摘要:
There is provided a nanopore disposed in a support structure, with a fluidic connection between a first fluidic reservoir and an inlet to the nanopore and a second fluidic connection between a second fluidic reservoir and an outlet from the nanopore. A first ionic solution of a first buffer concentration is disposed in the first reservoir and a second ionic solution of a second buffer concentration, different than the first concentration, is disposed in the second reservoir, with the nanopore providing the sole path of fluidic communication between the first and second reservoirs. An electrical connection is disposed at a location in the nanopore sensor that develops an electrical signal indicative of electrical potential local to at least one site in the nanopore sensor as an object translocates through the nanopore between the two reservoirs.
摘要:
Electrical devices comprised of nanoscopic wires are described, along with methods of their manufacture and use. The nanoscopic wires can be nanotubes, preferably single-walled carbon nanotubes. They can be arranged in crossbar arrays using chemically patterned surfaces for direction, via chemical vapor deposition. Chemical vapor deposition also can be used to form nanotubes in arrays in the presence of directing electric fields, optionally in combination with self-assembled monolayer patterns. Bistable devices are described.
摘要:
A memory array comprising nanoscale wires (61-72) is disclosed. The nanoscale wiresare addressed by means of controllable regions (80, 82) axially and/or radiallydistributed along the nanoscale wires. In a one-dimensional embodiment, memory locations are defined by crossing points between nanoscale wires andmicroscale wires. In a two-dimensional emobdiment, memory locations (75) aredefined by crossing points between perpendicular nanoscale wires. In a three-dimensional embodiment, memory locations are defined by crossing pointsbetween nanoscale wires located in different vertical layers.
摘要:
Electrical devices comprised of nanowires are described, along with methods of their manufacture and use. The nanowires can be nanotubes and nanowires. The surface of the nanowires may be selectively functionalized. Nanodetector devices are described.
摘要:
There is provided a nanopore disposed in a support structure, with a fluidic connection between a first (cis) fluidic reservoir and an inlet to the nanopore and a second fluidic connection between a second (trans) fluidic reservoir and an outlet from the nanopore; the cis fluidic reservoir having a cis reservoir fluidic access resistance Rcis, or Rc, the trans fluidic reservoir having a trans reservoir fluidic access resistance Rtrans, or Rt, and the nanopore having a nanopore fluidic resistance Rpore, or Rp, wherein Rp is of the same order of magnitude as Rt and both Rp and Rt are at least an order of magnitude greater than Rc. As an embodiment a first ionic solution of a first buffer concentration is disposed in the first reservoir and a second ionic solution of a second buffer concentration, different than the first concentration, is disposed in the second reservoir, with the nanopore providing the sole path of fluidic communication between the first and second reservoirs. An electrical connection is disposed at a location in the nanopore sensor that develops an electrical signal indicative of electrical potential local to at least one site in the nanopore sensor as an object translocates through the nanopore between the two reservoirs.
摘要:
A solid state molecular sensor having an aperture extending through a thickness of a sensing region is configured with a sensing region thickness that corresponds to the characteristic extent of at least a component of a molecular species to be translocated through the aperture. A change in an electrical characteristic of the sensing region is measured during the molecular species translocation. The sensor can be configured as a field effect transistor molecular sensor. The sensing region can be a region of graphene including an aperture extending through a thickness of the graphene.
摘要:
Nanowires are disclosed which comprise transition metal oxides. The transition metal oxides may include oxides of group II, group III, group IV and lanthanide metals. Also disclosed are methods for making nanowires which comprise injecting decomposition agents into a solution comprising solvents and metallic alkoxide or metallic salt precursors.
摘要:
Electrical devices comprised of nanowires are described, along with methods of their manufacture and use. The nanowires can be nanotubes and nanowires. The surface of the nanowires may be selectively functionalized. Nanodetector devices are described.