Abstract: Aspects of the disclosure include a natural language processing model by which topics of interest within a text are identified, such as by a predictive model that infers (e.g., based on scores associated with a text) a topic of interest associated with the text. The computer system may train or configure the prediction model, such as a machine learning model, to facilitate identification of topics of interest based on inputs, like one or more chunks of text, such as by keywords or phrases or combinations of keywords and associated metrics for nearness or frequency. The computer system may determine a measure of predicted impactfulness of the content item in relation to a topic of interest identified for the content item and determine whether to generate a notification transmitted to client devices of users having indicated the topic as of interest.

Abstract: A sensor for detecting of an analyte in a solution phase comprises a plurality of functionalised silver nanoplates wherein a functionalising agent is directly bonded to the surfaces of the nanoplates. The nanoplates provide a detectable wavelength shift change in their local surface plasmon resonance spectrum in response to the binding of an analyte. Two or more of the nanoplates may be electromagnetically coupled.