Electrochemical biosensor based on nanocomposites-modified microneedle for real-time monitoring of pH value
To better monitor the physiological state of the human body,this paper proposes a biosensor development strategy based on nanocomposite-modified microneedles.Through sophisticated design and the construction of high-performance nanomembranes,two pH real-time monitoring sensors with distinct advantages were developed using stainless steel needles and gold wire microneedles,achieving real-time pH detection.The results indicate that the biosensor produces a millivolt output voltage and has a response time of just a few seconds.In summary,the nanomaterial-modified microneedle biosensor proposed in this paper offers high sensitivity,minimal invasiveness,rapid response,and simple structure,effectively enabling real-time pH monitoring.