Abstract: The present disclosure provides an innovative biosensor system utilizing three-dimensional vertical graphene structures for highly sensitive analyte detection in field-deployable applications. The vertical graphene structures may be formed in-situ directly on the sensor substrate, potentially enabling on-site fabrication and customization. These structures, with their increased surface area and unique tree-like morphology, may offer improved binding sites for bioreceptors compared to conventional flat graphene sensors. This biosensor design may address limitations of existing biosensors by combining enhanced surface area, controlled sample handling, and advanced measurement techniques in a single, field-portable device. The potential for in-situ graphene formation may allow for rapid sensor deployment and adaptation. Additionally, the system's portability may enable on-site analysis in remote locations, potentially reducing the need for sample transport and laboratory-based testing.

Abstract: A disclosed system determines the elevation of an emulsion phase in a vessel. The system includes more than one source-detector pairs connected to the vessel and a computing device. Each of the source-detector pairs include a radioactive source and a radiometric detector, and are positioned at an elevation measured from the bottom of the vessel. The computing device is connected to the source-detector pairs, and is configured to identify the height of an emulsion phase using an upper boundary target density and a lower boundary target density. The height of the emulsion phase is identified by obtaining density readings from at least two of the source-detector pairs, calculating an upper boundary emulsion phase elevation and calculating a lower boundary emulsion phase elevation, each calculation using the density readings, and at least one of the upper boundary target density, and the lower boundary target density.

Abstract: Systems, devices, and methods for measuring one or more parameters at a tissue site of a patient are disclosed. The system can include a sensor that can be configured to measure a first physiological parameter. The physiological parameter can be associated with oxygenation of arterial blood. A second physiological parameter can be associated with respiration of the patient. The system can include a processor that can be configured to use the first and second physiological parameters to determine a waveform associated with the oxygenation of the arterial blood, and the processor can be configured to compensate for a signal artifact associated with motion of the tissue site.

Abstract: The present invention provides systems and methods for retrieving, modifying, and managing data in a database without knowing the underlying database schema. In preferred embodiments, the present invention provides a consistent Graphical User Interface (GUI) to allow an end user to interact with the underlying database without programming or writing Structured Query Language (SQL) or Hibernate Query Language (HQL) statements. The present invention improves upon existing database connectivity tools by adding a level of abstraction on top of the Open Database Connectivity (ODBC) or Java Database Connectivity (JDBC) and object/relational persistence and query service layers known in the art. In additional embodiments, the present invention provides an API to allow a computer program to interact with the underlying database, and allows the computer program to execute queries and integrate the results of these queries into the computer program's internal system.