Single-cell label-free assay
First Claim
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1. A method for characterizing the response of live-cells a to a stimulus, the method comprising:
- contacting the live-cells immobilized on a resonance waveguide grating (RWG) biosensor with a stimulus for a selected cellular target;
interrogating and detecting the dynamic mass redistribution (DMR) of each individual cell of the stimulus contacted live-cells using a spatially resolved swept wavelength RWG biosensor imaging system, wherein the system uses a wavelength tunable light source to illuminate and interrogate the biosensor and a digital camera to detect and record the resonant wavelength image of the RWG biosensor with a pixelated resolution less than the average size of the individual live-cells; and
determining the effect of the stimulus on the cell-signaling of the cellular target in the different individual cells among the stimulus contacted live-cells.
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Abstract
The disclosure provides a system and method for characterizing a single live-cell response to a stimulus with a biosensor imaging system having cells immobilized on the biosensor at a resolution level of a single cell, as defined herein.
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19 Claims
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1. A method for characterizing the response of live-cells a to a stimulus, the method comprising:
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contacting the live-cells immobilized on a resonance waveguide grating (RWG) biosensor with a stimulus for a selected cellular target; interrogating and detecting the dynamic mass redistribution (DMR) of each individual cell of the stimulus contacted live-cells using a spatially resolved swept wavelength RWG biosensor imaging system, wherein the system uses a wavelength tunable light source to illuminate and interrogate the biosensor and a digital camera to detect and record the resonant wavelength image of the RWG biosensor with a pixelated resolution less than the average size of the individual live-cells; and determining the effect of the stimulus on the cell-signaling of the cellular target in the different individual cells among the stimulus contacted live-cells. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification