Zhang, Jiayin; Wang, Qiyu; Hong, Liang; Song, Guoli; Zhang, Zhiguo published an article in 2021. The article was titled 《Optimal fluorescence and photosensitivity properties of dual-functional NaYb1-xF4:Tmx3+ nanoparticles for applications in imaging guided photodynamic therapy》, and you may find the article in RSC Advances.Formula: C20H14O The information in the text is summarized as follows:
The fluorescence and photosensitivity properties of NaYb1-xF4:Tmx3+ nanoparticles were optimized to develop noninvasive near-IR fluorescence imaging-guided photodynamic therapy. The emission at 800 nm from Tm3+ presented an exponential increase with an increase in the Tm3+ doping concentration from 0 to 2%. The photosensitivity properties of NaYb1-xF4:Tmx3+ nanoparticles were also studied via the chemoprobe method, which used a reactive oxygen quencher, 1,3-diphenylisobenzofuran (DPBF). With the increase in the doping concentration of Tm3+, the generation rate of reactive oxygen species in NaYb1-xF4:Tmx3+ nanoparticles decreased linearly at a rate of 0.3. The doping concentration of Tm3+ had two opposite effects on the 800 nm emission and generation rates of reactive oxygen species. The competitive relationship was discussed and an optimal value for the Tm3+ doping concentration of approx. 1% was determined At this concentration, the energy of the Yb3+ excited state can be fully utilized, and the fluorescence and photosensitivity properties are an effective combination. In addition to this study using 1,3-Diphenylisobenzofuran, there are many other studies that have used 1,3-Diphenylisobenzofuran(cas: 5471-63-6Formula: C20H14O) was used in this study.
1,3-Diphenylisobenzofuran(cas: 5471-63-6) can be used as a fluorescent probe for detection of superoxide anion radical (O2−) inside the membrane lipid layer by DPBF fluorescence quenching method. 1,3-Diphenylisobenzofuran(DPBF) can be used as quencher during the photoinactivation of TA-3 mouse mammary carcinoma cells containing hematoporphyrin.Formula: C20H14O
Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem