The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 03, 2011
Filed:
Jun. 04, 2008
Seung Yun Yang, Kyungsangbuk-do, KR;
Sei Kwang Hahn, Gyeongsangbuk-Do, KR;
Jin Kon Kim, Gyeongsangbuk-Do, KR;
Jung-a Yang, Kyungsangbuk-do, KR;
Seung Yun Yang, Kyungsangbuk-do, KR;
Sei Kwang Hahn, Gyeongsangbuk-Do, KR;
Jin Kon Kim, Gyeongsangbuk-Do, KR;
Jung-A Yang, Kyungsangbuk-do, KR;
Postech Academy-Industry Foundation, Kyungsangbuk-do, KR;
Abstract
Provided are a nanoporous membrane including a support; a first separation layer with a plurality of first nano-sized pores and a first matrix; and a second separation layer having a plurality of second pores respectively corresponding to the plurality of first pores of the first separation layer and a second matrix, and formed on the first separation layer, wherein a density of the plurality of the first pores and the second pores is equal to or greater than 10/cm, and a diameter of each of the second pores is less than that of the corresponding first pore, a process of fabricating the same, and a device for a controlled release of biopharmaceuticals including the nanoporous membrane. The device for a controlled release of biopharmaceuticals including the nanoporous membrane can release biopharmaceuticals at a constant rate for a long period of time regardless of the concentration of the biopharmaceuticals including in pharmaceuticals, and high flex and selectivity.