Study of SiRNA-loaded PS-mPEG/CaP nanospheres on lung cancer

The TiO₂/BiOI heterostructured nanofibers were prepared by electrospinning–solvothermal two-step process. The BiOI nanosheets, which owned a thickness of tens of nanometers and an average side length of about 300 nm, were intensive and crossed arranging on the TiO₂ nanofibers whose diameter was about 400–550 nm and length was about 15–45 μm. The absorption edge of TiO₂/BiOI heterostructured nanofibers was extended to more than 600 nm in visible-light region and the TiO₂/BiOI exhibited enhanced visible-light photocatalytic performance and excellent recyclability compared to the individual TiO₂ nanofibers and the BiOI microflowers in the photodecomposition of methylene blue, which was ascribed to nanoscale size heterostructure, narrow energy band, peculiar band gap structures, and porous surface structure.