摘要:
A method for applying membrane lipids to a substrate includes providing a substrate and an ink reservoir having an ink including a membrane lipid. The tip of a scanning probe microscope is dipped into the ink so as to dispose the membrane lipid on the tip. The tip of the scanning probe microscope is brought into contact with a surface of the substrate. The tip is moved over regions of the surface so that the membrane lipid migrates from the tip of the scanning probe microscope onto the surface of the substrate in the regions and the membrane lipid organizes itself in the regions in a form of a single lipid layer or in a form of one or a plurality of mutually superposed lipid bilayers. The tip is removed from the surface of the substrate.
摘要:
The present invention provides a self-sensing tweezer device for micro and nano-scale manipulation, assembly, and surface modification, including: one or more elongated beams disposed in a first configuration; one or more oscillators coupled to the one or more elongated beams, wherein the one or more oscillators are operable for selectively oscillating the one or more elongated beams to form one or more “virtual” probe tips; and an actuator coupled to the one or more elongated beams, wherein the actuator is operable for selectively actuating the one or more elongated beams from the first configuration to a second configuration.
摘要:
This invention relates generally to carbon fiber produced from fullerene nanotube arrays. In one embodiment, the present invention involves a macroscopic carbon fiber comprising at least 106 fullerene nanotubes in generally parallel orientation.
摘要:
A method and apparatus for determining statistical characteristics of nano-particles includes distributing the nano-particles over a surface and then determining properties of the nano-particles by automatic measurement of multiple particles or by a measurement that determines properties of multiple particles at one time, without manipulating individual nano-particles.
摘要:
A scanning probe microscope has a probe needle and a control section that controls relative scanning movement between the probe needle and a surface of a sample in at least one direction parallel to the sample surface and controls relative movement between the probe needle and the sample surface in a direction perpendicular to the sample surface. A vibration source vibrates the probe needle at a vibrating frequency relative to the sample surface. An approach/separation drive section causes the probe needle to relatively approach to and separate from the sample surface at a predetermined distance while the probe needle is vibrated at the vibrating frequency relative to the sample surface by the vibration source. A detection section detects a rate of change in a vibration state of the probe needle in accordance with a distance between the probe needle and the sample surface. An observation section gathers observation data from the sample surface when the rate of change in the vibration state of the probe needle detected by the detection section has exceeded a preselected threshold value.
摘要:
Characterizing dielectric surfaces by detecting electron tunneling. An apparatus includes an atomic force probe. A mechanical actuator is connected to the atomic force probe. A mechanical modulator is connected to the mechanical actuator. The mechanical modulator modulates the mechanical actuator and the atomic force probe at the resonant frequency of the atomic force probe. An electrical modulator is connected to the atomic force probe. A feedback sensing circuit is connected to the mechanical modulator to detect movement of the atomic force probe and provide information about the movement of the atomic force probe to the mechanical modulator allowing the mechanical modulator to modulate the atomic force probe at the resonant frequency of the atomic force probe as the resonant frequency of the atomic force probe changes. An FM detector is connected to the feedback circuit detects changes in the resonant frequency of the atomic force probe.
摘要:
This invention relates generally to a method for producing fullerene nanotube catalyst supports and compositions thereof. In one embodiment, fullerene nanotubes or fullerene nanotube structures can be employed as the support material. A transition metal catalyst is added to the fullerene nanotubes. In a preferred embodiment, the catalyst metal cluster is deposited on the open nanotube end by a docking process that insures optimum location for the subsequent growth reaction. The metal atoms may be subjected to reductive conditions.
摘要:
The present invention is a method and apparatus for achieving high work output per unit volume in micro-robotic actuators, and in particular TiNi actuators. Such actuators are attractive as a means of powering nano-robotic movement, and are being developed for manipulation of structures at near the molecular scale. In these very small devices (one micron scale), one means of delivery of energy is by electron beams. Movement of mechanical structures a few microns in extent has been demonstrated in a scanning electron microscope. Results of these and subsequent experiments will be described, with a description of potential structures for fabricating moving a microscopic x-y stage.
摘要:
The present invention is a method and apparatus for achieving high work output per unit volume in micro-robotic actuators, and in particular TiNi actuators. Such actuators are attractive as a means of powering nano-robotic movement, and are being developed for manipulation of structures at near the molecular scale. In these very small devices (one micron scale), one means of delivery of energy is by electron beams. Movement of mechanical structures a few microns in extent has been demonstrated in a scanning electron microscope. Results of these and subsequent experiments will be described, with a description of potential structures for fabricating moving a microscopic x-y stage.
摘要:
An apparatus is provided for gripping nano-scale objects, wherein the apparatus includes a probe including a base portion and a terminal portion. First and second nanotubes are secured to the base portion of the probe, wherein each of the first and second nanotubes include a protruding portion which extends past the base portion and the terminal portion of the probe. First and second electrodes are formed on the base portion of the probe and electrically connected to the first and second nanotubes. A third electrode is disposed on the terminal portion of the probe. A control circuit applies a voltage to the first, second and third electrodes to close the protruding portions of the first and second nanotubes by charging the first and second nanotubes to a first polarity and charging the third electrode to a second polarity opposite to the first polarity.