Wearable Sweat Analysis Device for Disease Biomarker Detection
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Solution Overview
Problem
Current sweat analysis methods for disease diagnosis, particularly for detecting disease-specific antibodies and proteins, lack reliability and reproducibility, and standard point-of-care diagnostic assays are unable to identify these analytes from wearable collection devices effectively.
Innovation Solution
A portable, wearable device integrated with a sample collection and analyte measurement system that uses an assay unit with reactants to detect target analytes in sweat samples, allowing for the detection of antibodies and proteins through a detectable reaction product, enabling accurate health condition monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If standard point-of-care diagnostic sweat assays are used, then the analysis is simple and quick, but the ability to detect and identify disease-specific antibodies, peptides, and proteins is insufficient
Solution Approach 1:
The patent integrates multiple assay capabilities (detecting antibodies, peptides, proteins, and other analytes) into a nested hierarchical structure where a wearable collection device feeds into a portable measurement device containing an assay unit with multiple reactant panels. This nested architecture enables comprehensive disease-specific analyte detection while maintaining portability and ease of use.
Solution Approach 2:
The patent combines sample collection and analyte measurement functions into a single integrated portable device. The wearable sample collection device is directly connected to the analyte measurement device, merging what were previously separate laboratory-based functions into one unified point-of-care system that can detect multiple types of analytes simultaneously.
2Ease of operation
If wearable sample collection devices are used, then the sampling is non-invasive and continuous, but the detection of disease-specific antibodies and proteins lacks accuracy
Solution Approach 1:
The patent employs a wearable sample collection device that continuously collects sweat samples in advance, accumulating sufficient analyte concentrations before measurement. This preliminary collection phase ensures that even trace amounts of disease-specific antibodies and proteins are captured and concentrated, enabling accurate detection when the sample is later analyzed by the portable measurement device.
Solution Approach 2:
The patent introduces a portable analyte measurement device with an assay unit as an intermediary between the wearable collection device and final diagnosis. This intermediary component contains multiple reactant panels with specific binding agents that selectively capture and detect disease-specific antibodies, peptides, and proteins, thereby enhancing measurement precision while maintaining the ease of wearable sampling.
3Volume of moving object
If small sweat samples (1-50 μl) are analyzed, then the device portability is improved, but the sufficient analyte concentration for reliable detection is compromised
Solution Approach 1:
The patent employs local quality enhancement by concentrating analytes in specific localized regions within the assay unit. The reactant panels are designed with high-affinity binding sites that selectively capture target analytes from the small sweat sample, concentrating them in localized zones for enhanced detection sensitivity. This allows reliable detection of disease-specific antibodies and proteins even in minute sample volumes of 1-50 μl.
Solution Approach 2:
The assay unit utilizes composite reactant materials with multiple functional components including antibodies, aptamers, and enzymatic markers that work synergistically to amplify signals from trace analytes in small sweat samples. These composite detection systems enable reliable identification of disease-specific biomarkers even when present at very low concentrations in limited sample volumes.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device provides reliable and reproducible detection of disease-specific antibodies and proteins in small sweat samples, enhancing diagnostic accuracy and enabling continuous health monitoring.
Implementation Method 1
allowing the collected body fluid sample to react with the reactants, whereby a detectable reaction product is produced if a target analyte is present in the sample
Implementation Method 2
The reactants comprise a capture probe that binds specifically to the target analyte
Data Source
AI summary
Provided herein are methods of detecting and measuring disease-associated analytes such as proteins and antibodies in a sweat sample. Also provided are methods of determining and monitoring the disease state or physiological condition of a subject using small sweat samples.