Microscopic characterization of composite fibers. (a) SEM image of AgNO3-PVP/APTMS/TEOS composite mat. (b) TEM image of AgNO3-PVP/APTMS/TEOS fiber (showing durable fiber; the black dots are small and highly dispersed silver metal particles). (c) TEM image of AgNO3-PVP/TEOS fiber (showing unstable fiber; the black dots are bigger and aggregated silver metal particles). (d) HR-TEM image of AgNO3-PVP/APTMS/TEOS fiber showing 5-nm crystal silver metal particles.
Umar et al. Nanoscale Research Letters 2013 8:164 doi:10.1186/1556-276X-8-164