Dear Colleagues,

Fluorescence-based sensors have been a growing research field for many years. Among fluorescent sensors, biosensors have progressed remarkably, and many researchers have developed superior sensors that can measure not only biological macromolecules such as proteins and nucleic acids, but also small molecules such as amino acids, sugars, and pharmaceuticals. Therefore, these are becoming an indispensable measurement technology in the fields of pharmaceuticals, agriculture, and the environment. If fluorescent probes are also considered a category of sensors, fluorescent imaging techniques using these probes are very useful for solving unknown biological processes in tissues or cells. On the other hand, sensors for on-site analysis must be usable by anyone, anywhere, at any time, and therefore measurement operation must be not only very simple but also quick. Increasing the sensitivity of these sensors is an important mission, and an approach to solving this problem has been reported using the phenomenon of fluorescence intensity enhancement through the use of inorganic metal nanomaterials. In this Special Issue, we welcome submissions of papers that introduce new principles of sensors and applications of sensors to discuss new possibilities of fluorescence-based sensors, which are making remarkable progress as described above.

Dr. Atsushi Shoji
Dr. Tsukuru Minamiki
Dr. Kazuhiro Morioka
Dr. Yukiko Moriiwa
Guest Editors

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• on-site analysis
• cell analysis
• imaging
• fluorescent protein
• fluorescent quantum dot
• fluorescent polymer
• fluorescence particle
• microlfluidics
• lab-on-a-chip