In the not usefull for us research front:
interesting use of honey, wonder if it is ultrafiltered?
http://www.sciencedirect.com/science/article/pii/S1386142509007057
Honey mediated green synthesis of silver nanoparticles (there is
another one of same author about gold)

Abstract
The paper reports the pH controlled synthesis of silver nanoparticles
using honey as reducing and stabilizing agents. By adjusting the pH of
the aqueous solution containing metal ions and honey, nanoparticles of
various size could be obtained at room temperature. The nanoparticles
were characterized by UV–visible, high-resolution TEM, XRD and FTIR
measurements. The colloid obtained at a pH of 8.5 is found to consist
of monodispersed and nearly spherical silver nanoparticles of size ∼4
nm which is a significant advancement in biosynthesis. The high
crystallinity with fcc phase is evidenced by clear lattice fringes in
the high-resolution TEM image and peaks in the XRD pattern
corresponding to (1 1 1), (2 0 0), (2 2 0), (3 1 1) and (2 2 2)
planes. FTIR spectrum indicates that the nanoparticles are bound to
protein through the carboxylate ion group.

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