Dear Colleagues,

This Special Issue focuses on the sensing mechanism and performance of hydrogel-based sensors along with their healthcare and biomedical applications.

There has been widespread interest in portable in vitro, wearable, and implantable sensors where the use of hydrogels is particularly attractive owing to their low toxicity, reduced biofouling, biocomptability, and ability to conform to body contours. Hydrogels have been utilised in these sensors in the form of stimuli-responsive materials or as scaffolds for hosting recognition elements such as antibodies, aptamers, and enzymes. Such hydrogel-based sensors rely on changes in refractive index, colour, geometry, and electrical conductance to measure a wide variety of analytes, including proteins, DNA, hormones, ions, and carbohydrates. Analytes have been measured in biological fluids, such as blood, saliva, tears, sweat, and urine, to enable disease diagnosis and prognosis for personalised medicine and closed-loop therapeutics.

We look forward to receiving your contributions to this Special Issue.

Dr. Ruchi Gupta
Guest Editor

Manuscript Submission Information

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• hydrogels
• sensors
• point-of-care
• wearable
• implantable
• biomedical
• healthcare