The present invention relates to a biosensor for determining an analyte comprising a substrate, a working electrode comprising an electrically conductive pad in conductive contact with a mediator layer, and an enzyme layer in diffusion-enabling contact with said mediator layer, wherein said mediator layer is an electrodeposited mediator layer, and wherein said mediator layer comprises, in an embodiment consists of, an electrocatalytic agent. The present invention further relates to a method for manufacturing a biosensor, comprising providing a substrate having at least one conductive pad, electrodepositing a mediator layer onto at least part of said conductive pad, wherein said mediator layer comprises, in an embodiment consists of, an electrocatalytic agent, and depositing an enzyme layer onto at least part of said mediator layer. Moreover, the present invention relates to uses and methods related to the biosensor of the present invention.

A method and a production device for producing a test element are disclosed. The method comprises providing in a transport step a continuous substrate tape, wherein the tape is transported in a transport direction parallel to a direction of extension of the continuous substrate tape; applying in an adhesive application step at least one continuous adhesive strip, wherein the strip is applied to the continuous substrate tape with a liquid adhesive and a slot coating process, and wherein the continuous adhesive strip is oriented parallel to the transport direction; applying in a cover element application step at least one cover element, wherein the at least one cover element is applied to the continuous adhesive strip, thereby securing the cover element to the continuous substrate tape; and individualizing in an individualization step the continuous substrate tape, wherein the tape is individualized into single test elements.

A biosensor for measuring a measuring object component contained in a sample includes a substrate having an upper surface on which a measurement region is formed, a spacer which has a cutout portion obtained by cutting out a part of the spacer and which is stacked on the upper surface so that the measurement region is located inside the cutout portion, and a cover which has an air hole obtained by cutting out a part of the cover and which is stacked on the spacer while covering the cutout portion.

The present disclosure provides apparatuses and methods for analyzing the presence of a target analyte. The apparatuses and methods of the present disclosure can be operated in a multiplexed format to perform various assays of clinical significance.

A system for detecting an infectious agent. The system has a microfluidic apparatus having a first port for receiving a sample and a second port; an electrochemical sensing structure for engaging the microfluidic apparatus and in fluid communication therewith for receiving the sample therefrom; and a bio-sensing apparatus having one or more circuitries for electrically coupling to the electrochemical sensing structure for detecting the infectious agent/analytes from the samples received thereon.

A sensor implanted in tissues and including a sensing layer is fabricated by mixing the signal transduction enzyme with non-reactive components including buffer salts and fillers, and spin coating the enzyme onto a substrate. The signal transduction enzyme is crosslinked by introducing the coated substrate in a vacuum chamber. In the chamber, a crosslinker evaporates and is deposited onto the enzyme, therefore crosslinking the enzyme.

A method for determining analytes includes lysing the red blood cells of a whole blood sample, oxidizing the free hemoglobin in the lysed sample, and cleaving FVH from the hemoglobin A1C to form an electrochemical test solution. In one aspect, a first portion of the electrochemical test solution is reacted with fructosyl peptide oxidase and a reduced ruthenium mediator to form a first reaction product. A first electrical property of the first reaction product is measured, the measurement being indicative of hemoglobin A1C in the blood sample. In another aspect, a second portion of the electrochemical test solution is reacted with ferrocyanide to form a second reaction product. A second electrical property of the second reaction product is measured, the measurement being indicative of total hemoglobin in the blood sample. Hemoglobin A1C, total hemoglobin, and % HbA1C are determined based on the first and second electrical properties.

A biosensor for measuring an electrical response from a biological sample. The biosensor includes a substrate, a passivation layer grown on a surface of the substrate, a patterned catalyst layer deposited on the passivation layer, and three electrodes grown on the patterned catalyst layer. The three electrodes include a working electrode, a counter electrode, and a reference electrode. The working electrode includes a first array of electrically conductive biocompatible nanostructures that is configured to be an attachment site for the biological sample. The counter electrode includes a second array of electrically conductive biocompatible nanostructures that is configured to acquire the electrical response from the working electrode. The reference electrode includes a third array of electrically conductive biocompatible nanostructures that is configured to adjust a specific voltage around the working and the counter electrodes.

Described herein are systems, assays, methods and compositions for identification of oxidase microbial redox-enzymes (MREs) specific to an analyte of interest from an environmental source. The technology relates to identification of analyte-responsive MREs that can quantify the concentration of a target analyte with high specificity and high sensitivity, for example, where the identified analyte-responsive redox-enzyme can be used to engineer an electrochemical biosensor.

A method for forming an enzymatic biosensor includes preparing an aqueous solution including an enzyme and photocurable components, depositing the aqueous solution on a surface of a working electrode of a substrate, illuminating the working electrode with ultraviolet (UV) light to cure the aqueous solution, and crosslinking the enzyme deposited on the working electrode with solution phase or vapor phase crosslinking after curing the aqueous solution.