摘要:
A method of chemical and/or biological analysis including: providing a container delimited by a wall including an inner surface on which there is deposited an active component intended to make possible a chemical and/or biological reaction with a solution disposed in the container; filling the container with a liquid solution containing an analyte which is to be detected; and in applying to the liquid a succession of movements of aspirating/discharging a volume in the container at a suitable frequency to bring about resonance of the liquid so as to deform the free surface thereof and to result in a preferential distribution of the fluid along the inner surface of the wall of the container.
摘要:
The present invention relates generally to the field of analysis, for example biological analysis. More specifically, the present invention relates to an analysis device (10, 40, 501, 60) designed to be associated with a container (22, 50, 70) containing a sample (28) to be analyzed, said device comprising essentially: a first impervious membrane (12, 42, 52, 62); a second impervious membrane (14, 44, 54, 64) superposed on the first membrane (12, 42, 52, 62); said first and second membranes being fixedly attached over at least a part of their surface, defining a peripheral zone, in order to define an interstitial space forming an internal reaction cavity (16, 46, 56, 66), with no means of fluid communication with the outside of said analysis device (10, 40, 501, 60); at least one analysis means (18, 47, 57, 67), placed inside said internal reaction cavity (16, 46, 56, 66), designed to be placed in contact with the sample (28); at least one means designed to create a way for the sample to enter said internal reaction cavity. The present invention also relates to a container (22, 50, 70) comprising such an analysis device.The present invention also relates to a method of analyzing a sample contained in a container, in which an analysis device according to the invention is used.
摘要:
An instrument for conducting nucleic acid amplification reactions in a disposable test device. The test device includes a first reaction chamber containing a first nucleic acid amplification reagent (e.g., primers and nucleotides) and a second reaction chamber either containing, or in fluid communication, with a second nucleic acid amplification reagent (e.g., an amplification enzyme such as RT). The instrument includes a support structure receiving the test device. A temperature control system maintains the first reaction chamber at a first elevated temperature but simultaneously maintains the second nucleic acid amplification reagent at a second temperature lower than the first temperature so as to preserve the second nucleic acid amplification reagent. An actuator operates on a fluid conduit in the test device to place the first and second reaction chambers in fluid communication with each other after a reaction has occurred in the first reaction chamber at the first temperature. A pneumatic system is also provided that assists in fluid transfer of a reaction solution from the first chamber to the second chamber.
摘要:
The present invention relates generally to the field of analysis, for example biological analysis. More specifically, the present invention relates to an analysis device (10, 40, 501, 60) designed to be associated with a container (22, 50, 70) containing a sample (28) to be analyzed, said device comprising essentially: a first impervious membrane (12, 42, 52, 62); a second impervious membrane (14, 44, 54, 64) superposed on the first membrane (12, 42, 52, 62); said first and second membranes being fixedly attached over at least a part of their surface, defining a peripheral zone, in order to define an interstitial space forming an internal reaction cavity (16, 46, 56, 66), with no means of fluid communication with the outside of said analysis device (10, 40, 501, 60); at least one analysis means (18, 47, 57, 67), placed inside said internal reaction cavity (16, 46, 56, 66), designed to be placed in contact with the sample (28); at least one means designed to create a way for the sample to enter said internal reaction cavity. The present invention also relates to a container (22, 50, 70) comprising such an analysis device.The present invention also relates to a method of analyzing a sample contained in a container, in which an analysis device according to the invention is used.
摘要:
An instrument for conducting nucleic acid amplification reactions in a disposable test device. The test device includes a first reaction chamber containing a first nucleic acid amplification reagent (e.g., primers and nucleotides) and a second reaction chamber either containing, or in fluid communication, with a second nucleic acid amplification reagent (e.g., an amplification enzyme such as RT). The instrument includes a support structure receiving the test device. A temperature control system maintains the first reaction chamber at a first elevated temperature but simultaneously maintains the second nucleic acid amplification reagent at a second temperature lower than the first temperature so as to preserve the second nucleic acid amplification reagent. An actuator operates on a fluid conduit in the test device to place the first and second reaction chambers in fluid communication with each other after a reaction has occurred in the first reaction chamber at the first temperature. A pneumatic system is also provided that assists in fluid transfer of a reaction solution from the first chamber to the second chamber.
摘要:
A device for performing a test to determine the presence or the absence of at least one analyte in a liquid sample includes: a support and a matrix, fixed on the support. The matrix includes: a liquid sample application zone, a marking zone and at least one reaction zone. The one reaction zone includes: a test results display zone having at least a second immobilized binding partner which is able to bind to at least one analyte, and a monitoring zone downstream of the results display zone or parallel with the results display zone which allows monitoring of the correct functioning of the device and which includes at least one analogue of the at least one analyte which is able to bind to at least a first marked binding partner. The liquid sample application zone, marking zone and reaction zone are in fluid communication.
摘要:
The invention concerns a device for implementing a test card inside which sequential reactions and fluid transfer operations are performed under the effect of a control means integrated into the card; said card includes at least two sequential reaction systems arranged in parallel, each reaction system consisting of at least two fluid transfer systems arranged in series. The invention also concerns a test card and the method for implementing the device and the card. The device is characterized in that it contains at least one actuator per reaction line, and all the actuators are at a regular distance from one another, with the actuators preferably being equidistant. The invention is particularly applicable for the micromanipulation of fluids in biological applications.
摘要:
The invention relates to a method for isolating at least one fluid sample well laid out in a test card for analyses, said test card including a plate (3) having at least one first main face from which is laid out at least one channel communicating with at least said well, this first face being coated with a membrane (17) provided with an adhesive (18) and which will cover said channel with a covering area (171), the method for isolation including a phase for introducing a fluid sample into at least said well and a phase for isolating said well consisting of exerting a force on at least one portion of the covering area (171) of the adhesive membrane (17) for ensuring displacement of the adhesive into an obturation area for the sample well.
摘要:
An instrument for conducting nucleic acid amplification reactions in a disposable test device. The test device includes a first reaction chamber containing a first nucleic acid amplification reagent (e.g., primers and nucleotides) and a second reaction chamber either containing, or in fluid communication, with a second nucleic acid amplification reagent (e.g., an amplification enzyme such as RT). The instrument includes a support structure receiving the test device. A temperature control system maintains the first reaction chamber at a first elevated temperature but simultaneously maintains the second nucleic acid amplification reagent at a second temperature lower than the first temperature so as to preserve the second nucleic acid amplification reagent. An actuator operates on a fluid conduit in the test device to place the first and second reaction chambers in fluid communication with each other after a reaction has occurred in the first reaction chamber at the first temperature. A pneumatic system is also provided that assists in fluid transfer of a reaction solution from the first chamber to the second chamber.
摘要:
An instrument for conducting nucleic acid amplification reactions in a disposable test device. The test device includes a first reaction chamber containing a first nucleic acid amplification reagent (e.g., primers and nucleotides) and a second reaction chamber either containing, or in fluid communication, with a second nucleic acid amplification reagent (e.g., an amplification enzyme such as RT). The instrument includes a support structure receiving the test device. A temperature control system maintains the first reaction chamber at a first elevated temperature but simultaneously maintains the second nucleic acid amplification reagent at a second temperature lower than the first temperature so as to preserve the second nucleic acid amplification reagent. An actuator operates on a fluid conduit in the test device to place the first and second reaction chambers in fluid communication with each other after a reaction has occurred in the first reaction chamber at the first temperature. A pneumatic system is also provided that assists in fluid transfer of a reaction solution from the first chamber to the second chamber.