公开(公告)号：US11041247B2

公开(公告)日：2021-06-22

申请号：US16781486

申请日：2020-02-04

Applicant: Northeastern University

Inventor： Pradeep Waduge ,  Swastik Kar ,  Meni Wanunu ,  Joseph Larkin ,  Ismail Bilgin

IPC: C25B9/23 ,  G01N33/487 ,  C01B32/186 ,  C12Q1/6869 ,  G01N27/447

Abstract: The invention provides methods for direct growth of low noise, atomically thin freestanding membranes of two-dimensional monocrystalline or polycrystalline materials, such as transition metal chalcogenides including molybdenum disulfide. The freestanding membranes are directly grown over an aperture by reacting two precursors in a chemical vapor deposition process carried out at atmospheric pressure. Membrane growth is preferentially over apertures in a thin sheet of solid state material. The resulting membranes are one or a few atomic layers thick and essentially free of defects. The membranes are useful for sequencing of biopolymers through nanopores.

公开(公告)号：US10550487B2

公开(公告)日：2020-02-04

申请号：US15552373

申请日：2015-11-25

Applicant: Northeastern University

Inventor： Pradeep Waduge ,  Swastik Kar ,  Meni Wanunu ,  Joseph Larkin ,  Ismail Bilgin

IPC: C25B9/10 ,  G01N33/487 ,  C01B32/186 ,  C12Q1/6869 ,  G01N27/447

Abstract: The invention provides methods for direct growth of low noise, atomically thin freestanding membranes of two-dimensional monocrystalline or polycrystalline materials, such as transition metal chalcogenides including molybdenum disulfide. The freestanding membranes are directly grown over an aperture by reacting two precursors in a chemical vapor deposition process carried out at atmospheric pressure. Membrane growth is preferentially over apertures in a thin sheet of solid state material. The resulting membranes are one or a few atomic layers thick and essentially free of defects. The membranes are useful for sequencing of biopolymers through nanopores.