Chiral Colloids: Homogeneous Suspension of Individualized SiO2 Helical and Twisted Nanoribbons

摘要: Finely tuned chiral nanometric silica fibers were synthesized based on sol-gel chemistry using organic self-assembly as a template. The optimization of the process in acidic conditions allowed us to reduce transcription time by factor 10. These nanohelices successfully fragmented while preserving fine internal structures from several micrometers hundreds nanometers length sonication method previously reported for carbon nanotubes. By carefully choosing nature solvent, power, pH case water, and densification walls freeze-drying, homogeneous stable colloidal suspensions individualized ribbons with controlled obtained.