Fig. 4
From: Preparation, toxicity reduction and radiation therapy application of gold nanorods
(Reproduced with permission [30]. Copyright 2008, WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
A Schematic of template method: (a) aluminum, gold and tantalum oxide films are deposited onto glass substrates; (b) anodization of the aluminum film is carried out using sulfuric acid; (c) GNRs are electrochemically deposited in the porous template. B SEM images of (a) anodic aluminium oxide template created by self-assembly and (b) arrays of GNRs (350Â nm in length and 22Â nm in diameter, respectively) after removal of the template by chemical etching