Abstract: Apparatus and methods for extracellular vesicle enrichment are described in which apparatus may be used to create plasma preparations that are enriched in EV-containing fluid sample. Generally, one variation of a method may generally comprise contacting the fluid sample with a plurality of absorbent chromatographic beads to concentrate EVs from the fluid sample, and separating the beads from the fluid sample.

Abstract: Methods, systems, and devices are described for antenna positioning with an eccentric tilt pointing mechanism. For example, a system in accordance with the present disclosure may include a base structure and an intermediate structure that is rotatably coupled with the base structure about a first axis (e.g., a tilt axis). The system may also include a positioning system that is coupled with the intermediate structure and configured to orient an antenna boresight about at least two angular degrees of freedom with respect to the intermediate structure (e.g., in an elevation-over-azimuth configuration). The system may also include an actuator between the base structure and the intermediate structure that is configured to set, change, or maintain an angle between the base structure and the intermediate structure, which, in some examples, may include a rotation of an eccentric element based on a predicted path of a target device.

Abstract: Methods, systems, and devices are described for antenna positioning with an eccentric tilt pointing mechanism. For example, a system in accordance with the present disclosure may include a base structure and an intermediate structure that is rotatably coupled with the base structure about a first axis (e.g., a tilt axis). The system may also include a positioning system that is coupled with the intermediate structure and configured to orient an antenna boresight about at least two angular degrees of freedom with respect to the intermediate structure (e.g., in an elevation-over-azimuth configuration). The system may also include an actuator between the base structure and the intermediate structure that is configured to set, change, or maintain an angle between the base structure and the intermediate structure, which, in some examples, may include a rotation of an eccentric element based on a predicted path of a target device.

Abstract: Methods, systems, and devices are described for antenna positioning with an eccentric tilt pointing mechanism. For example, a system in accordance with the present disclosure may include a base structure and an intermediate structure that is rotatably coupled with the base structure about a first axis (e.g., a tilt axis). The system may also include a positioning system that is coupled with the intermediate structure and configured to orient an antenna boresight about at least two angular degrees of freedom with respect to the intermediate structure (e.g., in an elevation-over-azimuth configuration). The system may also include an actuator between the base structure and the intermediate structure that is configured to set, change, or maintain an angle between the base structure and the intermediate structure, which, in some examples, may include a rotation of an eccentric element based on a predicted path of a target device.