Highlighted research relevant to wearables at Stanford University

Ballistic diagram

Characterization and modeling of partial-thickness cutaneous injury from debris-simulating kinetic projectiles

Prof. Reinhold Dauskardt et al develop predictive models of injuries to skin due to projectiles, using simulation of projectile size, shape, orientation, friction coefficient, and impact angle.

Hexagonal ring origami assemblies: Foldable functional structures with extreme packing

Prof. Renee Zhao et al report a design strategy for snap-folding hexagonal rings that can be folded to 1.5% and 0.4% of initial area and volume, respectively, for future applications as stints, novel medical devices, and soft robotics.
the flexible autonomous sensor

A flexible electronic strain sensor for the real-time monitoring of tumor regression

Prof. Zhenan Bao, Prof. Parag Mallick, Prof. William Hiesinger et al develop and demonstrate a proof-of-concept wireless device that that adheres to the skin to measure changes in tumor size below.
drawing of electrode

Electrochemical performance study of Ag/AgCl and Au flexible electrodes for unobtrusive monitoring of human biopotentials

Prof. Todd Coleman et al describe a methodology that can be used to optimize the impedance characteristics of electrodes and can be applied to the design of other stretchable electronics for different target frequencies, materials and electrode sizes.
hands holding smart phone

Insights into the mechanical properties of ultrathin perfluoropolyether−silane coatings

Prof. Reinhold Dauskardt et al determined that for film used as an anti-fingerprint coating on touchscreen displays, humidity and other field operating conditions affect film properties making optimal cross-linking characteristics less certain, as well as the precursor chemistry to achieve them.
mouse with wire coming out of head

A tissue-like neurotransmitter sensor for the brain and gut

Prof. Zhenan Bao, Prof. Xiaoke Chen et al describe a stretchable, neurochemical biological interface termed NeuroString that enables in vivo real-time, monoamine sensing in the brain, as well as measuring serotonin dynamics in the gut without disturbing peristaltic movement.
hardware being used

Longitudinal piezoelectric resonant photoelastic modulator for efficient intensity modulation at megahertz frequencies

Prof. Amin Arbabian et al demonstrate a novel modulator that could enable megapixel-resolution LiDAR and 3D capture with low-cost, standard image sensors as on phones with minimal extra hardware.
Stretchable display on a finger

High-brightness all-polymer stretchable LED with charge-trapping dilution

Prof. Zhenan Bao, Prof. Reinhold Dauskardt et al report a material design strategy and fabrication processes to achieve stretchable all-polymer-based light-emitting diodes colored red, green and blue that are wirelessly powered while worn and display real-time pulse signals.
Contact lens being put on

Bimetallic nanocatalysts immobilized in nanoporous hydrogels for long-term robust continuous glucose monitoring of smart contact lens

Prof. Zhenan Bao, Prof. David Myung, Prof. Sei Kwang Hahn et al demonstrate that smart contact lenses can accurately monitor changing blood glucose levels in diabetic and normal rabbits, and they evaluate the clinical feasibility and safety of the smart contact lenses for the human eye.

Nonlocal metasurfaces for spectrally decoupled wavefront manipulation and eye tracking

Prof. Mark Brongersma et al demonstrate a metasurface patterned on a regular pair of eyeglasses providing an unperturbed view of the world across the visible spectrum while redirecting near-infrared light to a camera, which allows imaging of the eye.