Recently, scientists have prepared mesoporous WO₃ nanofibers, and discovered its new feature that this material has proved to have very large applications in reliability disease diagnosis. It is reported that the team took human exhaled gas as an object, and use of protein nano-cage module sensitization of electrospinning nanofibers (NFs) for detecting its tracking biological target sensitivity and selectively. In addition, the researchers prepared mesoporous WO₃ nanofibers with Pt, Pd and Rh uniformly distributed; after the precious metal catalysis, tungsten trioxide gas sensors still has outstanding sensitivity even in conditions of wet environment, gas concentration level of one-billionth. The most exciting news is that this modified mesoporous WO₃ nanofibers was confirmed to have a bright future in terms of reliability of disease diagnosis.

 

The reliability of disease diagnosis is an important prerequisite for the success of health care, and relates to the latter using medical and reasonable choice of treatment. Tungsten trioxide (WO₃) is a N-type transition metal oxide semiconductor material, which has excellent gas sensitivity, electrochromic, photochromic, electrochromic, gasochromic and catalytic properties, and therefore has great potential application value in fields of flat panel display, smart windows, optical devices of write - read - rub, gas sensors and catalyst. Further, the nanostructure tungsten trioxide with the specific composition and morphology has special properties, which help it applies in many meaningful practical operations.

 

In the operation process, the conventional semiconductor sensor nanoparticles requires heating to activate its properties, however, in the long-term heating condition, nanoparticles prone to reunite each other and result in the reducing of sensitive material’s specific surface area which is not conducive to the absorption of the tested gas. Study has found that the mesoporous nanofibers due to its unique geometry and high surface area to overcome the shortcomings of the traditional nanoparticle material, and to have excellent properties to effectively improve the response and recovery property of the sensitive material.