摘要:
A nanopore electrical sensor is provided. The sensor has layered structure, including a substrate (1), the first insulating layer (2), a symmetrical electrode (3) and the second insulating layer (5) from bottom to top in turn. A nanopore (6) is provided in the center of the substrate (1), the first insulating layer (2), the symmetrical electrode (3) and the second insulating layer (5). The thickness of the symmetrical electrode can be controlled between 0.3 nm and 0.7 nm so as to meet the resolution requirements for detecting a single base in a single-stranded DNA. Thus the sensor is suitable for gene sequencing. The present invention overcomes current technical insufficiency to integrate a nanoelectrode with a nanopore and the method to prepare the nanoelectrode is simple.
摘要:
A nanopore sensor comprises second electrophoresis electrode or micropump, second fluidic reservoir, second micro-nanometer separation channel, substrate, sub-nanometer-thick functional layer, first micro-nanometer separation channel, first electrophoresis electrode or micropump, and electrophoresis electrode or micropump that are sequentially assembled. An opening and a nanopore are provided through the substrate and the sub-nanometer-thick functional layer, respectively. A first electrode for measuring ionic current is provided in the first micro-nanometer separation channel, and a second electrode for measuring ionic current is provide in the second micro-nanometer separation channel. The present invention provides a simple method to prepare a sub-nanometer functional layer having a nanopore extending through the sub-nanometer-thick functional layer. The pore size is comparable to the spacing between two adjacent bases in a DNA strand required for single-base resolution sequencing. The shape of nanopore overcomes nucleotide conformation effect on the identification as bases translocate through the nanopore.
摘要:
A nanopore sensor comprises second electrophoresis electrode or micropump, second fluidic reservoir, second micro-nanometer separation channel, substrate, sub-nanometer-thick functional layer, first micro-nanometer separation channel, first electrophoresis electrode or micropump, and first electrophoresis electrode or micropump that are sequentially assembled. An opening and a nanopore are provided through the substrate and the sub-nanometer-thick functional layer, respectively. A first electrode for measuring ionic current is provided in the first micro-nanometer separation channel, and a second electrode for measuring ionic current is provide in the second micro-nanometer separation channel. The present invention provides a simple method to prepare a sub-nanometer functional layer having a nanopore extending through the sub-nanometer-thick functional layer. The pore size is comparable to the spacing between two adjacent bases in a DNA strand required for single-base resolution sequencing. The shape of nanopore overcomes nucleotide conformation effect on the identification as bases translocate through the nanopore.
摘要:
A high-resolution biosensor for analysis of biomolecules is provided. The high-resolution biosensor comprises a functional unit comprising a conducting material with an atomic-scale thickness and a micro-nano fluidic system unit. The functional unit is capable of achieving a resolution required to detect a characteristic of individual biomolecule, and the micro-nano fluidic system unit is capable of controlling the movement and conformation of the biomolecule investigated. The functional unit comprises a first insulating layer, conducting functional layer, a second insulating layer, and a nanopore extending through the full thickness of the functional unit. The micro-nano fluidic system unit comprises a first electrophoresis electrode or micropump, a first fluidic reservoir, a second fluidic reservoir, a second electrophoresis electrode or micropump, and micro-nanometer separation channels. The nanopore connects to the micro-nanometer separation channels. Interactions between the biomolecule and conducting functional layer occur as the biomolecule translocates through the nanopore of the functional unit.
摘要:
The invention provides a method and device for auto-generating GOOSE signal connection topology from substation level based on IEC61850 standard. The method comprises the following steps: import substation configuration language (SCL) file; search all GOOSE input and output signals under each access point; match the output signals to the input signals; and generate GOOSE signal connection topology based on the result of said matching. The device comprises an importing module for importing substation configuration language file; a GOOSE signal analyzer for searching all of GOOSE input and output signals under each access point, and matching said GOOSE output signals to said GOOSE input signals; and topology data module for generating GOOSE signal connection topology based on said matching. The device comprises a storage module. The storage module comprises an input dataset for storing GOOSE input signals and an output dataset for storing GOOSE output signals and their matching input signals.
摘要:
The invention provides a method and device for auto-generating GOOSE signal connection topology from substation level based on IEC61850 standard. The method comprises the following steps: import substation configuration language (SCL) file; search all GOOSE input and output signals under each access point; match the output signals to the input signals; and generate GOOSE signal connection topology based on the result of said matching. The device comprises an importing module for importing substation configuration language file; a GOOSE signal analyzer for searching all of GOOSE input and output signals under each access point, and matching said GOOSE output signals to said GOOSE input signals; and topology data module for generating GOOSE signal connection topology based on said matching. The device comprises a storage module. The storage module comprises an input dataset for storing GOOSE input signals and an output dataset for storing GOOSE output signals and their matching input signals.