Abstract: The invention is to devices and methods for rapid determination of analytes in liquid samples. The devices and methods incorporate a sample dilution feature and multiple immunosensors for performing a ratiometric immunoassay on a first analyte and a second analyte, for example, hemoglobin and hemoglobin A1c or albumin and glycosylated albumin. The devices are preferably capable of being used in the point-of-care diagnostic field.
Abstract: The invention is directed toward systems and methods for the formation of two dimensional monolayer structures of ordered biomacromolecules, such as viruses, atop cohesive polyelectrolyte multilayers to create functional thin films. Methods for the formation of such thin films are disclosed that involve an interdiffusion-induced assembly process of the biomacromolecules. The inventive systems provide a general platform for the systematic incorporation and assembly of organic, biological and inorganic materials and will enable many potential technological applications such as, for example, chemical and biological sensors, power devices and catalytic membranes.
Type:
Grant
Filed:
February 6, 2007
Date of Patent:
March 1, 2016
Assignee:
Massachusetts Institute of Technology
Inventors:
Pil J. Yoo, Ki Tae Nam, Jifa Qi, Soo-Kwan Lee, Juhyun Park, Angela M. Belcher, Paula T. Hammond-Cunningham
Abstract: Provided is a durable oxygen sensitive probe of sufficient strength to withstand direct tissue pressures in vivo, the probe comprising a sensor chamber within a biocompatible, gas-permeable membrane containing an oxygen sensitive analyte solution producing oxygen quenchable phosphorescence when excited. Further provided is a tissue oxygen detection and measurement system comprising the probe, and methods for use of the probe and the system to directly, rapidly and accurately measure tissue oxygen levels in a patient without reliance on blood vessels or fluid protection of the probe.
Type:
Grant
Filed:
January 4, 2007
Date of Patent:
June 2, 2015
Assignee:
The Trustees of the University of Pennslyvania
Abstract: Techniques for determining values for a metric of microscale interactions include determining a mesoscale metric for a plurality of mesoscale interaction types, wherein a value of the mesoscale metric for each mesoscale interaction type is based on a corresponding function of values of the microscale metric for the plurality of the microscale interaction types. A plurality of observations that indicate the values of the mesoscale metric are determined for the plurality of mesoscale interaction types. Values of the microscale metric are determined for the plurality of microscale interaction types based on the plurality of observations and the corresponding functions and compressed sensing.
Type:
Grant
Filed:
March 22, 2012
Date of Patent:
April 21, 2015
Assignee:
The Board of Trustees of the Leland Stanford Jr. University