摘要:
A triple sensor structured for simultaneous measurement of glucose, oxygen, and pH. The sensor components are in thin film states such as sensing films or membranes, with a glucose probe associated with emission of radiation in the blue part of the spectrum, an oxygen probe associated with radiation in red portion of the spectrum, and a pH probe—with a green portion of the spectrum. The optical probes are chemically grafted or immobilized in a suitable polymer matrix, alleviating the leaching of the probes from the matrix, improving the thin film sensing stability, and enabling the repeatable use of the same sensing films.
摘要:
An integrated technological platform enabling real-time quantitative multiparameter metabolic profiling, utilizing either or both of extra and intracellular optical sensors, individually or simultaneously. A scalable embedded micropocket array structure, generally fabricated on fused silica substrates, facilitates the integration of multiple, spatially separated extracellular sensors for multiparameter analysis in a container formed with the use of an activation mechanism forming part of a device configured to hold the container during the measurements. The creation of hermetically sealed microchambers is carried out with a pneumatically and/or mechanically and/or electromechanically driven device that is “floating” within the holding device and that is optionally equipped with a vacuum/suction mechanism to hold a component of the container at its surface.
摘要:
The present disclosure relates to an optical luminescence dual sensor comprising a polymerized form of a probe for sensing pH; a polymerized form of a probe for sensing oxygen; a polymerized form of an internal reference probe; and a matrix. The present disclosure also relates to methods of preparing an optical luminescence dual sensor and methods of using them.
摘要:
A triple sensor structured for simultaneous measurement of glucose, oxygen, and pH. The sensor components are in thin film states such as sensing films or membranes, with a glucose probe associated with emission of radiation in the blue part of the spectrum, an oxygen probe associated with radiation in red portion of the spectrum, and a pH probe—with a green portion of the spectrum. The optical probes are chemically grafted or immobilized in a suitable polymer matrix, alleviating the leaching of the probes from the matrix, improving the thin film sensing stability, and enabling the repeatable use of the same sensing films.
摘要:
This disclosure relates generally to potassium ion sensors and monomers derived from such sensors. The disclosure also provides for polymers (e.g., random copolymers, nanoparticles, polymer thin films, and sensors) having polymerized monomeric potassium ion sensors as described herein. These compounds and polymers are useful for measuring intracellular and extracellular potassium ion concentrations.
摘要:
This disclosure relates generally to potassium ion sensors and monomers derived from such sensors. The disclosure also provides for polymers (e.g., random copolymers, nanoparticles, polymer thin films, and sensors) having polymerized monomeric potassium ion sensors as described herein. These compounds and polymers are useful for measuring intracellular and extracellular potassium ion concentrations.
摘要:
The present invention provides an SPR system and corresponding methods of use, for determining the presence or concentration of tumor-associated antigens in cancer patient samples. The SPR system may have multiple channels, with each channel having operably affixed thereto an antibody specific for a tumor-associated antigen, so as to allow detection of multiple tumor-associated antigens simultaneously. When a biological sample from a patient is applied to the SPR system, the presence of two or more tumor-associated antigens can be determined by measuring an SPR signal shift from each channel. The SPR system may detect the presence or concentration of a tumor-associated carbohydrate antigen, where the sensor surface contains affixed thereto an antibody specific for the glycosyl epitope, as well as an antibody specific for the polypeptide to which the carbohydrate antigen is naturally associated in cancer patients.