公开(公告)号：US20230341302A1

公开(公告)日：2023-10-26

申请号：US18302248

申请日：2023-04-18

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Seokwoo Jeon ,  Byungyoon Chung ,  Kisun Kim

IPC: G01N1/40

CPC classification number: G01N1/405

Abstract: A disclosed micro pre-concentrator includes a base substrate having a trench, and a 3D nano-shell composite disposed in the trench and having pores that are ordered and connected to each other. The 3D nano-shell composite includes a 3D nano-shell support defined by a thin film extending three-dimensionally and a polymeric layer formed along a surface of the 3D nano-shell support. The micro pre-concentrator may increase adsorption amount of gas. In addition, since it may be uniformly heated in a short time, it is possible to release gas at a high density in a short time.