Abstract: Method for making a coating on a surface of a substrate are described herein. The methods include applying a mixture to a surface of a substrate while maintaining the substrate at an elevated temperature. The mixture includes a particulate material and a proteinaceous material.

Abstract: Described herein are polypeptides, compositions, kits, and analyte detection systems for the detection of the presence or absence of small molecules (e.g. histamine and/or histidine) in a test sample.

Abstract: Embodiments of various aspects described herein are directed to assays and devices for detecting a target molecule in a sample. In particular, there is described a lateral assay comprising a plurality of serially oriented capture zones, where each capture zone independently comprises an immobilized competitive molecule on a lateral flow matrix. The immobilized competitive molecule and the analyte competitively bind with a capture agent capable of binding the analyte.

Abstract: This disclosure is generally directed to electrochemical readout of rapid diagnostics related to use of CRISPR effector systems. In one aspect, the disclosure provides a nucleic acid detection system. Generally, the system comprises: (1) a detection CRISPR system comprising an effector protein and one or more guide nucleic acid (gNA) strands designed to bind to corresponding target nucleic acid molecules; (2) an effector strand and (3) an electrode.

Abstract: Embodiments of various aspects described herein are directed to methods, compositions, kits for detecting a target molecule in a sample. In particular, there is described herein a multivalent approach which provides an efficient method for detection of small molecules and screening of binding molecules (e.g., antibodies). The multivalent approach uses two or more small molecules in a domain that is attached to a substrate through a linking group. The multivalent domain is free to extend, e.g., into a solution, for presentation to a binding compound such as an antibody.

Abstract: Carbon nanotubes or graphene combined with proteinaceous material forming compositions that can be coated on surfaces are described. For example, the described compositions can be used as a coating on an electrode. The coatings can be functionalized with capture agents, targeting specific analytes. In addition to being conductive, the coatings prevent fouling and passivation of the electrodes by non-specific binding. This allows the coated electrodes to be used in complex matrices such as can be found in biological fluids and tissues. The coated electrodes can be regenerated and reused repeatedly.