发明名称 DNA sequencing using multiple metal layer structure with organic coatings forming transient bonding to DNA bases
摘要 A technique for nanodevice is provided. A reservoir is filled with an ionic fluid. A membrane separates the reservoir, and the membrane includes electrode layers separated by insulating layers in which the electrode layers have an organic coating. A nanopore is formed through the membrane, and the organic coating on the electrode layers forms transient bonds to a base of a molecule in the nanopore. When a first voltage is applied to the electrode layers a tunneling current is generated by the base in the nanopore, and the tunneling current travels through the transient bonds formed to the base to be measured as a current signature for distinguishing the base.
申请公布号 US8764968(B2) 申请公布日期 2014.07.01
申请号 US201213607070 申请日期 2012.09.07
申请人 International Business Machines Corporation 发明人 Afzali-Ardakani Ali;Harrer Stefan;Luan Binquan;Martyna Glenn J.;Peng Hongbo;Rossnagel Stephen M.;Stolovitzky Gustavo A.;Waggoner Philip S.;Walker George F.
分类号 G01N27/327 主分类号 G01N27/327
代理机构 Cantor Colburn LLP 代理人 Cantor Colburn LLP ;Alexanian Vazken
主权项 1. A method for controlling a molecule in a nanodevice, comprising: filling a reservoir with ionic fluid; configuring a membrane to separate the reservoir, the membrane comprises electrode layers separated by insulating layers in which the electrode layers have an organic coating; forming a nanopore through the membrane, the organic coating on the electrode layers forms transient bonds to a base of the molecule in the nanopore; wherein, when a first voltage is applied to the electrode layers, a tunneling current is generated by the base in the nanopore, such that the tunneling current travels through the transient bonds formed to the base to be measured as a current signature for distinguishing the base; and breaking the transient bonds of the organic coating by applying an electric field above a threshold for breaking the transient bonds; wherein to attach to the electrode layers, the organic coating includes a selection from thiols, isocyanides, diazonium salts, phosphonic acid, hydroxamic acid, and resorcinol based on a type of material of the electrode layers; and wherein to form the transient bonds with the base, the organic coating includes a selection from alcohols, carboxylic acids, carboxamides, sulfonamides, and sulfonic acids.
地址 Armonk NY US