摘要:
A test module having an outer casing dimensioned for hand-held portability, the outer casing having an inlet for receiving a biological sample containing a target nucleic acid sequence, probes in the outer casing for hybridization having a nucleic acid sequence for hybridization with a target nucleic acid sequence to form a probe-target hybrid, the probe-target hybrid being configured to generate a fluorescence signal in response to an excitation light, and, an excitation LED for generating the excitation light, the LED positioned in the outer casing for simultaneously illuminating all the probes.
摘要:
A test module for detecting hybridization of probes with target nucleic acid sequences, the test module having a casing configured for hand held portability, the casing having a receptacle for receiving a biological sample with target nucleic acid sequences, an array of probes for hybridization with the target nucleic acid sequences, an excitation light source for illuminating the array of probes, and a photosensor for sensing a fluorescence emission from any of the probes in the array that have hybridized with the target nucleic acid sequences.
摘要:
A test module for analyzing a sample fluid and communicating data to a medical database, the test module having a receptacle for receiving the sample, functional sections for processing and analyzing the sample, a communication interface for communication with the medical database, and, a controller for operative control of the communication interface.
摘要:
A test module for detecting hybridization of probes with target nucleic acid sequences, the test module having a receptacle for receiving a biological sample with target nucleic acid sequences, an array of probes for hybridization with the target nucleic acid sequences, an excitation light emitting diode (LED) for illuminating the array of probes, CMOS circuitry having a photosensor for sensing a fluorescence emission from any of the probes in the array that have hybridized with the target nucleic acid sequences such that the CMOS circuitry is configured to use outputs from the photosensor to generate a signal indicative of the probes that have hybridized, wherein, the array of probes and the CMOS circuitry are integrated on a lab-on-a-chip (LOC) device contained within the test module.
摘要:
A microfluidic device having a supporting substrate, an inlet for receiving a biological sample containing target nucleic acid sequences, probes that each have a nucleic acid sequence for hybridization with a respective one of the target nucleic acid sequences to form a probe-target hybrid and emit a fluorescence signal in response to an excitation light, and, photosensors corresponding to each of the probes respectively, and, a control photosensor not corresponding to any of the probes such that the control photosensor does not sense the fluorescence signal of a corresponding probe-target hybrid during correct operation of the microfluidic device.
摘要:
An oligonucleotide spotting device for contactless spotting of probes onto a surface, the probes having nucleic acid sequences that are complementary to target nucleic acid sequences to be identified in a biological sample, the oligonucleotide spotting device having a supporting substrate, an array of ejectors, each having an actuator for ejecting droplets of liquid containing the oligonucleotide probes, CMOS circuitry for providing each of the drop ejection actuators with a drive pulse for droplet ejection, and, bond-pads for electrically connecting the CMOS circuitry and an external microprocessor controller for operative control of the array of ejectors.
摘要:
A microfluidic device having a supporting substrate, an inlet for receiving a biological sample containing a target nucleic acid sequence, probes that each have a nucleic acid sequence for hybridization with the target nucleic acid sequence to form a probe-target hybrid, a fluorophore and a quencher configured such that the fluorophore emits a fluorescence signal in response to an excitation light and the quencher quenches the fluorescence signal when the probe is not hybridized, but fails to quench the fluorescence signal from the probe-target hybrid, and, a reporter with a fluorophore positioned for exposure to the excitation light simultaneously with the probes, wherein, the reporter always emits the fluorescence signal in response to the excitation light.
摘要:
A LOC device for amplifying nucleic acid sequences and detecting target nucleic acid sequences, the LOC device having a supporting substrate, restriction enzymes for digesting double stranded nucleic acid sequences at known restriction sites, linker primers for ligation to the restricted ends of the double stranded nucleic acid sequences, heaters for thermally cycling the nucleic acid sequences through a polymerase chain reaction (PCR) process, deoxyribonucleoside triphosphates (dNTPs) for extending the linker primers along the nucleic acid sequences, and, probes for hybridizing with target nucleic acid sequences.
摘要:
A LOC device having a supporting substrate, primer-linked, stem-and-loop probes, each with a nucleic acid sequence that matches one of a plurality of target nucleic acid sequences, and a primer for elongating against the target nucleic acid sequence to form a complementary sequence such that during use the nucleic acid sequence matching the target nucleic acid sequence anneals to the complementary sequence to change a fluorescence emission from the probe in response to an excitation light, a polymerase chain reaction (PCR) section for amplifying the target nucleic acid sequences in the fluid prior to hybridization with the FRET probes, and, CMOS circuitry on the supporting substrate, the CMOS circuitry having operative control of the excitation light.
摘要:
A test module for lysing cells in a fluid, the test module having an outer casing with receptacle for receiving a fluid containing cells, a lysis reagent reservoir containing a lysis reagent and having a valve, and, a lysis section in fluid communication with the receptacle for holding the fluid during lysis of the cells, the lysis section having a lysis heater for heating the fluid in the lysis section, wherein, the valve is upstream of the lysis section and configured to open as the fluid flows into the lysis section thereby adding the lysis reagent to the fluid.