Flexible biological pH sensor based on nano wire texture and preparation method thereof

Abstract

The invention discloses a flexible biological pH sensor based on nano wire texture and a preparation method thereof. The pH sensor comprises a flexible substrate, a micro channel electrode structure, an electrode lead, a nano wire texture sensitive layer, and an ion selectively penetrating membrane. Two opposite channel structures composed of electrodes are prepared on the flexible substrate through a template method. The electrodes are connected to the exterior through leads. A textured nano wire material is prepared in the channel areas of electrodes and is taken as the pH sensitive layer. The ion selectively penetrating membrane is covered on the surface of electrodes. The nano wire sensitive material is arranged on the substrate, the channel is composed of two electrodes, the electrodes are completely covered by the ion selectively penetrating membrane, the problems that an inorganic nonmetal nano wire is easily worn in a flexible wearable sensor and can be disturbed are solved, and the in-situ real-time measurement and analysis of human fluid pH value is realized.

Description

technical field

[0001] The invention belongs to the field of preparation of electrochemical sensors, and in particular relates to a nanowire texture-based flexible biological pH sensor and a preparation method thereof, which are used to realize in-situ real-time detection and analysis of human body fluids including sweat and blood, and to ensure The sensor is suitable for long-term wear and accurate work by the human body. Background technique

[0002] The high-efficiency and rapid detection characteristics of the new biosensor will bring about a new technological revolution in the fields of biomedicine, environmental detection, food, and pharmaceutical industries. Among them, the detection of pH value is a very important technical means in the application of biotechnology. For example, the rapid and accurate detection of pH value in human blood and urine is of great significance to the treatment and prevention of human diseases. However, the current pH testing methods, inc...

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