Abstract: The present application discloses a method of identifying and characterising intact pathogens in a sample using a fluorescence imaging system, in particular for characterising bacteria and viruses, and associated systems and kits for implementing the imethod. The method involves incubating a sample with fluorescent probes from at least two of the following categories: a fluorescent probe for binding to a pathogen surface carbohydrate; a nucleic acid stain; and a membrane stain. The sample is then imaged using fluorescence imaging apparatus to detect candidate objects, and the fluorescence characteristics of the candidate objects used to identify whether the object is a pathogen and, if so, the type of pathogen. Particularly preferred implementations employ flow to improve data acquisition, and machine learning classification algorithms to distinguish different pathogen types.

Abstract: Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a charge transport material having the formula where Y comprises an aromatic heterocyclic group; X is a bond or a linking group; E comprises a reactive ring group or a reactive functional group; and R1, R2, R3, and R4 comprise, each independently, H, an alkyl group, an acyl group, an ether group, an alkenyl group, an alkynyl group, a heterocyclic group, an aromatic group, or a part of a ring group; and (b) a charge generating compound. Corresponding electrophotographic apparatuses, electrophotographic imaging methods, and bridged charge transport materials derived form the charge transport material above are also described.

Abstract: Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a charge transport material having the formula where Y comprises an aromatic heterocyclic group; X is a bond or a linking group; E comprises a reactive ring group or a reactive functional group; and R1, R2, R3, and R4 comprise, each independently, H, an alkyl group, an acyl group, an ether group, an alkenyl group, an alkynyl group, a heterocyclic group, an aromatic group, or a part of a ring group; and (b) a charge generating compound. Corresponding electrophotographic apparatuses, electrophotographic imaging methods, and bridged charge transport materials derived form the charge transport material above are also described.