Maintenance measures for tangential flow filtration system
05,11,2026 157 views
【InstrumentOnline R&D News】Recently, Professor Liang Yanjie's research group from the School of Materials Science and Engineering at Shandong University has made a series of progress in the field of self powered and self recovering solar blind ultraviolet externally induced luminescent new materials without pre irradiation. Relevant research results were published in the sub journal Light: Science&Applications (Top Journal of Chinese Academy of Sciences Zone 1, IF: 23.4) and the top journal Advanced Materials (Top Journal of Chinese Academy of Sciences Zone 1, IF: 26.8)。 Lv Xulong, a doctoral student from the School of Materials Science and Engineering at Shandong University, is the first author of the paper. Shandong University is the first corresponding author and the only corresponding author, respectively. Professor Liang Yanjie from the School of Materials Science and Engineering is the corresponding author.
Flexible luminescent elastomers have broad application prospects in the fields of next-generation wearable electronic devices, artificial skin, advanced sensing, and human-computer interaction due to their unique force light conversion characteristics. However, this type of material still faces many challenges in practical applications, including limited emission wavelength range, poor repeatability, insufficient cycling stability, and weak self recovery ability.
In response to the above issues, the team innovatively combined the designed and synthesized day blind ultraviolet fluorescent material with commercial polydimethylsiloxane (PDMS) to develop a high-performance, self powered, and self recovering day blind ultraviolet externally induced luminescent elastomer new material (Figure 1). Under various mechanical stimuli (such as stretching, bending, friction, impact, etc.) without the need for high-energy light pre irradiation, composite elastomer materials can generate broadband strong solar blind ultraviolet external photoluminescence with a peak at around 270 nm (the red area in the figure represents the invisible solar blind ultraviolet luminescence to the human eye). This composite elastomer material has excellent cyclic stability and fast and efficient self-healing properties. In 10000 rapid continuous tensile cycle tests, the photoluminescence signal can always be clearly captured by a day blind ultraviolet camera. In addition, after mechanical stimulation stops, the interface interactions in the system can self repair, thereby endowing the material with excellent self-healing properties. This study elucidates the self powered and self recovering mechanism of ultraviolet induced luminescence in composite elastomer materials through systematic experiments and theoretical analysis. Finally, based on the environmental light interference free and high photon energy characteristics of sun blind ultraviolet light, this study further demonstrates the potential applications of the elastomer material in self powered optical imaging labeling, optical positioning and tracking, advanced stress sensing, and microbial inactivation.
Liang Yanjie's research group has been engaged in long-term research on luminescent materials and devices, as well as biomedical materials. Currently, they are working on Light: Science & Applications、Physical Review Letters、Advanced Materials、Advanced Functional Materials、Advanced Optical Materials、ACS Applied Materials & Interfaces、Journal of Materials Chemistry C More than 80 research papers have been published in renowned academic journals in the fields of materials physics and materials chemistry. The related research work has received support from projects such as the National Natural Science Foundation of China, the Shandong Provincial Key R&D Program (Major Science and Technology Innovation Project), the Shandong Provincial Natural Science Foundation, the Guangdong Provincial Natural Science Foundation, Shandong University Qilu Young Scholars, and the "20 New Universities" in Jinan City.
