A sol-gel process has been developed to incorporate bionanoparticles,such as turnip yellow mosaic virus,cowpea mosaic virus,tobacco mosaic virus,and ferritin into silica,while maintaining the integrity and morphology ...A sol-gel process has been developed to incorporate bionanoparticles,such as turnip yellow mosaic virus,cowpea mosaic virus,tobacco mosaic virus,and ferritin into silica,while maintaining the integrity and morphology of the particles.The structures of the resulting materials were characterized by transmission electron microscopy,small angle X-ray scattering,and N2 adsorption desorption analysis.The results show that the shape and surface morphology of the bionanoparticles are largely preserved after being embedded into silica.After removal of the bionanoparticles by calcination,mesoporous silica with monodisperse pores,having the shape and surface morphology of the bionanoparticles replicated inside the silica,was produced,.This study is expected to lead to both functional composite materials and mesoporous silica with structurally well-defi ned large pores.展开更多
基金from NSF-DMR-0706431,NSF Career Award,the Camille Dreyfus Teacher-Scholarshipthe Alfred P.Sloan Foundation,US ARO MURI program,and the W.M.Keck Foundation+1 种基金The SAXS data were obtained at beamline X21 of the National Synchrotron Light Source,Brookhaven National LaboratoryThe use of NSLS was supported by the U.S.Department of Energy,Office of Science,Office of Basic Energy Sciences,under Contract No.DE-AC02-98CH10886.
文摘A sol-gel process has been developed to incorporate bionanoparticles,such as turnip yellow mosaic virus,cowpea mosaic virus,tobacco mosaic virus,and ferritin into silica,while maintaining the integrity and morphology of the particles.The structures of the resulting materials were characterized by transmission electron microscopy,small angle X-ray scattering,and N2 adsorption desorption analysis.The results show that the shape and surface morphology of the bionanoparticles are largely preserved after being embedded into silica.After removal of the bionanoparticles by calcination,mesoporous silica with monodisperse pores,having the shape and surface morphology of the bionanoparticles replicated inside the silica,was produced,.This study is expected to lead to both functional composite materials and mesoporous silica with structurally well-defi ned large pores.
