On August 15, the Photonic Nose and Molecular Materials Group received a certificate issued by the U.S. Patent Office, notifying that a laminated fluorescent sensor comprising a sealable sensor housing and an optical sensing system developed by Prof. Fang Yu and Wen Ruijuan as the inventors has been granted a U.S. patent with a patent certificate number of 11255787 on February 22, 2022.

This laminated fluorescent sensor has previously been granted a Chinese utility model patent on December 12, 2017, with the patent certificate number of 201720345838.3.

This laminated fluorescent sensor includes a sealable sensor housing and an optical sensing system embedded inside the sensor housing. The optical sensing system includes a light source, a short wave pass filter, an air chamber, a sensing unit, a long wave pass filter set and an optical signal collecting unit from top to bottom all of which are coaxially set. The optical signal collecting unit is connected with a signal processing system; the sensor housing has air inlets and an air pumping port. The air inlets are communicated with the air chamber through an air intake passage, and the air chamber is communicated with the air pumping port through an air pumping passage. It is compact and can be easily arrayed for simultaneously detecting two or more detected objects, has a high signal-to-noise ratio, is applicable in quick detection of micro-trace chemicals including but not limited to explosives and narcotics, is highly effective, stable and accurate in detection, and has distinctly distinguishable signal responses to objects not being detected and to objects being detected.