Abstract:
PURPOSE: A device for separating tumor cells from blood is provided to minimize damage to collected tumor cells by using a microstructure which controls pressures. CONSTITUTION: A device for separating tumor cells from blood includes inlets(102i), a fluid channel(110), and outlets(102o). Blood is injected through the inlets. The fluid channel is equipped with at least one loop-shaped microstructure(120). The blood is transferred through the fluid channel, and the fluid channel collects tumor cells from the blood. Blood without the tumor cells is discharged through the outlet. The microstructure includes a body(B), an introducing unit, a discharging unit, and a plurality of inlets, and a plurality of outlets. The body is composed of two parallel lines. The introducing unit and the discharging unit are hemi-circular shapes and are adjacent to the inlet and outlet by being in contact with both sides of the body. The inlets are larger than the tumor cells and are formed at 45 degrees of the center of the hemi-circular shape. The outlets are smaller than the tumor cells and larger than blood corpuscle. The outlets are formed over the entire discharging unit.
Abstract:
PURPOSE: A lab-on-a-chip comprising a first reaction agent in a recessed region is provided to increase probability of reacting a fluid sample and the first reaction agent, and to improve diagnosis efficiency. CONSTITUTION: A lab-on-a-chip comprises an inlet(120o), a fluid channel, a first reaction part(A), and one or more second reaction parts(170,180,190). The inlet is used for injecting a fluid sample. The fluid channel is used for transferring the fluid sample. The first reaction part has a first reaction agent which reacts with a sample of the fluid sample and forms a first sample-reaction agent reactant. The second reaction part contains a second reaction agent which reacts with the first sample-reaction agent reactant and forms a second sample-reaction agent reactant, and is formed on the surface of the fluid channel.
Abstract:
PURPOSE: A multiple analyzer and a method for analyzing cancer cells in blood are provided to analyze cancer cells in each cancer. CONSTITUTION: A multiple analyzer comprises a magnetophoresis sorting part, a magnetic field measuring unit, and an analyzing and determining unit. The magnetophoresis sorting part comprises: a solution inlet; a saline solution inlet; a channel which is connected to the solution inlet and the saline solution inlet; one or more ferromagnetism patterns which are placed under the bottom of the channel; a first discharging path which is connected to the channel and discharges a first kind of material contained in the solution; and a second discharge path which is connected to the channel and discharges a second kind of material contained in the solution. A method for analyzing cancer cells in blood comprises the following steps: a step of mixing blood to be tested with a magnetic nanoparticle which is conjugated with a cancer cell-specific antibody, and preparing a mixture solution(S10); a step of dividing the mixture solution into normal cells and cancer cells by magnetophoresis(S20); a step of continuously measuring a magnetic field of the cancer cells(S30); and a step of analyzing and determining cancer cells in each cancer using the magnetic field of the cancer cell(S40). [Reference numerals] (AA) Blood; (BB) Magnetic nanoparticles; (CC) Mixture solution; (S20) Magnetophoresis division: dividing cancer cells and normal cells; (S30) Continuously measuring the magnetic field of the cancer cells; (S40) Analyzing/determining the cancer kinds of cancer cells
Abstract:
PURPOSE: A multiple sorting apparatus and a method for sorting cancer cells in blood using the same are provided to sort the cancer cells by each kind of cancer and to simply diagnose cancer development. CONSTITUTION: A multiple sorting apparatus(100) comprises a first magnetophoresis sorting part(MP1) and a second magnetophoresis sorting part(MP2). The first magnetophoresis sorting part has a first channel(CH1). One side of the first channel is connected with a mixture solution inlet port(IP1) and a first saline solution inlet port(IP2). The other side of the first channel is connected with a first outlet port(OP1) and a preliminary separation path(PSP). The second magnetophoresis sorting part has a second channel. One side of the first channel is connected with a second saline solution inlet port(IP3) and a preliminary separation path. The other side of the second channel is connected with the second outlet port(OP2).
Abstract:
PURPOSE: A separating apparatus using self-assembling material-based graphene nanostructure as a separating part and a manufacturing method of the same are provided to improve the reducibility of components and to be integrated with microfluidic channels and electric components. CONSTITUTION: A manufacturing method of a separating apparatus using self-assembling material-based graphene nanostructure includes the following steps: protective layers are formed on the lower side and the upper side of a substrate(201); parts of the lower side and the upper side of the substrate are exposed by patterning the protective layers; the protective layers on the exposed parts of the substrate are etched; graphene nanostructure with columnar pores is transferred on the upper side of the substrate; and a nanostructure etching mask layer is removed from the graphene nanostructure.
Abstract:
본 발명은 미세유체 소자의 유체 흐름 조절 방법 및 미세유체분석장치에 관한 것으로, 이 방법은 수평에 대한 미세유체소자의 기울기를 조절함으로써, 미세유체소자 내에서 간단하고 정밀하게 유체의 흐름을 제어할 수 있다. 이로써 유체의 이송을 완벽하게 제어할 수 있으며, 적은 양의 시료만으로 검사를 진행할 수 있다. 이 방법은 사용자에 의해 수동으로 진행될 수 있어 전력을 필요로 하지 않아 경제적이며, 간단하다. 또한 이 미세유체 분석 장치는 수평에 대해 상기 미세유체소자 수용부의 기울기를 유발하기 위한 기울기 작동수단과 상기 기울기 작동수단의 동작 상태를 제어하기 위한 기울기 제어부를 구비함으로써, 간단하고 정밀하게 유체의 흐름을 제어하여 유체를 정확하게 분석할 수 있다. 미세유체소자, 미세유체분석장치, 기울기, 중력, 모세관력
Abstract:
세포 배양 컴파트먼트 유닛은 다공성 멤브레인을 사이에 두고 분리된 세포 배양 영역과 바이오 물질 방출 영역과, 상기 세포 배양 영역의 상기 다공성 멤브라인 위에 구비된 압전 소자와, 상기 압전 소자 상에 구비되며 그 위에 세포가 안착되는 세포 부착용 박막을 포함한다. 압전 고분자(piezoelectric polymer), 전도성 고분자(conducting polymer), 세포 배양(cell culture), 줄기 세포 분화(stem cell differentiation), 전기장(electric field)
Abstract:
본 발명은 정량이 가능한 일회용 바이오 샘플 채취 및 토출 장치에 관한 것으로서, 관 형태를 가지며, 일측 끝단의 샘플 주입구로부터 소정 거리 이격된 위치에 형성된 개구부를 포함하는 유체 채널; 상기 유체 채널의 타측 끝단에 결합되며, 상기 유체 채널에 인입되어 채취된 샘플의 토출을 조절하는 조절부를 포함한다. 본 발명에 따르면, 일정한 양의 샘플을 용이하게 채취할 수 있다. 또한, 샘플 채취 장치의 구조가 간단하므로, 저렴한 비용으로 일회용 장치로 제작이 가능하다.
Abstract:
PURPOSE: A liquid sample analysis chip reading system, an analysis method using thereof, and a ubiquitous reading system are provided to effectively obtain the optical sensing result accurately, and to receive or transfer the optical sensing result to a remote site. CONSTITUTION: A ubiquitous liquid sample analysis chip reading system(100) comprises the following; an analysis chip(210) including three sensors applied with the same samples; a lighting-emitting area(132) including three light sources emitting each colors; three light guide paths; a photo diode(134) including three light receiving devices; a controller(118) for analyzing the electric signal transformed by the photo diode; a display unit(120) displaying the result from the controller; and a communication unit for transferring the result.