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SBIR/STTR

Cell Phone-based Lateral Flow Assay for Blood Biomarker Detection, Phase I

Completed Technology Project

Project Introduction

Cell Phone-based Lateral Flow Assay for Blood Biomarker Detection, Phase I
The ability to integrate a sensor platform with a cell phone for health monitoring and disease diagnosis for astronauts in space exploration has the potential to be cost effective and space saving. In this proposal, Intelligent Optical Systems (IOS) will build upon expertise in lateral flow test strip (LFTS) assays by integrating an LFTS with a cell phone for the quantitative measurement of blood-based biomarkers. Our innovative and extremely cost-effective multi-analyte LFTS approach is imminently suited for space travel. All "microfluidics" (sample transport, reagent storage, mixing, etc.) take place via capillary action with no moving parts, no flow channels, and in a 5 mm x 5 mm x 30 mm space. Taking advantage of the built-in flash and high resolution camera, we will modify a commercially available cell phone with optical filters, lenses, a UV LED excitation source and a cassette holder for LFTS image capture. Quantum dots (QD) will be incorporated as labels with high quantum yield, resulting in higher sensitivity and narrow emission peaks in a multiplexed assay. In Phase I, we will develop and optimize a cell phone-based LFTS platform with the ability to quantitatively detect multiple biomarkers within clinically relevant ranges. The images of the LFTS will be captured on the cell phone and analyzed on a computer by the end of the Phase I. In Phase II, we will develop cell phone-based software for on-cell phone detection and data processing with expanded panels of biomarkers; advancing the TRL from 5 to 7. More »

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