Mask-based testing system for detecting biomarkers in exhaled breath condensate, aerosols and gases
View Patent ↗A mask-based testing system for detecting a biomarker received from lungs and airways of a test subject includes an exhaled breath condensate (EBC) collector integrated into an inside of a face mask worn by the test subject. The EBC collector converts breath vapor received from the lungs and airways of the test subject into a fluid biosample. A biosensor is fixed to the inside of the face mask for receiving a fluid biosample from the EBC collector and testing the fluid biosample for a target analyte. The biosensor generates a test signal dependent on at least the presence and absence of the target analyte in the fluid biosample. An electronic circuit is fixed to an outside of the mask for receiving the test signal, determining from the test signal a test result signal depending on detecting or not detecting the target analyte, and transmitting the test result signal to a remote receiver.
1. A testing system for detecting a biomarker received from lungs and airways of a test subject, comprising:
an exhaled breath condensate (EBC) collector integrated into an inside of a face mask worn by the test subject, the EBC collector for converting breath vapor received from the lungs and airways of the test subject into a fluid biosample, where the EBC collector comprises a droplet harvesting structure including a hydrophobic field for receiving the breath vapor and forming fluid droplets from the received breath vapor, and hydrophilic channels for receiving the fluid droplets from the hydrophobic field and channeling the fluid droplets together to form the fluid biosample;
a biosensor fixed to the face mask for receiving a fluid biosample from the EBC collector, testing the fluid biosample for a target biomarker,
and generating a test signal dependent on the target biomarker in the fluid biosample; and
an electronic circuit fixed to the face mask for receiving the test signal, determining from the test signal a test result signal depending on the target biomarker, and
transmitting the test result signal to a remote receiver.
2. The testing system according to claim 1 , where the EBC collector further comprises a thermal mass and a front face in thermal communication with the thermal mass, the front face being disposed facing towards the test subject's mouth and nose when the test subject is wearing the face mask and comprising the hydrophobic field and hydrophilic channels.
3. The testing system according to claim 2 , where the front face comprises comprising a metal foil hydrophobic surface having printed hydrophilic channels.
4. The testing system according to claim 2 , where the thermal mass comprises at least one of a super absorbent polymer, water, and an endothermic compound.
5. The testing system according to claim 4 , where the water is contained in a sealed structure and kept separate from the endothermic compound until an activation step where the water is released from the sealed structure to mix with the endothermic compound to cool down the front face.
6. A testing system for detecting a biomarker received from lungs and airways of a test subject, comprising:
an exhaled breath condensate (EBC) collector integrated into an inside of a face mask worn by the test subject, the EBC collector for converting breath vapor received from the lungs and airways of the test subject into a fluid biosample;
a biosensor fixed to the face mask for receiving a fluid biosample from the EBC collector, and testing the fluid biosample for a target biomarker, and generating a test signal dependent on the target biomarker in the fluid biosample, the biosensor comprising at least one of a conductive and semi-conductive base material disposed in a gap formed on a substrate between at least two probe electrodes, and capture molecules in electrical communication with the probe electrodes through the base material, where the capture molecule is fixed to the base material through hybridization of complementary DNA; and
an electronic circuit fixed to the face mask for receiving the test signal, determining from the test signal a test result signal depending on the target biomarker, and transmitting the test result signal to a remote receiver.
7. The testing system according to claim 6 , where the base material comprises at least one of graphene, carbon nanotubes, gold, a screen printed conductive material and a positively charged material.
8. The testing system according to claim 6 , where the capture molecules comprise at least one of an aptamer and an antibody.
9. A testing system for detecting a biomarker received from lungs and airways of a test subject, comprising:
an exhaled breath condensate (EBC) collector integrated into an inside of a face mask worn by the test subject, the EBC collector for converting breath vapor received from the lungs and airways of the test subject into a fluid biosample;
a biosensor fixed to the face mask for receiving a fluid biosample from the EBC collector, and testing the fluid biosample for a target biomarker, and generating a test signal dependent on the target biomarker in the fluid biosample, the biosensor comprising at least one of a conductive and semiconductive-a base material disposed in a gap formed on a substrate between at least two probe electrodes, and capture molecules in electrical communication with the probe electrodes though the base material, where the base material comprises an electric field align-able or magnetic field align-able particulate locked in alignment by a binding layer formed on a top surface of the substrate; and
an electronic circuit fixed to the face mask for receiving the test signal, determining from the test signal a test result signal depending on the target biomarker, and transmitting the test result signal to a remote receiver.
10. The testing system according to claim 9 , where the binding layer comprises at least one of a binding layer printed on the top surface and the top surface of the substrate.
11. The testing system according to claim 1 , where the electronic circuit comprises an amplification circuit for receiving the test signal from the biosensor and amplifying the test signal to an amplified electrical signal, and a comparator circuit for comparing the amplified electrical signal with a pre-determined value based on at least one of a computer model-derived and empirically-derived electrical signal calibration of the biosensor using at least one of a known presence and a known concentration of the target biomarker in a calibration sample, and the comparator circuit generating the test result signal based on the amplified electrical signal compared with the pre-determined value.
12. The testing system according to claim 11 , where the electronic circuit further comprises a biomarker concentration circuit for determining a concentration value of the target biomarker depending on the amplified electrical signal, where the amplified electrical signal changes value depending on a number of target biomarker molecules in the fluid biosample, and where the test result signal is dependent on the determined concentration value.
13. The testing system according to claim 11 , where the electronic circuit further comprises a wireless communication circuit for wirelessly transmitting the test result signal to at least one of a smart phone, tablet, computer, relay, access point and computer network.
14. A testing system for detecting a biomarker received from lungs and airways of a test subject, comprising:
an exhaled breath condensate (EBC) collector integrated into an inside of a face mask worn by the test subject, the EBC collector for converting breath vapor received from the lungs and airways of the test subject into a fluid biosample;
a biosensor fixed to the face mask for receiving a fluid biosample from the EBC collector, and testing the fluid biosample for a target biomarker, and generating a test signal dependent on the target biomarker in the fluid biosample;
a particulate capturing structure for receiving and capturing exhaled breath aerosol droplets and particulate (EBA) from airway linings of the test subject, the particulate capturing structure having an aerosol particulate testing system, wherein the aerosol particulate testing system includes a dissolvable EBA sample collector film for capturing EBA droplets and particulate; and
an electronic circuit fixed to the face mask for receiving the test signal, determining from the test signal a test result signal depending on the target biomarker, and transmitting the test result signal to a remote receiver.
15. The testing system according to claim 14 , wherein the particulate includes non-soluble particulates and droplet particulates, and wherein the dissolvable EBA sample collector film includes a surface for adhering to and capturing the non-soluble particulates and for capturing the droplet particulates.