facility, which is partially supported by the Soft and Hybrid Nanotechnology Experimental Resource (NSF ECCS-1542205), Materials Research Science and Engineering Center (NSF DMR-1121262), State of Illinois, Northwestern University and Center for Bio-Integrated Electronics (Simpson Querrey Institute). The Center for Developmental Therapeutics is supported by Cancer Center Support Grant P30 CA060553 from the National Cancer Institute, awarded to the Robert H. Lurie Comprehensive Cancer Center.
ASJC Scopus subject areas
- Biotechnology
- Bioengineering
- Medicine (miscellaneous)
- Biomedical Engineering
- Computer Science Applications