Abstract: A electrical connector may include a receptacle housing and a plug housing. The receptacle housing may include an outer edge, a first protrusion, and a first recess. The plug housing may include an inner edge, a second protrusion shaped to interface with the first recess, and a second recess shaped to receive the first protrusion. The receptacle housing and the plug housing may be configured to rotate relative to each other between an unlocked orientation and a locked orientation. In the locked orientation, the first protrusion interfaces with the second recess to restrict rotational movement of the plug housing relative to the receptacle housing and the second protrusion interfaces with the first recess to restrict lateral movement of the receptacle housing relative to the plug housing.

Abstract: An apparatus for detecting pepsin comprising a solid support, and a peptide chain wherein the peptide chain is operatively configured to be cleaved by pepsin, and the peptide chain is disposed on a surface of the solid support.

Abstract: The present invention relates to a method of detecting the presence of an otolaryngologic pathogen in a biological sample, and a sensor device, sensor chip, and nucleic acid probes useful for detecting otolaryngologic pathogens.

Abstract: An apparatus for detecting pepsin comprising a solid support, and a peptide chain wherein the peptide chain is operatively configured to be cleaved by pepsin, and the peptide chain is disposed on a surface of the solid support.