Abstract: Disclosed herein is a microfluidic device, which includes a platform, at least one chamber provided in the platform to accommodate a sample, and at least one channel configured to couple the chambers to each other. The at least one chamber includes a detection chamber configured to detect the sample, and the microfluidic device further includes a light blocking portion configured to prevent external light from entering the detection chamber so as to prevent occurrence of errors in detection of the sample in the detection chamber. The microfluidic device can be useful for preventing the occurrence of detection errors which might otherwise be caused by interference of external light. The microfluidic device may also be useful for reducing an inspection time and for miniaturizing microfluidic devices. Further, the microfluidic device may be useful for preventing contaminants from entering the detection chamber.

Abstract: A microfluidic device having a delay structure and a sample testing apparatus including the microfluidic device are provided. The microfluidic device includes: a reaction chamber which contains a reagent capable of reacting with a sample; a distribution channel through which the sample is provided to the reaction chamber; an inlet channel through which the at least one reaction chamber is connected with the distribution channel; and a delay structure which is located between the at least one reaction chamber and the distribution channel, and delays movement of contents of the reaction chamber to the distribution channel.

Abstract: Disclosed herein is a microfluidic device, which includes a platform, at least one chamber provided in the platform to accommodate a sample, and at least one channel configured to couple the chambers to each other. The at least one chamber includes a detection chamber configured to detect the sample, and the microfluidic device further includes a light blocking portion configured to prevent external light from entering the detection chamber so as to prevent occurrence of errors in detection of the sample in the detection chamber. The microfluidic device can be useful for preventing the occurrence of detection errors which might otherwise be caused by interference of external light. The microfluidic device may also be useful for reducing an inspection time and for miniaturizing microfluidic devices. Further, the microfluidic device may be useful for preventing contaminants from entering the detection chamber.

Abstract: Provided are a microfluidic device, a method of analyzing a sample using the microfluidic device, and a method of measuring dilution ratios. The microfluidic device includes: a sample chamber which accommodates a sample to be tested; a dilution chamber which accommodates a diluent, receives the sample from the sample chamber, and provides a sample diluent; a first concentration detecting chamber which receives the sample from the sample chamber; and a second concentration detecting chamber which receives the sample diluent from the dilution chamber.

Abstract: Provided is a microfluidic device including: a sample chamber; at least one analyzing unit receiving a sample from the sample chamber and detecting components contained in the sample according to a reaction of the sample and a reagent; and a denaturation detection chamber determining the storage condition of the microfluidic device, wherein the denaturation detection chamber accommodates a material whose light absorption changes according to the temperature and the water thereof.

Abstract: A microfluidic device having a delay structure and a sample testing apparatus including the microfluidic device are provided. The microfluidic device includes: a reaction chamber which contains a reagent capable of reacting with a sample; a distribution channel through which the sample is provided to the reaction chamber; an inlet channel through which the at least one reaction chamber is connected with the distribution channel; and a delay structure which is located between the at least one reaction chamber and the distribution channel, and delays movement of contents of the reaction chamber to the distribution channel.

Abstract: A micro-fluidic device containing an anti-coagulant and a sample testing apparatus equipped with the same are provided. The micro-fluidic device includes a sample chamber which receives a sample, an anti-coagulant chamber which receives an anti-coagulant, a channel which communicably connects the sample chamber to the anti-coagulant chamber, and a valve which opens and closes the channel.

Abstract: Provided is a microfluidic device including: a sample chamber; at least one analyzing unit receiving a sample from the sample chamber and detecting components contained in the sample according to a reaction of the sample and a reagent; and a denaturation detection chamber determining the storage condition of the microfluidic device, wherein the denaturation detection chamber accommodates a material whose light absorption changes according to the temperature and the water thereof

Abstract: Provided are a microfluidic device, a method of analyzing a sample using the microfluidic device, and a method of measuring dilution ratios. The microfluidic device includes: a sample chamber which accommodates a sample to be tested; a dilution chamber which accommodates a diluent, receives the sample from the sample chamber, and provides a sample diluent; a first concentration detecting chamber which receives the sample from the sample chamber; and a second concentration detecting chamber which receives the sample diluent from the dilution chamber.