公开(公告)号：US6090251A

公开(公告)日：2000-07-18

申请号：US870944

申请日：1997-06-06

Applicant: Steven A. Sundberg ,  J. Wallace Parce ,  Calvin Y. H. Chow

Inventor： Steven A. Sundberg ,  J. Wallace Parce ,  Calvin Y. H. Chow

IPC: B01J19/00 ,  B01L3/00 ,  B01L3/02 ,  G01N27/447 ,  G01N35/00 ,  G01N35/10 ,  G01N27/26

CPC classification number: G01N27/44791 ,  B01J19/0093 ,  B01L3/0244 ,  B01L3/0262 ,  B01L3/5025 ,  B01L3/50255 ,  B01L3/5027 ,  B01L3/502715 ,  B01L3/50273 ,  G01N27/44743 ,  B01J2219/00783 ,  B01J2219/00826 ,  B01J2219/00831 ,  B01J2219/00833 ,  B01J2219/00853 ,  B01J2219/00891 ,  B01J2219/00909 ,  B01L2200/027 ,  B01L2300/0681 ,  B01L2300/0816 ,  B01L2300/0819 ,  B01L2300/0864 ,  B01L2400/0406 ,  B01L2400/0418 ,  B01L2400/0421 ,  B01L2400/0487 ,  B01L2400/0688 ,  B01L3/502723 ,  B01L3/502753 ,  G01N2035/00237 ,  G01N2035/1037 ,  Y10T436/25125 ,  Y10T436/25375 ,  Y10T436/2575

Abstract: Fluid introduction is facilitated through the use of a port which extends entirely through a microfluidic substrate. Capillary forces can be used to retain the fluid within the port, and a series of samples or other fluids may be introduced through a single port by sequentially blowing the fluid out through the substrate and replacing the removed fluid with an alternate fluid, or by displacing the fluid in part with additional fluid. In another aspect, microfluidic substrates have channels which varying in cross-sectional dimension so that capillary action spreads a fluid only within a limited portion of the channel network. In yet another aspect, the introduction ports may include a multiplicity of very small channels leading from the port to a fluid channel, so as to filter out particles or other contaminants which might otherwise block the channel at the junction between the channel and the introduction port.

公开(公告)号：US6036927A

公开(公告)日：2000-03-14

申请号：US898097

申请日：1997-07-22

Applicant: Dilip K. Chatterjee ,  Syamal K. Ghosh ,  Edward P. Furlani

Inventor： Dilip K. Chatterjee ,  Syamal K. Ghosh ,  Edward P. Furlani

IPC: B01F5/06 ,  B01F13/00 ,  B01J19/00 ,  B01J8/02

CPC classification number: B01F5/0691 ,  B01F13/0059 ,  B01F13/0093 ,  B01F5/0682 ,  B01J19/0093 ,  B01J2219/00783 ,  B01J2219/00824 ,  B01J2219/00835 ,  B01J2219/00844 ,  B01J2219/00873 ,  B01J2219/00889 ,  B01J2219/00909 ,  Y10S366/03

Abstract: An integrated micro-ceramic chemical plant having a unitary ceramic body formed from multiple ceramic layers in the green state which are sintered together includes a reaction chamber and a first passage for providing communication with the reaction chamber so that two or more fluids may be delivered to such reaction chamber for reaction, and the unitary ceramic body defining a catalytic bed in the reaction chamber, such catalytic bed being formed of micro-porous ceramic impregnated with at least one catalyst for promoting the reaction in the reaction chamber to produce reaction products; and the unitary ceramic body defining a filtration channel connected to the reaction chamber including filters disposed in such filtration channel for separating the reaction products so as to retrieve desired reaction products.

Abstract translation: 具有由生坯状态的多个陶瓷层形成的一体陶瓷体的一体化微陶瓷化工厂，其一起烧结在一起，包括：反应室和用于与反应室连通的第一通道，使得可以将两种或更多种流体输送到 这种用于反应的反应室，并且整体陶瓷体在反应室中限定催化床，该催化床由浸渍有至少一种用于促进反应室中的反应产生反应产物的至少一种催化剂的微孔陶瓷形成; 并且所述单一陶瓷体限定连接到所述反应室的过滤通道，所述过滤通道包括设置在所述过滤通道中的过滤器，用于分离所述反应产物以便取回所需的反应产物。