Flexible Specific Determination of Glucose in Solution, Blood Serum, and Sweat Using a Terahertz Hydrogel‐Functionalized Metamaterial
Source abstract
Abstract
Terahertz metamaterials have shown promises in biomolecules detection, however, aqueous solvents such as blood serum strongly absorb the terahertz waves, interfering with the detection. To avoid such interference, an ultrathin, flexible, biogel‐based metamaterial that can specifically detect the transmission of terahertz waves through biomolecules in aqueous solution is proposed and demonstrated. The glucose in water can be detected with a sensitivity of 0.0446 dL mg−1 and a detection limit of 1.64 mg dL−1, as well as glucose in human serum. The metamaterial that detects glucose in human sweat is part of a wearable device. The biosensor functions well for more than 100 detection cycles. The results suggest a strategy for real‐time detection of glucose and potentially other biomolecules.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Terahertz technology and applications · Acoustic Wave Resonator Technologies · Photonic and Optical Devices
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Center for Terahertz Waves and Key Laboratory of Optoelectronics Information and Technology (Ministry of Education) School of Precision Instrument and Optoelectronics Engineering Tianjin University Tianjin 300072 China
School of Precision Instrument and Optoelectronics Engineering Tianjin Key Laboratory of Biomedical Detecting Techniques<?brk?> and Instruments Tianjin University Tianjin 300072 China
School of Electrical and Computer Engineering Oklahoma State University Stillwater OK 74078 USA
Funding
National Natural Science Foundation of China
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