A self-cleaning toilet is disclosed. The toilet includes a bowl adapted to receive excreta, a mechanism that uses a consumable to clean at least a portion of the toilet, a storage structure for storing the consumable, a sensor for detecting a property of the consumable, and a processor. The sensor detects a quantity of the consumable. The processor generates an alert if the quantity of consumable is below a predetermined level. The alert can include providing a maintenance alert, ordering more consumable, and enabling or disabling features of the toilet.

An analytical toilet is disclosed. The toilet includes a bowl for receiving excreta, a mechanism that uses a consumable for analyzing a sample of excreta, a storage structure for storing the consumable, a sensor that detects at least one property of the consumable, and a processor that generates an alert when the property is outside a predetermined parameter. The property the sensor detects can be used to determine at least one of the identity of the consumable, the quantity or supply of the consumable, or a property related to the suitability of the consumable.

In various embodiments, the present disclosure provides testers for detecting a bacterial infection and methods of production and uses thereof.

A system and method for detecting harmful substances within a consumable sample comprising: receiving a consumable sample at a first chamber of a test container; transforming the consumable sample into a homogenized sample upon processing of the consumable sample; delivering the homogenized sample to a second chamber of the test container, wherein the second chamber is configured to receive the homogenized sample comprises an outlet port; mixing the homogenized sample with a process reagent within the second chamber, thereby producing a dispersion; transmitting a volume of the dispersion to an analysis chamber, of the test container, configured to position a detection substrate proximal the port of the second chamber and comprising a detection window that enables detection of presence of the allergen; and detecting presence of the allergen within the consumable sample by way of an optical sensor configured to detect signals indicative of the allergen through the detection window.

A colorimetric sensor for detecting bacteria and/or viruses includes one or more layers having a photonic crystal structure, a functional layer comprising a nanomaterial capable of generating bacteria- and/or viruses-bioresponsive surface plasmon overlapping the one or more layers having the photonic crystal structure. The bacteria- and/or viruses-bioresponsive nanomaterial of the functional layer is doped with proteinic substances or antibodies acting as virus receptors, or the colorimetric sensor comprises a receptor layer comprising proteinic substances or antibodies acting as virus receptors. The functional layer and receptor layer overlap each other. Alternatively, or in addition to, the colorimetric sensor comprises a plasmonic nanostructured layer comprising nanostructures such to generate plasmonic colors, overlapping the one or more layers having the photonic crystal structure.

Enzyme-based diagnostic testing systems for detecting and quantifying at least one of the activity level or the concentration of an enzyme or a biochemical analyte in a biological sample. Such enzyme-based diagnostic testing systems can provide rapid, accurate, affordable laboratory-quality testing at the point of care. An enzyme-based diagnostic testing system may include a lateral-flow chromatographic assay cassette that is configured for assaying an amount or activity of an enzyme in a sample or for enzymatically determining the concentration of an enzyme substrate in a sample. Additionally, the enzyme-based diagnostic testing systems may include testing devices (e.g., a smartphone or a similar remote computing device) having data collection and data analysis capabilities. Such testing devices may also include automated data reporting and decision support.

In certain aspects, provided herein are methods and kits for detecting the presence of C. difficile in a biological sample. Also provided herein are methods of selecting of identifying a subject that would benefit from C. difficile treatment.

The present invention relates to methods and systems for testing for the presence of a material such as one or more analyte types within a sample and more particularly, for improved single enzyme-linked immunosorbent assay (sELISA) testing as well as other variants of single-enzyme linked molecular analysis (SELMA).

A coagulation test device for measuring clotting time and clot characteristics of a whole blood sample under different hemostatic conditions. Results of the test are used as an aid in management of patients with coagulopathy of unknown etiology in order to help the physician determine appropriate clinical action to arrest bleeding in a patient.

A disposable test kit comprising a base sheet; a sealing sheet having at least one sealed sample collection opening before use of the test kit; at least one test strip sealed between the base sheet and the sealing sheet before use of the test kit; and at least one top sheet layered over the sealing sheet before use of the test kit to keep the at least one sample collection opening sealed, the at least one top sheet further configured to be at least partially detached from the sealing sheet to open the at least one sample collection opening and expose a sample collection portion of the at least one test strip for receiving a fluid analyte thereon during use of the test kit.