Affiliation:
1. School of Material and Energy University of Electronic Science and Technology of China Chengdu 610054 China
2. Yangtze Delta Region Institute (Quzhou) University of Electronic Science and Technology of China Quzhou 324000 China
3. Department of Engineering Science and Mechanics The Pennsylvania State University University Park Pennsylvania 16802 USA
4. Medico‐Engineering Cooperation on Applied Medicine Research Center University of Electronics Science and Technology of China Chengdu 610054 China
Abstract
AbstractThe concentration of dopamine (DA) and tyrosine (Tyr) reflects the condition of patients with Parkinson's disease, whereas moderate paracetamol (PA) can help relieve their pain. Therefore, real‐time measurements of these bioanalytes have important clinical implications for patients with Parkinson's disease. However, previous sensors suffer from either limited sensitivity or complex fabrication and integration processes. This work introduces a simple and cost‐effective method to prepare high‐quality, flexible titanium dioxide (TiO2) thin films with highly reactive (001)‐facets. The as‐fabricated TiO2 film supported by a carbon cloth electrode (i.e., TiO2–CC) allows excellent electrochemical specificity and sensitivity to DA (1.390 µA µM−1 cm−2), Tyr (0.126 µA µM−1 cm−2), and PA (0.0841 µA µM−1 cm−2). More importantly, accurate DA concentration in varied pH conditions can be obtained by decoupling them within a single differential pulse voltammetry measurement without additional sensing units. The TiO2–CC electrochemical sensor can be integrated into a smart diaper to detect the trace amount of DA or an integrated skin‐interfaced patch with microfluidic sampling and wireless transmission units for real‐time detection of the sweat Try and PA concentration. The wearable sensor based on TiO2–CC prepared by facile manufacturing methods holds great potential in the daily health monitoring and care of patients with neurological disorders.
Funder
National Natural Science Foundation of China
National Institutes of Health
National Science Foundation
Pennsylvania State University
Cited by
3 articles.
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