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Microneedle Sensors for Point‐of‐Care Diagnostics
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Journal Article
Microneedle Sensors for Point‐of‐Care Diagnostics
2024
Overview
Point‐of‐care (POC) has the capacity to support low‐cost, accurate and real‐time actionable diagnostic data. Microneedle sensors have received considerable attention as an emerging technique to evolve blood‐based diagnostics owing to their direct and painless access to a rich source of biomarkers from interstitial fluid. This review systematically summarizes the recent innovations in microneedle sensors with a particular focus on their utility in POC diagnostics and personalized medicine. The integration of various sensing techniques, mostly electrochemical and optical sensing, has been established in diverse architectures of “lab‐on‐a‐microneedle” platforms. Microneedle sensors with tailored geometries, mechanical flexibility, and biocompatibility are constructed with a variety of materials and fabrication methods. Microneedles categorized into four types: metals, inorganics, polymers, and hydrogels, have been elaborated with state‐of‐the‐art bioengineering strategies for minimally invasive, continuous, and multiplexed sensing. Microneedle sensors have been employed to detect a wide range of biomarkers from electrolytes, metabolites, polysaccharides, nucleic acids, proteins to drugs. Insightful perspectives are outlined from biofluid, microneedles, biosensors, POC devices, and theragnostic instruments, which depict a bright future of the upcoming personalized and intelligent health management. Microneedle sensors with diverse geometries, materials and fabrication methods have emerged as a minimally invasive analytical platform to detect a wide range of biomarkers in interstitial fluid. The “lab‐on‐a‐microneedle” platform has been elaborated with various sensing techniques to achieve point‐of‐care diagnostics in a conformable, low‐cost, accurate, and real‐time manner.
Publisher
John Wiley & Sons, Inc,John Wiley and Sons Inc,Wiley
Subject
