Multi-modal surface plasmon polariton—raman scattering based bio-detection
First Claim
1. A method for bio-detection using a microfluidics chip having a liquid-metal (LM) interface and a substrate-metal (SM) interface, comprising:
- directing light at said microfluidics chip;
measuring a first energy associated with photons of said light that interact with a first surface plasmon polariton (SPP) mode of said LM interface;
measuring changes in said first energy;
measuring a second energy associated with photons of said light that interact with a second SPP mode of said SM interface;
measuring changes in said second energy;
calibrating said changes in said first energy according to said changes in said second energy; and
detecting, using said calibrated changes in said first energy, refractive index changes within said microfluidics chip, wherein said refractive index changes result from bio-receptor molecules within said microfluidics chip binding with analytes,wherein said microfluidics chip comprises a nanohole array.
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Abstract
Methods and systems for combined SPP and Raman scattering-based bio-detection are provided. Embodiments include a bio-detection system having a microfluidics chip, a Surface Plasmon Polariton (SPP)-based system component, and a Raman scattering-based system component. The SPP-based and the Raman scattering-based system components can be used simultaneously or individually separately to detect biological and/or chemical analytes. The bio-detection system further includes an aerosol collector chip. Embodiments of the present invention can be used aboard means of propagation of biological and/or chemical analytes, including, for example, commercial aircrafts. Embodiments of the present invention can be used to enable an aircraft warning system.
11 Citations
19 Claims
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1. A method for bio-detection using a microfluidics chip having a liquid-metal (LM) interface and a substrate-metal (SM) interface, comprising:
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directing light at said microfluidics chip; measuring a first energy associated with photons of said light that interact with a first surface plasmon polariton (SPP) mode of said LM interface; measuring changes in said first energy; measuring a second energy associated with photons of said light that interact with a second SPP mode of said SM interface; measuring changes in said second energy; calibrating said changes in said first energy according to said changes in said second energy; and detecting, using said calibrated changes in said first energy, refractive index changes within said microfluidics chip, wherein said refractive index changes result from bio-receptor molecules within said microfluidics chip binding with analytes, wherein said microfluidics chip comprises a nanohole array. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13)
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11. A method for bio-detection using a microfluidics chip having a liquid-metal (LM) interface and a substrate-metal (SM) interface, comprising:
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measuring a first energy associated with photons of light that interact with a first surface plasmon polariton (SPP) mode of said LM interface of said microfluidics chip; measuring changes in said first energy; measuring a second energy associated with photons of light that interact with a second SPP mode of said SM interface of said microfluidics chip; measuring changes in said second energy; calibrating said changes in said first energy according to said changes in said second energy; and detecting, using said calibrated changes in said first energy, refractive index changes within said microfluidics chip, wherein said refractive index changes result from bio-receptor molecules within said microfluidics chip binding with analytes, wherein said microfluidics chip comprises a nanohole array. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification