Preparation of Nested g-C₃N₄ Fiber Surrounding Graphene Oxide and Its Photocatalytic Degradation of Rhodamine B.

g-C₃N₄ and graphene oxide (GO) are simultaneously introduced into electrospun polyacrylonitrile (PAN) nanofibers to form a nested structure. By Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS), g-C₃N₄ has been perfectly introduced into the PAN@GO nanofiber membrane and affects the porosity of the fiber itself. Comparison of nested electrospinning PAN/PAN@GO and different proportions of PAN@g-C₃N₄/PAN@GO nanofibers has a different effect on reducing the concentration and absorption of rhodamine B (RhB) dye in the visible region.

Deciphering the Adsorption Behavior of Volatile Organic Compounds with Electrospun Polyacrylonitrile/Molecular Sieve Nanocomposites.

In this study, a new type of molecular sieve/polyacrylonitrile fiber (M-PAN) was prepared by electrospinning to adsorb atmospheric volatile organic compounds (VOCs). The suitable content of molecular sieve in nanocomposites was also determined for achieving maximum VOCs adsorption capacity. SEM, TEM and N₂ adsorption/desorption analyzer were performed for characterization of the surface morphology, structural properties, surface area and pore size.

Improved immunogenicity of a self tumor antigen by covalent linkage to CD40 ligand.

The interaction between the CD40 ligand (CD40L) and CD40 on antigen-presenting cells (APCs) is critical in promoting humoral and cellular immune responses. Agonistic anti-CD40 monoclonal antibody and soluble CD40L can act as powerful adjuvants to promote vaccination, but usually require repeated high-dose treatment. In this study, we demonstrate that the adjuvant effect of CD40L can be greatly improved by directly linking the antigen to CD40L.