Emergence of microfluidic wearable technologies
There has been an emerging interest in the development of microfluidic wearable technologies, arising from increasing demands in the areas of healthcare.
Flexible plastic, paper and textile lab-on-a chip platforms for electrochemical biosensing
Flexible biosensors represent an increasingly important and rapidly developing field of research.
Wearable sensors: modalities, challenges, and prospects
Non-invasive wearable sensing technology extracts mechanical, electrical, optical, and chemical information from the human body.
An implantable multifunctional neural microprobe for simultaneous multi-analyte sensing and chemical delivery
PDMS thin-film transfer and enzyme microstamping enabled 3-in-1 Si/PDMS hybrid chemtrode for multi-analyte sensing and chemical delivery in vivo.
An on-demand micro/nano-convertible channel using an elastomeric nanostructure for multi-purpose use
For microfluidic applications, we propose a nanochannel for easy fabrication and integration, which is capable of an easy transition between the 3 regimes on demand. We demonstrated an ionic diode and pre-concentration/sensing of DNA.
Real-time optical fiber sensors based on light diffusing microlens arrays
The applications of optical fibers are impeded in implantable medical diagnostics due to incompatibility with biological tissues, and immune reaction in vivo.
Contact lens-based lysozyme detection in tear using a mobile sensor
A rapid and cost-effective method for monitoring proteins in tear-fluid is reported, which enables biomarker monitoring using contact lenses toward personalized mobile-health applications.
Digital microfluidic meter-on-chip
On-chip digital microfluidic flowmetry can be designed and incorporated into standard microfluidic devices for high-precision multiplexed microflow measurements.
Liquid metal electrode-enabled flexible microdroplet sensor
A liquid metal-based soft sensor for droplet detection and evaluation in flexible microchannels.
Ultra-simple wearable local sweat volume monitoring patch based on swellable hydrogels
Presented is an ultra-simple wearable local sweat volume monitoring patch based on swellable hydrogels.
Soft, skin-interfaced microfluidic systems with integrated enzymatic assays for measuring the concentration of ammonia and ethanol in sweat
Soft microfluidics with reference reactions enable quantitative sweat ammonia–ethanol assay.
A versatile, cost-effective, and flexible wearable biosensor for in situ and ex situ sweat analysis, and personalized nutrition assessment
Point-of-care (POC) diagnostics have shown excellent potential in rapid biological analysis and health/disease monitoring.
A multi-modal sweat sensing patch for cross-verification of sweat rate, total ionic charge, and Na+ concentration
A wearable, multi-modal sensing patch for sweat rate and electrolyte analysis with inbuilt cross-verification schemes to ensure data integrity.
A rapid and low-cost fabrication and integration scheme to render 3D microfluidic architectures for wearable biofluid sampling, manipulation, and sensing
We devise a simple, scalable, and low-cost “CAD-to-3D Device” fabrication and integration scheme, which renders 3D and complex microfluidic architectures for wearable biofluid sampling, manipulation, and sensing.
Remotely controlled nanofluidic implantable platform for tunable drug delivery
An implantable nanofluidic device for remote controlled drug delivery.
Passive sweat collection and colorimetric analysis of biomarkers relevant to kidney disorders using a soft microfluidic system
Passive sweat collection and colorimetric analysis.
Overcoming transport limitations in miniaturized electrophoretic delivery devices
Combining experimental and theoretical approach, we demonstrate practical solutions to limiting currents in capillary-based electrophoretic delivery devices.
A liquid metal based capacitive soft pressure microsensor
A PDMS-based handy microsensor for on-chip microscale integrable pressure monitoring with high resolution.
Digital nanoliter to milliliter flow rate sensor with in vivo demonstration for continuous sweat rate measurement
A digital flowmetry sensor is fabricated with low limit of detection and wide dynamic range, that is suitable for lab-on-chip or wearable sweat sensing systems.
Complete validation of a continuous and blood-correlated sweat biosensing device with integrated sweat stimulation
A wearable sweat biosensing device is demonstrated that stimulates sweat and continuously measures sweat ethanol concentrations at 25 s intervals, which is then correlated with blood ethanol during a >3 hour testing phase.
A flexible enzyme-electrode sensor with cylindrical working electrode modified with a 3D nanostructure for implantable continuous glucose monitoring
A novel flexible enzyme-electrode sensor was fabricated with a big cylindrical working electrode which, cooperating with the surface-modified 3D nanostructure, significantly improved the sensitivity.
Ultra-sensitive microfluidic wearable strain sensor for intraocular pressure monitoring
A passive wearable microfluidic sensor for the 24 hour monitoring of intraocular pressure using a smartphone.
Open nanofluidic films with rapid transport and no analyte exchange for ultra-low sample volumes
Moving to ultra-low (<100 nL) sample volumes presents numerous challenges, many of which can be resolved by implementation of open nanofluidic films.
A wearable patch for continuous monitoring of sweat electrolytes during exertion
Implementation of wearable sweat sensors for continuous measurement of fluid based biochemical markers is an attractive alternative to common, yet intrusive and invasive, practices such as urine or blood analysis.
A fluorometric skin-interfaced microfluidic device and smartphone imaging module for in situ quantitative analysis of sweat chemistry
A wearable microfluidic system and smartphone optics module enabled in situ analysis of sweat.
Wearable tactile sensor based on flexible microfluidics
We developed a wearable tactile sensor using flexible microfluidics. This liquid-based sensor is thin, flexible and sensitive enough to be mounted on the skin or embedded in a fabric glove to detect tactile forces.
About this collection
A collection of recent reviews and research papers on the topics of wearable and implantable sensors published in Lab on a Chip and curated by the Lab on a Chip Editorial Board.
This topic area is currently the focus of an Editors’ Choice thematic collection in this field, led by the Lab on a Chip Editorial Board. More details about how to submit to the collection can be found at rsc.li/wearable-sensors-blog.