A process of making sensors and sensor arrays that has the ability to manipulate of the morphology or flow of an applied drop or sample over the sensor array surface at any point in the patterning process and sensors and sensor arrays having increased sensitivity and limits of detection. In addition, said process can provided real time notification of any centerline deviation. Such production process can be adjusted in real time. Thus, large numbers of units can be made—even in millions of per day—with few if any out of specification units being produced. Such process does not require large-scale clean rooms and is easily configurable.

The invention relates to a microarray structure that may include a substrate material layer, a continuous three-dimensional (3D) surface layer on the substrate material layer that is capable of functionalisation for use as an array, and an inert material. The structure may include accurately defined and functionalisable isolated areas which are millimeter to nanometer in size. The functionalisable areas may be part of the continuous 3D surface layer and may be isolated by the inert material but interconnected within the structure by the continuous 3D surface layer.

The techniques relate to methods and apparatus for sensing an analyte. At least one sensor element is configured to sense an analyte, the at least one sensor element comprising a first portion and a second portion. A first current electrode is attached to the first portion and a second current electrode is attached to the second portion. A first measurement electrode is attached to the first portion and a second measurement electrode is attached to the second portion.

The present disclosure provides compositions and methods for acidic compositions for use in optimizing the genital microbiome of a user or sexual partners of that user. The compositions may comprise a prebiotic oligosaccharide, a metal co-factor, and an essential oil comprising bornyl acetate. The compositions support the genital microbiota and are useful for, for example, hydrating, lubricating, cleaning, and/or decreasing irritation or inflammation of the urogenital and/or anogenital region of a subject, and/or enhancing the beneficial genital microbiota of a subject. Such compositions are useful before, during, and/or after sexual and/or reproductive activity. Furthermore, the compositions may have minimal or beneficial effect on gametes.

Electrochemical sensors useful for detection of heavy metals are described. The electrochemical sensors can be made by forming a layer of graphene oxide on a working electrode, forming a layer of carbon nanotubes (CNTs) on the layer of graphene oxide, and forming a layer of gold nanostars on the layer of CNTs.

Nanostructured microelectrodes and biosensing devices incorporating the same are disclosed herein.

The present invention relates to methods for creating conductive nanojunctions using metalized or conductive polymer joined to a DNA nanowire in a nanodevice for chemosensing and biosensing.

A DNA sequencing device, and related methods, include a nanopore or nanochannel structure, and a nanoelectrode. The nanoelectrode includes electrode members having free ends exposed within the nanopore or nanochannel structure, an electrode gap defined between of the free ends, and plated portions formed on the free ends to provide a reduced sized for the electrode gap.

Improved methods of manufacturing highly sensitive and selective electrochemical biosensors are provided. The method may comprise washing the nanowell array electrodes of the biosensors with ferricyanide, preferably potassium ferricyanide. The method may also comprise washing the electrodes of the biosensors with methylene blue (i.e., methylthioninium chloride), either in addition to the ferricyanide and/or H2SO4 washing steps, or without the ferricyanide and/or H.sub.2SO.sub.4 washing steps.

A multiple functioning superconductive device was invented based on Toroidal Josephson Junction (FFTJJ) array with 3D-cage structure self-assembled organo-metallic superlattice membrane. The device not only mimics the structure and function of an activated Matrix Metalloproteinase-2 (MMP-2) protein, but also mimics the cylinder structure of the Heat Shock Protein (HSP60) protein, that works at room temperature under a normal atmosphere, and without external electromagnetic power applied. The device enabled direct rapid real-time monitoring atto-molarity concentration ATP in biological specimens and was able to define the anti-inflammatory and pro-inflammatory status revealed a transitional range of ATP concentration under antibody-free, tracer-free and label-free conditions.