The present invention generally relates, in some aspects, to systems and methods for making and using sensors or other devices, such as optical components. One aspect is generally directed to a sensor or other device comprising a nanometer-sized portion. In some embodiments, the sensor can be used to determine various characteristics such as temperature, humidity, an electric field, a magnetic field, an analyte, or the like. For instance, in one embodiment, a portion of a sensor device may be inserted into a cell and used to study the cell, e.g., using optical techniques such as surface plasma resonance. In some embodiments, such sensors or other devices may comprise metal, glass, or other materials, which can be prepared using etching or other techniques.

A personal locator beacon system has a personal locator beacon and a biometrics monitor. The personal locator beacon includes a first microprocessor, a first global positioning subsystem coupled to the first microprocessor, a first low energy transceiver coupled to the first microprocessor, and a first low energy antennae coupled to the first low energy transceiver. The biometrics monitor includes a second microprocessor, a second low energy transceiver coupled to the second microprocessor, a second low energy antennae coupled to the second low energy transceiver, and one or more nanosensors.

The present invention provides an improved breath analyzer and breath test method to determine the presence of disease in humans, including but not limited to, the bacterium H. pylori in a subjects digestive tract. In certain embodiments, the present invention provides a universal breath testing platform and methods of testing for diseases of the gastrointestinal tract, the liver, the kidneys, and the lungs, along with testing for cancer, infections, and metabolic diseases.

Nano-node sunscreen described herein enables significantly improved health monitoring and treatment of sun-related issues by utilizing internal (in-body) mechanisms and information and external mechanisms and information.

The present disclosure generally relates to pressure detection technology, and in particular, to a pressure sensor, a method of fabricating a pressure sensor, and a pressure detecting device. The pressure sensor may include a flexible nanopaper, and a graphene film on one side of the flexible nanopaper.

Provided are tissue-mounted devices and methods for monitoring a thermal transport property (e.g., thermal conductivity, thermal diffusivity, heat capacity) of tissue, such as skin. The devices conformally mount to the tissue and have one or more thermal actuators and a plurality of sensors. The actuator applies heat to the tissue and the sensors to detect a spatio temporal distribution of a physiological tissue parameter or physical property resulting from the heating. This spatio temporal information may be correlated with a rate, velocity and/or direction of blood flow, the presence of a vascular occlusion, circulation changes due to inflammation, hydration level and other physiological parameters.

A biomedical electrode of the present invention includes: a plate-shaped support portion; an elastic pillar portion that is provided on a first surface of the plate-shaped support portion; a conductive resin layer that is formed to cover a distal end of the elastic pillar portion; and a conductive wire that is electrically connected to the conductive resin layer and is arranged in the elastic pillar portion from a distal end side toward a base end side.

A system for detecting analytes in a biological subject, the system including at least one substrate including a plurality of microstructures configured to breach a stratum corneum of the subject, and wherein the one or more microstructures are responsive to a presence, absence, level or concentration of analytes to cause a change in appearance thereby indicating that a presence, absence, level or concentration of analytes has been detected.

An electroactive photonic polymer sensing device includes an imaging component that uses photonic energy to generate a photocurrent that represents a molecular parameter, wherein the imaging component includes a photosensitive material and at least one of a laser diode and/or photodiode; and a memory component that stores a representation of the molecular parameter, wherein the memory component includes at least one of a protein, vitamin, lipid, carbon allotrope, carbon tetra fluoride. A method of sensing polymers using an electroactive photonic sensing device includes converting, using an imaging component, photonic energy into electrochemical energy to generate a photocurrent that represents a molecular parameter, wherein the imaging device includes a photosensitive material and at least one of a laser diode and/or photodiode; and storing, using a memory component, a representation of the molecular parameter, wherein the memory component includes at least one of a vitamin, lipid, carbon allotrope, carbon tetra fluoride.

A wireless sensor platform design and a single walled carbon nanotube/ionic liquid-based chemidosimeter system can incorporated into a highly sensitive and selective chemical hazard badge that can dosimetrically detect an analyte down to a sub parts-per-million concentration.