Synthesis of silver nanoparticles and of self assembled supramolecules from marine humic acid

This paper reports on the synthesis of spherical silver nanoparticles and the consequent formation of self-assembled humic-silver supramolecules. The method described in this article is eco-friendly and the supramolecules formed were stable for several months. The silver nanoparticles themselves were synthesised from humic acid extracted from mudbank sediments (from Aleppey, south west coast of India) and characterised by UV-Vis spectra and HRTEM. Tuning of dipole and quadrouple oscillation of spherical nanoparticles was achieved. Variable self-assembled distribution mechanism of humic-silver nanoparticles in the solution responsible for quadrouple intensification was investigated.