Optical and Electrochemical Biosensing

The transduction of unreadable chemical/biological components to readable optical or electrochemical signals utilizing different biosensing technologies is one of the important pathways of understanding the principles of nature. To achieve this ambitious goal, many biosensors have been developed to obtain useful information from complex systems (e.g. cells, tissues, and humans) ever since the first glucose biosensor was invented in 1967. Nowadays, biosensors are spread all over every branch of frontier science ranging from fundamental measurement science to advanced artificial intelligence technology. Although many transduction technologies are available so far, optical and electronic signals are still two of the most commonly used techniques as the detectable outputs for biosensors. Taking advantage of the development of additive manufacturing techniques such as 3D printing and the improved understanding of the biomolecules, optical and electrochemical biosensing technologies have also been developed on their sensitivity, selectivity and speed.

In view of the fast development in the area, we propose a Research Topic focused on the recent development of optical and electrochemical biosensing. The topics of the Research Topic cover various optical and electrochemical biosensors, which potentially promote the revolution of modern measurement techniques. Notably, this issue will not only cover the topics in individually used optical or electrochemical biosensors but also receive interconnection techniques between optical and electrochemical signals.

We welcome submissions in the following themes, but not limited to:
• Fundamental studies of the optical and electrochemical biosensing
• Optical biosensing techniques
• Electrochemical biosensing techniques
• Combined optical and electrochemical biosensors
• Commercializing of the optical and electrochemical biosensors
• In vivo and in vitro optical and electrochemical biosensing