摘要:
Systems, devices, methods, and compositions are described for providing an actively-controllable disinfecting implantable device configured to, for example, treat or prevent an infection in a biological subject.
摘要:
Methods of operating an internal combustion engine are disclosed that may include a first piston slidably disposed in a first cylinder having a first and a second closed end, and a first converter operable with the first cylinder. The first converter may be configured to convert mechanical energy to electrical energy, and vice versa. As a non-limiting example, such disclosed embodiments may be used to convert mechanical energy of the first piston to electrical energy during a power stroke, and to drive the first piston during one or more of an exhaust stroke, an intake stroke, or a compression stroke.
摘要:
Systems, devices, methods, and compositions are described for providing an actively-controllable disinfecting implantable device configured to, for example, treat or prevent an infection in a biological subject.
摘要:
In an embodiment, an internal combustion engine includes a first cylinder having a first piston and a second piston slidably disposed therein, an intake port arranged to admit a reactant into the first cylinder between the first and second pistons, and an exhaust port axially spaced from the intake port and arranged to exhaust a reaction product from the first cylinder. First and second converters are provided, which are operable with the corresponding first and second pistons, to convert mechanical energy of the first and second pistons to electrical energy and electrical energy to mechanical energy. A control system is provided that is coupled to the first and second converters. The control system is configured to control the application of electrical energy to the first and second converters to selectively position the first and second pistons during specific strokes of the engine cycle.
摘要:
Devices, compositions, and methods are described which provide a tubular nanostructure or a composite tubular nanostructure targeted to a lipid bilayer membrane. The tubular nanostructure includes a hydrophobic surface region flanked by two hydrophilic surface regions. The tubular nanostructure is configured to interact with a lipid bilayer membrane and form a pore in the lipid bilayer membrane. The tubular nanostructure may be targeted by including at least one ligand configured to bind to one or more cognates on the lipid bilayer membrane of a target cell.
摘要:
A method composition and system respond to ionizing, radiation to adjust biological activity. In some approaches the ionizing radiation is X-ray or extreme ultraviolet radiation that produces luminescent responses that induce biologically active responses.
摘要:
A method, composition and system respond to ionizing radiation to adjust biological activity. In some approaches the ionizing radiation is X-ray or extreme ultraviolet radiation that produces luminescent responses that induce biologically active responses.
摘要:
A method, composition and system respond to ionizing radiation to adjust biological activity. In some approaches the ionizing radiation is X-ray or extreme ultraviolet radiation that produces luminescent responses that induce biologically active responses.
摘要:
Methods of controlling the operation of a device traveling in a body tube tree, including sensing parameters from possible directions of travel and selecting the direction of travel based on the sensed parameters, implemented with a control system located partially or fully on the lumen traveling device. Various actions can be performed by the device for, e.g., medical or therapeutic purposes. Machine-readable media including instructions for performing the methods are also described.