Control of Size and Aspect Ratio in Hydroquinone-Based Synthesis of
Gold Nanorods - Supporting Information
Carlo Morasso1, Silvia Picciolini1, Domitilla Schiumarini1, Dora Mehn2, Isaac Ojea-Jiménez2, Giuliano
Zanchetta3, Renzo Vanna1, Marzia Bedoni1, Davide Prosperi4 and Furio Gramatica1
1
LABION - Laboratory of Nanomedicine and Clinical Biophotonics, Fondazione Don Carlo Gnocchi ONLUS, Via
Capecelatro 66, 20148, Milan, Italy
2
Institute for Health and Consumer Protection (IHCP), European Commission Joint Research Centre, 21027, Ispra
(VA), Italy.
3
Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, Universitá degli Studi di Milano, via F.lli Cervi 93,
20090 Segrate, Italy.
4
NanoBioLab, Dipartimento di Biotecnologie e Bioscienze, Università degli Studi di Milano Bicocca, Piazza della
Scienza 2, 20126, Milan, Italy
UV Vis spectra of Au seed
Figure S1: UV-Vis spectrum of the gold seeds
Viscosity measure by Dynamic Light-Scattering:
Figure S2: viscosity of the CTAB solutions; with (black dots) or without (red dot) the addiction of hydroquinone .
Kinematic viscosity was measured with a capillary Ubbelohde viscometer.
Histograms with aspect ratio and length of AuNR with different concentrations of CTAB
Figure S3: Histogram of aspect ratio (left) and size distribution (right) of samples obtained using different
concentrations of CTAB (at least 200 nanorod for each sample)
10 mM CTAB:
20 mM CTAB:
40 mM CTAB:
60 mM CTAB:
80 mM CTAB:
100 mM CTAB:
TEM Images of AuNR:
Figure S4: TEM pictures have been taken on the samples centrifuged and resuspended in water.
10 mM CTAB:
20 mM CTAB:
30 mM CTAB:
40 mM CTAB
50 mM CTAB
70 mM CTAB
80 mM CTAB
100 mM CTAB
Histograms with aspect ratio and length of AuNR with different amounts of Ag +
Figure S5: Histogram of aspect ratio (left) and size distribution (right) of samples obtained using different
amounts of Ag+ ions (at least 200 nanorod for each sample)
Added Ag+ : 200 µL
Added Ag+ : 150 µL
Added Ag+ : 100 µL